Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 446 insertions, 0 deletions

diff --git a/kviewshell/plugins/djvu/libdjvu/GURL.h b/kviewshell/plugins/djvu/libdjvu/GURL.h
new file mode 100644
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--- /dev/null
+++ b/kviewshell/plugins/djvu/libdjvu/GURL.h
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+//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, Version 2. 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
+//C- distributed by Lizardtech Software.  On July 19th 2002, Lizardtech 
+//C- Software authorized us to replace the original DjVu(r) Reference 
+//C- Library notice by the following text (see doc/lizard2002.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, Version 2. 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- +------------------------------------------------------------------
+// 
+// $Id: GURL.h,v 1.9 2003/11/07 22:08:21 leonb Exp $
+// $Name: release_3_5_15 $
+
+#ifndef _GURL_H_
+#define _GURL_H_
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#if NEED_GNUG_PRAGMAS
+# pragma interface
+#endif
+
+
+#include "GString.h"
+#include "Arrays.h"
+#include "GThreads.h"
+
+
+#ifdef HAVE_NAMESPACES
+namespace DJVU {
+# ifdef NOT_DEFINED // Just to fool emacs c++ mode
+}
+#endif
+#endif
+
+/** @name GURL.h
+    Files #"GURL.h"# and #"GURL.cpp"# contain the implementation of the
+    \Ref{GURL} class used to store URLs in a system independent format.
+    @memo System independent URL representation.
+    @author Andrei Erofeev <eaf@geocities.com>
+
+// From: Leon Bottou, 1/31/2002
+// This has been heavily changed by Lizardtech.
+// They decided to use URLs for everyting, including
+// the most basic file access.  The URL class now is a unholy 
+// mixture of code for syntactically parsing the urls (which is was)
+// and file status code (only for local file: urls).
+
+    @version #$Id: GURL.h,v 1.9 2003/11/07 22:08:21 leonb Exp $#
+*/
+
+//@{
+
+/** System independent URL representation.
+
+    This class is used in the library to store URLs in a system independent
+    format. The idea to use a general class to hold URL arose after we
+    realized, that DjVu had to be able to access files both from the WEB
+    and from the local disk. While it is strange to talk about system
+    independence of HTTP URLs, file names formats obviously differ from
+    platform to platform. They may contain forward slashes, backward slashes,
+    colons as separators, etc. There maybe more than one URL corresponding
+    to the same file name. Compare #file:/dir/file.djvu# and
+    #file://localhost/dir/file.djvu#.
+
+    To simplify a developer's life we have created this class, which contains
+    inside a canonical representation of URLs.
+
+    File URLs are converted to internal format with the help of \Ref{GOS} class.
+
+    All other URLs are modified to contain only forward slashes.
+*/
+
+class GURL
+{
+public:
+  class Filename;
+  class UTF8;
+  class Native;
+protected:
+      /** @name Constructors
+	  Accept the string URL, check that it starts from #file:/#
+	  or #http:/# and convert to internal system independent
+	  representation.
+      */
+      //@{
+      ///
+   GURL(const char * url_string);
+      //@}
+
+public:
+   GURL(void);
+
+   GURL(const GUTF8String & url_string);
+
+   GURL(const GNativeString & url_string);
+
+   GURL(const GUTF8String &xurl, const GURL &codebase);
+
+   GURL(const GNativeString &xurl, const GURL &codebase);
+
+      /// Copy constructor
+   GURL(const GURL & gurl);
+
+      /// The destructor
+   virtual ~GURL(void) {}
+
+private:
+      // The 'class_lock' should be locked whenever you're accessing
+      // url, or cgi_name_arr, or cgi_value_arr.
+   GCriticalSection	class_lock;
+protected:
+   GUTF8String	url;
+   DArray<GUTF8String>	cgi_name_arr, cgi_value_arr;
+   bool validurl;
+
+   void		init(const bool nothrow=false);
+   void		convert_slashes(void);
+   void		beautify_path(void);
+   static GUTF8String	beautify_path(GUTF8String url);
+
+   static GUTF8String	protocol(const GUTF8String& url);
+   void		parse_cgi_args(void);
+   void		store_cgi_args(void);
+public:
+   /// Test if the URL is valid. If invalid, reinitialize.
+   bool is_valid(void) const;     // const lies to the compiler because of dependency problems
+
+      /// Extracts the {\em protocol} part from the URL and returns it
+   GUTF8String	protocol(void) const;
+
+      /** Returns string after the first '\#' with decoded
+	  escape sequences. */
+   GUTF8String	hash_argument(void) const;
+
+      /** Inserts the #arg# after a separating hash into the URL.
+	  The function encodes any illegal character in #arg# using
+	  \Ref{GOS::encode_reserved}(). */
+   void		set_hash_argument(const GUTF8String &arg);
+
+      /** Returns the total number of CGI arguments in the URL.
+	  CGI arguments follow '#?#' sign and are separated by '#&#' signs */
+   int		cgi_arguments(void) const;
+
+      /** Returns the total number of DjVu-related CGI arguments (arguments
+	  following #DJVUOPTS# in the URL). */
+   int		djvu_cgi_arguments(void) const;
+
+      /** Returns that part of CGI argument number #num#, which is
+	  before the equal sign. */
+   GUTF8String	cgi_name(int num) const;
+
+      /** Returns that part of DjVu-related CGI argument number #num#,
+	  which is before the equal sign. */
+   GUTF8String	djvu_cgi_name(int num) const;
+
+      /** Returns that part of CGI argument number #num#, which is
+	  after the equal sign. */
+   GUTF8String	cgi_value(int num) const;
+   
+      /** Returns that part of DjVu-related CGI argument number #num#,
+	  which is after the equal sign. */
+   GUTF8String	djvu_cgi_value(int num) const;
+   
+      /** Returns array of all known CGI names (part of CGI argument before
+	  the equal sign) */
+   DArray<GUTF8String>cgi_names(void) const;
+
+      /** Returns array of names of DjVu-related CGI arguments (arguments
+	  following #DJVUOPTS# option. */
+   DArray<GUTF8String>djvu_cgi_names(void) const;
+   
+      /** Returns array of all known CGI names (part of CGI argument before
+	  the equal sign) */
+   DArray<GUTF8String>cgi_values(void) const;
+
+      /** Returns array of values of DjVu-related CGI arguments (arguments
+	  following #DJVUOPTS# option. */
+   DArray<GUTF8String>djvu_cgi_values(void) const;
+
+      /// Erases everything after the first '\#' or '?'
+   void		clear_all_arguments(void);
+
+      /// Erases everything after the first '\#'
+   void		clear_hash_argument(void);
+
+      /// Erases DjVu CGI arguments (following "#DJVUOPTS#")
+   void		clear_djvu_cgi_arguments(void);
+
+      /// Erases all CGI arguments (following the first '?')
+   void		clear_cgi_arguments(void);
+
+      /** Appends the specified CGI argument. Will insert "#DJVUOPTS#" if
+	  necessary */
+   void		add_djvu_cgi_argument(const GUTF8String &name, const char * value=0);
+   
+      /** Returns the URL corresponding to the directory containing
+	  the document with this URL. The function basically takes the
+	  URL and clears everything after the last slash. */
+   GURL		base(void) const;
+
+      /// Returns the aboslute URL without the host part.
+   GUTF8String pathname(void) const;
+
+      /** Returns the name part of this URL.
+	  For example, if the URL is #http://www.lizardtech.com/file%201.djvu# then
+          this function will return #file%201.djvu#. \Ref{fname}() will
+          return #file 1.djvu# at the same time. */
+   GUTF8String	name(void) const;
+
+      /** Returns the name part of this URL with escape sequences expanded.
+	  For example, if the URL is #http://www.lizardtech.com/file%201.djvu# then
+          this function will return #file 1.djvu#. \Ref{name}() will
+          return #file%201.djvu# at the same time. */
+   GUTF8String	fname(void) const;
+
+      /// Returns the extention part of name of document in this URL.
+   GUTF8String	extension(void) const;
+
+      /// Checks if this is an empty URL
+   bool		is_empty(void) const;
+
+      /// Checks if the URL is local (starts from #file:/#) or not
+   bool		is_local_file_url(void) const;
+
+      /** @name Concatenation operators
+	  Concatenate the GURL with the passed {\em name}. If the {\em name}
+	  is absolute (has non empty protocol prefix), we just return
+	  #GURL(name)#. Otherwise the #name# is appended to the GURL after a
+	  separating slash.
+      */
+      //@{
+      ///
+//   GURL		operator+(const GUTF8String &name) const;
+      //@}
+
+      /// Returns TRUE if #gurl1# and #gurl2# are the same
+   bool	operator==(const GURL & gurl2) const;
+
+      /// Returns TRUE if #gurl1# and #gurl2# are different
+   bool	operator!=(const GURL & gurl2) const;
+
+      /// Assignment operator
+   GURL &	operator=(const GURL & url);
+
+      /// Returns Internal URL representation
+   operator	const char*(void) const { return url; };
+
+  /** Returns a string representing the URL.  This function normally
+      returns a standard file URL as described in RFC 1738.  
+      Some versions of MSIE do not support this standard syntax.
+      A brain damaged MSIE compatible syntax is generated
+      when the optional argument #useragent# contains string #"MSIE"# or
+      #"Microsoft"#. */
+   GUTF8String get_string(const GUTF8String &useragent) const;
+
+   GUTF8String get_string(const bool nothrow=false) const;
+
+      /// Escape special characters
+   static GUTF8String encode_reserved(const GUTF8String &gs);
+
+   /** Decodes reserved characters from the URL.
+      See also: \Ref{encode_reserved}(). */
+   static GUTF8String decode_reserved(const GUTF8String &url);
+
+  /// Test if this url is an existing file, directory, or device.
+  bool is_local_path(void) const;
+
+  /// Test if this url is an existing file.
+  bool is_file(void) const;
+
+  /// Test if this url is an existing directory.
+  bool is_dir(void) const;
+
+  /// Follows symbolic links.
+  GURL follow_symlinks(void) const;
+
+  /// Creates the specified directory.
+  int mkdir(void) const;
+
+  /** Deletes file or directory.
+      Directories are not deleted unless the directory is empty.
+      Returns a negative number if an error occurs. */
+  int deletefile(void) const;
+
+  /** Recursively erases contents of directory. The directory
+      itself will not be removed. */
+  int cleardir(const int timeout=0) const;
+
+  /// Rename a file or directory.
+  int renameto(const GURL &newurl) const;
+
+  /// List the contents of a directory. 
+  GList<GURL> listdir(void) const;
+
+  /** Returns a filename for a URL. Argument #url# must be a legal file URL.
+      This function applies heuristic rules to convert the URL into a valid
+      file name. It is guaranteed that this function can properly parse all
+      URLs generated by #filename_to_url#. The heuristics also work better when
+      the file actually exists.  The empty string is returned when this
+      function cannot parse the URL or when the URL is not a file URL.
+        URL formats are as described in RFC 1738 plus the following alternative
+      formats for files on the local host:
+
+                file://<letter>:/<path>
+                file://<letter>|/<path>
+                file:/<path>
+
+      which are accepted because various browsers recognize them.*/
+   GUTF8String UTF8Filename(void) const;
+   /// Same but returns a native string.
+   GNativeString NativeFilename(void) const;
+
+      /** Hashing function.
+	  @return hash suitable for usage in \Ref{GMap} */
+   friend unsigned int	hash(const GURL & gurl);
+
+  /** Returns fully qualified file names.  This functions constructs the fully
+      qualified name of file or directory #filename#. When provided, the
+      optional argument #fromdirname# is used as the current directory when
+      interpreting relative specifications in #filename#.  Function
+      #expand_name# is very useful for logically concatenating file names.  It
+      knows which separators should be used for each operating system and it
+      knows which syntactical rules apply. */
+  static GUTF8String expand_name(const GUTF8String &filename, const char *fromdirname=0);
+};
+
+class GURL::UTF8 : public GURL
+{
+public:
+  UTF8(const GUTF8String &xurl);
+  UTF8(const GUTF8String &xurl, const GURL &codebase);
+};
+
+class GURL::Native : public GURL
+{
+public:
+  Native(const GNativeString &xurl);
+  Native(const GNativeString &xurl, const GURL &codebase);
+};
+
+class GURL::Filename : public GURL
+{
+public:
+  Filename(const GUTF8String &filename);
+  Filename(const GNativeString &filename);
+  class UTF8;
+  class Native;
+};
+
+class GURL::Filename::UTF8 : public GURL::Filename
+{
+public:
+  UTF8(const GUTF8String &filename);
+};
+
+class GURL::Filename::Native : public GURL::Filename
+{
+public:
+  Native(const GNativeString &filename);
+};
+
+
+inline bool
+GURL::operator!=(const GURL & gurl2) const
+{
+  return !(*this == gurl2);
+}
+
+inline GUTF8String
+GURL::protocol(void) const
+{
+   return protocol(get_string());
+}
+
+inline bool
+GURL::is_empty(void) const
+{
+   return !url.length()||!get_string().length();
+}
+
+// Test if the URL is valid.
+// If invalid, reinitialize and return the result.
+inline bool
+GURL::is_valid(void) const
+{
+  if(!validurl)
+    const_cast<GURL *>(this)->init(true);
+  return validurl;
+}
+
+
+
+//@}
+
+
+#ifdef HAVE_NAMESPACES
+}
+# ifndef NOT_USING_DJVU_NAMESPACE
+using namespace DJVU;
+# endif
+#endif
+#endif