//C- -*- C++ -*-
//C- -------------------------------------------------------------------
//C- DjVuLibre-3.5
//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.
//C- Copyright (c) 2001 AT&T
//C-
//C- This software is subject to, and may be distributed under, the
//C- GNU General Public License, either Version 2 of the license,
//C- or (at your option) any later version. The license should have
//C- accompanied the software or you may obtain a copy of the license
//C- from the Free Software Foundation at http://www.fsf.org .
//C-
//C- This program is distributed in the hope that it will be useful,
//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//C- GNU General Public License for more details.
//C-
//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library from
//C- Lizardtech Software. Lizardtech Software has authorized us to
//C- replace the original DjVu(r) Reference Library notice by the following
//C- text (see doc/lizard2002.djvu and doc/lizardtech2007.djvu):
//C-
//C- ------------------------------------------------------------------
//C- | DjVu (r) Reference Library (v. 3.5)
//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
//C- | The DjVu Reference Library is protected by U.S. Pat. No.
//C- | 6,058,214 and patents pending.
//C- |
//C- | This software is subject to, and may be distributed under, the
//C- | GNU General Public License, either Version 2 of the license,
//C- | or (at your option) any later version. The license should have
//C- | accompanied the software or you may obtain a copy of the license
//C- | from the Free Software Foundation at http://www.fsf.org .
//C- |
//C- | The computer code originally released by LizardTech under this
//C- | license and unmodified by other parties is deemed "the LIZARDTECH
//C- | ORIGINAL CODE." Subject to any third party intellectual property
//C- | claims, LizardTech grants recipient a worldwide, royalty-free,
//C- | non-exclusive license to make, use, sell, or otherwise dispose of
//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the
//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU
//C- | General Public License. This grant only confers the right to
//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to
//C- | the extent such infringement is reasonably necessary to enable
//C- | recipient to make, have made, practice, sell, or otherwise dispose
//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to
//C- | any greater extent that may be necessary to utilize further
//C- | modifications or combinations.
//C- |
//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
//C- +------------------------------------------------------------------
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#if NEED_GNUG_PRAGMAS
# pragma implementation
#endif
// From: Leon Bottou, 1/31/2002
// All these I18N XML messages are Lizardtech innovations.
// For DjvuLibre, I changed the path extraction logic
// and added support for non I18N messages.
#include "DjVuMessageLite.h"
#include "GOS.h"
#include "XMLTags.h"
#include "ByteStream.h"
#include "GURL.h"
#include "debug.h"
#include <ctype.h>
#include <string.h>
#include <stddef.h>
#include <stdlib.h>
#ifdef _WIN32
#include <tchar.h>
#include <windows.h>
#include <winreg.h>
#endif
#ifdef UNIX
#include <unistd.h>
#include <pwd.h>
#include <sys/types.h>
#endif
#include <locale.h>
#ifdef HAVE_NAMESPACES
namespace DJVU {
# ifdef NOT_DEFINED // Just to fool emacs c++ mode
}
#endif
#endif
const DjVuMessageLite& (*DjVuMessageLite::create)(void) =
DjVuMessageLite::create_lite;
static const char *failed_to_parse_XML=
ERR_MSG("DjVuMessage.failed_to_parse_XML");
static const char *unrecognized=
ERR_MSG("DjVuMessage.Unrecognized");
static const char *uparameter=
ERR_MSG("DjVuMessage.Parameter");
#ifdef LIZARDTECH_1_800_NUMBER
static const char unrecognized_default[] =
"** Unrecognized DjVu Message: [Contact LizardTech at "
LIZARDTECH_1_800_NUMBER " \n"
"\t** Message name: %1!s!";
#else
static const char unrecognized_default[] =
"** Unrecognized DjVu Message:\n"
"\t** Message name: %1!s!";
#endif
static const char uparameter_default[] =
"\t Parameter: %1!s!";
static const char failed_to_parse_XML_default[]=
"Failed to parse XML message file: 	'%1!s!'.";
static const char namestring[]="name";
static const char valuestring[]="value";
static const char numberstring[]="number";
static const char bodystring[]="BODY";
static const char messagestring[]="MESSAGE";
GPList<ByteStream> &
DjVuMessageLite::getByteStream(void)
{
static GPList<ByteStream> gbs;
return gbs;
}
GP<DjVuMessageLite> &
DjVuMessageLite::getDjVuMessageLite(void)
{
static GP<DjVuMessageLite> message;
return message;
}
void
DjVuMessageLite::AddByteStreamLater(const GP<ByteStream> &bs)
{
getByteStream().append(bs);
}
// There is only object of class DjVuMessage in a program, and here it is:
//DjVuMessage DjVuMsg;
const DjVuMessageLite &
DjVuMessageLite::create_lite(void)
{
GP<DjVuMessageLite> &static_message=getDjVuMessageLite();
if(!static_message)
{
static_message=new DjVuMessageLite;
}
DjVuMessageLite &m=*static_message;
GPList<ByteStream> &bs = getByteStream();
for(GPosition pos;(pos=bs);bs.del(pos))
{
m.AddByteStream(bs[pos]);
}
return m;
}
// Constructor
DjVuMessageLite::DjVuMessageLite( void ) {}
// Destructor
DjVuMessageLite::~DjVuMessageLite( ) {}
void
DjVuMessageLite::perror( const GUTF8String & MessageList )
{
DjVuPrintErrorUTF8("%s\n",(const char *)DjVuMessageLite::LookUpUTF8(MessageList));
}
// Expands message lists by looking up the message IDs and inserting
// arguments into the retrieved messages.
// N.B. The resulting string may be encoded in UTF-8 format (ISO 10646-1 Annex R)
// and SHOULD NOT BE ASSUMED TO BE ASCII.
GUTF8String
DjVuMessageLite::LookUp( const GUTF8String & MessageList ) const
{
// DEBUG_MSG( "========== DjVuMessageLite::LookUp ==========\n" <<
// MessageList <<
// "\n========== DjVuMessageLite::LookUp ==========\n" );
GUTF8String result; // Result string; begins empty
if(errors.length())
{
const GUTF8String err1(errors);
(const_cast<GUTF8String &>(errors)).empty();
result=LookUp(err1)+"\n";
}
int start = 0; // Beginning of next message
int end = MessageList.length(); // End of the message string
// Isolate single messages and process them
while( start < end )
{
if( MessageList[start] == '\n' )
{
result += MessageList[start++]; // move the newline to the result
// and advance to the next message
}
else
{
// Find the end of the next message and process it
int next_ending = MessageList.search((unsigned long)'\n', start);
if( next_ending < 0 )
next_ending = end;
result += LookUpSingle( MessageList.substr(start, next_ending-start) );
// Advance to the next message
start = next_ending;
}
}
// All done
return result;
}
// Expands a single message and inserts the arguments. Single_Message
// contains no separators (newlines), but includes all the parameters
// separated by tabs.
GUTF8String
DjVuMessageLite::LookUpSingle( const GUTF8String &Single_Message ) const
{
#if HAS_CTRL_C_IN_ERR_MSG
if (Single_Message[0] != '\003')
return Single_Message;
#endif
// Isolate the message ID and get the corresponding message text
int ending_posn = Single_Message.contains("\t\v");
if( ending_posn < 0 )
ending_posn = Single_Message.length();
GUTF8String msg_text;
GUTF8String msg_number;
const GUTF8String message=Single_Message.substr(0,ending_posn);
LookUpID( message, msg_text, msg_number );
// Check whether we found anything
if( !msg_text.length())
{
if(message == unrecognized)
{
msg_text = unrecognized_default;
}else if(message == uparameter)
{
msg_text = uparameter_default;
}else if(message == failed_to_parse_XML)
{
msg_text = failed_to_parse_XML_default;
}else
{
return LookUpSingle(unrecognized + ("\t" + Single_Message));
}
}
// Insert the parameters (if any)
unsigned int param_num = 0;
while( (unsigned int)ending_posn < Single_Message.length() )
{
GUTF8String arg;
const int start_posn = ending_posn+1;
if(Single_Message[ending_posn] == '\v')
{
ending_posn=Single_Message.length();
arg=LookUpSingle(Single_Message.substr(start_posn,ending_posn));
}else
{
ending_posn = Single_Message.contains("\v\t",start_posn);
if( ending_posn < 0 )
ending_posn = Single_Message.length();
arg=Single_Message.substr(start_posn, ending_posn-start_posn);
}
InsertArg( msg_text, ++param_num, arg);
}
// Insert the message number
InsertArg( msg_text, 0, msg_number );
return msg_text;
}
// Looks up the msgID in the file of messages and returns a pointer to
// the beginning of the translated message, if found; and an empty string
// otherwise.
void
DjVuMessageLite::LookUpID( const GUTF8String &xmsgID,
GUTF8String &message_text,
GUTF8String &message_number ) const
{
if(!Map.isempty())
{
GUTF8String msgID = xmsgID;
#if HAS_CTRL_C_IN_ERR_MSG
int start = 0;
while (msgID[start] == '\003')
start ++;
if (start > 0)
msgID = msgID.substr(start, msgID.length() - start);
#endif
GPosition pos=Map.contains(msgID);
if(pos)
{
const GP<lt_XMLTags> tag=Map[pos];
GPosition valuepos=tag->get_args().contains(valuestring);
if(valuepos)
{
message_text=tag->get_args()[valuepos];
}else
{
const GUTF8String raw(tag->get_raw());
const int start_line=raw.search((unsigned long)'\n',0);
const int start_text=raw.nextNonSpace(0);
const int end_text=raw.firstEndSpace(0);
if(start_line<0 || start_text<0 || start_text < start_line)
{
message_text=raw.substr(0,end_text).fromEscaped();
}else
{
message_text=raw.substr(start_line+1,end_text-start_line-1).fromEscaped();
}
}
GPosition numberpos=tag->get_args().contains(numberstring);
if(numberpos)
{
message_number=tag->get_args()[numberpos];
}
}
}
}
// Insert a string into the message text. Will insert into any field
// description. Except for an ArgId of zero (message number), if the ArgId
// is not found, the routine adds a line with the parameter so information
// will not be lost.
void
DjVuMessageLite::InsertArg( GUTF8String &message,
const int ArgId, const GUTF8String &arg ) const
{
// argument target string
const GUTF8String target= "%"+GUTF8String(ArgId)+"!";
// location of target string
int format_start = message.search( (const char *)target );
if( format_start >= 0 )
{
do
{
const int n=format_start+target.length()+1;
const int format_end=message.search((unsigned long)'!',n);
if(format_end > format_start)
{
const int len=1+format_end-n;
if(len && isascii(message[n-1]))
{
GUTF8String narg;
GUTF8String format="%"+message.substr(n-1,len);
switch(format[len])
{
case 'd':
case 'i':
narg.format((const char *)format,arg.toInt());
break;
case 'u':
case 'o':
case 'x':
case 'X':
narg.format((const char *)format,(unsigned int)arg.toInt());
break;
case 'f':
case 'g':
case 'e':
{
int endpos;
narg.format((const char *)format, arg.toDouble(0,endpos));
if( endpos < 0 )
narg = arg;
}
break;
default:
narg.format((const char *)format,(const char *)arg);
break;
}
message = message.substr( 0, format_start )+narg
+message.substr( format_end+1, -1 );
}else
{
message = message.substr( 0, format_start )+arg
+message.substr( format_end+1, -1 );
}
}
format_start=message.search((const char*)target, format_start+arg.length());
} while(format_start >= 0);
}
else
{
// Not found, fake it
if( ArgId != 0 )
{
message += "\n"+LookUpSingle(uparameter+("\t"+arg));
}
}
}
// A C function to perform a message lookup. Arguments are a buffer to received the
// translated message, a buffer size (bytes), and a message_list. The translated
// result is returned in msg_buffer encoded in UTF-8. In case of error, msg_buffer is
// empty (i.e., msg_buffer[0] == '\0').
void
DjVuMessageLite_LookUp( char *msg_buffer, const unsigned int buffer_size, const char *message )
{
GUTF8String converted = DjVuMessageLite::LookUpUTF8( message );
if( converted.length() >= buffer_size )
msg_buffer[0] = '\0';
else
strcpy( msg_buffer, converted );
}
void
DjVuMessageLite::AddByteStream(const GP<ByteStream> &bs)
{
const GP<lt_XMLTags> gtags(lt_XMLTags::create(bs));
lt_XMLTags &tags=*gtags;
GPList<lt_XMLTags> Bodies=tags.get_Tags(bodystring);
if(! Bodies.isempty())
{
lt_XMLTags::get_Maps(messagestring,namestring,Bodies,Map);
}
}
#ifdef HAVE_NAMESPACES
}
# ifndef NOT_USING_DJVU_NAMESPACE
using namespace DJVU;
# endif
#endif
void
DjVuWriteError( const char *message )
{
G_TRY {
GP<ByteStream> errout = ByteStream::get_stderr();
if (errout)
{
const GUTF8String external = DjVuMessageLite::LookUpUTF8( message );
errout->writestring(external+"\n");
}
// Need to catch all exceptions because these might be
// called from an outer exception handler (with prejudice)
} G_CATCH_ALL { } G_ENDCATCH;
}
void
DjVuWriteMessage( const char *message )
{
G_TRY {
GP<ByteStream> strout = ByteStream::get_stdout();
if (strout)
{
const GUTF8String external = DjVuMessageLite::LookUpUTF8( message );
strout->writestring(external+"\n");
}
// Need to catch all exceptions because these might be
// called from an outer exception handler (with prejudice)
} G_CATCH_ALL { } G_ENDCATCH;
}