72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
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#!/usr/bin/env python3
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import os
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import re
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import sys
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import argparse
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from collections import OrderedDict
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# cat fontconfig/fontconfig.h | grep '^Fc[^ ]* *(' | sed -e 's/ *(.*$//'
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def extract(fname):
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with open(fname, 'r', encoding='utf-8') as f:
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for l in f.readlines():
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l = l.rstrip()
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m = re.match(r'^(Fc[^ ]*)[\s\w]*\(.*', l)
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if m and m.group(1) not in ['FcCacheDir', 'FcCacheSubdir']:
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yield m.group(1)
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if __name__=='__main__':
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parser = argparse.ArgumentParser()
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parser.add_argument('srcdir')
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parser.add_argument('head')
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parser.add_argument('tail')
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parser.add_argument('headers', nargs='+')
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args = parser.parse_args()
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definitions = {}
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for fname in os.listdir(args.srcdir):
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define_name, ext = os.path.splitext(fname)
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if ext != '.c':
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continue
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define_name = '__%s__' % os.path.basename(define_name)
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for definition in extract(os.path.join(args.srcdir, fname)):
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definitions[definition] = define_name
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declarations = OrderedDict()
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for fname in args.headers:
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for declaration in extract(fname):
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try:
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define_name = definitions[declaration]
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except KeyError:
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print ('error: could not locate %s in src/*.c' % declaration)
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sys.exit(1)
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declarations[declaration] = define_name
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with open(args.head, 'w') as head:
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with open(args.tail, 'w') as tail:
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tail.write('#if HAVE_GNUC_ATTRIBUTE\n')
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last = None
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for name, define_name in declarations.items():
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alias = 'IA__%s' % name
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hattr = 'FC_ATTRIBUTE_VISIBILITY_HIDDEN'
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head.write('extern __typeof (%s) %s %s;\n' % (name, alias, hattr))
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head.write('#define %s %s\n' % (name, alias))
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if define_name != last:
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if last is not None:
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tail.write('#endif /* %s */\n' % last)
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tail.write('#ifdef %s\n' % define_name)
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last = define_name
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tail.write('# undef %s\n' % name)
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cattr = '__attribute((alias("%s"))) FC_ATTRIBUTE_VISIBILITY_EXPORT' % alias
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tail.write('extern __typeof (%s) %s %s;\n' % (name, name, cattr))
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tail.write('#endif /* %s */\n' % last)
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tail.write('#endif /* HAVE_GNUC_ATTRIBUTE */\n')
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