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-rw-r--r--iconvdata/big5.c451
1 files changed, 171 insertions, 280 deletions
diff --git a/iconvdata/big5.c b/iconvdata/big5.c
index a6a2580dd7..2962712167 100644
--- a/iconvdata/big5.c
+++ b/iconvdata/big5.c
@@ -8411,289 +8411,180 @@ static const char from_ucs4_tab13[][2] =
};
-/* Direction of the transformation. */
-static int to_big5_object;
-static int from_big5_object;
+/* Definitions used in the body of the `gconv' function. */
+#define CHARSET_NAME "BIG5"
+#define FROM_LOOP from_big5
+#define TO_LOOP to_big5
+#define DEFINE_INIT 1
+#define DEFINE_FINI 1
+#define MIN_NEEDED_FROM 1
+#define MAX_NEEDED_FROM 2
+#define MIN_NEEDED_TO 4
-int
-gconv_init (struct gconv_step *step)
-{
- /* Determine which direction. */
- if (strcasestr (step->from_name, "BIG5") != NULL)
- step->data = &from_big5_object;
- else if (strcasestr (step->to_name, "BIG5") != NULL)
- step->data = &to_big5_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
- {
- 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_big5_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 = inbuf[cnt];
- wchar_t ch;
-
- if (inchar < '\xa1' || inchar > '\xfe')
- ch = (wchar_t) inchar;
- else
- {
- /* Two-byte character. First test whether the next
- character is also available. */
- int inchar2;
- int idx;
-
- if (cnt + 1 >= inchars)
- {
- /* The second character is not available. Store
- the intermediate result. */
- result = GCONV_INCOMPLETE_INPUT;
- break;
- }
-
- idx = (inchar - 0xa1) * 157;
- inchar2 = inbuf[++cnt];
- /* See whether the second byte is in the correct
- range. */
- if (inchar2 >= '\x40' && inchar2 <= '\x7e')
- idx += inchar2 - 0x40;
- else if (inchar2 >= '\xa1' && inchar2 <= '\xfe')
- idx += 0x3f + (inchar2 - 0xa1);
- else
- {
- /* This is illegal. */
- --cnt;
- result = GCONV_ILLEGAL_INPUT;
- break;
- }
-
- /* Get the value from the table. */
- ch = big5_to_ucs[idx];
-
- 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)
- {
- int ch = *((wchar_t *) (inbuf + cnt));
- char buf[2];
- const char *cp;
-
- if (ch >= (sizeof (from_ucs4_tab1)
- / sizeof (from_ucs4_tab1[0])))
- {
- if (ch >= 0x2c7 && ch <= 0x2d9)
- cp = from_ucs4_tab2[ch - 0x2c7];
- else if (ch >= 0x391 && ch <= 0x451)
- cp = from_ucs4_tab3[ch - 0x391];
- else if (ch >= 0x2013 && ch <= 0x203e)
- cp = from_ucs4_tab4[ch - 0x2013];
- else if (ch == 0x2103)
- cp = "\xa2\x4a";
- else if (ch == 0x2105)
- cp = "\xa1\xc1";
- else if (ch == 0x2109)
- cp = "\xa2\x4b";
- else if (ch >= 0x2160 && ch <= 0x2169)
- {
- buf[0] = '\xa2';
- buf[1] = '\xb9' + (ch - 0x2160);
- cp = buf;
- }
- else if (ch >= 0x2190 && ch <= 0x2199)
- cp = from_ucs4_tab5[ch - 0x2190];
- else if (ch >= 0x221a && ch <= 0x22bf)
- cp = from_ucs4_tab6[ch - 0x221a];
- else if (ch >= 0x2460 && ch <= 0x247d)
- cp = from_ucs4_tab7[ch - 0x2460];
- else if (ch >= 0x2500 && ch <= 0x2642)
- cp = from_ucs4_tab8[ch - 0x2500];
- else if (ch >= 0x3000 && ch <= 0x3129)
- cp = from_ucs4_tab9[ch - 0x3000];
- else if (ch == 0x32a3)
- cp = "\xa1\xc0";
- else if (ch >= 0x338e && ch <= 0x33d5)
- cp = from_ucs4_tab10[ch - 0x338e];
- else if (ch >= 0x4e00 && ch <= 0x9fa4)
- cp = from_ucs4_tab11[ch - 0x4e00];
- else if (ch == 0xfa0c)
- cp = "\xc9\x4a";
- else if (ch == 0xfa0d)
- cp = "\xdd\xfc";
- else if (ch >= 0xfe30 && ch <= 0xfe6b)
- cp = from_ucs4_tab12[ch - 0xfe30];
- else if (ch >= 0xff01 && ch <= 0xff64)
- cp = from_ucs4_tab13[ch - 0xff01];
- else
- /* Illegal character. */
- break;
- }
- else
- cp = from_ucs4_tab1[ch];
-
- 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_big5_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;
+/* First define the conversion function from Big5 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 >= '\xa1' && ch <= '\xff') \
+ { \
+ /* Two-byte character. First test whether the next character \
+ is also available. */ \
+ uint32_t ch2; \
+ int idx; \
+ \
+ if (NEED_LENGTH_TEST && inptr + 1 >= inend) \
+ { \
+ /* The second character is not available. */ \
+ result = GCONV_INCOMPLETE_INPUT; \
+ break; \
+ } \
+ \
+ idx = (ch - 0xa1) * 157; \
+ ch2 = inptr[1]; \
+ /* See whether the second byte is in the correct range. */ \
+ if (ch2 >= '\x40' && ch2 <= '\x7e') \
+ idx += ch2 - 0x40; \
+ else if (ch2 >= '\xa1' && ch2 <= '\xfe') \
+ idx += 0x3f + (ch2 - 0xa1); \
+ else \
+ { \
+ /* This is illegal. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ \
+ /* Get the value from the table. */ \
+ ch = big5_to_ucs[idx]; \
+ \
+ /* Is this character defined? */ \
+ if (ch == L'\0' && *inptr != '\0') \
+ { \
+ /* This is an illegal character. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ \
+ inptr += 2; \
+ } \
+ else \
+ ++inptr; \
+ \
+ *((uint32_t *) outptr)++ = ch; \
+ }
+#include <iconv/loop.c>
- 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);
- }
+/* 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); \
+ char buf[2]; \
+ const char *cp; \
+ \
+ if (ch >= sizeof (from_ucs4_tab1) / sizeof (from_ucs4_tab1[0])) \
+ switch (ch) \
+ { \
+ case 0x2c7 ... 0x2d9: \
+ cp = from_ucs4_tab2[ch - 0x2c7]; \
+ break; \
+ case 0x391 ... 0x451: \
+ cp = from_ucs4_tab3[ch - 0x391]; \
+ break; \
+ case 0x2013 ... 0x203e: \
+ cp = from_ucs4_tab4[ch - 0x2013]; \
+ break; \
+ case 0x2103: \
+ cp = "\xa2\x4a"; \
+ break; \
+ case 0x2105: \
+ cp = "\xa1\xc1"; \
+ break; \
+ case 0x2109: \
+ cp = "\xa2\x4b"; \
+ break; \
+ case 0x2160 ... 0x2169: \
+ { \
+ buf[0] = '\xa2'; \
+ buf[1] = '\xb9' + (ch - 0x2160); \
+ cp = buf; \
+ } \
+ break; \
+ case 0x2190 ... 0x2199: \
+ cp = from_ucs4_tab5[ch - 0x2190]; \
+ break; \
+ case 0x221a ... 0x22bf: \
+ cp = from_ucs4_tab6[ch - 0x221a]; \
+ break; \
+ case 0x2460 ... 0x247d: \
+ cp = from_ucs4_tab7[ch - 0x2460]; \
+ break; \
+ case 0x2500 ... 0x2642: \
+ cp = from_ucs4_tab8[ch - 0x2500]; \
+ break; \
+ case 0x3000 ... 0x3129: \
+ cp = from_ucs4_tab9[ch - 0x3000]; \
+ break; \
+ case 0x32a3: \
+ cp = "\xa1\xc0"; \
+ break; \
+ case 0x338e ... 0x33d5: \
+ cp = from_ucs4_tab10[ch - 0x338e]; \
+ break; \
+ case 0x4e00 ... 0x9fa4: \
+ cp = from_ucs4_tab11[ch - 0x4e00]; \
+ break; \
+ case 0xfa0c: \
+ cp = "\xc9\x4a"; \
+ break; \
+ case 0xfa0d: \
+ cp = "\xdd\xfc"; \
+ break; \
+ case 0xfe30 ... 0xfe6b: \
+ cp = from_ucs4_tab12[ch - 0xfe30]; \
+ break; \
+ case 0xff01 ... 0xff64: \
+ cp = from_ucs4_tab13[ch - 0xff01]; \
+ break; \
+ default: \
+ /* Illegal character. */ \
+ cp = ""; \
+ break; \
+ } \
+ else \
+ cp = from_ucs4_tab1[ch]; \
+ \
+ if (cp[0] == '\0' && ch != 0) \
+ { \
+ /* Illegal character. */ \
+ result = GCONV_ILLEGAL_INPUT; \
+ break; \
+ } \
+ \
+ /* See whether there is enough room for the second byte we write. */ \
+ if (NEED_LENGTH_TEST && cp[1] != '\0' && outptr + 1 >= outend) \
+ { \
+ /* We have not enough room. */ \
+ result = GCONV_FULL_OUTPUT; \
+ break; \
+ } \
+ \
+ *outptr++ = cp[0]; \
+ if (cp[1] != '\0') \
+ *outptr++ = cp[1]; \
+ inptr += 4; \
+ }
+#include <iconv/loop.c>
- if (written != NULL && data->is_last)
- *written = do_write;
- return result;
-}
+/* Now define the toplevel functions. */
+#include <iconv/skeleton.c>
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