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implement text.shorten_path/filename methods

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This commit is contained in:
Mike Fährmann 2015-10-31 00:21:02 +01:00
parent 882b1f31b1
commit db479f881d
1 changed files with 13 additions and 0 deletions
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13
gallery_dl/text.py
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@ -8,7 +8,9 @@
"""Collection of functions that work in strings/text"""
import sys
import re
import os.path
import html.parser
import urllib.parse
import platform
@ -40,6 +42,17 @@ def clean_path_posix(path):
except AttributeError:
return path
def shorten_path(path, limit=255, encoding=sys.getfilesystemencoding()):
"""Shorten a path segment to at most 'limit' bytes"""
return (path.encode(encoding)[:limit]).decode(encoding, "ignore")
def shorten_filename(filename, limit=255, encoding=sys.getfilesystemencoding()):
"""Shorten a filename to at most 'limit' bytes while preserving extension"""
name, extension = os.path.splitext(filename)
bext = extension.encode(encoding)
bname = name.encode(encoding)[:limit-len(bext)]
return bname.decode(encoding, "ignore") + extension
def extract(txt, begin, end, pos=0):
try:
first = txt.index(begin, pos) + len(begin)