uts2puerts/dist/RuleParser.js

A tool to convert uts project to puerts project.

import fs from 'fs-extra';
export class RuleParser {
    async read(ruleFile) {
        const out = [];
        const content = await fs.readFile(ruleFile, 'utf-8');
        const parts = content.split(/(?:\r?\n)+-{12}(?:\r?\n)*/);
        for (const p of parts) {
            if (p === '')
                continue;
            const ruleset = p.split(/(?:\r?\n)+>{12}(?:\r?\n)+/);
            const head = ruleset[0].split(/(?:\r?\n)+/);
            const file = head[0];
            if (file === 'file')
                continue;
            let imports = undefined;
            if (head.length > 1) {
                imports = head.slice(1);
            }
            const rules = [];
            for (let i = 1, len = ruleset.length; i < len; i++) {
                const pair = ruleset[i].split(/(?:\r?\n)+<{12}(?:\r?\n)+/);
                const searchValue = pair[0];
                const replaceValue = pair[1];
                rules.push({ searchValue, replaceValue });
            }
            if (rules.length > 0)
                out.push({ file, imports, rules });
        }
        return out;
    }
}