5469607a00
git-svn-id: http://skia.googlecode.com/svn/trunk@536 2bbb7eff-a529-9590-31e7-b0007b416f81
51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
import sys
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# http://www.unicode.org/Public/UNIDATA/auxiliary/BidiMirroring.txt
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# This parses a file in the format of the above file and outputs a table
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# suitable for bsearch(3). This table maps Unicode code points to their
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# 'mirror'. (Mirroring is used when rendering RTL characters, see the Unicode
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# standard). By convention, this mapping should be commutative, but this code
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# doesn't enforce or check this.
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def main(infile, outfile):
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pairs = []
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for line in infile:
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line = line[:-1]
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if len(line) == 0 or line[0] == '#':
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continue
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if '#' in line:
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(data, _) = line.split('#', 1)
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else:
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data = line
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if ';' not in data:
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continue
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(a, b) = data.split(';', 1)
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a = int(a, 16)
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b = int(b, 16)
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pairs.append((a, b))
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pairs.sort()
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print >>outfile, '// Generated from Unicode Bidi Mirroring tables\n'
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print >>outfile, '#ifndef MIRRORING_PROPERTY_H_'
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print >>outfile, '#define MIRRORING_PROPERTY_H_\n'
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print >>outfile, '#include <stdint.h>'
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print >>outfile, 'struct mirroring_property {'
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print >>outfile, ' uint32_t a;'
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print >>outfile, ' uint32_t b;'
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print >>outfile, '};\n'
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print >>outfile, 'static const struct mirroring_property mirroring_properties[] = {'
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for pair in pairs:
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print >>outfile, ' {0x%x, 0x%x},' % pair
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print >>outfile, '};\n'
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print >>outfile, 'static const unsigned mirroring_properties_count = %d;\n' % len(pairs)
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print >>outfile, '#endif // MIRRORING_PROPERTY_H_'
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if __name__ == '__main__':
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if len(sys.argv) != 3:
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print 'Usage: %s <input .txt> <output .h>' % sys.argv[0]
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else:
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main(file(sys.argv[1], 'r'), file(sys.argv[2], 'w+'))
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