rename safe_int to parse_int; move parse_* to text module

gallery_dl/text.py

@@ -9,8 +9,8 @@
 """Collection of functions that work in strings/text"""
 
 import re
-import os.path
 import html
+import os.path
 import urllib.parse
 
 
@@ -125,6 +125,35 @@ def extract_iter(txt, begin, end, pos=0):
         yield value
 
 
+def parse_bytes(value, default=0, suffixes="bkmgtp"):
+    """Convert a bytes-amount ("500k", "2.5M", ...) to int"""
+    try:
+        last = value[-1].lower()
+    except (TypeError, KeyError, IndexError):
+        return default
+
+    if last in suffixes:
+        mul = 1024 ** suffixes.index(last)
+        value = value[:-1]
+    else:
+        mul = 1
+
+    try:
+        return round(float(value) * mul)
+    except ValueError:
+        return default
+
+
+def parse_int(value, default=0):
+    """Convert 'value' to int"""
+    if not value:
+        return default
+    try:
+        return int(value)
+    except (ValueError, TypeError):
+        return default
+
+
 def parse_query(qs):
     """Parse a query string into key-value pairs"""
     result = {}
@@ -142,6 +171,7 @@ if os.name == "nt":
 else:
     clean_path = clean_path_posix
 
+urljoin = urllib.parse.urljoin
 unquote = urllib.parse.unquote
 escape = html.escape