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-rw-r--r--win32/replace.py115
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diff --git a/win32/replace.py b/win32/replace.py
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-#!/usr/bin/python
-#
-# Simple utility script to manipulate
-# certain types of strings in a file
-
-# This can be used in various projects where
-# there is the need to replace strings in files,
-# and is copied from GLib's $(srcroot)/win32
-
-# Author: Fan, Chun-wei
-# Date: September 03, 2014
-
-import os
-import sys
-import re
-import string
-import argparse
-
-valid_actions = ['remove-prefix',
- 'replace-var',
- 'replace-str',
- 'remove-str']
-
-def open_file(filename, mode):
- if sys.version_info[0] < 3:
- return open(filename, mode=mode)
- else:
- return open(filename, mode=mode, encoding='utf-8')
-
-def replace_multi(src, dest, replace_items):
- with open_file(src, 'r') as s:
- with open_file(dest, 'w') as d:
- for line in s:
- replace_dict = dict((re.escape(key), value) \
- for key, value in replace_items.items())
- replace_pattern = re.compile("|".join(replace_dict.keys()))
- d.write(replace_pattern.sub(lambda m: \
- replace_dict[re.escape(m.group(0))], line))
-
-def replace(src, dest, instring, outstring):
- replace_item = {instring: outstring}
- replace_multi(src, dest, replace_item)
-
-def check_required_args(args, params):
- for param in params:
- if getattr(args, param, None) is None:
- raise SystemExit('%s: error: --%s argument is required' % (__file__, param))
-
-def warn_ignored_args(args, params):
- for param in params:
- if getattr(args, param, None) is not None:
- print('%s: warning: --%s argument is ignored' % (__file__, param))
-
-def main(argv):
-
- parser = argparse.ArgumentParser(description='Process strings in a file.')
- parser.add_argument('-a',
- '--action',
- help='Action to carry out. Can be one of:\n'
- 'remove-prefix\n'
- 'replace-var\n'
- 'replace-str\n'
- 'remove-str',
- choices=valid_actions)
- parser.add_argument('-i', '--input', help='Input file')
- parser.add_argument('-o', '--output', help='Output file')
- parser.add_argument('--instring', help='String to replace or remove')
- parser.add_argument('--var', help='Autotools variable name to replace')
- parser.add_argument('--outstring',
- help='New String to replace specified string or variable')
- parser.add_argument('--removeprefix', help='Prefix of string to remove')
-
- args = parser.parse_args()
-
- input_string = ''
- output_string = ''
-
- # We must have action, input, output for all operations
- check_required_args(args, ['action','input','output'])
-
- # Build the arguments by the operation that is to be done,
- # to be fed into replace()
-
- # Get rid of prefixes from a string
- if args.action == 'remove-prefix':
- check_required_args(args, ['instring','removeprefix'])
- warn_ignored_args(args, ['outstring','var'])
- input_string = args.removeprefix + args.instring
- output_string = args.instring
-
- # Replace an m4-style variable (those surrounded by @...@)
- if args.action == 'replace-var':
- check_required_args(args, ['var','outstring'])
- warn_ignored_args(args, ['instring','removeprefix'])
- input_string = '@' + args.var + '@'
- output_string = args.outstring
-
- # Replace a string
- if args.action == 'replace-str':
- check_required_args(args, ['instring','outstring'])
- warn_ignored_args(args, ['var','removeprefix'])
- input_string = args.instring
- output_string = args.outstring
-
- # Remove a string
- if args.action == 'remove-str':
- check_required_args(args, ['instring'])
- warn_ignored_args(args, ['var','outstring','removeprefix'])
- input_string = args.instring
- output_string = ''
-
- replace(args.input, args.output, input_string, output_string)
-
-if __name__ == '__main__':
- sys.exit(main(sys.argv))