1 files changed, 45 insertions, 0 deletions
diff --git a/third_party/harfbuzz/contrib/tables/grapheme-break-parse.py b/third_party/harfbuzz/contrib/tables/grapheme-break-parse.py
new file mode 100644
index 0000000000..a4b3534243
--- /dev/null
+++ b/third_party/harfbuzz/contrib/tables/grapheme-break-parse.py
@@ -0,0 +1,45 @@
+import sys
+from unicode_parse_common import *
+
+# http://www.unicode.org/Public/UNIDATA/auxiliary/GraphemeBreakProperty.txt
+
+property_to_harfbuzz = {
+  'CR': 'HB_Grapheme_CR',
+  'LF': 'HB_Grapheme_LF',
+  'Control': 'HB_Grapheme_Control',
+  'Extend': 'HB_Grapheme_Extend',
+  'Prepend': 'HB_Grapheme_Other',
+  'SpacingMark': 'HB_Grapheme_Other',
+  'L': 'HB_Grapheme_L',
+  'V': 'HB_Grapheme_V',
+  'T': 'HB_Grapheme_T',
+  'LV': 'HB_Grapheme_LV',
+  'LVT': 'HB_Grapheme_LVT',
+}
+
+def main(infile, outfile):
+  ranges = unicode_file_parse(infile, property_to_harfbuzz)
+  ranges.sort()
+
+  print >>outfile, '// Generated from Unicode Grapheme break tables\n'
+  print >>outfile, '#ifndef GRAPHEME_BREAK_PROPERTY_H_'
+  print >>outfile, '#define GRAPHEME_BREAK_PROPERTY_H_\n'
+  print >>outfile, '#include <stdint.h>'
+  print >>outfile, '#include "harfbuzz-external.h"\n'
+  print >>outfile, 'struct grapheme_break_property {'
+  print >>outfile, '  uint32_t range_start;'
+  print >>outfile, '  uint32_t range_end;'
+  print >>outfile, '  HB_GraphemeClass klass;'
+  print >>outfile, '};\n'
+  print >>outfile, 'static const struct grapheme_break_property grapheme_break_properties[] = {'
+  for (start, end, value) in ranges:
+    print >>outfile, '  {0x%x, 0x%x, %s},' % (start, end, value)
+  print >>outfile, '};\n'
+  print >>outfile, 'static const unsigned grapheme_break_properties_count = %d;\n' % len(ranges)
+  print >>outfile, '#endif  // GRAPHEME_BREAK_PROPERTY_H_'
+
+if __name__ == '__main__':
+  if len(sys.argv) != 3:
+    print 'Usage: %s <input .txt> <output .h>' % sys.argv[0]
+  else:
+    main(file(sys.argv[1], 'r'), file(sys.argv[2], 'w+'))