utf8 <-> iso8859 conversion

src/lib/co/src/co_cnv.c

+/* 
+ * Proview   $Id: co_cnv.c,v 1.1 2007-06-01 11:26:06 claes Exp $
+ * Copyright (C) 2005 SSAB Oxelsund AB.
+ *
+ * This program is free software; you can redistribute it and/or 
+ * modify it under the terms of the GNU General Public License as 
+ * published by the Free Software Foundation, either version 2 of 
+ * the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with the program, if not, write to the Free Software 
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <float.h>
+#include <string.h>
+#include <iconv.h>
+#include "co_cnv.h"
+
+char *cnv_iso8859_to_utf8( char *iso, size_t iso_size)
+{
+  static iconv_t cd = 0;
+  static char utf8[2048];
+  char *utf8p = utf8;
+  size_t utf8_size = sizeof(utf8);
+  
+  if ( !cd)
+    cd = iconv_open( "UTF-8", "ISO8859-1");
+
+  if ( iconv( cd, &iso, &iso_size, &utf8p, &utf8_size) == (size_t)(-1))
+    strcpy( utf8, "");
+
+  return utf8;
+}
+
+char *cnv_utf8_to_iso8859( char *utf8, size_t utf8_size)
+{
+  static iconv_t cd = 0;
+  static char iso[2048];
+  char *isop = iso;
+  size_t iso_size = sizeof(iso);
+  
+  if ( !cd)
+    cd = iconv_open( "ISO8859-1", "UTF-8");
+
+  if ( iconv( cd, &utf8, &utf8_size, &isop, &iso_size) == (size_t)(-1))
+    strcpy( iso, "");
+
+  return iso;
+}

src/lib/co/src/co_cnv.h

+/* 
+ * Proview   $Id: co_cnv.h,v 1.1 2007-06-01 11:26:06 claes Exp $
+ * Copyright (C) 2005 SSAB Oxelösund AB.
+ *
+ * This program is free software; you can redistribute it and/or 
+ * modify it under the terms of the GNU General Public License as 
+ * published by the Free Software Foundation, either version 2 of 
+ * the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License 
+ * along with the program, if not, write to the Free Software 
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+char *cnv_utf8_to_iso8859( char *utf8, size_t utf8_size);
+char *cnv_iso8859_to_utf8( char *iso, size_t iso_size);