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2cded9c3f3
They only ignore the first byte of an invalid byte sequence.
For example, b'\xff\n'.decode('gb2312', 'replace') gives '\ufffd\n' instead of
'\ufffd'.
732 lines
19 KiB
C
732 lines
19 KiB
C
/*
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* _codecs_jp.c: Codecs collection for Japanese encodings
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*
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* Written by Hye-Shik Chang <perky@FreeBSD.org>
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*/
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#define USING_BINARY_PAIR_SEARCH
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#define EMPBASE 0x20000
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#include "cjkcodecs.h"
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#include "mappings_jp.h"
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#include "mappings_jisx0213_pair.h"
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#include "alg_jisx0201.h"
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#include "emu_jisx0213_2000.h"
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/*
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* CP932 codec
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*/
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ENCODER(cp932)
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{
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while (inleft > 0) {
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Py_UNICODE c = IN1;
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DBCHAR code;
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unsigned char c1, c2;
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if (c <= 0x80) {
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WRITE1((unsigned char)c)
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NEXT(1, 1)
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continue;
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}
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else if (c >= 0xff61 && c <= 0xff9f) {
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WRITE1(c - 0xfec0)
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NEXT(1, 1)
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continue;
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}
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else if (c >= 0xf8f0 && c <= 0xf8f3) {
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/* Windows compatibility */
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REQUIRE_OUTBUF(1)
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if (c == 0xf8f0)
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OUT1(0xa0)
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else
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OUT1(c - 0xfef1 + 0xfd)
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NEXT(1, 1)
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continue;
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}
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UCS4INVALID(c)
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REQUIRE_OUTBUF(2)
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TRYMAP_ENC(cp932ext, code, c) {
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OUT1(code >> 8)
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OUT2(code & 0xff)
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}
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else TRYMAP_ENC(jisxcommon, code, c) {
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if (code & 0x8000) /* MSB set: JIS X 0212 */
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return 1;
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/* JIS X 0208 */
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c1 = code >> 8;
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c2 = code & 0xff;
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c2 = (((c1 - 0x21) & 1) ? 0x5e : 0) + (c2 - 0x21);
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c1 = (c1 - 0x21) >> 1;
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OUT1(c1 < 0x1f ? c1 + 0x81 : c1 + 0xc1)
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OUT2(c2 < 0x3f ? c2 + 0x40 : c2 + 0x41)
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}
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else if (c >= 0xe000 && c < 0xe758) {
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/* User-defined area */
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c1 = (Py_UNICODE)(c - 0xe000) / 188;
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c2 = (Py_UNICODE)(c - 0xe000) % 188;
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OUT1(c1 + 0xf0)
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OUT2(c2 < 0x3f ? c2 + 0x40 : c2 + 0x41)
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}
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else
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return 1;
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NEXT(1, 2)
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}
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return 0;
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}
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DECODER(cp932)
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{
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while (inleft > 0) {
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unsigned char c = IN1, c2;
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REQUIRE_OUTBUF(1)
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if (c <= 0x80) {
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OUT1(c)
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NEXT(1, 1)
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continue;
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}
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else if (c >= 0xa0 && c <= 0xdf) {
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if (c == 0xa0)
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OUT1(0xf8f0) /* half-width katakana */
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else
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OUT1(0xfec0 + c)
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NEXT(1, 1)
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continue;
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}
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else if (c >= 0xfd/* && c <= 0xff*/) {
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/* Windows compatibility */
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OUT1(0xf8f1 - 0xfd + c)
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NEXT(1, 1)
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continue;
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}
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REQUIRE_INBUF(2)
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c2 = IN2;
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TRYMAP_DEC(cp932ext, **outbuf, c, c2);
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else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xea)){
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if (c2 < 0x40 || (c2 > 0x7e && c2 < 0x80) || c2 > 0xfc)
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return 1;
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c = (c < 0xe0 ? c - 0x81 : c - 0xc1);
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c2 = (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41);
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c = (2 * c + (c2 < 0x5e ? 0 : 1) + 0x21);
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c2 = (c2 < 0x5e ? c2 : c2 - 0x5e) + 0x21;
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TRYMAP_DEC(jisx0208, **outbuf, c, c2);
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else return 1;
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}
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else if (c >= 0xf0 && c <= 0xf9) {
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if ((c2 >= 0x40 && c2 <= 0x7e) ||
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(c2 >= 0x80 && c2 <= 0xfc))
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OUT1(0xe000 + 188 * (c - 0xf0) +
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(c2 < 0x80 ? c2 - 0x40 : c2 - 0x41))
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else
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return 1;
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}
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else
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return 1;
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NEXT(2, 1)
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}
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return 0;
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}
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/*
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* EUC-JIS-2004 codec
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*/
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ENCODER(euc_jis_2004)
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{
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while (inleft > 0) {
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ucs4_t c = IN1;
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DBCHAR code;
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Py_ssize_t insize;
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if (c < 0x80) {
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WRITE1(c)
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NEXT(1, 1)
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continue;
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}
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DECODE_SURROGATE(c)
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insize = GET_INSIZE(c);
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if (c <= 0xFFFF) {
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EMULATE_JISX0213_2000_ENCODE_BMP(code, c)
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else TRYMAP_ENC(jisx0213_bmp, code, c) {
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if (code == MULTIC) {
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if (inleft < 2) {
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if (flags & MBENC_FLUSH) {
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code = find_pairencmap(
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(ucs2_t)c, 0,
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jisx0213_pair_encmap,
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JISX0213_ENCPAIRS);
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if (code == DBCINV)
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return 1;
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}
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else
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return MBERR_TOOFEW;
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}
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else {
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code = find_pairencmap(
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(ucs2_t)c, (*inbuf)[1],
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jisx0213_pair_encmap,
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JISX0213_ENCPAIRS);
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if (code == DBCINV) {
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code = find_pairencmap(
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(ucs2_t)c, 0,
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jisx0213_pair_encmap,
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JISX0213_ENCPAIRS);
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if (code == DBCINV)
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return 1;
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} else
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insize = 2;
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}
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}
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}
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else TRYMAP_ENC(jisxcommon, code, c);
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else if (c >= 0xff61 && c <= 0xff9f) {
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/* JIS X 0201 half-width katakana */
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WRITE2(0x8e, c - 0xfec0)
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NEXT(1, 2)
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continue;
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}
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else if (c == 0xff3c)
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/* F/W REVERSE SOLIDUS (see NOTES) */
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code = 0x2140;
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else if (c == 0xff5e)
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/* F/W TILDE (see NOTES) */
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code = 0x2232;
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else
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return 1;
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}
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else if (c >> 16 == EMPBASE >> 16) {
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EMULATE_JISX0213_2000_ENCODE_EMP(code, c)
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else TRYMAP_ENC(jisx0213_emp, code, c & 0xffff);
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else return insize;
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}
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else
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return insize;
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if (code & 0x8000) {
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/* Codeset 2 */
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WRITE3(0x8f, code >> 8, (code & 0xFF) | 0x80)
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NEXT(insize, 3)
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} else {
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/* Codeset 1 */
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WRITE2((code >> 8) | 0x80, (code & 0xFF) | 0x80)
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NEXT(insize, 2)
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}
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}
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return 0;
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}
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DECODER(euc_jis_2004)
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{
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while (inleft > 0) {
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unsigned char c = IN1;
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ucs4_t code;
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REQUIRE_OUTBUF(1)
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if (c < 0x80) {
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OUT1(c)
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NEXT(1, 1)
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continue;
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}
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if (c == 0x8e) {
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/* JIS X 0201 half-width katakana */
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unsigned char c2;
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REQUIRE_INBUF(2)
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c2 = IN2;
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if (c2 >= 0xa1 && c2 <= 0xdf) {
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OUT1(0xfec0 + c2)
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NEXT(2, 1)
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}
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else
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return 1;
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}
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else if (c == 0x8f) {
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unsigned char c2, c3;
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REQUIRE_INBUF(3)
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c2 = IN2 ^ 0x80;
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c3 = IN3 ^ 0x80;
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/* JIS X 0213 Plane 2 or JIS X 0212 (see NOTES) */
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EMULATE_JISX0213_2000_DECODE_PLANE2(**outbuf, c2, c3)
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else TRYMAP_DEC(jisx0213_2_bmp, **outbuf, c2, c3) ;
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else TRYMAP_DEC(jisx0213_2_emp, code, c2, c3) {
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WRITEUCS4(EMPBASE | code)
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NEXT_IN(3)
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continue;
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}
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else TRYMAP_DEC(jisx0212, **outbuf, c2, c3) ;
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else return 1;
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NEXT(3, 1)
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}
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else {
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unsigned char c2;
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REQUIRE_INBUF(2)
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c ^= 0x80;
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c2 = IN2 ^ 0x80;
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/* JIS X 0213 Plane 1 */
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EMULATE_JISX0213_2000_DECODE_PLANE1(**outbuf, c, c2)
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else if (c == 0x21 && c2 == 0x40) **outbuf = 0xff3c;
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else if (c == 0x22 && c2 == 0x32) **outbuf = 0xff5e;
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else TRYMAP_DEC(jisx0208, **outbuf, c, c2);
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else TRYMAP_DEC(jisx0213_1_bmp, **outbuf, c, c2);
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else TRYMAP_DEC(jisx0213_1_emp, code, c, c2) {
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WRITEUCS4(EMPBASE | code)
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NEXT_IN(2)
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continue;
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}
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else TRYMAP_DEC(jisx0213_pair, code, c, c2) {
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WRITE2(code >> 16, code & 0xffff)
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NEXT(2, 2)
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continue;
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}
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else return 1;
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NEXT(2, 1)
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}
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}
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return 0;
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}
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/*
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* EUC-JP codec
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*/
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ENCODER(euc_jp)
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{
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while (inleft > 0) {
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Py_UNICODE c = IN1;
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DBCHAR code;
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if (c < 0x80) {
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WRITE1((unsigned char)c)
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NEXT(1, 1)
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continue;
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}
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UCS4INVALID(c)
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TRYMAP_ENC(jisxcommon, code, c);
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else if (c >= 0xff61 && c <= 0xff9f) {
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/* JIS X 0201 half-width katakana */
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WRITE2(0x8e, c - 0xfec0)
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NEXT(1, 2)
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continue;
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}
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#ifndef STRICT_BUILD
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else if (c == 0xff3c) /* FULL-WIDTH REVERSE SOLIDUS */
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code = 0x2140;
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else if (c == 0xa5) { /* YEN SIGN */
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WRITE1(0x5c);
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NEXT(1, 1)
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continue;
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} else if (c == 0x203e) { /* OVERLINE */
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WRITE1(0x7e);
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NEXT(1, 1)
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continue;
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}
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#endif
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else
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return 1;
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if (code & 0x8000) {
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/* JIS X 0212 */
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WRITE3(0x8f, code >> 8, (code & 0xFF) | 0x80)
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NEXT(1, 3)
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} else {
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/* JIS X 0208 */
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WRITE2((code >> 8) | 0x80, (code & 0xFF) | 0x80)
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NEXT(1, 2)
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}
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}
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return 0;
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}
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DECODER(euc_jp)
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{
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while (inleft > 0) {
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unsigned char c = IN1;
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REQUIRE_OUTBUF(1)
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if (c < 0x80) {
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OUT1(c)
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NEXT(1, 1)
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continue;
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}
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if (c == 0x8e) {
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/* JIS X 0201 half-width katakana */
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unsigned char c2;
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REQUIRE_INBUF(2)
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c2 = IN2;
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if (c2 >= 0xa1 && c2 <= 0xdf) {
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OUT1(0xfec0 + c2)
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NEXT(2, 1)
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}
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else
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return 1;
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}
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else if (c == 0x8f) {
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unsigned char c2, c3;
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REQUIRE_INBUF(3)
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c2 = IN2;
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c3 = IN3;
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/* JIS X 0212 */
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TRYMAP_DEC(jisx0212, **outbuf, c2 ^ 0x80, c3 ^ 0x80) {
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NEXT(3, 1)
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}
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else
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return 1;
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}
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else {
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unsigned char c2;
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REQUIRE_INBUF(2)
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c2 = IN2;
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/* JIS X 0208 */
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#ifndef STRICT_BUILD
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if (c == 0xa1 && c2 == 0xc0)
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/* FULL-WIDTH REVERSE SOLIDUS */
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**outbuf = 0xff3c;
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else
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#endif
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TRYMAP_DEC(jisx0208, **outbuf,
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c ^ 0x80, c2 ^ 0x80) ;
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else return 1;
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NEXT(2, 1)
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}
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}
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return 0;
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}
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/*
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* SHIFT_JIS codec
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*/
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ENCODER(shift_jis)
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{
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while (inleft > 0) {
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Py_UNICODE c = IN1;
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DBCHAR code;
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unsigned char c1, c2;
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#ifdef STRICT_BUILD
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JISX0201_R_ENCODE(c, code)
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#else
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if (c < 0x80) code = c;
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else if (c == 0x00a5) code = 0x5c; /* YEN SIGN */
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else if (c == 0x203e) code = 0x7e; /* OVERLINE */
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#endif
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else JISX0201_K_ENCODE(c, code)
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else UCS4INVALID(c)
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else code = NOCHAR;
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if (code < 0x80 || (code >= 0xa1 && code <= 0xdf)) {
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REQUIRE_OUTBUF(1)
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OUT1((unsigned char)code)
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NEXT(1, 1)
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continue;
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}
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REQUIRE_OUTBUF(2)
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if (code == NOCHAR) {
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TRYMAP_ENC(jisxcommon, code, c);
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#ifndef STRICT_BUILD
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else if (c == 0xff3c)
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code = 0x2140; /* FULL-WIDTH REVERSE SOLIDUS */
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#endif
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else
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return 1;
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if (code & 0x8000) /* MSB set: JIS X 0212 */
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return 1;
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}
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c1 = code >> 8;
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c2 = code & 0xff;
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c2 = (((c1 - 0x21) & 1) ? 0x5e : 0) + (c2 - 0x21);
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c1 = (c1 - 0x21) >> 1;
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OUT1(c1 < 0x1f ? c1 + 0x81 : c1 + 0xc1)
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OUT2(c2 < 0x3f ? c2 + 0x40 : c2 + 0x41)
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NEXT(1, 2)
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}
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return 0;
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}
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DECODER(shift_jis)
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{
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while (inleft > 0) {
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unsigned char c = IN1;
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REQUIRE_OUTBUF(1)
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#ifdef STRICT_BUILD
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JISX0201_R_DECODE(c, **outbuf)
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#else
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if (c < 0x80) **outbuf = c;
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#endif
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else JISX0201_K_DECODE(c, **outbuf)
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else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xea)){
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unsigned char c1, c2;
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REQUIRE_INBUF(2)
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c2 = IN2;
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if (c2 < 0x40 || (c2 > 0x7e && c2 < 0x80) || c2 > 0xfc)
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return 1;
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c1 = (c < 0xe0 ? c - 0x81 : c - 0xc1);
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c2 = (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41);
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c1 = (2 * c1 + (c2 < 0x5e ? 0 : 1) + 0x21);
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c2 = (c2 < 0x5e ? c2 : c2 - 0x5e) + 0x21;
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#ifndef STRICT_BUILD
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if (c1 == 0x21 && c2 == 0x40) {
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/* FULL-WIDTH REVERSE SOLIDUS */
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OUT1(0xff3c)
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NEXT(2, 1)
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continue;
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}
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#endif
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TRYMAP_DEC(jisx0208, **outbuf, c1, c2) {
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NEXT(2, 1)
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continue;
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}
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else
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return 1;
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}
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else
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return 1;
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NEXT(1, 1) /* JIS X 0201 */
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}
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return 0;
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}
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/*
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* SHIFT_JIS-2004 codec
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*/
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ENCODER(shift_jis_2004)
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{
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while (inleft > 0) {
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ucs4_t c = IN1;
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DBCHAR code = NOCHAR;
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int c1, c2;
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Py_ssize_t insize;
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JISX0201_ENCODE(c, code)
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else DECODE_SURROGATE(c)
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if (code < 0x80 || (code >= 0xa1 && code <= 0xdf)) {
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WRITE1((unsigned char)code)
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NEXT(1, 1)
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continue;
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}
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REQUIRE_OUTBUF(2)
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insize = GET_INSIZE(c);
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if (code == NOCHAR) {
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if (c <= 0xffff) {
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EMULATE_JISX0213_2000_ENCODE_BMP(code, c)
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else TRYMAP_ENC(jisx0213_bmp, code, c) {
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if (code == MULTIC) {
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if (inleft < 2) {
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if (flags & MBENC_FLUSH) {
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code = find_pairencmap
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((ucs2_t)c, 0,
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jisx0213_pair_encmap,
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JISX0213_ENCPAIRS);
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if (code == DBCINV)
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return 1;
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}
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else
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return MBERR_TOOFEW;
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}
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else {
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code = find_pairencmap(
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(ucs2_t)c, IN2,
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jisx0213_pair_encmap,
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JISX0213_ENCPAIRS);
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if (code == DBCINV) {
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code = find_pairencmap(
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(ucs2_t)c, 0,
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jisx0213_pair_encmap,
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JISX0213_ENCPAIRS);
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if (code == DBCINV)
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return 1;
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}
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else
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insize = 2;
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}
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}
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}
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else TRYMAP_ENC(jisxcommon, code, c) {
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/* abandon JIS X 0212 codes */
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if (code & 0x8000)
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return 1;
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}
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else return 1;
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}
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else if (c >> 16 == EMPBASE >> 16) {
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EMULATE_JISX0213_2000_ENCODE_EMP(code, c)
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else TRYMAP_ENC(jisx0213_emp, code, c&0xffff);
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else return insize;
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}
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else
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return insize;
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}
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c1 = code >> 8;
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c2 = (code & 0xff) - 0x21;
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if (c1 & 0x80) { /* Plane 2 */
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if (c1 >= 0xee) c1 -= 0x87;
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else if (c1 >= 0xac || c1 == 0xa8) c1 -= 0x49;
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else c1 -= 0x43;
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}
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else /* Plane 1 */
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c1 -= 0x21;
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if (c1 & 1) c2 += 0x5e;
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c1 >>= 1;
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OUT1(c1 + (c1 < 0x1f ? 0x81 : 0xc1))
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OUT2(c2 + (c2 < 0x3f ? 0x40 : 0x41))
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NEXT(insize, 2)
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}
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return 0;
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}
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DECODER(shift_jis_2004)
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{
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while (inleft > 0) {
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unsigned char c = IN1;
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REQUIRE_OUTBUF(1)
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JISX0201_DECODE(c, **outbuf)
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else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xfc)){
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unsigned char c1, c2;
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ucs4_t code;
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REQUIRE_INBUF(2)
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c2 = IN2;
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if (c2 < 0x40 || (c2 > 0x7e && c2 < 0x80) || c2 > 0xfc)
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return 1;
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c1 = (c < 0xe0 ? c - 0x81 : c - 0xc1);
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c2 = (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41);
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c1 = (2 * c1 + (c2 < 0x5e ? 0 : 1));
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c2 = (c2 < 0x5e ? c2 : c2 - 0x5e) + 0x21;
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if (c1 < 0x5e) { /* Plane 1 */
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c1 += 0x21;
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EMULATE_JISX0213_2000_DECODE_PLANE1(**outbuf,
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c1, c2)
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else TRYMAP_DEC(jisx0208, **outbuf, c1, c2) {
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NEXT_OUT(1)
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}
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else TRYMAP_DEC(jisx0213_1_bmp, **outbuf,
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c1, c2) {
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NEXT_OUT(1)
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}
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else TRYMAP_DEC(jisx0213_1_emp, code, c1, c2) {
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WRITEUCS4(EMPBASE | code)
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}
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else TRYMAP_DEC(jisx0213_pair, code, c1, c2) {
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WRITE2(code >> 16, code & 0xffff)
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NEXT_OUT(2)
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}
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else
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return 1;
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NEXT_IN(2)
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}
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else { /* Plane 2 */
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if (c1 >= 0x67) c1 += 0x07;
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else if (c1 >= 0x63 || c1 == 0x5f) c1 -= 0x37;
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else c1 -= 0x3d;
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EMULATE_JISX0213_2000_DECODE_PLANE2(**outbuf,
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c1, c2)
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else TRYMAP_DEC(jisx0213_2_bmp, **outbuf,
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c1, c2) ;
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else TRYMAP_DEC(jisx0213_2_emp, code, c1, c2) {
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WRITEUCS4(EMPBASE | code)
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NEXT_IN(2)
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continue;
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}
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else
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return 1;
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NEXT(2, 1)
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}
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continue;
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}
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else
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return 1;
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NEXT(1, 1) /* JIS X 0201 */
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}
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return 0;
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}
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BEGIN_MAPPINGS_LIST
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MAPPING_DECONLY(jisx0208)
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MAPPING_DECONLY(jisx0212)
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MAPPING_ENCONLY(jisxcommon)
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MAPPING_DECONLY(jisx0213_1_bmp)
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MAPPING_DECONLY(jisx0213_2_bmp)
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MAPPING_ENCONLY(jisx0213_bmp)
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MAPPING_DECONLY(jisx0213_1_emp)
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MAPPING_DECONLY(jisx0213_2_emp)
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MAPPING_ENCONLY(jisx0213_emp)
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MAPPING_ENCDEC(jisx0213_pair)
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MAPPING_ENCDEC(cp932ext)
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END_MAPPINGS_LIST
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BEGIN_CODECS_LIST
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CODEC_STATELESS(shift_jis)
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CODEC_STATELESS(cp932)
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CODEC_STATELESS(euc_jp)
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CODEC_STATELESS(shift_jis_2004)
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CODEC_STATELESS(euc_jis_2004)
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{ "euc_jisx0213", (void *)2000, NULL, _STATELESS_METHODS(euc_jis_2004) },
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{ "shift_jisx0213", (void *)2000, NULL, _STATELESS_METHODS(shift_jis_2004) },
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END_CODECS_LIST
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I_AM_A_MODULE_FOR(jp)
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