feat: improved unescapeString for json repair

Author: samestrin

README.md

@@ -2,7 +2,7 @@
 
 [![Star on GitHub](https://img.shields.io/github/stars/samestrin/llm-interface?style=social)](https://github.com/samestrin/llm-interface/stargazers) [![Fork on GitHub](https://img.shields.io/github/forks/samestrin/llm-interface?style=social)](https://github.com/samestrin/llm-interface/network/members) [![Watch on GitHub](https://img.shields.io/github/watchers/samestrin/llm-interface?style=social)](https://github.com/samestrin/llm-interface/watchers)
 
-![Version 2.0.1493](https://img.shields.io/badge/Version-2.0.1493-blue) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT) [![Built with Node.js](https://img.shields.io/badge/Built%20with-Node.js-green)](https://nodejs.org/)
+![Version 2.0.1494](https://img.shields.io/badge/Version-2.0.1494-blue) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT) [![Built with Node.js](https://img.shields.io/badge/Built%20with-Node.js-green)](https://nodejs.org/)
 
 ## Introduction
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "llm-interface",
-  "version": "2.0.1493",
+  "version": "2.0.1494",
   "main": "src/index.js",
   "description": "A simple, unified NPM-based interface for interacting with multiple Large Language Model (LLM) APIs, including OpenAI, AI21 Studio, Anthropic, Cloudflare AI, Cohere, Fireworks AI, Google Gemini, Goose AI, Groq, Hugging Face, Mistral AI, Perplexity, Reka AI, watsonx.ai, and LLaMA.cpp.",
   "type": "commonjs",

src/utils/utils.js

@@ -99,6 +99,20 @@ function extractCodeFromResponse(json, attemptRepair) {
   return json;
 }
 
+function unescapeString(escapedStr) {
+  return escapedStr
+    .replace(/\\n/g, '\n')
+    .replace(/\\t/g, '\t')
+    .replace(/\\r/g, '\r')
+    .replace(/\\b/g, '\b')
+    .replace(/\\f/g, '\f')
+    .replace(/\\v/g, '\v')
+    .replace(/\\0/g, '\0')
+    .replace(/\\\\/g, '\\')
+    .replace(/\\"/g, '"')
+    .replace(/\\'/g, "'");
+}
+
 /**
  * Attempts to parse a JSON string. If parsing fails and attemptRepair is true,
  * it uses jsonrepair to try repairing the JSON string.
@@ -113,6 +127,7 @@ async function parseJSON(json, attemptRepair) {
   const regex = new RegExp(subString, 'ig'); // Added 'g' flag for global replacement
 
   if (typeof json === 'string') {
+    json = unescapeString(json);
     if (regex.test(json)) {
       json = extractCodeFromResponse(json, true);
     } else {