1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gencjkcisvs.py Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,77 @@
1.4 +# This Source Code Form is subject to the terms of the Mozilla Public
1.5 +# License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.6 +# You can obtain one at http://mozilla.org/MPL/2.0/.
1.7 +
1.8 +import os.path
1.9 +import re
1.10 +import sys
1.11 +
1.12 +f = open(sys.argv[1] if len(sys.argv) > 1 else 'StandardizedVariants.txt')
1.13 +
1.14 +line = f.readline()
1.15 +m = re.compile('^# (StandardizedVariants(-\d+(\.\d+)*)?\.txt)').search(line)
1.16 +fileversion = m.group(1)
1.17 +vsdict = {}
1.18 +r = re.compile('^([0-9A-F]{4,6}) (FE0[0-9A-F]); CJK COMPATIBILITY IDEOGRAPH-([0-9A-F]{4,6});')
1.19 +while True:
1.20 + line = f.readline()
1.21 + if not line:
1.22 + break
1.23 + if not 'CJK COMPATIBILITY IDEOGRAPH-' in line:
1.24 + continue
1.25 +
1.26 + m = r.search(line)
1.27 + unified = int(m.group(1), 16)
1.28 + vs = int(m.group(2), 16)
1.29 + compat = int(m.group(3), 16)
1.30 +
1.31 + if not vs in vsdict:
1.32 + vsdict[vs] = {}
1.33 + vsdict[vs][unified] = compat
1.34 +
1.35 +f.close
1.36 +
1.37 +offsets = []
1.38 +length = 10 + 11 * len(vsdict)
1.39 +for (k, mappings) in sorted(vsdict.items()):
1.40 + offsets.append(length)
1.41 + length += 4 + 5 * len(mappings)
1.42 +
1.43 +f = open(sys.argv[2] if len(sys.argv) > 2 else 'CJKCompatSVS.cpp', 'wb')
1.44 +f.write("""// Generated by %s. Do not edit.
1.45 +
1.46 +#include <stdint.h>
1.47 +
1.48 +#define U16(v) (((v) >> 8) & 0xFF), ((v) & 0xFF)
1.49 +#define U24(v) (((v) >> 16) & 0xFF), (((v) >> 8) & 0xFF), ((v) & 0xFF)
1.50 +#define U32(v) (((v) >> 24) & 0xFF), (((v) >> 16) & 0xFF), (((v) >> 8) & 0xFF), ((v) & 0xFF)
1.51 +#define GLYPH(v) U16(v >= 0x2F800 ? (v) - (0x2F800 - 0xFB00) : (v))
1.52 +
1.53 +// Fallback mappings for CJK Compatibility Ideographs Standardized Variants
1.54 +// taken from %s.
1.55 +// Using OpenType format 14 cmap subtable structure to reuse the lookup code
1.56 +// for fonts. The glyphID field is used to store the corresponding codepoints
1.57 +// CJK Compatibility Ideographs. To fit codepoints into the 16-bit glyphID
1.58 +// field, CJK Compatibility Ideographs Supplement (U+2F800..U+2FA1F) will be
1.59 +// mapped to 0xFB00..0xFD1F.
1.60 +extern const uint8_t sCJKCompatSVSTable[] = {
1.61 +""" % (os.path.basename(sys.argv[0]), fileversion))
1.62 +f.write(' U16(14), // format\n')
1.63 +f.write(' U32(%d), // length\n' % length)
1.64 +f.write(' U32(%d), // numVarSelectorRecords\n' % len(vsdict))
1.65 +for i, k in enumerate(sorted(vsdict.keys())):
1.66 + f.write(' U24(0x%04X), U32(0), U32(%d), // varSelectorRecord[%d]\n' % (k, offsets[i], i))
1.67 +for (k, mappings) in sorted(vsdict.items()):
1.68 + f.write(' // 0x%04X\n' % k)
1.69 + f.write(' U32(%d), // numUVSMappings\n' % len(mappings))
1.70 + for (unified, compat) in sorted(mappings.items()):
1.71 + f.write(' U24(0x%04X), GLYPH(0x%04X),\n' % (unified, compat))
1.72 +f.write("""};
1.73 +
1.74 +#undef U16
1.75 +#undef U24
1.76 +#undef U32
1.77 +#undef GLYPH
1.78 +
1.79 +static_assert(sizeof sCJKCompatSVSTable == %d, "Table generator has a bug.");
1.80 +""" % length)
