Initial Query

Write me a python function called fix_json that fixes broken JSON objects, and returns the parsed object. I'll pass the JSON object as a string and it should fix: - Incorect parenthesis, e.g., {"a": (5, 4)} -> {"a": [5, 4]} - Incorrect single quotes, e.g., {'a': 5} -> {"a": 5} - False/True -> false/true Make sure not to break data inside strings! So if there's a True or a ( inside a string keep them the way they are. Also don't break quoted strings

LLM Generation

Query

Write me a python function called fix_json that fixes broken JSON objects, and returns the parsed object. I'll pass the JSON object as a string and it should fix: - Incorect parenthesis, e.g., {"a": (5, 4)} -> {"a": [5, 4]} - Incorrect single quotes, e.g., {'a': 5} -> {"a": 5} - False/True -> false/true Make sure not to break data inside strings! So if there's a True or a ( inside a string keep them the way they are. Also don't break quoted strings

Output

To solve this problem, we need to correct common issues in broken JSON strings, such as incorrect use of parentheses, single quotes, and boolean values. The solution must ensure that these corrections do not affect the content inside string literals. ### Approach The approach involves the following steps: 1. **Split the JSON String**: Use regular expressions to split the input string into string literals and non-string parts. This allows us to process structural elements separately from string content. 2. **Process String Parts**: Convert single-quoted strings to double-quoted strings, escaping any internal double quotes to maintain valid JSON formatting. 3. **Process Non-String Parts**: Replace structural issues such as incorrect use of parentheses, single quotes, and boolean values. This includes converting `True` and `False` to lowercase, replacing parentheses with brackets, and converting structural single quotes to double quotes. 4. **Combine and Parse**: Reassemble the processed parts into a valid JSON string and parse it into a Python object. ### Solution Code 

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import re
import json

def fix_json(json_str):
    # Split the JSON string into string literals and other parts
    pattern = re.compile(r'''("(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')''')
    parts = pattern.split(json_str)
    
    result = []
    for i, part in enumerate(parts):
        if i % 2 == 1:  # string part
            if part.startswith("'"):
                # Process single-quoted string
                content = part[1:-1]
                # Escape double quotes
                content = content.replace('"', r'\"')
                # Enclose in double quotes
                processed = f'"{content}"'
            else:
                # Already double-quoted, leave as is
                processed = part
            result.append(processed)
        else:  # non-string part
            processed = part
            # Replace True/False with lowercase
            processed = re.sub(r'\bTrue\b', 'true', processed, flags=re.IGNORECASE)
            processed = re.sub(r'\bFalse\b', 'false', processed, flags=re.IGNORECASE)
            # Replace parentheses with brackets
            processed = processed.replace('(', '[').replace(')', ']')
            # Replace structural single quotes with double quotes
            processed = processed.replace("'", '"')
            result.append(processed)
    
    # Combine the processed parts
    fixed_json = ''.join(result)
    
    # Parse the JSON to ensure it's valid, and return
    return json.loads(fixed_json)
### Explanation 1. **Splitting the JSON String**: The regular expression `r'''("(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')'''` is used to identify and split the input into string literals and non-string segments. This regex matches both single and double-quoted strings, including those with escaped quotes. 2. **Processing String Parts**: Single-quoted strings are converted to double-quoted strings by escaping any internal double quotes and enclosing the content in double quotes. Double-quoted strings are left unchanged. 3. **Processing Non-String Parts**: In non-string segments, we replace `True` and `False` with their lowercase counterparts, convert parentheses to brackets, and replace any structural single quotes with double quotes. 4. **Combining Parts**: The processed parts are reassembled into a valid JSON string, which is then parsed into a Python object using `json.loads`. This approach ensures that structural issues in the JSON are corrected while preserving the integrity of string content, resulting in a valid and correctly formatted JSON object.

Extract Code

I extracted the following code from that output: 

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import re
import json

def fix_json(json_str):
    # Split the JSON string into string literals and other parts
    pattern = re.compile(r'''("(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')''')
    parts = pattern.split(json_str)
    
    result = []
    for i, part in enumerate(parts):
        if i % 2 == 1:  # string part
            if part.startswith("'"):
                # Process single-quoted string
                content = part[1:-1]
                # Escape double quotes
                content = content.replace('"', r'\"')
                # Enclose in double quotes
                processed = f'"{content}"'
            else:
                # Already double-quoted, leave as is
                processed = part
            result.append(processed)
        else:  # non-string part
            processed = part
            # Replace True/False with lowercase
            processed = re.sub(r'\bTrue\b', 'true', processed, flags=re.IGNORECASE)
            processed = re.sub(r'\bFalse\b', 'false', processed, flags=re.IGNORECASE)
            # Replace parentheses with brackets
            processed = processed.replace('(', '[').replace(')', ']')
            # Replace structural single quotes with double quotes
            processed = processed.replace("'", '"')
            result.append(processed)
    
    # Combine the processed parts
    fixed_json = ''.join(result)
    
    # Parse the JSON to ensure it's valid, and return
    return json.loads(fixed_json)

Run Code Interpreter

Running the following program: 

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import re
import json

def fix_json(json_str):
    # Split the JSON string into string literals and other parts
    pattern = re.compile(r'''("(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')''')
    parts = pattern.split(json_str)
    
    result = []
    for i, part in enumerate(parts):
        if i % 2 == 1:  # string part
            if part.startswith("'"):
                # Process single-quoted string
                content = part[1:-1]
                # Escape double quotes
                content = content.replace('"', r'\"')
                # Enclose in double quotes
                processed = f'"{content}"'
            else:
                # Already double-quoted, leave as is
                processed = part
            result.append(processed)
        else:  # non-string part
            processed = part
            # Replace True/False with lowercase
            processed = re.sub(r'\bTrue\b', 'true', processed, flags=re.IGNORECASE)
            processed = re.sub(r'\bFalse\b', 'false', processed, flags=re.IGNORECASE)
            # Replace parentheses with brackets
            processed = processed.replace('(', '[').replace(')', ']')
            # Replace structural single quotes with double quotes
            processed = processed.replace("'", '"')
            result.append(processed)
    
    # Combine the processed parts
    fixed_json = ''.join(result)
    
    # Parse the JSON to ensure it's valid, and return
    return json.loads(fixed_json)





answer = fix_json('''{"a": 5, "b": [3, 4]}''')
expected = {"a": 5, "b": [3, 4]}
assert answer == expected, f'Wrong answer; got {answer} instead of {expected}'

answer = fix_json('''{'a': 5.0, 'b': (True, 4)}''')
expected = {"a": 5.0, "b": [True, 4]}
assert answer == expected, f'Wrong answer; got {answer} instead of {expected}'

answer = fix_json('''{'True': False, 'b()': (3, 4), "c'": []}''')
expected = {"True": False, "b()": [3, 4], "c'": []}
assert answer == expected, f'Wrong answer; got {answer} instead of {expected}'
print('All tests passed')
And got the output: All tests passed

Substring Evaluation

Testing if the previous output contains the string All tests passed: True