/* Conversion from and to IBM933.
- Copyright (C) 2000 Free Software Foundation, Inc.
+ Copyright (C) 2000-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Masahide Washizawa <washi@yamato.ibm.co.jp>, 2000.
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.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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.
+ Lesser 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. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#include <dlfcn.h>
#include <stdint.h>
#define CHARSET_NAME "IBM933//"
#define FROM_LOOP from_ibm933
#define TO_LOOP to_ibm933
+#define ONE_DIRECTION 0
+#define FROM_LOOP_MIN_NEEDED_FROM 1
+#define FROM_LOOP_MAX_NEEDED_FROM 2
+#define FROM_LOOP_MIN_NEEDED_TO 4
+#define FROM_LOOP_MAX_NEEDED_TO 4
+#define TO_LOOP_MIN_NEEDED_FROM 4
+#define TO_LOOP_MAX_NEEDED_FROM 4
+#define TO_LOOP_MIN_NEEDED_TO 1
+#define TO_LOOP_MAX_NEEDED_TO 3
+#define PREPARE_LOOP \
+ int save_curcs; \
+ int *curcsp = &data->__statep->__count;
+#define EXTRA_LOOP_ARGS , curcsp
/* Definitions of initialization and destructor function. */
#define DEFINE_INIT 1
#define DEFINE_FINI 1
-#define MIN_NEEDED_FROM 1
-#define MIN_NEEDED_TO 4
+
+/* Since this is a stateful encoding we have to provide code which resets
+ the output state to the initial state. This has to be done during the
+ flushing. */
+#define EMIT_SHIFT_TO_INIT \
+ if ((data->__statep->__count & ~7) != sb) \
+ { \
+ if (FROM_DIRECTION) \
+ data->__statep->__count &= 7; \
+ else \
+ { \
+ /* We are not in the initial state. To switch back we have \
+ to emit `SI'. */ \
+ if (__glibc_unlikely (outbuf >= outend)) \
+ /* We don't have enough room in the output buffer. */ \
+ status = __GCONV_FULL_OUTPUT; \
+ else \
+ { \
+ /* Write out the shift sequence. */ \
+ *outbuf++ = SI; \
+ data->__statep->__count &= 7; \
+ } \
+ } \
+ }
+
+
+/* Since we might have to reset input pointer we must be able to save
+ and retore the state. */
+#define SAVE_RESET_STATE(Save) \
+ if (Save) \
+ save_curcs = *curcsp; \
+ else \
+ *curcsp = save_curcs
+
/* Current codeset type. */
enum
{
- init = 0,
- sb,
- db
+ sb = 0,
+ db = 64
};
/* First, define the conversion function from IBM-933 to UCS4. */
-#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
-#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
-#define INIT_PARAMS int curcs = init;
+#define MIN_NEEDED_INPUT FROM_LOOP_MIN_NEEDED_FROM
+#define MAX_NEEDED_INPUT FROM_LOOP_MAX_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT FROM_LOOP_MIN_NEEDED_TO
+#define MAX_NEEDED_OUTPUT FROM_LOOP_MAX_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
uint32_t ch = *inptr; \
uint32_t res; \
- const struct gap *rp1 = __ibm933sb_to_ucs4_idx; \
- const struct gap *rp2 = __ibm933db_to_ucs4_idx; \
\
if (__builtin_expect (ch, 0) == SO) \
{ \
- if (__builtin_expect (inptr + 1 >= inend, 0)) \
- { \
- result = __GCONV_INCOMPLETE_INPUT; \
- break; \
- } \
- \
/* Shift OUT, change to DBCS converter. */ \
if (curcs == db) \
{ \
} \
curcs = db; \
++inptr; \
- ch = *inptr; \
+ continue; \
} \
else if (__builtin_expect (ch, 0) == SI) \
{ \
- if (__builtin_expect (inptr + 1 >= inend, 0)) \
- { \
- result = __GCONV_INCOMPLETE_INPUT; \
- break; \
- } \
- \
/* Shift IN, change to SBCS converter. */ \
if (curcs == sb) \
{ \
} \
curcs = sb; \
++inptr; \
- ch = *inptr; \
+ continue; \
} \
\
- if (curcs == sb || curcs == init) \
+ if (curcs == sb) \
{ \
/* Use the IBM933 table for single byte. */ \
- while (ch > rp1->end) \
- ++rp1; \
- \
- if (__builtin_expect (rp1 == NULL, 0) \
- || __builtin_expect (ch < rp1->start, 0) \
- || (res = __ibm933sb_to_ucs4[ch + rp1->idx], \
- __builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \
+ res = __ibm933sb_to_ucs4[ch]; \
+ if (__builtin_expect (res, L'\1') == L'\0' && ch != '\0') \
{ \
/* This is an illegal character. */ \
- if (! ignore_errors_p ()) \
- { \
- result = __GCONV_ILLEGAL_INPUT; \
- break; \
- } \
- ++*irreversible; \
- ++inptr; \
- continue; \
+ STANDARD_FROM_LOOP_ERR_HANDLER (1); \
} \
else \
{ \
put32 (outptr, res); \
outptr += 4; \
- ++inptr; \
} \
+ ++inptr; \
} \
- else if (curcs == db) \
+ else \
{ \
+ const struct gap *rp2 = __ibm933db_to_ucs4_idx; \
+ \
+ assert (curcs == db); \
+ \
/* Use the IBM933 table for double byte. */ \
- if (__builtin_expect (inptr + 1 >= inend, 0)) \
+ if (__glibc_unlikely (inptr + 1 >= inend)) \
{ \
/* The second character is not available. Store the \
intermediate result. */ \
while (ch > rp2->end) \
++rp2; \
\
- if (__builtin_expect (rp2 == NULL, 0) \
+ if (__builtin_expect (rp2->start == 0xffff, 0) \
|| __builtin_expect (ch < rp2->start, 0) \
|| (res = __ibm933db_to_ucs4[ch + rp2->idx], \
__builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \
{ \
/* This is an illegal character. */ \
- if (! ignore_errors_p ()) \
- { \
- result = __GCONV_ILLEGAL_INPUT; \
- break; \
- } \
- ++*irreversible; \
- inptr += 2; \
- continue; \
+ STANDARD_FROM_LOOP_ERR_HANDLER (2); \
} \
else \
{ \
} \
}
#define LOOP_NEED_FLAGS
+#define EXTRA_LOOP_DECLS , int *curcsp
+#define INIT_PARAMS int curcs = *curcsp & ~7
+#define UPDATE_PARAMS *curcsp = curcs
#include <iconv/loop.c>
/* Next, define the other direction. */
-#define MIN_NEEDED_INPUT MIN_NEEDED_TO
-#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
-#define INIT_PARAMS int curcs = init;
+#define MIN_NEEDED_INPUT TO_LOOP_MIN_NEEDED_FROM
+#define MAX_NEEDED_INPUT TO_LOOP_MAX_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT TO_LOOP_MIN_NEEDED_TO
+#define MAX_NEEDED_OUTPUT TO_LOOP_MAX_NEEDED_TO
#define LOOPFCT TO_LOOP
#define BODY \
{ \
const struct gap *rp2 = __ucs4_to_ibm933db_idx; \
const char *cp; \
\
- if (__builtin_expect (ch, 0) >= 0xffff) \
+ if (__glibc_unlikely (ch >= 0xffff)) \
{ \
- rp1 = NULL; \
- rp2 = NULL; \
+ UNICODE_TAG_HANDLER (ch, 4); \
+ \
+ STANDARD_TO_LOOP_ERR_HANDLER (4); \
} \
- else \
- while (ch > rp1->end) \
- ++rp1; \
+ \
+ while (ch > rp1->end) \
+ ++rp1; \
\
/* Use the UCS4 table for single byte. */ \
- if (__builtin_expect (rp1 == NULL, 0) \
- || __builtin_expect (ch < rp1->start, 0) \
+ if (__builtin_expect (ch < rp1->start, 0) \
|| (cp = __ucs4_to_ibm933sb[ch + rp1->idx], \
__builtin_expect (cp[0], L'\1') == L'\0' && ch != '\0')) \
{ \
while (ch > rp2->end) \
++rp2; \
\
- if (__builtin_expect (rp2 == NULL, 0) \
- || __builtin_expect (ch < rp2->start, 0) \
+ if (__builtin_expect (ch < rp2->start, 0) \
|| (cp = __ucs4_to_ibm933db[ch + rp2->idx], \
__builtin_expect (cp[0], L'\1')==L'\0' && ch != '\0')) \
{ \
/* This is an illegal character. */ \
- if (! ignore_errors_p ()) \
- { \
- result = __GCONV_ILLEGAL_INPUT; \
- break; \
- } \
- ++*irreversible; \
+ STANDARD_TO_LOOP_ERR_HANDLER (4); \
} \
else \
{ \
- if (curcs == init || curcs == sb) \
+ if (curcs == sb) \
{ \
- if (__builtin_expect (outptr+1 > outend, 0)) \
+ if (__glibc_unlikely (outptr + 1 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
curcs = db; \
} \
\
- if (__builtin_expect (outptr + 2 > outend, 0)) \
+ if (__glibc_unlikely (outptr + 2 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
{ \
if (curcs == db) \
{ \
- if (__builtin_expect (outptr + 1 > outend, 0)) \
+ if (__glibc_unlikely (outptr + 1 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
*outptr++ = SI; \
} \
\
- if (__builtin_expect (outptr + 1 > outend, 0)) \
+ if (__glibc_unlikely (outptr + 1 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
inptr += 4; \
}
#define LOOP_NEED_FLAGS
+#define EXTRA_LOOP_DECLS , int *curcsp
+#define INIT_PARAMS int curcs = *curcsp & ~7
+#define REINIT_PARAMS curcs = *curcsp & ~7
+#define UPDATE_PARAMS *curcsp = curcs
#include <iconv/loop.c>
/* Now define the toplevel functions. */
projects / platform / upstream / glibc.git / blobdiff