can somebody tell me how to express a regular expression for the following two strings:
c_source_files
cpp_source_files
I would like to analyze a text file which contains text segments beginning with the mentioned strings.
It could be expressed approximately as follows:
for result in re.findall('c(.*?)pp_source_files', re.S)
# do something....
Thx in advance!
You can use this regex:
# 'c' optionally followed by 'pp', then followed by '_source_files'
r'c(pp)?_source_files'
If you need these strings to be separate words (so that things like notc_source_files don't match), then you can use word boundary 'matchers':
# \b matches a word boundary
r'\bc(pp)?_source_files\b'
import re
data = """
c_source_files
wutdafuc_source_files
cpp_source_files
pcpp_source_files
cp_source_files
"""
print list(re.findall(r'\b(?:c|cpp)_source_files\b', data))
