Recursively perform multiline regex substitution in files matching a spec.

gistfile1.pyw

#!/usr/bin/env python

import re, os

SEARCH_PATTERN = '^(\s*)\/>\s*<Platform\s*Name=\"WexEVM \(ARMV4I\)\"\s*\/>\s*$'
REPLACE_PATTERN = r'\1/>'

pattern = re.compile(SEARCH_PATTERN, re.MULTILINE)

for (dirpath, dirnames, filenames) in os.walk('.'):
    for filename in filenames:
        if re.search('\.vcproj$', filename):
            fullname = dirpath + '/' + filename            
            text = re.sub(pattern, REPLACE_PATTERN, file(fullname).read())
            file(fullname, 'w').write(text)