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author | sereglond <sereglond@yandex-team.ru> | 2022-02-10 16:47:47 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:47:47 +0300 |
commit | 73bb02f2495181e0719a800f979df508924f4b71 (patch) | |
tree | c0748b5dcbade83af788c0abfa89c0383d6b779c /contrib/libs/libiconv/tcvn.h | |
parent | eb3d925534734c808602b31b38b953677f0a279f (diff) | |
download | ydb-73bb02f2495181e0719a800f979df508924f4b71.tar.gz |
Restoring authorship annotation for <sereglond@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/libiconv/tcvn.h')
-rw-r--r-- | contrib/libs/libiconv/tcvn.h | 582 |
1 files changed, 291 insertions, 291 deletions
diff --git a/contrib/libs/libiconv/tcvn.h b/contrib/libs/libiconv/tcvn.h index ae9f264c2b..abd5def22c 100644 --- a/contrib/libs/libiconv/tcvn.h +++ b/contrib/libs/libiconv/tcvn.h @@ -1,291 +1,291 @@ -/* - * Copyright (C) 1999-2002, 2004 Free Software Foundation, Inc. - * This file is part of the GNU LIBICONV Library. - * - * The GNU LIBICONV Library is free software; you can redistribute it - * and/or modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * The GNU LIBICONV Library is distributed in the hope that it will be - * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with the GNU LIBICONV Library; see the file COPYING.LIB. - * If not, write to the Free Software Foundation, Inc., 51 Franklin Street, - * Fifth Floor, Boston, MA 02110-1301, USA. - */ - -/* - * TCVN-5712 - */ - -#include "flushwc.h" -#include "vietcomb.h" - -static const unsigned char tcvn_comb_table[] = { - 0xb0, 0xb3, 0xb2, 0xb1, 0xb4, -}; - -/* The possible bases in viet_comp_table_data: - 0x0041..0x0045, 0x0047..0x0049, 0x004B..0x0050, 0x0052..0x0057, - 0x0059..0x005A, 0x0061..0x0065, 0x0067..0x0069, 0x006B..0x0070, - 0x0072..0x0077, 0x0079..0x007A, 0x00A5, 0x00C2, 0x00CA, 0x00D3..0x00D6, - 0x00DA, 0x00E2, 0x00EA, 0x00F3..0x00F6, 0x00FA, 0x0102..0x0103, - 0x0168..0x0169, 0x01A0..0x01A1, 0x01AF..0x01B0. */ -static const unsigned int tcvn_comp_bases[] = { - 0x06fdfbbe, 0x06fdfbbe, 0x00000000, 0x00000020, 0x04780404, 0x04780404, - 0x0000000c, 0x00000000, 0x00000000, 0x00000300, 0x00000000, 0x00018003 -}; - -static const unsigned short tcvn_2uni_1[24] = { - /* 0x00 */ - 0x0000, 0x00da, 0x1ee4, 0x0003, 0x1eea, 0x1eec, 0x1eee, 0x0007, - 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f, - /* 0x10 */ - 0x0010, 0x1ee8, 0x1ef0, 0x1ef2, 0x1ef6, 0x1ef8, 0x00dd, 0x1ef4, -}; -static const unsigned short tcvn_2uni_2[128] = { - /* 0x80 */ - 0x00c0, 0x1ea2, 0x00c3, 0x00c1, 0x1ea0, 0x1eb6, 0x1eac, 0x00c8, - 0x1eba, 0x1ebc, 0x00c9, 0x1eb8, 0x1ec6, 0x00cc, 0x1ec8, 0x0128, - /* 0x90 */ - 0x00cd, 0x1eca, 0x00d2, 0x1ece, 0x00d5, 0x00d3, 0x1ecc, 0x1ed8, - 0x1edc, 0x1ede, 0x1ee0, 0x1eda, 0x1ee2, 0x00d9, 0x1ee6, 0x0168, - /* 0xa0 */ - 0x00a0, 0x0102, 0x00c2, 0x00ca, 0x00d4, 0x01a0, 0x01af, 0x0110, - 0x0103, 0x00e2, 0x00ea, 0x00f4, 0x01a1, 0x01b0, 0x0111, 0x1eb0, - /* 0xb0 */ - 0x0300, 0x0309, 0x0303, 0x0301, 0x0323, 0x00e0, 0x1ea3, 0x00e3, - 0x00e1, 0x1ea1, 0x1eb2, 0x1eb1, 0x1eb3, 0x1eb5, 0x1eaf, 0x1eb4, - /* 0xc0 */ - 0x1eae, 0x1ea6, 0x1ea8, 0x1eaa, 0x1ea4, 0x1ec0, 0x1eb7, 0x1ea7, - 0x1ea9, 0x1eab, 0x1ea5, 0x1ead, 0x00e8, 0x1ec2, 0x1ebb, 0x1ebd, - /* 0xd0 */ - 0x00e9, 0x1eb9, 0x1ec1, 0x1ec3, 0x1ec5, 0x1ebf, 0x1ec7, 0x00ec, - 0x1ec9, 0x1ec4, 0x1ebe, 0x1ed2, 0x0129, 0x00ed, 0x1ecb, 0x00f2, - /* 0xe0 */ - 0x1ed4, 0x1ecf, 0x00f5, 0x00f3, 0x1ecd, 0x1ed3, 0x1ed5, 0x1ed7, - 0x1ed1, 0x1ed9, 0x1edd, 0x1edf, 0x1ee1, 0x1edb, 0x1ee3, 0x00f9, - /* 0xf0 */ - 0x1ed6, 0x1ee7, 0x0169, 0x00fa, 0x1ee5, 0x1eeb, 0x1eed, 0x1eef, - 0x1ee9, 0x1ef1, 0x1ef3, 0x1ef7, 0x1ef9, 0x00fd, 0x1ef5, 0x1ed0, -}; - -/* In the TCVN to Unicode direction, the state contains a buffered - character, or 0 if none. */ - -static int -tcvn_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) -{ - unsigned char c = *s; - unsigned short wc; - unsigned short last_wc; - if (c < 0x18) - wc = tcvn_2uni_1[c]; - else if (c < 0x80) - wc = c; - else - wc = tcvn_2uni_2[c-0x80]; - last_wc = conv->istate; - if (last_wc) { - if (wc >= 0x0300 && wc < 0x0340) { - /* See whether last_wc and wc can be combined. */ - unsigned int k; - unsigned int i1, i2; - switch (wc) { - case 0x0300: k = 0; break; - case 0x0301: k = 1; break; - case 0x0303: k = 2; break; - case 0x0309: k = 3; break; - case 0x0323: k = 4; break; - default: abort(); - } - i1 = viet_comp_table[k].idx; - i2 = i1 + viet_comp_table[k].len-1; - if (last_wc >= viet_comp_table_data[i1].base - && last_wc <= viet_comp_table_data[i2].base) { - unsigned int i; - for (;;) { - i = (i1+i2)>>1; - if (last_wc == viet_comp_table_data[i].base) - break; - if (last_wc < viet_comp_table_data[i].base) { - if (i1 == i) - goto not_combining; - i2 = i; - } else { - if (i1 != i) - i1 = i; - else { - i = i2; - if (last_wc == viet_comp_table_data[i].base) - break; - goto not_combining; - } - } - } - last_wc = viet_comp_table_data[i].composed; - /* Output the combined character. */ - conv->istate = 0; - *pwc = (ucs4_t) last_wc; - return 1; - } - } - not_combining: - /* Output the buffered character. */ - conv->istate = 0; - *pwc = (ucs4_t) last_wc; - return 0; /* Don't advance the input pointer. */ - } - if (wc >= 0x0041 && wc <= 0x01b0 - && ((tcvn_comp_bases[(wc - 0x0040) >> 5] >> (wc & 0x1f)) & 1)) { - /* wc is a possible match in viet_comp_table_data. Buffer it. */ - conv->istate = wc; - return RET_TOOFEW(1); - } else { - /* Output wc immediately. */ - *pwc = (ucs4_t) wc; - return 1; - } -} - -#define tcvn_flushwc normal_flushwc - -static const unsigned char tcvn_page00[96+184] = { - 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */ - 0x80, 0x83, 0xa2, 0x82, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */ - 0x87, 0x8a, 0xa3, 0x00, 0x8d, 0x90, 0x00, 0x00, /* 0xc8-0xcf */ - 0x00, 0x00, 0x92, 0x95, 0xa4, 0x94, 0x00, 0x00, /* 0xd0-0xd7 */ - 0x00, 0x9d, 0x01, 0x00, 0x00, 0x16, 0x00, 0x00, /* 0xd8-0xdf */ - 0xb5, 0xb8, 0xa9, 0xb7, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */ - 0xcc, 0xd0, 0xaa, 0x00, 0xd7, 0xdd, 0x00, 0x00, /* 0xe8-0xef */ - 0x00, 0x00, 0xdf, 0xe3, 0xab, 0xe2, 0x00, 0x00, /* 0xf0-0xf7 */ - 0x00, 0xef, 0xf3, 0x00, 0x00, 0xfd, 0x00, 0x00, /* 0xf8-0xff */ - /* 0x0100 */ - 0x00, 0x00, 0xa1, 0xa8, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */ - 0xa7, 0xae, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */ - 0x8f, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */ - 0x9f, 0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */ - 0xa5, 0xac, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa6, /* 0xa8-0xaf */ - 0xad, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */ -}; -static const unsigned char tcvn_page03[40] = { - 0xb0, 0xb3, 0x00, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */ - 0x00, 0xb1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */ - 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */ -}; -static const unsigned char tcvn_page1e[96] = { - 0x84, 0xb9, 0x81, 0xb6, 0xc4, 0xca, 0xc1, 0xc7, /* 0xa0-0xa7 */ - 0xc2, 0xc8, 0xc3, 0xc9, 0x86, 0xcb, 0xc0, 0xbe, /* 0xa8-0xaf */ - 0xaf, 0xbb, 0xba, 0xbc, 0xbf, 0xbd, 0x85, 0xc6, /* 0xb0-0xb7 */ - 0x8b, 0xd1, 0x88, 0xce, 0x89, 0xcf, 0xda, 0xd5, /* 0xb8-0xbf */ - 0xc5, 0xd2, 0xcd, 0xd3, 0xd9, 0xd4, 0x8c, 0xd6, /* 0xc0-0xc7 */ - 0x8e, 0xd8, 0x91, 0xde, 0x96, 0xe4, 0x93, 0xe1, /* 0xc8-0xcf */ - 0xff, 0xe8, 0xdb, 0xe5, 0xe0, 0xe6, 0xf0, 0xe7, /* 0xd0-0xd7 */ - 0x97, 0xe9, 0x9b, 0xed, 0x98, 0xea, 0x99, 0xeb, /* 0xd8-0xdf */ - 0x9a, 0xec, 0x9c, 0xee, 0x02, 0xf4, 0x9e, 0xf1, /* 0xe0-0xe7 */ - 0x11, 0xf8, 0x04, 0xf5, 0x05, 0xf6, 0x06, 0xf7, /* 0xe8-0xef */ - 0x12, 0xf9, 0x13, 0xfa, 0x17, 0xfe, 0x14, 0xfb, /* 0xf0-0xf7 */ - 0x15, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */ -}; - -static int -tcvn_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) -{ - unsigned char c = 0; - if (wc < 0x0080 && (wc >= 0x0020 || (0x00fe0076 & (1 << wc)) == 0)) { - *r = wc; - return 1; - } - else if (wc >= 0x00a0 && wc < 0x01b8) - c = tcvn_page00[wc-0x00a0]; - else if (wc >= 0x0300 && wc < 0x0328) - c = tcvn_page03[wc-0x0300]; - else if (wc >= 0x0340 && wc < 0x0342) /* deprecated Vietnamese tone marks */ - c = tcvn_page03[wc-0x0340]; - else if (wc >= 0x1ea0 && wc < 0x1f00) - c = tcvn_page1e[wc-0x1ea0]; - if (c != 0) { - *r = c; - return 1; - } - /* Try compatibility or canonical decomposition. */ - { - /* Binary search through viet_decomp_table. */ - unsigned int i1 = 0; - unsigned int i2 = sizeof(viet_decomp_table)/sizeof(viet_decomp_table[0])-1; - if (wc >= viet_decomp_table[i1].composed - && wc <= viet_decomp_table[i2].composed) { - unsigned int i; - for (;;) { - /* Here i2 - i1 > 0. */ - i = (i1+i2)>>1; - if (wc == viet_decomp_table[i].composed) - break; - if (wc < viet_decomp_table[i].composed) { - if (i1 == i) - return RET_ILUNI; - /* Here i1 < i < i2. */ - i2 = i; - } else { - /* Here i1 <= i < i2. */ - if (i1 != i) - i1 = i; - else { - /* Here i2 - i1 = 1. */ - i = i2; - if (wc == viet_decomp_table[i].composed) - break; - else - return RET_ILUNI; - } - } - } - /* Found a compatibility or canonical decomposition. */ - wc = viet_decomp_table[i].base; - /* wc is one of 0x0020, 0x0041..0x005a, 0x0061..0x007a, 0x00a5, 0x00a8, - 0x00c2, 0x00c5..0x00c7, 0x00ca, 0x00cf, 0x00d3, 0x00d4, 0x00d6, - 0x00d8, 0x00da, 0x00dc, 0x00e2, 0x00e5..0x00e7, 0x00ea, 0x00ef, - 0x00f3, 0x00f4, 0x00f6, 0x00f8, 0x00fc, 0x0102, 0x0103, 0x01a0, - 0x01a1, 0x01af, 0x01b0. */ - if (wc < 0x0080) - c = wc; - else { - c = tcvn_page00[wc-0x00a0]; - if (c == 0) - return RET_ILUNI; - } - if (n < 2) - return RET_TOOSMALL; - r[0] = c; - r[1] = tcvn_comb_table[viet_decomp_table[i].comb1]; - return 2; - } - } - return RET_ILUNI; -} +/* + * Copyright (C) 1999-2002, 2004 Free Software Foundation, Inc. + * This file is part of the GNU LIBICONV Library. + * + * The GNU LIBICONV Library is free software; you can redistribute it + * and/or modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * The GNU LIBICONV Library is distributed in the hope that it will be + * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with the GNU LIBICONV Library; see the file COPYING.LIB. + * If not, write to the Free Software Foundation, Inc., 51 Franklin Street, + * Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/* + * TCVN-5712 + */ + +#include "flushwc.h" +#include "vietcomb.h" + +static const unsigned char tcvn_comb_table[] = { + 0xb0, 0xb3, 0xb2, 0xb1, 0xb4, +}; + +/* The possible bases in viet_comp_table_data: + 0x0041..0x0045, 0x0047..0x0049, 0x004B..0x0050, 0x0052..0x0057, + 0x0059..0x005A, 0x0061..0x0065, 0x0067..0x0069, 0x006B..0x0070, + 0x0072..0x0077, 0x0079..0x007A, 0x00A5, 0x00C2, 0x00CA, 0x00D3..0x00D6, + 0x00DA, 0x00E2, 0x00EA, 0x00F3..0x00F6, 0x00FA, 0x0102..0x0103, + 0x0168..0x0169, 0x01A0..0x01A1, 0x01AF..0x01B0. */ +static const unsigned int tcvn_comp_bases[] = { + 0x06fdfbbe, 0x06fdfbbe, 0x00000000, 0x00000020, 0x04780404, 0x04780404, + 0x0000000c, 0x00000000, 0x00000000, 0x00000300, 0x00000000, 0x00018003 +}; + +static const unsigned short tcvn_2uni_1[24] = { + /* 0x00 */ + 0x0000, 0x00da, 0x1ee4, 0x0003, 0x1eea, 0x1eec, 0x1eee, 0x0007, + 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f, + /* 0x10 */ + 0x0010, 0x1ee8, 0x1ef0, 0x1ef2, 0x1ef6, 0x1ef8, 0x00dd, 0x1ef4, +}; +static const unsigned short tcvn_2uni_2[128] = { + /* 0x80 */ + 0x00c0, 0x1ea2, 0x00c3, 0x00c1, 0x1ea0, 0x1eb6, 0x1eac, 0x00c8, + 0x1eba, 0x1ebc, 0x00c9, 0x1eb8, 0x1ec6, 0x00cc, 0x1ec8, 0x0128, + /* 0x90 */ + 0x00cd, 0x1eca, 0x00d2, 0x1ece, 0x00d5, 0x00d3, 0x1ecc, 0x1ed8, + 0x1edc, 0x1ede, 0x1ee0, 0x1eda, 0x1ee2, 0x00d9, 0x1ee6, 0x0168, + /* 0xa0 */ + 0x00a0, 0x0102, 0x00c2, 0x00ca, 0x00d4, 0x01a0, 0x01af, 0x0110, + 0x0103, 0x00e2, 0x00ea, 0x00f4, 0x01a1, 0x01b0, 0x0111, 0x1eb0, + /* 0xb0 */ + 0x0300, 0x0309, 0x0303, 0x0301, 0x0323, 0x00e0, 0x1ea3, 0x00e3, + 0x00e1, 0x1ea1, 0x1eb2, 0x1eb1, 0x1eb3, 0x1eb5, 0x1eaf, 0x1eb4, + /* 0xc0 */ + 0x1eae, 0x1ea6, 0x1ea8, 0x1eaa, 0x1ea4, 0x1ec0, 0x1eb7, 0x1ea7, + 0x1ea9, 0x1eab, 0x1ea5, 0x1ead, 0x00e8, 0x1ec2, 0x1ebb, 0x1ebd, + /* 0xd0 */ + 0x00e9, 0x1eb9, 0x1ec1, 0x1ec3, 0x1ec5, 0x1ebf, 0x1ec7, 0x00ec, + 0x1ec9, 0x1ec4, 0x1ebe, 0x1ed2, 0x0129, 0x00ed, 0x1ecb, 0x00f2, + /* 0xe0 */ + 0x1ed4, 0x1ecf, 0x00f5, 0x00f3, 0x1ecd, 0x1ed3, 0x1ed5, 0x1ed7, + 0x1ed1, 0x1ed9, 0x1edd, 0x1edf, 0x1ee1, 0x1edb, 0x1ee3, 0x00f9, + /* 0xf0 */ + 0x1ed6, 0x1ee7, 0x0169, 0x00fa, 0x1ee5, 0x1eeb, 0x1eed, 0x1eef, + 0x1ee9, 0x1ef1, 0x1ef3, 0x1ef7, 0x1ef9, 0x00fd, 0x1ef5, 0x1ed0, +}; + +/* In the TCVN to Unicode direction, the state contains a buffered + character, or 0 if none. */ + +static int +tcvn_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) +{ + unsigned char c = *s; + unsigned short wc; + unsigned short last_wc; + if (c < 0x18) + wc = tcvn_2uni_1[c]; + else if (c < 0x80) + wc = c; + else + wc = tcvn_2uni_2[c-0x80]; + last_wc = conv->istate; + if (last_wc) { + if (wc >= 0x0300 && wc < 0x0340) { + /* See whether last_wc and wc can be combined. */ + unsigned int k; + unsigned int i1, i2; + switch (wc) { + case 0x0300: k = 0; break; + case 0x0301: k = 1; break; + case 0x0303: k = 2; break; + case 0x0309: k = 3; break; + case 0x0323: k = 4; break; + default: abort(); + } + i1 = viet_comp_table[k].idx; + i2 = i1 + viet_comp_table[k].len-1; + if (last_wc >= viet_comp_table_data[i1].base + && last_wc <= viet_comp_table_data[i2].base) { + unsigned int i; + for (;;) { + i = (i1+i2)>>1; + if (last_wc == viet_comp_table_data[i].base) + break; + if (last_wc < viet_comp_table_data[i].base) { + if (i1 == i) + goto not_combining; + i2 = i; + } else { + if (i1 != i) + i1 = i; + else { + i = i2; + if (last_wc == viet_comp_table_data[i].base) + break; + goto not_combining; + } + } + } + last_wc = viet_comp_table_data[i].composed; + /* Output the combined character. */ + conv->istate = 0; + *pwc = (ucs4_t) last_wc; + return 1; + } + } + not_combining: + /* Output the buffered character. */ + conv->istate = 0; + *pwc = (ucs4_t) last_wc; + return 0; /* Don't advance the input pointer. */ + } + if (wc >= 0x0041 && wc <= 0x01b0 + && ((tcvn_comp_bases[(wc - 0x0040) >> 5] >> (wc & 0x1f)) & 1)) { + /* wc is a possible match in viet_comp_table_data. Buffer it. */ + conv->istate = wc; + return RET_TOOFEW(1); + } else { + /* Output wc immediately. */ + *pwc = (ucs4_t) wc; + return 1; + } +} + +#define tcvn_flushwc normal_flushwc + +static const unsigned char tcvn_page00[96+184] = { + 0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */ + 0x80, 0x83, 0xa2, 0x82, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */ + 0x87, 0x8a, 0xa3, 0x00, 0x8d, 0x90, 0x00, 0x00, /* 0xc8-0xcf */ + 0x00, 0x00, 0x92, 0x95, 0xa4, 0x94, 0x00, 0x00, /* 0xd0-0xd7 */ + 0x00, 0x9d, 0x01, 0x00, 0x00, 0x16, 0x00, 0x00, /* 0xd8-0xdf */ + 0xb5, 0xb8, 0xa9, 0xb7, 0x00, 0x00, 0x00, 0x00, /* 0xe0-0xe7 */ + 0xcc, 0xd0, 0xaa, 0x00, 0xd7, 0xdd, 0x00, 0x00, /* 0xe8-0xef */ + 0x00, 0x00, 0xdf, 0xe3, 0xab, 0xe2, 0x00, 0x00, /* 0xf0-0xf7 */ + 0x00, 0xef, 0xf3, 0x00, 0x00, 0xfd, 0x00, 0x00, /* 0xf8-0xff */ + /* 0x0100 */ + 0x00, 0x00, 0xa1, 0xa8, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */ + 0xa7, 0xae, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */ + 0x8f, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x28-0x2f */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30-0x37 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x48-0x4f */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */ + 0x9f, 0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x98-0x9f */ + 0xa5, 0xac, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa6, /* 0xa8-0xaf */ + 0xad, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */ +}; +static const unsigned char tcvn_page03[40] = { + 0xb0, 0xb3, 0x00, 0xb2, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */ + 0x00, 0xb1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */ + 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */ +}; +static const unsigned char tcvn_page1e[96] = { + 0x84, 0xb9, 0x81, 0xb6, 0xc4, 0xca, 0xc1, 0xc7, /* 0xa0-0xa7 */ + 0xc2, 0xc8, 0xc3, 0xc9, 0x86, 0xcb, 0xc0, 0xbe, /* 0xa8-0xaf */ + 0xaf, 0xbb, 0xba, 0xbc, 0xbf, 0xbd, 0x85, 0xc6, /* 0xb0-0xb7 */ + 0x8b, 0xd1, 0x88, 0xce, 0x89, 0xcf, 0xda, 0xd5, /* 0xb8-0xbf */ + 0xc5, 0xd2, 0xcd, 0xd3, 0xd9, 0xd4, 0x8c, 0xd6, /* 0xc0-0xc7 */ + 0x8e, 0xd8, 0x91, 0xde, 0x96, 0xe4, 0x93, 0xe1, /* 0xc8-0xcf */ + 0xff, 0xe8, 0xdb, 0xe5, 0xe0, 0xe6, 0xf0, 0xe7, /* 0xd0-0xd7 */ + 0x97, 0xe9, 0x9b, 0xed, 0x98, 0xea, 0x99, 0xeb, /* 0xd8-0xdf */ + 0x9a, 0xec, 0x9c, 0xee, 0x02, 0xf4, 0x9e, 0xf1, /* 0xe0-0xe7 */ + 0x11, 0xf8, 0x04, 0xf5, 0x05, 0xf6, 0x06, 0xf7, /* 0xe8-0xef */ + 0x12, 0xf9, 0x13, 0xfa, 0x17, 0xfe, 0x14, 0xfb, /* 0xf0-0xf7 */ + 0x15, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */ +}; + +static int +tcvn_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) +{ + unsigned char c = 0; + if (wc < 0x0080 && (wc >= 0x0020 || (0x00fe0076 & (1 << wc)) == 0)) { + *r = wc; + return 1; + } + else if (wc >= 0x00a0 && wc < 0x01b8) + c = tcvn_page00[wc-0x00a0]; + else if (wc >= 0x0300 && wc < 0x0328) + c = tcvn_page03[wc-0x0300]; + else if (wc >= 0x0340 && wc < 0x0342) /* deprecated Vietnamese tone marks */ + c = tcvn_page03[wc-0x0340]; + else if (wc >= 0x1ea0 && wc < 0x1f00) + c = tcvn_page1e[wc-0x1ea0]; + if (c != 0) { + *r = c; + return 1; + } + /* Try compatibility or canonical decomposition. */ + { + /* Binary search through viet_decomp_table. */ + unsigned int i1 = 0; + unsigned int i2 = sizeof(viet_decomp_table)/sizeof(viet_decomp_table[0])-1; + if (wc >= viet_decomp_table[i1].composed + && wc <= viet_decomp_table[i2].composed) { + unsigned int i; + for (;;) { + /* Here i2 - i1 > 0. */ + i = (i1+i2)>>1; + if (wc == viet_decomp_table[i].composed) + break; + if (wc < viet_decomp_table[i].composed) { + if (i1 == i) + return RET_ILUNI; + /* Here i1 < i < i2. */ + i2 = i; + } else { + /* Here i1 <= i < i2. */ + if (i1 != i) + i1 = i; + else { + /* Here i2 - i1 = 1. */ + i = i2; + if (wc == viet_decomp_table[i].composed) + break; + else + return RET_ILUNI; + } + } + } + /* Found a compatibility or canonical decomposition. */ + wc = viet_decomp_table[i].base; + /* wc is one of 0x0020, 0x0041..0x005a, 0x0061..0x007a, 0x00a5, 0x00a8, + 0x00c2, 0x00c5..0x00c7, 0x00ca, 0x00cf, 0x00d3, 0x00d4, 0x00d6, + 0x00d8, 0x00da, 0x00dc, 0x00e2, 0x00e5..0x00e7, 0x00ea, 0x00ef, + 0x00f3, 0x00f4, 0x00f6, 0x00f8, 0x00fc, 0x0102, 0x0103, 0x01a0, + 0x01a1, 0x01af, 0x01b0. */ + if (wc < 0x0080) + c = wc; + else { + c = tcvn_page00[wc-0x00a0]; + if (c == 0) + return RET_ILUNI; + } + if (n < 2) + return RET_TOOSMALL; + r[0] = c; + r[1] = tcvn_comb_table[viet_decomp_table[i].comb1]; + return 2; + } + } + return RET_ILUNI; +} |