glibc/iconvdata/iso-ir-165.h
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

107 lines
2.8 KiB
C

/* Tables for conversion to and from ISO-IR-165.
converting from UCS using gaps.
Copyright (C) 2000-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
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/>. */
#ifndef _ISO_IR_165_H
#define _ISO_IR_165_H 1
#include <gconv.h>
#include <stdint.h>
struct gap
{
uint16_t start;
uint16_t end;
int32_t idx;
};
/* Table for ISO-IR-165 (CCITT Chinese) to UCS4 conversion. */
#define ISOIR165_FROMSIZE 0x2284
extern const uint16_t __isoir165_to_tab[ISOIR165_FROMSIZE];
/* XXX If we at some point need an offset value to decode the byte
sequences another parameter can be added. */
static inline uint32_t
__attribute ((always_inline))
isoir165_to_ucs4 (const unsigned char **s, size_t avail)
{
unsigned char ch = *(*s);
unsigned char ch2;
uint32_t res;
if (ch <= 0x20 || ch >= 0x7f)
return __UNKNOWN_10646_CHAR;
if (avail < 2)
return 0;
ch2 = (*s)[1];
if (ch2 <= 0x20 || ch2 >= 0x7f)
return __UNKNOWN_10646_CHAR;
res = __isoir165_to_tab[(ch - 0x21) * 94 + (ch2 - 0x21)];
if (res == 0)
return __UNKNOWN_10646_CHAR;
*s += 2;
return res;
}
/* Tables for ISO-IR-165 (CCITT Chinese) from UCS4 conversion. */
extern const struct gap __isoir165_from_idx[];
extern const char __isoir165_from_tab[];
static inline size_t
__attribute ((always_inline))
ucs4_to_isoir165 (uint32_t wch, unsigned char *s, size_t avail)
{
unsigned int ch = (unsigned int) wch;
const char *cp;
const struct gap *rp = __isoir165_from_idx;
if (ch > 0xffe5)
/* This is an illegal character. */
return __UNKNOWN_10646_CHAR;
while (ch > rp->end)
++rp;
if (ch < rp->start)
/* This is an illegal character. */
return __UNKNOWN_10646_CHAR;
/* The two bytes following the index given in this record give the
encoding in ISO-IR-165. Unless the bytes are zero. */
cp = &__isoir165_from_tab[(ch + rp->idx) * 2];
if (*cp == '\0')
/* This is an illegal character. */
return __UNKNOWN_10646_CHAR;
if (avail < 2)
return 0;
s[0] = cp[0];
s[1] = cp[1];
return 2;
}
#endif /* iso-ir-165.h */