@visactor/vmind/esm/utils/json.js

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import JSON5 from "json5";

import { jsonrepair } from "jsonrepair";

import { replaceAll } from "./text";

export const matchJSONStr = str => {
    const first = str.indexOf("{"), last = str.lastIndexOf("}"), result = str.substring(first, last + 1);
    return result && result.length > 0 ? replaceAll(result, "\n", " ") : str;
};

export const revisedJSONStr = str => {
    let res = str;
    return str.includes('"unit":"%""') && (res = res.replaceAll('"unit":"%""', "unit:'%'")), 
    str.includes('"unit": "%""') && (res = res.replaceAll('"unit": "%""', "unit:'%'")), 
    res;
};

export const parseLLMJson = (JsonStr, prefix) => {
    const parseNoPrefixStr = str => {
        try {
            return JSON5.parse(str);
        } catch (err) {
            try {
                return JSON5.parse(jsonrepair(str));
            } catch (err) {
                return {
                    error: `LLM Result is not Valid JSON; llm res: ${JsonStr}`,
                    errorInfo: err
                };
            }
        }
    };
    if (prefix) {
        const splitArr = JsonStr.split(prefix), res = parseNoPrefixStr(splitArr[splitArr.length - 2]);
        if (!res.error) return res;
    }
    const res2 = parseNoPrefixStr(JsonStr);
    return res2.error && console.error(res2.errorInfo), res2;
};
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