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glibc/iconvdata/ibm1364.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs 
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

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/* Conversion from and to IBM1364.
Copyright (C) 2005-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Masahide Washizawa <washi@jp.ibm.com>, 2005.
The GNU C Library is free software; you can redistribute it and/or
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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <dlfcn.h>
#include <stdint.h>
#include <wchar.h>
#include <byteswap.h>
#ifndef CHARSET_NAME
/* This is really the IBM1364 converter, not another module sharing
the code. */
# define DATA_HEADER "ibm1364.h"
# define CHARSET_NAME "IBM1364//"
# define FROM_LOOP from_ibm1364
# define TO_LOOP to_ibm1364
# define SB_TO_UCS4 __ibm1364sb_to_ucs4
# define DB_TO_UCS4_IDX __ibm1364db_to_ucs4_idx
# define DB_TO_UCS4 __ibm1364db_to_ucs4
# define UCS4_TO_SB_IDX __ucs4_to_ibm1364sb_idx
# define UCS4_TO_SB __ucs4_to_ibm1364sb
# define UCS4_TO_DB_IDX __ucs4_to_ibm1364db_idx
# define UCS4_TO_DB __ucs4_to_ibm1364db
# define UCS_LIMIT 0xffff
#endif
#include DATA_HEADER
/* The shift sequences for this charset (it does not use ESC). */
#define SI 0x0F /* Shift In, host code to turn DBCS off. */
#define SO 0x0E /* Shift Out, host code to turn DBCS on. */
/* Definitions used in the body of the `gconv' function. */
#define MIN_NEEDED_FROM 1
#define MAX_NEEDED_FROM 2
#define MIN_NEEDED_TO 4
#ifdef HAS_COMBINED
# define MAX_NEEDED_TO 8
#else
# define MAX_NEEDED_TO 4
#endif
#define ONE_DIRECTION 0
#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
/* 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
{
sb = 0,
db = 64
};
/* Subroutine to write out converted UCS4 from IBM-13XX. */
#ifdef HAS_COMBINED
# define SUB_COMBINED_UCS_FROM_IBM13XX \
{ \
if (res != UCS_LIMIT || ch < __TO_UCS4_COMBINED_MIN \
|| ch > __TO_UCS4_COMBINED_MAX) \
{ \
put32 (outptr, res); \
outptr += 4; \
} \
else \
{ \
/* This is a combined character. Make sure we have room. */ \
if (__glibc_unlikely (outptr + 8 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
\
const struct divide *cmbp \
= &DB_TO_UCS4_COMB[ch - __TO_UCS4_COMBINED_MIN]; \
assert (cmbp->res1 != 0 && cmbp->res2 != 0); \
\
put32 (outptr, cmbp->res1); \
outptr += 4; \
put32 (outptr, cmbp->res2); \
outptr += 4; \
} \
}
#else
# define SUB_COMBINED_UCS_FROM_IBM13XX \
{ \
put32 (outptr, res); \
outptr += 4; \
}
#endif /* HAS_COMBINED */
/* First, define the conversion function from IBM-13XX to UCS4. */
#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
#define MAX_NEEDED_INPUT MAX_NEEDED_FROM
#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
#define MAX_NEEDED_OUTPUT MAX_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
uint32_t ch = *inptr; \
\
if (__builtin_expect (ch, 0) == SO) \
{ \
/* Shift OUT, change to DBCS converter. */ \
if (curcs == db) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
curcs = db; \
++inptr; \
continue; \
} \
if (__builtin_expect (ch, 0) == SI) \
{ \
/* Shift IN, change to SBCS converter. */ \
if (curcs == sb) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
curcs = sb; \
++inptr; \
continue; \
} \
\
if (curcs == sb) \
{ \
/* Use the IBM13XX table for single byte. */ \
uint32_t res = SB_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; \
} \
else \
{ \
put32 (outptr, res); \
outptr += 4; \
} \
++inptr; \
} \
else \
{ \
assert (curcs == db); \
\
if (__glibc_unlikely (inptr + 1 >= inend)) \
{ \
/* The second character is not available. Store the \
intermediate result. */ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
\
ch = (ch * 0x100) + inptr[1]; \
\
/* Use the IBM1364 table for double byte. */ \
const struct gap *rp2 = DB_TO_UCS4_IDX; \
while (ch > rp2->end) \
++rp2; \
\
uint32_t res; \
if (__builtin_expect (rp2->start == 0xffff, 0) \
|| __builtin_expect (ch < rp2->start, 0) \
|| (res = DB_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; \
} \
else \
{ \
SUB_COMBINED_UCS_FROM_IBM13XX; \
} \
inptr += 2; \
} \
}
#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>
/* Subroutine to convert two UCS4 codes to IBM-13XX. */
#ifdef HAS_COMBINED
# define SUB_COMBINED_UCS_TO_IBM13XX \
{ \
const struct combine *cmbp = UCS4_COMB_TO_DB; \
while (cmbp->res1 < ch) \
++cmbp; \
/* XXX if last char is beginning of combining store in state */ \
if (cmbp->res1 == ch && inptr + 4 < inend) \
{ \
/* See if input is part of a combined character. */ \
uint32_t ch_next = get32 (inptr + 4); \
while (cmbp->res2 != ch_next) \
{ \
++cmbp; \
if (cmbp->res1 != ch) \
goto not_combined; \
} \
\
/* It is a combined character. First make sure we are in \
double byte mode. */ \
if (curcs == sb) \
{ \
/* We know there is room for at least one byte. */ \
*outptr++ = SO; \
curcs = db; \
} \
\
if (__glibc_unlikely (outptr + 2 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = cmbp->ch[0]; \
*outptr++ = cmbp->ch[1]; \
inptr += 8; \
continue; \
\
not_combined:; \
} \
}
#else
# define SUB_COMBINED_UCS_TO_IBM13XX
#endif /* HAS_COMBINED */
/* Next, define the other direction. */
#define MIN_NEEDED_INPUT MIN_NEEDED_TO
#define MAX_NEEDED_INPUT MAX_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 = get32 (inptr); \
\
if (__glibc_unlikely (ch >= UCS_LIMIT)) \
{ \
UNICODE_TAG_HANDLER (ch, 4); \
\
if (! ignore_errors_p ()) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
++*irreversible; \
inptr += 4; \
continue; \
} \
\
SUB_COMBINED_UCS_TO_IBM13XX; \
\
const struct gap *rp1 = UCS4_TO_SB_IDX; \
while (ch > rp1->end) \
++rp1; \
\
/* Use the UCS4 table for single byte. */ \
const char *cp; \
if (__builtin_expect (ch < rp1->start, 0) \
|| (cp = UCS4_TO_SB[ch + rp1->idx], \
__builtin_expect (cp[0], L'\1') == L'\0' && ch != '\0')) \
{ \
/* Use the UCS4 table for double byte. */ \
const struct gap *rp2 = UCS4_TO_DB_IDX; \
while (ch > rp2->end) \
++rp2; \
\
if (__builtin_expect (ch < rp2->start, 0) \
|| (cp = UCS4_TO_DB[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; \
} \
else \
{ \
if (curcs == sb) \
{ \
/* We know there is room for at least one byte. */ \
*outptr++ = SO; \
curcs = db; \
} \
\
if (__glibc_unlikely (outptr + 2 > outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = cp[0]; \
*outptr++ = cp[1]; \
} \
} \
else \
{ \
if (__glibc_unlikely (curcs == db)) \
{ \
/* We know there is room for at least one byte. */ \
*outptr++ = SI; \
curcs = sb; \
\
if (__glibc_unlikely (outptr >= outend)) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
} \
\
*outptr++ = cp[0]; \
} \
\
/* Now that we wrote the output increment the input pointer. */ \
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. */
#include <iconv/skeleton.c>
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