| # |
| # genmap_schinese.py: Simplified Chinese Codecs Map Generator |
| # |
| # Original Author: Hye-Shik Chang <perky@FreeBSD.org> |
| # Modified Author: Dong-hee Na <donghee.na92@gmail.com> |
| # |
| import os |
| import re |
| |
| from genmap_support import * |
| |
| |
| GB2312_C1 = (0x21, 0x7e) |
| GB2312_C2 = (0x21, 0x7e) |
| GBKL1_C1 = (0x81, 0xa8) |
| GBKL1_C2 = (0x40, 0xfe) |
| GBKL2_C1 = (0xa9, 0xfe) |
| GBKL2_C2 = (0x40, 0xa0) |
| GB18030EXTP1_C1 = (0xa1, 0xa9) |
| GB18030EXTP1_C2 = (0x40, 0xfe) |
| GB18030EXTP2_C1 = (0xaa, 0xaf) |
| GB18030EXTP2_C2 = (0xa1, 0xfe) |
| GB18030EXTP3_C1 = (0xd7, 0xd7) |
| GB18030EXTP3_C2 = (0xfa, 0xfe) |
| GB18030EXTP4_C1 = (0xf8, 0xfd) |
| GB18030EXTP4_C2 = (0xa1, 0xfe) |
| GB18030EXTP5_C1 = (0xfe, 0xfe) |
| GB18030EXTP5_C2 = (0x50, 0xfe) |
| |
| MAPPINGS_GB2312 = 'http://people.freebsd.org/~perky/i18n/GB2312.TXT' |
| MAPPINGS_CP936 = 'http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP936.TXT' |
| MAPPINGS_GB18030 = 'http://oss.software.ibm.com/cvs/icu/~checkout~/charset/data/xml/gb-18030-2000.xml' |
| |
| re_gb18030ass = re.compile('<a u="([A-F0-9]{4})" b="([0-9A-F ]+)"/>') |
| |
| |
| def parse_gb18030map(fo): |
| m, gbuni = {}, {} |
| for i in range(65536): |
| if i < 0xd800 or i > 0xdfff: # exclude unicode surrogate area |
| gbuni[i] = None |
| for uni, native in re_gb18030ass.findall(fo.read()): |
| uni = eval('0x'+uni) |
| native = [eval('0x'+u) for u in native.split()] |
| if len(native) <= 2: |
| del gbuni[uni] |
| if len(native) == 2: # we can decode algorithmically for 1 or 4 bytes |
| m.setdefault(native[0], {}) |
| m[native[0]][native[1]] = uni |
| gbuni = [k for k in gbuni.keys()] |
| gbuni.sort() |
| return m, gbuni |
| |
| def main(): |
| print("Loading Mapping File...") |
| gb2312map = open_mapping_file('python-mappings/GB2312.TXT', MAPPINGS_GB2312) |
| cp936map = open_mapping_file('python-mappings/CP936.TXT', MAPPINGS_CP936) |
| gb18030map = open_mapping_file('python-mappings/gb-18030-2000.xml', MAPPINGS_GB18030) |
| |
| gb18030decmap, gb18030unilinear = parse_gb18030map(gb18030map) |
| gbkdecmap = loadmap(cp936map) |
| gb2312decmap = loadmap(gb2312map) |
| difmap = {} |
| for c1, m in gbkdecmap.items(): |
| for c2, code in m.items(): |
| del gb18030decmap[c1][c2] |
| if not gb18030decmap[c1]: |
| del gb18030decmap[c1] |
| for c1, m in gb2312decmap.items(): |
| for c2, code in m.items(): |
| gbkc1, gbkc2 = c1 | 0x80, c2 | 0x80 |
| if gbkdecmap[gbkc1][gbkc2] == code: |
| del gbkdecmap[gbkc1][gbkc2] |
| if not gbkdecmap[gbkc1]: |
| del gbkdecmap[gbkc1] |
| |
| gb2312_gbkencmap, gb18030encmap = {}, {} |
| for c1, m in gbkdecmap.items(): |
| for c2, code in m.items(): |
| gb2312_gbkencmap.setdefault(code >> 8, {}) |
| gb2312_gbkencmap[code >> 8][code & 0xff] = c1 << 8 | c2 # MSB set |
| for c1, m in gb2312decmap.items(): |
| for c2, code in m.items(): |
| gb2312_gbkencmap.setdefault(code >> 8, {}) |
| gb2312_gbkencmap[code >> 8][code & 0xff] = c1 << 8 | c2 # MSB unset |
| for c1, m in gb18030decmap.items(): |
| for c2, code in m.items(): |
| gb18030encmap.setdefault(code >> 8, {}) |
| gb18030encmap[code >> 8][code & 0xff] = c1 << 8 | c2 |
| |
| with open('mappings_cn.h', 'w') as fp: |
| print_autogen(fp, os.path.basename(__file__)) |
| |
| print("Generating GB2312 decode map...") |
| writer = DecodeMapWriter(fp, "gb2312", gb2312decmap) |
| writer.update_decode_map(GB2312_C1, GB2312_C2) |
| writer.generate() |
| |
| print("Generating GBK decode map...") |
| writer = DecodeMapWriter(fp, "gbkext", gbkdecmap) |
| writer.update_decode_map(GBKL1_C1, GBKL1_C2) |
| writer.update_decode_map(GBKL2_C1, GBKL2_C2) |
| writer.generate() |
| |
| print("Generating GB2312 && GBK encode map...") |
| writer = EncodeMapWriter(fp, "gbcommon", gb2312_gbkencmap) |
| writer.generate() |
| |
| print("Generating GB18030 extension decode map...") |
| writer = DecodeMapWriter(fp, "gb18030ext", gb18030decmap) |
| for i in range(1, 6): |
| writer.update_decode_map(eval("GB18030EXTP%d_C1" % i), eval("GB18030EXTP%d_C2" % i)) |
| |
| writer.generate() |
| |
| print("Generating GB18030 extension encode map...") |
| writer = EncodeMapWriter(fp, "gb18030ext", gb18030encmap) |
| writer.generate() |
| |
| print("Generating GB18030 Unicode BMP Mapping Ranges...") |
| ranges = [[-1, -1, -1]] |
| gblinnum = 0 |
| fp.write(""" |
| static const struct _gb18030_to_unibmp_ranges { |
| Py_UCS4 first, last; |
| DBCHAR base; |
| } gb18030_to_unibmp_ranges[] = { |
| """) |
| |
| for uni in gb18030unilinear: |
| if uni == ranges[-1][1] + 1: |
| ranges[-1][1] = uni |
| else: |
| ranges.append([uni, uni, gblinnum]) |
| gblinnum += 1 |
| |
| filler = BufferedFiller() |
| for first, last, base in ranges[1:]: |
| filler.write('{', str(first), ',', str(last), ',', str(base), '},') |
| |
| filler.write('{', '0,', '0,', str( |
| ranges[-1][2] + ranges[-1][1] - ranges[-1][0] + 1), '}', '};') |
| filler.printout(fp) |
| |
| print("Done!") |
| |
| |
| if __name__ == '__main__': |
| main() |