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2299bb4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | """
Formatter utilities - clean and normalize messages.
"""
import re
from typing import Optional
from html import escape
def clean_message(text: str, max_length: int = 4000) -> str:
"""
Clean and sanitize message text.
- Remove excessive whitespace
- Limit length
- Escape HTML
"""
if not text:
return ""
# Strip leading/trailing whitespace
text = text.strip()
# Remove excessive internal whitespace (more than 2 spaces)
text = re.sub(r' {2,}', ' ', text)
# Remove excessive newlines (more than 2 consecutive)
text = re.sub(r'\n{3,}', '\n\n', text)
# Limit length
if len(text) > max_length:
text = text[:max_length]
# Escape HTML to prevent XSS
text = escape(text)
return text
def normalize_content(content: str) -> str:
"""Normalize message content for storage/search."""
# Lowercase for search indexing (optional)
# Remove special characters for search (optional)
return content.strip()
def format_timestamp(timestamp) -> str:
"""Format a timestamp for display."""
from datetime import datetime
if isinstance(timestamp, datetime):
return timestamp.strftime("%Y-%m-%d %H:%M")
return str(timestamp)
def truncate_text(text: str, max_len: int = 50) -> str:
"""Truncate text for previews."""
if len(text) <= max_len:
return text
return text[:max_len - 3] + "..." |