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#
# genmap_tchinese.py: Traditional Chinese Codecs Map Generator
#
# Copyright (C) 2003-2004 Hye-Shik Chang <perky@FreeBSD.org>.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# $Id: genmap_tchinese.py,v 1.8 2004/07/07 15:35:45 perky Exp $
#
import sys
import re
from genmap_support import *
BIG5_C1 = (0xa1, 0xfe)
BIG5_C2 = (0x40, 0xfe)
# big5 map doesn't have 0xA3E1 (EURO SIGN), but we ignore
# that for forward compatiblilty. "Hey! we have the euro-big5!" :)
CP950_C1 = BIG5_C1
CP950_C2 = BIG5_C2
BIG5HKSCS_C1= (0x88, 0xfe)
BIG5HKSCS_C2= (0x40, 0xfe)
CNS11643_C1 = (0x21, 0x7e)
CNS11643_C2 = (0x21, 0x7e)
try:
big5map = open('BIG5.TXT')
except IOError:
print "=>> Please download mapping table from http://www.unicode." \
"org/Public/MAPPINGS/OBSOLETE/EASTASIA/OTHER/BIG5.TXT"
raise SystemExit
try:
cp950map = open('CP950.TXT')
except IOError:
print "=>> Please download mapping table from http://www.unicode." \
"org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP950.TXT"
raise SystemExit
try:
big5hkscsmap = open('big5-iso.txt')
except IOError:
print "=>> Please download mapping table from http://www.info.gov." \
"hk/digital21/eng/hkscs/download/big5-iso.txt"
raise SystemExit
try:
cns11643map = open("cns-11643-1992.ucm")
except IOError:
print "=>> Please download mapping table from http://oss.software." \
"ibm.com/cvs/icu/~checkout~/icu/source/data/mappings/cns-11643" \
"-1992.ucm"
raise SystemExit
class CNS11643MapReader(UCMReader):
def parsedata(self, data):
d = UCMReader.parsedata(self, data)
return ord(d[0]) - 0x80, (ord(d[1]) << 8) + ord(d[2])
def readmap(self):
print "Loading UCM mapping from ", self.file
decmaps = [{} for i in range(8)] # 0(placeholder) 1-7
encmap_bmp = {}
encmap_nonbmp = {}
for i, (plane, code) in self.itertokens():
if code & 0x8000: raise ValueError
if i < 0x10000:
c1i = code >> 8
encmap = encmap_bmp
elif 0x20000 <= i < 0x30000:
c1i = (code >> 8) | 0x80
i &= 0xffff
encmap = encmap_nonbmp
else:
raise ValueError, i
decmaps[plane].setdefault(c1i, {})
decmaps[plane][c1i][code & 0xff] = i
encmap.setdefault(i >> 8, {})
encmap[i >> 8][i & 0xff] = (plane, code)
return decmaps, encmap_bmp, encmap_nonbmp
def bh2s(code):
return ((code >> 8) - 0x88) * (0xfe - 0x40 + 1) + ((code & 0xff) - 0x40)
def loadhkscsmap(fo):
print "Loading from", fo
fo.seek(0, 0)
decmap = {}
encmap_bmp, encmap_nonbmp = {}, {}
isbmpmap = {}
lineparse = re.compile('^([0-9A-F]{4})\s*([0-9A-F]{4})\s*([0-9A-F]{4})\s*'
'(2?[0-9A-F]{4})$')
for line in fo:
data = lineparse.findall(line)
if not data:
continue
hkscs, u1993, ubmp, u2001 = [int(x, 16) for x in data[0]]
decmap.setdefault(hkscs >> 8, {})
if u2001 > 0xffff:
encmap = encmap_nonbmp
isbmpmap[bh2s(hkscs)] = 1
u2001 &= 0xffff
else:
encmap = encmap_bmp
decmap[hkscs >> 8][hkscs & 0xff] = u2001
encmap.setdefault(u2001 >> 8, {})
encmap[u2001 >> 8][u2001 & 0xff] = hkscs
return decmap, encmap_bmp, encmap_nonbmp, isbmpmap
print "Loading Mapping File..."
cp950decmap = loadmap(cp950map)
big5decmap = loadmap(big5map)
hkscsdecmap, hkscsencmap_bmp, hkscsencmap_nonbmp, isbmpmap = \
loadhkscsmap(big5hkscsmap)
cns11643decmaps, cns11643encmap_bmp, cns11643encmap_nonbmp = \
CNS11643MapReader(cns11643map).readmap()
# big5 mapping fix (see doc/NOTES.big5)
for m in """\
0xA15A 0x2574
0xA1C3 0xFFE3
0xA1C5 0x02CD
0xA1FE 0xFF0F
0xA240 0xFF3C
0xA2CC 0x5341
0xA2CE 0x5345""".splitlines():
bcode, ucode = map(eval, m.split())
big5decmap[bcode >> 8][bcode & 0xff] = ucode
big5encmap, cp950encmap = {}, {}
for c1, m in big5decmap.items():
for c2, code in m.items():
big5encmap.setdefault(code >> 8, {})
if not big5encmap[code >> 8].has_key(code & 0xff):
big5encmap[code >> 8][code & 0xff] = c1 << 8 | c2
for c1, m in cp950decmap.items():
for c2, code in m.items():
cp950encmap.setdefault(code >> 8, {})
if not cp950encmap[code >> 8].has_key(code & 0xff):
cp950encmap[code >> 8][code & 0xff] = c1 << 8 | c2
# fix unicode->big5 duplicated mapping priority
big5encmap[0xFF][0x0F] = 0xA241
big5encmap[0xFF][0x3C] = 0xA242
big5encmap[0x53][0x41] = 0xA451
big5encmap[0x53][0x45] = 0xA4CA
cp950encmap[0x53][0x41] = 0xA451
cp950encmap[0x53][0x45] = 0xA4CA
for c1, m in cp950encmap.items():
for c2, code in m.items():
if (big5encmap.has_key(c1) and big5encmap[c1].has_key(c2)
and big5encmap[c1][c2] == code):
del cp950encmap[c1][c2]
for c1, m in cp950decmap.items():
for c2, code in m.items():
if (big5decmap.has_key(c1) and big5decmap[c1].has_key(c2)
and big5decmap[c1][c2] == code):
del cp950decmap[c1][c2]
omap = open('mappings_tw.h', 'w')
printcopyright(omap)
print "Generating BIG5 decode map..."
filler = BufferedFiller()
genmap_decode(filler, "big5", BIG5_C1, BIG5_C2, big5decmap)
print_decmap(omap, filler, "big5", big5decmap)
print "Generating BIG5 encode map..."
filler = BufferedFiller()
genmap_encode(filler, "big5", big5encmap)
print_encmap(omap, filler, "big5", big5encmap)
print "Generating CP950 extension decode map..."
filler = BufferedFiller()
genmap_decode(filler, "cp950ext", BIG5_C1, BIG5_C2, cp950decmap)
print_decmap(omap, filler, "cp950ext", cp950decmap)
print "Generating CP950 extension encode map..."
filler = BufferedFiller()
genmap_encode(filler, "cp950ext", cp950encmap)
print_encmap(omap, filler, "cp950ext", cp950encmap)
omap = open('mappings_hk.h', 'w')
printcopyright(omap)
print "Generating BIG5HKSCS decode map..."
filler = BufferedFiller()
genmap_decode(filler, "big5hkscs", BIG5HKSCS_C1, BIG5HKSCS_C2, hkscsdecmap)
print_decmap(omap, filler, "big5hkscs", hkscsdecmap)
print "Generating BIG5HKSCS decode map Unicode plane hints..."
filler = BufferedFiller()
def fillhints(hintfrom, hintto):
print >> omap, "static const unsigned char big5hkscs_phint_%d[] = {" \
% (hintfrom)
for msbcode in range(hintfrom, hintto+1, 8):
v = 0
for c in range(msbcode, msbcode+8):
v |= isbmpmap.get(c, 0) << (c - msbcode)
filler.write('%d,' % v)
filler.printout(omap)
print >> omap, "};\n"
fillhints(bh2s(0x8840), bh2s(0xa0fe))
fillhints(bh2s(0xc6a1), bh2s(0xc8fe))
fillhints(bh2s(0xf9d6), bh2s(0xfefe))
print "Generating BIG5HKSCS encode map (BMP)..."
filler = BufferedFiller()
genmap_encode(filler, "big5hkscs_bmp", hkscsencmap_bmp)
print_encmap(omap, filler, "big5hkscs_bmp", hkscsencmap_bmp)
print "Generating BIG5HKSCS encode map (non-BMP)..."
filler = BufferedFiller()
genmap_encode(filler, "big5hkscs_nonbmp", hkscsencmap_nonbmp)
print_encmap(omap, filler, "big5hkscs_nonbmp", hkscsencmap_nonbmp)
omap = open('mappings_cns11643.h', 'w')
printcopyright(omap)
for plane in range(1, 8):
print "Generating CNS11643 plane %d decode map..." % plane
charset = "cns11643_%d" % plane
filler = BufferedFiller()
genmap_decode(filler, charset, CNS11643_C1, CNS11643_C2,
cns11643decmaps[plane])
genmap_decode(filler, charset, [x | 0x80 for x in CNS11643_C1],
CNS11643_C2, cns11643decmaps[plane])
print_decmap(omap, filler, charset, cns11643decmaps[plane])
class CNS11643EncodeMapWriter(EncodeMapWriter):
elemtype = 'unsigned char'
indextype = 'struct unim_index_bytebased'
def write_nochar(self):
self.filler.write('0,', '0,', '0,')
def write_char(self, point):
raise ValueError
def write_multic(self, point):
self.filler.write('%d,' % point[0], '%d,' % (point[1] >> 8),
'%d,' % (point[1] & 0xff))
print "Generating CNS11643 encode map (BMP)..."
CNS11643EncodeMapWriter(omap, 'cns11643_bmp', cns11643encmap_bmp)
print "Generating CNS11643 encode map (non-BMP)..."
CNS11643EncodeMapWriter(omap, 'cns11643_nonbmp', cns11643encmap_nonbmp)
print >> omap, "static const struct dbcs_index *cns11643_decmap[] = {"
print >> omap, "NULL,"
print >> omap, "\n".join(["cns11643_%d_decmap," % plane
for plane in range(1, 8)])
print >> omap, "};"
print "\nDone!"