@eagleoutice/flowr/util/mermaid/mermaid.js

Static Dataflow Analyzer and Program Slicer for the R Programming Language

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Mermaid = void 0;
/**
 * Global mermaid helper object with useful functions.
 */
exports.Mermaid = {
    name: 'Mermaid',
    /**
     * Replacements applied by escape functions!
     */
    replacements: {
        // keep newlines
        '\\n': '\n',
        '`': '#96;',
        '[': '#91;',
        ']': '#93;',
        '<': '#60;',
        '>': '#62;',
        '*': '#42;',
        '+': '#43;',
        '-': '#45;',
        '"': '#34;',
        '\\': '#92;',
        '_': '#95;',
        '{': '#123;',
        '}': '#125;',
        '&': '#38;',
        '\'': '#39;',
        ':': '#58;',
        '∨': '#8744;',
        '∧': '#8743;',
        '¬': '#172;',
        '→': '#8594;',
        '↔': '#8596;',
        '⇒': '#8658;',
        '⇔': '#8660;',
        '∀': '#8704;',
        '∃': '#8707;',
        '∈': '#8712;',
        '∉': '#8713;',
        '∋': '#8715;',
        '∌': '#8716;',
        '∩': '#8745;',
        '∪': '#8746;',
        '∫': '#8747;',
        '⊕': '#8853;',
    },
    /**
     * Escapes markdown special characters in a string.
     */
    escape(text) {
        for (const [key, value] of Object.entries(exports.Mermaid.replacements)) {
            text = text.replaceAll(key, value);
        }
        return text;
    },
    /**
     * Escapes a string or number to be used as a mermaid node id.
     */
    escapeId(text) {
        text = String(text).replace(/[^a-zA-Z0-9:-]/g, '_');
        return text;
    },
    /**
     * Converts mermaid code (potentially produced by {@link DataflowMermaid.convert}) to an url that presents the graph in the mermaid editor.
     * @param code - code to convert
     * @param edit - if true, the url will point to the editor, otherwise it will point to the viewer
     */
    codeToUrl(code, edit = false) {
        const obj = {
            code,
            mermaid: {
                autoSync: true
            }
        };
        return `https://mermaid.live/${edit ? 'edit' : 'view'}#base64:${Buffer.from(JSON.stringify(obj)).toString('base64')}`;
    }
};
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