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|
# iconv_open-utf.m4 serial 5
dnl Copyright (C) 2007-2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
# A placeholder to ensure that this m4 file gets included by aclocal.
AC_DEFUN([gl_FUNC_ICONV_OPEN_UTF], [])
AC_DEFUN([gl_FUNC_ICONV_OPEN_UTF_SUPPORT],
[
dnl This macro relies on am_cv_func_iconv and gl_func_iconv_gnu from
dnl gl_FUNC_ICONV_OPEN, but is called from within gl_FUNC_ICONV_OPEN.
dnl *Not* AC_REQUIRE([gl_FUNC_ICONV_OPEN]).
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_REQUIRE([gl_ICONV_H_DEFAULTS])
if test "$am_cv_func_iconv" = yes; then
AC_CACHE_CHECK([whether iconv supports conversion between UTF-8 and UTF-{16,32}{BE,LE}],
[gl_cv_func_iconv_supports_utf],
[
save_LIBS="$LIBS"
LIBS="$LIBS $LIBICONV"
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <iconv.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main ()
{
int result = 0;
/* Test conversion from UTF-8 to UTF-16BE with no errors. */
{
static const char input[] =
"Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
static const char expected[] =
"\000J\000a\000p\000a\000n\000e\000s\000e\000 \000(\145\345\147\054\212\236\000)\000 \000[\330\065\335\015\330\065\335\036\330\065\335\055\000]";
iconv_t cd;
cd = iconv_open ("UTF-16BE", "UTF-8");
if (cd == (iconv_t)(-1))
result |= 1;
else
{
char buf[100];
const char *inptr;
size_t inbytesleft;
char *outptr;
size_t outbytesleft;
size_t res;
inptr = input;
inbytesleft = sizeof (input) - 1;
outptr = buf;
outbytesleft = sizeof (buf);
res = iconv (cd,
(ICONV_CONST char **) &inptr, &inbytesleft,
&outptr, &outbytesleft);
if (!(res == 0 && inbytesleft == 0))
result |= 1;
else if (!(outptr == buf + (sizeof (expected) - 1)))
result |= 1;
else if (!(memcmp (buf, expected, sizeof (expected) - 1) == 0))
result |= 1;
else if (!(iconv_close (cd) == 0))
result |= 1;
}
}
/* Test conversion from UTF-8 to UTF-16LE with no errors. */
{
static const char input[] =
"Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
static const char expected[] =
"J\000a\000p\000a\000n\000e\000s\000e\000 \000(\000\345\145\054\147\236\212)\000 \000[\000\065\330\015\335\065\330\036\335\065\330\055\335]\000";
iconv_t cd;
cd = iconv_open ("UTF-16LE", "UTF-8");
if (cd == (iconv_t)(-1))
result |= 2;
else
{
char buf[100];
const char *inptr;
size_t inbytesleft;
char *outptr;
size_t outbytesleft;
size_t res;
inptr = input;
inbytesleft = sizeof (input) - 1;
outptr = buf;
outbytesleft = sizeof (buf);
res = iconv (cd,
(ICONV_CONST char **) &inptr, &inbytesleft,
&outptr, &outbytesleft);
if (!(res == 0 && inbytesleft == 0))
result |= 2;
else if (!(outptr == buf + (sizeof (expected) - 1)))
result |= 2;
else if (!(memcmp (buf, expected, sizeof (expected) - 1) == 0))
result |= 2;
else if (!(iconv_close (cd) == 0))
result |= 2;
}
}
/* Test conversion from UTF-8 to UTF-32BE with no errors. */
{
static const char input[] =
"Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
static const char expected[] =
"\000\000\000J\000\000\000a\000\000\000p\000\000\000a\000\000\000n\000\000\000e\000\000\000s\000\000\000e\000\000\000 \000\000\000(\000\000\145\345\000\000\147\054\000\000\212\236\000\000\000)\000\000\000 \000\000\000[\000\001\325\015\000\001\325\036\000\001\325\055\000\000\000]";
iconv_t cd;
cd = iconv_open ("UTF-32BE", "UTF-8");
if (cd == (iconv_t)(-1))
result |= 4;
else
{
char buf[100];
const char *inptr;
size_t inbytesleft;
char *outptr;
size_t outbytesleft;
size_t res;
inptr = input;
inbytesleft = sizeof (input) - 1;
outptr = buf;
outbytesleft = sizeof (buf);
res = iconv (cd,
(ICONV_CONST char **) &inptr, &inbytesleft,
&outptr, &outbytesleft);
if (!(res == 0 && inbytesleft == 0))
result |= 4;
else if (!(outptr == buf + (sizeof (expected) - 1)))
result |= 4;
else if (!(memcmp (buf, expected, sizeof (expected) - 1) == 0))
result |= 4;
else if (!(iconv_close (cd) == 0))
result |= 4;
}
}
/* Test conversion from UTF-8 to UTF-32LE with no errors. */
{
static const char input[] =
"Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
static const char expected[] =
"J\000\000\000a\000\000\000p\000\000\000a\000\000\000n\000\000\000e\000\000\000s\000\000\000e\000\000\000 \000\000\000(\000\000\000\345\145\000\000\054\147\000\000\236\212\000\000)\000\000\000 \000\000\000[\000\000\000\015\325\001\000\036\325\001\000\055\325\001\000]\000\000\000";
iconv_t cd;
cd = iconv_open ("UTF-32LE", "UTF-8");
if (cd == (iconv_t)(-1))
result |= 8;
else
{
char buf[100];
const char *inptr;
size_t inbytesleft;
char *outptr;
size_t outbytesleft;
size_t res;
inptr = input;
inbytesleft = sizeof (input) - 1;
outptr = buf;
outbytesleft = sizeof (buf);
res = iconv (cd,
(ICONV_CONST char **) &inptr, &inbytesleft,
&outptr, &outbytesleft);
if (!(res == 0 && inbytesleft == 0))
result |= 8;
else if (!(outptr == buf + (sizeof (expected) - 1)))
result |= 8;
else if (!(memcmp (buf, expected, sizeof (expected) - 1) == 0))
result |= 8;
else if (!(iconv_close (cd) == 0))
result |= 8;
}
}
/* Test conversion from UTF-16BE to UTF-8 with no errors.
This test fails on NetBSD 3.0. */
{
static const char input[] =
"\000J\000a\000p\000a\000n\000e\000s\000e\000 \000(\145\345\147\054\212\236\000)\000 \000[\330\065\335\015\330\065\335\036\330\065\335\055\000]";
static const char expected[] =
"Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
iconv_t cd;
cd = iconv_open ("UTF-8", "UTF-16BE");
if (cd == (iconv_t)(-1))
result |= 16;
else
{
char buf[100];
const char *inptr;
size_t inbytesleft;
char *outptr;
size_t outbytesleft;
size_t res;
inptr = input;
inbytesleft = sizeof (input) - 1;
outptr = buf;
outbytesleft = sizeof (buf);
res = iconv (cd,
(ICONV_CONST char **) &inptr, &inbytesleft,
&outptr, &outbytesleft);
if (!(res == 0 && inbytesleft == 0))
result |= 16;
else if (!(outptr == buf + (sizeof (expected) - 1)))
result |= 16;
else if (!(memcmp (buf, expected, sizeof (expected) - 1) == 0))
result |= 16;
else if (!(iconv_close (cd) == 0))
result |= 16;
}
}
return result;
}]])],
[gl_cv_func_iconv_supports_utf=yes],
[gl_cv_func_iconv_supports_utf=no],
[
dnl We know that GNU libiconv, GNU libc, musl libc, and Solaris >= 9 do.
dnl OSF/1 5.1 has these encodings, but inserts a BOM in the "to"
dnl direction.
gl_cv_func_iconv_supports_utf="$gl_cross_guess_normal"
if test $gl_func_iconv_gnu = yes; then
gl_cv_func_iconv_supports_utf="guessing yes"
else
changequote(,)dnl
case "$host_os" in
*-musl* | midipix*) gl_cv_func_iconv_supports_utf="guessing yes" ;;
solaris2.9 | solaris2.1[0-9]) gl_cv_func_iconv_supports_utf="guessing yes" ;;
esac
changequote([,])dnl
fi
])
LIBS="$save_LIBS"
])
fi
])
|
