implement 'parse_unicode_escapes()'

gallery_dl/text.py

@@ -174,6 +174,17 @@ def extract_from(txt, pos=0, default=""):
     return extr
 
 
+def parse_unicode_escapes(txt):
+    """Convert JSON Unicode escapes in 'txt' into actual characters"""
+    if "\\u" in txt:
+        return re.sub(r"\\u([0-9a-fA-F]{4})", _hex_to_char, txt)
+    return txt
+
+
+def _hex_to_char(match):
+    return chr(int(match.group(1), 16))
+
+
 def parse_bytes(value, default=0, suffixes="bkmgtp"):
     """Convert a bytes-amount ("500k", "2.5M", ...) to int"""
     try: