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