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How to Repair Malformed JSON Braces Heuristically in Python

Heuristically fix malformed JSON by balancing braces and quotes, using a stack-based approach to add missing closing characters.

json repair heuristic

Python

import json
import re

def repair_json(text: str) -> str:
    """Heuristically repair malformed JSON by balancing braces and quotes."""
    # Trim whitespace and handle leading/trailing garbage
    text = text.strip()
    
    # Remove common non-JSON decorations
    text = re.sub(r'^(

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