diff options
Diffstat (limited to 'jni/iconv/lib/iconv_open1.h')
| -rw-r--r-- | jni/iconv/lib/iconv_open1.h | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/jni/iconv/lib/iconv_open1.h b/jni/iconv/lib/iconv_open1.h new file mode 100644 index 0000000..8a77014 --- /dev/null +++ b/jni/iconv/lib/iconv_open1.h @@ -0,0 +1,201 @@ +/* + * Copyright (C) 1999-2008 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. + */ + +/* Part 1 of iconv_open. + Input: const char* tocode, const char* fromcode. + Output: + unsigned int from_index; + int from_wchar; + unsigned int to_index; + int to_wchar; + int transliterate; + int discard_ilseq; + Jumps to 'invalid' in case of errror. + */ +{ + char buf[MAX_WORD_LENGTH+10+1]; + const char* cp; + char* bp; + const struct alias * ap; + unsigned int count; + + transliterate = 0; + discard_ilseq = 0; + + /* Before calling aliases_lookup, convert the input string to upper case, + * and check whether it's entirely ASCII (we call gperf with option "-7" + * to achieve a smaller table) and non-empty. If it's not entirely ASCII, + * or if it's too long, it is not a valid encoding name. + */ + for (to_wchar = 0;;) { + /* Search tocode in the table. */ + for (cp = tocode, bp = buf, count = MAX_WORD_LENGTH+10+1; ; cp++, bp++) { + unsigned char c = * (unsigned char *) cp; + if (c >= 0x80) + goto invalid; + if (c >= 'a' && c <= 'z') + c -= 'a'-'A'; + *bp = c; + if (c == '\0') + break; + if (--count == 0) + goto invalid; + } + for (;;) { + if (bp-buf >= 10 && memcmp(bp-10,"//TRANSLIT",10)==0) { + bp -= 10; + *bp = '\0'; + transliterate = 1; + continue; + } + if (bp-buf >= 8 && memcmp(bp-8,"//IGNORE",8)==0) { + bp -= 8; + *bp = '\0'; + discard_ilseq = 1; + continue; + } + break; + } + if (buf[0] == '\0') { + tocode = locale_charset(); + /* Avoid an endless loop that could occur when using an older version + of localcharset.c. */ + if (tocode[0] == '\0') + goto invalid; + continue; + } + ap = aliases_lookup(buf,bp-buf); + if (ap == NULL) { + ap = aliases2_lookup(buf); + if (ap == NULL) + goto invalid; + } + if (ap->encoding_index == ei_local_char) { + tocode = locale_charset(); + /* Avoid an endless loop that could occur when using an older version + of localcharset.c. */ + if (tocode[0] == '\0') + goto invalid; + continue; + } + if (ap->encoding_index == ei_local_wchar_t) { + /* On systems which define __STDC_ISO_10646__, wchar_t is Unicode. + This is also the case on native Woe32 systems. */ +#if __STDC_ISO_10646__ || ((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__) + if (sizeof(wchar_t) == 4) { + to_index = ei_ucs4internal; + break; + } + if (sizeof(wchar_t) == 2) { + to_index = ei_ucs2internal; + break; + } + if (sizeof(wchar_t) == 1) { + to_index = ei_iso8859_1; + break; + } +#endif +#if HAVE_MBRTOWC + to_wchar = 1; + tocode = locale_charset(); + continue; +#endif + goto invalid; + } + to_index = ap->encoding_index; + break; + } + for (from_wchar = 0;;) { + /* Search fromcode in the table. */ + for (cp = fromcode, bp = buf, count = MAX_WORD_LENGTH+10+1; ; cp++, bp++) { + unsigned char c = * (unsigned char *) cp; + if (c >= 0x80) + goto invalid; + if (c >= 'a' && c <= 'z') + c -= 'a'-'A'; + *bp = c; + if (c == '\0') + break; + if (--count == 0) + goto invalid; + } + for (;;) { + if (bp-buf >= 10 && memcmp(bp-10,"//TRANSLIT",10)==0) { + bp -= 10; + *bp = '\0'; + continue; + } + if (bp-buf >= 8 && memcmp(bp-8,"//IGNORE",8)==0) { + bp -= 8; + *bp = '\0'; + continue; + } + break; + } + if (buf[0] == '\0') { + fromcode = locale_charset(); + /* Avoid an endless loop that could occur when using an older version + of localcharset.c. */ + if (fromcode[0] == '\0') + goto invalid; + continue; + } + ap = aliases_lookup(buf,bp-buf); + if (ap == NULL) { + ap = aliases2_lookup(buf); + if (ap == NULL) + goto invalid; + } + if (ap->encoding_index == ei_local_char) { + fromcode = locale_charset(); + /* Avoid an endless loop that could occur when using an older version + of localcharset.c. */ + if (fromcode[0] == '\0') + goto invalid; + continue; + } + if (ap->encoding_index == ei_local_wchar_t) { + /* On systems which define __STDC_ISO_10646__, wchar_t is Unicode. + This is also the case on native Woe32 systems. */ +#if __STDC_ISO_10646__ || ((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__) + if (sizeof(wchar_t) == 4) { + from_index = ei_ucs4internal; + break; + } + if (sizeof(wchar_t) == 2) { + from_index = ei_ucs2internal; + break; + } + if (sizeof(wchar_t) == 1) { + from_index = ei_iso8859_1; + break; + } +#endif +#if HAVE_WCRTOMB + from_wchar = 1; + fromcode = locale_charset(); + continue; +#endif + goto invalid; + } + from_index = ap->encoding_index; + break; + } +} |