@tanstack/highlight/dist/languages/cmake.js

Tiny class-based syntax highlighting for documentation.

import { defineLanguage } from '../core.js';
import { patternTokenizer } from '../internal/patterns.js';
export const cmake = defineLanguage({
    name: 'cmake',
    tokenize: patternTokenizer([
        { collect: collectLexicalRanges },
        { className: 'keyword', regex: /\b(?:if|elseif|else|endif|foreach|endforeach|while|endwhile|function|endfunction|macro|endmacro|block|endblock|return|break|continue)(?=\s*\()/gi },
        { className: 'command', regex: /\b[A-Za-z_]\w*(?=\s*\()/g },
        { className: 'literal', regex: /\b(?:ON|OFF|TRUE|FALSE|YES|NO|Y|N|IGNORE|NOTFOUND)\b/g },
        { className: 'number', regex: /\b\d+(?:\.\d+)*\b/g },
    ]),
});
function collectLexicalRanges(code) {
    const ranges = [];
    const open = /#?\[(=*)\[|#|"|\$(?:(?:ENV|CACHE)?\{|<)|\\[\s\S]/g;
    let match;
    while ((match = open.exec(code))) {
        const start = match.index;
        if (match[0].startsWith('\\'))
            continue;
        let end;
        if (match[0][0] === '$') {
            const brace = match[0].endsWith('{');
            let depth = 1;
            end = open.lastIndex;
            while (end < code.length && depth) {
                if (brace ? code[end] === '{' : code[end] === '<' && code[end - 1] === '$')
                    depth++;
                else if (code[end] === (brace ? '}' : '>'))
                    depth--;
                end++;
            }
        }
        else if (match[1] !== undefined) {
            const delimiter = `]${match[1]}]`;
            const close = code.indexOf(delimiter, open.lastIndex);
            end = close < 0 ? code.length : close + delimiter.length;
        }
        else if (match[0] === '#') {
            const newline = code.indexOf('\n', start);
            end = newline < 0 ? code.length : newline;
        }
        else {
            end = start + 1;
            while (end < code.length) {
                if (code[end] === '\\')
                    end += 2;
                else if (code[end++] === '"')
                    break;
            }
            end = Math.min(end, code.length);
        }
        ranges.push({ start, end, className: match[0][0] === '#' ? 'comment' : match[0][0] === '$' ? 'variable' : 'string' });
        open.lastIndex = end;
    }
    return ranges;
}