| 42 | |
| 43 | |
| 44 | class DecodeMapWriter: |
| 45 | filler_class = BufferedFiller |
| 46 | |
| 47 | def __init__(self, fp, prefix, decode_map): |
| 48 | self.fp = fp |
| 49 | self.prefix = prefix |
| 50 | self.decode_map = decode_map |
| 51 | self.filler = self.filler_class() |
| 52 | |
| 53 | def update_decode_map(self, c1range, c2range, onlymask=(), wide=0): |
| 54 | c2values = range(c2range[0], c2range[1] + 1) |
| 55 | |
| 56 | for c1 in range(c1range[0], c1range[1] + 1): |
| 57 | if c1 not in self.decode_map or (onlymask and c1 not in onlymask): |
| 58 | continue |
| 59 | c2map = self.decode_map[c1] |
| 60 | rc2values = [n for n in c2values if n in c2map] |
| 61 | if not rc2values: |
| 62 | continue |
| 63 | |
| 64 | c2map[self.prefix] = True |
| 65 | c2map['min'] = rc2values[0] |
| 66 | c2map['max'] = rc2values[-1] |
| 67 | c2map['midx'] = len(self.filler) |
| 68 | |
| 69 | for v in range(rc2values[0], rc2values[-1] + 1): |
| 70 | if v in c2map: |
| 71 | self.filler.write('%d,' % c2map[v]) |
| 72 | else: |
| 73 | self.filler.write('U,') |
| 74 | |
| 75 | def generate(self, wide=False): |
| 76 | if not wide: |
| 77 | self.fp.write(f"static const ucs2_t __{self.prefix}_decmap[{len(self.filler)}] = {{\n") |
| 78 | else: |
| 79 | self.fp.write(f"static const Py_UCS4 __{self.prefix}_decmap[{len(self.filler)}] = {{\n") |
| 80 | |
| 81 | self.filler.printout(self.fp) |
| 82 | self.fp.write("};\n\n") |
| 83 | |
| 84 | if not wide: |
| 85 | self.fp.write(f"static const struct dbcs_index {self.prefix}_decmap[256] = {{\n") |
| 86 | else: |
| 87 | self.fp.write(f"static const struct widedbcs_index {self.prefix}_decmap[256] = {{\n") |
| 88 | |
| 89 | for i in range(256): |
| 90 | if i in self.decode_map and self.prefix in self.decode_map[i]: |
| 91 | m = self.decode_map |
| 92 | prefix = self.prefix |
| 93 | else: |
| 94 | self.filler.write("{", "0,", "0,", "0", "},") |
| 95 | continue |
| 96 | |
| 97 | self.filler.write("{", "__%s_decmap" % prefix, "+", "%d" % m[i]['midx'], |
| 98 | ",", "%d," % m[i]['min'], "%d" % m[i]['max'], "},") |
| 99 | self.filler.printout(self.fp) |
| 100 | self.fp.write("};\n\n") |
| 101 |
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