Initial import of Sylpheed (GTK2 version).

git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@1 ee746299-78ed-0310-b773-934348b2243d

1 files changed, 386 insertions, 0 deletions

diff --git a/src/simple-gettext.c b/src/simple-gettext.c
new file mode 100644
index 00000000..be6292bb
--- /dev/null
+++ b/src/simple-gettext.c
@@ -0,0 +1,386 @@
+/* simple-gettext.c  - a simplified version of gettext.
+ * Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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.
+ *
+ * GnuPG 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+/* This is a simplified version of gettext written by Ulrich Drepper.
+ * It is used for the Win32 version of GnuPG becuase all the overhead
+ * of gettext is not needed and we have to do some special Win32 stuff.
+ * I decided that this is far easier than to tweak gettext for the special
+ * cases (I tried it but it is a lot of code).	wk 15.09.99
+ */
+
+#include <config.h>
+#ifdef USE_SIMPLE_GETTEXT
+#ifndef __MINGW32__
+  #error This file can only be used with MinGW32
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <windows.h>
+#include "w32reg.h"
+
+typedef unsigned int u32; /* That is fine with MingW32 */
+
+typedef unsigned long ulong;
+
+/* The magic number of the GNU message catalog format.	*/
+#define MAGIC	      0x950412de
+#define MAGIC_SWAPPED 0xde120495
+
+/* Revision number of the currently used .mo (binary) file format.  */
+#define MO_REVISION_NUMBER 0
+
+
+/* Header for binary .mo file format.  */
+struct mo_file_header
+{
+  /* The magic number.	*/
+  u32 magic;
+  /* The revision number of the file format.  */
+  u32 revision;
+  /* The number of strings pairs.  */
+  u32 nstrings;
+  /* Offset of table with start offsets of original strings.  */
+  u32 orig_tab_offset;
+  /* Offset of table with start offsets of translation strings.  */
+  u32 trans_tab_offset;
+  /* Size of hashing table.  */
+  u32 hash_tab_size;
+  /* Offset of first hashing entry.  */
+  u32 hash_tab_offset;
+};
+
+struct string_desc
+{
+  /* Length of addressed string.  */
+  u32 length;
+  /* Offset of string in file.	*/
+  u32 offset;
+};
+
+
+
+struct loaded_domain
+{
+  char *data;
+  int must_swap;
+  u32 nstrings;
+  char *mapped;
+  struct string_desc *orig_tab;
+  struct string_desc *trans_tab;
+  u32 hash_size;
+  u32 *hash_tab;
+};
+
+
+static struct loaded_domain *the_domain;
+
+static __inline__ u32
+do_swap_u32( u32 i )
+{
+  return (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24);
+}
+
+#define SWAPIT(flag, data) ((flag) ? do_swap_u32(data) : (data) )
+
+
+/* We assume to have `unsigned long int' value with at least 32 bits.  */
+#define HASHWORDBITS 32
+
+/* The so called `hashpjw' function by P.J. Weinberger
+   [see Aho/Sethi/Ullman, COMPILERS: Principles, Techniques and Tools,
+   1986, 1987 Bell Telephone Laboratories, Inc.]  */
+
+static __inline__ ulong
+hash_string( const char *str_param )
+{
+    unsigned long int hval, g;
+    const char *str = str_param;
+
+    hval = 0;
+    while (*str != '\0')
+    {
+	hval <<= 4;
+	hval += (unsigned long int) *str++;
+	g = hval & ((unsigned long int) 0xf << (HASHWORDBITS - 4));
+	if (g != 0)
+	{
+	  hval ^= g >> (HASHWORDBITS - 8);
+	  hval ^= g;
+	}
+    }
+    return hval;
+}
+
+
+static struct loaded_domain *
+load_domain( const char *filename )
+{
+    FILE *fp;
+    size_t size;
+    struct stat st;
+    struct mo_file_header *data = NULL;
+    struct loaded_domain *domain = NULL;
+    size_t to_read;
+    char *read_ptr;
+
+    fp = fopen( filename, "rb" );
+    if( !fp )
+       return NULL; /* can't open the file */
+    /* we must know about the size of the file */
+    if( fstat( fileno(fp ), &st )
+	|| (size = (size_t)st.st_size) != st.st_size
+	|| size < sizeof (struct mo_file_header) ) {
+	fclose( fp );
+	return NULL;
+    }
+
+    data = malloc( size );
+    if( !data ) {
+	fclose( fp );
+	return NULL; /* out of memory */
+    }
+
+    to_read = size;
+    read_ptr = (char *) data;
+    do {
+	long int nb = fread( read_ptr, 1, to_read, fp );
+	if( nb < to_read ) {
+	    fclose (fp);
+	    free(data);
+	    return NULL; /* read error */
+	}
+	read_ptr += nb;
+	to_read -= nb;
+    } while( to_read > 0 );
+    fclose (fp);
+
+    /* Using the magic number we can test whether it really is a message
+     * catalog file.  */
+    if( data->magic != MAGIC && data->magic != MAGIC_SWAPPED ) {
+	/* The magic number is wrong: not a message catalog file.  */
+	free( data );
+	return NULL;
+    }
+
+    domain = calloc( 1, sizeof *domain );
+    if( !domain )  {
+	free( data );
+	return NULL;
+    }
+    domain->data = (char *) data;
+    domain->must_swap = data->magic != MAGIC;
+
+    /* Fill in the information about the available tables.  */
+    switch( SWAPIT(domain->must_swap, data->revision) ) {
+      case 0:
+	domain->nstrings = SWAPIT(domain->must_swap, data->nstrings);
+	domain->orig_tab = (struct string_desc *)
+	  ((char *) data + SWAPIT(domain->must_swap, data->orig_tab_offset));
+	domain->trans_tab = (struct string_desc *)
+	  ((char *) data + SWAPIT(domain->must_swap, data->trans_tab_offset));
+	domain->hash_size = SWAPIT(domain->must_swap, data->hash_tab_size);
+	domain->hash_tab = (u32 *)
+	  ((char *) data + SWAPIT(domain->must_swap, data->hash_tab_offset));
+      break;
+
+      default: /* This is an invalid revision.	*/
+	free( data );
+	free( domain );
+	return NULL;
+    }
+
+    /* allocate an array to keep track of code page mappings */
+    domain->mapped = calloc( 1, domain->nstrings );
+    if( !domain->mapped ) {
+	free( data );
+	free( domain );
+	return NULL;
+    }
+
+    return domain;
+}
+
+
+/****************
+ * Set the file used for translations.	Pass a NULL to disable
+ * translation.  A new filename may be set at anytime.
+ * WARNING: After changing the filename you shoudl not access any data
+ *	    retrieved by gettext().
+ */
+int
+set_gettext_file( const char *filename )
+{
+    struct loaded_domain *domain = NULL;
+
+    if( filename && *filename ) {
+	if( filename[0] == '/'
+	   #ifdef HAVE_DRIVE_LETTERS
+	    || ( isalpha(filename[0])
+		 && filename[1] == ':'
+		 && (filename[2] == '/' || filename[2] == '\\') )
+	   #endif
+	   ) {
+	    /* absolute path - use it as is */
+	    domain = load_domain( filename );
+	}
+	else { /* relative path - append ".mo" and get dir from the environment */
+	    char *buf = NULL;
+	    char *dir;
+
+	    dir = read_w32_registry_string( NULL,
+					    "Control Panel\\Mingw32\\NLS",
+					    "MODir" );
+	    if( dir && (buf=malloc(strlen(dir)+strlen(filename)+1+3+1)) ) {
+		strcpy(stpcpy(stpcpy(stpcpy( buf, dir),"\\"), filename),".mo");
+		domain = load_domain( buf );
+		free(buf);
+	    }
+	    free(dir);
+	}
+	if( !domain ) {
+	    return -1; }
+    }
+    if( the_domain ) {
+	free( the_domain->data );
+	free( the_domain->mapped );
+	free( the_domain );
+	the_domain = NULL;
+    }
+    the_domain = domain;
+    return NULL;
+}
+
+
+static const char*
+get_string( struct loaded_domain *domain, u32 idx )
+{
+    char *p = domain->data + SWAPIT(domain->must_swap,
+				    domain->trans_tab[idx].offset);
+
+	/* status of domain->mapped[idx] is ignored.
+	 * not sure about the consequences.
+	 * perhaps mapped can entirely be removed?
+	 */
+
+	/* we assume, strings are already correctly
+	 * encoded.
+	 */
+
+    return (const char*)p;
+}
+
+
+
+const char *
+gettext( const char *msgid )
+{
+    struct loaded_domain *domain;
+    size_t act = 0;
+    size_t top, bottom;
+
+    if( !(domain = the_domain) ) {
+	goto not_found;
+	}
+
+    /* Locate the MSGID and its translation.  */
+    if( domain->hash_size > 2 && domain->hash_tab ) {
+	/* Use the hashing table.  */
+	u32 len = strlen (msgid);
+	u32 hash_val = hash_string (msgid);
+	u32 idx = hash_val % domain->hash_size;
+	u32 incr = 1 + (hash_val % (domain->hash_size - 2));
+	u32 nstr = SWAPIT (domain->must_swap, domain->hash_tab[idx]);
+
+	if ( !nstr ) /* Hash table entry is empty.  */
+	    goto not_found;
+
+	if( SWAPIT(domain->must_swap,
+		    domain->orig_tab[nstr - 1].length) == len
+	    && !strcmp( msgid,
+		       domain->data + SWAPIT(domain->must_swap,
+				    domain->orig_tab[nstr - 1].offset)) )
+	    return get_string( domain, nstr - 1 );
+
+	for(;;) {
+	    if (idx >= domain->hash_size - incr)
+		idx -= domain->hash_size - incr;
+	    else
+		idx += incr;
+
+	    nstr = SWAPIT(domain->must_swap, domain->hash_tab[idx]);
+	    if( !nstr )
+		goto not_found; /* Hash table entry is empty.  */
+
+	    if ( SWAPIT(domain->must_swap,
+				domain->orig_tab[nstr - 1].length) == len
+		 && !strcmp (msgid,
+			 domain->data + SWAPIT(domain->must_swap,
+					   domain->orig_tab[nstr - 1].offset)))
+		return get_string( domain, nstr-1 );
+	}
+	/* NOTREACHED */
+    }
+
+    /* Now we try the default method:  binary search in the sorted
+       array of messages.  */
+    bottom = 0;
+    top = domain->nstrings;
+    while( bottom < top ) {
+	int cmp_val;
+
+	act = (bottom + top) / 2;
+	cmp_val = strcmp(msgid, domain->data
+			       + SWAPIT(domain->must_swap,
+					domain->orig_tab[act].offset));
+	if (cmp_val < 0)
+	    top = act;
+	else if (cmp_val > 0)
+	    bottom = act + 1;
+	else
+	    return get_string( domain, act );
+    }
+
+  not_found:
+    return msgid;
+}
+
+#if 0
+       unsigned int cp1, cp2;
+
+       cp1 = GetConsoleCP();
+       cp2 = GetConsoleOutputCP();
+
+       log_info("InputCP=%u  OutputCP=%u\n", cp1, cp2 );
+
+       if( !SetConsoleOutputCP( 1252 ) )
+	   log_info("SetConsoleOutputCP failed: %d\n", (int)GetLastError() );
+
+       cp1 = GetConsoleCP();
+       cp2 = GetConsoleOutputCP();
+       log_info("InputCP=%u  OutputCP=%u after switch1\n", cp1, cp2 );
+#endif
+
+#endif /* USE_SIMPLE_GETTEXT */