Started to use glib (not iconv) for character set conversions.

git-svn-id: https://svn.musicpd.org/ncmpc/trunk@524 09075e82-0dd4-0310-85a5-a0d7c8717e4f

6 files changed, 17 insertions, 337 deletions

diff --git a/configure.ac b/configure.ac
index 67b4c93a6..d11ba0f8c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -48,17 +48,6 @@ dnl
 dnl Check for libraries
 dnl
 
-dnl iconv
-AM_ICONV
-
-dnl nl_langinfo()
-AM_LANGINFO_CODESET
-if test $am_cv_langinfo_codeset = no; then
-  LANGINFO_OBJS=langinfo.o
-fi
-AC_SUBST(LANGINFO_OBJS)
-
-
 dnl ncurses
 AC_CHECK_LIB(ncurses, initscr,, [AC_MSG_ERROR(ncurses library is required)])
 
diff --git a/langinfo.c b/langinfo.c
deleted file mode 100644
index b7961ed90..000000000
--- a/langinfo.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * This is a quick-and-dirty emulator of the nl_langinfo(CODESET)
- * function defined in the Single Unix Specification for those systems
- * (FreeBSD, etc.) that don't have one yet. It behaves as if it had
- * been called after setlocale(LC_CTYPE, ""), that is it looks at
- * the locale environment variables.
- *
- * http://www.opengroup.org/onlinepubs/7908799/xsh/langinfo.h.html
- *
- * Please extend it as needed and suggest improvements to the author.
- * This emulator will hopefully become redundant soon as
- * nl_langinfo(CODESET) becomes more widely implemented.
- *
- * Since the proposed Li18nux encoding name registry is still not mature,
- * the output follows the MIME registry where possible:
- *
- *   http://www.iana.org/assignments/character-sets
- *
- * A possible autoconf test for the availability of nl_langinfo(CODESET)
- * can be found in
- *
- *   http://www.cl.cam.ac.uk/~mgk25/unicode.html#activate
- *
- * Markus.Kuhn@cl.cam.ac.uk -- 2002-03-11
- * Permission to use, copy, modify, and distribute this software
- * for any purpose and without fee is hereby granted. The author
- * disclaims all warranties with regard to this software.
- *
- * Latest version:
- *
- *   http://www.cl.cam.ac.uk/~mgk25/ucs/langinfo.c
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include "support.h"
-
-#define C_CODESET "US-ASCII"     /* Return this as the encoding of the
-				  * C/POSIX locale. Could as well one day
-				  * become "UTF-8". */
-
-#define digit(x) ((x) >= '0' && (x) <= '9')
-
-static char buf[16];
-
-char *nl_langinfo(nl_item item)
-{
-  char *l, *p;
-  
-  if (item != CODESET)
-    return NULL;
-  
-  if (((l = getenv("LC_ALL"))   && *l) ||
-      ((l = getenv("LC_CTYPE")) && *l) ||
-      ((l = getenv("LANG"))     && *l)) {
-    /* check standardized locales */
-    if (!strcmp(l, "C") || !strcmp(l, "POSIX"))
-      return C_CODESET;
-    /* check for encoding name fragment */
-    if (strstr(l, "UTF") || strstr(l, "utf"))
-      return "UTF-8";
-    if ((p = strstr(l, "8859-"))) {
-      memcpy(buf, "ISO-8859-\0\0", 12);
-      p += 5;
-      if (digit(*p)) {
-	buf[9] = *p++;
-	if (digit(*p)) buf[10] = *p++;
-	return buf;
-      }
-    }
-    if (strstr(l, "KOI8-R")) return "KOI8-R";
-    if (strstr(l, "KOI8-U")) return "KOI8-U";
-    if (strstr(l, "620")) return "TIS-620";
-    if (strstr(l, "2312")) return "GB2312";
-    if (strstr(l, "HKSCS")) return "Big5HKSCS";   /* no MIME charset */
-    if (strstr(l, "Big5") || strstr(l, "BIG5")) return "Big5";
-    if (strstr(l, "GBK")) return "GBK";           /* no MIME charset */
-    if (strstr(l, "18030")) return "GB18030";     /* no MIME charset */
-    if (strstr(l, "Shift_JIS") || strstr(l, "SJIS")) return "Shift_JIS";
-    /* check for conclusive modifier */
-    if (strstr(l, "euro")) return "ISO-8859-15";
-    /* check for language (and perhaps country) codes */
-    if (strstr(l, "zh_TW")) return "Big5";
-    if (strstr(l, "zh_HK")) return "Big5HKSCS";   /* no MIME charset */
-    if (strstr(l, "zh")) return "GB2312";
-    if (strstr(l, "ja")) return "EUC-JP";
-    if (strstr(l, "ko")) return "EUC-KR";
-    if (strstr(l, "ru")) return "KOI8-R";
-    if (strstr(l, "uk")) return "KOI8-U";
-    if (strstr(l, "pl") || strstr(l, "hr") ||
-	strstr(l, "hu") || strstr(l, "cs") ||
-	strstr(l, "sk") || strstr(l, "sl")) return "ISO-8859-2";
-    if (strstr(l, "eo") || strstr(l, "mt")) return "ISO-8859-3";
-    if (strstr(l, "el")) return "ISO-8859-7";
-    if (strstr(l, "he")) return "ISO-8859-8";
-    if (strstr(l, "tr")) return "ISO-8859-9";
-    if (strstr(l, "th")) return "TIS-620";      /* or ISO-8859-11 */
-    if (strstr(l, "lt")) return "ISO-8859-13";
-    if (strstr(l, "cy")) return "ISO-8859-14";
-    if (strstr(l, "ro")) return "ISO-8859-2";   /* or ISO-8859-16 */
-    if (strstr(l, "am") || strstr(l, "vi")) return "UTF-8";
-    /* Send me further rules if you like, but don't forget that we are
-     * *only* interested in locale naming conventions on platforms
-     * that do not already provide an nl_langinfo(CODESET) implementation. */
-    return "ISO-8859-1"; /* should perhaps be "UTF-8" instead */
-  }
-  return C_CODESET;
-}
-
-/* For a demo, compile with "gcc -W -Wall -o langinfo -D TEST langinfo.c" */
-
-#ifdef TEST
-#include <stdio.h>
-int main()
-{
-  printf("%s\n", nl_langinfo(CODESET));
-  return 0;
-}
-#endif
diff --git a/m4/codeset.m4 b/m4/codeset.m4
deleted file mode 100644
index 59535ebcf..000000000
--- a/m4/codeset.m4
+++ /dev/null
@@ -1,23 +0,0 @@
-# codeset.m4 serial AM1 (gettext-0.10.40)
-dnl Copyright (C) 2000-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Bruno Haible.
-
-AC_DEFUN([AM_LANGINFO_CODESET],
-[
-  AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
-    [AC_TRY_LINK([#include <langinfo.h>],
-      [char* cs = nl_langinfo(CODESET);],
-      am_cv_langinfo_codeset=yes,
-      am_cv_langinfo_codeset=no)
-    ])
-  if test $am_cv_langinfo_codeset = yes; then
-    AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
-      [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
-  fi
-])
diff --git a/m4/iconv.m4 b/m4/iconv.m4
deleted file mode 100644
index 17237344a..000000000
--- a/m4/iconv.m4
+++ /dev/null
@@ -1,69 +0,0 @@
-#serial AM2
-
-dnl From Bruno Haible.
-
-AC_DEFUN([AM_ICONV],
-[
-  dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
-  dnl those with the standalone portable GNU libiconv installed).
-
-  AC_ARG_WITH([libiconv-prefix],
-[  --with-libiconv-prefix=DIR  search for libiconv in DIR/include and DIR/lib], [
-    for dir in `echo "$withval" | tr : ' '`; do
-      if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
-      if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi
-    done
-   ])
-
-  AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
-    am_cv_func_iconv="no, consider installing GNU libiconv"
-    am_cv_lib_iconv=no
-    AC_TRY_LINK([#include <stdlib.h>
-#include <iconv.h>],
-      [iconv_t cd = iconv_open("","");
-       iconv(cd,NULL,NULL,NULL,NULL);
-       iconv_close(cd);],
-      am_cv_func_iconv=yes)
-    if test "$am_cv_func_iconv" != yes; then
-      am_save_LIBS="$LIBS"
-      LIBS="$LIBS -liconv"
-      AC_TRY_LINK([#include <stdlib.h>
-#include <iconv.h>],
-        [iconv_t cd = iconv_open("","");
-         iconv(cd,NULL,NULL,NULL,NULL);
-         iconv_close(cd);],
-        am_cv_lib_iconv=yes
-        am_cv_func_iconv=yes)
-      LIBS="$am_save_LIBS"
-    fi
-  ])
-  if test "$am_cv_func_iconv" = yes; then
-    AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
-    AC_MSG_CHECKING([for iconv declaration])
-    AC_CACHE_VAL(am_cv_proto_iconv, [
-      AC_TRY_COMPILE([
-#include <stdlib.h>
-#include <iconv.h>
-extern
-#ifdef __cplusplus
-"C"
-#endif
-#if defined(__STDC__) || defined(__cplusplus)
-size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
-#else
-size_t iconv();
-#endif
-], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
-      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
-    am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
-    AC_MSG_RESULT([$]{ac_t:-
-         }[$]am_cv_proto_iconv)
-    AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
-      [Define as const if the declaration of iconv() needs const.])
-  fi
-  LIBICONV=
-  if test "$am_cv_lib_iconv" = yes; then
-    LIBICONV="-liconv"
-  fi
-  AC_SUBST(LIBICONV)
-])
diff --git a/support.c b/support.c
index 907c5085f..2b5d46ce8 100644
--- a/support.c
+++ b/support.c
@@ -1,6 +1,4 @@
 #include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <glib.h>
@@ -12,27 +10,11 @@
 #include <locale.h>
 #endif
 
-#ifdef HAVE_ICONV
-#include <iconv.h>
-#endif
-
-#ifdef HAVE_LANGINFO_CODESET
-#include <langinfo.h>
-#endif
-
 #define BUFSIZE 1024
 
-
-static char *charset = NULL;
-
-#ifdef HAVE_LOCALE_H
-static char *locale = NULL;
-#endif
-
-#ifdef HAVE_ICONV
-iconv_t iconv_from_uft8 = (iconv_t)(-1);
-iconv_t iconv_to_uft8 = (iconv_t)(-1);
-#endif
+static const char *charset = NULL;
+static const char *locale = NULL;
+static gboolean noconvert = TRUE;
 
 char *
 trim(char *str)
@@ -104,11 +86,11 @@ concat_path(char *p1, char *p2)
   size += strlen(p2);
   size++;
 
-  path = calloc(size, sizeof(char));
-  strncpy(path, p1, size);
+  path =  g_malloc0(size*sizeof(char));
+  g_strlcpy(path, p1, size);
   if( append_slash )
-    strncat(path, "/", size);
-  strncat(path, p2, size);
+    g_strlcat(path, "/", size);
+  g_strlcat(path, p2, size);
 
   return path;
 }
@@ -151,115 +133,41 @@ charset_init(void)
   /* get current locale */
   if( (locale=setlocale(LC_CTYPE,"")) == NULL )
     {
-      fprintf(stderr,"setlocale() - failed!\n");
+      g_printerr("setlocale() - failed!\n");
       return -1;
     }
 #endif
 
   /* get charset */
-  if( (charset=nl_langinfo(CODESET)) == NULL )
-    {
-      fprintf(stderr,
-	      "nl_langinfo() failed using default:" DEFAULT_CHARSET "\n");
-      charset = DEFAULT_CHARSET;
-    }
+  noconvert = g_get_charset(&charset);
+
 #ifdef DEBUG
-  fprintf(stderr, "charset: %s\n", charset);
+  g_printerr("charset: %s\n", charset);
 #endif
   
-#ifdef HAVE_ICONV
-  /* allocate descriptor for character set conversion */
-  iconv_from_uft8 = iconv_open(charset, "UTF-8");
-  if( iconv_from_uft8 == (iconv_t)(-1) )
-    {
-      perror("iconv_open");
-      return -1;
-    }
-  iconv_to_uft8 = iconv_open("UTF-8", charset);
-  if( iconv_to_uft8 == (iconv_t)(-1) )
-    {
-      perror("iconv_open");
-      return -1;
-    }
-#endif
-
   return 0;
 }
 
 int
 charset_close(void)
 {
-#ifdef HAVE_ICONV
-  if( iconv_from_uft8 != (iconv_t)(-1) )
-    {
-      iconv_close(iconv_from_uft8);
-      iconv_from_uft8 = (iconv_t)(-1);
-    }
-  if( iconv_to_uft8 != (iconv_t)(-1) )
-    {
-      iconv_close(iconv_to_uft8);
-      iconv_to_uft8 = (iconv_t)(-1);
-    }
-#endif
   return 0;
 }
 
-#ifdef HAVE_ICONV
-static char *
-charconv(iconv_t iv, char *str)
-{
-  size_t inleft;
-  size_t retlen;
-  char *ret;
-
-  if( str==NULL )
-    return NULL;
-
-  if( iv == (iconv_t)(-1) )
-    return strdup(str);
-
-  ret = NULL;
-  retlen = 0;
-  inleft = strlen(str);
-  while( inleft>0 )
-    {
-      char buf[BUFSIZE];
-      size_t outleft = BUFSIZE;
-      char *bufp = buf;
-
-      if( iconv(iv, &str, &inleft, &bufp, &outleft) <0 )
-	{
-	  perror("iconv");
-	  free(ret);
-	  return NULL;
-	}
-      ret = realloc(ret, BUFSIZE-outleft+1);
-      memcpy(ret+retlen, buf, BUFSIZE-outleft);
-      retlen += BUFSIZE-outleft;
-      ret[retlen] = '\0';
-    }
-  return ret;
-}
-#endif
-
 char *
 utf8_to_locale(char *str)
 {
-#ifdef HAVE_ICONV
-  return charconv(iconv_from_uft8, str);
-#else
-  return strdup(str);
-#endif
+  if( noconvert )
+    return g_strup(str);
+  return g_locale_from_utf8(str, -1, NULL, NULL, NULL);
 }
 
 char *
 locale_to_utf8(char *str)
 {
-#ifdef HAVE_ICONV
-  return charconv(iconv_to_uft8, str);
-#else
-  return strdup(str);
-#endif
+  if( noconvert )
+    return g_strup(str);
+  return g_locale_to_utf8(str, -1, NULL, NULL, NULL);
 }
 
 
diff --git a/support.h b/support.h
index b82751dd1..adba8a05d 100644
--- a/support.h
+++ b/support.h
@@ -3,12 +3,6 @@
 #include <libgen.h>
 #endif
 
-#ifndef HAVE_LANGINFO_CODESET
-#define CODESET ((nl_item) 1)
-typedef int nl_item;
-char *nl_langinfo(nl_item);
-#endif
-
 char *concat_path(char *p1, char *p2);
 
 #ifndef HAVE_BASENAME