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  1. import re
  2. source_content = '\n'.join([
  3.     '#ifdef TYPEZERO',
  4.     '  int someint = 42;',
  5.     '#endif',
  6.     'void abc ( int value) {',
  7.     '  return 5 ** 2.5',
  8.     '}',
  9.     '',
  10.     'abc',
  11.     '#ifdef TYPEA',                                 # <---- begin identifier, may contain leading/trailing whitespaces
  12.     '#include "some_header.h"',                     # <---- I want these lines
  13.     '           #include "some_other_header23.h"',  # <---- I want these lines
  14.     '           #else        ',                     # optional stop identifier, may contain leading/trailing whitespaces
  15.     'double in_fact_int = 5;',                      # some irrelevant content
  16.     '         #endif    ',                          # final stop identifier, may contain leading/trailing whitespaces
  17.     '',
  18.     'a = 5',
  19.     '#ifdef TYPEB',
  20.     '  abc = 23.5;',
  21.     '#endif',
  22. ])
  23.  
  24. print(re.findall(r'#ifdef\s+TYPEA\s*(.*?)(?=\s*#(?:else|endif))', source_content, re.S))
Success #stdin #stdout 0.02s 9408KB
comments (?)
stdin 
Standard input is empty
stdout 
['#include "some_header.h"\n           #include "some_other_header23.h"']
https://ideone.com/th5JDU
language:
Python 3 (python  3.12)
created:
4 years ago
visibility:
secret

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