simple fn using regex to check if a string url points to an image file

is_image_url.py

import re

# List of common image file extensions
image_extensions = [
    'jpg', 'jpeg', 'jpe', 'jif', 'jfif', 'jfi',  # JPEG
    'png',                                       # PNG
    'gif',                                       # GIF
    'webp',                                      # WebP
    'tiff', 'tif',                               # TIFF
    'bmp',                                       # BMP
    'svg',                                       # SVG
    'ico',                                       # ICO
    'heic', 'heif'                               # HEIC/HEIF
]

# Regex pattern to match URLs and extract the file extension
pattern = re.compile(r'https?://[^\s/$.?#].[^\s]*\.(' + '|'.join(image_extensions) + r')($|\?|#)', re.IGNORECASE)

def is_image_url(url):
    # Case-insensitive search for the precompiled pattern in the URL
    match = pattern.search(url)
    return bool(match)