// --- lexer --- %lex %options flex case-insensitive ranges %% \s+ /* skip whitespace */; /* supported number literal formats: - binary: 0b01100101 - octal (ES6): 0o35 - decimal: 5 - hexadecimal: 0xfe */ ((0|[1-9]\d*|)\.\d+|(0|[1-9]\d*)\.\d*|\d+|0o[0-7]+|0x[a-f\d]+|0b[01]+)\b return "NUMBER"; /* supported color literal formats: #fff #ffffff #ffffffff fff ffffff ffffffff UNSUPPORTED: - color literals which can be treated as numbers, e.g. "111"; add "#" before literal to treat as color */ "#"?([a-f\d]{3}|[a-f\d]{6}|[a-f\d]{8})\b return "COLOR_HEX"; ("aliceblue"|"antiquewhite"|"aqua"|"aquamarine"|"azure"|"beige"|"bisque"|"black"|"blanchedalmond"|"blue"|"blueviolet"|"brown"|"burlywood"|"cadetblue"|"chartreuse"|"chocolate"|"coral"|"cornflowerblue"|"cornsilk"|"crimson"|"cyan"|"darkblue"|"darkcyan"|"darkgoldenrod"|"darkgray"|"darkgreen"|"darkgrey"|"darkkhaki"|"darkmagenta"|"darkolivegreen"|"darkorange"|"darkorchid"|"darkred"|"darksalmon"|"darkseagreen"|"darkslateblue"|"darkslategray"|"darkslategrey"|"darkturquoise"|"darkviolet"|"deeppink"|"deepskyblue"|"dimgray"|"dimgrey"|"dodgerblue"|"firebrick"|"floralwhite"|"forestgreen"|"fuchsia"|"gainsboro"|"ghostwhite"|"gold"|"goldenrod"|"gray"|"green"|"greenyellow"|"grey"|"honeydew"|"hotpink"|"indianred"|"indigo"|"ivory"|"khaki"|"lavender"|"lavenderblush"|"lawngreen"|"lemonchiffon"|"lightblue"|"lightcoral"|"lightcyan"|"lightgoldenrodyellow"|"lightgray"|"lightgreen"|"lightgrey"|"lightpink"|"lightsalmon"|"lightseagreen"|"lightskyblue"|"lightslategray"|"lightslategrey"|"lightsteelblue"|"lightyellow"|"lime"|"limegreen"|"linen"|"magenta"|"maroon"|"mediumaquamarine"|"mediumblue"|"mediumorchid"|"mediumpurple"|"mediumseagreen"|"mediumslateblue"|"mediumspringgreen"|"mediumturquoise"|"mediumvioletred"|"midnightblue"|"mintcream"|"mistyrose"|"moccasin"|"navajowhite"|"navy"|"oldlace"|"olive"|"olivedrab"|"orange"|"orangered"|"orchid"|"palegoldenrod"|"palegreen"|"paleturquoise"|"palevioletred"|"papayawhip"|"peachpuff"|"peru"|"pink"|"plum"|"powderblue"|"purple"|"rebeccapurple"|"red"|"rosybrown"|"royalblue"|"saddlebrown"|"salmon"|"sandybrown"|"seagreen"|"seashell"|"sienna"|"silver"|"skyblue"|"slateblue"|"slategray"|"slategrey"|"snow"|"springgreen"|"steelblue"|"tan"|"teal"|"thistle"|"tomato"|"turquoise"|"violet"|"wheat"|"white"|"whitesmoke"|"yellow"|"yellowgreen")\b return "COLOR_NAME"; ("OrRd"|"PuBu"|"BuPu"|"Oranges"|"BuGn"|"YlOrBr"|"YlGn"|"Reds"|"RdPu"|"Greens"|"YlGnBu"|"Purples"|"GnBu"|"Greys"|"YlOrRd"|"PuRd"|"Blues"|"PuBuGn"|"Spectral"|"RdYlGn"|"RdBu"|"PiYG"|"PRGn"|"RdYlBu"|"BrBG"|"RdGy"|"PuOr"|"Set2"|"Accent"|"Set1"|"Set3"|"Dark2"|"Paired"|"Pastel2"|"Pastel1")\b return "BREWER_CONST"; ("random"|"rand")\b return "COLOR_RANDOM"; ("number"|"num"|"n")\b return "COLOR_NUMBER"; ("temperature"|"temp"|"t")\b return "COLOR_TEMPERATURE"; ("wavelength"|"wl")\b return "COLOR_WAVELENGTH"; "rgb""a"?\b return "CSPACE_RGB"; "argb"\b return "CSPACE_ARGB"; "cmy""a"?\b return "CSPACE_CMY"; "cmyk""a"?\b return "CSPACE_CMYK"; "hsl""a"?\b return "CSPACE_HSL"; "hs"("v"|"b")"a"?\b return "CSPACE_HSV"; "hsi""a"?\b return "CSPACE_HSI"; "lab""a"?\b return "CSPACE_CIELAB"; "lch""a"?\b return "CSPACE_CIELCH"; "hcl""a"?\b return "CSPACE_CIEHCL"; "scale"\b return "SCALE"; "bezier"\b return "SCALE_BEZIER"; "cubehelix"\b return "SCALE_CUBEHELIX"; "@"(\w+".")*\w+\b return "PARAM" "$"\w*\b|"$" return "VARIABLE" "%%" return "%%"; "%" return "%"; "~" return "~"; "+=" return "+="; "+" return "+"; "->" return "->"; "-=" return "-="; "-" return "-"; "^^" return "^^"; "^*" return "^*"; "!^" return "!^"; "^" return "^"; "**" return "**"; "!*" return "!*"; "<*" return "<*"; "*>" return "*>"; "*=" return "*="; "*" return "*"; "/=" return "/="; "/" return "/"; "(" return "("; ")" return ")"; "{" return "{"; "}" return "}"; "[" return "["; "]" return "]"; "," return ","; "=" return "="; "|" return "|"; "<<<" return "<<<"; ">>>" return ">>>"; "<<" return "<<"; ">>" return ">>"; ":" return ":"; ";" return ";"; <> return "EOF"; . return "INVALID"; %% /lex // --- parser --- %right "=" "+=" "-=" "*=" "/=" %nonassoc "%%" %left "+" "-" %left "*" "/" "|" "<<" ">>" "<<<" ">>>" "!*" "**" "<*" "*>" "^*" "^^" "!^" %left "^" %nonassoc "%" %left "UMINUS" "~" %nonassoc "[" "]" %left "PARAM" %nonassoc "COLOR_NUMBER" "COLOR_TEMPERATURE" "CSPACE_RGB" "CSPACE_ARGB" "CSPACE_CMY" "CSPACE_CMYK" "CSPACE_HSL" "CSPACE_HSV" "CSPACE_HSI" "CSPACE_CIELAB" "CSPACE_CIELCH" "CSPACE_CIEHCL" "->" %nonassoc "CORRECT_LIGHTNESS" %start program %% program: statements { return new yy.Program($1, @$); } ; statements: statement -> [new yy.Statement($1, @$)] | statements statement -> $1.concat(new yy.Statement($2, @2)) ; statement: expr EOF -> $1 | expr ";" -> $1 | expr ";" EOF -> $1 ; number: NUMBER -> new yy.NumberLiteralExpr($1, @$) ; exprList: expr2 expr2 -> [$1, $2] | exprList expr2 -> $1.concat($2) ; array: exprList -> new yy.ArrayLiteralExpr($1, @$) ; colorSpace2: CSPACE_RGB -> "rgb" | CSPACE_CMYK -> "cmyk" | CSPACE_HSL -> "hsl" | CSPACE_HSV -> "hsv" | CSPACE_HSI -> "hsi" | CSPACE_CIELAB -> "lab" | CSPACE_CIELCH -> "lch" | CSPACE_CIEHCL -> "hcl" ; colorSpace: colorSpace2 | CSPACE_ARGB -> "argb" | CSPACE_CMY -> "cmy" ; colorSpaceParamsList1: expr "," expr "," expr -> [$1, $3, $5] | expr "," expr "," expr "," expr -> [$1, $3, $5, $7] | expr "," expr "," expr "," expr "," expr -> [$1, $3, $5, $7, $9] ; colorWithStop: expr2 ":" expr2 -> [$1, $3] ; colorsWithStopsList: colorWithStop -> [[$1[0]], [$1[1]]] | colorsWithStopsList colorWithStop -> [$1[0].concat($2[0]), $1[1].concat($2[1])] ; colorsWithStops: "(" colorsWithStopsList ")" -> $2 ; expr2: number | number "%" -> new yy.PercentExpr($1, @$) | COLOR_NAME -> new yy.ColorNameLiteralExpr($1, @$) | COLOR_HEX -> new yy.ColorHexLiteralExpr($1, @$) | COLOR_RANDOM -> new yy.RandomColorExpr(@$) | COLOR_NUMBER expr2 -> new yy.ColorByNumberExpr($2, @$) | COLOR_TEMPERATURE expr2 -> new yy.ColorByTemperatureExpr($2, @$) | COLOR_WAVELENGTH expr2 -> new yy.ColorByWavelengthExpr($2, @$) | colorSpace "(" colorSpaceParamsList1 ")" -> new yy.ColorBySpaceParams($1, $3, @$) | BREWER_CONST -> new yy.BrewerConstExpr($1.replace(/^.+\./, ""), @$) | VARIABLE -> new yy.GetVarExpr($1, @$) | exprWParen ; expr: expr2 | array | colorSpace array -> new yy.ColorBySpaceParams($1, $2.value, @$) | SCALE colorsWithStops -> new yy.ScaleExpr($2[0], $2[1], void 0, @$) | SCALE colorsWithStops colorSpace2 -> new yy.ScaleExpr($2[0], $2[1], $3, @$) | SCALE expr2 -> new yy.ScaleExpr($2, void 0, void 0, @$) | SCALE expr2 colorSpace2 -> new yy.ScaleExpr($2, void 0, $3, @$) | SCALE_BEZIER expr2 -> new yy.BezierExpr($2, @$) | SCALE_CUBEHELIX -> new yy.CubehelixExpr(@$) | expr PARAM -> new yy.GetParamExpr($1, $2.replace(/^@/, ""), @$) | expr PARAM expr2 -> new yy.SetParamExpr($1, $2.replace(/^@/, ""), $3, void 0, @$) | expr PARAM "=" expr2 -> new yy.SetParamExpr($1, $2.replace(/^@/, ""), $4, void 0, @$) | expr PARAM "+=" expr2 -> new yy.SetParamExpr($1, $2.replace(/^@/, ""), $4, "+", @$) | expr PARAM "-=" expr2 -> new yy.SetParamExpr($1, $2.replace(/^@/, ""), $4, "-", @$) | expr PARAM "*=" expr2 -> new yy.SetParamExpr($1, $2.replace(/^@/, ""), $4, "*", @$) | expr PARAM "/=" expr2 -> new yy.SetParamExpr($1, $2.replace(/^@/, ""), $4, "/", @$) | "-" expr %prec "UMINUS" -> new yy.UnaryExpr($2, $1, void 0, @$) | "~" expr -> new yy.UnaryExpr($2, $1, void 0, @$) | "+" expr %prec "CORRECT_LIGHTNESS" -> new yy.UnaryExpr($2, $1, void 0, @$) | expr "+" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "-" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "*" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "/" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "^" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "%%" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "<<" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr ">>" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "<<<" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr ">>>" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "!*" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "**" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "<*" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "*>" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "^*" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "^^" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "!^" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "->" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "|" expr -> new yy.BinaryExpr($1, $3, $2, void 0, @$) | expr "|" "{" colorSpace2 "}" expr -> new yy.BinaryExpr($1, $6, $2, { mode: $4 }, @$) | expr "|" "{" expr "}" expr -> new yy.BinaryExpr($1, $6, $2, { ratio: $4 }, @$) | expr "|" "{" expr2 colorSpace2 "}" expr -> new yy.BinaryExpr($1, $7, $2, { mode: $5, ratio: $4 }, @$) | VARIABLE "=" expr -> new yy.SetVarExpr($1, $3, @$) ; exprWParen: "(" expr ")" -> new yy.ParenthesesExpr($2, @$) ; %%