@theia/core/lib/common/markdown-rendering/markdown-string.js

"use strict";
// *****************************************************************************
// Copyright (C) 2022 Ericsson and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// http://www.eclipse.org/legal/epl-2.0.
//
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License v. 2.0 are satisfied: GNU General Public License, version 2
// with the GNU Classpath Exception which is available at
// https://www.gnu.org/software/classpath/license.html.
//
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
// *****************************************************************************
Object.defineProperty(exports, "__esModule", { value: true });
exports.escapeMarkdownSyntaxTokens = exports.MarkdownStringImpl = exports.MarkdownString = exports.MarkdownStringTextNewlineStyle = void 0;
const strings_1 = require("../strings");
const icon_utilities_1 = require("./icon-utilities");
const types_1 = require("../types");
var MarkdownStringTextNewlineStyle;
(function (MarkdownStringTextNewlineStyle) {
    MarkdownStringTextNewlineStyle[MarkdownStringTextNewlineStyle["Paragraph"] = 0] = "Paragraph";
    MarkdownStringTextNewlineStyle[MarkdownStringTextNewlineStyle["Break"] = 1] = "Break";
})(MarkdownStringTextNewlineStyle = exports.MarkdownStringTextNewlineStyle || (exports.MarkdownStringTextNewlineStyle = {}));
var MarkdownString;
(function (MarkdownString) {
    /**
     * @returns whether the candidate satisfies the interface of a markdown string
     */
    function is(candidate) {
        return (0, types_1.isObject)(candidate) && (0, types_1.isString)(candidate.value);
    }
    MarkdownString.is = is;
})(MarkdownString = exports.MarkdownString || (exports.MarkdownString = {}));
// Copied from https://github.com/microsoft/vscode/blob/7d9b1c37f8e5ae3772782ba3b09d827eb3fdd833/src/vs/base/common/htmlContent.ts
class MarkdownStringImpl {
    constructor(value = '', isTrustedOrOptions = false) {
        var _a, _b, _c;
        this.value = value;
        if (typeof this.value !== 'string') {
            throw new Error('Illegal value for MarkdownString. Expected string, got ' + typeof this.value);
        }
        if (typeof isTrustedOrOptions === 'boolean') {
            this.isTrusted = isTrustedOrOptions;
            this.supportThemeIcons = false;
            this.supportHtml = false;
        }
        else {
            this.isTrusted = (_a = isTrustedOrOptions.isTrusted) !== null && _a !== void 0 ? _a : undefined;
            this.supportThemeIcons = (_b = isTrustedOrOptions.supportThemeIcons) !== null && _b !== void 0 ? _b : false;
            this.supportHtml = (_c = isTrustedOrOptions.supportHtml) !== null && _c !== void 0 ? _c : false;
        }
    }
    appendText(value, newlineStyle = MarkdownStringTextNewlineStyle.Paragraph) {
        this.value += escapeMarkdownSyntaxTokens(this.supportThemeIcons ? (0, icon_utilities_1.escapeIcons)(value) : value)
            .replace(/([ \t]+)/g, (_match, g1) => ' '.repeat(g1.length))
            .replace(/\>/gm, '\\>')
            .replace(/\n/g, newlineStyle === MarkdownStringTextNewlineStyle.Break ? '\\\n' : '\n\n');
        return this;
    }
    appendMarkdown(value) {
        this.value += value;
        return this;
    }
    appendCodeblock(langId, code) {
        this.value += '\n```';
        this.value += langId;
        this.value += '\n';
        this.value += code;
        this.value += '\n```\n';
        return this;
    }
    appendLink(target, label, title) {
        this.value += '[';
        this.value += this._escape(label, ']');
        this.value += '](';
        this.value += this._escape(String(target), ')');
        if (title) {
            this.value += ` "${this._escape(this._escape(title, '"'), ')')}"`;
        }
        this.value += ')';
        return this;
    }
    _escape(value, ch) {
        const r = new RegExp((0, strings_1.escapeRegExpCharacters)(ch), 'g');
        return value.replace(r, (match, offset) => {
            if (value.charAt(offset - 1) !== '\\') {
                return `\\${match}`;
            }
            else {
                return match;
            }
        });
    }
}
exports.MarkdownStringImpl = MarkdownStringImpl;
function escapeMarkdownSyntaxTokens(text) {
    // escape markdown syntax tokens: http://daringfireball.net/projects/markdown/syntax#backslash
    return text.replace(/[\\`*_{}[\]()#+\-!]/g, '\\$&');
}
exports.escapeMarkdownSyntaxTokens = escapeMarkdownSyntaxTokens;
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