diff options
author | Ulrich Drepper <drepper@redhat.com> | 1998-03-27 22:57:26 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1998-03-27 22:57:26 +0000 |
commit | a44d23932dea41a56c4345394a973767af45cf02 (patch) | |
tree | d6d2e557b87e7291a27b1a5dd75b215a37f08408 /iconvdata/euckr.c | |
parent | f38931a9f060a9ecb2ad544b1c2e2c80060f6724 (diff) | |
download | glibc-a44d23932dea41a56c4345394a973767af45cf02.tar.gz glibc-a44d23932dea41a56c4345394a973767af45cf02.tar.xz glibc-a44d23932dea41a56c4345394a973767af45cf02.zip |
Update.
1998-03-27 22:46 Ulrich Drepper <drepper@cygnus.com> * Rules: Allow Makefiles to specify test-static for tests which cannot be linked dynamically. * math/Makefile: Move atest-exp, atest-sincos, atest-exp2 to tests-static. * libc.map: Add __nss_passwd_lookup, __nss_group_lookup, __nss_next. * misc/error.c: Pretty print. 1998-03-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makerules (libc_nonshared-name): Remove variable. (installed-libcs): Use libc-name instead. ($(inst_libdir)/libc.so): Likewise. Remove explicit reference to dynamic linker. * Makeconfig (link-libc): Link against libc_nonshared.a instead of libc.a. Remove explicit reference to dynamic linker. 1998-03-27 Ulrich Drepper <drepper@cygnus.com> * iconvdata/iso8859-1.c (gconv): Add cast to assignment from char to wchar_t. * iconv/iconv_prog.c: Correctly test for write failure. * iconvdata/Makefile: Add rules for EUC-KR, UHC, and JOHAB conversions. * iconvdata/gconv-modules: Likewise. * iconvdata/euckr.c: New file. * iconvdata/johab.c: New file. * iconvdata/ksc5601.c: New file. * iconvdata/ksc5601.h: New file. * iconvdata/uhc.c: New file. Contributed by Jungshik Shin <jshin@pantheon.yale.edu>. * libio/fileops.c (_IO_file_fopen): Interpret x flag to fopen. * stdio/fopen.c: Correct handling of 'x' flag. Reported by Jason M. Petry <jason@ps.ohio-state.edu>. 1998-03-27 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sunrpc/rpc/key_prot.h: Prevent warning by unknown pragma ident. * sunrpc/rpcsvc/key_prot.x: Likewise. * sunrpc/key_prot.c: Likewise. 1998-03-27 13:49 Ulrich Drepper <drepper@cygnus.com> * sysdeps/i386/bits/string.h: Correct things which never worked. * sysdeps/i386/i486/bits/string.h: Add clobber marks. Patches by Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>. 1998-03-27 Ulrich Drepper <drepper@cygnus.com> * intl/textdomain.c [_LIBC]: Define strdup only if not yet defined. Reported by Thorsten Kukuk.
Diffstat (limited to 'iconvdata/euckr.c')
-rw-r--r-- | iconvdata/euckr.c | 318 |
1 files changed, 318 insertions, 0 deletions
diff --git a/iconvdata/euckr.c b/iconvdata/euckr.c new file mode 100644 index 0000000000..ba58034b85 --- /dev/null +++ b/iconvdata/euckr.c @@ -0,0 +1,318 @@ +/* Mapping tables for EUC-KR handling. + Copyright (C) 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jungshik Shin <jshin@pantheon.yale.edu>, 1998. + + The GNU C 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 C 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 C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <gconv.h> +#include <inttypes.h> +#include <stdlib.h> +#include <string.h> +#include <wchar.h> +#include <ksc5601.h> + +/* Direction of the transformation. */ +enum direction +{ + illegal, + to_euckr, + from_euckr +}; + +struct euckr_data +{ + enum direction dir; +}; + + + +static inline void +euckr_from_ucs4(wchar_t ch, unsigned char *cp) +{ + if (ch > 0x7f) + { + uint16_t idx=0; + + if (ucs4_to_ksc5601 (ch, &idx)) + idx |= 0x8080; + + *cp = (unsigned char) (idx/256); + *(cp+1) = (unsigned char) (idx & 0xff) ; + } + /* think about 0x5c ; '\' */ + else + { + *cp = (unsigned char) (0x7f & ch) ; + *(cp+1) = (unsigned char) 0; + } +} + + +int +gconv_init (struct gconv_step *step, struct gconv_step_data *data) +{ + /* Determine which direction. */ + struct euckr_data *new_data; + enum direction dir; + int result; + + if (strcasestr (step->from_name, "EUC-KR") != NULL) + dir = from_euckr; + else if (strcasestr (step->to_name, "EUC-KR") != NULL) + dir = to_euckr; + else + dir = illegal; + + result = GCONV_NOCONV; + if (dir != illegal + && ((new_data + = (struct euckr_data *) malloc (sizeof (struct euckr_data))) + != NULL)) + { + new_data->dir = dir; + data->data = new_data; + result = GCONV_OK; + } + + return result; +} + + +void +gconv_end (struct gconv_step_data *data) +{ + free (data->data); +} + + +int +gconv (struct gconv_step *step, struct gconv_step_data *data, + const char *inbuf, size_t *inbufsize, size_t *written, int do_flush) +{ + struct gconv_step *next_step = step + 1; + struct gconv_step_data *next_data = data + 1; + gconv_fct fct = next_step->fct; + size_t do_write; + int result; + + /* If the function is called with no input this means we have to reset + to the initial state. The possibly partly converted input is + dropped. */ + if (do_flush) + { + do_write = 0; + + /* Call the steps down the chain if there are any. */ + if (data->is_last) + result = GCONV_OK; + else + { + struct gconv_step *next_step = step + 1; + struct gconv_step_data *next_data = data + 1; + + result = (*fct) (next_step, next_data, NULL, 0, written, 1); + + /* Clear output buffer. */ + data->outbufavail = 0; + } + } + else + { + enum direction dir = ((struct euckr_data *) data->data)->dir; + + do_write = 0; + + do + { + result = GCONV_OK; + + if (dir == from_euckr) + { + size_t inchars = *inbufsize; + size_t outwchars = data->outbufavail; + char *outbuf = data->outbuf; + size_t cnt = 0; + + while (cnt < inchars + && (outwchars + sizeof (wchar_t) <= data->outbufsize)) + { + int inchar = (unsigned char) inbuf[cnt]; + wchar_t ch; + + /* + half-width Korean Currency WON sign + + if (inchar == 0x5c) + ch = 0x20a9; + else if (inchar <= 0x7f) + ch = (wchar_t) inchar; + */ + + if (inchar <= 0x7f) + ch = (wchar_t) inchar; + + +/* 0xfe(->0x7e : row 94) and 0xc9(->0x59 : row 41) are user-defined areas */ + + else if ( inchar <= 0xa0 || inchar >= 0xfe || inchar == 0xc9) + /* This is illegal. */ + ch = L'\0'; + else + { + /* Two-byte character. First test whether the next + character is also available. */ + int inchar2; + + if (cnt + 1 >= inchars) + { + /* The second character is not available. Store + the intermediate result. */ + result = GCONV_INCOMPLETE_INPUT; + break; + } + + inchar2 = (unsigned char) inbuf[++cnt]; + + ch = ksc5601_to_ucs4 ((uint16_t) (inchar * 256 + inchar2) + & 0x7f7f); + if (ch == UNKNOWN_10646_CHAR) + ch = L'\0'; + + if (ch == L'\0') + --cnt; + } + + if (ch == L'\0' && inbuf[cnt] != '\0') + { + /* This is an illegal character. */ + result = GCONV_ILLEGAL_INPUT; + break; + } + + *((wchar_t *) (outbuf + outwchars)) = ch; + ++do_write; + outwchars += sizeof (wchar_t); + ++cnt; + } + *inbufsize -= cnt; + data->outbufavail = outwchars; + } + else + { + size_t inwchars = *inbufsize; + size_t outchars = data->outbufavail; + char *outbuf = data->outbuf; + size_t cnt = 0; + int extra = 0; + + while (inwchars >= cnt + sizeof (wchar_t) + && outchars < data->outbufsize) + { + wchar_t ch = *((wchar_t *) (inbuf + cnt)); + unsigned char cp[2]; + +/* decomposing Hangul syllables not available in KS C 5601 into Jamos + should be considered either here or in euckr_from_ucs4() */ + + euckr_from_ucs4(ch,cp) ; + + if (cp[0] == '\0' && ch != 0) + /* Illegal character. */ + break; + + outbuf[outchars] = cp[0]; + /* Now test for a possible second byte and write this + if possible. */ + if (cp[1] != '\0') + { + if (outchars + 1 >= data->outbufsize) + { + /* The result does not fit into the buffer. */ + extra = 1; + break; + } + outbuf[++outchars] = cp[1]; + } + + ++do_write; + ++outchars; + cnt += sizeof (wchar_t); + } + *inbufsize -= cnt; + data->outbufavail = outchars; + + if (outchars + extra < data->outbufsize) + { + /* If there is still room in the output buffer something + is wrong with the input. */ + if (inwchars >= cnt + sizeof (wchar_t)) + { + /* An error occurred. */ + result = GCONV_ILLEGAL_INPUT; + break; + } + if (inwchars != cnt) + { + /* There are some unprocessed bytes at the end of the + input buffer. */ + result = GCONV_INCOMPLETE_INPUT; + break; + } + } + } + + if (result != GCONV_OK) + break; + + if (data->is_last) + { + /* This is the last step. */ + result = (*inbufsize > (dir == from_euckr + ? 0 : sizeof (wchar_t) - 1) + ? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT); + break; + } + + /* Status so far. */ + result = GCONV_EMPTY_INPUT; + + if (data->outbufavail > 0) + { + /* Call the functions below in the chain. */ + size_t newavail = data->outbufavail; + + result = (*fct) (next_step, next_data, data->outbuf, &newavail, + written, 0); + + /* Correct the output buffer. */ + if (newavail != data->outbufavail && newavail > 0) + { + memmove (data->outbuf, + &data->outbuf[data->outbufavail - newavail], + newavail); + data->outbufavail = newavail; + } + } + } + while (*inbufsize > 0 && result == GCONV_EMPTY_INPUT); + } + + if (written != NULL && data->is_last) + *written = do_write; + + return result; +} |