X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=src%2Fsiconv.c;h=2082781e19a6fcc58d937ea45916aaa55a55161a;hb=b925ea17d6f146a28d745b0d34e9eec6eafda21f;hp=c0c70bfe2461df7039ebff41ea1b04acd281d52a;hpb=8626b7019b5d3d9c9594f20025e97d06a2d590fc;p=yaz-moved-to-github.git diff --git a/src/siconv.c b/src/siconv.c index c0c70bf..2082781 100644 --- a/src/siconv.c +++ b/src/siconv.c @@ -2,7 +2,7 @@ * Copyright (C) 1995-2006, Index Data ApS * See the file LICENSE for details. * - * $Id: siconv.c,v 1.19 2006-04-19 23:15:39 adam Exp $ + * $Id: siconv.c,v 1.27 2006-08-28 12:34:41 adam Exp $ */ /** * \file siconv.c @@ -12,12 +12,16 @@ * is used by YAZ to interface with iconv (if present). * For systems where iconv is not present, this layer * provides a few important conversions: UTF-8, MARC-8, Latin-1. + * + * MARC-8 reference: + * http://www.loc.gov/marc/specifications/speccharmarc8.html */ #if HAVE_CONFIG_H #include #endif +#include #include #include #include @@ -29,6 +33,7 @@ #include #endif + #include unsigned long yaz_marc8_1_conv(unsigned char *inp, size_t inbytesleft, @@ -99,6 +104,77 @@ struct yaz_iconv_struct { const char *write_marc8_page_chr; }; +static struct { + unsigned long x1, x2; + unsigned y; +} latin1_comb[] = { + { 'A', 0x0300, 0xc0}, /* LATIN CAPITAL LETTER A WITH GRAVE */ + { 'A', 0x0301, 0xc1}, /* LATIN CAPITAL LETTER A WITH ACUTE */ + { 'A', 0x0302, 0xc2}, /* LATIN CAPITAL LETTER A WITH CIRCUMFLEX */ + { 'A', 0x0303, 0xc3}, /* LATIN CAPITAL LETTER A WITH TILDE */ + { 'A', 0x0308, 0xc4}, /* LATIN CAPITAL LETTER A WITH DIAERESIS */ + { 'A', 0x030a, 0xc5}, /* LATIN CAPITAL LETTER A WITH RING ABOVE */ + /* no need for 0xc6 LATIN CAPITAL LETTER AE */ + { 'C', 0x0327, 0xc7}, /* LATIN CAPITAL LETTER C WITH CEDILLA */ + { 'E', 0x0300, 0xc8}, /* LATIN CAPITAL LETTER E WITH GRAVE */ + { 'E', 0x0301, 0xc9}, /* LATIN CAPITAL LETTER E WITH ACUTE */ + { 'E', 0x0302, 0xca}, /* LATIN CAPITAL LETTER E WITH CIRCUMFLEX */ + { 'E', 0x0308, 0xcb}, /* LATIN CAPITAL LETTER E WITH DIAERESIS */ + { 'I', 0x0300, 0xcc}, /* LATIN CAPITAL LETTER I WITH GRAVE */ + { 'I', 0x0301, 0xcd}, /* LATIN CAPITAL LETTER I WITH ACUTE */ + { 'I', 0x0302, 0xce}, /* LATIN CAPITAL LETTER I WITH CIRCUMFLEX */ + { 'I', 0x0308, 0xcf}, /* LATIN CAPITAL LETTER I WITH DIAERESIS */ + { 'N', 0x0303, 0xd1}, /* LATIN CAPITAL LETTER N WITH TILDE */ + { 'O', 0x0300, 0xd2}, /* LATIN CAPITAL LETTER O WITH GRAVE */ + { 'O', 0x0301, 0xd3}, /* LATIN CAPITAL LETTER O WITH ACUTE */ + { 'O', 0x0302, 0xd4}, /* LATIN CAPITAL LETTER O WITH CIRCUMFLEX */ + { 'O', 0x0303, 0xd5}, /* LATIN CAPITAL LETTER O WITH TILDE */ + { 'O', 0x0308, 0xd6}, /* LATIN CAPITAL LETTER O WITH DIAERESIS */ + /* omitted: 0xd7 MULTIPLICATION SIGN */ + /* omitted: 0xd8 LATIN CAPITAL LETTER O WITH STROKE */ + { 'U', 0x0300, 0xd9}, /* LATIN CAPITAL LETTER U WITH GRAVE */ + { 'U', 0x0301, 0xda}, /* LATIN CAPITAL LETTER U WITH ACUTE */ + { 'U', 0x0302, 0xdb}, /* LATIN CAPITAL LETTER U WITH CIRCUMFLEX */ + { 'U', 0x0308, 0xdc}, /* LATIN CAPITAL LETTER U WITH DIAERESIS */ + { 'Y', 0x0301, 0xdd}, /* LATIN CAPITAL LETTER Y WITH ACUTE */ + /* omitted: 0xde LATIN CAPITAL LETTER THORN */ + /* omitted: 0xdf LATIN SMALL LETTER SHARP S */ + { 'a', 0x0300, 0xe0}, /* LATIN SMALL LETTER A WITH GRAVE */ + { 'a', 0x0301, 0xe1}, /* LATIN SMALL LETTER A WITH ACUTE */ + { 'a', 0x0302, 0xe2}, /* LATIN SMALL LETTER A WITH CIRCUMFLEX */ + { 'a', 0x0303, 0xe3}, /* LATIN SMALL LETTER A WITH TILDE */ + { 'a', 0x0308, 0xe4}, /* LATIN SMALL LETTER A WITH DIAERESIS */ + { 'a', 0x030a, 0xe5}, /* LATIN SMALL LETTER A WITH RING ABOVE */ + /* omitted: 0xe6 LATIN SMALL LETTER AE */ + { 'c', 0x0327, 0xe7}, /* LATIN SMALL LETTER C WITH CEDILLA */ + { 'e', 0x0300, 0xe8}, /* LATIN SMALL LETTER E WITH GRAVE */ + { 'e', 0x0301, 0xe9}, /* LATIN SMALL LETTER E WITH ACUTE */ + { 'e', 0x0302, 0xea}, /* LATIN SMALL LETTER E WITH CIRCUMFLEX */ + { 'e', 0x0308, 0xeb}, /* LATIN SMALL LETTER E WITH DIAERESIS */ + { 'i', 0x0300, 0xec}, /* LATIN SMALL LETTER I WITH GRAVE */ + { 'i', 0x0301, 0xed}, /* LATIN SMALL LETTER I WITH ACUTE */ + { 'i', 0x0302, 0xee}, /* LATIN SMALL LETTER I WITH CIRCUMFLEX */ + { 'i', 0x0308, 0xef}, /* LATIN SMALL LETTER I WITH DIAERESIS */ + /* omitted: 0xf0 LATIN SMALL LETTER ETH */ + { 'n', 0x0303, 0xf1}, /* LATIN SMALL LETTER N WITH TILDE */ + { 'o', 0x0300, 0xf2}, /* LATIN SMALL LETTER O WITH GRAVE */ + { 'o', 0x0301, 0xf3}, /* LATIN SMALL LETTER O WITH ACUTE */ + { 'o', 0x0302, 0xf4}, /* LATIN SMALL LETTER O WITH CIRCUMFLEX */ + { 'o', 0x0303, 0xf5}, /* LATIN SMALL LETTER O WITH TILDE */ + { 'o', 0x0308, 0xf6}, /* LATIN SMALL LETTER O WITH DIAERESIS */ + /* omitted: 0xf7 DIVISION SIGN */ + /* omitted: 0xf8 LATIN SMALL LETTER O WITH STROKE */ + { 'u', 0x0300, 0xf9}, /* LATIN SMALL LETTER U WITH GRAVE */ + { 'u', 0x0301, 0xfa}, /* LATIN SMALL LETTER U WITH ACUTE */ + { 'u', 0x0302, 0xfb}, /* LATIN SMALL LETTER U WITH CIRCUMFLEX */ + { 'u', 0x0308, 0xfc}, /* LATIN SMALL LETTER U WITH DIAERESIS */ + { 'y', 0x0301, 0xfd}, /* LATIN SMALL LETTER Y WITH ACUTE */ + /* omitted: 0xfe LATIN SMALL LETTER THORN */ + { 'y', 0x0308, 0xff}, /* LATIN SMALL LETTER Y WITH DIAERESIS */ + + { 0, 0, 0} +}; + static unsigned long yaz_read_ISO8859_1 (yaz_iconv_t cd, unsigned char *inp, size_t inbytesleft, size_t *no_read) { @@ -107,6 +183,21 @@ static unsigned long yaz_read_ISO8859_1 (yaz_iconv_t cd, unsigned char *inp, return x; } +static size_t yaz_init_marc8(yaz_iconv_t cd, unsigned char *inp, + size_t inbytesleft, size_t *no_read) +{ + cd->marc8_esc_mode = 'B'; + + cd->comb_offset = cd->comb_size = 0; + cd->compose_char = 0; + + cd->write_marc8_comb_no = 0; + cd->write_marc8_last = 0; + cd->write_marc8_page_chr = "\033(B"; + + return 0; +} + static size_t yaz_init_UTF8 (yaz_iconv_t cd, unsigned char *inp, size_t inbytesleft, size_t *no_read) { @@ -127,8 +218,9 @@ static size_t yaz_init_UTF8 (yaz_iconv_t cd, unsigned char *inp, return 0; } -static unsigned long yaz_read_UTF8 (yaz_iconv_t cd, unsigned char *inp, - size_t inbytesleft, size_t *no_read) +unsigned long yaz_read_UTF8_char(unsigned char *inp, + size_t inbytesleft, size_t *no_read, + int *error) { unsigned long x = 0; @@ -140,7 +232,7 @@ static unsigned long yaz_read_UTF8 (yaz_iconv_t cd, unsigned char *inp, else if (inp[0] <= 0xbf || inp[0] >= 0xfe) { *no_read = 0; - cd->my_errno = YAZ_ICONV_EILSEQ; + *error = YAZ_ICONV_EILSEQ; } else if (inp[0] <= 0xdf && inbytesleft >= 2) { @@ -150,7 +242,7 @@ static unsigned long yaz_read_UTF8 (yaz_iconv_t cd, unsigned char *inp, else { *no_read = 0; - cd->my_errno = YAZ_ICONV_EILSEQ; + *error = YAZ_ICONV_EILSEQ; } } else if (inp[0] <= 0xef && inbytesleft >= 3) @@ -162,7 +254,7 @@ static unsigned long yaz_read_UTF8 (yaz_iconv_t cd, unsigned char *inp, else { *no_read = 0; - cd->my_errno = YAZ_ICONV_EILSEQ; + *error = YAZ_ICONV_EILSEQ; } } else if (inp[0] <= 0xf7 && inbytesleft >= 4) @@ -174,7 +266,7 @@ static unsigned long yaz_read_UTF8 (yaz_iconv_t cd, unsigned char *inp, else { *no_read = 0; - cd->my_errno = YAZ_ICONV_EILSEQ; + *error = YAZ_ICONV_EILSEQ; } } else if (inp[0] <= 0xfb && inbytesleft >= 5) @@ -187,7 +279,7 @@ static unsigned long yaz_read_UTF8 (yaz_iconv_t cd, unsigned char *inp, else { *no_read = 0; - cd->my_errno = YAZ_ICONV_EILSEQ; + *error = YAZ_ICONV_EILSEQ; } } else if (inp[0] <= 0xfd && inbytesleft >= 6) @@ -200,17 +292,23 @@ static unsigned long yaz_read_UTF8 (yaz_iconv_t cd, unsigned char *inp, else { *no_read = 0; - cd->my_errno = YAZ_ICONV_EILSEQ; + *error = YAZ_ICONV_EILSEQ; } } else { *no_read = 0; - cd->my_errno = YAZ_ICONV_EINVAL; + *error = YAZ_ICONV_EINVAL; } return x; } +static unsigned long yaz_read_UTF8 (yaz_iconv_t cd, unsigned char *inp, + size_t inbytesleft, size_t *no_read) +{ + return yaz_read_UTF8_char(inp, inbytesleft, no_read, &cd->my_errno); +} + static unsigned long yaz_read_UCS4 (yaz_iconv_t cd, unsigned char *inp, size_t inbytesleft, size_t *no_read) { @@ -318,9 +416,29 @@ static unsigned long yaz_read_marc8 (yaz_iconv_t cd, unsigned char *inp, return x; } -static unsigned long yaz_read_marc8_comb (yaz_iconv_t cd, unsigned char *inp, - size_t inbytesleft, size_t *no_read, - int *comb) +static unsigned long yaz_read_marc8s(yaz_iconv_t cd, unsigned char *inp, + size_t inbytesleft, size_t *no_read) +{ + unsigned long x = yaz_read_marc8(cd, inp, inbytesleft, no_read); + if (x && cd->comb_size == 1) + { + /* For MARC8s we try to get a Latin-1 page code out of it */ + int i; + for (i = 0; latin1_comb[i].x1; i++) + if (cd->comb_x[0] == latin1_comb[i].x2 && x == latin1_comb[i].x1) + { + *no_read += cd->comb_no_read[0]; + cd->comb_size = 0; + x = latin1_comb[i].y; + break; + } + } + return x; +} + +static unsigned long yaz_read_marc8_comb(yaz_iconv_t cd, unsigned char *inp, + size_t inbytesleft, size_t *no_read, + int *comb) { *no_read = 0; while(inbytesleft >= 1 && inp[0] == 27) @@ -394,9 +512,16 @@ static unsigned long yaz_read_marc8_comb (yaz_iconv_t cd, unsigned char *inp, } } -static size_t yaz_write_UTF8 (yaz_iconv_t cd, unsigned long x, - char **outbuf, size_t *outbytesleft, - int last) +static size_t yaz_write_UTF8(yaz_iconv_t cd, unsigned long x, + char **outbuf, size_t *outbytesleft, + int last) +{ + return yaz_write_UTF8_char(x, outbuf, outbytesleft, &cd->my_errno); +} + +size_t yaz_write_UTF8_char(unsigned long x, + char **outbuf, size_t *outbytesleft, + int *error) { unsigned char *outp = (unsigned char *) *outbuf; @@ -447,7 +572,7 @@ static size_t yaz_write_UTF8 (yaz_iconv_t cd, unsigned long x, } else { - cd->my_errno = YAZ_ICONV_E2BIG; /* not room for output */ + *error = YAZ_ICONV_E2BIG; /* not room for output */ return (size_t)(-1); } *outbuf = (char *) outp; @@ -466,76 +591,6 @@ static size_t yaz_write_ISO8859_1 (yaz_iconv_t cd, unsigned long x, but since MARC-8 to UTF-8 generates these composed sequence we get a better chance of a successful MARC-8 -> ISO-8859-1 conversion */ - static struct { - unsigned long x1, x2; - unsigned y; - } latin1_comb[] = { - { 'A', 0x0300, 0xc0}, /* LATIN CAPITAL LETTER A WITH GRAVE */ - { 'A', 0x0301, 0xc1}, /* LATIN CAPITAL LETTER A WITH ACUTE */ - { 'A', 0x0302, 0xc2}, /* LATIN CAPITAL LETTER A WITH CIRCUMFLEX */ - { 'A', 0x0303, 0xc3}, /* LATIN CAPITAL LETTER A WITH TILDE */ - { 'A', 0x0308, 0xc4}, /* LATIN CAPITAL LETTER A WITH DIAERESIS */ - { 'A', 0x030a, 0xc5}, /* LATIN CAPITAL LETTER A WITH RING ABOVE */ - /* no need for 0xc6 LATIN CAPITAL LETTER AE */ - { 'C', 0x0327, 0xc7}, /* LATIN CAPITAL LETTER C WITH CEDILLA */ - { 'E', 0x0300, 0xc8}, /* LATIN CAPITAL LETTER E WITH GRAVE */ - { 'E', 0x0301, 0xc9}, /* LATIN CAPITAL LETTER E WITH ACUTE */ - { 'E', 0x0302, 0xca}, /* LATIN CAPITAL LETTER E WITH CIRCUMFLEX */ - { 'E', 0x0308, 0xcb}, /* LATIN CAPITAL LETTER E WITH DIAERESIS */ - { 'I', 0x0300, 0xcc}, /* LATIN CAPITAL LETTER I WITH GRAVE */ - { 'I', 0x0301, 0xcd}, /* LATIN CAPITAL LETTER I WITH ACUTE */ - { 'I', 0x0302, 0xce}, /* LATIN CAPITAL LETTER I WITH CIRCUMFLEX */ - { 'I', 0x0308, 0xcf}, /* LATIN CAPITAL LETTER I WITH DIAERESIS */ - { 'N', 0x0303, 0xd1}, /* LATIN CAPITAL LETTER N WITH TILDE */ - { 'O', 0x0300, 0xd2}, /* LATIN CAPITAL LETTER O WITH GRAVE */ - { 'O', 0x0301, 0xd3}, /* LATIN CAPITAL LETTER O WITH ACUTE */ - { 'O', 0x0302, 0xd4}, /* LATIN CAPITAL LETTER O WITH CIRCUMFLEX */ - { 'O', 0x0303, 0xd5}, /* LATIN CAPITAL LETTER O WITH TILDE */ - { 'O', 0x0308, 0xd6}, /* LATIN CAPITAL LETTER O WITH DIAERESIS */ - /* omitted: 0xd7 MULTIPLICATION SIGN */ - /* omitted: 0xd8 LATIN CAPITAL LETTER O WITH STROKE */ - { 'U', 0x0300, 0xd9}, /* LATIN CAPITAL LETTER U WITH GRAVE */ - { 'U', 0x0301, 0xda}, /* LATIN CAPITAL LETTER U WITH ACUTE */ - { 'U', 0x0302, 0xdb}, /* LATIN CAPITAL LETTER U WITH CIRCUMFLEX */ - { 'U', 0x0308, 0xdc}, /* LATIN CAPITAL LETTER U WITH DIAERESIS */ - { 'Y', 0x0301, 0xdd}, /* LATIN CAPITAL LETTER Y WITH ACUTE */ - /* omitted: 0xde LATIN CAPITAL LETTER THORN */ - /* omitted: 0xdf LATIN SMALL LETTER SHARP S */ - { 'a', 0x0300, 0xe0}, /* LATIN SMALL LETTER A WITH GRAVE */ - { 'a', 0x0301, 0xe1}, /* LATIN SMALL LETTER A WITH ACUTE */ - { 'a', 0x0302, 0xe2}, /* LATIN SMALL LETTER A WITH CIRCUMFLEX */ - { 'a', 0x0303, 0xe3}, /* LATIN SMALL LETTER A WITH TILDE */ - { 'a', 0x0308, 0xe4}, /* LATIN SMALL LETTER A WITH DIAERESIS */ - { 'a', 0x030a, 0xe5}, /* LATIN SMALL LETTER A WITH RING ABOVE */ - /* omitted: 0xe6 LATIN SMALL LETTER AE */ - { 'c', 0x0327, 0xe7}, /* LATIN SMALL LETTER C WITH CEDILLA */ - { 'e', 0x0300, 0xe8}, /* LATIN SMALL LETTER E WITH GRAVE */ - { 'e', 0x0301, 0xe9}, /* LATIN SMALL LETTER E WITH ACUTE */ - { 'e', 0x0302, 0xea}, /* LATIN SMALL LETTER E WITH CIRCUMFLEX */ - { 'e', 0x0308, 0xeb}, /* LATIN SMALL LETTER E WITH DIAERESIS */ - { 'i', 0x0300, 0xec}, /* LATIN SMALL LETTER I WITH GRAVE */ - { 'i', 0x0301, 0xed}, /* LATIN SMALL LETTER I WITH ACUTE */ - { 'i', 0x0302, 0xee}, /* LATIN SMALL LETTER I WITH CIRCUMFLEX */ - { 'i', 0x0308, 0xef}, /* LATIN SMALL LETTER I WITH DIAERESIS */ - /* omitted: 0xf0 LATIN SMALL LETTER ETH */ - { 'n', 0x0303, 0xf1}, /* LATIN SMALL LETTER N WITH TILDE */ - { 'o', 0x0300, 0xf2}, /* LATIN SMALL LETTER O WITH GRAVE */ - { 'o', 0x0301, 0xf3}, /* LATIN SMALL LETTER O WITH ACUTE */ - { 'o', 0x0302, 0xf4}, /* LATIN SMALL LETTER O WITH CIRCUMFLEX */ - { 'o', 0x0303, 0xf5}, /* LATIN SMALL LETTER O WITH TILDE */ - { 'o', 0x0308, 0xf6}, /* LATIN SMALL LETTER O WITH DIAERESIS */ - /* omitted: 0xf7 DIVISION SIGN */ - /* omitted: 0xf8 LATIN SMALL LETTER O WITH STROKE */ - { 'u', 0x0300, 0xf9}, /* LATIN SMALL LETTER U WITH GRAVE */ - { 'u', 0x0301, 0xfa}, /* LATIN SMALL LETTER U WITH ACUTE */ - { 'u', 0x0302, 0xfb}, /* LATIN SMALL LETTER U WITH CIRCUMFLEX */ - { 'u', 0x0308, 0xfc}, /* LATIN SMALL LETTER U WITH DIAERESIS */ - { 'y', 0x0301, 0xfd}, /* LATIN SMALL LETTER Y WITH ACUTE */ - /* omitted: 0xfe LATIN SMALL LETTER THORN */ - { 'y', 0x0308, 0xff}, /* LATIN SMALL LETTER Y WITH DIAERESIS */ - - { 0, 0, 0} - }; unsigned char *outp = (unsigned char *) *outbuf; if (cd->compose_char) @@ -722,13 +777,13 @@ static size_t flush_combos(yaz_iconv_t cd, if (!y) return 0; - byte = (y>>16) & 0xff; + byte = (unsigned char )((y>>16) & 0xff); if (byte) out_buf[out_no++] = byte; - byte = (y>>8) & 0xff; + byte = (unsigned char)((y>>8) & 0xff); if (byte) out_buf[out_no++] = byte; - byte = y & 0xff; + byte = (unsigned char )(y & 0xff); if (byte) out_buf[out_no++] = byte; @@ -740,7 +795,8 @@ static size_t flush_combos(yaz_iconv_t cd, for (i = 0; i < cd->write_marc8_comb_no; i++) { - byte = cd->write_marc8_comb_ch[i]; + /* all MARC-8 combined characters are simple bytes */ + byte = (unsigned char )(cd->write_marc8_comb_ch[i]); if (byte == 0xEB) second_half = 0xEC; else if (byte == 0xFA) @@ -763,9 +819,9 @@ static size_t flush_combos(yaz_iconv_t cd, return 0; } -static size_t yaz_write_marc8(yaz_iconv_t cd, unsigned long x, - char **outbuf, size_t *outbytesleft, - int last) +static size_t yaz_write_marc8_2(yaz_iconv_t cd, unsigned long x, + char **outbuf, size_t *outbytesleft, + int last) { int comb = 0; const char *page_chr = 0; @@ -782,21 +838,42 @@ static size_t yaz_write_marc8(yaz_iconv_t cd, unsigned long x, else { size_t r = flush_combos(cd, outbuf, outbytesleft); + const char *old_page_chr = cd->write_marc8_page_chr; if (r) return r; - if (strcmp(page_chr, cd->write_marc8_page_chr)) + if (strcmp(page_chr, old_page_chr)) { - size_t plen = strlen(page_chr); + size_t plen = 0; + const char *page_out = page_chr; - if (*outbytesleft < plen) + if (*outbytesleft < 8) { cd->my_errno = YAZ_ICONV_E2BIG; + return (size_t) (-1); } - memcpy(*outbuf, page_chr, plen); + cd->write_marc8_page_chr = page_chr; + + if (!strcmp(old_page_chr, "\033p") + || !strcmp(old_page_chr, "\033g") + || !strcmp(old_page_chr, "\033b")) + { + /* Technique 1 leave */ + page_out = "\033s"; + if (strcmp(page_chr, "\033(B")) /* Not going ASCII page? */ + { + /* Must leave script + enter new page */ + plen = strlen(page_out); + memcpy(*outbuf, page_out, plen); + (*outbuf) += plen; + (*outbytesleft) -= plen; + page_out = page_chr; + } + } + plen = strlen(page_out); + memcpy(*outbuf, page_out, plen); (*outbuf) += plen; (*outbytesleft) -= plen; - cd->write_marc8_page_chr = page_chr; } cd->write_marc8_last = y; } @@ -815,6 +892,41 @@ static size_t yaz_write_marc8(yaz_iconv_t cd, unsigned long x, return 0; } +static size_t yaz_write_marc8(yaz_iconv_t cd, unsigned long x, + char **outbuf, size_t *outbytesleft, + int last) +{ + int i; + for (i = 0; latin1_comb[i].x1; i++) + { + if (x == latin1_comb[i].y) + { + size_t r ; + /* save the output pointers .. */ + char *outbuf0 = *outbuf; + size_t outbytesleft0 = *outbytesleft; + int last_ch = cd->write_marc8_last; + + r = yaz_write_marc8_2(cd, latin1_comb[i].x1, + outbuf, outbytesleft, 0); + if (r) + return r; + r = yaz_write_marc8_2(cd, latin1_comb[i].x2, + outbuf, outbytesleft, last); + if (r && cd->my_errno == YAZ_ICONV_E2BIG) + { + /* not enough room. reset output to original values */ + *outbuf = outbuf0; + *outbytesleft = outbytesleft0; + cd->write_marc8_last = last_ch; + } + return r; + } + } + return yaz_write_marc8_2(cd, x, outbuf, outbytesleft, last); +} + + #if HAVE_WCHAR_H static size_t yaz_write_wchar_t (yaz_iconv_t cd, unsigned long x, char **outbuf, size_t *outbytesleft, @@ -852,13 +964,6 @@ yaz_iconv_t yaz_iconv_open (const char *tocode, const char *fromcode) cd->read_handle = 0; cd->init_handle = 0; cd->my_errno = YAZ_ICONV_UNKNOWN; - cd->marc8_esc_mode = 'B'; - cd->comb_offset = cd->comb_size = 0; - cd->compose_char = 0; - - cd->write_marc8_comb_no = 0; - cd->write_marc8_last = 0; - cd->write_marc8_page_chr = "\033(B"; /* a useful hack: if fromcode has leading @, the library not use YAZ's own conversions .. */ @@ -878,7 +983,15 @@ yaz_iconv_t yaz_iconv_open (const char *tocode, const char *fromcode) else if (!yaz_matchstr(fromcode, "UCS4LE")) cd->read_handle = yaz_read_UCS4LE; else if (!yaz_matchstr(fromcode, "MARC8")) + { cd->read_handle = yaz_read_marc8; + cd->init_handle = yaz_init_marc8; + } + else if (!yaz_matchstr(fromcode, "MARC8s")) + { + cd->read_handle = yaz_read_marc8s; + cd->init_handle = yaz_init_marc8; + } #if HAVE_WCHAR_H else if (!yaz_matchstr(fromcode, "WCHAR_T")) cd->read_handle = yaz_read_wchar_t; @@ -893,7 +1006,15 @@ yaz_iconv_t yaz_iconv_open (const char *tocode, const char *fromcode) else if (!yaz_matchstr(tocode, "UCS4LE")) cd->write_handle = yaz_write_UCS4LE; else if (!yaz_matchstr(tocode, "MARC8")) + { + cd->write_handle = yaz_write_marc8; + cd->init_handle = yaz_init_marc8; + } + else if (!yaz_matchstr(tocode, "MARC8s")) + { cd->write_handle = yaz_write_marc8; + cd->init_handle = yaz_init_marc8; + } #if HAVE_WCHAR_H else if (!yaz_matchstr(tocode, "WCHAR_T")) cd->write_handle = yaz_write_wchar_t; @@ -964,7 +1085,7 @@ size_t yaz_iconv(yaz_iconv_t cd, char **inbuf, size_t *inbytesleft, { if (cd->init_handle) { - size_t no_read; + size_t no_read = 0; size_t r = (cd->init_handle)(cd, (unsigned char *) *inbuf, *inbytesleft, &no_read); if (r)