python import json import re

def clean_and_format_string(input_string): """ Cleans and formats a string, handling character encoding, nested structures, and Markdown formatting, including table formatting. """ try: # Attempt to parse as JSON, handling potential errors gracefully data = json.loads(input_string) except json.JSONDecodeError: # If it's not JSON, treat it as a raw string content = input_string else: # Extract content if it exists content = data.get("content", "")

Handle nested content extraction

while isinstance(content, str) and content.startswith("{") and content.endswith("}"): try: decoded_content = json.loads(content) if isinstance(decoded_content, dict) and "content" in decoded_content: content = decoded_content["content"] else: break # Stop if content is not a nested object except json.JSONDecodeError: break # Stop if decoding fails

Decode escaped characters

if isinstance(content, str): content = content.encode('utf-8').decode('unicode_escape')

Remove quotes around header if necessary

if isinstance(content, str) and content.startswith('## "') and content.endswith('"'): content = content[3:-1] elif isinstance(content, str) and content.startswith('## ') and '"' in content[3:]: match = re.match(r"(##)\s*"(.?)"\s(.*)", content) if match: content = f"{match.group(1)} {match.group(2)}{match.group(3)}"

Markdown Table Formatting (Simplified)

if isinstance(content, str) and "|" in content: try: lines = content.split('\n') table_lines = [] in_table = False for line in lines: if "|" in line: if not in_table: table_lines.append(line) in_table = True else: table_lines.append(line) elif in_table: # Combine cells on the same row: table_lines.append(line) # Append non table line for processing after table ends. in_table = False except: pass if len(table_lines) > 0: # Join all table lines into single string with comma separated table_rows = [] current_row = "" for line in table_lines: if "|" in line: elements = [e.strip() for e in line.split("|") if e.strip()] if elements: table_rows.append(elements)

    formatted_table_rows = []
    for row in table_rows:
      formatted_table_rows.append(", ".join(row))

    if len(formatted_table_rows) > 0:
        content = "\n\n" + "| " + " |\n|---|".join([" | ".join([c for c in row]) for row in [formatted_table_rows[0].split(", ") if len(formatted_table_rows) > 0 else []] + [formatted_table_rows[1:] if len(formatted_table_rows) > 1 else []]]) + "|\n" + "\n".join(formatted_table_rows[1:]) + "\n\n"

return content