braiin/dist/factory/string.factory.js

Behavioral Reasoning AI for Intelligent Navigation

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.extractJson = void 0;
const stripMarkdownFences = (input) => {
    const match = input.trim().match(/^```(?:[a-zA-Z]+)?\s*\n?([\s\S]*?)\n?```$/);
    return match ? match[1] : input;
};
const extractJson = (input) => {
    const cleaned = stripMarkdownFences(input);
    let searchFrom = 0;
    while (searchFrom < cleaned.length) {
        const start = cleaned.indexOf('{', searchFrom);
        if (start === -1)
            return null;
        let depth = 0;
        let inString = false;
        let escape = false;
        for (let i = start; i < cleaned.length; i++) {
            const ch = cleaned[i];
            if (escape) {
                escape = false;
                continue;
            }
            if (inString) {
                if (ch === '\\')
                    escape = true;
                else if (ch === '"')
                    inString = false;
                continue;
            }
            if (ch === '"') {
                inString = true;
                continue;
            }
            if (ch === '{')
                depth++;
            else if (ch === '}') {
                depth--;
                if (depth === 0) {
                    try {
                        return JSON.parse(cleaned.substring(start, i + 1));
                    }
                    catch {
                        break;
                    }
                }
            }
        }
        searchFrom = start + 1;
    }
    return null;
};
exports.extractJson = extractJson;