diff options
Diffstat (limited to 'm4/iconv_open.m4')
| -rw-r--r-- | m4/iconv_open.m4 | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/m4/iconv_open.m4 b/m4/iconv_open.m4 new file mode 100644 index 000000000..c7b948e90 --- /dev/null +++ b/m4/iconv_open.m4 @@ -0,0 +1,237 @@ +# iconv_open.m4 serial 5 +dnl Copyright (C) 2007-2009 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. + +AC_DEFUN([gl_FUNC_ICONV_OPEN], +[ + AC_REQUIRE([AM_ICONV]) + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_ICONV_H_DEFAULTS]) + if test "$am_cv_func_iconv" = yes; then + dnl Test whether iconv_open accepts standardized encoding names. + dnl We know that GNU libiconv and GNU libc do. + AC_EGREP_CPP([gnu_iconv], [ + #include <iconv.h> + #if defined _LIBICONV_VERSION || defined __GLIBC__ + gnu_iconv + #endif + ], [gl_func_iconv_gnu=yes], [gl_func_iconv_gnu=no]) + if test $gl_func_iconv_gnu = no; then + iconv_flavor= + case "$host_os" in + aix*) iconv_flavor=ICONV_FLAVOR_AIX ;; + irix*) iconv_flavor=ICONV_FLAVOR_IRIX ;; + hpux*) iconv_flavor=ICONV_FLAVOR_HPUX ;; + osf*) iconv_flavor=ICONV_FLAVOR_OSF ;; + esac + if test -n "$iconv_flavor"; then + AC_DEFINE_UNQUOTED([ICONV_FLAVOR], [$iconv_flavor], + [Define to a symbolic name denoting the flavor of iconv_open() + implementation.]) + gl_REPLACE_ICONV_OPEN + fi + fi + fi +]) + +AC_DEFUN([gl_REPLACE_ICONV_OPEN], +[ + gl_REPLACE_ICONV_H + REPLACE_ICONV_OPEN=1 + AC_LIBOBJ([iconv_open]) +]) + +AC_DEFUN([gl_FUNC_ICONV_OPEN_UTF], +[ + AC_REQUIRE([gl_FUNC_ICONV_OPEN]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_ICONV_H_DEFAULTS]) + if test "$am_cv_func_iconv" = yes; then + if test -n "$am_cv_proto_iconv_arg1"; then + ICONV_CONST="const" + else + ICONV_CONST= + fi + AC_SUBST([ICONV_CONST]) + 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_TRY_RUN([ +#include <iconv.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#define ASSERT(expr) if (!(expr)) return 1; +int main () +{ + /* 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; + char buf[100]; + const char *inptr; + size_t inbytesleft; + char *outptr; + size_t outbytesleft; + size_t res; + cd = iconv_open ("UTF-16BE", "UTF-8"); + ASSERT (cd != (iconv_t)(-1)); + inptr = input; + inbytesleft = sizeof (input) - 1; + outptr = buf; + outbytesleft = sizeof (buf); + res = iconv (cd, + (ICONV_CONST char **) &inptr, &inbytesleft, + &outptr, &outbytesleft); + ASSERT (res == 0 && inbytesleft == 0); + ASSERT (outptr == buf + (sizeof (expected) - 1)); + ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); + ASSERT (iconv_close (cd) == 0); + } + /* 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; + char buf[100]; + const char *inptr; + size_t inbytesleft; + char *outptr; + size_t outbytesleft; + size_t res; + cd = iconv_open ("UTF-16LE", "UTF-8"); + ASSERT (cd != (iconv_t)(-1)); + inptr = input; + inbytesleft = sizeof (input) - 1; + outptr = buf; + outbytesleft = sizeof (buf); + res = iconv (cd, + (ICONV_CONST char **) &inptr, &inbytesleft, + &outptr, &outbytesleft); + ASSERT (res == 0 && inbytesleft == 0); + ASSERT (outptr == buf + (sizeof (expected) - 1)); + ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); + ASSERT (iconv_close (cd) == 0); + } + /* 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; + char buf[100]; + const char *inptr; + size_t inbytesleft; + char *outptr; + size_t outbytesleft; + size_t res; + cd = iconv_open ("UTF-32BE", "UTF-8"); + ASSERT (cd != (iconv_t)(-1)); + inptr = input; + inbytesleft = sizeof (input) - 1; + outptr = buf; + outbytesleft = sizeof (buf); + res = iconv (cd, + (ICONV_CONST char **) &inptr, &inbytesleft, + &outptr, &outbytesleft); + ASSERT (res == 0 && inbytesleft == 0); + ASSERT (outptr == buf + (sizeof (expected) - 1)); + ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); + ASSERT (iconv_close (cd) == 0); + } + /* 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; + char buf[100]; + const char *inptr; + size_t inbytesleft; + char *outptr; + size_t outbytesleft; + size_t res; + cd = iconv_open ("UTF-32LE", "UTF-8"); + ASSERT (cd != (iconv_t)(-1)); + inptr = input; + inbytesleft = sizeof (input) - 1; + outptr = buf; + outbytesleft = sizeof (buf); + res = iconv (cd, + (ICONV_CONST char **) &inptr, &inbytesleft, + &outptr, &outbytesleft); + ASSERT (res == 0 && inbytesleft == 0); + ASSERT (outptr == buf + (sizeof (expected) - 1)); + ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); + ASSERT (iconv_close (cd) == 0); + } + /* 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; + char buf[100]; + const char *inptr; + size_t inbytesleft; + char *outptr; + size_t outbytesleft; + size_t res; + cd = iconv_open ("UTF-8", "UTF-16BE"); + ASSERT (cd != (iconv_t)(-1)); + inptr = input; + inbytesleft = sizeof (input) - 1; + outptr = buf; + outbytesleft = sizeof (buf); + res = iconv (cd, + (ICONV_CONST char **) &inptr, &inbytesleft, + &outptr, &outbytesleft); + ASSERT (res == 0 && inbytesleft == 0); + ASSERT (outptr == buf + (sizeof (expected) - 1)); + ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); + ASSERT (iconv_close (cd) == 0); + } + return 0; +}], [gl_cv_func_iconv_supports_utf=yes], [gl_cv_func_iconv_supports_utf=no], + [ + dnl We know that GNU libiconv, GNU 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=no + if test $gl_func_iconv_gnu = yes; then + gl_cv_func_iconv_supports_utf=yes + else +changequote(,)dnl + case "$host_os" in + solaris2.9 | solaris2.1[0-9]) gl_cv_func_iconv_supports_utf=yes ;; + esac +changequote([,])dnl + fi + ]) + LIBS="$save_LIBS" + ]) + if test $gl_cv_func_iconv_supports_utf = no; then + REPLACE_ICONV_UTF=1 + AC_DEFINE([REPLACE_ICONV_UTF], [1], + [Define if the iconv() functions are enhanced to handle the UTF-{16,32}{BE,LE} encodings.]) + REPLACE_ICONV=1 + gl_REPLACE_ICONV_OPEN + AC_LIBOBJ([iconv]) + AC_LIBOBJ([iconv_close]) + fi + fi +]) |