headers.py

# Copyright (C) 2015 Oleh Prypin <blaxpirit@gmail.com>
# 
# This file is part of nim-csfml.
# 
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the authors be held liable for any damages
# arising from the use of this software.
# 
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
# 
# 1. The origin of this software must not be misrepresented; you must not
#    claim that you wrote the original software. If you use this software
#    in a product, an acknowledgement in the product documentation would be
#    appreciated but is not required.
# 2. Altered source versions must be plainly marked as such, and must not be
#    misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.


import os.path
import re


inc_path = 'CSFML/include'

skip = 'Thread Mutex'.split()


src = ['''
typedef unsigned long sfWindowHandle;
typedef int size_t;
''']
doc = []

doc_counter = 0
visited = set()
def visit_header(file_path):
    if file_path in visited:
        return
    visited.add(file_path)
    for h in skip:
        if file_path.endswith(h+'.h'):
            return
    write_doc = False
    with open(os.path.join(inc_path, file_path), encoding='ascii') as src_file:
        src.append('\n\n;;;;enum {};;;;\n\n'.format(file_path[:-2].replace('/', '_')))
        for line in src_file:
            if line.strip().startswith('//////'):
                write_doc = False
                continue
            if line.strip().startswith('///') and '\\brief' in line:
                write_doc = True
                global doc_counter
                doc_counter += 1
                doc.append('--------')
                src.append(';;;;enum doc{};;;;'.format(doc_counter))
            if write_doc:
                line = line.strip()
                assert line.startswith('//')
                doc.append(line.lstrip('/').strip())
                continue
            
            if '//' in line and not line.startswith('//'):
                line = line.split('//')[0]
            line = line.strip()
            if not line:
                continue
            if line.startswith('#include'):
                m = re.match(r'#include <(SFML/.+\.h)>', line)
                if m and not m.group(1).endswith('Export.h'):
                    visit_header(m.group(1))
            if line.startswith('#') or line.startswith('//'):
                continue
            if '__int64' in line or 'HWND__' in line:
                continue
            if line.startswith('typedef') and line.rstrip(';').endswith('sfWindowHandle'):
                continue
            if '_API' in line:
                line = re.sub(r'CSFML_[A-Z]+_API ?', '', line)
            line = line.replace('(void)', '()')
            line = line.replace('CSFML_DEPRECATED', '')
            if '<<' in line:
                line = re.sub(r'1 *<< *([0-9]+)', lambda m: str(1<<int(m.group(1))), line)
            line = line.replace('sfTitlebar | sfResize | sfClose', '7')
            src.append(line)
    src.append('\n')


for m in ['system', 'window', 'graphics', 'audio']:
    visit_header('SFML/{}.h'.format(m.capitalize()))


with open('headers_gen.h', 'w') as f:
    f.write('\n'.join(src))
with open('docs_gen.txt', 'w') as f:
    f.write('\n'.join(doc[1:-1]))