On Jul 23, 2009, at 11:46 AM, tiefeng wu wrote:
Hi all!
I need to parse c/cpp source files, one requirement is to extract
included header file name.
here is my solution:
p = re.compile(r'#\s*include\s+(?:(<)|("))(.*)(?(1)>)(?(2)")')
m = re.search(p, '#include <header.h>')
m.group(3)
'header.h'
m = re.search(p, '#include "header.h"')
m.group(3)
'header.h'
m = re.search(p, '#include <header.h"')
print(m)
None
m = re.search(p, '#include "header.h>')
print(m)
None
Pretty ugly! And I know for a valid c/cpp source file, it will be not
necessary to check and match '<' with '>' and " with ",
but I'm wondering to see more elegant way to do such thing.
Hi tiefeng,
Regexes are always a little ugly IMO. =)
A side note -- does your parser need to handle /* comments like this
one*/? If so, then regular expressions are not going be sufficient.
Good luck
Philip
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