hyperscript.org/dist/_hyperscript_w9y.min.js.map

{"version":3,"file":"_hyperscript_w9y.min.js","sources":["../src/lib/utils.js","../src/lib/core.js","../src/lib/plugin/socket.js","../src/lib/plugin/template.js","../src/lib/web.js","../src/web/_hyperscript_w9y.js","../src/lib/plugin/worker.js","../src/lib/plugin/eventsource.js","../src/lib/plugin/hdb.js"],"sourcesContent":["\n/**\n * mergeObjects combines the keys from obj2 into obj2, then returns obj1\n *\n * @param {object} obj1\n * @param {object} obj2\n * @returns object\n */\nexport function mergeObjects(obj1, obj2) {\n\tfor (var key in obj2) {\n\t\tif (obj2.hasOwnProperty(key)) {\n\t\t\tobj1[key] = obj2[key];\n\t\t}\n\t}\n\treturn obj1;\n}\n\nexport function getOrInitObject(root, prop) {\n\tvar value = root[prop];\n\tif (value) {\n\t\treturn value;\n\t} else {\n\t\tvar newObj = {};\n\t\troot[prop] = newObj;\n\t\treturn newObj;\n\t}\n}\n\n/**\n * parseJSON parses a JSON string into a corresponding value.  If the\n * value passed in is not valid JSON, then it logs an error and returns `null`.\n *\n * @param {string} jString\n * @returns any\n */\nexport function parseJSON(jString) {\n\ttry {\n\t\treturn JSON.parse(jString);\n\t} catch (error) {\n\t\tlogError(error);\n\t\treturn null;\n\t}\n}\n\n/**\n * logError writes an error message to the Javascript console.  It can take any\n * value, but msg should commonly be a simple string.\n * @param {*} msg\n */\nexport function logError(msg) {\n\tif (console.error) {\n\t\tconsole.error(msg);\n\t} else if (console.log) {\n\t\tconsole.log(\"ERROR: \", msg);\n\t}\n}\n\n// TODO: JSDoc description of what's happening here\nexport function varargConstructor(Cls, args) {\n\treturn new (Cls.bind.apply(Cls, [Cls].concat(args)))();\n}\n","///=========================================================================\n/// This module provides the core runtime and grammar for hyperscript\n///=========================================================================\n\nimport {getOrInitObject, mergeObjects, parseJSON, varargConstructor} from \"./utils.js\";\n\n\n/**\n * @type {HyperscriptObject}\n */\nlet _hyperscript\n\nvar globalScope = globalThis;\n\n//====================================================================\n// Standard library\n//====================================================================\n\nclass ElementCollection {\n\tconstructor(css, relativeToElement, escape) {\n\t\tthis._css = css;\n\t\tthis.relativeToElement = relativeToElement;\n\t\tthis.escape = escape;\n\t}\n\n\tget css() {\n\t\tif (this.escape) {\n\t\t\treturn _runtime.escapeSelector(this._css);\n\t\t} else {\n\t\t\treturn this._css;\n\t\t}\n\t}\n\n\tget className() {\n\t\treturn this._css.substr(1);\n\t}\n\n\tget id() {\n\t\treturn this.className();\n\t}\n\n\tcontains(elt) {\n\t\tfor (let element of this) {\n\t\t\tif (element.contains(elt)) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t\treturn false;\n\t}\n\n\tget length() {\n\t\treturn this.selectMatches().length;\n\t}\n\n\t[Symbol.iterator]() {\n\t\tlet query = this.selectMatches();\n\t\treturn query [Symbol.iterator]();\n\t}\n\n\tselectMatches() {\n\t\tlet query = _runtime.getRootNode(this.relativeToElement).querySelectorAll(this.css);\n\t\treturn query;\n\t}\n}\n\n//====================================================================\n// Lexer\n//====================================================================\n\n/** @type LexerObject */\nvar _lexer = (function () {\n\tvar OP_TABLE = {\n\t\t\"+\": \"PLUS\",\n\t\t\"-\": \"MINUS\",\n\t\t\"*\": \"MULTIPLY\",\n\t\t\"/\": \"DIVIDE\",\n\t\t\".\": \"PERIOD\",\n\t\t\"..\": \"ELLIPSIS\",\n\t\t\"\\\\\": \"BACKSLASH\",\n\t\t\":\": \"COLON\",\n\t\t\"%\": \"PERCENT\",\n\t\t\"|\": \"PIPE\",\n\t\t\"!\": \"EXCLAMATION\",\n\t\t\"?\": \"QUESTION\",\n\t\t\"#\": \"POUND\",\n\t\t\"&\": \"AMPERSAND\",\n\t\t$: \"DOLLAR\",\n\t\t\";\": \"SEMI\",\n\t\t\",\": \"COMMA\",\n\t\t\"(\": \"L_PAREN\",\n\t\t\")\": \"R_PAREN\",\n\t\t\"<\": \"L_ANG\",\n\t\t\">\": \"R_ANG\",\n\t\t\"<=\": \"LTE_ANG\",\n\t\t\">=\": \"GTE_ANG\",\n\t\t\"==\": \"EQ\",\n\t\t\"===\": \"EQQ\",\n\t\t\"!=\": \"NEQ\",\n\t\t\"!==\": \"NEQQ\",\n\t\t\"{\": \"L_BRACE\",\n\t\t\"}\": \"R_BRACE\",\n\t\t\"[\": \"L_BRACKET\",\n\t\t\"]\": \"R_BRACKET\",\n\t\t\"=\": \"EQUALS\",\n\t};\n\n\t/**\n\t * isValidCSSClassChar returns `true` if the provided character is valid in a CSS class.\n\t * @param {string} c\n\t * @returns boolean\n\t */\n\tfunction isValidCSSClassChar(c) {\n\t\treturn isAlpha(c) || isNumeric(c) || c === \"-\" || c === \"_\" || c === \":\";\n\t}\n\n\t/**\n\t * isValidCSSIDChar returns `true` if the provided character is valid in a CSS ID\n\t * @param {string} c\n\t * @returns boolean\n\t */\n\tfunction isValidCSSIDChar(c) {\n\t\treturn isAlpha(c) || isNumeric(c) || c === \"-\" || c === \"_\" || c === \":\";\n\t}\n\n\t/**\n\t * isWhitespace returns `true` if the provided character is whitespace.\n\t * @param {string} c\n\t * @returns boolean\n\t */\n\tfunction isWhitespace(c) {\n\t\treturn c === \" \" || c === \"\\t\" || isNewline(c);\n\t}\n\n\t/**\n\t * positionString returns a string representation of a Token's line and column details.\n\t * @param {Token} token\n\t * @returns string\n\t */\n\tfunction positionString(token) {\n\t\treturn \"[Line: \" + token.line + \", Column: \" + token.column + \"]\";\n\t}\n\n\t/**\n\t * isNewline returns `true` if the provided character is a carrage return or newline\n\t * @param {string} c\n\t * @returns boolean\n\t */\n\tfunction isNewline(c) {\n\t\treturn c === \"\\r\" || c === \"\\n\";\n\t}\n\n\t/**\n\t * isNumeric returns `true` if the provided character is a number (0-9)\n\t * @param {string} c\n\t * @returns boolean\n\t */\n\tfunction isNumeric(c) {\n\t\treturn c >= \"0\" && c <= \"9\";\n\t}\n\n\t/**\n\t * isAlpha returns `true` if the provided character is a letter in the alphabet\n\t * @param {string} c\n\t * @returns boolean\n\t */\n\tfunction isAlpha(c) {\n\t\treturn (c >= \"a\" && c <= \"z\") || (c >= \"A\" && c <= \"Z\");\n\t}\n\n\t/**\n\t * @param {string} c\n\t * @param {boolean} [dollarIsOp]\n\t * @returns boolean\n\t */\n\tfunction isIdentifierChar(c, dollarIsOp) {\n\t\treturn c === \"_\" || c === \"$\";\n\t}\n\n\t/**\n\t * @param {string} c\n\t * @returns boolean\n\t */\n\tfunction isReservedChar(c) {\n\t\treturn c === \"`\" || c === \"^\";\n\t}\n\n\t/**\n\t * @param {Token[]} tokens\n\t * @param {Token[]} consumed\n\t * @param {string} source\n\t * @returns {TokensObject}\n\t */\n\tfunction makeTokensObject(tokens, consumed, source) {\n\t\tconsumeWhitespace(); // consume initial whitespace\n\n\t\t/** @type Token | null */\n\t\tvar _lastConsumed = null;\n\n\t\tfunction consumeWhitespace() {\n\t\t\twhile (token(0, true).type === \"WHITESPACE\") {\n\t\t\t\tconsumed.push(tokens.shift());\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @param {TokensObject} tokens\n\t\t * @param {*} error\n\t\t */\n\t\tfunction raiseError(tokens, error) {\n\t\t\t_parser.raiseParseError(tokens, error);\n\t\t}\n\n\t\t/**\n\t\t * @param {string} value\n\t\t * @returns {Token}\n\t\t */\n\t\tfunction requireOpToken(value) {\n\t\t\tvar token = matchOpToken(value);\n\t\t\tif (token) {\n\t\t\t\treturn token;\n\t\t\t} else {\n\t\t\t\traiseError(this, \"Expected '\" + value + \"' but found '\" + currentToken().value + \"'\");\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @param {string} op1\n\t\t * @param {string} [op2]\n\t\t * @param {string} [op3]\n\t\t * @returns {Token | void}\n\t\t */\n\t\tfunction matchAnyOpToken(op1, op2, op3) {\n\t\t\tfor (var i = 0; i < arguments.length; i++) {\n\t\t\t\tvar opToken = arguments[i];\n\t\t\t\tvar match = matchOpToken(opToken);\n\t\t\t\tif (match) {\n\t\t\t\t\treturn match;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @param {string} op1\n\t\t * @param {string} [op2]\n\t\t * @param {string} [op3]\n\t\t * @returns {Token | void}\n\t\t */\n\t\tfunction matchAnyToken(op1, op2, op3) {\n\t\t\tfor (var i = 0; i < arguments.length; i++) {\n\t\t\t\tvar opToken = arguments[i];\n\t\t\t\tvar match = matchToken(opToken);\n\t\t\t\tif (match) {\n\t\t\t\t\treturn match;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @param {string} value\n\t\t * @returns {Token | void}\n\t\t */\n\t\tfunction matchOpToken(value) {\n\t\t\tif (currentToken() && currentToken().op && currentToken().value === value) {\n\t\t\t\treturn consumeToken();\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @param {string} type1\n\t\t * @param {string} [type2]\n\t\t * @param {string} [type3]\n\t\t * @param {string} [type4]\n\t\t * @returns {Token}\n\t\t */\n\t\tfunction requireTokenType(type1, type2, type3, type4) {\n\t\t\tvar token = matchTokenType(type1, type2, type3, type4);\n\t\t\tif (token) {\n\t\t\t\treturn token;\n\t\t\t} else {\n\t\t\t\traiseError(this, \"Expected one of \" + JSON.stringify([type1, type2, type3]));\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @param {string} type1\n\t\t * @param {string} [type2]\n\t\t * @param {string} [type3]\n\t\t * @param {string} [type4]\n\t\t * @returns {Token | void}\n\t\t */\n\t\tfunction matchTokenType(type1, type2, type3, type4) {\n\t\t\tif (\n\t\t\t\tcurrentToken() &&\n\t\t\t\tcurrentToken().type &&\n\t\t\t\t[type1, type2, type3, type4].indexOf(currentToken().type) >= 0\n\t\t\t) {\n\t\t\t\treturn consumeToken();\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @param {string} value\n\t\t * @param {string} [type]\n\t\t * @returns {Token}\n\t\t */\n\t\tfunction requireToken(value, type) {\n\t\t\tvar token = matchToken(value, type);\n\t\t\tif (token) {\n\t\t\t\treturn token;\n\t\t\t} else {\n\t\t\t\traiseError(this, \"Expected '\" + value + \"' but found '\" + currentToken().value + \"'\");\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @param {string} value\n\t\t * @param {string} [type]\n\t\t * @returns {Token | void}\n\t\t */\n\t\tfunction matchToken(value, type) {\n\t\t\tif (follows.indexOf(value) !== -1) {\n\t\t\t\treturn; // disallowed token here\n\t\t\t}\n\t\t\tvar type = type || \"IDENTIFIER\";\n\t\t\tif (currentToken() && currentToken().value === value && currentToken().type === type) {\n\t\t\t\treturn consumeToken();\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @returns {Token}\n\t\t */\n\t\tfunction consumeToken() {\n\t\t\tvar match = tokens.shift();\n\t\t\tconsumed.push(match);\n\t\t\t_lastConsumed = match;\n\t\t\tconsumeWhitespace(); // consume any whitespace\n\t\t\treturn match;\n\t\t}\n\n\t\t/**\n\t\t * @param {string} value\n\t\t * @param {string} [type]\n\t\t * @returns {Token[]}\n\t\t */\n\t\tfunction consumeUntil(value, type) {\n\t\t\t/** @type Token[] */\n\t\t\tvar tokenList = [];\n\t\t\tvar currentToken = token(0, true);\n\n\t\t\twhile (\n\t\t\t\t(type == null || currentToken.type !== type) &&\n\t\t\t\t(value == null || currentToken.value !== value) &&\n\t\t\t\tcurrentToken.type !== \"EOF\"\n\t\t\t) {\n\t\t\t\tvar match = tokens.shift();\n\t\t\t\tconsumed.push(match);\n\t\t\t\ttokenList.push(currentToken);\n\t\t\t\tcurrentToken = token(0, true);\n\t\t\t}\n\t\t\tconsumeWhitespace(); // consume any whitespace\n\t\t\treturn tokenList;\n\t\t}\n\n\t\t/**\n\t\t * @returns {string}\n\t\t */\n\t\tfunction lastWhitespace() {\n\t\t\tif (consumed[consumed.length - 1] && consumed[consumed.length - 1].type === \"WHITESPACE\") {\n\t\t\t\treturn consumed[consumed.length - 1].value;\n\t\t\t} else {\n\t\t\t\treturn \"\";\n\t\t\t}\n\t\t}\n\n\t\tfunction consumeUntilWhitespace() {\n\t\t\treturn consumeUntil(null, \"WHITESPACE\");\n\t\t}\n\n\t\t/**\n\t\t * @returns {boolean}\n\t\t */\n\t\tfunction hasMore() {\n\t\t\treturn tokens.length > 0;\n\t\t}\n\n\t\t/**\n\t\t * @param {number} n\n\t\t * @param {boolean} [dontIgnoreWhitespace]\n\t\t * @returns {Token}\n\t\t */\n\t\tfunction token(n, dontIgnoreWhitespace) {\n\t\t\tvar /**@type {Token}*/ token;\n\t\t\tvar i = 0;\n\t\t\tdo {\n\t\t\t\tif (!dontIgnoreWhitespace) {\n\t\t\t\t\twhile (tokens[i] && tokens[i].type === \"WHITESPACE\") {\n\t\t\t\t\t\ti++;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\ttoken = tokens[i];\n\t\t\t\tn--;\n\t\t\t\ti++;\n\t\t\t} while (n > -1);\n\t\t\tif (token) {\n\t\t\t\treturn token;\n\t\t\t} else {\n\t\t\t\treturn {\n\t\t\t\t\ttype: \"EOF\",\n\t\t\t\t\tvalue: \"<<<EOF>>>\",\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @returns {Token}\n\t\t */\n\t\tfunction currentToken() {\n\t\t\treturn token(0);\n\t\t}\n\n\t\t/**\n\t\t * @returns {Token | null}\n\t\t */\n\t\tfunction lastMatch() {\n\t\t\treturn _lastConsumed;\n\t\t}\n\n\t\t/**\n\t\t * @returns {string}\n\t\t */\n\t\tfunction sourceFor() {\n\t\t\treturn source.substring(this.startToken.start, this.endToken.end);\n\t\t}\n\n\t\t/**\n\t\t * @returns {string}\n\t\t */\n\t\tfunction lineFor() {\n\t\t\treturn source.split(\"\\n\")[this.startToken.line - 1];\n\t\t}\n\n\t\tvar follows = [];\n\n\t\tfunction pushFollow(str) {\n\t\t\tfollows.push(str);\n\t\t}\n\n\t\tfunction popFollow() {\n\t\t\tfollows.pop();\n\t\t}\n\n\t\tfunction clearFollows() {\n\t\t\tvar tmp = follows;\n\t\t\tfollows = [];\n\t\t\treturn tmp;\n\t\t}\n\n\t\tfunction restoreFollows(f) {\n\t\t\tfollows = f;\n\t\t}\n\n\t\t/** @type {TokensObject} */\n\t\treturn {\n\t\t\tpushFollow: pushFollow,\n\t\t\tpopFollow: popFollow,\n\t\t\tclearFollow: clearFollows,\n\t\t\trestoreFollow: restoreFollows,\n\t\t\tmatchAnyToken: matchAnyToken,\n\t\t\tmatchAnyOpToken: matchAnyOpToken,\n\t\t\tmatchOpToken: matchOpToken,\n\t\t\trequireOpToken: requireOpToken,\n\t\t\tmatchTokenType: matchTokenType,\n\t\t\trequireTokenType: requireTokenType,\n\t\t\tconsumeToken: consumeToken,\n\t\t\tmatchToken: matchToken,\n\t\t\trequireToken: requireToken,\n\t\t\tlist: tokens,\n\t\t\tconsumed: consumed,\n\t\t\tsource: source,\n\t\t\thasMore: hasMore,\n\t\t\tcurrentToken: currentToken,\n\t\t\tlastMatch: lastMatch,\n\t\t\ttoken: token,\n\t\t\tconsumeUntil: consumeUntil,\n\t\t\tconsumeUntilWhitespace: consumeUntilWhitespace,\n\t\t\tlastWhitespace: lastWhitespace,\n\t\t\tsourceFor: sourceFor,\n\t\t\tlineFor: lineFor,\n\t\t};\n\t}\n\n\t/**\n\t * @param {Token[]} tokens\n\t * @returns {boolean}\n\t */\n\tfunction isValidSingleQuoteStringStart(tokens) {\n\t\tif (tokens.length > 0) {\n\t\t\tvar previousToken = tokens[tokens.length - 1];\n\t\t\tif (\n\t\t\t\tpreviousToken.type === \"IDENTIFIER\" ||\n\t\t\t\tpreviousToken.type === \"CLASS_REF\" ||\n\t\t\t\tpreviousToken.type === \"ID_REF\"\n\t\t\t) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t\tif (previousToken.op && (previousToken.value === \">\" || previousToken.value === \")\")) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t}\n\t\treturn true;\n\t}\n\n\t/**\n\t * @param {string} string\n\t * @param {boolean} [template]\n\t * @returns {TokensObject}\n\t */\n\tfunction tokenize(string, template) {\n\t\tvar tokens = /** @type {Token[]}*/ [];\n\t\tvar source = string;\n\t\tvar position = 0;\n\t\tvar column = 0;\n\t\tvar line = 1;\n\t\tvar lastToken = \"<START>\";\n\t\tvar templateBraceCount = 0;\n\n\t\tfunction inTemplate() {\n\t\t\treturn template && templateBraceCount === 0;\n\t\t}\n\n\t\twhile (position < source.length) {\n\t\t\tif (currentChar() === \"-\" && nextChar() === \"-\" && (isWhitespace(charAfterThat()) || charAfterThat() === \"\")) {\n\t\t\t\tconsumeComment();\n\t\t\t} else {\n\t\t\t\tif (isWhitespace(currentChar())) {\n\t\t\t\t\ttokens.push(consumeWhitespace());\n\t\t\t\t} else if (\n\t\t\t\t\t!possiblePrecedingSymbol() &&\n\t\t\t\t\tcurrentChar() === \".\" &&\n\t\t\t\t\t(isAlpha(nextChar()) || nextChar() === \"{\")\n\t\t\t\t) {\n\t\t\t\t\ttokens.push(consumeClassReference());\n\t\t\t\t} else if (\n\t\t\t\t\t!possiblePrecedingSymbol() &&\n\t\t\t\t\tcurrentChar() === \"#\" &&\n\t\t\t\t\t(isAlpha(nextChar()) || nextChar() === \"{\")\n\t\t\t\t) {\n\t\t\t\t\ttokens.push(consumeIdReference());\n\t\t\t\t} else if (currentChar() === \"[\" && nextChar() === \"@\") {\n\t\t\t\t\ttokens.push(consumeAttributeReference());\n\t\t\t\t} else if (currentChar() === \"@\") {\n\t\t\t\t\ttokens.push(consumeShortAttributeReference());\n\t\t\t\t} else if (isAlpha(currentChar()) || (!inTemplate() && isIdentifierChar(currentChar()))) {\n\t\t\t\t\ttokens.push(consumeIdentifier());\n\t\t\t\t} else if (isNumeric(currentChar())) {\n\t\t\t\t\ttokens.push(consumeNumber());\n\t\t\t\t} else if (!inTemplate() && (currentChar() === '\"' || currentChar() === \"`\")) {\n\t\t\t\t\ttokens.push(consumeString());\n\t\t\t\t} else if (!inTemplate() && currentChar() === \"'\") {\n\t\t\t\t\tif (isValidSingleQuoteStringStart(tokens)) {\n\t\t\t\t\t\ttokens.push(consumeString());\n\t\t\t\t\t} else {\n\t\t\t\t\t\ttokens.push(consumeOp());\n\t\t\t\t\t}\n\t\t\t\t} else if (OP_TABLE[currentChar()]) {\n\t\t\t\t\tif (lastToken === \"$\" && currentChar() === \"{\") {\n\t\t\t\t\t\ttemplateBraceCount++;\n\t\t\t\t\t}\n\t\t\t\t\tif (currentChar() === \"}\") {\n\t\t\t\t\t\ttemplateBraceCount--;\n\t\t\t\t\t}\n\t\t\t\t\ttokens.push(consumeOp());\n\t\t\t\t} else if (inTemplate() || isReservedChar(currentChar())) {\n\t\t\t\t\ttokens.push(makeToken(\"RESERVED\", consumeChar()));\n\t\t\t\t} else {\n\t\t\t\t\tif (position < source.length) {\n\t\t\t\t\t\tthrow Error(\"Unknown token: \" + currentChar() + \" \");\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn makeTokensObject(tokens, [], source);\n\n\t\t/**\n\t\t * @param {string} [type]\n\t\t * @param {string} [value]\n\t\t * @returns {Token}\n\t\t */\n\t\tfunction makeOpToken(type, value) {\n\t\t\tvar token = makeToken(type, value);\n\t\t\ttoken.op = true;\n\t\t\treturn token;\n\t\t}\n\n\t\t/**\n\t\t * @param {string} [type]\n\t\t * @param {string} [value]\n\t\t * @returns {Token}\n\t\t */\n\t\tfunction makeToken(type, value) {\n\t\t\treturn {\n\t\t\t\ttype: type,\n\t\t\t\tvalue: value,\n\t\t\t\tstart: position,\n\t\t\t\tend: position + 1,\n\t\t\t\tcolumn: column,\n\t\t\t\tline: line,\n\t\t\t};\n\t\t}\n\n\t\tfunction consumeComment() {\n\t\t\twhile (currentChar() && !isNewline(currentChar())) {\n\t\t\t\tconsumeChar();\n\t\t\t}\n\t\t\tconsumeChar();\n\t\t}\n\n\t\t/**\n\t\t * @returns Token\n\t\t */\n\t\tfunction consumeClassReference() {\n\t\t\tvar classRef = makeToken(\"CLASS_REF\");\n\t\t\tvar value = consumeChar();\n\t\t\tif (currentChar() === \"{\") {\n\t\t\t\tclassRef.template = true;\n\t\t\t\tvalue += consumeChar();\n\t\t\t\twhile (currentChar() && currentChar() !== \"}\") {\n\t\t\t\t\tvalue += consumeChar();\n\t\t\t\t}\n\t\t\t\tif (currentChar() !== \"}\") {\n\t\t\t\t\tthrow Error(\"Unterminated class reference\");\n\t\t\t\t} else {\n\t\t\t\t\tvalue += consumeChar(); // consume final curly\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\twhile (isValidCSSClassChar(currentChar())) {\n\t\t\t\t\tvalue += consumeChar();\n\t\t\t\t}\n\t\t\t}\n\t\t\tclassRef.value = value;\n\t\t\tclassRef.end = position;\n\t\t\treturn classRef;\n\t\t}\n\n\t\t/**\n\t\t * @returns Token\n\t\t */\n\t\tfunction consumeAttributeReference() {\n\t\t\tvar attributeRef = makeToken(\"ATTRIBUTE_REF\");\n\t\t\tvar value = consumeChar();\n\t\t\twhile (position < source.length && currentChar() !== \"]\") {\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\tif (currentChar() === \"]\") {\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\tattributeRef.value = value;\n\t\t\tattributeRef.end = position;\n\t\t\treturn attributeRef;\n\t\t}\n\n\t\tfunction consumeShortAttributeReference() {\n\t\t\tvar attributeRef = makeToken(\"ATTRIBUTE_REF\");\n\t\t\tvar value = consumeChar();\n\t\t\twhile (isValidCSSIDChar(currentChar())) {\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\tattributeRef.value = value;\n\t\t\tattributeRef.end = position;\n\t\t\treturn attributeRef;\n\t\t}\n\n\t\t/**\n\t\t * @returns Token\n\t\t */\n\t\tfunction consumeIdReference() {\n\t\t\tvar idRef = makeToken(\"ID_REF\");\n\t\t\tvar value = consumeChar();\n\t\t\tif (currentChar() === \"{\") {\n\t\t\t\tidRef.template = true;\n\t\t\t\tvalue += consumeChar();\n\t\t\t\twhile (currentChar() && currentChar() !== \"}\") {\n\t\t\t\t\tvalue += consumeChar();\n\t\t\t\t}\n\t\t\t\tif (currentChar() !== \"}\") {\n\t\t\t\t\tthrow Error(\"Unterminated id reference\");\n\t\t\t\t} else {\n\t\t\t\t\tconsumeChar(); // consume final quote\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\twhile (isValidCSSIDChar(currentChar())) {\n\t\t\t\t\tvalue += consumeChar();\n\t\t\t\t}\n\t\t\t}\n\t\t\tidRef.value = value;\n\t\t\tidRef.end = position;\n\t\t\treturn idRef;\n\t\t}\n\n\t\t/**\n\t\t * @returns Token\n\t\t */\n\t\tfunction consumeIdentifier() {\n\t\t\tvar identifier = makeToken(\"IDENTIFIER\");\n\t\t\tvar value = consumeChar();\n\t\t\twhile (isAlpha(currentChar()) || isIdentifierChar(currentChar())) {\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\tidentifier.value = value;\n\t\t\tidentifier.end = position;\n\t\t\treturn identifier;\n\t\t}\n\n\t\t/**\n\t\t * @returns Token\n\t\t */\n\t\tfunction consumeNumber() {\n\t\t\tvar number = makeToken(\"NUMBER\");\n\t\t\tvar value = consumeChar();\n\t\t\twhile (isNumeric(currentChar())) {\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\tif (currentChar() === \".\" && isNumeric(nextChar())) {\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\twhile (isNumeric(currentChar())) {\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\tnumber.value = value;\n\t\t\tnumber.end = position;\n\t\t\treturn number;\n\t\t}\n\n\t\t/**\n\t\t * @returns Token\n\t\t */\n\t\tfunction consumeOp() {\n\t\t\tvar op = makeOpToken();\n\t\t\tvar value = consumeChar(); // consume leading char\n\t\t\twhile (currentChar() && OP_TABLE[value + currentChar()]) {\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\top.type = OP_TABLE[value];\n\t\t\top.value = value;\n\t\t\top.end = position;\n\t\t\treturn op;\n\t\t}\n\n\t\t/**\n\t\t * @returns Token\n\t\t */\n\t\tfunction consumeString() {\n\t\t\tvar string = makeToken(\"STRING\");\n\t\t\tvar startChar = consumeChar(); // consume leading quote\n\t\t\tvar value = \"\";\n\t\t\twhile (currentChar() && currentChar() !== startChar) {\n\t\t\t\tif (currentChar() === \"\\\\\") {\n\t\t\t\t\tconsumeChar(); // consume escape char and move on\n\t\t\t\t}\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\tif (currentChar() !== startChar) {\n\t\t\t\tthrow Error(\"Unterminated string at \" + positionString(string));\n\t\t\t} else {\n\t\t\t\tconsumeChar(); // consume final quote\n\t\t\t}\n\t\t\tstring.value = value;\n\t\t\tstring.end = position;\n\t\t\tstring.template = startChar === \"`\";\n\t\t\treturn string;\n\t\t}\n\n\t\t/**\n\t\t * @returns string\n\t\t */\n\t\tfunction currentChar() {\n\t\t\treturn source.charAt(position);\n\t\t}\n\n\t\t/**\n\t\t * @returns string\n\t\t */\n\t\tfunction nextChar() {\n\t\t\treturn source.charAt(position + 1);\n\t\t}\n\n\t\tfunction charAfterThat() {\n\t\t\treturn source.charAt(position + 2);\n\t\t}\n\n\t\t/**\n\t\t * @returns string\n\t\t */\n\t\tfunction consumeChar() {\n\t\t\tlastToken = currentChar();\n\t\t\tposition++;\n\t\t\tcolumn++;\n\t\t\treturn lastToken;\n\t\t}\n\n\t\t/**\n\t\t * @returns boolean\n\t\t */\n\t\tfunction possiblePrecedingSymbol() {\n\t\t\treturn (\n\t\t\t\tisAlpha(lastToken) ||\n\t\t\t\tisNumeric(lastToken) ||\n\t\t\t\tlastToken === \")\" ||\n\t\t\t\tlastToken === \"\\\"\" ||\n\t\t\t\tlastToken === \"'\" ||\n\t\t\t\tlastToken === \"`\" ||\n\t\t\t\tlastToken === \"}\" ||\n\t\t\t\tlastToken === \"]\"\n\t\t\t);\n\t\t}\n\n\t\t/**\n\t\t * @returns Token\n\t\t */\n\t\tfunction consumeWhitespace() {\n\t\t\tvar whitespace = makeToken(\"WHITESPACE\");\n\t\t\tvar value = \"\";\n\t\t\twhile (currentChar() && isWhitespace(currentChar())) {\n\t\t\t\tif (isNewline(currentChar())) {\n\t\t\t\t\tcolumn = 0;\n\t\t\t\t\tline++;\n\t\t\t\t}\n\t\t\t\tvalue += consumeChar();\n\t\t\t}\n\t\t\twhitespace.value = value;\n\t\t\twhitespace.end = position;\n\t\t\treturn whitespace;\n\t\t}\n\t}\n\n\treturn {\n\t\ttokenize: tokenize,\n\t\tmakeTokensObject: makeTokensObject,\n\t};\n})();\n\n//====================================================================\n// Parser\n//====================================================================\n\n/** @type ParserObject */\nvar _parser = (function () {\n\t/** @type {Object<string,GrammarDefinition>} */\n\tvar GRAMMAR = {};\n\n\t/** @type {Object<string,GrammarDefinition>} */\n\tvar COMMANDS = {};\n\n\t/** @type {Object<string,GrammarDefinition>} */\n\tvar FEATURES = {};\n\n\tvar LEAF_EXPRESSIONS = [];\n\tvar INDIRECT_EXPRESSIONS = [];\n\n\t/**\n\t * @param {*} parseElement\n\t * @param {*} start\n\t * @param {TokensObject} tokens\n\t */\n\tfunction initElt(parseElement, start, tokens) {\n\t\tparseElement.startToken = start;\n\t\tparseElement.sourceFor = tokens.sourceFor;\n\t\tparseElement.lineFor = tokens.lineFor;\n\t\tparseElement.programSource = tokens.source;\n\t}\n\n\t/**\n\t * @param {string} type\n\t * @param {TokensObject} tokens\n\t * @param {GrammarElement?} root\n\t * @returns GrammarElement\n\t */\n\tfunction parseElement(type, tokens, root = undefined) {\n\t\tvar elementDefinition = GRAMMAR[type];\n\t\tif (elementDefinition) {\n\t\t\tvar start = tokens.currentToken();\n\t\t\tvar parseElement = elementDefinition(_parser, _runtime, tokens, root);\n\t\t\tif (parseElement) {\n\t\t\t\tinitElt(parseElement, start, tokens);\n\t\t\t\tparseElement.endToken = parseElement.endToken || tokens.lastMatch();\n\t\t\t\tvar root = parseElement.root;\n\t\t\t\twhile (root != null) {\n\t\t\t\t\tinitElt(root, start, tokens);\n\t\t\t\t\troot = root.root;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn parseElement;\n\t\t}\n\t}\n\n\t/**\n\t * @param {string} type\n\t * @param {TokensObject} tokens\n\t * @param {string} [message]\n\t * @param {*} [root]\n\t * @returns {GrammarElement}\n\t */\n\tfunction requireElement(type, tokens, message, root) {\n\t\tvar result = parseElement(type, tokens, root);\n\t\tif (!result) raiseParseError(tokens, message || \"Expected \" + type);\n\t\t// @ts-ignore\n\t\treturn result;\n\t}\n\n\t/**\n\t * @param {string[]} types\n\t * @param {TokensObject} tokens\n\t * @returns {GrammarElement}\n\t */\n\tfunction parseAnyOf(types, tokens) {\n\t\tfor (var i = 0; i < types.length; i++) {\n\t\t\tvar type = types[i];\n\t\t\tvar expression = parseElement(type, tokens);\n\t\t\tif (expression) {\n\t\t\t\treturn expression;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * @param {string} name\n\t * @param {GrammarDefinition} definition\n\t */\n\tfunction addGrammarElement(name, definition) {\n\t\tGRAMMAR[name] = definition;\n\t}\n\n\t/**\n\t * @param {string} keyword\n\t * @param {GrammarDefinition} definition\n\t */\n\tfunction addCommand(keyword, definition) {\n\t\tvar commandGrammarType = keyword + \"Command\";\n\t\tvar commandDefinitionWrapper = function (parser, runtime, tokens) {\n\t\t\tconst commandElement = definition(parser, runtime, tokens);\n\t\t\tif (commandElement) {\n\t\t\t\tcommandElement.type = commandGrammarType;\n\t\t\t\tcommandElement.execute = function (context) {\n\t\t\t\t\tcontext.meta.command = commandElement;\n\t\t\t\t\treturn runtime.unifiedExec(this, context);\n\t\t\t\t};\n\t\t\t\treturn commandElement;\n\t\t\t}\n\t\t};\n\t\tGRAMMAR[commandGrammarType] = commandDefinitionWrapper;\n\t\tCOMMANDS[keyword] = commandDefinitionWrapper;\n\t}\n\n\t/**\n\t * @param {string} keyword\n\t * @param {GrammarDefinition} definition\n\t */\n\tfunction addFeature(keyword, definition) {\n\t\tvar featureGrammarType = keyword + \"Feature\";\n\n\t\t/** @type {GrammarDefinition} */\n\t\tvar featureDefinitionWrapper = function (parser, runtime, tokens) {\n\t\t\tvar featureElement = definition(parser, runtime, tokens);\n\t\t\tif (featureElement) {\n\t\t\t\tfeatureElement.isFeature = true;\n\t\t\t\tfeatureElement.keyword = keyword;\n\t\t\t\tfeatureElement.type = featureGrammarType;\n\t\t\t\treturn featureElement;\n\t\t\t}\n\t\t};\n\t\tGRAMMAR[featureGrammarType] = featureDefinitionWrapper;\n\t\tFEATURES[keyword] = featureDefinitionWrapper;\n\t}\n\n\t/**\n\t * @param {string} name\n\t * @param {GrammarDefinition} definition\n\t */\n\tfunction addLeafExpression(name, definition) {\n\t\tLEAF_EXPRESSIONS.push(name);\n\t\taddGrammarElement(name, definition);\n\t}\n\n\t/**\n\t * @param {string} name\n\t * @param {GrammarDefinition} definition\n\t */\n\tfunction addIndirectExpression(name, definition) {\n\t\tINDIRECT_EXPRESSIONS.push(name);\n\t\taddGrammarElement(name, definition);\n\t}\n\n\t/* ============================================================================================ */\n\t/* Core hyperscript Grammar Elements                                                            */\n\t/* ============================================================================================ */\n\taddGrammarElement(\"feature\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchOpToken(\"(\")) {\n\t\t\tvar featureElement = parser.requireElement(\"feature\", tokens);\n\t\t\ttokens.requireOpToken(\")\");\n\t\t\treturn featureElement;\n\t\t}\n\n\t\tvar featureDefinition = FEATURES[tokens.currentToken().value];\n\t\tif (featureDefinition) {\n\t\t\treturn featureDefinition(parser, runtime, tokens);\n\t\t}\n\t});\n\n\taddGrammarElement(\"command\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchOpToken(\"(\")) {\n\t\t\tconst commandElement = parser.requireElement(\"command\", tokens);\n\t\t\ttokens.requireOpToken(\")\");\n\t\t\treturn commandElement;\n\t\t}\n\n\t\tvar commandDefinition = COMMANDS[tokens.currentToken().value];\n\t\tlet commandElement;\n\t\tif (commandDefinition) {\n\t\t\tcommandElement = commandDefinition(parser, runtime, tokens);\n\t\t} else if (tokens.currentToken().type === \"IDENTIFIER\" && tokens.token(1).value === \"(\") {\n\t\t\tcommandElement = parser.requireElement(\"pseudoCommand\", tokens);\n\t\t}\n\t\tif (commandElement) {\n\t\t\treturn parser.parseElement(\"indirectStatement\", tokens, commandElement);\n\t\t}\n\n\t\treturn commandElement;\n\t});\n\n\taddGrammarElement(\"commandList\", function (parser, runtime, tokens) {\n\t\tvar cmd = parser.parseElement(\"command\", tokens);\n\t\tif (cmd) {\n\t\t\ttokens.matchToken(\"then\");\n\t\t\tconst next = parser.parseElement(\"commandList\", tokens);\n\t\t\tif (next) cmd.next = next;\n\t\t\treturn cmd;\n\t\t}\n\t});\n\n\taddGrammarElement(\"leaf\", function (parser, runtime, tokens) {\n\t\tvar result = parseAnyOf(LEAF_EXPRESSIONS, tokens);\n\t\t// symbol is last so it doesn't consume any constants\n\t\tif (result == null) {\n\t\t\treturn parseElement(\"symbol\", tokens);\n\t\t}\n\n\t\treturn result;\n\t});\n\n\taddGrammarElement(\"indirectExpression\", function (parser, runtime, tokens, root) {\n\t\tfor (var i = 0; i < INDIRECT_EXPRESSIONS.length; i++) {\n\t\t\tvar indirect = INDIRECT_EXPRESSIONS[i];\n\t\t\troot.endToken = tokens.lastMatch();\n\t\t\tvar result = parser.parseElement(indirect, tokens, root);\n\t\t\tif (result) {\n\t\t\t\treturn result;\n\t\t\t}\n\t\t}\n\t\treturn root;\n\t});\n\n\taddGrammarElement(\"indirectStatement\", function (parser, runtime, tokens, root) {\n\t\tif (tokens.matchToken(\"unless\")) {\n\t\t\troot.endToken = tokens.lastMatch();\n\t\t\tvar conditional = parser.requireElement(\"expression\", tokens);\n\t\t\tvar unless = {\n\t\t\t\ttype: \"unlessStatementModifier\",\n\t\t\t\targs: [conditional],\n\t\t\t\top: function (context, conditional) {\n\t\t\t\t\tif (conditional) {\n\t\t\t\t\t\treturn this.next;\n\t\t\t\t\t} else {\n\t\t\t\t\t\treturn root;\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\texecute: function (context) {\n\t\t\t\t\treturn runtime.unifiedExec(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t\troot.parent = unless;\n\t\t\treturn unless;\n\t\t}\n\t\treturn root;\n\t});\n\n\taddGrammarElement(\"primaryExpression\", function (parser, runtime, tokens) {\n\t\tvar leaf = parser.parseElement(\"leaf\", tokens);\n\t\tif (leaf) {\n\t\t\treturn parser.parseElement(\"indirectExpression\", tokens, leaf);\n\t\t}\n\t\tparser.raiseParseError(tokens, \"Unexpected value: \" + tokens.currentToken().value);\n\t});\n\n\t/* ============================================================================================ */\n\t/* END Core hyperscript Grammar Elements                                                        */\n\n\t/* ============================================================================================ */\n\n\t/**\n\t *\n\t * @param {TokensObject} tokens\n\t * @returns string\n\t */\n\tfunction createParserContext(tokens) {\n\t\tvar currentToken = tokens.currentToken();\n\t\tvar source = tokens.source;\n\t\tvar lines = source.split(\"\\n\");\n\t\tvar line = currentToken && currentToken.line ? currentToken.line - 1 : lines.length - 1;\n\t\tvar contextLine = lines[line];\n\t\tvar offset = currentToken && currentToken.line ? currentToken.column : contextLine.length - 1;\n\t\treturn contextLine + \"\\n\" + \" \".repeat(offset) + \"^^\\n\\n\";\n\t}\n\n\t/**\n\t * @param {TokensObject} tokens\n\t * @param {string} [message]\n\t */\n\tfunction raiseParseError(tokens, message) {\n\t\tmessage =\n\t\t\t(message || \"Unexpected Token : \" + tokens.currentToken().value) + \"\\n\\n\" + createParserContext(tokens);\n\t\tvar error = new Error(message);\n\t\terror[\"tokens\"] = tokens;\n\t\tthrow error;\n\t}\n\n\t/**\n\t * @param {TokensObject} tokens\n\t * @returns {GrammarElement}\n\t */\n\tfunction parseHyperScript(tokens) {\n\t\tvar result = parseElement(\"hyperscript\", tokens);\n\t\tif (tokens.hasMore()) raiseParseError(tokens);\n\t\tif (result) return result;\n\t}\n\n\t/**\n\t * @param {GrammarElement} elt\n\t * @param {GrammarElement} parent\n\t */\n\tfunction setParent(elt, parent) {\n\t\tif (typeof elt === 'object') {\n\t\t\telt.parent = parent;\n\t\t\tif (typeof parent === 'object') {\n\t\t\t\tparent.children = (parent.children || new Set());\n\t\t\t\tparent.children.add(elt)\n\t\t\t}\n\t\t\tsetParent(elt.next, parent);\n\t\t}\n\t}\n\n\t/**\n\t * @param {Token} token\n\t * @returns {GrammarDefinition}\n\t */\n\tfunction commandStart(token) {\n\t\treturn COMMANDS[token.value];\n\t}\n\n\t/**\n\t * @param {Token} token\n\t * @returns {GrammarDefinition}\n\t */\n\tfunction featureStart(token) {\n\t\treturn FEATURES[token.value];\n\t}\n\n\t/**\n\t * @param {Token} token\n\t * @returns {boolean}\n\t */\n\tfunction commandBoundary(token) {\n\t\tif (\n\t\t\ttoken.value == \"end\" ||\n\t\t\ttoken.value == \"then\" ||\n\t\t\ttoken.value == \"else\" ||\n\t\t\ttoken.value == \"otherwise\" ||\n\t\t\ttoken.value == \")\" ||\n\t\t\tcommandStart(token) ||\n\t\t\tfeatureStart(token) ||\n\t\t\ttoken.type == \"EOF\"\n\t\t) {\n\t\t\treturn true;\n\t\t}\n\t\treturn false;\n\t}\n\n\t/**\n\t * @param {TokensObject} tokens\n\t * @returns {(string | GrammarElement)[]}\n\t */\n\tfunction parseStringTemplate(tokens) {\n\t\t/** @type {(string | GrammarElement)[]} */\n\t\tvar returnArr = [\"\"];\n\t\tdo {\n\t\t\treturnArr.push(tokens.lastWhitespace());\n\t\t\tif (tokens.currentToken().value === \"$\") {\n\t\t\t\ttokens.consumeToken();\n\t\t\t\tvar startingBrace = tokens.matchOpToken(\"{\");\n\t\t\t\treturnArr.push(requireElement(\"expression\", tokens));\n\t\t\t\tif (startingBrace) {\n\t\t\t\t\ttokens.requireOpToken(\"}\");\n\t\t\t\t}\n\t\t\t\treturnArr.push(\"\");\n\t\t\t} else if (tokens.currentToken().value === \"\\\\\") {\n\t\t\t\ttokens.consumeToken(); // skip next\n\t\t\t\ttokens.consumeToken();\n\t\t\t} else {\n\t\t\t\tvar token = tokens.consumeToken();\n\t\t\t\treturnArr[returnArr.length - 1] += token ? token.value : \"\";\n\t\t\t}\n\t\t} while (tokens.hasMore());\n\t\treturnArr.push(tokens.lastWhitespace());\n\t\treturn returnArr;\n\t}\n\n\tfunction ensureTerminated(commandList) {\n\t\tvar implicitReturn = {\n\t\t\ttype: \"implicitReturn\",\n\t\t\top: function (context) {\n\t\t\t\tcontext.meta.returned = true;\n\t\t\t\tif (context.meta.resolve) {\n\t\t\t\t\tcontext.meta.resolve();\n\t\t\t\t}\n\t\t\t\treturn _runtime.HALT;\n\t\t\t},\n\t\t\texecute: function (ctx) {\n\t\t\t\t// do nothing\n\t\t\t},\n\t\t};\n\n\t\tvar end = commandList;\n\t\twhile (end.next) {\n\t\t\tend = end.next;\n\t\t}\n\t\tend.next = implicitReturn;\n\t}\n\n\n\t// parser API\n\treturn {\n\t\tsetParent,\n\t\trequireElement,\n\t\tparseElement,\n\t\tfeatureStart,\n\t\tcommandStart,\n\t\tcommandBoundary,\n\t\tparseAnyOf,\n\t\tparseHyperScript,\n\t\traiseParseError,\n\t\taddGrammarElement,\n\t\taddCommand,\n\t\taddFeature,\n\t\taddLeafExpression,\n\t\taddIndirectExpression,\n\t\tparseStringTemplate,\n\t\tensureTerminated,\n\t};\n})();\n\n//====================================================================\n// Runtime\n//====================================================================\n\nvar CONVERSIONS = {\n\tdynamicResolvers: /** @type DynamicConversionFunction[] */ [\n\t\tfunction(str, value){\n\t\t\tif (str === \"Fixed\") {\n\t\t\t\treturn Number(value).toFixed();\n\t\t\t} else if (str.indexOf(\"Fixed:\") === 0) {\n\t\t\t\tlet num = str.split(\":\")[1];\n\t\t\t\treturn Number(value).toFixed(parseInt(num));\n\t\t\t}\n\t\t}\n\t],\n\tString: function (val) {\n\t\tif (val.toString) {\n\t\t\treturn val.toString();\n\t\t} else {\n\t\t\treturn \"\" + val;\n\t\t}\n\t},\n\tInt: function (val) {\n\t\treturn parseInt(val);\n\t},\n\tFloat: function (val) {\n\t\treturn parseFloat(val);\n\t},\n\tNumber: function (val) {\n\t\treturn Number(val);\n\t},\n\tDate: function (val) {\n\t\treturn new Date(val);\n\t},\n\tArray: function (val) {\n\t\treturn Array.from(val);\n\t},\n\tJSON: function (val) {\n\t\treturn JSON.stringify(val);\n\t},\n\tObject: function (val) {\n\t\tif (val instanceof String) {\n\t\t\tval = val.toString();\n\t\t}\n\t\tif (typeof val === \"string\") {\n\t\t\treturn JSON.parse(val);\n\t\t} else {\n\t\t\treturn mergeObjects({}, val);\n\t\t}\n\t},\n};\n\n/********************************************\n * RUNTIME OBJECT\n ********************************************/\n\n/** @type {RuntimeObject} */\nvar _runtime = (function () {\n\t/**\n\t * @param {HTMLElement} elt\n\t * @param {string} selector\n\t * @returns boolean\n\t */\n\tfunction matchesSelector(elt, selector) {\n\t\t// noinspection JSUnresolvedVariable\n\t\tvar matchesFunction =\n\t\t\t// @ts-ignore\n\t\t\telt.matches || elt.matchesSelector || elt.msMatchesSelector || elt.mozMatchesSelector || elt.webkitMatchesSelector || elt.oMatchesSelector;\n\t\treturn matchesFunction && matchesFunction.call(elt, selector);\n\t}\n\n\t/**\n\t * @param {string} eventName\n\t * @param {Object} [detail]\n\t * @returns {Event}\n\t */\n\tfunction makeEvent(eventName, detail) {\n\t\tvar evt;\n\t\tif (globalScope.Event && typeof globalScope.Event === \"function\") {\n\t\t\tevt = new Event(eventName, {\n\t\t\t\tbubbles: true,\n\t\t\t\tcancelable: true,\n\t\t\t});\n\t\t\tevt['detail'] = detail;\n\t\t} else {\n\t\t\tevt = document.createEvent(\"CustomEvent\");\n\t\t\tevt.initCustomEvent(eventName, true, true, detail);\n\t\t}\n\t\treturn evt;\n\t}\n\n\t/**\n\t * @param {Element} elt\n\t * @param {string} eventName\n\t * @param {Object} [detail]\n\t * @returns {boolean}\n\t */\n\tfunction triggerEvent(elt, eventName, detail) {\n\t\tdetail = detail || {};\n\t\tdetail[\"sentBy\"] = elt;\n\t\tvar event = makeEvent(eventName, detail);\n\t\tvar eventResult = elt.dispatchEvent(event);\n\t\treturn eventResult;\n\t}\n\n\t/**\n\t * isArrayLike returns `true` if the provided value is an array or\n\t * a NodeList (which is close enough to being an array for our purposes).\n\t *\n\t * @param {any} value\n\t * @returns {value is Array | NodeList}\n\t */\n\tfunction isArrayLike(value) {\n\t\treturn Array.isArray(value) ||\n\t\t\t(typeof NodeList !== 'undefined' && (value instanceof NodeList || value instanceof HTMLCollection));\n\t}\n\n\t/**\n\t * isIterable returns `true` if the provided value supports the\n\t * iterator protocol.\n\t *\n\t * @param {any} value\n\t * @returns {value is Iterable}\n\t */\n\tfunction isIterable(value) {\n\t\treturn typeof value === 'object'\n\t\t\t&& Symbol.iterator in value\n\t\t\t&& typeof value[Symbol.iterator] === 'function';\n\t}\n\n\t/**\n\t * shouldAutoIterate returns `true` if the provided value\n\t * should be implicitly iterated over when accessing properties,\n\t * and as the target of some commands.\n\t *\n\t * Currently, this is when the value is an {ElementCollection}\n\t * or {isArrayLike} returns true.\n\t *\n\t * @param {any} value\n\t * @returns {value is any[] | NodeList | ElementCollection}\n\t */\n\tfunction shouldAutoIterate(value) {\n\t\treturn  value instanceof ElementCollection ||\n\t\t\t   isArrayLike(value);\n\t}\n\n\t/**\n\t * forEach executes the provided `func` on every item in the `value` array.\n\t * if `value` is a single item (and not an array) then `func` is simply called\n\t * once.  If `value` is null, then no further actions are taken.\n\t *\n\t * @template T\n\t * @param {T | Iterable<T>} value\n\t * @param {(item: T) => void} func\n\t */\n\tfunction forEach(value, func) {\n\t\tif (value == null) {\n\t\t\t// do nothing\n\t\t} else if (isIterable(value)) {\n\t\t\tfor (const nth of value) {\n\t\t\t\tfunc(nth);\n\t\t\t}\n\t\t} else if (isArrayLike(value)) {\n\t\t\tfor (var i = 0; i < value.length; i++) {\n\t\t\t\tfunc(value[i]);\n\t\t\t}\n\t\t} else {\n\t\t\tfunc(value);\n\t\t}\n\t}\n\n\t/**\n\t * implicitLoop executes the provided `func` on:\n\t * - every item of {value}, if {value} should be auto-iterated\n\t *   (see {shouldAutoIterate})\n\t * - {value} otherwise\n\t *\n\t * @template T\n\t * @param {NodeList | T | T[]} value\n\t * @param {(item:Node | T) => void} func\n\t */\n\tfunction implicitLoop(value, func) {\n\t\tif (shouldAutoIterate(value)) {\n\t\t\tfor (const x of value) func(x);\n\t\t} else {\n\t\t\tfunc(value);\n\t\t}\n\t}\n\n\tvar ARRAY_SENTINEL = { array_sentinel: true };\n\n\tfunction linearize(args) {\n\t\tvar arr = [];\n\t\tfor (var i = 0; i < args.length; i++) {\n\t\t\tvar arg = args[i];\n\t\t\tif (Array.isArray(arg)) {\n\t\t\t\tarr.push(ARRAY_SENTINEL);\n\t\t\t\tfor (var j = 0; j < arg.length; j++) {\n\t\t\t\t\tarr.push(arg[j]);\n\t\t\t\t}\n\t\t\t\tarr.push(ARRAY_SENTINEL);\n\t\t\t} else {\n\t\t\t\tarr.push(arg);\n\t\t\t}\n\t\t}\n\t\treturn arr;\n\t}\n\n\tfunction delinearize(values) {\n\t\tvar arr = [];\n\t\tfor (var i = 0; i < values.length; i++) {\n\t\t\tvar value = values[i];\n\t\t\tif (value === ARRAY_SENTINEL) {\n\t\t\t\tvalue = values[++i];\n\t\t\t\tvar valueArray = [];\n\t\t\t\tarr.push(valueArray);\n\t\t\t\twhile (value !== ARRAY_SENTINEL) {\n\t\t\t\t\tvalueArray.push(value);\n\t\t\t\t\tvalue = values[++i];\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tarr.push(value);\n\t\t\t}\n\t\t}\n\t\treturn arr;\n\t}\n\n\tfunction unwrapAsyncs(values) {\n\t\tfor (var i = 0; i < values.length; i++) {\n\t\t\tvar value = values[i];\n\t\t\tif (value.asyncWrapper) {\n\t\t\t\tvalues[i] = value.value;\n\t\t\t}\n\t\t\tif (Array.isArray(value)) {\n\t\t\t\tfor (var j = 0; j < value.length; j++) {\n\t\t\t\t\tvar valueElement = value[j];\n\t\t\t\t\tif (valueElement.asyncWrapper) {\n\t\t\t\t\t\tvalue[j] = valueElement.value;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tvar HALT = {};\n\n\t/**\n\t * @param {GrammarElement} command\n\t * @param {Context} ctx\n\t */\n\tfunction unifiedExec(command, ctx) {\n\t\twhile (true) {\n\t\t\ttry {\n\t\t\t\tvar next = unifiedEval(command, ctx);\n\t\t\t} catch (e) {\n\t\t\t\tif (ctx.meta.handlingFinally) {\n\t\t\t\t\tconsole.error(\" Exception in finally block: \", e);\n\t\t\t\t\tnext = HALT;\n\t\t\t\t} else {\n\t\t\t\t\t_runtime.registerHyperTrace(ctx, e);\n\t\t\t\t\tif (ctx.meta.errorHandler && !ctx.meta.handlingError) {\n\t\t\t\t\t\tctx.meta.handlingError = true;\n\t\t\t\t\t\tctx[ctx.meta.errorSymbol] = e;\n\t\t\t\t\t\tcommand = ctx.meta.errorHandler;\n\t\t\t\t\t\tcontinue;\n\t\t\t\t\t} else  {\n\t\t\t\t\t\tctx.meta.currentException = e;\n\t\t\t\t\t\tnext = HALT;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (next == null) {\n\t\t\t\tconsole.error(command, \" did not return a next element to execute! context: \", ctx);\n\t\t\t\treturn;\n\t\t\t} else if (next.then) {\n\t\t\t\tnext.then(function (resolvedNext) {\n\t\t\t\t\tunifiedExec(resolvedNext, ctx);\n\t\t\t\t}).catch(function (reason) {\n\t\t\t\t\tunifiedExec({ // Anonymous command to simply throw the exception\n\t\t\t\t\t\top: function(){\n\t\t\t\t\t\t\tthrow reason;\n\t\t\t\t\t\t}\n\t\t\t\t\t}, ctx);\n\t\t\t\t});\n\t\t\t\treturn;\n\t\t\t} else if (next === HALT) {\n\t\t\t\tif (ctx.meta.finallyHandler && !ctx.meta.handlingFinally) {\n\t\t\t\t\tctx.meta.handlingFinally = true;\n\t\t\t\t\tcommand = ctx.meta.finallyHandler;\n\t\t\t\t} else {\n\t\t\t\t\tif (ctx.meta.onHalt) {\n\t\t\t\t\t\tctx.meta.onHalt();\n\t\t\t\t\t}\n\t\t\t\t\tif (ctx.meta.currentException) {\n\t\t\t\t\t\tif (ctx.meta.reject) {\n\t\t\t\t\t\t\tctx.meta.reject(ctx.meta.currentException);\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tthrow ctx.meta.currentException;\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tcommand = next; // move to the next command\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t* @param {*} parseElement\n\t* @param {Context} ctx\n\t* @returns {*}\n\t*/\n\tfunction unifiedEval(parseElement, ctx) {\n\t\t/** @type any[] */\n\t\tvar args = [ctx];\n\t\tvar async = false;\n\t\tvar wrappedAsyncs = false;\n\n\t\tif (parseElement.args) {\n\t\t\tfor (var i = 0; i < parseElement.args.length; i++) {\n\t\t\t\tvar argument = parseElement.args[i];\n\t\t\t\tif (argument == null) {\n\t\t\t\t\targs.push(null);\n\t\t\t\t} else if (Array.isArray(argument)) {\n\t\t\t\t\tvar arr = [];\n\t\t\t\t\tfor (var j = 0; j < argument.length; j++) {\n\t\t\t\t\t\tvar element = argument[j];\n\t\t\t\t\t\tvar value = element ? element.evaluate(ctx) : null; // OK\n\t\t\t\t\t\tif (value) {\n\t\t\t\t\t\t\tif (value.then) {\n\t\t\t\t\t\t\t\tasync = true;\n\t\t\t\t\t\t\t} else if (value.asyncWrapper) {\n\t\t\t\t\t\t\t\twrappedAsyncs = true;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t\tarr.push(value);\n\t\t\t\t\t}\n\t\t\t\t\targs.push(arr);\n\t\t\t\t} else if (argument.evaluate) {\n\t\t\t\t\tvar value = argument.evaluate(ctx); // OK\n\t\t\t\t\tif (value) {\n\t\t\t\t\t\tif (value.then) {\n\t\t\t\t\t\t\tasync = true;\n\t\t\t\t\t\t} else if (value.asyncWrapper) {\n\t\t\t\t\t\t\twrappedAsyncs = true;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\targs.push(value);\n\t\t\t\t} else {\n\t\t\t\t\targs.push(argument);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (async) {\n\t\t\treturn new Promise(function (resolve, reject) {\n\t\t\t\tvar linearized = linearize(args);\n\t\t\t\tPromise.all(linearized)\n\t\t\t\t\t.then(function (values) {\n\t\t\t\t\t\tvalues = delinearize(values);\n\t\t\t\t\t\tif (wrappedAsyncs) {\n\t\t\t\t\t\t\tunwrapAsyncs(values);\n\t\t\t\t\t\t}\n\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\tvar apply = parseElement.op.apply(parseElement, values);\n\t\t\t\t\t\t\tresolve(apply);\n\t\t\t\t\t\t} catch (e) {\n\t\t\t\t\t\t\treject(e);\n\t\t\t\t\t\t}\n\t\t\t\t\t})\n\t\t\t\t\t.catch(function (reason) {\n\t\t\t\t\t\treject(reason);\n\t\t\t\t\t});\n\t\t\t});\n\t\t} else {\n\t\t\tif (wrappedAsyncs) {\n\t\t\t\tunwrapAsyncs(args);\n\t\t\t}\n\t\t\treturn parseElement.op.apply(parseElement, args);\n\t\t}\n\t}\n\n\tlet _scriptAttrs = null;\n\n\t/**\n\t* getAttributes returns the attribute name(s) to use when\n\t* locating hyperscript scripts in a DOM element.  If no value\n\t* has been configured, it defaults to _hyperscript.config.attributes\n\t* @returns string[]\n\t*/\n\tfunction getScriptAttributes() {\n\t\tif (_scriptAttrs == null) {\n\t\t\t_scriptAttrs = _hyperscript.config.attributes.replace(/ /g, \"\").split(\",\");\n\t\t}\n\t\treturn _scriptAttrs;\n\t}\n\n\t/**\n\t* @param {Element} elt\n\t* @returns {string | null}\n\t*/\n\tfunction getScript(elt) {\n\t\tfor (var i = 0; i < getScriptAttributes().length; i++) {\n\t\t\tvar scriptAttribute = getScriptAttributes()[i];\n\t\t\tif (elt.hasAttribute && elt.hasAttribute(scriptAttribute)) {\n\t\t\t\treturn elt.getAttribute(scriptAttribute);\n\t\t\t}\n\t\t}\n\t\tif (elt instanceof HTMLScriptElement && elt.type === \"text/hyperscript\") {\n\t\t\treturn elt.innerText;\n\t\t}\n\t\treturn null;\n\t}\n\n\tvar hyperscriptFeaturesMap = new WeakMap\n\n\t/**\n\t* @param {*} elt\n\t* @returns {Object}\n\t*/\n\tfunction getHyperscriptFeatures(elt) {\n\t\tvar hyperscriptFeatures = hyperscriptFeaturesMap.get(elt);\n\t\tif (typeof hyperscriptFeatures === 'undefined') {\n\t\t\thyperscriptFeaturesMap.set(elt, hyperscriptFeatures = {});\n\t\t}\n\t\treturn hyperscriptFeatures;\n\t}\n\n\t/**\n\t* @param {Object} owner\n\t* @param {Context} ctx\n\t*/\n\tfunction addFeatures(owner, ctx) {\n\t\tif (owner) {\n\t\t\tmergeObjects(ctx, getHyperscriptFeatures(owner));\n\t\t\taddFeatures(owner.parentElement, ctx);\n\t\t}\n\t}\n\n\t/**\n\t* @param {*} owner\n\t* @param {*} feature\n\t* @param {*} hyperscriptTarget\n\t* @param {*} event\n\t* @returns {Context}\n\t*/\n\tfunction makeContext(owner, feature, hyperscriptTarget, event) {\n\t\t/** @type {Context} */\n\t\tvar ctx = {\n\t\t\tmeta: {\n\t\t\t\tparser: _parser,\n\t\t\t\tlexer: _lexer,\n\t\t\t\truntime: _runtime,\n\t\t\t\towner: owner,\n\t\t\t\tfeature: feature,\n\t\t\t\titerators: {},\n\t\t\t},\n\t\t\tme: hyperscriptTarget,\n\t\t\tevent: event,\n\t\t\ttarget: event ? event.target : null,\n\t\t\tdetail: event ? event.detail : null,\n\t\t\tbody: \"document\" in globalScope ? document.body : null,\n\t\t};\n\t\tctx.meta.ctx = ctx;\n\t\taddFeatures(owner, ctx);\n\t\treturn ctx;\n\t}\n\n\t/**\n\t* @returns string\n\t*/\n\tfunction getScriptSelector() {\n\t\treturn getScriptAttributes()\n\t\t\t.map(function (attribute) {\n\t\t\t\treturn \"[\" + attribute + \"]\";\n\t\t\t})\n\t\t\t.join(\", \");\n\t}\n\n\t/**\n\t* @param {any} value\n\t* @param {string} type\n\t* @returns {any}\n\t*/\n\tfunction convertValue(value, type) {\n\t\tvar dynamicResolvers = CONVERSIONS.dynamicResolvers;\n\t\tfor (var i = 0; i < dynamicResolvers.length; i++) {\n\t\t\tvar dynamicResolver = dynamicResolvers[i];\n\t\t\tvar converted = dynamicResolver(type, value);\n\t\t\tif (converted !== undefined) {\n\t\t\t\treturn converted;\n\t\t\t}\n\t\t}\n\n\t\tif (value == null) {\n\t\t\treturn null;\n\t\t}\n\t\tvar converter = CONVERSIONS[type];\n\t\tif (converter) {\n\t\t\treturn converter(value);\n\t\t}\n\n\t\tthrow \"Unknown conversion : \" + type;\n\t}\n\n\t// TODO: There do not seem to be any references to this function.\n\t// Is it still in use, or can it be removed?\n\tfunction isType(o, type) {\n\t\treturn Object.prototype.toString.call(o) === \"[object \" + type + \"]\";\n\t}\n\n\t/**\n\t* @param {string} src\n\t* @returns {GrammarElement}\n\t*/\n\tfunction parse(src) {\n\t\tvar tokens = _lexer.tokenize(src);\n\t\tif (_parser.commandStart(tokens.currentToken())) {\n\t\t\tvar commandList = _parser.requireElement(\"commandList\", tokens);\n\t\t\tvar last = commandList;\n\t\t\twhile (last.next) {\n\t\t\t\tlast = last.next;\n\t\t\t}\n\t\t\tlast.next = {\n\t\t\t\top: function () {\n\t\t\t\t\treturn HALT;\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn commandList;\n\t\t} else if (_parser.featureStart(tokens.currentToken())) {\n\t\t\tvar hyperscript = _parser.requireElement(\"hyperscript\", tokens);\n\t\t\treturn hyperscript;\n\t\t} else {\n\t\t\tvar expression = _parser.requireElement(\"expression\", tokens);\n\t\t\treturn expression;\n\t\t}\n\t}\n\n\tfunction evaluateNoPromise(elt, ctx) {\n\t\tlet result = elt.evaluate(ctx);\n\t\tif (result.next) {\n\t\t\tthrow new Error(elt.sourceFor() + \" returned a Promise in a context that they are not allowed.\");\n\t\t}\n\t\treturn result;\n\t}\n\n\t/**\n\t* @param {string} src\n\t* @param {Context} [ctx]\n\t* @param {Object} [args]\n\t* @returns {any}\n\t*/\n\tfunction evaluate(src, ctx, args) {\n\t\tclass HyperscriptModule extends EventTarget {\n\t\t\tconstructor(mod) {\n\t\t\t\tsuper();\n\t\t\t\tthis.module = mod;\n\t\t\t}\n\t\t\ttoString() {\n\t\t\t\treturn this.module.id;\n\t\t\t}\n\t\t}\n\n\t\tvar body = 'document' in globalScope\n\t\t\t? globalScope.document.body\n\t\t\t: new HyperscriptModule(args && args.module);\n\t\tctx = mergeObjects(makeContext(body, null, body, null), ctx || {});\n\t\tvar element = parse(src);\n\t\tif (element.execute) {\n\t\t\telement.execute(ctx);\n\t\t\treturn ctx.result;\n\t\t} else if (element.apply) {\n\t\t\telement.apply(body, body, args);\n\t\t\treturn getHyperscriptFeatures(body);\n\t\t} else {\n\t\t\treturn element.evaluate(ctx);\n\t\t}\n\n\t\tfunction makeModule() {\n\t\t\treturn {}\n\t\t}\n\t}\n\n\t/**\n\t* @param {HTMLElement} elt\n\t*/\n\tfunction processNode(elt) {\n\t\tvar selector = _runtime.getScriptSelector();\n\t\tif (matchesSelector(elt, selector)) {\n\t\t\tinitElement(elt, elt);\n\t\t}\n\t\tif (elt instanceof HTMLScriptElement && elt.type === \"text/hyperscript\") {\n\t\t\tinitElement(elt, document.body);\n\t\t}\n\t\tif (elt.querySelectorAll) {\n\t\t\tforEach(elt.querySelectorAll(selector + \", [type='text/hyperscript']\"), function (elt) {\n\t\t\t\tinitElement(elt, elt instanceof HTMLScriptElement && elt.type === \"text/hyperscript\" ? document.body : elt);\n\t\t\t});\n\t\t}\n\t}\n\n\t/**\n\t* @param {Element} elt\n\t* @param {Element} [target]\n\t*/\n\tfunction initElement(elt, target) {\n\t\tif (elt.closest && elt.closest(_hyperscript.config.disableSelector)) {\n\t\t\treturn;\n\t\t}\n\t\tvar internalData = getInternalData(elt);\n\t\tif (!internalData.initialized) {\n\t\t\tvar src = getScript(elt);\n\t\t\tif (src) {\n\t\t\t\ttry {\n\t\t\t\t\tinternalData.initialized = true;\n\t\t\t\t\tinternalData.script = src;\n\t\t\t\t\tvar tokens = _lexer.tokenize(src);\n\t\t\t\t\tvar hyperScript = _parser.parseHyperScript(tokens);\n\t\t\t\t\tif (!hyperScript) return;\n\t\t\t\t\thyperScript.apply(target || elt, elt);\n\t\t\t\t\tsetTimeout(function () {\n\t\t\t\t\t\ttriggerEvent(target || elt, \"load\", {\n\t\t\t\t\t\t\thyperscript: true,\n\t\t\t\t\t\t});\n\t\t\t\t\t}, 1);\n\t\t\t\t} catch (e) {\n\t\t\t\t\t_runtime.triggerEvent(elt, \"exception\", {\n\t\t\t\t\t\terror: e,\n\t\t\t\t\t});\n\t\t\t\t\tconsole.error(\n\t\t\t\t\t\t\"hyperscript errors were found on the following element:\",\n\t\t\t\t\t\telt,\n\t\t\t\t\t\t\"\\n\\n\",\n\t\t\t\t\t\te.message,\n\t\t\t\t\t\te.stack\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tvar internalDataMap = new WeakMap\n\n\t/**\n\t* @param {Element} elt\n\t* @returns {Object}\n\t*/\n\tfunction getInternalData(elt) {\n\t\tvar internalData = internalDataMap.get(elt);\n\t\tif (typeof internalData === 'undefined') {\n\t\t\tinternalDataMap.set(elt, internalData = {});\n\t\t}\n\t\treturn internalData;\n\t}\n\n\t/**\n\t* @param {any} value\n\t* @param {string} typeString\n\t* @param {boolean} [nullOk]\n\t* @returns {boolean}\n\t*/\n\tfunction typeCheck(value, typeString, nullOk) {\n\t\tif (value == null && nullOk) {\n\t\t\treturn true;\n\t\t}\n\t\tvar typeName = Object.prototype.toString.call(value).slice(8, -1);\n\t\treturn typeName === typeString;\n\t}\n\n\tfunction getElementScope(context) {\n\t\tvar elt = context.meta && context.meta.owner;\n\t\tif (elt) {\n\t\t\tvar internalData = getInternalData(elt);\n\t\t\tvar scopeName = \"elementScope\";\n\t\t\tif (context.meta.feature && context.meta.feature.behavior) {\n\t\t\t\tscopeName = context.meta.feature.behavior + \"Scope\";\n\t\t\t}\n\t\t\tvar elementScope = getOrInitObject(internalData, scopeName);\n\t\t\treturn elementScope;\n\t\t} else {\n\t\t\treturn {}; // no element, return empty scope\n\t\t}\n\t}\n\n\t/**\n\t* @param {string} str\n\t* @param {Context} context\n\t* @returns {any}\n\t*/\n\tfunction resolveSymbol(str, context, type) {\n\t\tif (str === \"me\" || str === \"my\" || str === \"I\") {\n\t\t\treturn context[\"me\"];\n\t\t}\n\t\tif (str === \"it\" || str === \"its\") {\n\t\t\treturn context[\"result\"];\n\t\t}\n\t\tif (str === \"you\" || str === \"your\" || str === \"yourself\") {\n\t\t\treturn context[\"beingTold\"];\n\t\t} else {\n\t\t\tif (type === \"global\") {\n\t\t\t\treturn globalScope[str];\n\t\t\t} else if (type === \"element\") {\n\t\t\t\tvar elementScope = getElementScope(context);\n\t\t\t\treturn elementScope[str];\n\t\t\t} else if (type === \"local\") {\n\t\t\t\treturn context[str];\n\t\t\t} else {\n\t\t\t\t// meta scope (used for event conditionals)\n\t\t\t\tif (context.meta && context.meta.context) {\n\t\t\t\t\tvar fromMetaContext = context.meta.context[str];\n\t\t\t\t\tif (typeof fromMetaContext !== \"undefined\") {\n\t\t\t\t\t\treturn fromMetaContext;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\t// local scope\n\t\t\t\tvar fromContext = context[str];\n\t\t\t\tif (typeof fromContext !== \"undefined\") {\n\t\t\t\t\treturn fromContext;\n\t\t\t\t} else {\n\t\t\t\t\t// element scope\n\t\t\t\t\tvar elementScope = getElementScope(context);\n\t\t\t\t\tfromContext = elementScope[str];\n\t\t\t\t\tif (typeof fromContext !== \"undefined\") {\n\t\t\t\t\t\treturn fromContext;\n\t\t\t\t\t} else {\n\t\t\t\t\t\t// global scope\n\t\t\t\t\t\treturn globalScope[str];\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tfunction setSymbol(str, context, type, value) {\n\t\tif (type === \"global\") {\n\t\t\tglobalScope[str] = value;\n\t\t} else if (type === \"element\") {\n\t\t\tvar elementScope = getElementScope(context);\n\t\t\telementScope[str] = value;\n\t\t} else if (type === \"local\") {\n\t\t\tcontext[str] = value;\n\t\t} else {\n\t\t\t// local scope\n\t\t\tvar fromContext = context[str];\n\t\t\tif (typeof fromContext !== \"undefined\") {\n\t\t\t\tcontext[str] = value;\n\t\t\t} else {\n\t\t\t\t// element scope\n\t\t\t\tvar elementScope = getElementScope(context);\n\t\t\t\tfromContext = elementScope[str];\n\t\t\t\tif (typeof fromContext !== \"undefined\") {\n\t\t\t\t\telementScope[str] = value;\n\t\t\t\t} else {\n\t\t\t\t\tcontext[str] = value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t* @param {GrammarElement} command\n\t* @param {Context} context\n\t* @returns {undefined | GrammarElement}\n\t*/\n\tfunction findNext(command, context) {\n\t\tif (command) {\n\t\t\tif (command.resolveNext) {\n\t\t\t\treturn command.resolveNext(context);\n\t\t\t} else if (command.next) {\n\t\t\t\treturn command.next;\n\t\t\t} else {\n\t\t\t\treturn findNext(command.parent, context);\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t* @param {Object<string,any>} root\n\t* @param {string} property\n\t* @param {boolean} attribute\n\t* @returns {any}\n\t*/\n\tfunction resolveProperty(root, property, attribute) {\n\t\tif (root != null) {\n\t\t\tvar val = attribute && root.getAttribute ? root.getAttribute(property) : root[property];\n\t\t\tif (typeof val !== \"undefined\") {\n\t\t\t\treturn val;\n\t\t\t}\n\n\t\t\tif (shouldAutoIterate(root)) {\n\t\t\t\t// flat map\n\t\t\t\tvar result = [];\n\t\t\t\tfor (var component of root) {\n\t\t\t\t\tvar componentValue = attribute ? component.getAttribute(property) : component[property];\n\t\t\t\t\tif (componentValue) {\n\t\t\t\t\t\tresult.push(componentValue);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn result;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t* @param {Element} elt\n\t* @param {string[]} nameSpace\n\t* @param {string} name\n\t* @param {any} value\n\t*/\n\tfunction assignToNamespace(elt, nameSpace, name, value) {\n\t\tlet root\n\t\tif (typeof document !== \"undefined\" && elt === document.body) {\n\t\t\troot = globalScope;\n\t\t} else {\n\t\t\troot = getHyperscriptFeatures(elt);\n\t\t}\n\t\twhile (nameSpace.length > 0) {\n\t\t\tvar propertyName = nameSpace.shift();\n\t\t\tvar newRoot = root[propertyName];\n\t\t\tif (newRoot == null) {\n\t\t\t\tnewRoot = {};\n\t\t\t\troot[propertyName] = newRoot;\n\t\t\t}\n\t\t\troot = newRoot;\n\t\t}\n\n\t\troot[name] = value;\n\t}\n\n\tfunction getHyperTrace(ctx, thrown) {\n\t\tvar trace = [];\n\t\tvar root = ctx;\n\t\twhile (root.meta.caller) {\n\t\t\troot = root.meta.caller;\n\t\t}\n\t\tif (root.meta.traceMap) {\n\t\t\treturn root.meta.traceMap.get(thrown, trace);\n\t\t}\n\t}\n\n\tfunction registerHyperTrace(ctx, thrown) {\n\t\tvar trace = [];\n\t\tvar root = null;\n\t\twhile (ctx != null) {\n\t\t\ttrace.push(ctx);\n\t\t\troot = ctx;\n\t\t\tctx = ctx.meta.caller;\n\t\t}\n\t\tif (root.meta.traceMap == null) {\n\t\t\troot.meta.traceMap = new Map(); // TODO - WeakMap?\n\t\t}\n\t\tif (!root.meta.traceMap.get(thrown)) {\n\t\t\tvar traceEntry = {\n\t\t\t\ttrace: trace,\n\t\t\t\tprint: function (logger) {\n\t\t\t\t\tlogger = logger || console.error;\n\t\t\t\t\tlogger(\"hypertrace /// \");\n\t\t\t\t\tvar maxLen = 0;\n\t\t\t\t\tfor (var i = 0; i < trace.length; i++) {\n\t\t\t\t\t\tmaxLen = Math.max(maxLen, trace[i].meta.feature.displayName.length);\n\t\t\t\t\t}\n\t\t\t\t\tfor (var i = 0; i < trace.length; i++) {\n\t\t\t\t\t\tvar traceElt = trace[i];\n\t\t\t\t\t\tlogger(\n\t\t\t\t\t\t\t\"  ->\",\n\t\t\t\t\t\t\ttraceElt.meta.feature.displayName.padEnd(maxLen + 2),\n\t\t\t\t\t\t\t\"-\",\n\t\t\t\t\t\t\ttraceElt.meta.owner\n\t\t\t\t\t\t);\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t};\n\t\t\troot.meta.traceMap.set(thrown, traceEntry);\n\t\t}\n\t}\n\n\t/**\n\t* @param {string} str\n\t* @returns {string}\n\t*/\n\tfunction escapeSelector(str) {\n\t\treturn str.replace(/:/g, function (str) {\n\t\t\treturn \"\\\\\" + str;\n\t\t});\n\t}\n\n\t/**\n\t* @param {any} value\n\t* @param {*} elt\n\t*/\n\tfunction nullCheck(value, elt) {\n\t\tif (value == null) {\n\t\t\tthrow new Error(\"'\" + elt.sourceFor() + \"' is null\");\n\t\t}\n\t}\n\n\t/**\n\t* @param {any} value\n\t* @returns {boolean}\n\t*/\n\tfunction isEmpty(value) {\n\t\treturn value == undefined || value.length === 0;\n\t}\n\n\t/**\n\t* @param {any} value\n\t* @returns {boolean}\n\t*/\n\tfunction doesExist(value) {\n\t\tif(value == null){\n\t\t\treturn false;\n\t\t}\n\t\tif (shouldAutoIterate(value)) {\n\t\t\tfor (const elt of value) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t\treturn false;\n\t}\n\n\t/**\n\t* @param {Node} node\n\t* @returns {Document|ShadowRoot}\n\t*/\n\tfunction getRootNode(node) {\n\t\tif (node && node instanceof Node) {\n\t\t\tvar rv = node.getRootNode();\n\t\t\tif (rv instanceof Document || rv instanceof ShadowRoot) return rv;\n\t\t}\n\t\treturn document;\n\t}\n\n\tfunction getEventQueueFor(elt, onFeature) {\n\t\tlet internalData = getInternalData(elt);\n\t\tvar eventQueuesForElt = internalData.eventQueues;\n\t\tif (eventQueuesForElt == null) {\n\t\t\teventQueuesForElt = new Map();\n\t\t\tinternalData.eventQueues = eventQueuesForElt;\n\t\t}\n\t\tvar eventQueueForFeature = eventQueuesForElt.get(onFeature);\n\t\tif (eventQueueForFeature == null) {\n\t\t\teventQueueForFeature = {queue:[], executing:false};\n\t\t\teventQueuesForElt.set(onFeature, eventQueueForFeature);\n\t\t}\n\t\treturn eventQueueForFeature;\n\t}\n\n\t/** @type string | null */\n\t// @ts-ignore\n\tvar hyperscriptUrl = \"document\" in globalScope ? import.meta.url : null;\n\n\t/** @type {RuntimeObject} */\n\treturn {\n\t\ttypeCheck,\n\t\tforEach,\n\t\timplicitLoop,\n\t\ttriggerEvent,\n\t\tmatchesSelector,\n\t\tgetScript,\n\t\tprocessNode,\n\t\tevaluate,\n\t\tevaluateNoPromise,\n\t\tparse,\n\t\tgetScriptSelector,\n\t\tresolveSymbol,\n\t\tsetSymbol,\n\t\tmakeContext,\n\t\tfindNext,\n\t\tunifiedEval,\n\t\tconvertValue,\n\t\tunifiedExec,\n\t\tresolveProperty,\n\t\tassignToNamespace,\n\t\tregisterHyperTrace,\n\t\tgetHyperTrace,\n\t\tgetInternalData,\n\t\tgetHyperscriptFeatures,\n\t\tescapeSelector,\n\t\tnullCheck,\n\t\tisEmpty,\n\t\tdoesExist,\n\t\tgetRootNode,\n\t\tgetEventQueueFor,\n\t\thyperscriptUrl,\n\t\tHALT,\n\t};\n})();\n\n//====================================================================\n// Grammar\n//====================================================================\n{\n\t_parser.addLeafExpression(\"parenthesized\", function (parser, _runtime, tokens) {\n\t\tif (tokens.matchOpToken(\"(\")) {\n\t\t\tvar follows = tokens.clearFollow();\n\t\t\ttry {\n\t\t\t\tvar expr = parser.requireElement(\"expression\", tokens);\n\t\t\t} finally {\n\t\t\t\ttokens.restoreFollow(follows);\n\t\t\t}\n\t\t\ttokens.requireOpToken(\")\");\n\t\t\treturn expr;\n\t\t}\n\t});\n\n\t_parser.addLeafExpression(\"string\", function (parser, runtime, tokens) {\n\t\tvar stringToken = tokens.matchTokenType(\"STRING\");\n\t\tif (!stringToken) return;\n\t\tvar rawValue = stringToken.value;\n\t\t/** @type {any[]} */\n\t\tvar args;\n\t\tif (stringToken.template) {\n\t\t\tvar innerTokens = _lexer.tokenize(rawValue, true);\n\t\t\targs = parser.parseStringTemplate(innerTokens);\n\t\t} else {\n\t\t\targs = [];\n\t\t}\n\t\treturn {\n\t\t\ttype: \"string\",\n\t\t\ttoken: stringToken,\n\t\t\targs: args,\n\t\t\top: function (context) {\n\t\t\t\tvar returnStr = \"\";\n\t\t\t\tfor (var i = 1; i < arguments.length; i++) {\n\t\t\t\t\tvar val = arguments[i];\n\t\t\t\t\tif (val !== undefined) {\n\t\t\t\t\t\treturnStr += val;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn returnStr;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\tif (args.length === 0) {\n\t\t\t\t\treturn rawValue;\n\t\t\t\t} else {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t}\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addGrammarElement(\"nakedString\", function (parser, runtime, tokens) {\n\t\tif (tokens.hasMore()) {\n\t\t\tvar tokenArr = tokens.consumeUntilWhitespace();\n\t\t\ttokens.matchTokenType(\"WHITESPACE\");\n\t\t\treturn {\n\t\t\t\ttype: \"nakedString\",\n\t\t\t\ttokens: tokenArr,\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn tokenArr\n\t\t\t\t\t\t.map(function (t) {\n\t\t\t\t\t\t\treturn t.value;\n\t\t\t\t\t\t})\n\t\t\t\t\t\t.join(\"\");\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n\n\t_parser.addLeafExpression(\"number\", function (parser, runtime, tokens) {\n\t\tvar number = tokens.matchTokenType(\"NUMBER\");\n\t\tif (!number) return;\n\t\tvar numberToken = number;\n\t\tvar value = parseFloat(number.value);\n\t\treturn {\n\t\t\ttype: \"number\",\n\t\t\tvalue: value,\n\t\t\tnumberToken: numberToken,\n\t\t\tevaluate: function () {\n\t\t\t\treturn value;\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addLeafExpression(\"idRef\", function (parser, runtime, tokens) {\n\t\tvar elementId = tokens.matchTokenType(\"ID_REF\");\n\t\tif (!elementId) return;\n\t\t// TODO - unify these two expression types\n\t\tif (elementId.template) {\n\t\t\tvar templateValue = elementId.value.substr(2, elementId.value.length - 2);\n\t\t\tvar innerTokens = _lexer.tokenize(templateValue);\n\t\t\tvar innerExpression = parser.requireElement(\"expression\", innerTokens);\n\t\t\treturn {\n\t\t\t\ttype: \"idRefTemplate\",\n\t\t\t\targs: [innerExpression],\n\t\t\t\top: function (context, arg) {\n\t\t\t\t\treturn runtime.getRootNode(context.me).getElementById(arg);\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t} else {\n\t\t\tconst value = elementId.value.substr(1);\n\t\t\treturn {\n\t\t\t\ttype: \"idRef\",\n\t\t\t\tcss: elementId.value,\n\t\t\t\tvalue: value,\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn (\n\t\t\t\t\t\truntime.getRootNode(context.me).getElementById(value)\n\t\t\t\t\t);\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n\n\t_parser.addLeafExpression(\"classRef\", function (parser, runtime, tokens) {\n\t\tvar classRef = tokens.matchTokenType(\"CLASS_REF\");\n\n\t\tif (!classRef) return;\n\n\t\t// TODO - unify these two expression types\n\t\tif (classRef.template) {\n\t\t\tvar templateValue = classRef.value.substr(2, classRef.value.length - 2);\n\t\t\tvar innerTokens = _lexer.tokenize(templateValue);\n\t\t\tvar innerExpression = parser.requireElement(\"expression\", innerTokens);\n\t\t\treturn {\n\t\t\t\ttype: \"classRefTemplate\",\n\t\t\t\targs: [innerExpression],\n\t\t\t\top: function (context, arg) {\n\t\t\t\t\treturn new ElementCollection(\".\" + arg, context.me, true)\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t} else {\n\t\t\tconst css = classRef.value;\n\t\t\treturn {\n\t\t\t\ttype: \"classRef\",\n\t\t\t\tcss: css,\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn new ElementCollection(css, context.me, true)\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n\n\tclass TemplatedQueryElementCollection extends ElementCollection {\n\t\tconstructor(css, relativeToElement, templateParts) {\n\t\t\tsuper(css, relativeToElement);\n\t\t\tthis.templateParts = templateParts;\n\t\t\tthis.elements = templateParts.filter(elt => elt instanceof Element);\n\t\t}\n\n\t\tget css() {\n\t\t\tlet rv = \"\", i = 0\n\t\t\tfor (const val of this.templateParts) {\n\t\t\t\tif (val instanceof Element) {\n\t\t\t\t\trv += \"[data-hs-query-id='\" + i++ + \"']\";\n\t\t\t\t} else rv += val;\n\t\t\t}\n\t\t\treturn rv;\n\t\t}\n\n\t\t[Symbol.iterator]() {\n\t\t\tthis.elements.forEach((el, i) => el.dataset.hsQueryId = i);\n\t\t\tconst rv = super[Symbol.iterator]();\n\t\t\tthis.elements.forEach(el => el.removeAttribute('data-hs-query-id'));\n\t\t\treturn rv;\n\t\t}\n\t}\n\n\t_parser.addLeafExpression(\"queryRef\", function (parser, runtime, tokens) {\n\t\tvar queryStart = tokens.matchOpToken(\"<\");\n\t\tif (!queryStart) return;\n\t\tvar queryTokens = tokens.consumeUntil(\"/\");\n\t\ttokens.requireOpToken(\"/\");\n\t\ttokens.requireOpToken(\">\");\n\t\tvar queryValue = queryTokens\n\t\t\t.map(function (t) {\n\t\t\t\tif (t.type === \"STRING\") {\n\t\t\t\t\treturn '\"' + t.value + '\"';\n\t\t\t\t} else {\n\t\t\t\t\treturn t.value;\n\t\t\t\t}\n\t\t\t})\n\t\t\t.join(\"\");\n\n\t\tif (queryValue.indexOf(\"$\") >= 0) {\n\t\t\tvar template = true;\n\t\t\tvar innerTokens = _lexer.tokenize(queryValue, true);\n\t\t\tvar args = parser.parseStringTemplate(innerTokens);\n\t\t}\n\n\t\treturn {\n\t\t\ttype: \"queryRef\",\n\t\t\tcss: queryValue,\n\t\t\targs: args,\n\t\t\top: function (context, ...args) {\n\t\t\t\tif (template) {\n\t\t\t\t\treturn new TemplatedQueryElementCollection(queryValue, context.me, args)\n\t\t\t\t} else {\n\t\t\t\t\treturn new ElementCollection(queryValue, context.me)\n\t\t\t\t}\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addLeafExpression(\"attributeRef\", function (parser, runtime, tokens) {\n\t\tvar attributeRef = tokens.matchTokenType(\"ATTRIBUTE_REF\");\n\t\tif (!attributeRef) return;\n\t\tvar outerVal = attributeRef.value;\n\t\tif (outerVal.indexOf(\"[\") === 0) {\n\t\t\tvar innerValue = outerVal.substring(2, outerVal.length - 1);\n\t\t} else {\n\t\t\tvar innerValue = outerVal.substring(1);\n\t\t}\n\t\tvar css = \"[\" + innerValue + \"]\";\n\t\tvar split = innerValue.split(\"=\");\n\t\tvar name = split[0];\n\t\tvar value = split[1];\n\t\tif (value) {\n\t\t\t// strip quotes\n\t\t\tif (value.indexOf('\"') === 0) {\n\t\t\t\tvalue = value.substring(1, value.length - 1);\n\t\t\t}\n\t\t}\n\t\treturn {\n\t\t\ttype: \"attributeRef\",\n\t\t\tname: name,\n\t\t\tcss: css,\n\t\t\tvalue: value,\n\t\t\top: function (context) {\n\t\t\t\tvar target = context.beingTold || context.me;\n\t\t\t\tif (target) {\n\t\t\t\t\treturn target.getAttribute(name);\n\t\t\t\t}\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addGrammarElement(\"objectKey\", function (parser, runtime, tokens) {\n\t\tvar token;\n\t\tif ((token = tokens.matchTokenType(\"STRING\"))) {\n\t\t\treturn {\n\t\t\t\ttype: \"objectKey\",\n\t\t\t\tkey: token.value,\n\t\t\t\tevaluate: function () {\n\t\t\t\t\treturn token.value;\n\t\t\t\t},\n\t\t\t};\n\t\t} else if (tokens.matchOpToken(\"[\")) {\n\t\t\tvar expr = parser.parseElement(\"expression\", tokens);\n\t\t\ttokens.requireOpToken(\"]\");\n\t\t\treturn {\n\t\t\t\ttype: \"objectKey\",\n\t\t\t\texpr: expr,\n\t\t\t\targs: [expr],\n\t\t\t\top: function (ctx, expr) {\n\t\t\t\t\treturn expr;\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t} else {\n\t\t\tvar key = \"\";\n\t\t\tdo {\n\t\t\t\ttoken = tokens.matchTokenType(\"IDENTIFIER\") || tokens.matchOpToken(\"-\");\n\t\t\t\tif (token) key += token.value;\n\t\t\t} while (token);\n\t\t\treturn {\n\t\t\t\ttype: \"objectKey\",\n\t\t\t\tkey: key,\n\t\t\t\tevaluate: function () {\n\t\t\t\t\treturn key;\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n\n\t_parser.addLeafExpression(\"objectLiteral\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchOpToken(\"{\")) return;\n\t\tvar keyExpressions = [];\n\t\tvar valueExpressions = [];\n\t\tif (!tokens.matchOpToken(\"}\")) {\n\t\t\tdo {\n\t\t\t\tvar name = parser.requireElement(\"objectKey\", tokens);\n\t\t\t\ttokens.requireOpToken(\":\");\n\t\t\t\tvar value = parser.requireElement(\"expression\", tokens);\n\t\t\t\tvalueExpressions.push(value);\n\t\t\t\tkeyExpressions.push(name);\n\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t\ttokens.requireOpToken(\"}\");\n\t\t}\n\t\treturn {\n\t\t\ttype: \"objectLiteral\",\n\t\t\targs: [keyExpressions, valueExpressions],\n\t\t\top: function (context, keys, values) {\n\t\t\t\tvar returnVal = {};\n\t\t\t\tfor (var i = 0; i < keys.length; i++) {\n\t\t\t\t\treturnVal[keys[i]] = values[i];\n\t\t\t\t}\n\t\t\t\treturn returnVal;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addGrammarElement(\"nakedNamedArgumentList\", function (parser, runtime, tokens) {\n\t\tvar fields = [];\n\t\tvar valueExpressions = [];\n\t\tif (tokens.currentToken().type === \"IDENTIFIER\") {\n\t\t\tdo {\n\t\t\t\tvar name = tokens.requireTokenType(\"IDENTIFIER\");\n\t\t\t\ttokens.requireOpToken(\":\");\n\t\t\t\tvar value = parser.requireElement(\"expression\", tokens);\n\t\t\t\tvalueExpressions.push(value);\n\t\t\t\tfields.push({ name: name, value: value });\n\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t}\n\t\treturn {\n\t\t\ttype: \"namedArgumentList\",\n\t\t\tfields: fields,\n\t\t\targs: [valueExpressions],\n\t\t\top: function (context, values) {\n\t\t\t\tvar returnVal = { _namedArgList_: true };\n\t\t\t\tfor (var i = 0; i < values.length; i++) {\n\t\t\t\t\tvar field = fields[i];\n\t\t\t\t\treturnVal[field.name.value] = values[i];\n\t\t\t\t}\n\t\t\t\treturn returnVal;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addGrammarElement(\"namedArgumentList\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchOpToken(\"(\")) return;\n\t\tvar elt = parser.requireElement(\"nakedNamedArgumentList\", tokens);\n\t\ttokens.requireOpToken(\")\");\n\t\treturn elt;\n\t});\n\n\t_parser.addGrammarElement(\"symbol\", function (parser, runtime, tokens) {\n\t\t/** @scope {SymbolScope} */\n\t\tvar scope = \"default\";\n\t\tif (tokens.matchToken(\"global\")) {\n\t\t\tscope = \"global\";\n\t\t} else if (tokens.matchToken(\"element\") || tokens.matchToken(\"module\")) {\n\t\t\tscope = \"element\";\n\t\t\t// optional possessive\n\t\t\tif (tokens.matchOpToken(\"'\")) {\n\t\t\t\ttokens.requireToken(\"s\");\n\t\t\t}\n\t\t} else if (tokens.matchToken(\"local\")) {\n\t\t\tscope = \"local\";\n\t\t}\n\n\t\t// TODO better look ahead here\n\t\tlet eltPrefix = tokens.matchOpToken(\":\");\n\t\tlet identifier = tokens.matchTokenType(\"IDENTIFIER\");\n\t\tif (identifier) {\n\t\t\tvar name = identifier.value;\n\t\t\tif (eltPrefix) {\n\t\t\t\tname = \":\" + name;\n\t\t\t}\n\t\t\tif (scope === \"default\") {\n\t\t\t\tif (name.indexOf(\"$\") === 0) {\n\t\t\t\t\tscope = \"global\";\n\t\t\t\t}\n\t\t\t\tif (name.indexOf(\":\") === 0) {\n\t\t\t\t\tscope = \"element\";\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn {\n\t\t\t\ttype: \"symbol\",\n\t\t\t\ttoken: identifier,\n\t\t\t\tscope: scope,\n\t\t\t\tname: name,\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.resolveSymbol(name, context, scope);\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n\n\t_parser.addGrammarElement(\"implicitMeTarget\", function (parser, runtime, tokens) {\n\t\treturn {\n\t\t\ttype: \"implicitMeTarget\",\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn context.beingTold || context.me;\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addLeafExpression(\"boolean\", function (parser, runtime, tokens) {\n\t\tvar booleanLiteral = tokens.matchToken(\"true\") || tokens.matchToken(\"false\");\n\t\tif (!booleanLiteral) return;\n\t\tconst value = booleanLiteral.value === \"true\";\n\t\treturn {\n\t\t\ttype: \"boolean\",\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn value;\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addLeafExpression(\"null\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"null\")) {\n\t\t\treturn {\n\t\t\t\ttype: \"null\",\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn null;\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n\n\t_parser.addLeafExpression(\"arrayLiteral\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchOpToken(\"[\")) return;\n\t\tvar values = [];\n\t\tif (!tokens.matchOpToken(\"]\")) {\n\t\t\tdo {\n\t\t\t\tvar expr = parser.requireElement(\"expression\", tokens);\n\t\t\t\tvalues.push(expr);\n\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t\ttokens.requireOpToken(\"]\");\n\t\t}\n\t\treturn {\n\t\t\ttype: \"arrayLiteral\",\n\t\t\tvalues: values,\n\t\t\targs: [values],\n\t\t\top: function (context, values) {\n\t\t\t\treturn values;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addLeafExpression(\"blockLiteral\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchOpToken(\"\\\\\")) return;\n\t\tvar args = [];\n\t\tvar arg1 = tokens.matchTokenType(\"IDENTIFIER\");\n\t\tif (arg1) {\n\t\t\targs.push(arg1);\n\t\t\twhile (tokens.matchOpToken(\",\")) {\n\t\t\t\targs.push(tokens.requireTokenType(\"IDENTIFIER\"));\n\t\t\t}\n\t\t}\n\t\t// TODO compound op token\n\t\ttokens.requireOpToken(\"-\");\n\t\ttokens.requireOpToken(\">\");\n\t\tvar expr = parser.requireElement(\"expression\", tokens);\n\t\treturn {\n\t\t\ttype: \"blockLiteral\",\n\t\t\targs: args,\n\t\t\texpr: expr,\n\t\t\tevaluate: function (ctx) {\n\t\t\t\tvar returnFunc = function () {\n\t\t\t\t\t//TODO - push scope\n\t\t\t\t\tfor (var i = 0; i < args.length; i++) {\n\t\t\t\t\t\tctx[args[i].value] = arguments[i];\n\t\t\t\t\t}\n\t\t\t\t\treturn expr.evaluate(ctx); //OK\n\t\t\t\t};\n\t\t\t\treturn returnFunc;\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addGrammarElement(\"timeExpression\", function (parser, runtime, tokens) {\n\t\tvar time = parser.requireElement(\"expression\", tokens);\n\t\tvar factor = 1;\n\t\tif (tokens.matchToken(\"s\") || tokens.matchToken(\"seconds\")) {\n\t\t\tfactor = 1000;\n\t\t} else if (tokens.matchToken(\"ms\") || tokens.matchToken(\"milliseconds\")) {\n\t\t\t// do nothing\n\t\t}\n\t\treturn {\n\t\t\ttype: \"timeExpression\",\n\t\t\ttime: time,\n\t\t\tfactor: factor,\n\t\t\targs: [time],\n\t\t\top: function (_context, val) {\n\t\t\t\treturn val * factor;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addIndirectExpression(\"propertyAccess\", function (parser, runtime, tokens, root) {\n\t\tif (!tokens.matchOpToken(\".\")) return;\n\t\tvar prop = tokens.requireTokenType(\"IDENTIFIER\");\n\t\tvar propertyAccess = {\n\t\t\ttype: \"propertyAccess\",\n\t\t\troot: root,\n\t\t\tprop: prop,\n\t\t\targs: [root],\n\t\t\top: function (_context, rootVal) {\n\t\t\t\tvar value = runtime.resolveProperty(rootVal, prop.value, false);\n\t\t\t\treturn value;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t\treturn parser.parseElement(\"indirectExpression\", tokens, propertyAccess);\n\t});\n\n\t_parser.addIndirectExpression(\"of\", function (parser, runtime, tokens, root) {\n\t\tif (!tokens.matchToken(\"of\")) return;\n\t\tvar newRoot = parser.requireElement(\"expression\", tokens);\n\t\t// find the urroot\n\t\tvar childOfUrRoot = null;\n\t\tvar urRoot = root;\n\t\twhile (urRoot.root) {\n\t\t\tchildOfUrRoot = urRoot;\n\t\t\turRoot = urRoot.root;\n\t\t}\n\t\tif (urRoot.type !== \"symbol\" && urRoot.type !== \"attributeRef\") {\n\t\t\tparser.raiseParseError(tokens, \"Cannot take a property of a non-symbol: \" + urRoot.type);\n\t\t}\n\t\tvar attribute = urRoot.type === \"attributeRef\";\n\t\tvar prop = urRoot.name;\n\t\tvar propertyAccess = {\n\t\t\ttype: \"ofExpression\",\n\t\t\tprop: urRoot.token,\n\t\t\troot: newRoot,\n\t\t\tattribute: attribute,\n\t\t\texpression: root,\n\t\t\targs: [newRoot],\n\t\t\top: function (context, rootVal) {\n\t\t\t\treturn runtime.resolveProperty(rootVal, prop, attribute);\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\n\t\tif (urRoot.type === \"attributeRef\") {\n\t\t\tpropertyAccess.attribute = urRoot;\n\t\t}\n\t\tif (childOfUrRoot) {\n\t\t\tchildOfUrRoot.root = propertyAccess;\n\t\t\tchildOfUrRoot.args = [propertyAccess];\n\t\t} else {\n\t\t\troot = propertyAccess;\n\t\t}\n\n\t\treturn parser.parseElement(\"indirectExpression\", tokens, root);\n\t});\n\n\t_parser.addIndirectExpression(\"possessive\", function (parser, runtime, tokens, root) {\n\t\tif (parser.possessivesDisabled) {\n\t\t\treturn;\n\t\t}\n\t\tvar apostrophe = tokens.matchOpToken(\"'\");\n\t\tif (\n\t\t\tapostrophe ||\n\t\t\t(root.type === \"symbol\" &&\n\t\t\t\t(root.name === \"my\" || root.name === \"its\" || root.name === \"your\") &&\n\t\t\t\ttokens.currentToken().type === \"IDENTIFIER\")\n\t\t) {\n\t\t\tif (apostrophe) {\n\t\t\t\ttokens.requireToken(\"s\");\n\t\t\t}\n\t\t\tvar attribute = parser.parseElement(\"attributeRef\", tokens);\n\t\t\tif (attribute == null) {\n\t\t\t\tvar prop = tokens.requireTokenType(\"IDENTIFIER\");\n\t\t\t}\n\t\t\tvar propertyAccess = {\n\t\t\t\ttype: \"possessive\",\n\t\t\t\troot: root,\n\t\t\t\tattribute: attribute,\n\t\t\t\tprop: prop,\n\t\t\t\targs: [root],\n\t\t\t\top: function (context, rootVal) {\n\t\t\t\t\tif (attribute) {\n\t\t\t\t\t\t// @ts-ignore\n\t\t\t\t\t\tvar value = runtime.resolveProperty(rootVal, attribute.name, true);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tvar value = runtime.resolveProperty(rootVal, prop.value, false);\n\t\t\t\t\t}\n\t\t\t\t\treturn value;\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn parser.parseElement(\"indirectExpression\", tokens, propertyAccess);\n\t\t}\n\t});\n\n\t_parser.addIndirectExpression(\"inExpression\", function (parser, runtime, tokens, root) {\n\t\tif (!tokens.matchToken(\"in\")) return;\n\t\tif ((root.type !== \"idRef\" && root.type === \"queryRef\") || root.type === \"classRef\") {\n\t\t\tvar query = true;\n\t\t}\n\t\tvar target = parser.requireElement(\"expression\", tokens);\n\t\tvar propertyAccess = {\n\t\t\ttype: \"inExpression\",\n\t\t\troot: root,\n\t\t\targs: [query ? null : root, target],\n\t\t\top: function (context, rootVal, target) {\n\t\t\t\tvar returnArr = [];\n\t\t\t\tif (query) {\n\t\t\t\t\truntime.implicitLoop(target, function (targetElt) {\n\t\t\t\t\t\tvar results = targetElt.querySelectorAll(root.css);\n\t\t\t\t\t\tfor (var i = 0; i < results.length; i++) {\n\t\t\t\t\t\t\treturnArr.push(results[i]);\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t} else {\n\t\t\t\t\truntime.implicitLoop(rootVal, function (rootElt) {\n\t\t\t\t\t\truntime.implicitLoop(target, function (targetElt) {\n\t\t\t\t\t\t\tif (rootElt === targetElt) {\n\t\t\t\t\t\t\t\treturnArr.push(rootElt);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t});\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t\tif (returnArr.length > 0) {\n\t\t\t\t\treturn returnArr;\n\t\t\t\t} else {\n\t\t\t\t\treturn null;\n\t\t\t\t}\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t\treturn parser.parseElement(\"indirectExpression\", tokens, propertyAccess);\n\t});\n\n\t_parser.addIndirectExpression(\"asExpression\", function (parser, runtime, tokens, root) {\n\t\tif (!tokens.matchToken(\"as\")) return;\n\t\ttokens.matchToken(\"a\") || tokens.matchToken(\"an\");\n\t\tvar conversion = parser.requireElement(\"dotOrColonPath\", tokens).evaluate(); // OK No promise\n\t\tvar propertyAccess = {\n\t\t\ttype: \"asExpression\",\n\t\t\troot: root,\n\t\t\targs: [root],\n\t\t\top: function (context, rootVal) {\n\t\t\t\treturn runtime.convertValue(rootVal, conversion);\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t\treturn parser.parseElement(\"indirectExpression\", tokens, propertyAccess);\n\t});\n\n\t_parser.addIndirectExpression(\"functionCall\", function (parser, runtime, tokens, root) {\n\t\tif (!tokens.matchOpToken(\"(\")) return;\n\t\tvar args = [];\n\t\tif (!tokens.matchOpToken(\")\")) {\n\t\t\tdo {\n\t\t\t\targs.push(parser.requireElement(\"expression\", tokens));\n\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t\ttokens.requireOpToken(\")\");\n\t\t}\n\n\t\tif (root.root) {\n\t\t\tvar functionCall = {\n\t\t\t\ttype: \"functionCall\",\n\t\t\t\troot: root,\n\t\t\t\targExressions: args,\n\t\t\t\targs: [root.root, args],\n\t\t\t\top: function (context, rootRoot, args) {\n\t\t\t\t\truntime.nullCheck(rootRoot, root.root);\n\t\t\t\t\tvar func = rootRoot[root.prop.value];\n\t\t\t\t\truntime.nullCheck(func, root);\n\t\t\t\t\tif (func.hyperfunc) {\n\t\t\t\t\t\targs.push(context);\n\t\t\t\t\t}\n\t\t\t\t\treturn func.apply(rootRoot, args);\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t} else {\n\t\t\tvar functionCall = {\n\t\t\t\ttype: \"functionCall\",\n\t\t\t\troot: root,\n\t\t\t\targExressions: args,\n\t\t\t\targs: [root, args],\n\t\t\t\top: function (context, func, argVals) {\n\t\t\t\t\truntime.nullCheck(func, root);\n\t\t\t\t\tif (func.hyperfunc) {\n\t\t\t\t\t\targVals.push(context);\n\t\t\t\t\t}\n\t\t\t\t\tvar apply = func.apply(null, argVals);\n\t\t\t\t\treturn apply;\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t\treturn parser.parseElement(\"indirectExpression\", tokens, functionCall);\n\t});\n\n\t_parser.addIndirectExpression(\"attributeRefAccess\", function (parser, runtime, tokens, root) {\n\t\tvar attribute = parser.parseElement(\"attributeRef\", tokens);\n\t\tif (!attribute) return;\n\t\tvar attributeAccess = {\n\t\t\ttype: \"attributeRefAccess\",\n\t\t\troot: root,\n\t\t\tattribute: attribute,\n\t\t\targs: [root],\n\t\t\top: function (_ctx, rootVal) {\n\t\t\t\t// @ts-ignore\n\t\t\t\tvar value = runtime.resolveProperty(rootVal, attribute.name, true);\n\t\t\t\treturn value;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn _runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t\treturn attributeAccess;\n\t});\n\n\t_parser.addIndirectExpression(\"arrayIndex\", function (parser, runtime, tokens, root) {\n\t\tif (!tokens.matchOpToken(\"[\")) return;\n\t\tvar andBefore = false;\n\t\tvar andAfter = false;\n\t\tvar firstIndex = null;\n\t\tvar secondIndex = null;\n\n\t\tif (tokens.matchOpToken(\"..\")) {\n\t\t\tandBefore = true;\n\t\t\tfirstIndex = parser.requireElement(\"expression\", tokens);\n\t\t} else {\n\t\t\tfirstIndex = parser.requireElement(\"expression\", tokens);\n\n\t\t\tif (tokens.matchOpToken(\"..\")) {\n\t\t\t\tandAfter = true;\n\t\t\t\tvar current = tokens.currentToken();\n\t\t\t\tif (current.type !== \"R_BRACKET\") {\n\t\t\t\t\tsecondIndex = parser.parseElement(\"expression\", tokens);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\ttokens.requireOpToken(\"]\");\n\n\t\tvar arrayIndex = {\n\t\t\ttype: \"arrayIndex\",\n\t\t\troot: root,\n\t\t\tfirstIndex: firstIndex,\n\t\t\tsecondIndex: secondIndex,\n\t\t\targs: [root, firstIndex, secondIndex],\n\t\t\top: function (_ctx, root, firstIndex, secondIndex) {\n\t\t\t\tif (andBefore) {\n\t\t\t\t\treturn root.slice(0, firstIndex + 1); // returns all items from beginning to firstIndex (inclusive)\n\t\t\t\t} else if (andAfter) {\n\t\t\t\t\tif (secondIndex != null) {\n\t\t\t\t\t\treturn root.slice(firstIndex, secondIndex + 1); // returns all items from firstIndex to secondIndex (inclusive)\n\t\t\t\t\t} else {\n\t\t\t\t\t\treturn root.slice(firstIndex); // returns from firstIndex to end of array\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\treturn root[firstIndex];\n\t\t\t\t}\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn _runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\n\t\treturn _parser.parseElement(\"indirectExpression\", tokens, arrayIndex);\n\t});\n\n\t_parser.addGrammarElement(\"postfixExpression\", function (parser, runtime, tokens) {\n\t\tvar root = parser.parseElement(\"primaryExpression\", tokens);\n\t\tif (tokens.matchOpToken(\":\")) {\n\t\t\tvar typeName = tokens.requireTokenType(\"IDENTIFIER\");\n\t\t\tvar nullOk = !tokens.matchOpToken(\"!\");\n\t\t\treturn {\n\t\t\t\ttype: \"typeCheck\",\n\t\t\t\ttypeName: typeName,\n\t\t\t\tnullOk: nullOk,\n\t\t\t\targs: [root],\n\t\t\t\top: function (context, val) {\n\t\t\t\t\tvar passed = runtime.typeCheck(val, typeName.value, nullOk);\n\t\t\t\t\tif (passed) {\n\t\t\t\t\t\treturn val;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tthrow new Error(\"Typecheck failed!  Expected: \" + typeName.value);\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t} else {\n\t\t\treturn root;\n\t\t}\n\t});\n\n\t_parser.addGrammarElement(\"logicalNot\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"not\")) return;\n\t\tvar root = parser.requireElement(\"unaryExpression\", tokens);\n\t\treturn {\n\t\t\ttype: \"logicalNot\",\n\t\t\troot: root,\n\t\t\targs: [root],\n\t\t\top: function (context, val) {\n\t\t\t\treturn !val;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addGrammarElement(\"noExpression\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"no\")) return;\n\t\tvar root = parser.requireElement(\"unaryExpression\", tokens);\n\t\treturn {\n\t\t\ttype: \"noExpression\",\n\t\t\troot: root,\n\t\t\targs: [root],\n\t\t\top: function (_context, val) {\n\t\t\t\treturn runtime.isEmpty(val);\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addLeafExpression(\"some\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"some\")) return;\n\t\tvar root = parser.requireElement(\"expression\", tokens);\n\t\treturn {\n\t\t\ttype: \"noExpression\",\n\t\t\troot: root,\n\t\t\targs: [root],\n\t\t\top: function (_context, val) {\n\t\t\t\treturn !runtime.isEmpty(val);\n\t\t\t},\n\t\t\tevaluate(context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addGrammarElement(\"negativeNumber\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchOpToken(\"-\")) return;\n\t\tvar root = parser.requireElement(\"unaryExpression\", tokens);\n\t\treturn {\n\t\t\ttype: \"negativeNumber\",\n\t\t\troot: root,\n\t\t\targs: [root],\n\t\t\top: function (context, value) {\n\t\t\t\treturn -1 * value;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addGrammarElement(\"unaryExpression\", function (parser, runtime, tokens) {\n\t\treturn parser.parseAnyOf(\n\t\t\t[\"logicalNot\", \"relativePositionalExpression\", \"positionalExpression\", \"noExpression\", \"negativeNumber\", \"postfixExpression\"],\n\t\t\ttokens\n\t\t);\n\t});\n\n\tvar scanForwardQuery = function(start, root, match, wrap) {\n\t\tvar results = root.querySelectorAll(match);\n\t\tfor (var i = 0; i < results.length; i++) {\n\t\t\tvar elt = results[i];\n\t\t\tif (elt.compareDocumentPosition(start) === Node.DOCUMENT_POSITION_PRECEDING) {\n\t\t\t\treturn elt;\n\t\t\t}\n\t\t}\n\t\tif (wrap) {\n\t\t\treturn results[0];\n\t\t}\n\t}\n\n\tvar scanBackwardsQuery = function(start, root, match, wrap) {\n\t\tvar results = root.querySelectorAll(match);\n\t\tfor (var i = results.length - 1; i >= 0; i--) {\n\t\t\tvar elt = results[i];\n\t\t\tif (elt.compareDocumentPosition(start) === Node.DOCUMENT_POSITION_FOLLOWING) {\n\t\t\t\treturn elt;\n\t\t\t}\n\t\t}\n\t\tif (wrap) {\n\t\t\treturn results[results.length - 1];\n\t\t}\n\t}\n\n\tvar scanForwardArray = function(start, array, match, wrap) {\n\t\tvar matches = [];\n\t\t_runtime.forEach(array, function(elt){\n\t\t\tif (elt.matches(match) || elt === start) {\n\t\t\t\tmatches.push(elt);\n\t\t\t}\n\t\t})\n\t\tfor (var i = 0; i < matches.length - 1; i++) {\n\t\t\tvar elt = matches[i];\n\t\t\tif (elt === start) {\n\t\t\t\treturn matches[i + 1];\n\t\t\t}\n\t\t}\n\t\tif (wrap) {\n\t\t\tvar first = matches[0];\n\t\t\tif (first && first.matches(match)) {\n\t\t\t\treturn first;\n\t\t\t}\n\t\t}\n\t}\n\n\tvar scanBackwardsArray = function(start, array, match, wrap) {\n\t\treturn scanForwardArray(start, Array.from(array).reverse(), match, wrap);\n\t}\n\n\t_parser.addGrammarElement(\"relativePositionalExpression\", function (parser, runtime, tokens) {\n\t\tvar op = tokens.matchAnyToken(\"next\", \"previous\");\n\t\tif (!op) return;\n\t\tif (op.value === \"next\") {\n\t\t\tvar forwardSearch = true;\n\t\t}\n\n\t\tvar thing = parser.parseElement(\"expression\", tokens);\n\n\t\tif (tokens.matchToken(\"from\")) {\n\t\t\ttokens.pushFollow(\"in\");\n\t\t\ttry {\n\t\t\t\tvar from = parser.requireElement(\"expression\", tokens);\n\t\t\t} finally {\n\t\t\t\ttokens.popFollow();\n\t\t\t}\n\t\t} else {\n\t\t\tvar from = parser.requireElement(\"implicitMeTarget\", tokens);\n\t\t}\n\n\t\tvar inSearch = false;\n\t\tvar withinElt;\n\t\tif (tokens.matchToken(\"in\")) {\n\t\t\tinSearch = true;\n\t\t\tvar inElt = parser.requireElement(\"expression\", tokens);\n\t\t} else if (tokens.matchToken(\"within\")) {\n\t\t\twithinElt = parser.requireElement(\"expression\", tokens);\n\t\t} else {\n\t\t\twithinElt = document.body;\n\t\t}\n\n\t\tvar wrapping = false;\n\t\tif (tokens.matchToken(\"with\")) {\n\t\t\ttokens.requireToken(\"wrapping\")\n\t\t\twrapping = true;\n\t\t}\n\n\t\treturn {\n\t\t\ttype: \"relativePositionalExpression\",\n\t\t\tfrom: from,\n\t\t\tforwardSearch: forwardSearch,\n\t\t\tinSearch: inSearch,\n\t\t\twrapping: wrapping,\n\t\t\tinElt: inElt,\n\t\t\twithinElt: withinElt,\n\t\t\toperator: op.value,\n\t\t\targs: [thing, from, inElt, withinElt],\n\t\t\top: function (context, thing, from, inElt, withinElt) {\n\n\t\t\t\tvar css = thing.css;\n\t\t\t\tif (css == null) {\n\t\t\t\t\tthrow \"Expected a CSS value\";\n\t\t\t\t}\n\n\t\t\t\tif(inSearch) {\n\t\t\t\t\tif (inElt) {\n\t\t\t\t\t\tif (forwardSearch) {\n\t\t\t\t\t\t\treturn scanForwardArray(from, inElt, css, wrapping);\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\treturn scanBackwardsArray(from, inElt, css, wrapping);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tif (withinElt) {\n\t\t\t\t\t\tif (forwardSearch) {\n\t\t\t\t\t\t\treturn scanForwardQuery(from, withinElt, css, wrapping);\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\treturn scanBackwardsQuery(from, withinElt, css, wrapping);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t}\n\n\t});\n\n\t_parser.addGrammarElement(\"positionalExpression\", function (parser, runtime, tokens) {\n\t\tvar op = tokens.matchAnyToken(\"first\", \"last\", \"random\");\n\t\tif (!op) return;\n\t\ttokens.matchAnyToken(\"in\", \"from\", \"of\");\n\t\tvar rhs = parser.requireElement(\"unaryExpression\", tokens);\n\t\tconst operator = op.value;\n\t\treturn {\n\t\t\ttype: \"positionalExpression\",\n\t\t\trhs: rhs,\n\t\t\toperator: op.value,\n\t\t\targs: [rhs],\n\t\t\top: function (context, rhsVal) {\n\t\t\t\tif (rhsVal && !Array.isArray(rhsVal)) {\n\t\t\t\t\tif (rhsVal.children) {\n\t\t\t\t\t\trhsVal = rhsVal.children;\n\t\t\t\t\t} else {\n\t\t\t\t\t\trhsVal = Array.from(rhsVal);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif (rhsVal) {\n\t\t\t\t\tif (operator === \"first\") {\n\t\t\t\t\t\treturn rhsVal[0];\n\t\t\t\t\t} else if (operator === \"last\") {\n\t\t\t\t\t\treturn rhsVal[rhsVal.length - 1];\n\t\t\t\t\t} else if (operator === \"random\") {\n\t\t\t\t\t\treturn rhsVal[Math.floor(Math.random() * rhsVal.length)];\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addGrammarElement(\"mathOperator\", function (parser, runtime, tokens) {\n\t\tvar expr = parser.parseElement(\"unaryExpression\", tokens);\n\t\tvar mathOp,\n\t\t\tinitialMathOp = null;\n\t\tmathOp = tokens.matchAnyOpToken(\"+\", \"-\", \"*\", \"/\", \"%\");\n\t\twhile (mathOp) {\n\t\t\tinitialMathOp = initialMathOp || mathOp;\n\t\t\tvar operator = mathOp.value;\n\t\t\tif (initialMathOp.value !== operator) {\n\t\t\t\tparser.raiseParseError(tokens, \"You must parenthesize math operations with different operators\");\n\t\t\t}\n\t\t\tvar rhs = parser.parseElement(\"unaryExpression\", tokens);\n\t\t\texpr = {\n\t\t\t\ttype: \"mathOperator\",\n\t\t\t\tlhs: expr,\n\t\t\t\trhs: rhs,\n\t\t\t\toperator: operator,\n\t\t\t\targs: [expr, rhs],\n\t\t\t\top: function (context, lhsVal, rhsVal) {\n\t\t\t\t\tif (operator === \"+\") {\n\t\t\t\t\t\treturn lhsVal + rhsVal;\n\t\t\t\t\t} else if (operator === \"-\") {\n\t\t\t\t\t\treturn lhsVal - rhsVal;\n\t\t\t\t\t} else if (operator === \"*\") {\n\t\t\t\t\t\treturn lhsVal * rhsVal;\n\t\t\t\t\t} else if (operator === \"/\") {\n\t\t\t\t\t\treturn lhsVal / rhsVal;\n\t\t\t\t\t} else if (operator === \"%\") {\n\t\t\t\t\t\treturn lhsVal % rhsVal;\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t\tmathOp = tokens.matchAnyOpToken(\"+\", \"-\", \"*\", \"/\", \"%\");\n\t\t}\n\t\treturn expr;\n\t});\n\n\t_parser.addGrammarElement(\"mathExpression\", function (parser, runtime, tokens) {\n\t\treturn parser.parseAnyOf([\"mathOperator\", \"unaryExpression\"], tokens);\n\t});\n\n\tfunction sloppyContains(src, container, value){\n\t\tif (container['contains']) {\n\t\t\treturn container.contains(value);\n\t\t} else if (container['includes']) {\n\t\t\treturn container.includes(value);\n\t\t} else {\n\t\t\tthrow Error(\"The value of \" + src.sourceFor() + \" does not have a contains or includes method on it\");\n\t\t}\n\t}\n\tfunction sloppyMatches(src, target, toMatch){\n\t\tif (target['match']) {\n\t\t\treturn !!target.match(toMatch);\n\t\t} else if (target['matches']) {\n\t\t\treturn target.matches(toMatch);\n\t\t} else {\n\t\t\tthrow Error(\"The value of \" + src.sourceFor() + \" does not have a match or matches method on it\");\n\t\t}\n\t}\n\n\t_parser.addGrammarElement(\"comparisonOperator\", function (parser, runtime, tokens) {\n\t\tvar expr = parser.parseElement(\"mathExpression\", tokens);\n\t\tvar comparisonToken = tokens.matchAnyOpToken(\"<\", \">\", \"<=\", \">=\", \"==\", \"===\", \"!=\", \"!==\");\n\t\tvar operator = comparisonToken ? comparisonToken.value : null;\n\t\tvar hasRightValue = true; // By default, most comparisons require two values, but there are some exceptions.\n\t\tvar typeCheck = false;\n\n\t\tif (operator == null) {\n\t\t\tif (tokens.matchToken(\"is\") || tokens.matchToken(\"am\")) {\n\t\t\t\tif (tokens.matchToken(\"not\")) {\n\t\t\t\t\tif (tokens.matchToken(\"in\")) {\n\t\t\t\t\t\toperator = \"not in\";\n\t\t\t\t\t} else if (tokens.matchToken(\"a\")) {\n\t\t\t\t\t\toperator = \"not a\";\n\t\t\t\t\t\ttypeCheck = true;\n\t\t\t\t\t} else if (tokens.matchToken(\"empty\")) {\n\t\t\t\t\t\toperator = \"not empty\";\n\t\t\t\t\t\thasRightValue = false;\n\t\t\t\t\t} else {\n\t\t\t\t\t\toperator = \"!=\";\n\t\t\t\t\t}\n\t\t\t\t} else if (tokens.matchToken(\"in\")) {\n\t\t\t\t\toperator = \"in\";\n\t\t\t\t} else if (tokens.matchToken(\"a\")) {\n\t\t\t\t\toperator = \"a\";\n\t\t\t\t\ttypeCheck = true;\n\t\t\t\t} else if (tokens.matchToken(\"empty\")) {\n\t\t\t\t\toperator = \"empty\";\n\t\t\t\t\thasRightValue = false;\n\t\t\t\t} else if (tokens.matchToken(\"less\")) {\n\t\t\t\t\ttokens.requireToken(\"than\");\n\t\t\t\t\tif (tokens.matchToken(\"or\")) {\n\t\t\t\t\t\ttokens.requireToken(\"equal\");\n\t\t\t\t\t\ttokens.requireToken(\"to\");\n\t\t\t\t\t\toperator = \"<=\";\n\t\t\t\t\t} else {\n\t\t\t\t\t\toperator = \"<\";\n\t\t\t\t\t}\n\t\t\t\t} else if (tokens.matchToken(\"greater\")) {\n\t\t\t\t\ttokens.requireToken(\"than\");\n\t\t\t\t\tif (tokens.matchToken(\"or\")) {\n\t\t\t\t\t\ttokens.requireToken(\"equal\");\n\t\t\t\t\t\ttokens.requireToken(\"to\");\n\t\t\t\t\t\toperator = \">=\";\n\t\t\t\t\t} else {\n\t\t\t\t\t\toperator = \">\";\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\toperator = \"==\";\n\t\t\t\t}\n\t\t\t} else if (tokens.matchToken(\"exist\") || tokens.matchToken(\"exists\")) {\n\t\t\t\toperator = \"exist\";\n\t\t\t\thasRightValue = false;\n\t\t\t} else if (tokens.matchToken(\"matches\") || tokens.matchToken(\"match\")) {\n\t\t\t\toperator = \"match\";\n\t\t\t} else if (tokens.matchToken(\"contains\") || tokens.matchToken(\"contain\")) {\n\t\t\t\toperator = \"contain\";\n\t\t\t} else if (tokens.matchToken(\"includes\") || tokens.matchToken(\"include\")) {\n\t\t\t\toperator = \"include\";\n\t\t\t} else if (tokens.matchToken(\"do\") || tokens.matchToken(\"does\")) {\n\t\t\t\ttokens.requireToken(\"not\");\n\t\t\t\tif (tokens.matchToken(\"matches\") || tokens.matchToken(\"match\")) {\n\t\t\t\t\toperator = \"not match\";\n\t\t\t\t} else if (tokens.matchToken(\"contains\") || tokens.matchToken(\"contain\")) {\n\t\t\t\t\toperator = \"not contain\";\n\t\t\t\t} else if (tokens.matchToken(\"exist\") || tokens.matchToken(\"exist\")) {\n\t\t\t\t\toperator = \"not exist\";\n\t\t\t\t\thasRightValue = false;\n\t\t\t\t} else if (tokens.matchToken(\"include\")) {\n\t\t\t\t\toperator = \"not include\";\n\t\t\t\t} else {\n\t\t\t\t\tparser.raiseParseError(tokens, \"Expected matches or contains\");\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif (operator) {\n\t\t\t// Do not allow chained comparisons, which is dumb\n\t\t\tif (typeCheck) {\n\t\t\t\tvar typeName = tokens.requireTokenType(\"IDENTIFIER\");\n\t\t\t\tvar nullOk = !tokens.matchOpToken(\"!\");\n\t\t\t} else if (hasRightValue) {\n\t\t\t\tvar rhs = parser.requireElement(\"mathExpression\", tokens);\n\t\t\t\tif (operator === \"match\" || operator === \"not match\") {\n\t\t\t\t\trhs = rhs.css ? rhs.css : rhs;\n\t\t\t\t}\n\t\t\t}\n\t\t\tvar lhs = expr;\n\t\t\texpr = {\n\t\t\t\ttype: \"comparisonOperator\",\n\t\t\t\toperator: operator,\n\t\t\t\ttypeName: typeName,\n\t\t\t\tnullOk: nullOk,\n\t\t\t\tlhs: expr,\n\t\t\t\trhs: rhs,\n\t\t\t\targs: [expr, rhs],\n\t\t\t\top: function (context, lhsVal, rhsVal) {\n\t\t\t\t\tif (operator === \"==\") {\n\t\t\t\t\t\treturn lhsVal == rhsVal;\n\t\t\t\t\t} else if (operator === \"!=\") {\n\t\t\t\t\t\treturn lhsVal != rhsVal;\n\t\t\t\t\t}\n\t\t\t\t\tif (operator === \"match\") {\n\t\t\t\t\t\treturn lhsVal != null && sloppyMatches(lhs, lhsVal, rhsVal);\n\t\t\t\t\t}\n\t\t\t\t\tif (operator === \"not match\") {\n\t\t\t\t\t\treturn lhsVal == null || !sloppyMatches(lhs, lhsVal, rhsVal);\n\t\t\t\t\t}\n\t\t\t\t\tif (operator === \"in\") {\n\t\t\t\t\t\treturn rhsVal != null && sloppyContains(rhs, rhsVal, lhsVal);\n\t\t\t\t\t}\n\t\t\t\t\tif (operator === \"not in\") {\n\t\t\t\t\t\treturn rhsVal == null || !sloppyContains(rhs, rhsVal, lhsVal);\n\t\t\t\t\t}\n\t\t\t\t\tif (operator === \"contain\") {\n\t\t\t\t\t\treturn lhsVal != null && sloppyContains(lhs, lhsVal, rhsVal);\n\t\t\t\t\t}\n\t\t\t\t\tif (operator === \"not contain\") {\n\t\t\t\t\t\treturn lhsVal == null || !sloppyContains(lhs, lhsVal, rhsVal);\n\t\t\t\t\t}\n\t\t\t\t\tif (operator === \"include\") {\n\t\t\t\t\t\treturn lhsVal != null && sloppyContains(lhs, lhsVal, rhsVal);\n\t\t\t\t\t}\n\t\t\t\t\tif (operator === \"not include\") {\n\t\t\t\t\t\treturn lhsVal == null || !sloppyContains(lhs, lhsVal, rhsVal);\n\t\t\t\t\t}\n\t\t\t\t\tif (operator === \"===\") {\n\t\t\t\t\t\treturn lhsVal === rhsVal;\n\t\t\t\t\t} else if (operator === \"!==\") {\n\t\t\t\t\t\treturn lhsVal !== rhsVal;\n\t\t\t\t\t} else if (operator === \"<\") {\n\t\t\t\t\t\treturn lhsVal < rhsVal;\n\t\t\t\t\t} else if (operator === \">\") {\n\t\t\t\t\t\treturn lhsVal > rhsVal;\n\t\t\t\t\t} else if (operator === \"<=\") {\n\t\t\t\t\t\treturn lhsVal <= rhsVal;\n\t\t\t\t\t} else if (operator === \">=\") {\n\t\t\t\t\t\treturn lhsVal >= rhsVal;\n\t\t\t\t\t} else if (operator === \"empty\") {\n\t\t\t\t\t\treturn runtime.isEmpty(lhsVal);\n\t\t\t\t\t} else if (operator === \"not empty\") {\n\t\t\t\t\t\treturn !runtime.isEmpty(lhsVal);\n\t\t\t\t\t} else if (operator === \"exist\") {\n\t\t\t\t\t\treturn runtime.doesExist(lhsVal);\n\t\t\t\t\t} else if (operator === \"not exist\") {\n\t\t\t\t\t\treturn !runtime.doesExist(lhsVal);\n\t\t\t\t\t} else if (operator === \"a\") {\n\t\t\t\t\t\treturn runtime.typeCheck(lhsVal, typeName.value, nullOk);\n\t\t\t\t\t} else if (operator === \"not a\") {\n\t\t\t\t\t\treturn !runtime.typeCheck(lhsVal, typeName.value, nullOk);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tthrow \"Unknown comparison : \" + operator;\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t\treturn expr;\n\t});\n\n\t_parser.addGrammarElement(\"comparisonExpression\", function (parser, runtime, tokens) {\n\t\treturn parser.parseAnyOf([\"comparisonOperator\", \"mathExpression\"], tokens);\n\t});\n\n\t_parser.addGrammarElement(\"logicalOperator\", function (parser, runtime, tokens) {\n\t\tvar expr = parser.parseElement(\"comparisonExpression\", tokens);\n\t\tvar logicalOp,\n\t\t\tinitialLogicalOp = null;\n\t\tlogicalOp = tokens.matchToken(\"and\") || tokens.matchToken(\"or\");\n\t\twhile (logicalOp) {\n\t\t\tinitialLogicalOp = initialLogicalOp || logicalOp;\n\t\t\tif (initialLogicalOp.value !== logicalOp.value) {\n\t\t\t\tparser.raiseParseError(tokens, \"You must parenthesize logical operations with different operators\");\n\t\t\t}\n\t\t\tvar rhs = parser.requireElement(\"comparisonExpression\", tokens);\n\t\t\tconst operator = logicalOp.value;\n\t\t\texpr = {\n\t\t\t\ttype: \"logicalOperator\",\n\t\t\t\toperator: operator,\n\t\t\t\tlhs: expr,\n\t\t\t\trhs: rhs,\n\t\t\t\targs: [expr, rhs],\n\t\t\t\top: function (context, lhsVal, rhsVal) {\n\t\t\t\t\tif (operator === \"and\") {\n\t\t\t\t\t\treturn lhsVal && rhsVal;\n\t\t\t\t\t} else {\n\t\t\t\t\t\treturn lhsVal || rhsVal;\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t\tlogicalOp = tokens.matchToken(\"and\") || tokens.matchToken(\"or\");\n\t\t}\n\t\treturn expr;\n\t});\n\n\t_parser.addGrammarElement(\"logicalExpression\", function (parser, runtime, tokens) {\n\t\treturn parser.parseAnyOf([\"logicalOperator\", \"mathExpression\"], tokens);\n\t});\n\n\t_parser.addGrammarElement(\"asyncExpression\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"async\")) {\n\t\t\tvar value = parser.requireElement(\"logicalExpression\", tokens);\n\t\t\tvar expr = {\n\t\t\t\ttype: \"asyncExpression\",\n\t\t\t\tvalue: value,\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn {\n\t\t\t\t\t\tasyncWrapper: true,\n\t\t\t\t\t\tvalue: this.value.evaluate(context), //OK\n\t\t\t\t\t};\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn expr;\n\t\t} else {\n\t\t\treturn parser.parseElement(\"logicalExpression\", tokens);\n\t\t}\n\t});\n\n\t_parser.addGrammarElement(\"expression\", function (parser, runtime, tokens) {\n\t\ttokens.matchToken(\"the\"); // optional the\n\t\treturn parser.parseElement(\"asyncExpression\", tokens);\n\t});\n\n\t_parser.addGrammarElement(\"assignableExpression\", function (parser, runtime, tokens) {\n\t\ttokens.matchToken(\"the\"); // optional the\n\n\t\t// TODO obviously we need to generalize this as a left hand side / targetable concept\n\t\tvar expr = parser.parseElement(\"primaryExpression\", tokens);\n\t\tif (expr && (\n\t\t\texpr.type === \"symbol\" ||\n\t\t\texpr.type === \"ofExpression\" ||\n\t\t\texpr.type === \"propertyAccess\" ||\n\t\t\texpr.type === \"attributeRefAccess\" ||\n\t\t\texpr.type === \"attributeRef\" ||\n\t\t\texpr.type === \"possessive\")\n\t\t) {\n\t\t\treturn expr;\n\t\t} else {\n\t\t\t_parser.raiseParseError(\n\t\t\t\ttokens,\n\t\t\t\t\"A target expression must be writable.  The expression type '\" + (expr && expr.type) + \"' is not.\"\n\t\t\t);\n\t\t}\n\t\treturn expr;\n\t});\n\n\t_parser.addGrammarElement(\"hyperscript\", function (parser, runtime, tokens) {\n\t\tvar features = [];\n\n\t\tif (tokens.hasMore()) {\n\t\t\twhile (parser.featureStart(tokens.currentToken()) || tokens.currentToken().value === \"(\") {\n\t\t\t\tvar feature = parser.requireElement(\"feature\", tokens);\n\t\t\t\tfeatures.push(feature);\n\t\t\t\ttokens.matchToken(\"end\"); // optional end\n\t\t\t}\n\t\t}\n\t\treturn {\n\t\t\ttype: \"hyperscript\",\n\t\t\tfeatures: features,\n\t\t\tapply: function (target, source, args) {\n\t\t\t\t// no op\n\t\t\t\tfor (const feature of features) {\n\t\t\t\t\tfeature.install(target, source, args);\n\t\t\t\t}\n\t\t\t},\n\t\t};\n\t});\n\n\tvar parseEventArgs = function (tokens) {\n\t\tvar args = [];\n\t\t// handle argument list (look ahead 3)\n\t\tif (\n\t\t\ttokens.token(0).value === \"(\" &&\n\t\t\t(tokens.token(1).value === \")\" || tokens.token(2).value === \",\" || tokens.token(2).value === \")\")\n\t\t) {\n\t\t\ttokens.matchOpToken(\"(\");\n\t\t\tdo {\n\t\t\t\targs.push(tokens.requireTokenType(\"IDENTIFIER\"));\n\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t\ttokens.requireOpToken(\")\");\n\t\t}\n\t\treturn args;\n\t};\n\n\t_parser.addFeature(\"on\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"on\")) return;\n\t\tvar every = false;\n\t\tif (tokens.matchToken(\"every\")) {\n\t\t\tevery = true;\n\t\t}\n\t\tvar events = [];\n\t\tvar displayName = null;\n\t\tdo {\n\t\t\tvar on = parser.requireElement(\"eventName\", tokens, \"Expected event name\");\n\n\t\t\tvar eventName = on.evaluate(); // OK No Promise\n\n\t\t\tif (displayName) {\n\t\t\t\tdisplayName = displayName + \" or \" + eventName;\n\t\t\t} else {\n\t\t\t\tdisplayName = \"on \" + eventName;\n\t\t\t}\n\t\t\tvar args = parseEventArgs(tokens);\n\n\t\t\tvar filter = null;\n\t\t\tif (tokens.matchOpToken(\"[\")) {\n\t\t\t\tfilter = parser.requireElement(\"expression\", tokens);\n\t\t\t\ttokens.requireOpToken(\"]\");\n\t\t\t}\n\n\t\t\tif (tokens.currentToken().type === \"NUMBER\") {\n\t\t\t\tvar startCountToken = tokens.consumeToken();\n\t\t\t\tvar startCount = parseInt(startCountToken.value);\n\t\t\t\tif (tokens.matchToken(\"to\")) {\n\t\t\t\t\tvar endCountToken = tokens.consumeToken();\n\t\t\t\t\tvar endCount = parseInt(endCountToken.value);\n\t\t\t\t} else if (tokens.matchToken(\"and\")) {\n\t\t\t\t\tvar unbounded = true;\n\t\t\t\t\ttokens.requireToken(\"on\");\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (eventName === \"intersection\") {\n\t\t\t\tvar intersectionSpec = {};\n\t\t\t\tif (tokens.matchToken(\"with\")) {\n\t\t\t\t\tintersectionSpec[\"with\"] = parser.requireElement(\"expression\", tokens).evaluate();\n\t\t\t\t}\n\t\t\t\tif (tokens.matchToken(\"having\")) {\n\t\t\t\t\tdo {\n\t\t\t\t\t\tif (tokens.matchToken(\"margin\")) {\n\t\t\t\t\t\t\tintersectionSpec[\"rootMargin\"] = parser.requireElement(\"stringLike\", tokens).evaluate();\n\t\t\t\t\t\t} else if (tokens.matchToken(\"threshold\")) {\n\t\t\t\t\t\t\tintersectionSpec[\"threshold\"] = parser.requireElement(\"expression\", tokens).evaluate();\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tparser.raiseParseError(tokens, \"Unknown intersection config specification\");\n\t\t\t\t\t\t}\n\t\t\t\t\t} while (tokens.matchToken(\"and\"));\n\t\t\t\t}\n\t\t\t} else if (eventName === \"mutation\") {\n\t\t\t\tvar mutationSpec = {};\n\t\t\t\tif (tokens.matchToken(\"of\")) {\n\t\t\t\t\tdo {\n\t\t\t\t\t\tif (tokens.matchToken(\"anything\")) {\n\t\t\t\t\t\t\tmutationSpec[\"attributes\"] = true;\n\t\t\t\t\t\t\tmutationSpec[\"subtree\"] = true;\n\t\t\t\t\t\t\tmutationSpec[\"characterData\"] = true;\n\t\t\t\t\t\t\tmutationSpec[\"childList\"] = true;\n\t\t\t\t\t\t} else if (tokens.matchToken(\"childList\")) {\n\t\t\t\t\t\t\tmutationSpec[\"childList\"] = true;\n\t\t\t\t\t\t} else if (tokens.matchToken(\"attributes\")) {\n\t\t\t\t\t\t\tmutationSpec[\"attributes\"] = true;\n\t\t\t\t\t\t\tmutationSpec[\"attributeOldValue\"] = true;\n\t\t\t\t\t\t} else if (tokens.matchToken(\"subtree\")) {\n\t\t\t\t\t\t\tmutationSpec[\"subtree\"] = true;\n\t\t\t\t\t\t} else if (tokens.matchToken(\"characterData\")) {\n\t\t\t\t\t\t\tmutationSpec[\"characterData\"] = true;\n\t\t\t\t\t\t\tmutationSpec[\"characterDataOldValue\"] = true;\n\t\t\t\t\t\t} else if (tokens.currentToken().type === \"ATTRIBUTE_REF\") {\n\t\t\t\t\t\t\tvar attribute = tokens.consumeToken();\n\t\t\t\t\t\t\tif (mutationSpec[\"attributeFilter\"] == null) {\n\t\t\t\t\t\t\t\tmutationSpec[\"attributeFilter\"] = [];\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tif (attribute.value.indexOf(\"@\") == 0) {\n\t\t\t\t\t\t\t\tmutationSpec[\"attributeFilter\"].push(attribute.value.substring(1));\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\tparser.raiseParseError(\n\t\t\t\t\t\t\t\t\ttokens,\n\t\t\t\t\t\t\t\t\t\"Only shorthand attribute references are allowed here\"\n\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tparser.raiseParseError(tokens, \"Unknown mutation config specification\");\n\t\t\t\t\t\t}\n\t\t\t\t\t} while (tokens.matchToken(\"or\"));\n\t\t\t\t} else {\n\t\t\t\t\tmutationSpec[\"attributes\"] = true;\n\t\t\t\t\tmutationSpec[\"characterData\"] = true;\n\t\t\t\t\tmutationSpec[\"childList\"] = true;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tvar from = null;\n\t\t\tvar elsewhere = false;\n\t\t\tif (tokens.matchToken(\"from\")) {\n\t\t\t\tif (tokens.matchToken(\"elsewhere\")) {\n\t\t\t\t\telsewhere = true;\n\t\t\t\t} else {\n\t\t\t\t\tfrom = parser.parseElement(\"expression\", tokens);\n\t\t\t\t\tif (!from) {\n\t\t\t\t\t\tparser.raiseParseError(tokens, 'Expected either target value or \"elsewhere\".');\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\t// support both \"elsewhere\" and \"from elsewhere\"\n\t\t\tif (from === null && elsewhere === false && tokens.matchToken(\"elsewhere\")) {\n\t\t\t\telsewhere = true;\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"in\")) {\n\t\t\t\tvar inExpr = parser.parseAnyOf([\"idRef\", \"queryRef\", \"classRef\"], tokens);\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"debounced\")) {\n\t\t\t\ttokens.requireToken(\"at\");\n\t\t\t\tvar timeExpr = parser.requireElement(\"timeExpression\", tokens);\n\t\t\t\t// @ts-ignore\n\t\t\t\tvar debounceTime = timeExpr.evaluate({}); // OK No promise TODO make a literal time expr\n\t\t\t} else if (tokens.matchToken(\"throttled\")) {\n\t\t\t\ttokens.requireToken(\"at\");\n\t\t\t\tvar timeExpr = parser.requireElement(\"timeExpression\", tokens);\n\t\t\t\t// @ts-ignore\n\t\t\t\tvar throttleTime = timeExpr.evaluate({}); // OK No promise TODO make a literal time expr\n\t\t\t}\n\n\t\t\tevents.push({\n\t\t\t\texecCount: 0,\n\t\t\t\tevery: every,\n\t\t\t\ton: eventName,\n\t\t\t\targs: args,\n\t\t\t\tfilter: filter,\n\t\t\t\tfrom: from,\n\t\t\t\tinExpr: inExpr,\n\t\t\t\telsewhere: elsewhere,\n\t\t\t\tstartCount: startCount,\n\t\t\t\tendCount: endCount,\n\t\t\t\tunbounded: unbounded,\n\t\t\t\tdebounceTime: debounceTime,\n\t\t\t\tthrottleTime: throttleTime,\n\t\t\t\tmutationSpec: mutationSpec,\n\t\t\t\tintersectionSpec: intersectionSpec,\n\t\t\t\tdebounced: undefined,\n\t\t\t\tlastExec: undefined,\n\t\t\t});\n\t\t} while (tokens.matchToken(\"or\"));\n\n\t\tvar queueLast = true;\n\t\tif (!every) {\n\t\t\tif (tokens.matchToken(\"queue\")) {\n\t\t\t\tif (tokens.matchToken(\"all\")) {\n\t\t\t\t\tvar queueAll = true;\n\t\t\t\t\tvar queueLast = false;\n\t\t\t\t} else if (tokens.matchToken(\"first\")) {\n\t\t\t\t\tvar queueFirst = true;\n\t\t\t\t} else if (tokens.matchToken(\"none\")) {\n\t\t\t\t\tvar queueNone = true;\n\t\t\t\t} else {\n\t\t\t\t\ttokens.requireToken(\"last\");\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tvar start = parser.requireElement(\"commandList\", tokens);\n\t\tparser.ensureTerminated(start);\n\n\t\tif (tokens.matchToken(\"catch\")) {\n\t\t\tvar errorSymbol = tokens.requireTokenType(\"IDENTIFIER\").value;\n\t\t\tvar errorHandler = parser.requireElement(\"commandList\", tokens);\n\t\t\tparser.ensureTerminated(errorHandler);\n\t\t}\n\n\t\tif (tokens.matchToken(\"finally\")) {\n\t\t\tvar finallyHandler = parser.requireElement(\"commandList\", tokens);\n\t\t\tparser.ensureTerminated(finallyHandler);\n\t\t}\n\n\t\tvar onFeature = {\n\t\t\tdisplayName: displayName,\n\t\t\tevents: events,\n\t\t\tstart: start,\n\t\t\tevery: every,\n\t\t\texecCount: 0,\n\t\t\terrorHandler: errorHandler,\n\t\t\terrorSymbol: errorSymbol,\n\t\t\texecute: function (/** @type {Context} */ ctx) {\n\t\t\t\tlet eventQueueInfo = runtime.getEventQueueFor(ctx.me, onFeature);\n\t\t\t\tif (eventQueueInfo.executing && every === false) {\n\t\t\t\t\tif (queueNone || (queueFirst && eventQueueInfo.queue.length > 0)) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\t\t\t\t\tif (queueLast) {\n\t\t\t\t\t\teventQueueInfo.queue.length = 0;\n\t\t\t\t\t}\n\t\t\t\t\teventQueueInfo.queue.push(ctx);\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t\tonFeature.execCount++;\n\t\t\t\teventQueueInfo.executing = true;\n\t\t\t\tctx.meta.onHalt = function () {\n\t\t\t\t\teventQueueInfo.executing = false;\n\t\t\t\t\tvar queued = eventQueueInfo.queue.shift();\n\t\t\t\t\tif (queued) {\n\t\t\t\t\t\tsetTimeout(function () {\n\t\t\t\t\t\t\tonFeature.execute(queued);\n\t\t\t\t\t\t}, 1);\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t\tctx.meta.reject = function (err) {\n\t\t\t\t\tconsole.error(err.message ? err.message : err);\n\t\t\t\t\tvar hypertrace = runtime.getHyperTrace(ctx, err);\n\t\t\t\t\tif (hypertrace) {\n\t\t\t\t\t\thypertrace.print();\n\t\t\t\t\t}\n\t\t\t\t\truntime.triggerEvent(ctx.me, \"exception\", {\n\t\t\t\t\t\terror: err,\n\t\t\t\t\t});\n\t\t\t\t};\n\t\t\t\tstart.execute(ctx);\n\t\t\t},\n\t\t\tinstall: function (elt, source) {\n\t\t\t\tfor (const eventSpec of onFeature.events) {\n\t\t\t\t\tvar targets;\n\t\t\t\t\tif (eventSpec.elsewhere) {\n\t\t\t\t\t\ttargets = [document];\n\t\t\t\t\t} else if (eventSpec.from) {\n\t\t\t\t\t\ttargets = eventSpec.from.evaluate(runtime.makeContext(elt, onFeature, elt, null));\n\t\t\t\t\t} else {\n\t\t\t\t\t\ttargets = [elt];\n\t\t\t\t\t}\n\t\t\t\t\truntime.forEach(targets, function (target) {\n\t\t\t\t\t\t// OK NO PROMISE\n\n\t\t\t\t\t\tvar eventName = eventSpec.on;\n\t\t\t\t\t\tif (eventSpec.mutationSpec) {\n\t\t\t\t\t\t\teventName = \"hyperscript:mutation\";\n\t\t\t\t\t\t\tconst observer = new MutationObserver(function (mutationList, observer) {\n\t\t\t\t\t\t\t\tif (!onFeature.executing) {\n\t\t\t\t\t\t\t\t\t_runtime.triggerEvent(target, eventName, {\n\t\t\t\t\t\t\t\t\t\tmutationList: mutationList,\n\t\t\t\t\t\t\t\t\t\tobserver: observer,\n\t\t\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\tobserver.observe(target, eventSpec.mutationSpec);\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif (eventSpec.intersectionSpec) {\n\t\t\t\t\t\t\teventName = \"hyperscript:insersection\";\n\t\t\t\t\t\t\tconst observer = new IntersectionObserver(function (entries) {\n\t\t\t\t\t\t\t\tfor (const entry of entries) {\n\t\t\t\t\t\t\t\t\tvar detail = {\n\t\t\t\t\t\t\t\t\t\tobserver: observer,\n\t\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t\t\tdetail = mergeObjects(detail, entry);\n\t\t\t\t\t\t\t\t\tdetail[\"intersecting\"] = entry.isIntersecting;\n\t\t\t\t\t\t\t\t\t_runtime.triggerEvent(target, eventName, detail);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}, eventSpec.intersectionSpec);\n\t\t\t\t\t\t\tobserver.observe(target);\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvar addEventListener = target.addEventListener || target.on;\n\t\t\t\t\t\taddEventListener.call(target, eventName, function listener(evt) {\n\t\t\t\t\t\t\t// OK NO PROMISE\n\t\t\t\t\t\t\tif (typeof Node !== 'undefined' && elt instanceof Node && target !== elt && !elt.isConnected) {\n\t\t\t\t\t\t\t\ttarget.removeEventListener(eventName, listener);\n\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tvar ctx = runtime.makeContext(elt, onFeature, elt, evt);\n\t\t\t\t\t\t\tif (eventSpec.elsewhere && elt.contains(evt.target)) {\n\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tif (eventSpec.from) {\n\t\t\t\t\t\t\t\tctx.result = target;\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// establish context\n\t\t\t\t\t\t\tfor (const arg of eventSpec.args) {\n\t\t\t\t\t\t\t\tctx[arg.value] =\n\t\t\t\t\t\t\t\t\tctx.event[arg.value] || ('detail' in ctx.event ? ctx.event['detail'][arg.value] : null);\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// install error handler if any\n\t\t\t\t\t\t\tctx.meta.errorHandler = errorHandler;\n\t\t\t\t\t\t\tctx.meta.errorSymbol = errorSymbol;\n\t\t\t\t\t\t\tctx.meta.finallyHandler = finallyHandler;\n\n\t\t\t\t\t\t\t// apply filter\n\t\t\t\t\t\t\tif (eventSpec.filter) {\n\t\t\t\t\t\t\t\tvar initialCtx = ctx.meta.context;\n\t\t\t\t\t\t\t\tctx.meta.context = ctx.event;\n\t\t\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\t\t\tvar value = eventSpec.filter.evaluate(ctx); //OK NO PROMISE\n\t\t\t\t\t\t\t\t\tif (value) {\n\t\t\t\t\t\t\t\t\t\t// match the javascript semantics for if statements\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t} finally {\n\t\t\t\t\t\t\t\t\tctx.meta.context = initialCtx;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif (eventSpec.inExpr) {\n\t\t\t\t\t\t\t\tvar inElement = evt.target;\n\t\t\t\t\t\t\t\twhile (true) {\n\t\t\t\t\t\t\t\t\tif (inElement.matches && inElement.matches(eventSpec.inExpr.css)) {\n\t\t\t\t\t\t\t\t\t\tctx.result = inElement;\n\t\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\tinElement = inElement.parentElement;\n\t\t\t\t\t\t\t\t\t\tif (inElement == null) {\n\t\t\t\t\t\t\t\t\t\t\treturn; // no match found\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// verify counts\n\t\t\t\t\t\t\teventSpec.execCount++;\n\t\t\t\t\t\t\tif (eventSpec.startCount) {\n\t\t\t\t\t\t\t\tif (eventSpec.endCount) {\n\t\t\t\t\t\t\t\t\tif (\n\t\t\t\t\t\t\t\t\t\teventSpec.execCount < eventSpec.startCount ||\n\t\t\t\t\t\t\t\t\t\teventSpec.execCount > eventSpec.endCount\n\t\t\t\t\t\t\t\t\t) {\n\t\t\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t} else if (eventSpec.unbounded) {\n\t\t\t\t\t\t\t\t\tif (eventSpec.execCount < eventSpec.startCount) {\n\t\t\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t} else if (eventSpec.execCount !== eventSpec.startCount) {\n\t\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t//debounce\n\t\t\t\t\t\t\tif (eventSpec.debounceTime) {\n\t\t\t\t\t\t\t\tif (eventSpec.debounced) {\n\t\t\t\t\t\t\t\t\tclearTimeout(eventSpec.debounced);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\teventSpec.debounced = setTimeout(function () {\n\t\t\t\t\t\t\t\t\tonFeature.execute(ctx);\n\t\t\t\t\t\t\t\t}, eventSpec.debounceTime);\n\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// throttle\n\t\t\t\t\t\t\tif (eventSpec.throttleTime) {\n\t\t\t\t\t\t\t\tif (\n\t\t\t\t\t\t\t\t\teventSpec.lastExec &&\n\t\t\t\t\t\t\t\t\tDate.now() < eventSpec.lastExec + eventSpec.throttleTime\n\t\t\t\t\t\t\t\t) {\n\t\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\teventSpec.lastExec = Date.now();\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// apply execute\n\t\t\t\t\t\t\tonFeature.execute(ctx);\n\t\t\t\t\t\t});\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t},\n\t\t};\n\t\tparser.setParent(start, onFeature);\n\t\treturn onFeature;\n\t});\n\n\t_parser.addFeature(\"def\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"def\")) return;\n\t\tvar functionName = parser.requireElement(\"dotOrColonPath\", tokens);\n\t\tvar nameVal = functionName.evaluate(); // OK\n\t\tvar nameSpace = nameVal.split(\".\");\n\t\tvar funcName = nameSpace.pop();\n\n\t\tvar args = [];\n\t\tif (tokens.matchOpToken(\"(\")) {\n\t\t\tif (tokens.matchOpToken(\")\")) {\n\t\t\t\t// emtpy args list\n\t\t\t} else {\n\t\t\t\tdo {\n\t\t\t\t\targs.push(tokens.requireTokenType(\"IDENTIFIER\"));\n\t\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t\t\ttokens.requireOpToken(\")\");\n\t\t\t}\n\t\t}\n\n\t\tvar start = parser.requireElement(\"commandList\", tokens);\n\n\t\tif (tokens.matchToken(\"catch\")) {\n\t\t\tvar errorSymbol = tokens.requireTokenType(\"IDENTIFIER\").value;\n\t\t\tvar errorHandler = parser.parseElement(\"commandList\", tokens);\n\t\t}\n\n\t\tif (tokens.matchToken(\"finally\")) {\n\t\t\tvar finallyHandler = parser.requireElement(\"commandList\", tokens);\n\t\t\tparser.ensureTerminated(finallyHandler);\n\t\t}\n\n\t\tvar functionFeature = {\n\t\t\tdisplayName:\n\t\t\t\tfuncName +\n\t\t\t\t\"(\" +\n\t\t\t\targs\n\t\t\t\t\t.map(function (arg) {\n\t\t\t\t\t\treturn arg.value;\n\t\t\t\t\t})\n\t\t\t\t\t.join(\", \") +\n\t\t\t\t\")\",\n\t\t\tname: funcName,\n\t\t\targs: args,\n\t\t\tstart: start,\n\t\t\terrorHandler: errorHandler,\n\t\t\terrorSymbol: errorSymbol,\n\t\t\tfinallyHandler: finallyHandler,\n\t\t\tinstall: function (target, source) {\n\t\t\t\tvar func = function () {\n\t\t\t\t\t// null, worker\n\t\t\t\t\tvar ctx = runtime.makeContext(source, functionFeature, target, null);\n\n\t\t\t\t\t// install error handler if any\n\t\t\t\t\tctx.meta.errorHandler = errorHandler;\n\t\t\t\t\tctx.meta.errorSymbol = errorSymbol;\n\t\t\t\t\tctx.meta.finallyHandler = finallyHandler;\n\n\t\t\t\t\tfor (var i = 0; i < args.length; i++) {\n\t\t\t\t\t\tvar name = args[i];\n\t\t\t\t\t\tvar argumentVal = arguments[i];\n\t\t\t\t\t\tif (name) {\n\t\t\t\t\t\t\tctx[name.value] = argumentVal;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tctx.meta.caller = arguments[args.length];\n\t\t\t\t\tif (ctx.meta.caller) {\n\t\t\t\t\t\tctx.meta.callingCommand = ctx.meta.caller.meta.command;\n\t\t\t\t\t}\n\t\t\t\t\tvar resolve,\n\t\t\t\t\t\treject = null;\n\t\t\t\t\tvar promise = new Promise(function (theResolve, theReject) {\n\t\t\t\t\t\tresolve = theResolve;\n\t\t\t\t\t\treject = theReject;\n\t\t\t\t\t});\n\t\t\t\t\tstart.execute(ctx);\n\t\t\t\t\tif (ctx.meta.returned) {\n\t\t\t\t\t\treturn ctx.meta.returnValue;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tctx.meta.resolve = resolve;\n\t\t\t\t\t\tctx.meta.reject = reject;\n\t\t\t\t\t\treturn promise;\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t\tfunc.hyperfunc = true;\n\t\t\t\tfunc.hypername = nameVal;\n\t\t\t\truntime.assignToNamespace(target, nameSpace, funcName, func);\n\t\t\t},\n\t\t};\n\n\t\tparser.ensureTerminated(start);\n\n\t\t// terminate error handler if any\n\t\tif (errorHandler) {\n\t\t\tparser.ensureTerminated(errorHandler);\n\t\t}\n\n\t\tparser.setParent(start, functionFeature);\n\t\treturn functionFeature;\n\t});\n\n\t_parser.addFeature(\"set\", function (parser, runtime, tokens) {\n\t\tlet setCmd = parser.parseElement(\"setCommand\", tokens);\n\t\tif (setCmd) {\n\t\t\tif (setCmd.target.scope !== \"element\") {\n\t\t\t\tparser.raiseParseError(tokens, \"variables declared at the feature level must be element scoped.\");\n\t\t\t}\n\t\t\tlet setFeature = {\n\t\t\t\tstart: setCmd,\n\t\t\t\tinstall: function (target, source) {\n\t\t\t\t\tsetCmd && setCmd.execute(runtime.makeContext(target, setFeature, target, null));\n\t\t\t\t},\n\t\t\t};\n\t\t\tparser.ensureTerminated(setCmd);\n\t\t\treturn setFeature;\n\t\t}\n\t});\n\n\t_parser.addFeature(\"init\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"init\")) return;\n\n\t\tvar start = parser.requireElement(\"commandList\", tokens);\n\t\tvar initFeature = {\n\t\t\tstart: start,\n\t\t\tinstall: function (target, source) {\n\t\t\t\tsetTimeout(function () {\n\t\t\t\t\tstart && start.execute(runtime.makeContext(target, initFeature, target, null));\n\t\t\t\t}, 0);\n\t\t\t},\n\t\t};\n\n\t\t// terminate body\n\t\tparser.ensureTerminated(start);\n\t\tparser.setParent(start, initFeature);\n\t\treturn initFeature;\n\t});\n\n\t_parser.addFeature(\"worker\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"worker\")) {\n\t\t\tparser.raiseParseError(\n\t\t\t\ttokens,\n\t\t\t\t\"In order to use the 'worker' feature, include \" +\n\t\t\t\t\t\"the _hyperscript worker plugin. See \" +\n\t\t\t\t\t\"https://hyperscript.org/features/worker/ for \" +\n\t\t\t\t\t\"more info.\"\n\t\t\t);\n\t\t}\n\t});\n\n\t_parser.addFeature(\"behavior\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"behavior\")) return;\n\t\tvar path = parser.requireElement(\"dotOrColonPath\", tokens).evaluate();\n\t\tvar nameSpace = path.split(\".\");\n\t\tvar name = nameSpace.pop();\n\n\t\tvar formalParams = [];\n\t\tif (tokens.matchOpToken(\"(\") && !tokens.matchOpToken(\")\")) {\n\t\t\tdo {\n\t\t\t\tformalParams.push(tokens.requireTokenType(\"IDENTIFIER\").value);\n\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t\ttokens.requireOpToken(\")\");\n\t\t}\n\t\tvar hs = parser.requireElement(\"hyperscript\", tokens);\n\t\tfor (var i = 0; i < hs.features.length; i++) {\n\t\t\tvar feature = hs.features[i];\n\t\t\tfeature.behavior = path;\n\t\t}\n\n\t\treturn {\n\t\t\tinstall: function (target, source) {\n\t\t\t\truntime.assignToNamespace(\n\t\t\t\t\tglobalScope.document && globalScope.document.body,\n\t\t\t\t\tnameSpace,\n\t\t\t\t\tname,\n\t\t\t\t\tfunction (target, source, innerArgs) {\n\t\t\t\t\t\tvar internalData = runtime.getInternalData(target);\n\t\t\t\t\t\tvar elementScope = getOrInitObject(internalData, path + \"Scope\");\n\t\t\t\t\t\tfor (var i = 0; i < formalParams.length; i++) {\n\t\t\t\t\t\t\telementScope[formalParams[i]] = innerArgs[formalParams[i]];\n\t\t\t\t\t\t}\n\t\t\t\t\t\ths.apply(target, source);\n\t\t\t\t\t}\n\t\t\t\t);\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addFeature(\"install\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"install\")) return;\n\t\tvar behaviorPath = parser.requireElement(\"dotOrColonPath\", tokens).evaluate();\n\t\tvar behaviorNamespace = behaviorPath.split(\".\");\n\t\tvar args = parser.parseElement(\"namedArgumentList\", tokens);\n\n\t\tvar installFeature;\n\t\treturn (installFeature = {\n\t\t\tinstall: function (target, source) {\n\t\t\t\truntime.unifiedEval(\n\t\t\t\t\t{\n\t\t\t\t\t\targs: [args],\n\t\t\t\t\t\top: function (ctx, args) {\n\t\t\t\t\t\t\tvar behavior = globalScope;\n\t\t\t\t\t\t\tfor (var i = 0; i < behaviorNamespace.length; i++) {\n\t\t\t\t\t\t\t\tbehavior = behavior[behaviorNamespace[i]];\n\t\t\t\t\t\t\t\tif (typeof behavior !== \"object\" && typeof behavior !== \"function\")\n\t\t\t\t\t\t\t\t\tthrow new Error(\"No such behavior defined as \" + behaviorPath);\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif (!(behavior instanceof Function))\n\t\t\t\t\t\t\t\tthrow new Error(behaviorPath + \" is not a behavior\");\n\n\t\t\t\t\t\t\tbehavior(target, source, args);\n\t\t\t\t\t\t},\n\t\t\t\t\t},\n\t\t\t\t\truntime.makeContext(target, installFeature, target)\n\t\t\t\t);\n\t\t\t},\n\t\t});\n\t});\n\n\t_parser.addGrammarElement(\"jsBody\", function (parser, runtime, tokens) {\n\t\tvar jsSourceStart = tokens.currentToken().start;\n\t\tvar jsLastToken = tokens.currentToken();\n\n\t\tvar funcNames = [];\n\t\tvar funcName = \"\";\n\t\tvar expectFunctionDeclaration = false;\n\t\twhile (tokens.hasMore()) {\n\t\t\tjsLastToken = tokens.consumeToken();\n\t\t\tvar peek = tokens.token(0, true);\n\t\t\tif (peek.type === \"IDENTIFIER\" && peek.value === \"end\") {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tif (expectFunctionDeclaration) {\n\t\t\t\tif (jsLastToken.type === \"IDENTIFIER\" || jsLastToken.type === \"NUMBER\") {\n\t\t\t\t\tfuncName += jsLastToken.value;\n\t\t\t\t} else {\n\t\t\t\t\tif (funcName !== \"\") funcNames.push(funcName);\n\t\t\t\t\tfuncName = \"\";\n\t\t\t\t\texpectFunctionDeclaration = false;\n\t\t\t\t}\n\t\t\t} else if (jsLastToken.type === \"IDENTIFIER\" && jsLastToken.value === \"function\") {\n\t\t\t\texpectFunctionDeclaration = true;\n\t\t\t}\n\t\t}\n\t\tvar jsSourceEnd = jsLastToken.end + 1;\n\n\t\treturn {\n\t\t\ttype: \"jsBody\",\n\t\t\texposedFunctionNames: funcNames,\n\t\t\tjsSource: tokens.source.substring(jsSourceStart, jsSourceEnd),\n\t\t};\n\t});\n\n\t_parser.addFeature(\"js\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"js\")) return;\n\t\tvar jsBody = parser.requireElement(\"jsBody\", tokens);\n\n\t\tvar jsSource =\n\t\t\tjsBody.jsSource +\n\t\t\t\"\\nreturn { \" +\n\t\t\tjsBody.exposedFunctionNames\n\t\t\t\t.map(function (name) {\n\t\t\t\t\treturn name + \":\" + name;\n\t\t\t\t})\n\t\t\t\t.join(\",\") +\n\t\t\t\" } \";\n\t\tvar func = new Function(jsSource);\n\n\t\treturn {\n\t\t\tjsSource: jsSource,\n\t\t\tfunction: func,\n\t\t\texposedFunctionNames: jsBody.exposedFunctionNames,\n\t\t\tinstall: function () {\n\t\t\t\tmergeObjects(globalScope, func());\n\t\t\t},\n\t\t};\n\t});\n\n\t_parser.addCommand(\"js\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"js\")) return;\n\t\t// Parse inputs\n\t\tvar inputs = [];\n\t\tif (tokens.matchOpToken(\"(\")) {\n\t\t\tif (tokens.matchOpToken(\")\")) {\n\t\t\t\t// empty input list\n\t\t\t} else {\n\t\t\t\tdo {\n\t\t\t\t\tvar inp = tokens.requireTokenType(\"IDENTIFIER\");\n\t\t\t\t\tinputs.push(inp.value);\n\t\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t\t\ttokens.requireOpToken(\")\");\n\t\t\t}\n\t\t}\n\n\t\tvar jsBody = parser.requireElement(\"jsBody\", tokens);\n\t\ttokens.matchToken(\"end\");\n\n\t\tvar func = varargConstructor(Function, inputs.concat([jsBody.jsSource]));\n\n\t\tvar command = {\n\t\t\tjsSource: jsBody.jsSource,\n\t\t\tfunction: func,\n\t\t\tinputs: inputs,\n\t\t\top: function (context) {\n\t\t\t\tvar args = [];\n\t\t\t\tinputs.forEach(function (input) {\n\t\t\t\t\targs.push(runtime.resolveSymbol(input, context, 'default'));\n\t\t\t\t});\n\t\t\t\tvar result = func.apply(globalScope, args);\n\t\t\t\tif (result && typeof result.then === \"function\") {\n\t\t\t\t\treturn new Promise(function (resolve) {\n\t\t\t\t\t\tresult.then(function (actualResult) {\n\t\t\t\t\t\t\tcontext.result = actualResult;\n\t\t\t\t\t\t\tresolve(runtime.findNext(this, context));\n\t\t\t\t\t\t});\n\t\t\t\t\t});\n\t\t\t\t} else {\n\t\t\t\t\tcontext.result = result;\n\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t}\n\t\t\t},\n\t\t};\n\t\treturn command;\n\t});\n\n\t_parser.addCommand(\"async\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"async\")) return;\n\t\tif (tokens.matchToken(\"do\")) {\n\t\t\tvar body = parser.requireElement(\"commandList\", tokens);\n\n\t\t\t// Append halt\n\t\t\tvar end = body;\n\t\t\twhile (end.next) end = end.next;\n\t\t\tend.next = runtime.HALT;\n\n\t\t\ttokens.requireToken(\"end\");\n\t\t} else {\n\t\t\tvar body = parser.requireElement(\"command\", tokens);\n\t\t}\n\t\tvar command = {\n\t\t\tbody: body,\n\t\t\top: function (context) {\n\t\t\t\tsetTimeout(function () {\n\t\t\t\t\tbody.execute(context);\n\t\t\t\t});\n\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t},\n\t\t};\n\t\tparser.setParent(body, command);\n\t\treturn command;\n\t});\n\n\t_parser.addCommand(\"tell\", function (parser, runtime, tokens) {\n\t\tvar startToken = tokens.currentToken();\n\t\tif (!tokens.matchToken(\"tell\")) return;\n\t\tvar value = parser.requireElement(\"expression\", tokens);\n\t\tvar body = parser.requireElement(\"commandList\", tokens);\n\t\tif (tokens.hasMore() && !parser.featureStart(tokens.currentToken())) {\n\t\t\ttokens.requireToken(\"end\");\n\t\t}\n\t\tvar slot = \"tell_\" + startToken.start;\n\t\tvar tellCmd = {\n\t\t\tvalue: value,\n\t\t\tbody: body,\n\t\t\targs: [value],\n\t\t\tresolveNext: function (context) {\n\t\t\t\tvar iterator = context.meta.iterators[slot];\n\t\t\t\tif (iterator.index < iterator.value.length) {\n\t\t\t\t\tcontext.beingTold = iterator.value[iterator.index++];\n\t\t\t\t\treturn body;\n\t\t\t\t} else {\n\t\t\t\t\t// restore original me\n\t\t\t\t\tcontext.beingTold = iterator.originalBeingTold;\n\t\t\t\t\tif (this.next) {\n\t\t\t\t\t\treturn this.next;\n\t\t\t\t\t} else {\n\t\t\t\t\t\treturn runtime.findNext(this.parent, context);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t},\n\t\t\top: function (context, value) {\n\t\t\t\tif (value == null) {\n\t\t\t\t\tvalue = [];\n\t\t\t\t} else if (!(Array.isArray(value) || value instanceof NodeList)) {\n\t\t\t\t\tvalue = [value];\n\t\t\t\t}\n\t\t\t\tcontext.meta.iterators[slot] = {\n\t\t\t\t\toriginalBeingTold: context.beingTold,\n\t\t\t\t\tindex: 0,\n\t\t\t\t\tvalue: value,\n\t\t\t\t};\n\t\t\t\treturn this.resolveNext(context);\n\t\t\t},\n\t\t};\n\t\tparser.setParent(body, tellCmd);\n\t\treturn tellCmd;\n\t});\n\n\t_parser.addCommand(\"wait\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"wait\")) return;\n\t\tvar command;\n\n\t\t// wait on event\n\t\tif (tokens.matchToken(\"for\")) {\n\t\t\ttokens.matchToken(\"a\"); // optional \"a\"\n\t\t\tvar events = [];\n\t\t\tdo {\n\t\t\t\tvar lookahead = tokens.token(0);\n\t\t\t\tif (lookahead.type === 'NUMBER' || lookahead.type === 'L_PAREN') {\n\t\t\t\t\tevents.push({\n\t\t\t\t\t\ttime: parser.requireElement('timeExpression', tokens).evaluate() // TODO: do we want to allow async here?\n\t\t\t\t\t})\n\t\t\t\t} else {\n\t\t\t\t\tevents.push({\n\t\t\t\t\t\tname: _parser.requireElement(\"dotOrColonPath\", tokens, \"Expected event name\").evaluate(),\n\t\t\t\t\t\targs: parseEventArgs(tokens),\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t} while (tokens.matchToken(\"or\"));\n\n\t\t\tif (tokens.matchToken(\"from\")) {\n\t\t\t\tvar on = parser.requireElement(\"expression\", tokens);\n\t\t\t}\n\n\t\t\t// wait on event\n\t\t\tcommand = {\n\t\t\t\tevent: events,\n\t\t\t\ton: on,\n\t\t\t\targs: [on],\n\t\t\t\top: function (context, on) {\n\t\t\t\t\tvar target = on ? on : context.me;\n\t\t\t\t\tif (!(target instanceof EventTarget))\n\t\t\t\t\t\tthrow new Error(\"Not a valid event target: \" + this.on.sourceFor());\n\t\t\t\t\treturn new Promise((resolve) => {\n\t\t\t\t\t\tvar resolved = false;\n\t\t\t\t\t\tfor (const eventInfo of events) {\n\t\t\t\t\t\t\tvar listener = (event) => {\n\t\t\t\t\t\t\t\tcontext.result = event;\n\t\t\t\t\t\t\t\tfor (const arg of eventInfo.args) {\n\t\t\t\t\t\t\t\t\tcontext[arg.value] =\n\t\t\t\t\t\t\t\t\t\tevent[arg.value] || (event.detail ? event.detail[arg.value] : null);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tif (!resolved) {\n\t\t\t\t\t\t\t\t\tresolved = true;\n\t\t\t\t\t\t\t\t\tresolve(runtime.findNext(this, context));\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\tif (eventInfo.name) target.addEventListener(eventInfo.name, listener, { once: true });\n\t\t\t\t\t\t\telse if (eventInfo.time) setTimeout(listener, eventInfo.time, eventInfo.time)\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn command;\n\t\t} else {\n\t\t\tvar time;\n\t\t\tif (tokens.matchToken(\"a\")) {\n\t\t\t\ttokens.requireToken(\"tick\");\n\t\t\t\ttime = 0;\n\t\t\t} else {\n\t\t\t\ttime = _parser.requireElement(\"timeExpression\", tokens);\n\t\t\t}\n\n\t\t\tcommand = {\n\t\t\t\ttype: \"waitCmd\",\n\t\t\t\ttime: time,\n\t\t\t\targs: [time],\n\t\t\t\top: function (context, timeValue) {\n\t\t\t\t\treturn new Promise((resolve) => {\n\t\t\t\t\t\tsetTimeout(() => {\n\t\t\t\t\t\t\tresolve(runtime.findNext(this, context));\n\t\t\t\t\t\t}, timeValue);\n\t\t\t\t\t});\n\t\t\t\t},\n\t\t\t\texecute: function (context) {\n\t\t\t\t\treturn runtime.unifiedExec(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn command;\n\t\t}\n\t});\n\n\t// TODO  - colon path needs to eventually become part of ruby-style symbols\n\t_parser.addGrammarElement(\"dotOrColonPath\", function (parser, runtime, tokens) {\n\t\tvar root = tokens.matchTokenType(\"IDENTIFIER\");\n\t\tif (root) {\n\t\t\tvar path = [root.value];\n\n\t\t\tvar separator = tokens.matchOpToken(\".\") || tokens.matchOpToken(\":\");\n\t\t\tif (separator) {\n\t\t\t\tdo {\n\t\t\t\t\tpath.push(tokens.requireTokenType(\"IDENTIFIER\", \"NUMBER\").value);\n\t\t\t\t} while (tokens.matchOpToken(separator.value));\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\ttype: \"dotOrColonPath\",\n\t\t\t\tpath: path,\n\t\t\t\tevaluate: function () {\n\t\t\t\t\treturn path.join(separator ? separator.value : \"\");\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n\n\n\t_parser.addGrammarElement(\"eventName\", function (parser, runtime, tokens) {\n\t\tvar token;\n\t\tif ((token = tokens.matchTokenType(\"STRING\"))) {\n\t\t\treturn {\n\t\t\t\tevaluate: function() {\n\t\t\t\t\treturn token.value;\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\n\t\treturn parser.parseElement(\"dotOrColonPath\", tokens);\n\t});\n\n\tfunction parseSendCmd(cmdType, parser, runtime, tokens) {\n\t\tvar eventName = parser.requireElement(\"eventName\", tokens);\n\n\t\tvar details = parser.parseElement(\"namedArgumentList\", tokens);\n\t\tif ((cmdType === \"send\" && tokens.matchToken(\"to\")) ||\n\t\t\t(cmdType === \"trigger\" && tokens.matchToken(\"on\"))) {\n\t\t\tvar toExpr = parser.requireElement(\"expression\", tokens);\n\t\t} else {\n\t\t\tvar toExpr = parser.requireElement(\"implicitMeTarget\", tokens);\n\t\t}\n\n\t\tvar sendCmd = {\n\t\t\teventName: eventName,\n\t\t\tdetails: details,\n\t\t\tto: toExpr,\n\t\t\targs: [toExpr, eventName, details],\n\t\t\top: function (context, to, eventName, details) {\n\t\t\t\truntime.nullCheck(to, toExpr);\n\t\t\t\truntime.forEach(to, function (target) {\n\t\t\t\t\truntime.triggerEvent(target, eventName, details ? details : {});\n\t\t\t\t});\n\t\t\t\treturn runtime.findNext(sendCmd, context);\n\t\t\t},\n\t\t};\n\t\treturn sendCmd;\n\t}\n\n\t_parser.addCommand(\"trigger\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"trigger\")) {\n\t\t\treturn parseSendCmd(\"trigger\", parser, runtime, tokens);\n\t\t}\n\t});\n\n\t_parser.addCommand(\"send\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"send\")) {\n\t\t\treturn parseSendCmd(\"send\", parser, runtime, tokens);\n\t\t}\n\t});\n\n\tvar parseReturnFunction = function (parser, runtime, tokens, returnAValue) {\n\t\tif (returnAValue) {\n\t\t\tif (parser.commandBoundary(tokens.currentToken())) {\n\t\t\t\tparser.raiseParseError(tokens, \"'return' commands must return a value.  If you do not wish to return a value, use 'exit' instead.\");\n\t\t\t} else {\n\t\t\t\tvar value = parser.requireElement(\"expression\", tokens);\n\t\t\t}\n\t\t}\n\n\t\tvar returnCmd = {\n\t\t\tvalue: value,\n\t\t\targs: [value],\n\t\t\top: function (context, value) {\n\t\t\t\tvar resolve = context.meta.resolve;\n\t\t\t\tcontext.meta.returned = true;\n\t\t\t\tcontext.meta.returnValue = value;\n\t\t\t\tif (resolve) {\n\t\t\t\t\tif (value) {\n\t\t\t\t\t\tresolve(value);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tresolve();\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn runtime.HALT;\n\t\t\t},\n\t\t};\n\t\treturn returnCmd;\n\t};\n\n\t_parser.addCommand(\"return\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"return\")) {\n\t\t\treturn parseReturnFunction(parser, runtime, tokens, true);\n\t\t}\n\t});\n\n\t_parser.addCommand(\"exit\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"exit\")) {\n\t\t\treturn parseReturnFunction(parser, runtime, tokens, false);\n\t\t}\n\t});\n\n\t_parser.addCommand(\"halt\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"halt\")) {\n\t\t\tif (tokens.matchToken(\"the\")) {\n\t\t\t\ttokens.requireToken(\"event\");\n\t\t\t\t// optional possessive\n\t\t\t\tif (tokens.matchOpToken(\"'\")) {\n\t\t\t\t\ttokens.requireToken(\"s\");\n\t\t\t\t}\n\t\t\t\tvar keepExecuting = true;\n\t\t\t}\n\t\t\tif (tokens.matchToken(\"bubbling\")) {\n\t\t\t\tvar bubbling = true;\n\t\t\t} else if (tokens.matchToken(\"default\")) {\n\t\t\t\tvar haltDefault = true;\n\t\t\t}\n\t\t\tvar exit = parseReturnFunction(parser, runtime, tokens, false);\n\n\t\t\tvar haltCmd = {\n\t\t\t\tkeepExecuting: true,\n\t\t\t\tbubbling: bubbling,\n\t\t\t\thaltDefault: haltDefault,\n\t\t\t\texit: exit,\n\t\t\t\top: function (ctx) {\n\t\t\t\t\tif (ctx.event) {\n\t\t\t\t\t\tif (bubbling) {\n\t\t\t\t\t\t\tctx.event.stopPropagation();\n\t\t\t\t\t\t} else if (haltDefault) {\n\t\t\t\t\t\t\tctx.event.preventDefault();\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tctx.event.stopPropagation();\n\t\t\t\t\t\t\tctx.event.preventDefault();\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif (keepExecuting) {\n\t\t\t\t\t\t\treturn runtime.findNext(this, ctx);\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\treturn exit;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn haltCmd;\n\t\t}\n\t});\n\n\t_parser.addCommand(\"log\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"log\")) return;\n\t\tvar exprs = [parser.parseElement(\"expression\", tokens)];\n\t\twhile (tokens.matchOpToken(\",\")) {\n\t\t\texprs.push(parser.requireElement(\"expression\", tokens));\n\t\t}\n\t\tif (tokens.matchToken(\"with\")) {\n\t\t\tvar withExpr = parser.requireElement(\"expression\", tokens);\n\t\t}\n\t\tvar logCmd = {\n\t\t\texprs: exprs,\n\t\t\twithExpr: withExpr,\n\t\t\targs: [withExpr, exprs],\n\t\t\top: function (ctx, withExpr, values) {\n\t\t\t\tif (withExpr) {\n\t\t\t\t\twithExpr.apply(null, values);\n\t\t\t\t} else {\n\t\t\t\t\tconsole.log.apply(null, values);\n\t\t\t\t}\n\t\t\t\treturn runtime.findNext(this, ctx);\n\t\t\t},\n\t\t};\n\t\treturn logCmd;\n\t});\n\n\t_parser.addCommand(\"throw\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"throw\")) return;\n\t\tvar expr = parser.requireElement(\"expression\", tokens);\n\t\tvar throwCmd = {\n\t\t\texpr: expr,\n\t\t\targs: [expr],\n\t\t\top: function (ctx, expr) {\n\t\t\t\truntime.registerHyperTrace(ctx, expr);\n\t\t\t\tthrow expr;\n\t\t\t},\n\t\t};\n\t\treturn throwCmd;\n\t});\n\n\tvar parseCallOrGet = function (parser, runtime, tokens) {\n\t\tvar expr = parser.requireElement(\"expression\", tokens);\n\t\tvar callCmd = {\n\t\t\texpr: expr,\n\t\t\targs: [expr],\n\t\t\top: function (context, result) {\n\t\t\t\tcontext.result = result;\n\t\t\t\treturn runtime.findNext(callCmd, context);\n\t\t\t},\n\t\t};\n\t\treturn callCmd;\n\t};\n\t_parser.addCommand(\"call\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"call\")) return;\n\t\tvar call = parseCallOrGet(parser, runtime, tokens);\n\t\tif (call.expr && call.expr.type !== \"functionCall\") {\n\t\t\tparser.raiseParseError(tokens, \"Must be a function invocation\");\n\t\t}\n\t\treturn call;\n\t});\n\t_parser.addCommand(\"get\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"get\")) {\n\t\t\treturn parseCallOrGet(parser, runtime, tokens);\n\t\t}\n\t});\n\n\t_parser.addCommand(\"make\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"make\")) return;\n\t\ttokens.matchToken(\"a\") || tokens.matchToken(\"an\");\n\n\t\tvar expr = parser.requireElement(\"expression\", tokens);\n\n\t\tvar args = [];\n\t\tif (expr.type !== \"queryRef\" && tokens.matchToken(\"from\")) {\n\t\t\tdo {\n\t\t\t\targs.push(parser.requireElement(\"expression\", tokens));\n\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t}\n\n\t\tif (tokens.matchToken(\"called\")) {\n\t\t\tvar name = tokens.requireTokenType(\"IDENTIFIER\").value;\n\t\t}\n\n\t\tvar command;\n\t\tif (expr.type === \"queryRef\") {\n\t\t\tcommand = {\n\t\t\t\top: function (ctx) {\n\t\t\t\t\tvar match,\n\t\t\t\t\t\ttagname = \"div\",\n\t\t\t\t\t\tid,\n\t\t\t\t\t\tclasses = [];\n\t\t\t\t\tvar re = /(?:(^|#|\\.)([^#\\. ]+))/g;\n\t\t\t\t\twhile ((match = re.exec(expr.css))) {\n\t\t\t\t\t\tif (match[1] === \"\") tagname = match[2].trim();\n\t\t\t\t\t\telse if (match[1] === \"#\") id = match[2].trim();\n\t\t\t\t\t\telse classes.push(match[2].trim());\n\t\t\t\t\t}\n\n\t\t\t\t\tvar result = document.createElement(tagname);\n\t\t\t\t\tif (id !== undefined) result.id = id;\n\t\t\t\t\tfor (var i = 0; i < classes.length; i++) {\n\t\t\t\t\t\tvar cls = classes[i];\n\t\t\t\t\t\tresult.classList.add(cls)\n\t\t\t\t\t}\n\n\t\t\t\t\tctx.result = result;\n\t\t\t\t\tif (name) ctx[name] = result;\n\n\t\t\t\t\treturn runtime.findNext(this, ctx);\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn command;\n\t\t} else {\n\t\t\tcommand = {\n\t\t\t\targs: [expr, args],\n\t\t\t\top: function (ctx, expr, args) {\n\t\t\t\t\tctx.result = varargConstructor(expr, args);\n\t\t\t\t\tif (name) ctx[name] = ctx.result;\n\n\t\t\t\t\treturn runtime.findNext(this, ctx);\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn command;\n\t\t}\n\t});\n\n\t_parser.addGrammarElement(\"pseudoCommand\", function (parser, runtime, tokens) {\n\n\t\ttry {\n\t\t\tvar expr = parser.requireElement(\"primaryExpression\", tokens);\n\t\t} finally {\n\t\t\ttokens.popFollow();\n\t\t}\n\t\tif (expr.type !== \"functionCall\" && expr.root.type !== \"symbol\" && expr.root.root != null) {\n\t\t\tparser.raiseParseError(tokens, \"Implicit function calls must start with a simple function\");\n\t\t}\n\n\t\tvar functionName = expr.root.name;\n\n\t\tif (tokens.matchAnyToken(\"the\", \"to\", \"on\", \"with\", \"into\", \"from\", \"at\")) {\n\t\t\tvar target = parser.requireElement(\"expression\", tokens);\n\t\t} else if (tokens.matchToken(\"me\")) {\n\t\t\tvar target = parser.requireElement(\"implicitMeTarget\", tokens);\n\t\t}\n\t\tvar functionArgs = expr.argExressions;\n\n\t\t/** @type {GrammarElement} */\n\t\tvar pseudoCommand = {\n\t\t\ttype: \"pseudoCommand\",\n\t\t\texpr: expr,\n\t\t\targs: [target, functionArgs],\n\t\t\top: function (context, target, args) {\n\t\t\t\tif (target) {\n\t\t\t\t\tvar func = target[functionName];\n\t\t\t\t} else {\n\t\t\t\t\tvar func = runtime.resolveSymbol(functionName, context);\n\t\t\t\t}\n\t\t\t\tif (func.hyperfunc) {\n\t\t\t\t\targs.push(context);\n\t\t\t\t}\n\t\t\t\tvar result = func.apply(target, args);\n\t\t\t\tcontext.result = result;\n\t\t\t\treturn runtime.findNext(pseudoCommand, context);\n\t\t\t},\n\t\t\texecute: function (context) {\n\t\t\t\treturn runtime.unifiedExec(this, context);\n\t\t\t},\n\t\t};\n\n\t\treturn pseudoCommand;\n\t});\n\n\t/**\n\t* @param {ParserObject} parser\n\t* @param {RuntimeObject} runtime\n\t* @param {TokensObject} tokens\n\t* @param {*} target\n\t* @param {*} value\n\t* @returns\n\t*/\n\tvar makeSetter = function (parser, runtime, tokens, target, value) {\n\t\tvar symbolWrite = target.type === \"symbol\";\n\t\tvar attributeWrite = target.type === \"attributeRef\";\n\t\tif (!attributeWrite && !symbolWrite && target.root == null) {\n\t\t\tparser.raiseParseError(tokens, \"Can only put directly into symbols, not references\");\n\t\t}\n\n\t\tvar rootElt = null;\n\t\tvar prop = null;\n\t\tif (symbolWrite) {\n\t\t\t// rootElt is null\n\t\t} else if (attributeWrite) {\n\t\t\trootElt = parser.requireElement(\"implicitMeTarget\", tokens);\n\t\t\tvar attribute = target;\n\t\t} else {\n\t\t\tprop = target.prop ? target.prop.value : null;\n\t\t\tvar attribute = target.attribute;\n\t\t\trootElt = target.root;\n\t\t}\n\n\t\t/** @type {GrammarElement} */\n\t\tvar setCmd = {\n\t\t\ttarget: target,\n\t\t\tsymbolWrite: symbolWrite,\n\t\t\tvalue: value,\n\t\t\targs: [rootElt, value],\n\t\t\top: function (context, root, valueToSet) {\n\t\t\t\tif (symbolWrite) {\n\t\t\t\t\truntime.setSymbol(target.name, context, target.scope, valueToSet);\n\t\t\t\t} else {\n\t\t\t\t\truntime.nullCheck(root, rootElt);\n\t\t\t\t\truntime.implicitLoop(root, function (elt) {\n\t\t\t\t\t\tif (attribute) {\n\t\t\t\t\t\t\tif (valueToSet == null) {\n\t\t\t\t\t\t\t\telt.removeAttribute(attribute.name);\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\telt.setAttribute(attribute.name, valueToSet);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\telt[prop] = valueToSet;\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t},\n\t\t};\n\t\treturn setCmd;\n\t};\n\n\t_parser.addCommand(\"default\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"default\")) return;\n\t\tvar target = parser.requireElement(\"assignableExpression\", tokens);\n\t\ttokens.requireToken(\"to\");\n\n\t\tvar value = parser.requireElement(\"expression\", tokens);\n\n\t\t/** @type {GrammarElement} */\n\t\tvar setter = makeSetter(parser, runtime, tokens, target, value);\n\t\tvar defaultCmd = {\n\t\t\ttarget: target,\n\t\t\tvalue: value,\n\t\t\tsetter: setter,\n\t\t\targs: [target],\n\t\t\top: function (context, target) {\n\t\t\t\tif (target) {\n\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t} else {\n\t\t\t\t\treturn setter;\n\t\t\t\t}\n\t\t\t},\n\t\t};\n\t\tsetter.parent = defaultCmd;\n\t\treturn defaultCmd;\n\t});\n\n\t_parser.addCommand(\"set\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"set\")) return;\n\t\tif (tokens.currentToken().type === \"L_BRACE\") {\n\t\t\tvar obj = parser.requireElement(\"objectLiteral\", tokens);\n\t\t\ttokens.requireToken(\"on\");\n\t\t\tvar target = parser.requireElement(\"expression\", tokens);\n\n\t\t\tvar command = {\n\t\t\t\tobjectLiteral: obj,\n\t\t\t\ttarget: target,\n\t\t\t\targs: [obj, target],\n\t\t\t\top: function (ctx, obj, target) {\n\t\t\t\t\tmergeObjects(target, obj);\n\t\t\t\t\treturn runtime.findNext(this, ctx);\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn command;\n\t\t}\n\n\t\ttry {\n\t\t\ttokens.pushFollow(\"to\");\n\t\t\tvar target = parser.requireElement(\"assignableExpression\", tokens);\n\t\t} finally {\n\t\t\ttokens.popFollow();\n\t\t}\n\t\ttokens.requireToken(\"to\");\n\t\tvar value = parser.requireElement(\"expression\", tokens);\n\t\treturn makeSetter(parser, runtime, tokens, target, value);\n\t});\n\n\t_parser.addCommand(\"if\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"if\")) return;\n\t\tvar expr = parser.requireElement(\"expression\", tokens);\n\t\ttokens.matchToken(\"then\"); // optional 'then'\n\t\tvar trueBranch = parser.parseElement(\"commandList\", tokens);\n\t\tif (tokens.matchToken(\"else\") || tokens.matchToken(\"otherwise\")) {\n\t\t\tvar falseBranch = parser.parseElement(\"commandList\", tokens);\n\t\t}\n\t\tif (tokens.hasMore()) {\n\t\t\ttokens.requireToken(\"end\");\n\t\t}\n\n\t\t/** @type {GrammarElement} */\n\t\tvar ifCmd = {\n\t\t\texpr: expr,\n\t\t\ttrueBranch: trueBranch,\n\t\t\tfalseBranch: falseBranch,\n\t\t\targs: [expr],\n\t\t\top: function (context, exprValue) {\n\t\t\t\tif (exprValue) {\n\t\t\t\t\treturn trueBranch;\n\t\t\t\t} else if (falseBranch) {\n\t\t\t\t\treturn falseBranch;\n\t\t\t\t} else {\n\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t}\n\t\t\t},\n\t\t};\n\t\tparser.setParent(trueBranch, ifCmd);\n\t\tparser.setParent(falseBranch, ifCmd);\n\t\treturn ifCmd;\n\t});\n\n\tvar parseRepeatExpression = function (parser, tokens, runtime, startedWithForToken) {\n\t\tvar innerStartToken = tokens.currentToken();\n\t\tvar identifier;\n\t\tif (tokens.matchToken(\"for\") || startedWithForToken) {\n\t\t\tvar identifierToken = tokens.requireTokenType(\"IDENTIFIER\");\n\t\t\tidentifier = identifierToken.value;\n\t\t\ttokens.requireToken(\"in\");\n\t\t\tvar expression = parser.requireElement(\"expression\", tokens);\n\t\t} else if (tokens.matchToken(\"in\")) {\n\t\t\tidentifier = \"it\";\n\t\t\tvar expression = parser.requireElement(\"expression\", tokens);\n\t\t} else if (tokens.matchToken(\"while\")) {\n\t\t\tvar whileExpr = parser.requireElement(\"expression\", tokens);\n\t\t} else if (tokens.matchToken(\"until\")) {\n\t\t\tvar isUntil = true;\n\t\t\tif (tokens.matchToken(\"event\")) {\n\t\t\t\tvar evt = _parser.requireElement(\"dotOrColonPath\", tokens, \"Expected event name\");\n\t\t\t\tif (tokens.matchToken(\"from\")) {\n\t\t\t\t\tvar on = parser.requireElement(\"expression\", tokens);\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tvar whileExpr = parser.requireElement(\"expression\", tokens);\n\t\t\t}\n\t\t} else {\n\t\t\tif (!parser.commandBoundary(tokens.currentToken()) &&\n\t\t\t    tokens.currentToken().value !== 'forever') {\n\t\t\t\tvar times = parser.requireElement(\"expression\", tokens);\n\t\t\t\ttokens.requireToken(\"times\");\n\t\t\t} else {\n\t\t\t\ttokens.matchToken(\"forever\"); // consume optional forever\n\t\t\t\tvar forever = true;\n\t\t\t}\n\t\t}\n\n\t\tif (tokens.matchToken(\"index\")) {\n\t\t\tvar identifierToken = tokens.requireTokenType(\"IDENTIFIER\");\n\t\t\tvar indexIdentifier = identifierToken.value;\n\t\t}\n\n\t\tvar loop = parser.parseElement(\"commandList\", tokens);\n\t\tif (loop && evt) {\n\t\t\t// if this is an event based loop, wait a tick at the end of the loop so that\n\t\t\t// events have a chance to trigger in the loop condition o_O)))\n\t\t\tvar last = loop;\n\t\t\twhile (last.next) {\n\t\t\t\tlast = last.next;\n\t\t\t}\n\t\t\tvar waitATick = {\n\t\t\t\ttype: \"waitATick\",\n\t\t\t\top: function () {\n\t\t\t\t\treturn new Promise(function (resolve) {\n\t\t\t\t\t\tsetTimeout(function () {\n\t\t\t\t\t\t\tresolve(runtime.findNext(waitATick));\n\t\t\t\t\t\t}, 0);\n\t\t\t\t\t});\n\t\t\t\t},\n\t\t\t};\n\t\t\tlast.next = waitATick;\n\t\t}\n\t\tif (tokens.hasMore()) {\n\t\t\ttokens.requireToken(\"end\");\n\t\t}\n\n\t\tif (identifier == null) {\n\t\t\tidentifier = \"_implicit_repeat_\" + innerStartToken.start;\n\t\t\tvar slot = identifier;\n\t\t} else {\n\t\t\tvar slot = identifier + \"_\" + innerStartToken.start;\n\t\t}\n\n\t\tvar repeatCmd = {\n\t\t\tidentifier: identifier,\n\t\t\tindexIdentifier: indexIdentifier,\n\t\t\tslot: slot,\n\t\t\texpression: expression,\n\t\t\tforever: forever,\n\t\t\ttimes: times,\n\t\t\tuntil: isUntil,\n\t\t\tevent: evt,\n\t\t\ton: on,\n\t\t\twhileExpr: whileExpr,\n\t\t\tresolveNext: function () {\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\tloop: loop,\n\t\t\targs: [whileExpr, times],\n\t\t\top: function (context, whileValue, times) {\n\t\t\t\tvar iteratorInfo = context.meta.iterators[slot];\n\t\t\t\tvar keepLooping = false;\n\t\t\t\tvar loopVal = null;\n\t\t\t\tif (this.forever) {\n\t\t\t\t\tkeepLooping = true;\n\t\t\t\t} else if (this.until) {\n\t\t\t\t\tif (evt) {\n\t\t\t\t\t\tkeepLooping = context.meta.iterators[slot].eventFired === false;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tkeepLooping = whileValue !== true;\n\t\t\t\t\t}\n\t\t\t\t} else if (whileExpr) {\n\t\t\t\t\tkeepLooping = whileValue;\n\t\t\t\t} else if (times) {\n\t\t\t\t\tkeepLooping = iteratorInfo.index < times;\n\t\t\t\t} else {\n\t\t\t\t\tvar nextValFromIterator = iteratorInfo.iterator.next();\n\t\t\t\t\tkeepLooping = !nextValFromIterator.done;\n\t\t\t\t\tloopVal = nextValFromIterator.value;\n\t\t\t\t}\n\n\t\t\t\tif (keepLooping) {\n\t\t\t\t\tif (iteratorInfo.value) {\n\t\t\t\t\t\tcontext.result = context[identifier] = loopVal;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tcontext.result = iteratorInfo.index;\n\t\t\t\t\t}\n\t\t\t\t\tif (indexIdentifier) {\n\t\t\t\t\t\tcontext[indexIdentifier] = iteratorInfo.index;\n\t\t\t\t\t}\n\t\t\t\t\titeratorInfo.index++;\n\t\t\t\t\treturn loop;\n\t\t\t\t} else {\n\t\t\t\t\tcontext.meta.iterators[slot] = null;\n\t\t\t\t\treturn runtime.findNext(this.parent, context);\n\t\t\t\t}\n\t\t\t},\n\t\t};\n\t\tparser.setParent(loop, repeatCmd);\n\t\tvar repeatInit = {\n\t\t\tname: \"repeatInit\",\n\t\t\targs: [expression, evt, on],\n\t\t\top: function (context, value, event, on) {\n\t\t\t\tvar iteratorInfo = {\n\t\t\t\t\tindex: 0,\n\t\t\t\t\tvalue: value,\n\t\t\t\t\teventFired: false,\n\t\t\t\t};\n\t\t\t\tcontext.meta.iterators[slot] = iteratorInfo;\n\t\t\t\tif (value && value[Symbol.iterator]) {\n\t\t\t\t\titeratorInfo.iterator = value[Symbol.iterator]();\n\t\t\t\t}\n\t\t\t\tif (evt) {\n\t\t\t\t\tvar target = on || context.me;\n\t\t\t\t\ttarget.addEventListener(\n\t\t\t\t\t\tevent,\n\t\t\t\t\t\tfunction (e) {\n\t\t\t\t\t\t\tcontext.meta.iterators[slot].eventFired = true;\n\t\t\t\t\t\t},\n\t\t\t\t\t\t{ once: true }\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t\treturn repeatCmd; // continue to loop\n\t\t\t},\n\t\t\texecute: function (context) {\n\t\t\t\treturn runtime.unifiedExec(this, context);\n\t\t\t},\n\t\t};\n\t\tparser.setParent(repeatCmd, repeatInit);\n\t\treturn repeatInit;\n\t};\n\n\t_parser.addCommand(\"repeat\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"repeat\")) {\n\t\t\treturn parseRepeatExpression(parser, tokens, runtime, false);\n\t\t}\n\t});\n\n\t_parser.addCommand(\"for\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"for\")) {\n\t\t\treturn parseRepeatExpression(parser, tokens, runtime, true);\n\t\t}\n\t});\n\n  _parser.addCommand(\"continue\", function (parser, runtime, tokens) {\n\n    if (!tokens.matchToken(\"continue\")) return;\n\n    var command = {\n      op: function (context) {\n\n        // scan for the closest repeat statement\n        for (var parent = this.parent ; true ; parent = parent.parent) {\n\n          if (parent == undefined) {\n            parser.raiseParseError(tokens, \"Command `continue` cannot be used outside of a `repeat` loop.\")\n          }\n          if (parent.loop != undefined) {\n            return parent.resolveNext(context)\n          }\n        }\n      }\n    };\n    return command;\n  });\n\n\t_parser.addGrammarElement(\"stringLike\", function (parser, runtime, tokens) {\n\t\treturn _parser.parseAnyOf([\"string\", \"nakedString\"], tokens);\n\t});\n\n\t_parser.addCommand(\"append\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"append\")) return;\n\t\tvar targetExpr = null;\n\n\t\tvar value = parser.requireElement(\"expression\", tokens);\n\n\t\tvar implicitResultSymbol = {\n\t\t\ttype: \"symbol\",\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.resolveSymbol(\"result\", context);\n\t\t\t},\n\t\t};\n\n\t\tif (tokens.matchToken(\"to\")) {\n\t\t\ttargetExpr = parser.requireElement(\"expression\", tokens);\n\t\t} else {\n\t\t\ttargetExpr = implicitResultSymbol;\n\t\t}\n\n\t\tvar setter = null;\n\t\tif (targetExpr.type === \"symbol\" || targetExpr.type === \"attributeRef\" || targetExpr.root != null) {\n\t\t\tsetter = makeSetter(parser, runtime, tokens, targetExpr, implicitResultSymbol);\n\t\t}\n\n\t\tvar command = {\n\t\t\tvalue: value,\n\t\t\ttarget: targetExpr,\n\t\t\targs: [targetExpr, value],\n\t\t\top: function (context, target, value) {\n\t\t\t\tif (Array.isArray(target)) {\n\t\t\t\t\ttarget.push(value);\n\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t} else if (target instanceof Element) {\n\t\t\t\t\ttarget.innerHTML += value;\n\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t} else if(setter) {\n\t\t\t\t\tcontext.result = (target || \"\") + value;\n\t\t\t\t\treturn setter;\n\t\t\t\t} else {\n\t\t\t\t\tthrow Error(\"Unable to append a value!\")\n\t\t\t\t}\n\t\t\t},\n\t\t\texecute: function (context) {\n\t\t\t\treturn runtime.unifiedExec(this, context/*, value, target*/);\n\t\t\t},\n\t\t};\n\n\t\tif (setter != null) {\n\t\t\tsetter.parent = command;\n\t\t}\n\n\t\treturn command;\n\t});\n\n\t_parser.addCommand(\"increment\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"increment\")) return;\n\t\tvar amount;\n\n\t\t// This is optional.  Defaults to \"result\"\n\t\tvar target = parser.parseElement(\"assignableExpression\", tokens);\n\n\t\t// This is optional. Defaults to 1.\n\t\tif (tokens.matchToken(\"by\")) {\n\t\t\tamount = parser.requireElement(\"expression\", tokens);\n\t\t}\n\n\t\tvar implicitIncrementOp = {\n\t\t\ttype: \"implicitIncrementOp\",\n\t\t\ttarget: target,\n\t\t\targs: [target, amount],\n\t\t\top: function (context, targetValue, amount) {\n\t\t\t\ttargetValue = targetValue ? parseFloat(targetValue) : 0;\n\t\t\t\tamount = amount ? parseFloat(amount) : 1;\n\t\t\t\tvar newValue = targetValue + amount;\n\t\t\t\tcontext.result = newValue;\n\t\t\t\treturn newValue;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t}\n\t\t};\n\n\t\treturn makeSetter(parser, runtime, tokens, target, implicitIncrementOp);\n\t});\n\n\t_parser.addCommand(\"decrement\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"decrement\")) return;\n\t\tvar amount;\n\n\t\t// This is optional.  Defaults to \"result\"\n\t\tvar target = parser.parseElement(\"assignableExpression\", tokens);\n\n\t\t// This is optional. Defaults to 1.\n\t\tif (tokens.matchToken(\"by\")) {\n\t\t\tamount = parser.requireElement(\"expression\", tokens);\n\t\t}\n\n\t\tvar implicitDecrementOp = {\n\t\t\ttype: \"implicitDecrementOp\",\n\t\t\ttarget: target,\n\t\t\targs: [target, amount],\n\t\t\top: function (context, targetValue, amount) {\n\t\t\t\ttargetValue = targetValue ? parseFloat(targetValue) : 0;\n\t\t\t\tamount = amount ? parseFloat(amount) : 1;\n\t\t\t\tvar newValue = targetValue - amount;\n\t\t\t\tcontext.result = newValue;\n\t\t\t\treturn newValue;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t}\n\t\t};\n\n\t\treturn makeSetter(parser, runtime, tokens, target, implicitDecrementOp);\n\t});\n\n\t_parser.addGrammarElement(\"fetchArgumentList\", function (parser, runtime, tokens) {\n\t\tvar fields = [];\n\t\tvar valueExpressions = [];\n\t\tif (tokens.currentToken().type === \"IDENTIFIER\") {\n\t\t\tdo {\n\t\t\t\tvar name = tokens.requireTokenType(\"IDENTIFIER\");\n\t\t\t\ttokens.requireOpToken(\":\");\n\t\t\t\tif (name.value === \"timeout\") {\n\t\t\t\t\tvar value = parser.requireElement(\"timeExpression\", tokens);\n\t\t\t\t} else {\n\t\t\t\t\tvar value = parser.requireElement(\"expression\", tokens);\n\t\t\t\t}\n\t\t\t\tvalueExpressions.push(value);\n\t\t\t\tfields.push({ name: name, value: value });\n\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t}\n\t\treturn {\n\t\t\ttype: \"fetchArgumentList\",\n\t\t\tfields: fields,\n\t\t\targs: [valueExpressions],\n\t\t\top: function (context, values) {\n\t\t\t\tvar returnVal = { _namedArgList_: true };\n\t\t\t\tfor (var i = 0; i < values.length; i++) {\n\t\t\t\t\tvar field = fields[i];\n\t\t\t\t\treturnVal[field.name.value] = values[i];\n\t\t\t\t}\n\t\t\t\treturn returnVal;\n\t\t\t},\n\t\t\tevaluate: function (context) {\n\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t},\n\t\t};\n\t});\n\n\n\t_parser.addCommand(\"fetch\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"fetch\")) return;\n\t\tvar url = parser.requireElement(\"stringLike\", tokens);\n\n\t\tif (tokens.matchToken(\"with\")) {\n\t\t\tvar args = parser.parseElement(\"fetchArgumentList\", tokens);\n\t\t} else {\n\t\t\tvar args = parser.parseElement(\"objectLiteral\", tokens);\n\t\t}\n\n\t\tvar type = \"text\";\n\t\tvar conversion;\n\t\tif (tokens.matchToken(\"as\")) {\n\t\t\ttokens.matchToken(\"a\") || tokens.matchToken(\"an\");\n\t\t\tif (tokens.matchToken(\"json\") || tokens.matchToken(\"Object\")) {\n\t\t\t\ttype = \"json\";\n\t\t\t} else if (tokens.matchToken(\"response\")) {\n\t\t\t\ttype = \"response\";\n\t\t\t} else if (tokens.matchToken(\"html\")) {\n\t\t\t\ttype = \"html\";\n\t\t\t} else if (tokens.matchToken(\"text\")) {\n\t\t\t\t// default, ignore\n\t\t\t} else {\n\t\t\t\tconversion = parser.requireElement(\"dotOrColonPath\", tokens).evaluate();\n\t\t\t}\n\t\t}\n\n\t\t/** @type {GrammarElement} */\n\t\tvar fetchCmd = {\n\t\t\turl: url,\n\t\t\targExpressions: args,\n\t\t\targs: [url, args],\n\t\t\top: function (context, url, args) {\n\t\t\t\tvar detail = args || {};\n\t\t\t\tdetail[\"sentBy\"] = context.me;\n\t\t\t\tdetail[\"headers\"] = detail[\"headers\"] || {}\n\t\t\t\tvar abortController = new AbortController();\n\t\t\t\tlet abortListener = context.me.addEventListener('fetch:abort', function(){\n\t\t\t\t\tabortController.abort();\n\t\t\t\t}, {once: true});\n\t\t\t\tdetail['signal'] = abortController.signal;\n\t\t\t\truntime.triggerEvent(context.me, \"hyperscript:beforeFetch\", detail);\n\t\t\t\truntime.triggerEvent(context.me, \"fetch:beforeRequest\", detail);\n\t\t\t\targs = detail;\n\t\t\t\tconsole.log(args);\n\t\t\t\tvar finished = false;\n\t\t\t\tif (args.timeout) {\n\t\t\t\t\tsetTimeout(function () {\n\t\t\t\t\t\tif (!finished) {\n\t\t\t\t\t\t\tconsole.log(\"Aborting!\");\n\t\t\t\t\t\t\tabortController.abort();\n\t\t\t\t\t\t}\n\t\t\t\t\t}, args.timeout);\n\t\t\t\t}\n\t\t\t\treturn fetch(url, args)\n\t\t\t\t\t.then(function (resp) {\n\t\t\t\t\t\tlet resultDetails = {response:resp};\n\t\t\t\t\t\truntime.triggerEvent(context.me, \"fetch:afterResponse\", resultDetails);\n\t\t\t\t\t\tresp = resultDetails.response;\n\n\t\t\t\t\t\tif (type === \"response\") {\n\t\t\t\t\t\t\tcontext.result = resp;\n\t\t\t\t\t\t\truntime.triggerEvent(context.me, \"fetch:afterRequest\", {result:resp});\n\t\t\t\t\t\t\tfinished = true;\n\t\t\t\t\t\t\treturn runtime.findNext(fetchCmd, context);\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif (type === \"json\") {\n\t\t\t\t\t\t\treturn resp.json().then(function (result) {\n\t\t\t\t\t\t\t\tcontext.result = result;\n\t\t\t\t\t\t\t\truntime.triggerEvent(context.me, \"fetch:afterRequest\", {result});\n\t\t\t\t\t\t\t\tfinished = true;\n\t\t\t\t\t\t\t\treturn runtime.findNext(fetchCmd, context);\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t}\n\t\t\t\t\t\treturn resp.text().then(function (result) {\n\t\t\t\t\t\t\tif (conversion) result = runtime.convertValue(result, conversion);\n\n\t\t\t\t\t\t\tif (type === \"html\") result = runtime.convertValue(result, \"Fragment\");\n\n\t\t\t\t\t\t\tcontext.result = result;\n\t\t\t\t\t\t\truntime.triggerEvent(context.me, \"fetch:afterRequest\", {result});\n\t\t\t\t\t\t\tfinished = true;\n\t\t\t\t\t\t\treturn runtime.findNext(fetchCmd, context);\n\t\t\t\t\t\t});\n\t\t\t\t\t})\n\t\t\t\t\t.catch(function (reason) {\n\t\t\t\t\t\tconsole.log(reason);\n\t\t\t\t\t\truntime.triggerEvent(context.me, \"fetch:error\", {\n\t\t\t\t\t\t\treason: reason,\n\t\t\t\t\t\t});\n\t\t\t\t\t\tthrow reason;\n\t\t\t\t\t}).finally(function(){\n\t\t\t\t\t\tcontext.me.removeEventListener('fetch:abort', abortListener);\n\t\t\t\t\t});\n\t\t\t},\n\t\t};\n\t\treturn fetchCmd;\n\t});\n}\n\n//====================================================================\n// Initialization\n//====================================================================\nfunction ready(fn) {\n\tif (document.readyState !== \"loading\") {\n\t\tsetTimeout(fn);\n\t} else {\n\t\tdocument.addEventListener(\"DOMContentLoaded\", fn);\n\t}\n}\n\nfunction getMetaConfig() {\n\t/** @type {HTMLMetaElement} */\n\tvar element = document.querySelector('meta[name=\"htmx-config\"]');\n\tif (element) {\n\t\treturn parseJSON(element.content);\n\t} else {\n\t\treturn null;\n\t}\n}\n\nfunction mergeMetaConfig() {\n\tvar metaConfig = getMetaConfig();\n\tif (metaConfig) {\n\t\t_hyperscript.config = mergeObjects(_hyperscript.config, metaConfig);\n\t}\n}\n\nif (\"document\" in globalScope) {\n\t/** @type {HTMLScriptElement[]} */\n\tvar scripts = Array.from(document.querySelectorAll(\"script[type='text/hyperscript'][src]\"))\n\tPromise.all(\n\t\tscripts.map(function (script) {\n\t\t\treturn fetch(script.src)\n\t\t\t\t.then(function (res) {\n\t\t\t\t\treturn res.text();\n\t\t\t\t})\n\t\t\t\t.then(function (code) {\n\t\t\t\t\treturn _runtime.evaluate(code);\n\t\t\t\t});\n\t\t})\n\t).then(function () {\n\t\tready(function () {\n\t\t\tmergeMetaConfig();\n\t\t\t_runtime.processNode(document.documentElement);\n\t\t\tdocument.addEventListener(\"htmx:load\", function (/** @type {CustomEvent} */ evt) {\n\t\t\t\t_runtime.processNode(evt.detail.elt);\n\t\t\t});\n\t\t});\n\t});\n}\n\n//====================================================================\n// API\n//====================================================================\n/** @type {HyperscriptObject} */\nexport default _hyperscript = mergeObjects(\n\tfunction (str, ctx) {\n\t\treturn _runtime.evaluate(str, ctx); //OK\n\t},\n\t{\n\t\tinternals: {\n\t\t\tlexer: _lexer,\n\t\t\tparser: _parser,\n\t\t\truntime: _runtime,\n\t\t},\n\t\tElementCollection: ElementCollection,\n\t\taddFeature: function (keyword, definition) {\n\t\t\t_parser.addFeature(keyword, definition);\n\t\t},\n\t\taddCommand: function (keyword, definition) {\n\t\t\t_parser.addCommand(keyword, definition);\n\t\t},\n\t\taddLeafExpression: function (name, definition) {\n\t\t\t_parser.addLeafExpression(name, definition);\n\t\t},\n\t\taddIndirectExpression: function (name, definition) {\n\t\t\t_parser.addIndirectExpression(name, definition);\n\t\t},\n\t\tevaluate: _runtime.evaluate.bind(_runtime),\n\t\tparse: _runtime.parse.bind(_runtime),\n\t\tprocessNode: _runtime.processNode.bind(_runtime),\n\t\tconfig: {\n\t\t\tattributes: \"_, script, data-script\",\n\t\t\tdefaultTransition: \"all 500ms ease-in\",\n\t\t\tdisableSelector: \"[disable-scripting], [data-disable-scripting]\",\n\t\t\tconversions: CONVERSIONS,\n\t\t},\n\t}\n);\n","\nimport { mergeObjects } from \"../utils.js\";\n\nfunction genUUID() {\n\treturn \"xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx\".replace(/[xy]/g, function (c) {\n\t\tvar r = (Math.random() * 16) | 0,\n\t\tv = c == \"x\" ? r : (r & 0x3) | 0x8;\n\t\treturn v.toString(16);\n\t});\n}\n\nfunction createSocket(url) {\n\treturn new WebSocket(url.evaluate());\n}\n\n/**\n * @param {HyperscriptObject} _hyperscript\n */\nexport default _hyperscript => {\n\n\t/** @type {(string | symbol)[]} */\n\tvar PROXY_BLACKLIST = [\"then\", \"catch\", \"length\", \"asyncWrapper\", \"toJSON\"];\n\n\t_hyperscript.addFeature(\"socket\", function (parser, runtime, tokens) {\n\t\tfunction getProxy(timeout) {\n\t\t\treturn new Proxy(\n\t\t\t\t{},\n\t\t\t\t{\n\t\t\t\t\tget: function (obj, property) {\n\t\t\t\t\t\tif (PROXY_BLACKLIST.indexOf(property) >= 0) {\n\t\t\t\t\t\t\treturn null;\n\t\t\t\t\t\t} else if (property === \"noTimeout\") {\n\t\t\t\t\t\t\treturn getProxy(-1);\n\t\t\t\t\t\t} else if (property === \"timeout\") {\n\t\t\t\t\t\t\treturn function (i) {\n\t\t\t\t\t\t\t\treturn getProxy(parseInt(i));\n\t\t\t\t\t\t\t};\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\treturn function () {\n\t\t\t\t\t\t\t\tvar uuid = genUUID();\n\t\t\t\t\t\t\t\tvar args = [];\n\t\t\t\t\t\t\t\tfor (var i = 0; i < arguments.length; i++) {\n\t\t\t\t\t\t\t\t\targs.push(arguments[i]);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tvar rpcInfo = {\n\t\t\t\t\t\t\t\t\tiid: uuid,\n\t\t\t\t\t\t\t\t\tfunction: property,\n\t\t\t\t\t\t\t\t\targs: args,\n\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t\tsocket = socket ? socket : createSocket(url); //recreate socket if needed\n\t\t\t\t\t\t\t\tsocket.send(JSON.stringify(rpcInfo));\n\n\t\t\t\t\t\t\t\tvar promise = new Promise(function (resolve, reject) {\n\t\t\t\t\t\t\t\t\tpromises[uuid] = {\n\t\t\t\t\t\t\t\t\t\tresolve: resolve,\n\t\t\t\t\t\t\t\t\t\treject: reject,\n\t\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t\t});\n\n\t\t\t\t\t\t\t\tif (timeout >= 0) {\n\t\t\t\t\t\t\t\t\tsetTimeout(function () {\n\t\t\t\t\t\t\t\t\t\tif (promises[uuid]) {\n\t\t\t\t\t\t\t\t\t\t\tpromises[uuid].reject(\"Timed out\");\n\t\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t\tdelete promises[uuid];\n\t\t\t\t\t\t\t\t\t}, timeout); // TODO configurable?\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\treturn promise;\n\t\t\t\t\t\t\t};\n\t\t\t\t\t\t}\n\t\t\t\t\t},\n\t\t\t\t}\n\t\t\t);\n\t\t}\n\n\t\tif (tokens.matchToken(\"socket\")) {\n\t\t\tvar name = parser.requireElement(\"dotOrColonPath\", tokens);\n\t\t\tvar qualifiedName = name.evaluate();\n\t\t\tvar nameSpace = qualifiedName.split(\".\");\n\t\t\tvar socketName = nameSpace.pop();\n\n\t\t\tvar promises = {};\n\t\t\tvar url = parser.requireElement(\"stringLike\", tokens);\n\n\t\t\tvar defaultTimeout = 10000;\n\t\t\tif (tokens.matchToken(\"with\")) {\n\t\t\t\ttokens.requireToken(\"timeout\");\n\t\t\t\tdefaultTimeout = parser.requireElement(\"timeExpression\", tokens).evaluate();\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"on\")) {\n\t\t\t\ttokens.requireToken(\"message\");\n\t\t\t\tif (tokens.matchToken(\"as\")) {\n\t\t\t\t\ttokens.requireToken(\"json\");\n\t\t\t\t\tvar jsonMessages = true;\n\t\t\t\t}\n\t\t\t\tvar messageHandler = parser.requireElement(\"commandList\", tokens);\n\t\t\t\tvar implicitReturn = {\n\t\t\t\t\ttype: \"implicitReturn\",\n\t\t\t\t\top: function (context) {\n\t\t\t\t\t\treturn runtime.HALT;\n\t\t\t\t\t},\n\t\t\t\t\texecute: function (context) {\n\t\t\t\t\t\t// do nothing\n\t\t\t\t\t},\n\t\t\t\t};\n\t\t\t\tvar end = messageHandler;\n\t\t\t\twhile (end.next) {\n\t\t\t\t\tend = end.next;\n\t\t\t\t}\n\t\t\t\tend.next = implicitReturn;\n\t\t\t\t// TODO set parent?\n\t\t\t\t// parser.setParent(implicitReturn, initFeature);\n\t\t\t}\n\n\t\t\tvar socket = createSocket(url);\n\t\t\tvar rpcProxy = getProxy(defaultTimeout);\n\n\t\t\tvar socketObject = {\n\t\t\t\traw: socket,\n\t\t\t\tdispatchEvent: function (evt) {\n\t\t\t\t\tvar details = evt.detail;\n\t\t\t\t\t// remove hyperscript internals\n\t\t\t\t\tdelete details.sentBy;\n\t\t\t\t\tdelete details._namedArgList_;\n\t\t\t\t\tsocket.send(JSON.stringify(mergeObjects({ type: evt.type }, details)));\n\t\t\t\t},\n\t\t\t\trpc: rpcProxy,\n\t\t\t};\n\n\t\t\tvar socketFeature = {\n\t\t\t\tname: socketName,\n\t\t\t\tsocket: socketObject,\n\t\t\t\tinstall: function (target) {\n\t\t\t\t\truntime.assignToNamespace(target, nameSpace, socketName, socketObject);\n\t\t\t\t},\n\t\t\t};\n\n\t\t\tsocket.onmessage = function (evt) {\n\t\t\t\tvar data = evt.data;\n\t\t\t\ttry {\n\t\t\t\t\tvar dataAsJson = JSON.parse(data);\n\t\t\t\t} catch (e) {\n\t\t\t\t\t// not JSON\n\t\t\t\t}\n\n\t\t\t\t// RPC reply\n\t\t\t\tif (dataAsJson && dataAsJson.iid) {\n\t\t\t\t\tif (dataAsJson.throw) {\n\t\t\t\t\t\tpromises[dataAsJson.iid].reject(dataAsJson.throw);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tpromises[dataAsJson.iid].resolve(dataAsJson.return);\n\t\t\t\t\t}\n\t\t\t\t\tdelete promises[dataAsJson.iid];\n\t\t\t\t}\n\n\t\t\t\tif (messageHandler) {\n\t\t\t\t\tvar context = runtime.makeContext(socketObject, socketFeature, socketObject);\n\t\t\t\t\tif (jsonMessages) {\n\t\t\t\t\t\tif (dataAsJson) {\n\t\t\t\t\t\t\tcontext.message = dataAsJson;\n\t\t\t\t\t\t\tcontext.result = dataAsJson;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tthrow \"Received non-JSON message from socket: \" + data;\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tcontext.message = data;\n\t\t\t\t\t\tcontext.result = data;\n\t\t\t\t\t}\n\t\t\t\t\tmessageHandler.execute(context);\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// clear socket on close to be recreated\n\t\t\tsocket.addEventListener(\"close\", function (e) {\n\t\t\t\tsocket = null;\n\t\t\t});\n\n\t\t\treturn socketFeature;\n\t\t}\n\t});\n}\n","\nfunction compileTemplate(template) {\n\treturn template.replace(/(?:^|\\n)([^@]*)@?/gm, function (match, p1) {\n\t\tvar templateStr = (\" \" + p1).replace(/([^\\\\])\\$\\{/g, \"$1$${escape html \").substring(1);\n\t\treturn \"\\ncall __ht_template_result.push(`\" + templateStr + \"`)\\n\";\n\t});\n}\n\n/**\n * @param {HyperscriptObject} _hyperscript\n */\nexport default _hyperscript => {\n\n\tfunction renderTemplate(template, ctx) {\n\t\tvar buf = [];\n\t\t_hyperscript.evaluate(template, Object.assign({ __ht_template_result: buf }, ctx));\n\t\treturn buf.join(\"\");\n\t}\n\n\t_hyperscript.addCommand(\"render\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"render\")) return;\n\t\tvar template_ = parser.requireElement(\"expression\", tokens);\n\t\tvar templateArgs = {};\n\t\tif (tokens.matchToken(\"with\")) {\n\t\t\ttemplateArgs = parser.parseElement(\"namedArgumentList\", tokens);\n\t\t}\n\t\treturn {\n\t\t\targs: [template_, templateArgs],\n\t\t\top: function (ctx, template, templateArgs) {\n\t\t\t\tif (!(template instanceof Element)) throw new Error(template_.sourceFor() + \" is not an element\");\n\t\t\t\tconsole.log(compileTemplate(template.innerHTML));\n\t\t\t\tctx.result = renderTemplate(compileTemplate(template.innerHTML), templateArgs);\n\t\t\t\treturn runtime.findNext(this, ctx);\n\t\t\t},\n\t\t};\n\t});\n\n\tfunction escapeHTML(html) {\n\t\treturn String(html)\n\t\t\t.replace(/&/g, \"&amp;\")\n\t\t\t.replace(/</g, \"&lt;\")\n\t\t\t.replace(/>/g, \"&gt;\")\n\t\t\t.replace(/\\x22/g, \"&quot;\")\n\t\t\t.replace(/\\x27/g, \"&#039;\");\n\t}\n\n\t_hyperscript.addLeafExpression(\"escape\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"escape\")) return;\n\t\tvar escapeType = tokens.matchTokenType(\"IDENTIFIER\").value;\n\n\t\t// hidden! for use in templates\n\t\tvar unescaped = tokens.matchToken(\"unescaped\");\n\n\t\tvar arg = parser.requireElement(\"expression\", tokens);\n\n\t\treturn {\n\t\t\targs: [arg],\n\t\t\top: function (ctx, arg) {\n\t\t\t\tif (unescaped) return arg;\n\t\t\t\tif (arg === undefined) return \"\";\n\t\t\t\tswitch (escapeType) {\n\t\t\t\t\tcase \"html\":\n\t\t\t\t\t\treturn escapeHTML(arg);\n\t\t\t\t\tdefault:\n\t\t\t\t\t\tthrow new Error(\"Unknown escape: \" + escapeType);\n\t\t\t\t}\n\t\t\t},\n\t\t\tevaluate: function (ctx) {\n\t\t\t\treturn runtime.unifiedEval(this, ctx);\n\t\t\t},\n\t\t};\n\t});\n}\n","///=========================================================================\n/// This module provides the core web functionality for hyperscript\n///=========================================================================\n\nimport { mergeObjects } from \"./utils.js\"\n\n/**\n * @param {HyperscriptObject} _hyperscript\n */\nexport default _hyperscript => {\n\t_hyperscript.addCommand(\"settle\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"settle\")) {\n\t\t\tif (!parser.commandBoundary(tokens.currentToken())) {\n\t\t\t\tvar onExpr = parser.requireElement(\"expression\", tokens);\n\t\t\t} else {\n\t\t\t\tvar onExpr = parser.requireElement(\"implicitMeTarget\", tokens);\n\t\t\t}\n\n\t\t\tvar settleCommand = {\n\t\t\t\ttype: \"settleCmd\",\n\t\t\t\targs: [onExpr],\n\t\t\t\top: function (context, on) {\n\t\t\t\t\truntime.nullCheck(on, onExpr);\n\t\t\t\t\tvar resolve = null;\n\t\t\t\t\tvar resolved = false;\n\t\t\t\t\tvar transitionStarted = false;\n\n\t\t\t\t\tvar promise = new Promise(function (r) {\n\t\t\t\t\t\tresolve = r;\n\t\t\t\t\t});\n\n\t\t\t\t\t// listen for a transition begin\n\t\t\t\t\ton.addEventListener(\n\t\t\t\t\t\t\"transitionstart\",\n\t\t\t\t\t\tfunction () {\n\t\t\t\t\t\t\ttransitionStarted = true;\n\t\t\t\t\t\t},\n\t\t\t\t\t\t{ once: true }\n\t\t\t\t\t);\n\n\t\t\t\t\t// if no transition begins in 500ms, cancel\n\t\t\t\t\tsetTimeout(function () {\n\t\t\t\t\t\tif (!transitionStarted && !resolved) {\n\t\t\t\t\t\t\tresolve(runtime.findNext(settleCommand, context));\n\t\t\t\t\t\t}\n\t\t\t\t\t}, 500);\n\n\t\t\t\t\t// continue on a transition emd\n\t\t\t\t\ton.addEventListener(\n\t\t\t\t\t\t\"transitionend\",\n\t\t\t\t\t\tfunction () {\n\t\t\t\t\t\t\tif (!resolved) {\n\t\t\t\t\t\t\t\tresolve(runtime.findNext(settleCommand, context));\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t},\n\t\t\t\t\t\t{ once: true }\n\t\t\t\t\t);\n\t\t\t\t\treturn promise;\n\t\t\t\t},\n\t\t\t\texecute: function (context) {\n\t\t\t\t\treturn runtime.unifiedExec(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn settleCommand;\n\t\t}\n\t});\n\n\t_hyperscript.addCommand(\"add\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"add\")) {\n\t\t\tvar classRef = parser.parseElement(\"classRef\", tokens);\n\t\t\tvar attributeRef = null;\n\t\t\tvar cssDeclaration = null;\n\t\t\tif (classRef == null) {\n\t\t\t\tattributeRef = parser.parseElement(\"attributeRef\", tokens);\n\t\t\t\tif (attributeRef == null) {\n\t\t\t\t\tcssDeclaration = parser.parseElement(\"styleLiteral\", tokens);\n\t\t\t\t\tif (cssDeclaration == null) {\n\t\t\t\t\t\tparser.raiseParseError(tokens, \"Expected either a class reference or attribute expression\");\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tvar classRefs = [classRef];\n\t\t\t\twhile ((classRef = parser.parseElement(\"classRef\", tokens))) {\n\t\t\t\t\tclassRefs.push(classRef);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"to\")) {\n\t\t\t\tvar toExpr = parser.requireElement(\"expression\", tokens);\n\t\t\t} else {\n\t\t\t\tvar toExpr = parser.parseElement(\"implicitMeTarget\", tokens);\n\t\t\t}\n\n\t\t\tif (classRefs) {\n\t\t\t\treturn {\n\t\t\t\t\tclassRefs: classRefs,\n\t\t\t\t\tto: toExpr,\n\t\t\t\t\targs: [toExpr, classRefs],\n\t\t\t\t\top: function (context, to, classRefs) {\n\t\t\t\t\t\truntime.nullCheck(to, toExpr);\n\t\t\t\t\t\truntime.forEach(classRefs, function (classRef) {\n\t\t\t\t\t\t\truntime.implicitLoop(to, function (target) {\n\t\t\t\t\t\t\t\tif (target instanceof Element) target.classList.add(classRef.className);\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t});\n\t\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t\t},\n\t\t\t\t};\n\t\t\t} else if (attributeRef) {\n\t\t\t\treturn {\n\t\t\t\t\ttype: \"addCmd\",\n\t\t\t\t\tattributeRef: attributeRef,\n\t\t\t\t\tto: toExpr,\n\t\t\t\t\targs: [toExpr],\n\t\t\t\t\top: function (context, to, attrRef) {\n\t\t\t\t\t\truntime.nullCheck(to, toExpr);\n\t\t\t\t\t\truntime.implicitLoop(to, function (target) {\n\t\t\t\t\t\t\ttarget.setAttribute(attributeRef.name, attributeRef.value);\n\t\t\t\t\t\t});\n\t\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t\t},\n\t\t\t\t\texecute: function (ctx) {\n\t\t\t\t\t\treturn runtime.unifiedExec(this, ctx);\n\t\t\t\t\t},\n\t\t\t\t};\n\t\t\t} else {\n\t\t\t\treturn {\n\t\t\t\t\ttype: \"addCmd\",\n\t\t\t\t\tcssDeclaration: cssDeclaration,\n\t\t\t\t\tto: toExpr,\n\t\t\t\t\targs: [toExpr, cssDeclaration],\n\t\t\t\t\top: function (context, to, css) {\n\t\t\t\t\t\truntime.nullCheck(to, toExpr);\n\t\t\t\t\t\truntime.implicitLoop(to, function (target) {\n\t\t\t\t\t\t\ttarget.style.cssText += css;\n\t\t\t\t\t\t});\n\t\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t\t},\n\t\t\t\t\texecute: function (ctx) {\n\t\t\t\t\t\treturn runtime.unifiedExec(this, ctx);\n\t\t\t\t\t},\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\t});\n\n\t_hyperscript.internals.parser.addGrammarElement(\"styleLiteral\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchOpToken(\"{\")) return;\n\n\t\tvar stringParts = [\"\"]\n\t\tvar exprs = []\n\n\t\twhile (tokens.hasMore()) {\n\t\t\tif (tokens.matchOpToken(\"\\\\\")) {\n\t\t\t\ttokens.consumeToken();\n\t\t\t} else if (tokens.matchOpToken(\"}\")) {\n\t\t\t\tbreak;\n\t\t\t} else if (tokens.matchToken(\"$\")) {\n\t\t\t\tvar opencurly = tokens.matchOpToken(\"{\");\n\t\t\t\tvar expr = parser.parseElement(\"expression\", tokens);\n\t\t\t\tif (opencurly) tokens.requireOpToken(\"}\");\n\n\t\t\t\texprs.push(expr)\n\t\t\t\tstringParts.push(\"\")\n\t\t\t} else {\n\t\t\t\tvar tok = tokens.consumeToken();\n\t\t\t\tstringParts[stringParts.length-1] += tokens.source.substring(tok.start, tok.end);\n\t\t\t}\n\n\t\t\tstringParts[stringParts.length-1] += tokens.lastWhitespace();\n\t\t}\n\n\t\treturn {\n\t\t\ttype: \"styleLiteral\",\n\t\t\targs: [exprs],\n\t\t\top: function (ctx, exprs) {\n\t\t\t\tvar rv = \"\";\n\n\t\t\t\tstringParts.forEach(function (part, idx) {\n\t\t\t\t\trv += part;\n\t\t\t\t\tif (idx in exprs) rv += exprs[idx];\n\t\t\t\t});\n\n\t\t\t\treturn rv;\n\t\t\t},\n\t\t\tevaluate: function(ctx) {\n\t\t\t\treturn runtime.unifiedEval(this, ctx);\n\t\t\t}\n\t\t}\n\t})\n\n\t_hyperscript.addCommand(\"remove\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"remove\")) {\n\t\t\tvar classRef = parser.parseElement(\"classRef\", tokens);\n\t\t\tvar attributeRef = null;\n\t\t\tvar elementExpr = null;\n\t\t\tif (classRef == null) {\n\t\t\t\tattributeRef = parser.parseElement(\"attributeRef\", tokens);\n\t\t\t\tif (attributeRef == null) {\n\t\t\t\t\telementExpr = parser.parseElement(\"expression\", tokens);\n\t\t\t\t\tif (elementExpr == null) {\n\t\t\t\t\t\tparser.raiseParseError(\n\t\t\t\t\t\t\ttokens,\n\t\t\t\t\t\t\t\"Expected either a class reference, attribute expression or value expression\"\n\t\t\t\t\t\t);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tvar classRefs = [classRef];\n\t\t\t\twhile ((classRef = parser.parseElement(\"classRef\", tokens))) {\n\t\t\t\t\tclassRefs.push(classRef);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"from\")) {\n\t\t\t\tvar fromExpr = parser.requireElement(\"expression\", tokens);\n\t\t\t} else {\n\t\t\t\tvar fromExpr = parser.requireElement(\"implicitMeTarget\", tokens);\n\t\t\t}\n\n\t\t\tif (elementExpr) {\n\t\t\t\treturn {\n\t\t\t\t\telementExpr: elementExpr,\n\t\t\t\t\tfrom: fromExpr,\n\t\t\t\t\targs: [elementExpr],\n\t\t\t\t\top: function (context, element) {\n\t\t\t\t\t\truntime.nullCheck(element, elementExpr);\n\t\t\t\t\t\truntime.implicitLoop(element, function (target) {\n\t\t\t\t\t\t\tif (target.parentElement) {\n\t\t\t\t\t\t\t\ttarget.parentElement.removeChild(target);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t});\n\t\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t\t},\n\t\t\t\t};\n\t\t\t} else {\n\t\t\t\treturn {\n\t\t\t\t\tclassRefs: classRefs,\n\t\t\t\t\tattributeRef: attributeRef,\n\t\t\t\t\telementExpr: elementExpr,\n\t\t\t\t\tfrom: fromExpr,\n\t\t\t\t\targs: [classRefs, fromExpr],\n\t\t\t\t\top: function (context, classRefs, from) {\n\t\t\t\t\t\truntime.nullCheck(from, fromExpr);\n\t\t\t\t\t\tif (classRefs) {\n\t\t\t\t\t\t\truntime.forEach(classRefs, function (classRef) {\n\t\t\t\t\t\t\t\truntime.implicitLoop(from, function (target) {\n\t\t\t\t\t\t\t\t\ttarget.classList.remove(classRef.className);\n\t\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\truntime.implicitLoop(from, function (target) {\n\t\t\t\t\t\t\t\ttarget.removeAttribute(attributeRef.name);\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t}\n\t\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t\t},\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\t});\n\n\t_hyperscript.addCommand(\"toggle\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"toggle\")) {\n\t\t\tif (tokens.matchToken(\"between\")) {\n\t\t\t\tvar between = true;\n\t\t\t\tvar classRef = parser.parseElement(\"classRef\", tokens);\n\t\t\t\ttokens.requireToken(\"and\");\n\t\t\t\tvar classRef2 = parser.requireElement(\"classRef\", tokens);\n\t\t\t} else {\n\t\t\t\tvar classRef = parser.parseElement(\"classRef\", tokens);\n\t\t\t\tvar attributeRef = null;\n\t\t\t\tif (classRef == null) {\n\t\t\t\t\tattributeRef = parser.parseElement(\"attributeRef\", tokens);\n\t\t\t\t\tif (attributeRef == null) {\n\t\t\t\t\t\tparser.raiseParseError(tokens, \"Expected either a class reference or attribute expression\");\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tvar classRefs = [classRef];\n\t\t\t\t\twhile ((classRef = parser.parseElement(\"classRef\", tokens))) {\n\t\t\t\t\t\tclassRefs.push(classRef);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"on\")) {\n\t\t\t\tvar onExpr = parser.requireElement(\"expression\", tokens);\n\t\t\t} else {\n\t\t\t\tvar onExpr = parser.requireElement(\"implicitMeTarget\", tokens);\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"for\")) {\n\t\t\t\tvar time = parser.requireElement(\"timeExpression\", tokens);\n\t\t\t} else if (tokens.matchToken(\"until\")) {\n\t\t\t\tvar evt = parser.requireElement(\"dotOrColonPath\", tokens, \"Expected event name\");\n\t\t\t\tif (tokens.matchToken(\"from\")) {\n\t\t\t\t\tvar from = parser.requireElement(\"expression\", tokens);\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tvar toggleCmd = {\n\t\t\t\tclassRef: classRef,\n\t\t\t\tclassRef2: classRef2,\n\t\t\t\tclassRefs: classRefs,\n\t\t\t\tattributeRef: attributeRef,\n\t\t\t\ton: onExpr,\n\t\t\t\ttime: time,\n\t\t\t\tevt: evt,\n\t\t\t\tfrom: from,\n\t\t\t\ttoggle: function (on, classRef, classRef2, classRefs) {\n\t\t\t\t\truntime.nullCheck(on, onExpr);\n\t\t\t\t\tif (between) {\n\t\t\t\t\t\truntime.implicitLoop(on, function (target) {\n\t\t\t\t\t\t\tif (target.classList.contains(classRef.className)) {\n\t\t\t\t\t\t\t\ttarget.classList.remove(classRef.className);\n\t\t\t\t\t\t\t\ttarget.classList.add(classRef2.className);\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\ttarget.classList.add(classRef.className);\n\t\t\t\t\t\t\t\ttarget.classList.remove(classRef2.className);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t});\n\t\t\t\t\t} else if (classRefs) {\n\t\t\t\t\t\truntime.forEach(classRefs, function (classRef) {\n\t\t\t\t\t\t\truntime.implicitLoop(on, function (target) {\n\t\t\t\t\t\t\t\ttarget.classList.toggle(classRef.className);\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t});\n\t\t\t\t\t} else {\n\t\t\t\t\t\truntime.forEach(on, function (target) {\n\t\t\t\t\t\t\tif (target.hasAttribute(attributeRef.name)) {\n\t\t\t\t\t\t\t\ttarget.removeAttribute(attributeRef.name);\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\ttarget.setAttribute(attributeRef.name, attributeRef.value);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t});\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\targs: [onExpr, time, evt, from, classRef, classRef2, classRefs],\n\t\t\t\top: function (context, on, time, evt, from, classRef, classRef2, classRefs) {\n\t\t\t\t\tif (time) {\n\t\t\t\t\t\treturn new Promise(function (resolve) {\n\t\t\t\t\t\t\ttoggleCmd.toggle(on, classRef, classRef2, classRefs);\n\t\t\t\t\t\t\tsetTimeout(function () {\n\t\t\t\t\t\t\t\ttoggleCmd.toggle(on, classRef, classRef2, classRefs);\n\t\t\t\t\t\t\t\tresolve(runtime.findNext(toggleCmd, context));\n\t\t\t\t\t\t\t}, time);\n\t\t\t\t\t\t});\n\t\t\t\t\t} else if (evt) {\n\t\t\t\t\t\treturn new Promise(function (resolve) {\n\t\t\t\t\t\t\tvar target = from || context.me;\n\t\t\t\t\t\t\ttarget.addEventListener(\n\t\t\t\t\t\t\t\tevt,\n\t\t\t\t\t\t\t\tfunction () {\n\t\t\t\t\t\t\t\t\ttoggleCmd.toggle(on, classRef, classRef2, classRefs);\n\t\t\t\t\t\t\t\t\tresolve(runtime.findNext(toggleCmd, context));\n\t\t\t\t\t\t\t\t},\n\t\t\t\t\t\t\t\t{ once: true }\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\ttoggleCmd.toggle(on, classRef, classRef2, classRefs);\n\t\t\t\t\t\t});\n\t\t\t\t\t} else {\n\t\t\t\t\t\tthis.toggle(on, classRef, classRef2, classRefs);\n\t\t\t\t\t\treturn runtime.findNext(toggleCmd, context);\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn toggleCmd;\n\t\t}\n\t});\n\n\tvar HIDE_SHOW_STRATEGIES = {\n\t\tdisplay: function (op, element, arg) {\n\t\t\tif (arg) {\n\t\t\t\telement.style.display = arg;\n\t\t\t} else if (op === \"hide\") {\n\t\t\t\tconst internalData = _hyperscript.internals.runtime.getInternalData(element);\n\t\t\t\tif (internalData.originalDisplay == null) {\n\t\t\t\t\tinternalData.originalDisplay = element.style.display;\n\t\t\t\t}\n\t\t\t\telement.style.display = \"none\";\n\t\t\t} else {\n\t\t\t\tconst internalData = _hyperscript.internals.runtime.getInternalData(element);\n\t\t\t\tif (internalData.originalDisplay && internalData.originalDisplay !== 'none') {\n\t\t\t\t\telement.style.display = internalData.originalDisplay;\n\t\t\t\t} else {\n\t\t\t\t\telement.style.removeProperty('display');\n\t\t\t\t}\n\t\t\t}\n\t\t},\n\t\tvisibility: function (op, element, arg) {\n\t\t\tif (arg) {\n\t\t\t\telement.style.visibility = arg;\n\t\t\t} else if (op === \"hide\") {\n\t\t\t\telement.style.visibility = \"hidden\";\n\t\t\t} else {\n\t\t\t\telement.style.visibility = \"visible\";\n\t\t\t}\n\t\t},\n\t\topacity: function (op, element, arg) {\n\t\t\tif (arg) {\n\t\t\t\telement.style.opacity = arg;\n\t\t\t} else if (op === \"hide\") {\n\t\t\t\telement.style.opacity = \"0\";\n\t\t\t} else {\n\t\t\t\telement.style.opacity = \"1\";\n\t\t\t}\n\t\t},\n\t};\n\n\tvar parseShowHideTarget = function (parser, runtime, tokens) {\n\t\tvar target;\n\t\tvar currentTokenValue = tokens.currentToken();\n\t\tif (currentTokenValue.value === \"when\" || currentTokenValue.value === \"with\" || parser.commandBoundary(currentTokenValue)) {\n\t\t\ttarget = parser.parseElement(\"implicitMeTarget\", tokens);\n\t\t} else {\n\t\t\ttarget = parser.parseElement(\"expression\", tokens);\n\t\t}\n\t\treturn target;\n\t};\n\n\tvar resolveStrategy = function (parser, tokens, name) {\n\t\tvar configDefault = _hyperscript.config.defaultHideShowStrategy;\n\t\tvar strategies = HIDE_SHOW_STRATEGIES;\n\t\tif (_hyperscript.config.hideShowStrategies) {\n\t\t\tstrategies = mergeObjects(strategies, _hyperscript.config.hideShowStrategies); // merge in user provided strategies\n\t\t}\n\t\tname = name || configDefault || \"display\";\n\t\tvar value = strategies[name];\n\t\tif (value == null) {\n\t\t\tparser.raiseParseError(tokens, \"Unknown show/hide strategy : \" + name);\n\t\t}\n\t\treturn value;\n\t};\n\n\t_hyperscript.addCommand(\"hide\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"hide\")) {\n\t\t\tvar targetExpr = parseShowHideTarget(parser, runtime, tokens);\n\n\t\t\tvar name = null;\n\t\t\tif (tokens.matchToken(\"with\")) {\n\t\t\t\tname = tokens.requireTokenType(\"IDENTIFIER\").value;\n\t\t\t}\n\t\t\tvar hideShowStrategy = resolveStrategy(parser, tokens, name);\n\n\t\t\treturn {\n\t\t\t\ttarget: targetExpr,\n\t\t\t\targs: [targetExpr],\n\t\t\t\top: function (ctx, target) {\n\t\t\t\t\truntime.nullCheck(target, targetExpr);\n\t\t\t\t\truntime.implicitLoop(target, function (elt) {\n\t\t\t\t\t\thideShowStrategy(\"hide\", elt);\n\t\t\t\t\t});\n\t\t\t\t\treturn runtime.findNext(this, ctx);\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n\n\t_hyperscript.addCommand(\"show\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"show\")) {\n\t\t\tvar targetExpr = parseShowHideTarget(parser, runtime, tokens);\n\n\t\t\tvar name = null;\n\t\t\tif (tokens.matchToken(\"with\")) {\n\t\t\t\tname = tokens.requireTokenType(\"IDENTIFIER\").value;\n\t\t\t}\n\t\t\tvar arg = null;\n\t\t\tif (tokens.matchOpToken(\":\")) {\n\t\t\t\tvar tokenArr = tokens.consumeUntilWhitespace();\n\t\t\t\ttokens.matchTokenType(\"WHITESPACE\");\n\t\t\t\targ = tokenArr\n\t\t\t\t\t.map(function (t) {\n\t\t\t\t\t\treturn t.value;\n\t\t\t\t\t})\n\t\t\t\t\t.join(\"\");\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"when\")) {\n\t\t\t\tvar when = parser.requireElement(\"expression\", tokens);\n\t\t\t}\n\n\t\t\tvar hideShowStrategy = resolveStrategy(parser, tokens, name);\n\n\t\t\treturn {\n\t\t\t\ttarget: targetExpr,\n\t\t\t\twhen: when,\n\t\t\t\targs: [targetExpr],\n\t\t\t\top: function (ctx, target) {\n\t\t\t\t\truntime.nullCheck(target, targetExpr);\n\t\t\t\t\truntime.implicitLoop(target, function (elt) {\n\t\t\t\t\t\tif (when) {\n\t\t\t\t\t\t\tctx['result'] = elt;\n\t\t\t\t\t\t\tlet whenResult = runtime.evaluateNoPromise(when, ctx);\n\t\t\t\t\t\t\tif (whenResult) {\n\t\t\t\t\t\t\t\thideShowStrategy(\"show\", elt, arg);\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\thideShowStrategy(\"hide\", elt);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tctx['result'] = null;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\thideShowStrategy(\"show\", elt, arg);\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t\treturn runtime.findNext(this, ctx);\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n\n\t_hyperscript.addCommand(\"take\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"take\")) {\n\t\t\tvar classRef = parser.parseElement(\"classRef\", tokens);\n\n\t\t\tif (tokens.matchToken(\"from\")) {\n\t\t\t\tvar fromExpr = parser.requireElement(\"expression\", tokens);\n\t\t\t} else {\n\t\t\t\tvar fromExpr = classRef;\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"for\")) {\n\t\t\t\tvar forExpr = parser.requireElement(\"expression\", tokens);\n\t\t\t} else {\n\t\t\t\tvar forExpr = parser.requireElement(\"implicitMeTarget\", tokens);\n\t\t\t}\n\n\t\t\tvar takeCmd = {\n\t\t\t\tclassRef: classRef,\n\t\t\t\tfrom: fromExpr,\n\t\t\t\tforElt: forExpr,\n\t\t\t\targs: [classRef, fromExpr, forExpr],\n\t\t\t\top: function (context, eltColl, from, forElt) {\n\t\t\t\t\truntime.nullCheck(from, fromExpr);\n\t\t\t\t\truntime.nullCheck(forElt, forExpr);\n\t\t\t\t\tvar clazz = eltColl.className;\n\t\t\t\t\truntime.implicitLoop(from, function (target) {\n\t\t\t\t\t\ttarget.classList.remove(clazz);\n\t\t\t\t\t});\n\t\t\t\t\truntime.implicitLoop(forElt, function (target) {\n\t\t\t\t\t\ttarget.classList.add(clazz);\n\t\t\t\t\t});\n\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn takeCmd;\n\t\t}\n\t});\n\n\tfunction putInto(runtime, context, prop, valueToPut) {\n\t\tif (prop) {\n\t\t\tvar value = runtime.resolveSymbol(prop, context);\n\t\t} else {\n\t\t\tvar value = context;\n\t\t}\n\t\tif (value instanceof Element || value instanceof HTMLDocument) {\n\t\t\twhile (value.firstChild) value.removeChild(value.firstChild);\n\t\t\tvalue.append(_hyperscript.internals.runtime.convertValue(valueToPut, \"Fragment\"));\n\t\t} else {\n\t\t\tif (prop) {\n\t\t\t\truntime.setSymbol(prop, context, null, valueToPut);\n\t\t\t} else {\n\t\t\t\tthrow \"Don't know how to put a value into \" + typeof context;\n\t\t\t}\n\t\t}\n\t}\n\n\t_hyperscript.addCommand(\"put\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"put\")) {\n\t\t\tvar value = parser.requireElement(\"expression\", tokens);\n\n\t\t\tvar operationToken = tokens.matchAnyToken(\"into\", \"before\", \"after\");\n\n\t\t\tif (operationToken == null && tokens.matchToken(\"at\")) {\n\t\t\t\ttokens.matchToken(\"the\"); // optional \"the\"\n\t\t\t\toperationToken = tokens.matchAnyToken(\"start\", \"end\");\n\t\t\t\ttokens.requireToken(\"of\");\n\t\t\t}\n\n\t\t\tif (operationToken == null) {\n\t\t\t\tparser.raiseParseError(tokens, \"Expected one of 'into', 'before', 'at start of', 'at end of', 'after'\");\n\t\t\t}\n\t\t\tvar target = parser.requireElement(\"expression\", tokens);\n\n\t\t\tvar operation = operationToken.value;\n\n\t\t\tvar symbolWrite = false;\n\t\t\tvar rootExpr = null;\n\t\t\tvar prop = null;\n\t\t\tif (target.prop && target.root && operation === \"into\") {\n\t\t\t\tprop = target.prop.value;\n\t\t\t\trootExpr = target.root;\n\t\t\t} else if (target.type === \"symbol\" && operation === \"into\") {\n\t\t\t\tsymbolWrite = true;\n\t\t\t\tprop = target.name;\n\t\t\t} else if (target.type === \"attributeRef\" && operation === \"into\") {\n\t\t\t\tvar attributeWrite = true;\n\t\t\t\tprop = target.name;\n\t\t\t\trootExpr = parser.requireElement(\"implicitMeTarget\", tokens);\n\t\t\t} else if (target.attribute && operation === \"into\") {\n\t\t\t\tvar attributeWrite = true;\n\t\t\t\tprop = target.attribute.name;\n\t\t\t\trootExpr = target.root;\n\t\t\t} else {\n\t\t\t\trootExpr = target;\n\t\t\t}\n\n\t\t\tvar putCmd = {\n\t\t\t\ttarget: target,\n\t\t\t\toperation: operation,\n\t\t\t\tsymbolWrite: symbolWrite,\n\t\t\t\tvalue: value,\n\t\t\t\targs: [rootExpr, value],\n\t\t\t\top: function (context, root, valueToPut) {\n\t\t\t\t\tif (symbolWrite) {\n\t\t\t\t\t\tputInto(runtime, context, prop, valueToPut);\n\t\t\t\t\t} else {\n\t\t\t\t\t\truntime.nullCheck(root, rootExpr);\n\t\t\t\t\t\tif (operation === \"into\") {\n\t\t\t\t\t\t\tif (attributeWrite) {\n\t\t\t\t\t\t\t\truntime.implicitLoop(root, function (elt) {\n\t\t\t\t\t\t\t\t\telt.setAttribute(prop, valueToPut);\n\t\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\truntime.implicitLoop(root, function (elt) {\n\t\t\t\t\t\t\t\t\tputInto(runtime, elt, prop, valueToPut);\n\t\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tvar op =\n\t\t\t\t\t\t\t\toperation === \"before\"\n\t\t\t\t\t\t\t\t\t? Element.prototype.before\n\t\t\t\t\t\t\t\t\t: operation === \"after\"\n\t\t\t\t\t\t\t\t\t? Element.prototype.after\n\t\t\t\t\t\t\t\t\t: operation === \"start\"\n\t\t\t\t\t\t\t\t\t? Element.prototype.prepend\n\t\t\t\t\t\t\t\t\t: operation === \"end\"\n\t\t\t\t\t\t\t\t\t? Element.prototype.append\n\t\t\t\t\t\t\t\t\t: Element.prototype.append; // unreachable\n\n\t\t\t\t\t\t\truntime.implicitLoop(root, function (elt) {\n\t\t\t\t\t\t\t\top.call(\n\t\t\t\t\t\t\t\t\telt,\n\t\t\t\t\t\t\t\t\tvalueToPut instanceof Node\n\t\t\t\t\t\t\t\t\t\t? valueToPut\n\t\t\t\t\t\t\t\t\t\t: runtime.convertValue(valueToPut, \"Fragment\")\n\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\treturn runtime.findNext(this, context);\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn putCmd;\n\t\t}\n\t});\n\n\tfunction parsePseudopossessiveTarget(parser, runtime, tokens) {\n\t\tvar targets;\n\t\tif (\n\t\t\ttokens.matchToken(\"the\") ||\n\t\t\ttokens.matchToken(\"element\") ||\n\t\t\ttokens.matchToken(\"elements\") ||\n\t\t\ttokens.currentToken().type === \"CLASS_REF\" ||\n\t\t\ttokens.currentToken().type === \"ID_REF\" ||\n\t\t\t(tokens.currentToken().op && tokens.currentToken().value === \"<\")\n\t\t) {\n\t\t\tparser.possessivesDisabled = true;\n\t\t\ttry {\n\t\t\t\ttargets = parser.parseElement(\"expression\", tokens);\n\t\t\t} finally {\n\t\t\t\tdelete parser.possessivesDisabled;\n\t\t\t}\n\t\t\t// optional possessive\n\t\t\tif (tokens.matchOpToken(\"'\")) {\n\t\t\t\ttokens.requireToken(\"s\");\n\t\t\t}\n\t\t} else if (tokens.currentToken().type === \"IDENTIFIER\" && tokens.currentToken().value === \"its\") {\n\t\t\tvar identifier = tokens.matchToken(\"its\");\n\t\t\ttargets = {\n\t\t\t\ttype: \"pseudopossessiveIts\",\n\t\t\t\ttoken: identifier,\n\t\t\t\tname: identifier.value,\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.resolveSymbol(\"it\", context);\n\t\t\t\t},\n\t\t\t};\n\t\t} else {\n\t\t\ttokens.matchToken(\"my\") || tokens.matchToken(\"me\"); // consume optional 'my'\n\t\t\ttargets = parser.parseElement(\"implicitMeTarget\", tokens);\n\t\t}\n\t\treturn targets;\n\t}\n\n\t_hyperscript.addCommand(\"transition\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"transition\")) {\n\t\t\tvar targetsExpr = parsePseudopossessiveTarget(parser, runtime, tokens);\n\n\t\t\tvar properties = [];\n\t\t\tvar from = [];\n\t\t\tvar to = [];\n\t\t\tvar currentToken = tokens.currentToken();\n\t\t\twhile (\n\t\t\t\t!parser.commandBoundary(currentToken) &&\n\t\t\t\tcurrentToken.value !== \"over\" &&\n\t\t\t\tcurrentToken.value !== \"using\"\n\t\t\t) {\n\t\t\t\tproperties.push(parser.requireElement(\"stringLike\", tokens));\n\n\t\t\t\tif (tokens.matchToken(\"from\")) {\n\t\t\t\t\tfrom.push(parser.requireElement(\"stringLike\", tokens));\n\t\t\t\t} else {\n\t\t\t\t\tfrom.push(null);\n\t\t\t\t}\n\t\t\t\ttokens.requireToken(\"to\");\n\t\t\t\tto.push(parser.requireElement(\"stringLike\", tokens));\n\t\t\t\tcurrentToken = tokens.currentToken();\n\t\t\t}\n\t\t\tif (tokens.matchToken(\"over\")) {\n\t\t\t\tvar over = parser.requireElement(\"timeExpression\", tokens);\n\t\t\t} else if (tokens.matchToken(\"using\")) {\n\t\t\t\tvar using = parser.requireElement(\"expression\", tokens);\n\t\t\t}\n\n\t\t\tvar transition = {\n\t\t\t\tto: to,\n\t\t\t\targs: [targetsExpr, properties, from, to, using, over],\n\t\t\t\top: function (context, targets, properties, from, to, using, over) {\n\t\t\t\t\truntime.nullCheck(targets, targetsExpr);\n\t\t\t\t\tvar promises = [];\n\t\t\t\t\truntime.implicitLoop(targets, function (target) {\n\t\t\t\t\t\tvar promise = new Promise(function (resolve, reject) {\n\t\t\t\t\t\t\tvar initialTransition = target.style.transition;\n\t\t\t\t\t\t\tif (over) {\n\t\t\t\t\t\t\t\ttarget.style.transition = \"all \" + over + \"ms ease-in\";\n\t\t\t\t\t\t\t} else if (using) {\n\t\t\t\t\t\t\t\ttarget.style.transition = using;\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\ttarget.style.transition = _hyperscript.config.defaultTransition;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tvar internalData = runtime.getInternalData(target);\n\t\t\t\t\t\t\tvar computedStyles = getComputedStyle(target);\n\n\t\t\t\t\t\t\tvar initialStyles = {};\n\t\t\t\t\t\t\tfor (var i = 0; i < computedStyles.length; i++) {\n\t\t\t\t\t\t\t\tvar name = computedStyles[i];\n\t\t\t\t\t\t\t\tvar initialValue = computedStyles[name];\n\t\t\t\t\t\t\t\tinitialStyles[name] = initialValue;\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// store intitial values\n\t\t\t\t\t\t\tif (!internalData.initalStyles) {\n\t\t\t\t\t\t\t\tinternalData.initalStyles = initialStyles;\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tfor (var i = 0; i < properties.length; i++) {\n\t\t\t\t\t\t\t\tvar property = properties[i];\n\t\t\t\t\t\t\t\tvar fromVal = from[i];\n\t\t\t\t\t\t\t\tif (fromVal === \"computed\" || fromVal == null) {\n\t\t\t\t\t\t\t\t\ttarget.style[property] = initialStyles[property];\n\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\ttarget.style[property] = fromVal;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t//console.log(\"transition started\", transition);\n\n\t\t\t\t\t\t\tvar transitionStarted = false;\n\t\t\t\t\t\t\tvar resolved = false;\n\n\t\t\t\t\t\t\ttarget.addEventListener(\n\t\t\t\t\t\t\t\t\"transitionend\",\n\t\t\t\t\t\t\t\tfunction () {\n\t\t\t\t\t\t\t\t\tif (!resolved) {\n\t\t\t\t\t\t\t\t\t\t//console.log(\"transition ended\", transition);\n\t\t\t\t\t\t\t\t\t\ttarget.style.transition = initialTransition;\n\t\t\t\t\t\t\t\t\t\tresolved = true;\n\t\t\t\t\t\t\t\t\t\tresolve();\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t},\n\t\t\t\t\t\t\t\t{ once: true }\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\ttarget.addEventListener(\n\t\t\t\t\t\t\t\t\"transitionstart\",\n\t\t\t\t\t\t\t\tfunction () {\n\t\t\t\t\t\t\t\t\ttransitionStarted = true;\n\t\t\t\t\t\t\t\t},\n\t\t\t\t\t\t\t\t{ once: true }\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\t// it no transition has started in 100ms, continue\n\t\t\t\t\t\t\tsetTimeout(function () {\n\t\t\t\t\t\t\t\tif (!resolved && !transitionStarted) {\n\t\t\t\t\t\t\t\t\t//console.log(\"transition ended\", transition);\n\t\t\t\t\t\t\t\t\ttarget.style.transition = initialTransition;\n\t\t\t\t\t\t\t\t\tresolved = true;\n\t\t\t\t\t\t\t\t\tresolve();\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}, 100);\n\n\t\t\t\t\t\t\tsetTimeout(function () {\n\t\t\t\t\t\t\t\tvar autoProps = [];\n\t\t\t\t\t\t\t\tfor (var i = 0; i < properties.length; i++) {\n\t\t\t\t\t\t\t\t\tvar property = properties[i];\n\t\t\t\t\t\t\t\t\tvar toVal = to[i];\n\t\t\t\t\t\t\t\t\tif (toVal === \"initial\") {\n\t\t\t\t\t\t\t\t\t\tvar propertyValue = internalData.initalStyles[property];\n\t\t\t\t\t\t\t\t\t\ttarget.style[property] = propertyValue;\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\ttarget.style[property] = toVal;\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\t//console.log(\"set\", property, \"to\", target.style[property], \"on\", target, \"value passed in : \", toVal);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}, 0);\n\t\t\t\t\t\t});\n\t\t\t\t\t\tpromises.push(promise);\n\t\t\t\t\t});\n\t\t\t\t\treturn Promise.all(promises).then(function () {\n\t\t\t\t\t\treturn runtime.findNext(transition, context);\n\t\t\t\t\t});\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn transition;\n\t\t}\n\t});\n\n\t_hyperscript.addCommand(\"measure\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"measure\")) return;\n\n\t\tvar targetExpr = parsePseudopossessiveTarget(parser, runtime, tokens);\n\n\t\tvar propsToMeasure = [];\n\t\tif (!parser.commandBoundary(tokens.currentToken()))\n\t\t\tdo {\n\t\t\t\tpropsToMeasure.push(tokens.matchTokenType(\"IDENTIFIER\").value);\n\t\t\t} while (tokens.matchOpToken(\",\"));\n\n\t\treturn {\n\t\t\tproperties: propsToMeasure,\n\t\t\targs: [targetExpr],\n\t\t\top: function (ctx, target) {\n\t\t\t\truntime.nullCheck(target, targetExpr);\n\t\t\t\tif (0 in target) target = target[0]; // not measuring multiple elts\n\t\t\t\tvar rect = target.getBoundingClientRect();\n\t\t\t\tvar scroll = {\n\t\t\t\t\ttop: target.scrollTop,\n\t\t\t\t\tleft: target.scrollLeft,\n\t\t\t\t\ttopMax: target.scrollTopMax,\n\t\t\t\t\tleftMax: target.scrollLeftMax,\n\t\t\t\t\theight: target.scrollHeight,\n\t\t\t\t\twidth: target.scrollWidth,\n\t\t\t\t};\n\n\t\t\t\tctx.result = {\n\t\t\t\t\tx: rect.x,\n\t\t\t\t\ty: rect.y,\n\t\t\t\t\tleft: rect.left,\n\t\t\t\t\ttop: rect.top,\n\t\t\t\t\tright: rect.right,\n\t\t\t\t\tbottom: rect.bottom,\n\t\t\t\t\twidth: rect.width,\n\t\t\t\t\theight: rect.height,\n\t\t\t\t\tbounds: rect,\n\n\t\t\t\t\tscrollLeft: scroll.left,\n\t\t\t\t\tscrollTop: scroll.top,\n\t\t\t\t\tscrollLeftMax: scroll.leftMax,\n\t\t\t\t\tscrollTopMax: scroll.topMax,\n\t\t\t\t\tscrollWidth: scroll.width,\n\t\t\t\t\tscrollHeight: scroll.height,\n\t\t\t\t\tscroll: scroll,\n\t\t\t\t};\n\n\t\t\t\truntime.forEach(propsToMeasure, function (prop) {\n\t\t\t\t\tif (prop in ctx.result) ctx[prop] = ctx.result[prop];\n\t\t\t\t\telse throw \"No such measurement as \" + prop;\n\t\t\t\t});\n\n\t\t\t\treturn runtime.findNext(this, ctx);\n\t\t\t},\n\t\t};\n\t});\n\n\t_hyperscript.addLeafExpression(\"closestExpr\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"closest\")) {\n\t\t\tif (tokens.matchToken(\"parent\")) {\n\t\t\t\tvar parentSearch = true;\n\t\t\t}\n\n\t\t\tvar css = null;\n\t\t\tif (tokens.currentToken().type === \"ATTRIBUTE_REF\") {\n\t\t\t\tvar attributeRef = parser.parseElement(\"attributeRefAccess\", tokens, null);\n\t\t\t\tcss = \"[\" + attributeRef.attribute.name + \"]\";\n\t\t\t}\n\n\t\t\tif (css == null) {\n\t\t\t\tvar expr = parser.parseElement(\"expression\", tokens);\n\t\t\t\tif (expr.css == null) {\n\t\t\t\t\tparser.raiseParseError(tokens, \"Expected a CSS expression\");\n\t\t\t\t} else {\n\t\t\t\t\tcss = expr.css;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (tokens.matchToken(\"to\")) {\n\t\t\t\tvar to = parser.parseElement(\"expression\", tokens);\n\t\t\t} else {\n\t\t\t\tvar to = parser.parseElement(\"implicitMeTarget\", tokens);\n\t\t\t}\n\n\t\t\tvar closestExpr = {\n\t\t\t\ttype: \"closestExpr\",\n\t\t\t\tparentSearch: parentSearch,\n\t\t\t\texpr: expr,\n\t\t\t\tcss: css,\n\t\t\t\tto: to,\n\t\t\t\targs: [to],\n\t\t\t\top: function (ctx, to) {\n\t\t\t\t\tif (to == null || !(to instanceof Element)) {\n\t\t\t\t\t\treturn null;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tif (parentSearch) {\n\t\t\t\t\t\t\tvar node = to.parentElement ? to.parentElement.closest(css) : null;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tvar node = to.closest(css);\n\t\t\t\t\t\t}\n\t\t\t\t\t\treturn node;\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tevaluate: function (context) {\n\t\t\t\t\treturn runtime.unifiedEval(this, context);\n\t\t\t\t},\n\t\t\t};\n\n\t\t\tif (attributeRef) {\n\t\t\t\tattributeRef.root = closestExpr;\n\t\t\t\tattributeRef.args = [closestExpr];\n\t\t\t\treturn attributeRef;\n\t\t\t} else {\n\t\t\t\treturn closestExpr;\n\t\t\t}\n\t\t}\n\t});\n\n\t_hyperscript.addCommand(\"go\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"go\")) {\n\t\t\tif (tokens.matchToken(\"back\")) {\n\t\t\t\tvar back = true;\n\t\t\t} else {\n\t\t\t\ttokens.matchToken(\"to\");\n\t\t\t\tif (tokens.matchToken(\"url\")) {\n\t\t\t\t\tvar target = parser.requireElement(\"stringLike\", tokens);\n\t\t\t\t\tvar url = true;\n\t\t\t\t\tif (tokens.matchToken(\"in\")) {\n\t\t\t\t\t\ttokens.requireToken(\"new\");\n\t\t\t\t\t\ttokens.requireToken(\"window\");\n\t\t\t\t\t\tvar newWindow = true;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\ttokens.matchToken(\"the\"); // optional the\n\t\t\t\t\tvar verticalPosition = tokens.matchAnyToken(\"top\", \"bottom\", \"middle\");\n\t\t\t\t\tvar horizontalPosition = tokens.matchAnyToken(\"left\", \"center\", \"right\");\n\t\t\t\t\tif (verticalPosition || horizontalPosition) {\n\t\t\t\t\t\ttokens.requireToken(\"of\");\n\t\t\t\t\t}\n\t\t\t\t\tvar target = parser.requireElement(\"expression\", tokens);\n\t\t\t\t\tvar smoothness = tokens.matchAnyToken(\"smoothly\", \"instantly\");\n\n\t\t\t\t\tvar scrollOptions = {};\n\t\t\t\t\tif (verticalPosition) {\n\t\t\t\t\t\tif (verticalPosition.value === \"top\") {\n\t\t\t\t\t\t\tscrollOptions.block = \"start\";\n\t\t\t\t\t\t} else if (verticalPosition.value === \"bottom\") {\n\t\t\t\t\t\t\tscrollOptions.block = \"end\";\n\t\t\t\t\t\t} else if (verticalPosition.value === \"middle\") {\n\t\t\t\t\t\t\tscrollOptions.block = \"center\";\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tif (horizontalPosition) {\n\t\t\t\t\t\tif (horizontalPosition.value === \"left\") {\n\t\t\t\t\t\t\tscrollOptions.inline = \"start\";\n\t\t\t\t\t\t} else if (horizontalPosition.value === \"center\") {\n\t\t\t\t\t\t\tscrollOptions.inline = \"center\";\n\t\t\t\t\t\t} else if (horizontalPosition.value === \"right\") {\n\t\t\t\t\t\t\tscrollOptions.inline = \"end\";\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tif (smoothness) {\n\t\t\t\t\t\tif (smoothness.value === \"smoothly\") {\n\t\t\t\t\t\t\tscrollOptions.behavior = \"smooth\";\n\t\t\t\t\t\t} else if (smoothness.value === \"instantly\") {\n\t\t\t\t\t\t\tscrollOptions.behavior = \"instant\";\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tvar goCmd = {\n\t\t\t\ttarget: target,\n\t\t\t\targs: [target],\n\t\t\t\top: function (ctx, to) {\n\t\t\t\t\tif (back) {\n\t\t\t\t\t\twindow.history.back();\n\t\t\t\t\t} else if (url) {\n\t\t\t\t\t\tif (to) {\n\t\t\t\t\t\t\tif (to.indexOf(\"#\") === 0 && !newWindow) {\n\t\t\t\t\t\t\t\twindow.location.href = to;\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\twindow.open(to, newWindow ? \"_blank\" : null);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\truntime.forEach(to, function (target) {\n\t\t\t\t\t\t\ttarget.scrollIntoView(scrollOptions);\n\t\t\t\t\t\t});\n\t\t\t\t\t}\n\t\t\t\t\treturn runtime.findNext(goCmd);\n\t\t\t\t},\n\t\t\t};\n\t\t\treturn goCmd;\n\t\t}\n\t});\n\n\t_hyperscript.config.conversions[\"Values\"] = function (/** @type {Node | NodeList} */ node) {\n\t\t/** @type Object<string,string | string[]> */\n\t\tvar result = {};\n\n\t\tvar implicitLoop = _hyperscript.internals.runtime.implicitLoop;\n\n\t\timplicitLoop(node, function (/** @type HTMLInputElement */ node) {\n\t\t\t// Try to get a value directly from this node\n\t\t\tvar input = getInputInfo(node);\n\n\t\t\tif (input !== undefined) {\n\t\t\t\tresult[input.name] = input.value;\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Otherwise, try to query all child elements of this node that *should* contain values.\n\t\t\tif (node.querySelectorAll != undefined) {\n\t\t\t\tvar children = node.querySelectorAll(\"input,select,textarea\");\n\t\t\t\tchildren.forEach(appendValue);\n\t\t\t}\n\t\t});\n\n\t\treturn result;\n\n\t\t/**\n\t\t * @param {HTMLInputElement} node\n\t\t */\n\t\tfunction appendValue(node) {\n\t\t\tvar info = getInputInfo(node);\n\n\t\t\tif (info == undefined) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// If there is no value already stored in this space.\n\t\t\tif (result[info.name] == undefined) {\n\t\t\t\tresult[info.name] = info.value;\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif (Array.isArray(result[info.name]) && Array.isArray(info.value)) {\n\t\t\t\tresult[info.name] = [].concat(result[info.name], info.value);\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\n\t\t/**\n\t\t * @param {HTMLInputElement} node\n\t\t * @returns {{name:string, value:string | string[]} | undefined}\n\t\t */\n\t\tfunction getInputInfo(node) {\n\t\t\ttry {\n\t\t\t\t/** @type {{name: string, value: string | string[]}}*/\n\t\t\t\tvar result = {\n\t\t\t\t\tname: node.name,\n\t\t\t\t\tvalue: node.value,\n\t\t\t\t};\n\n\t\t\t\tif (result.name == undefined || result.value == undefined) {\n\t\t\t\t\treturn undefined;\n\t\t\t\t}\n\n\t\t\t\tif (node.type == \"radio\" && node.checked == false) {\n\t\t\t\t\treturn undefined;\n\t\t\t\t}\n\n\t\t\t\tif (node.type == \"checkbox\") {\n\t\t\t\t\tif (node.checked == false) {\n\t\t\t\t\t\tresult.value = undefined;\n\t\t\t\t\t} else if (typeof result.value === \"string\") {\n\t\t\t\t\t\tresult.value = [result.value];\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif (node.type == \"select-multiple\") {\n\t\t\t\t\t/** @type {NodeListOf<HTMLSelectElement>} */\n\t\t\t\t\tvar selected = node.querySelectorAll(\"option[selected]\");\n\n\t\t\t\t\tresult.value = [];\n\t\t\t\t\tfor (var index = 0; index < selected.length; index++) {\n\t\t\t\t\t\tresult.value.push(selected[index].value);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn result;\n\t\t\t} catch (e) {\n\t\t\t\treturn undefined;\n\t\t\t}\n\t\t}\n\t};\n\n\t_hyperscript.config.conversions[\"HTML\"] = function (value) {\n\t\tvar toHTML = /** @returns {string}*/ function (/** @type any*/ value) {\n\t\t\tif (value instanceof Array) {\n\t\t\t\treturn value\n\t\t\t\t\t.map(function (item) {\n\t\t\t\t\t\treturn toHTML(item);\n\t\t\t\t\t})\n\t\t\t\t\t.join(\"\");\n\t\t\t}\n\n\t\t\tif (value instanceof HTMLElement) {\n\t\t\t\treturn value.outerHTML;\n\t\t\t}\n\n\t\t\tif (value instanceof NodeList) {\n\t\t\t\tvar result = \"\";\n\t\t\t\tfor (var i = 0; i < value.length; i++) {\n\t\t\t\t\tvar node = value[i];\n\t\t\t\t\tif (node instanceof HTMLElement) {\n\t\t\t\t\t\tresult += node.outerHTML;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn result;\n\t\t\t}\n\n\t\t\tif (value.toString) {\n\t\t\t\treturn value.toString();\n\t\t\t}\n\n\t\t\treturn \"\";\n\t\t};\n\n\t\treturn toHTML(value);\n\t};\n\n\t_hyperscript.config.conversions[\"Fragment\"] = function (val) {\n\t\tvar frag = document.createDocumentFragment();\n\t\t_hyperscript.internals.runtime.implicitLoop(val, function (val) {\n\t\t\tif (val instanceof Node) frag.append(val);\n\t\t\telse {\n\t\t\t\tvar temp = document.createElement(\"template\");\n\t\t\t\ttemp.innerHTML = val;\n\t\t\t\tfrag.append(temp.content);\n\t\t\t}\n\t\t});\n\t\treturn frag;\n\t};\n}\n","\nimport _hyperscript from \"../lib/core.js\"\n\nimport web from \"../lib/web.js\"\nimport worker from \"../lib/plugin/worker.js\"\nimport socket from \"../lib/plugin/socket.js\"\nimport eventsource from \"../lib/plugin/eventsource.js\"\nimport template from \"../lib/plugin/template.js\"\nimport hdb from \"../lib/plugin/hdb.js\"\n\nweb(_hyperscript)\nworker(_hyperscript)\nsocket(_hyperscript)\neventsource(_hyperscript)\ntemplate(_hyperscript)\nhdb(_hyperscript)\n\nexport default _hyperscript","///=========================================================================\n/// This module provides the worker feature for hyperscript\n///=========================================================================\n\n/**\n * @param {HyperscriptObject} _hyperscript\n */\nexport default _hyperscript => {\n\n\tvar invocationIdCounter = 0;\n\n\tvar workerFunc = function (self) {\n\t\tself.onmessage = function (e) {\n\t\t\tswitch (e.data.type) {\n\t\t\t\tcase \"init\":\n\t\t\t\t\tself.importScripts(e.data._hyperscript);\n\t\t\t\t\tself.importScripts.apply(self, e.data.extraScripts);\n\t\t\t\t\tconst _hyperscript = self['_hyperscript']\n\t\t\t\t\tvar tokens = _hyperscript.internals.lexer.makeTokensObject(e.data.tokens, [], e.data.source);\n\t\t\t\t\tvar hyperscript = _hyperscript.internals.parser.parseElement(\"hyperscript\", tokens);\n\t\t\t\t\thyperscript.apply(self, self);\n\t\t\t\t\tpostMessage({ type: \"didInit\" });\n\t\t\t\t\tbreak;\n\t\t\t\tcase \"call\":\n\t\t\t\t\ttry {\n\t\t\t\t\t\tvar result = self['_hyperscript'].internals.runtime\n\t\t\t\t\t\t\t.getHyperscriptFeatures(self)[e.data.function]\n\t\t\t\t\t\t\t.apply(self, e.data.args);\n\t\t\t\t\t\tPromise.resolve(result)\n\t\t\t\t\t\t\t.then(function (value) {\n\t\t\t\t\t\t\t\tpostMessage({\n\t\t\t\t\t\t\t\t\ttype: \"resolve\",\n\t\t\t\t\t\t\t\t\tid: e.data.id,\n\t\t\t\t\t\t\t\t\tvalue: value,\n\t\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\t})\n\t\t\t\t\t\t\t.catch(function (error) {\n\t\t\t\t\t\t\t\tpostMessage({\n\t\t\t\t\t\t\t\t\ttype: \"reject\",\n\t\t\t\t\t\t\t\t\tid: e.data.id,\n\t\t\t\t\t\t\t\t\terror: error.toString(),\n\t\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\t});\n\t\t\t\t\t} catch (error) {\n\t\t\t\t\t\tpostMessage({\n\t\t\t\t\t\t\ttype: \"reject\",\n\t\t\t\t\t\t\tid: e.data.id,\n\t\t\t\t\t\t\terror: error.toString(),\n\t\t\t\t\t\t});\n\t\t\t\t\t}\n\t\t\t\t\tbreak;\n\t\t\t}\n\t\t};\n\t};\n\n\t// extract the body of the function, which was only defined so\n\t// that we can get syntax highlighting\n\tvar workerCode = \"(\" + workerFunc.toString() + \")(self)\";\n\tvar blob = new Blob([workerCode], { type: \"text/javascript\" });\n\tvar workerUri = URL.createObjectURL(blob);\n\n\t_hyperscript.addFeature(\"worker\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"worker\")) {\n\t\t\tvar name = parser.requireElement(\"dotOrColonPath\", tokens);\n\t\t\tvar qualifiedName = name.evaluate();\n\t\t\tvar nameSpace = qualifiedName.split(\".\");\n\t\t\tvar workerName = nameSpace.pop();\n\n\t\t\t// Parse extra scripts\n\t\t\tvar extraScripts = [];\n\t\t\tif (tokens.matchOpToken(\"(\")) {\n\t\t\t\tif (tokens.matchOpToken(\")\")) {\n\t\t\t\t\t// no external scripts\n\t\t\t\t} else {\n\t\t\t\t\tdo {\n\t\t\t\t\t\tvar extraScript = tokens.requireTokenType(\"STRING\").value;\n\t\t\t\t\t\tvar absoluteUrl = new URL(extraScript, location.href).href;\n\t\t\t\t\t\textraScripts.push(absoluteUrl);\n\t\t\t\t\t} while (tokens.matchOpToken(\",\"));\n\t\t\t\t\ttokens.requireOpToken(\")\");\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Consume worker methods\n\n\t\t\tvar funcNames = [];\n\t\t\tvar bodyStartIndex = tokens.consumed.length;\n\t\t\tvar bodyEndIndex = tokens.consumed.length;\n\t\t\tdo {\n\t\t\t\tvar feature = parser.parseAnyOf([\"defFeature\", \"jsFeature\"], tokens);\n\t\t\t\tif (feature) {\n\t\t\t\t\tif (feature.type === \"defFeature\") {\n\t\t\t\t\t\tfuncNames.push(feature.name);\n\t\t\t\t\t\tbodyEndIndex = tokens.consumed.length;\n\t\t\t\t\t} else {\n\t\t\t\t\t\tif (tokens.hasMore()) continue;\n\t\t\t\t\t}\n\t\t\t\t} else break;\n\t\t\t} while (tokens.matchToken(\"end\") && tokens.hasMore()); // worker end\n\n\t\t\tvar bodyTokens = tokens.consumed.slice(bodyStartIndex, bodyEndIndex + 1);\n\n\t\t\t// Create worker\n\n\t\t\tvar worker = new Worker(workerUri);\n\n\t\t\t// Send init message to worker\n\n\t\t\tworker.postMessage({\n\t\t\t\ttype: \"init\",\n\t\t\t\t_hyperscript: runtime.hyperscriptUrl,\n\t\t\t\textraScripts: extraScripts,\n\t\t\t\ttokens: bodyTokens,\n\t\t\t\tsource: tokens.source,\n\t\t\t});\n\n\t\t\tvar workerPromise = new Promise(function (resolve, reject) {\n\t\t\t\tworker.addEventListener(\n\t\t\t\t\t\"message\",\n\t\t\t\t\tfunction (e) {\n\t\t\t\t\t\tif (e.data.type === \"didInit\") resolve();\n\t\t\t\t\t},\n\t\t\t\t\t{ once: true }\n\t\t\t\t);\n\t\t\t});\n\n\t\t\t// Create function stubs\n\t\t\tvar stubs = {};\n\t\t\tfuncNames.forEach(function (funcName) {\n\t\t\t\tconsole.log(funcName)\n\t\t\t\tstubs[funcName] = function () {\n\t\t\t\t\tvar args = arguments;\n\t\t\t\t\treturn new Promise(function (resolve, reject) {\n\t\t\t\t\t\tvar id = invocationIdCounter++;\n\t\t\t\t\t\tworker.addEventListener(\"message\", function returnListener(e) {\n\t\t\t\t\t\t\tif (e.data.id !== id) return;\n\t\t\t\t\t\t\tworker.removeEventListener(\"message\", returnListener);\n\t\t\t\t\t\t\tif (e.data.type === \"resolve\") resolve(e.data.value);\n\t\t\t\t\t\t\telse reject(e.data.error);\n\t\t\t\t\t\t});\n\t\t\t\t\t\tworkerPromise.then(function () {\n\t\t\t\t\t\t\t// Worker has been initialized, send invocation.\n\t\t\t\t\t\t\tworker.postMessage({\n\t\t\t\t\t\t\t\ttype: \"call\",\n\t\t\t\t\t\t\t\tfunction: funcName,\n\t\t\t\t\t\t\t\targs: Array.from(args),\n\t\t\t\t\t\t\t\tid: id,\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t});\n\t\t\t\t\t});\n\t\t\t\t};\n\t\t\t});\n\n\t\t\treturn {\n\t\t\t\tname: workerName,\n\t\t\t\tworker: worker,\n\t\t\t\tinstall: function (target) {\n\t\t\t\t\truntime.assignToNamespace(target, nameSpace, workerName, stubs);\n\t\t\t\t},\n\t\t\t};\n\t\t}\n\t});\n}\n","///=========================================================================\n/// This module provides the EventSource (SSE) feature for hyperscript\n///=========================================================================\n\n/**\n * @param {HyperscriptObject} _hyperscript\n */\nexport default _hyperscript => {\n\t_hyperscript.addFeature(\"eventsource\", function (parser, runtime, tokens) {\n\t\tif (tokens.matchToken(\"eventsource\")) {\n\t\t\tvar urlElement;\n\t\t\tvar withCredentials = false;\n\n\t\t\t// Get the name we'll assign to this EventSource in the hyperscript context\n\t\t\t/** @type {string} */\n\t\t\tvar name = parser.requireElement(\"dotOrColonPath\", tokens).evaluate();\n\t\t\tvar nameSpace = name.split(\".\");\n\t\t\tvar eventSourceName = nameSpace.pop();\n\n\t\t\t// Get the URL of the EventSource\n\t\t\tif (tokens.matchToken(\"from\")) {\n\t\t\t\turlElement = parser.requireElement(\"stringLike\", tokens);\n\t\t\t}\n\n\t\t\t// Get option to connect with/without credentials\n\t\t\tif (tokens.matchToken(\"with\")) {\n\t\t\t\tif (tokens.matchToken(\"credentials\")) {\n\t\t\t\t\twithCredentials = true;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t/** @type {EventSourceStub} */\n\t\t\tvar stub = {\n\t\t\t\teventSource: null,\n\t\t\t\tlisteners: [],\n\t\t\t\tretryCount: 0,\n\t\t\t\topen: function (url) {\n\t\t\t\t\t// calculate default values for URL argument.\n\t\t\t\t\tif (url == undefined) {\n\t\t\t\t\t\tif (stub.eventSource != null && stub.eventSource.url != undefined) {\n\t\t\t\t\t\t\turl = stub.eventSource.url;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tthrow \"no url defined for EventSource.\";\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Guard multiple opens on the same EventSource\n\t\t\t\t\tif (stub.eventSource != null) {\n\t\t\t\t\t\t// If we're opening a new URL, then close the old one first.\n\t\t\t\t\t\tif (url != stub.eventSource.url) {\n\t\t\t\t\t\t\tstub.eventSource.close();\n\t\t\t\t\t\t} else if (stub.eventSource.readyState != EventSource.CLOSED) {\n\t\t\t\t\t\t\t// Otherwise, we already have the right connection open, so there's nothing left to do.\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Open the EventSource and get ready to populate event handlers\n\t\t\t\t\tstub.eventSource = new EventSource(url, {\n\t\t\t\t\t\twithCredentials: withCredentials,\n\t\t\t\t\t});\n\n\t\t\t\t\t// On successful connection.  Reset retry count.\n\t\t\t\t\tstub.eventSource.addEventListener(\"open\", function (event) {\n\t\t\t\t\t\tstub.retryCount = 0;\n\t\t\t\t\t});\n\n\t\t\t\t\t// On connection error, use exponential backoff to retry (random values from 1 second to 2^7 (128) seconds\n\t\t\t\t\tstub.eventSource.addEventListener(\"error\", function (event) {\n\t\t\t\t\t\t// If the EventSource is closed, then try to reopen\n\t\t\t\t\t\tif (stub.eventSource.readyState == EventSource.CLOSED) {\n\t\t\t\t\t\t\tstub.retryCount = Math.min(7, stub.retryCount + 1);\n\t\t\t\t\t\t\tvar timeout = Math.random() * (2 ^ stub.retryCount) * 500;\n\t\t\t\t\t\t\twindow.setTimeout(stub.open, timeout);\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\n\t\t\t\t\t// Add event listeners\n\t\t\t\t\tfor (var index = 0; index < stub.listeners.length; index++) {\n\t\t\t\t\t\tvar item = stub.listeners[index];\n\t\t\t\t\t\tstub.eventSource.addEventListener(item.type, item.handler, item.options);\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\tclose: function () {\n\t\t\t\t\tif (stub.eventSource != undefined) {\n\t\t\t\t\t\tstub.eventSource.close();\n\t\t\t\t\t}\n\t\t\t\t\tstub.retryCount = 0;\n\t\t\t\t},\n\t\t\t\taddEventListener: function (type, handler, options) {\n\t\t\t\t\tstub.listeners.push({\n\t\t\t\t\t\ttype: type,\n\t\t\t\t\t\thandler: handler,\n\t\t\t\t\t\toptions: options,\n\t\t\t\t\t});\n\n\t\t\t\t\tif (stub.eventSource != null) {\n\t\t\t\t\t\tstub.eventSource.addEventListener(type, handler, options);\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t};\n\n\t\t\t// Create the \"feature\" that will be returned by this function.\n\n\t\t\t/** @type {EventSourceFeature} */\n\t\t\tvar feature = {\n\t\t\t\tname: eventSourceName,\n\t\t\t\tobject: stub,\n\t\t\t\tinstall: function (target) {\n\t\t\t\t\truntime.assignToNamespace(target, nameSpace, eventSourceName, stub);\n\t\t\t\t},\n\t\t\t};\n\n\t\t\t// Parse each event listener and add it into the list\n\t\t\twhile (tokens.matchToken(\"on\")) {\n\t\t\t\t// get event name\n\t\t\t\tvar eventName = parser.requireElement(\"stringLike\", tokens, \"Expected event name\").evaluate(); // OK to evaluate this in real-time?\n\n\t\t\t\t// default encoding is \"\" (autodetect)\n\t\t\t\tvar encoding = \"\";\n\n\t\t\t\t// look for alternate encoding\n\t\t\t\tif (tokens.matchToken(\"as\")) {\n\t\t\t\t\tencoding = parser.requireElement(\"stringLike\", tokens, \"Expected encoding type\").evaluate(); // Ok to evaluate this in real time?\n\t\t\t\t}\n\n\t\t\t\t// get command list for this event handler\n\t\t\t\tvar commandList = parser.requireElement(\"commandList\", tokens);\n\t\t\t\taddImplicitReturnToCommandList(commandList);\n\t\t\t\ttokens.requireToken(\"end\");\n\n\t\t\t\t// Save the event listener into the feature.  This lets us\n\t\t\t\t// connect listeners to new EventSources if we have to reconnect.\n\t\t\t\tstub.listeners.push({\n\t\t\t\t\ttype: eventName,\n\t\t\t\t\thandler: makeHandler(encoding, commandList),\n\t\t\t\t});\n\t\t\t}\n\n\t\t\ttokens.requireToken(\"end\");\n\n\t\t\t// If we have a URL element, then connect to the remote server now.\n\t\t\t// Otherwise, we can connect later with a call to .open()\n\t\t\tif (urlElement != undefined) {\n\t\t\t\tstub.open(urlElement.evaluate());\n\t\t\t}\n\n\t\t\t// Success!\n\t\t\treturn feature;\n\n\t\t\t////////////////////////////////////////////\n\t\t\t// ADDITIONAL HELPER FUNCTIONS HERE...\n\t\t\t////////////////////////////////////////////\n\n\t\t\t/**\n\t\t\t * Makes an eventHandler function that can execute the correct hyperscript commands\n\t\t\t * This is outside of the main loop so that closures don't cause us to run the wrong commands.\n\t\t\t *\n\t\t\t * @param {string} encoding\n\t\t\t * @param {*} commandList\n\t\t\t * @returns {EventHandlerNonNull}\n\t\t\t */\n\t\t\tfunction makeHandler(encoding, commandList) {\n\t\t\t\treturn function (evt) {\n\t\t\t\t\tvar data = decode(evt[\"data\"], encoding);\n\t\t\t\t\tvar context = runtime.makeContext(stub, feature, stub);\n\t\t\t\t\tcontext.event = evt;\n\t\t\t\t\tcontext.result = data;\n\t\t\t\t\tcommandList.execute(context);\n\t\t\t\t};\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * Decodes/Unmarshals a string based on the selected encoding.  If the\n\t\t\t * encoding is not recognized, attempts to auto-detect based on its content\n\t\t\t *\n\t\t\t * @param {string} data - The original data to be decoded\n\t\t\t * @param {string} encoding - The method that the data is currently encoded (\"string\", \"json\", or unknown)\n\t\t\t * @returns {string} - The decoded data\n\t\t\t */\n\t\t\tfunction decode(data, encoding) {\n\t\t\t\t// Force JSON encoding\n\t\t\t\tif (encoding == \"json\") {\n\t\t\t\t\treturn JSON.parse(data);\n\t\t\t\t}\n\n\t\t\t\t// Otherwise, return the data without modification\n\t\t\t\treturn data;\n\t\t\t}\n\n\t\t\t/**\n\t\t\t * Adds a \"HALT\" command to the commandList.\n\t\t\t * TODO: This seems like something that could be optimized:\n\t\t\t * maybe the parser could do automatically,\n\t\t\t * or could be a public function in the parser available to everyone,\n\t\t\t * or the command-executer-thingy could just handle nulls implicitly.\n\t\t\t *\n\t\t\t * @param {*} commandList\n\t\t\t * @returns void\n\t\t\t */\n\t\t\tfunction addImplicitReturnToCommandList(commandList) {\n\t\t\t\tif (commandList.next) {\n\t\t\t\t\treturn addImplicitReturnToCommandList(commandList.next);\n\t\t\t\t}\n\n\t\t\t\tcommandList.next = {\n\t\t\t\t\ttype: \"implicitReturn\",\n\t\t\t\t\top: function (/** @type {Context} */ _context) {\n\t\t\t\t\t\treturn runtime.HALT;\n\t\t\t\t\t},\n\t\t\t\t\texecute: function (/** @type {Context} */ _context) {\n\t\t\t\t\t\t// do nothing\n\t\t\t\t\t},\n\t\t\t\t};\n\t\t\t}\n\t\t}\n\t});\n}","\n/**\n * @param {HyperscriptObject} _hyperscript\n */\nexport default _hyperscript => {\n\tfunction HDB(ctx, runtime, breakpoint) {\n\t\tthis.ctx = ctx;\n\t\tthis.runtime = runtime;\n\t\tthis.cmd = breakpoint;\n\t\tthis._hyperscript = _hyperscript;\n\n\t\tthis.cmdMap = [];\n\n\t\tthis.bus = new EventTarget();\n\t} // See below for methods\n\n\t_hyperscript.addCommand(\"breakpoint\", function (parser, runtime, tokens) {\n\t\tif (!tokens.matchToken(\"breakpoint\")) return;\n\n\t\tvar hdb;\n\n\t\treturn {\n\t\t\top: function (ctx) {\n\t\t\t\tglobalThis.hdb = hdb = new HDB(ctx, runtime, this);\n\t\t\t\ttry {\n\t\t\t\t\treturn hdb.break(ctx);\n\t\t\t\t} catch (e) {\n\t\t\t\t\tconsole.error(e, e.stack);\n\t\t\t\t}\n\t\t\t},\n\t\t};\n\t});\n\tHDB.prototype.break = function(ctx) {\n\t\tconsole.log(\"=== HDB///_hyperscript/debugger ===\");\n\t\tthis.ui();\n\t\treturn new Promise((resolve, reject) => {\n\t\t\tthis.bus.addEventListener(\n\t\t\t\t\"continue\",\n\t\t\t\t() => {\n\t\t\t\t\tif (this.ctx !== ctx) {\n\t\t\t\t\t\t// Context switch\n\t\t\t\t\t\tfor (var attr in ctx) {\n\t\t\t\t\t\t\tdelete ctx[attr];\n\t\t\t\t\t\t}\n\t\t\t\t\t\tObject.assign(ctx, this.ctx);\n\t\t\t\t\t}\n\t\t\t\t\tdelete window['hdb'];\n\t\t\t\t\tresolve(this.runtime.findNext(this.cmd, this.ctx));\n\t\t\t\t},\n\t\t\t\t{ once: true }\n\t\t\t);\n\t\t});\n\t};\n\n\tHDB.prototype.continueExec = function () {\n\t\tthis.bus.dispatchEvent(new Event(\"continue\"));\n\t};\n\n\tHDB.prototype.stepOver = function () {\n\t\tif (!this.cmd) return this.continueExec();\n\t\tvar result =\n\t\t\tthis.cmd && this.cmd.type === \"breakpointCommand\"\n\t\t\t\t? this.runtime.findNext(this.cmd, this.ctx)\n\t\t\t\t: this.runtime.unifiedEval(this.cmd, this.ctx);\n\t\tif (result.type === \"implicitReturn\") return this.stepOut();\n\t\tif (result && result.then instanceof Function) {\n\t\t\treturn result.then(next => {\n\t\t\t\tthis.cmd = next;\n\t\t\t\tthis.bus.dispatchEvent(new Event(\"step\"));\n\t\t\t\tthis.logCommand();\n\t\t\t});\n\t\t} else if (result.halt_flag) {\n\t\t\tthis.bus.dispatchEvent(new Event(\"continue\"));\n\t\t} else {\n\t\t\tthis.cmd = result;\n\t\t\tthis.bus.dispatchEvent(new Event(\"step\"));\n\t\t\tthis.logCommand();\n\t\t}\n\t};\n\n\tHDB.prototype.stepOut = function () {\n\t\tif (!this.ctx.meta.caller) return this.continueExec();\n\t\tvar callingCmd = this.ctx.meta.callingCommand;\n\t\tvar oldMe = this.ctx.me;\n\t\tthis.ctx = this.ctx.meta.caller;\n\t\tconsole.log(\n\t\t\t\"[hdb] stepping out into \" + this.ctx.meta.feature.displayName)\n\t\tif (this.ctx.me instanceof Element && this.ctx.me !== oldMe) {\n\t\t\tconsole.log(\"[hdb] me: \", this.ctx.me)\n\t\t}\n\t\tthis.cmd = this.runtime.findNext(callingCmd, this.ctx);\n\t\tthis.cmd = this.runtime.findNext(this.cmd, this.ctx);\n\t\tthis.logCommand();\n\t\tthis.bus.dispatchEvent(new Event(\"step\"));\n\t};\n\n\tHDB.prototype.skipTo = function (toCmd) {\n\t\tthis.cmd = toCmd.cmd\n\t\tthis.bus.dispatchEvent(new Event(\"skip\"));\n\t}\n\n\tHDB.prototype.rewrite = function (command, newCode) {\n\t\tconsole.log('##', command)\n\t\tconst parent = command.cmd.parent\n\t\tlet prev\n\t\tfor (prev of parent.children) {\n\t\t\tif (prev.next === command.cmd) break;\n\t\t}\n\t\tconst next = command.next\n\n\t\tconst tok = _hyperscript.internals.lexer.tokenize(newCode)\n\t\tconst newcmd = _hyperscript.internals.parser.requireElement('command', tok)\n\n\t\tconsole.log(newcmd)\n\t\tnewcmd.startToken    = command.startToken\n\t\tnewcmd.endToken      = command.endToken\n\t\tnewcmd.programSource = command.programSource\n\t\tnewcmd.sourceFor = function () { return newCode }\n\n\t\tprev.next = newcmd\n\t\tnewcmd.next = next\n\t\tnewcmd.parent = parent\n\n\t\tthis.bus.dispatchEvent(new Event('step'))\n\t}\n\n\tHDB.prototype.logCommand = function () {\n\t\tvar hasSource = this.cmd.sourceFor instanceof Function;\n\t\tvar cmdSource = hasSource ? this.cmd.sourceFor() : '-- '+this.cmd.type;\n\t\tconsole.log(\"[hdb] current command: \" + cmdSource)\n\t}\n\n\tHDB.prototype.traverse = function (ge) {\n\t\tconst rv = [];\n\n\t\t(function recurse (ge) {\n\t\t\trv.push(ge);\n\t\t\tfor (const child of ge.children) recurse(rv);\n\t\t})(ge);\n\n\t\treturn rv;\n\t}\n\n\tvar ui = `\n<div class=\"hdb\" _=\"\n\ton load trigger update end \n\ton step from hdb.bus trigger update end\n\ton skip from hdb.bus trigger update end\n\ton continue from hdb.bus log 'done' then remove me.getRootNode().host\">\n\n\t<script type=\"text/hyperscript\">\n\n\tdef escapeHTML(unsafe)\n\t\tjs(unsafe) return unsafe\n\t\t\t.replace(/&/g, \"&amp;\")\n\t\t\t.replace(/</g, \"&lt;\")\n\t\t\t.replace(/>/g, \"&gt;\")\n\t\t\t.replace(/\\\\x22/g, \"&quot;\")\n\t\t\t.replace(/\\\\x27/g, \"&#039;\") end\n\t\treturn it\n\tend\n\n\tdef makeCommandWidget(i)\n\t\tget \\`<span data-cmd=\\${i}><button class=skip data-cmd=\\${i}>&rdca;</button>\\`\n\t\tif hdb.EXPERIMENTAL\n\t\t\tappend \\`<button class=rewrite data-cmd=\\${i}>Rewrite</button></span>\\`\n\t\tend\n\t\treturn it\n\tend\n\n\tdef renderCode\n\t\tset hdb.cmdMap to []\n\t\tset src to hdb.cmd.programSource\n\t\t\n\t\t-- Find feature\n\t\tset feat to hdb.cmd\n\t\trepeat until no feat.parent or feat.isFeature set feat to feat.parent end\n\n\t\t-- Traverse, finding starts\n\t\tfor cmd in hdb.traverse(feat)\n\t\t\tif no cmd.startToken continue end\n\t\t\tappend {\n\t\t\t\tindex: cmd.startToken.start,\n\t\t\t\twidget: makeCommandWidget(hdb.cmdMap.length),\n\t\t\t\tcmd: cmd\n\t\t\t} to hdb.cmdMap\n\t\tend\n\n\t\tset rv to src.slice(0, hdb.cmdMap[0].index)\n\t\tfor obj in hdb.cmdMap index i\n\t\t\tif obj.cmd is hdb.cmd\n\t\t\t\tappend obj.widget + '<u class=current>' +\n\t\t\t\t\tescapeHTML(src.slice(obj.index, hdb.cmdMap[i+1].index)) + '</u>' to rv\n\t\t\telse\n\t\t\t\tappend obj.widget + escapeHTML(src.slice(obj.index, hdb.cmdMap[i+1].index)) to rv\n\t\t\tend\n\t\tend\n\t\treturn rv\n\tend\n\n\tdef truncate(str, len)\n\t\tif str.length <= len return str end\n\t\treturn str.substr(0, len) + '…'\n\n\tdef prettyPrint(obj)\n\t\tif obj is null      return 'null'      end\n\t\tif Element.prototype.isPrototypeOf(obj)\n\t\t\tset rv to '&lt;<span class=\"token tagname\">' +\n\t\t\t\tobj.tagName.toLowerCase() + \"</span>\"\n\t\t\tfor attr in Array.from(obj.attributes)\n\t\t\t\tif attr.specified\n\t\t\t\t\tset rv to rv +\n\t\t\t\t\t\t' <span class=\"token attr\">' + attr.nodeName +\n\t\t\t\t\t\t'</span>=<span class=\"token string\">\"' + truncate(attr.textContent, 10) +\n\t\t\t\t\t\t'\"</span>'\n\t\t\t\tend\n\t\t\tend\n\t\t\tset rv to rv + '>'\n\t\t\treturn rv\n\t\telse if obj.call\n\t\t\tif obj.hyperfunc\n\t\t\t\tget \"def \" + obj.hypername + ' ...'\n\t\t\telse\n\t\t\t\tget \"function \"+obj.name+\"(...) {...}\"\n\t\t\tend\n\t\telse if obj.toString\n\t\t\tcall obj.toString()\n\t\tend\n\t\treturn escapeHTML((it or 'undefined').trim())\n\tend\n\t</script>\n\n\t<header _=\"\n\ton pointerdown(clientX, clientY)\n\t\thalt the event\n\t\tcall event.stopPropagation()\n\t\tget first .hdb\n\t\tmeasure its x, y\n\t\tset xoff to clientX - x\n\t\tset yoff to clientY - y\n\t\trepeat until event pointerup from document\n\t\t\twait for pointermove or pointerup from document\n\t\t\tadd {\n\t\t\t\tleft: \\${its clientX - xoff}px;\n\t\t\t\ttop:  \\${its clientY - yoff}px;\n\t\t\t} to .hdb\n\t\tend\n\t\">\n\t\t<h2 class=\"titlebar\">HDB</h2>\n\t\t<ul role=\"toolbar\" class=\"toolbar\" _=\"on pointerdown halt\">\n\t\t\t<li><button _=\"on click call hdb.continueExec()\">\n\t\t\t\t&#x23F5; Continue\n\t\t\t</button>\n\t\t\t<li><button _=\"on click call hdb.stepOver()\">\n\t\t\t\t&#8631; Step Over\n\t\t\t</button>\n\t\t</ul>\n\t</header>\n\n\t<section class=\"sec-code\">\n\n\t\t<div class=\"code-container\">\n\t\t\t<pre class=\"code language-hyperscript\" _=\"\n\t\t\t\ton update from .hdb if hdb.cmd.programSource\n\t\t\t    \tput renderCode() into me\n\t\t\t    \tif Prism\n\t\t\t    \t\tcall Prism.highlightAllUnder(me)\n\t\t\t    \tend\n\t\t\t        go to bottom of .current in me\n\t\t\t\tend\n\n\t\t\t\ton click\n\t\t\t\t\tif target matches .skip\n\t\t\t\t\t\tget (target's @data-cmd) as Int\n\t\t\t\t\t\tcall hdb.skipTo(hdb.cmdMap[result])\n\t\t\t\t\tend\n\t\t\t\t\tif target matches .rewrite\n\t\t\t\t\t\tset cmdNo to (target's @data-cmd) as Int\n\t\t\t\t\t\tset span to the first <span[data-cmd='\\${cmdNo}'] />\n\t\t\t\t\t\tput \\`<form class=rewrite><input id=cmd></form>\\` into the span\n\t\t\t\t\tend\n\t\t\t\tend\n\n\t\t\t\ton submit\n\t\t\t\t\thalt the event\n\t\t\t\t\tget (closest @data-cmd to target) as Int\n\t\t\t\t\tcall hdb.rewrite(hdb.cmdMap[result], #cmd's value)\n\t\t\t\tend\n\t\t\t\"><code></code></pre>\n\t\t</div>\n\t</section>\n\n\t<section class=\"sec-console\" _=\"\n\t\t-- Print context at startup\n\t\tinit repeat for var in Object.keys(hdb.ctx) if var is not 'meta'\n\t\t\tsend hdbUI:consoleEntry(input: var, output: hdb.ctx[var]) to #console\">\n\n\t\t<ul id=\"console\" role=\"list\" _=\"\n\t\t\ton hdbUI:consoleEntry(input, output)\n\t\t\t\tif no hdb.consoleHistory set hdb.consoleHistory to [] end\n\t\t\t\tpush(input) on hdb.consoleHistory\n\t\t\t\tset node to #tmpl-console-entry.content.cloneNode(true)\n\t\t\t\tput the node at end of me\n\t\t\t\tset entry to my lastElementChild\n\t\t\t\tgo to bottom of the entry\n\t\t\t\tput escapeHTML(input) into .input in the entry\n\t\t\t\tif no output\n\t\t\t\t\tcall _hyperscript.internals.runtime.parse(input)\n\t\t\t\t\tif its execute is not undefined then call its execute(hdb.ctx)\n\t\t\t\t\telse call its evaluate(hdb.ctx)\n\t\t\t\t\tend\n\t\t\t\t\tset output to it\n\t\t\t\tend\n\t\t\t\tput prettyPrint(output) as Fragment into .output in the entry\n\t\t\t\">\n\t\t\t<template id=\"tmpl-console-entry\">\n\t\t\t\t<li class=\"console-entry\">\n\t\t\t\t\t<kbd><code class=\"input\"></code></kbd>\n\t\t\t\t\t<samp class=\"output\"></samp>\n\t\t\t\t</li>\n\t\t\t</template>\n\t\t</ul>\n\n\t\t<form id=\"console-form\" data-hist=\"0\" _=\"on submit\n\t\t\t\tsend hdbUI:consoleEntry(input: #console-input's value) to #console\n\t\t\t\tset #console-input's value to ''\n\t\t\t\tset @data-hist to 0\n\t\t\t\tset element oldContent to null\n\t\t\t\thalt\n\t\t\ton keydown[key is 'ArrowUp' or key is 'ArrowDown']\n\t\t\t\tif no hdb.consoleHistory or exit end\n\t\t\t\tif element oldContent is null set element oldContent to #console-input.value end\n\t\t\t\tif event.key is 'ArrowUp' and hdb.consoleHistory.length > -@data-hist\n\t\t\t\t\tdecrement @data-hist\n\t\t\t\telse if event.key is 'ArrowDown' and @data-hist < 0\n\t\t\t\t\tincrement @data-hist\n\t\t\t\tend end\n\t\t\t\tset #console-input.value to hdb.consoleHistory[hdb.consoleHistory.length + @data-hist as Int]\n\t\t\t\t\tor oldContent\n\t\t\t\thalt default\n\t\t\ton input if @data-hist is '0' set element oldContent to #console-input.value\">\n\t\t\t<input id=\"console-input\" placeholder=\"Enter an expression&hellip;\"\n\t\t\t\tautocomplete=\"off\">\n\t\t</form>\n\t</section>\n\n\t<style>\n\t.hdb {\n\t\tborder: 1px solid #888;\n\t\tborder-radius: .3em;\n\t\tbox-shadow: 0 .2em .3em #0008;\n\t\tposition: fixed;\n\t\ttop: .5em; right: .5em;\n\t\twidth: min(40ch, calc(100% - 1em));\n\t\tmax-height: calc(100% - 1em);\n\t\tbackground-color: white;\n\t\tfont-family: sans-serif;\n\t\topacity: .9;\n\t\tz-index: 2147483647;\n\t\tcolor: black;\n\t\tdisplay: flex;\n\t\tflex-flow: column;\n\t}\n\n\t* {\n\t\tbox-sizing: border-box;\n\t}\n\n\theader {\n\t\tdisplay: flex;\n\t\tjustify-content: space-between;\n\t\talign-items: center;\n\t\tpadding: .4em;\n\t}\n\n\t.titlebar {\n\t\tmargin: 0;\n\t\tfont-size: 1em;\n\t\ttouch-action: none;\n\t}\n\n\t.toolbar {\n\t\tdisplay: flex;\n\t\tgap: .35em;\n\n\t\tlist-style: none;\n\t\tpadding-left: 0;\n\t\tmargin: 0;\n\t}\n\n\t.toolbar a, .toolbar button {\n\t\tbackground: #2183ff;\n\t\tborder: 1px solid #3465a4;\n\t\tbox-shadow: 0 1px #b3c6ff inset, 0 .06em .06em #000;\n\t\tborder-radius: .2em;\n\t\tfont: inherit;\n\t\tpadding: .2em .3em;\n\t\tcolor: white;\n\t\ttext-shadow: 0 1px black;\n\t\tfont-weight: bold;\n\t}\n\n\t.toolbar a:hover .toolbar a:focus, .toolbar button:hover, .toolbar button:focus {\n\t\tbackground: #94c8ff;\n\t}\n\n\t.toolbar a:active, .toolbar button:active {\n\t\tbackground: #3465a4;\n\t}\n\n\t.sec-code {\n\t\tborder-radius: .3em;\n\t\toverflow: hidden;\n\t\tbox-shadow: 0 1px white inset, 0 .06em .06em #0008;\n\t\tbackground: #bdf;\n\t\tmargin: 0 .4em;\n\t\tborder: 1px solid #3465a4;\n\t}\n\n\t.hdb h3 {\n\t\tmargin: 0;\n\t\tfont-size: 1em;\n\t\tpadding: .2em .4em 0 .4em;\n\t}\n\n\t.code-container {\n\t\tdisplay: grid;\n\t\tline-height: 1.2em;\n\t\theight: calc(12 * 1.2em);\n\t\tborder-radius: 0 0 .2em .2em;\n\t\toverflow: auto;\n\t\tscrollbar-width: thin;\n\t\tscrollbar-color: #0003 transparent;\n\t}\n\n\t.code, #console, #console-input {\n\t\tfont-family: Consolas, \"Andale Mono WT\", \"Andale Mono\", \"Lucida Console\", \"Lucida Sans Typewriter\", \"DejaVu Sans Mono\", \"Bitstream Vera Sans Mono\", \"Liberation Mono\", \"Nimbus Mono L\", Monaco, \"Courier New\", Courier, monospace;\n\t}\n\n\t.code {\n\t\twidth: 0;\n\t\tmargin: 0;\n\t\tpadding-left: 1ch;\n\t\ttab-size: 2;\n\t\t-moz-tab-size: 2;\n\t\t-o-tab-size: 2;\n\t}\n\n\t.current {\n\t\tfont-weight: bold;\n\t\tbackground: #abf;\n\t}\n\n\t.skip {\n\t\tpadding: 0;\n\t\tmargin: 2px;\n\t\tborder: 1px solid #3465a4;\n\t\tborder-radius: 50%;\n\t\tcolor: #3465a4;\n\t\tbackground: none;\n\t\tfont-weight: bold;\n\t\tfont-size: 1.2em;\n\t\twidth: calc(2ch / 1.2 - 4px);\n\t\theight: calc(2ch / 1.2 - 4px);\n\t\tline-height: 0.6;\n\t}\n\n\t.skip:hover {\n\t\tbackground: #3465a4;\n\t\tcolor: #bdf;\n\t}\n\n\t#console {\n\t\toverflow-y: scroll;\n\t\tscrollbar-width: thin;\n\t\tscrollbar-color: #afc2db transparent;\n\t\theight: calc(12 * 1.2em);\n\t\tlist-style: none;\n\t\tpadding-left: 0;\n\t\tmargin: 0 .4em .4em .4em;\n\t\tposition: relative;\n\t\tword-wrap: break-word;\n\t}\n\n\t#console>*+* {\n\t\tmargin-top: .5em;\n\t}\n\n\t.console-entry>* {\n\t\tdisplay: block;\n\t}\n\n\t.console-entry .input  { color: #3465a4; }\n\t.console-entry .output { color: #333; }\n\n\t.console-entry .input:before  { content: '>> ' }\n\t.console-entry .output:before { content: '<- ' }\n\n\t#console-form {\n\t\tmargin: 0 .4em .4em .4em;\n\t}\n\n\t#console-input {\n\t\twidth: 100%;\n\t\tfont-size: inherit;\n\t}\n\n\t.token.tagname { font-weight: bold; }\n\t.token.attr, .token.builtin, .token.italic { font-style: italic; }\n\t.token.string { opacity: .8; }\n\t.token.keyword { color: #3465a4; }\n\t.token.bold, .token.punctuation, .token.operator { font-weight: bold; }\n\t</style>\n\t</div>\n\t`;\n\tHDB.prototype.ui = function () {\n\t\tvar node = document.createElement(\"div\");\n\t\tvar shadow = node.attachShadow({ mode: \"open\" });\n\t\tnode.style.cssText = \"all: initial\";\n\t\tshadow.innerHTML = 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