OLD | NEW |
| (Empty) |
1 import sys | |
2 | |
3 # http://www.unicode.org/Public/UNIDATA/auxiliary/BidiMirroring.txt | |
4 | |
5 # This parses a file in the format of the above file and outputs a table | |
6 # suitable for bsearch(3). This table maps Unicode code points to their | |
7 # 'mirror'. (Mirroring is used when rendering RTL characters, see the Unicode | |
8 # standard). By convention, this mapping should be commutative, but this code | |
9 # doesn't enforce or check this. | |
10 | |
11 def main(infile, outfile): | |
12 pairs = [] | |
13 for line in infile: | |
14 line = line[:-1] | |
15 if len(line) == 0 or line[0] == '#': | |
16 continue | |
17 if '#' in line: | |
18 (data, _) = line.split('#', 1) | |
19 else: | |
20 data = line | |
21 if ';' not in data: | |
22 continue | |
23 (a, b) = data.split(';', 1) | |
24 a = int(a, 16) | |
25 b = int(b, 16) | |
26 | |
27 pairs.append((a, b)) | |
28 | |
29 pairs.sort() | |
30 | |
31 print >>outfile, '// Generated from Unicode Bidi Mirroring tables\n' | |
32 print >>outfile, '#ifndef MIRRORING_PROPERTY_H_' | |
33 print >>outfile, '#define MIRRORING_PROPERTY_H_\n' | |
34 print >>outfile, '#include <stdint.h>' | |
35 print >>outfile, 'struct mirroring_property {' | |
36 print >>outfile, ' uint32_t a;' | |
37 print >>outfile, ' uint32_t b;' | |
38 print >>outfile, '};\n' | |
39 print >>outfile, 'static const struct mirroring_property mirroring_properties[
] = {' | |
40 for pair in pairs: | |
41 print >>outfile, ' {0x%x, 0x%x},' % pair | |
42 print >>outfile, '};\n' | |
43 print >>outfile, 'static const unsigned mirroring_properties_count = %d;\n' %
len(pairs) | |
44 print >>outfile, '#endif // MIRRORING_PROPERTY_H_' | |
45 | |
46 if __name__ == '__main__': | |
47 if len(sys.argv) != 3: | |
48 print 'Usage: %s <input .txt> <output .h>' % sys.argv[0] | |
49 else: | |
50 main(file(sys.argv[1], 'r'), file(sys.argv[2], 'w+')) | |
OLD | NEW |