@intradoc/core/index.js

Core package of @intradoc.

'use strict';

// TODO: implement different general template formats
// TODO: custom tags
// TODO: optional open/close names (e.g.: closing name tag can be optional)
// TODO: implement data key - case insensitive match (e.g.: ConTEnT => content)
// TODO: implement respecting whitespace before and after content
// const pattern = /(<!---\s*<%\s*)([\w.]+)(\s*--->\n)(.*?)(\n?<!---\s*)([\w.]+)(\s*%>\s*--->)/gis
const pattern = [
    // open tag ------------------------------------------------------------------
    '(<!---\\s*<%\\s*)',
    // tag name ------------------------------------------------------------------
    '([\\w.]+)',
    '(\\s*--->(?:\\r?\\n|\\r))',
    // content -------------------------------------------------------------------
    '(.*?)',
    // close tag -----------------------------------------------------------------
    '((?:\\r?\\n|\\r)?<!---\\s*)',
    // tag name ------------------------------------------------------------------
    '([\\w.]*)',
    '(\\s*%>\\s*--->)'
].join('');
const regex = new RegExp(pattern, 'gis');
const replace = (content, data) => {
    let numReplaced = 0;
    const newContent = content.replace(regex, (fullMatch, openA, tagNameA, openB, content, closeA, tagNameB, closeB) => {
        if (tagNameA in data) {
            content = data[tagNameA];
            numReplaced++;
        }
        else {
            return fullMatch;
        }
        tagNameB = tagNameB ?? '';
        return (openA + tagNameA + openB +
            content +
            closeA + tagNameB + closeB);
    });
    return {
        content: newContent,
        numReplaced
    };
};

exports.replace = replace;
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