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-rw-r--r--iconvdata/eucjp.c480
1 files changed, 182 insertions, 298 deletions
diff --git a/iconvdata/eucjp.c b/iconvdata/eucjp.c
index e6a71cc791..24ebed94ec 100644
--- a/iconvdata/eucjp.c
+++ b/iconvdata/eucjp.c
@@ -18,306 +18,190 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#include <gconv.h>
#include <stdint.h>
-#include <string.h>
-#include <wchar.h>
+#include <gconv.h>
#include <jis0201.h>
#include <jis0208.h>
#include <jis0212.h>
-/* Direction of the transformation. */
-static int to_eucjp_object;
-static int from_eucjp_object;
-
-
-int
-gconv_init (struct gconv_step *step)
-{
- /* Determine which direction. */
- if (strcasestr (step->from_name, "EUC-JP") != NULL)
- step->data = &from_eucjp_object;
- else if (strcasestr (step->to_name, "EUC-JP") != NULL)
- step->data = &to_eucjp_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_eucjp_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;
-
- if (inchar <= 0x7f)
- ch = (wchar_t) inchar;
- else if ((inchar <= 0xa0 || inchar > 0xfe)
- && inchar != 0x8e && inchar != 0x8f)
- /* This is illegal. */
- ch = L'\0';
- else
- {
- /* Two or more 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];
-
- /* All second bytes of a multibyte character must be
- >= 0xa1. */
- if (inchar2 < 0xa1)
- {
- /* This is an illegal character. */
- --cnt;
- result = GCONV_ILLEGAL_INPUT;
- break;
- }
-
- if (inchar == '\x8e')
- /* This is code set 2: half-width katakana. */
- ch = jisx0201_to_ucs4 (inchar2);
- else if (inchar == '\x8f')
- {
- /* This is code set 3: JIS X 0212-1990. */
- const char *endp = &inbuf[cnt];
-
- ch = jisx0212_to_ucs4 (&endp, 1 + inchars - cnt,
- 0x80);
- cnt = endp - inbuf;
- }
- else
- {
- /* This is code set 1: JIS X 0208. */
- const char *endp = &inbuf[cnt - 1];
-
- ch = jisx0208_to_ucs4 (&endp, 2 + inchars - cnt,
- 0x80);
- if (ch != L'\0')
- ++cnt;
- }
-
- 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));
-
- if (ch <= L'\x7f')
- /* It's plain ASCII. */
- outbuf[outchars] = ch;
- else
- {
- /* Try the JIS character sets. */
- size_t found;
-
- found = ucs4_to_jisx0201 (ch, &outbuf[outchars]);
-
- if (found == UNKNOWN_10646_CHAR)
- {
- /* No JIS 0201 character. */
- found = ucs4_to_jisx0208 (ch, &outbuf[outchars],
- (data->outbufsize
- - outchars));
- if (found == 0)
- {
- /* We ran out of space. */
- extra = 2;
- break;
- }
- else if (found != UNKNOWN_10646_CHAR)
- {
- /* It's a JIS 0208 character, adjust it for
- EUC-JP. */
- outbuf[outchars++] += 0x80;
- outbuf[outchars] += 0x80;
- }
- else
- {
- /* No JIS 0208 character. */
- found = ucs4_to_jisx0212 (ch, &outbuf[outchars],
- (data->outbufsize
- - outchars));
-
- if (found == 0)
- {
- /* We ran out of space. */
- extra = 2;
- break;
- }
- else if (found != UNKNOWN_10646_CHAR)
- {
- /* It's a JIS 0212 character, adjust it for
- EUC-JP. */
- outbuf[outchars++] += 0x80;
- outbuf[outchars] += 0x80;
- }
- else
- /* Illegal character. */
- break;
- }
- }
- }
-
- ++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_eucjp_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-JP"
+#define FROM_LOOP from_euc_jp
+#define TO_LOOP to_euc_jp
+#define DEFINE_INIT 1
+#define DEFINE_FINI 1
+#define MIN_NEEDED_FROM 1
+#define MAX_NEEDED_FROM 3
+#define MIN_NEEDED_TO 4
+
+
+/* First define the conversion function from EUC-JP 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; \
+ \
+ if (ch <= 0x7f) \
+ ++inptr; \
+ else if ((ch <= 0xa0 || ch > 0xfe) && ch != 0x8e && ch != 0x8f) \
+ { \
+ /* This is illegal. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ else \
+ { \
+ /* Two or more 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. Store the \
+ intermediate result. */ \
+ result = GCONV_INCOMPLETE_INPUT; \
+ break; \
+ } \
+ \
+ ch2 = inptr[1]; \
+ \
+ /* All second bytes of a multibyte character must be >= 0xa1. */ \
+ if (ch2 < 0xa1) \
+ { \
+ /* This is an illegal character. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ \
+ if (ch == 0x8e) \
+ { \
+ /* This is code set 2: half-width katakana. */ \
+ ch = jisx0201_to_ucs4 (ch2); \
+ inptr += 2; \
+ } \
+ else \
+ { \
+ const unsigned char *endp; \
+ \
+ if (ch == 0x8f) \
+ { \
+ /* This is code set 3: JIS X 0212-1990. */ \
+ endp = inptr + 1; \
+ \
+ ch = jisx0212_to_ucs4 (&endp, \
+ NEED_LENGTH_TEST ? inend - endp : 2, \
+ 0x80); \
+ } \
+ else \
+ { \
+ /* This is code set 1: JIS X 0208. */ \
+ endp = inptr; \
+ \
+ ch = jisx0208_to_ucs4 (&endp, \
+ NEED_LENGTH_TEST ? inend - inptr : 2, \
+ 0x80); \
+ } \
+ \
+ if (NEED_LENGTH_TEST && ch == 0) \
+ { \
+ /* Not enough input available. */ \
+ result = GCONV_INCOMPLETE_INPUT; \
+ break; \
+ } \
+ if (ch == UNKNOWN_10646_CHAR) \
+ { \
+ /* Illegal character. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ inptr = endp; \
+ } \
+ } \
+ \
+ *((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); \
+ \
+ if (ch <= 0x7f) \
+ /* It's plain ASCII. */ \
+ *outptr++ = ch; \
+ else \
+ { \
+ /* Try the JIS character sets. */ \
+ size_t found; \
+ \
+ /* See whether we have room for at least two characters. */ \
+ if (NEED_LENGTH_TEST && outptr + 1 >= outend) \
+ { \
+ result = GCONV_FULL_OUTPUT; \
+ break; \
+ } \
+ \
+ found = ucs4_to_jisx0201 (ch, outptr + 1); \
+ if (found != UNKNOWN_10646_CHAR) \
+ { \
+ /* Yes, it's a JIS 0201 character. Store the shift byte. */ \
+ *outptr = 0x8e; \
+ outptr += 2; \
+ } \
+ else \
+ { \
+ /* No JIS 0201 character. */ \
+ found = ucs4_to_jisx0208 (ch, outptr, 2); \
+ /* Please note that we always have enough room for the output. */ \
+ if (found != UNKNOWN_10646_CHAR) \
+ { \
+ /* It's a JIS 0208 character, adjust it for EUC-JP. */ \
+ *outptr++ += 0x80; \
+ *outptr++ += 0x80; \
+ } \
+ else \
+ { \
+ /* No JIS 0208 character. */ \
+ found = ucs4_to_jisx0212 (ch, outptr + 1, \
+ (NEED_LENGTH_TEST \
+ ? outend - outptr - 1 : 2)); \
+ \
+ if (found == 0) \
+ { \
+ /* We ran out of space. */ \
+ result = GCONV_FULL_OUTPUT; \
+ break; \
+ } \
+ else if (found != UNKNOWN_10646_CHAR) \
+ { \
+ /* It's a JIS 0212 character, adjust it for EUC-JP. */ \
+ *outptr++ = 0x8f; \
+ *outptr++ += 0x80; \
+ *outptr++ += 0x80; \
+ } \
+ else \
+ { \
+ /* Illegal character. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ } \
+ } \
+ } \
+ \
+ inptr += 4; \
+ }
+#include <iconv/loop.c>
+
+
+/* Now define the toplevel functions. */
+#include <iconv/skeleton.c>
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