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-rw-r--r--iconvdata/euckr.c377
1 files changed, 122 insertions, 255 deletions
diff --git a/iconvdata/euckr.c b/iconvdata/euckr.c
index 2ad9478729..50e4b40838 100644
--- a/iconvdata/euckr.c
+++ b/iconvdata/euckr.c
@@ -1,7 +1,8 @@
/* 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.
+ Contributed by Jungshik Shin <jshin@pantheon.yale.edu>
+ and Ulrich Drepper <drepper@cygnus.com>, 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
@@ -18,276 +19,142 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#include <gconv.h>
#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <wchar.h>
#include <ksc5601.h>
-/* Direction of the transformation. */
-static int to_euckr_object;
-static int from_euckr_object;
-
static inline void
-euckr_from_ucs4(wchar_t ch, unsigned char *cp)
+euckr_from_ucs4 (uint32_t ch, unsigned char *cp)
{
if (ch > 0x7f)
{
- uint16_t idx=0;
+ uint16_t idx = 0;
if (ucs4_to_ksc5601 (ch, &idx))
idx |= 0x8080;
- *cp = (unsigned char) (idx/256);
- *(cp+1) = (unsigned char) (idx & 0xff) ;
+ cp[0] = (unsigned char) (idx / 256);
+ cp[1] = (unsigned char) (idx & 0xff);
}
- /* think about 0x5c ; '\' */
+ /* XXX Think about 0x5c ; '\'. */
else
{
- *cp = (unsigned char) (0x7f & ch) ;
- *(cp+1) = (unsigned char) 0;
+ cp[0] = (unsigned char) ch;
+ cp[1] = '\0';
}
}
-int
-gconv_init (struct gconv_step *step)
-{
- /* Determine which direction. */
- if (strcasestr (step->from_name, "EUC-KR") != NULL)
- step->data = &from_euckr_object;
- else if (strcasestr (step->to_name, "EUC-KR") != NULL)
- step->data = &to_euckr_object;
- else
- return GCONV_NOCONV;
-
- return GCONV_OK;
-}
-
-
-void
-gconv_end (struct gconv_step *data)
-{
- /* Nothing to do. */
-}
-
-
-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
- {
- do_write = 0;
-
- do
- {
- result = GCONV_OK;
-
- if (step->data == &from_euckr_object)
- {
- 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;
- inbuf += 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;
- inbuf += 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 > (step->data == &from_euckr_object
- ? 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;
-}
+/* Definitions used in the body of the `gconv' function. */
+#define CHARSET_NAME "EUC-KR"
+#define FROM_LOOP from_euc_kr
+#define TO_LOOP to_euc_kr
+#define DEFINE_INIT 1
+#define DEFINE_FINI 1
+#define MIN_NEEDED_FROM 1
+#define MAX_NEEDED_FROM 2
+#define MIN_NEEDED_TO 4
+
+
+/* First define the conversion function from EUC-KR to UCS4. */
+#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
+#define MAX_NEEDED_INPUT MAX_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
+#define LOOPFCT FROM_LOOP
+#define BODY \
+ { \
+ uint32_t ch = *inptr; \
+ \
+ /* Half-width Korean Currency WON sign \
+ \
+ if (inchar == 0x5c) \
+ ch = 0x20a9; \
+ else if (inchar <= 0x7f) \
+ ch = (wchar_t) inchar; \
+ */ \
+ \
+ if (ch <= 0x7f) \
+ /* Plain ASCII. */ \
+ ++inptr; \
+ /* 0xfe(->0x7e : row 94) and 0xc9(->0x59 : row 41) are \
+ user-defined areas. */ \
+ else if (ch <= 0xa0 || ch > 0xfe || ch == 0xc9) \
+ { \
+ /* This is illegal. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ else \
+ { \
+ /* Two-byte character. First test whether the next character \
+ is also available. */ \
+ int ch2; \
+ \
+ if (NEED_LENGTH_TEST && inptr + 1 >= inend) \
+ { \
+ /* The second character is not available. */ \
+ result = GCONV_INCOMPLETE_INPUT; \
+ break; \
+ } \
+ \
+ ch2 = inptr[1]; \
+ \
+ if (ch2 < 0xa1 || ch2 >= 0xfe \
+ || ((ch = ksc5601_to_ucs4 ((uint16_t) (ch * 256 + ch2) & 0x7f7f)) \
+ == UNKNOWN_10646_CHAR)) \
+ { \
+ /* This is an illegal character. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ \
+ inptr += 2; \
+ } \
+ \
+ *((uint32_t *) outptr)++ = ch; \
+ }
+#include <iconv/loop.c>
+
+
+/* Next, define the other direction. */
+#define MIN_NEEDED_INPUT MIN_NEEDED_TO
+#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
+#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
+#define LOOPFCT TO_LOOP
+#define BODY \
+ { \
+ uint32_t ch = *((uint32_t *) inptr); \
+ 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. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ \
+ *outptr++ = cp[0]; \
+ /* Now test for a possible second byte and write this if possible. */ \
+ if (cp[1] != '\0') \
+ { \
+ if (NEED_LENGTH_TEST && outptr >= outend) \
+ { \
+ /* The result does not fit into the buffer. */ \
+ --outptr; \
+ result = GCONV_FULL_OUTPUT; \
+ break; \
+ } \
+ *outptr++ = cp[1]; \
+ } \
+ \
+ inptr += 4; \
+ }
+#include <iconv/loop.c>
+
+
+/* Now define the toplevel functions. */
+#include <iconv/skeleton.c>
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