Mercurial > hgrepos > Python2 > PyMuPDF

comparison mupdf-source/scripts/wrap/util.py @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 '''
2 Utility fns.
3 '''
4
5 import os
6
7 import jlib
8
9 def clip( text, prefixes, suffixes=''):
10 '''
11 Returns <text> with prefix(s) and suffix(s) removed if present.
12 '''
13 if isinstance( prefixes, str):
14 prefixes = prefixes,
15 if isinstance( suffixes, str):
16 suffixes = suffixes,
17 while 1:
18 for prefix in prefixes:
19 if text.startswith( prefix):
20 text = text[ len( prefix):]
21 break
22 else:
23 break
24 while 1:
25 for suffix in suffixes:
26 if suffix and text.endswith( suffix):
27 text = text[ :-len( suffix)]
28 break
29 else:
30 break
31 return text
32
33
34 def update_file_regress( text, filename, check_regression):
35 '''
36 Behaves like jlib.fs_update(), but if check_regression is true and
37 <filename> already exists with different content from <text>, we show a
38 diff and return an exception.
39 '''
40 text_old = jlib.fs_update( text, filename, check_regression)
41 if check_regression:
42 if text_old is not None:
43 # Existing content differs and <check_regression> is true.
44 with open( f'{filename}-2', 'w') as f:
45 f.write( text)
46 message = f'File would have changed: {os.path.relpath(filename)}'
47 jlib.log( message)
48 jlib.system( f'diff -u {filename} {filename}-2', verbose=True, raise_errors=False, prefix=f'diff {os.path.relpath(filename)}: ', out='log')
49 return Exception( message)
50 return text_old