243 lines
7.4 KiB
C++
243 lines
7.4 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2015-2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file 3d_resolver.h
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* provides an extensible class to resolve 3D model paths.
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* Derived from 3d_filename_resolver.h,cpp and modified for
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* use in stand-alone utilities.
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*/
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#ifndef RESOLVER_3D_H
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#define RESOLVER_3D_H
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#include <list>
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#include <map>
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#include <vector>
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#include <wx/string.h>
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namespace S3D
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{
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struct rsort_wxString
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{
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bool operator() (const wxString& strA, const wxString& strB ) const
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{
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// sort a wxString using the reverse character order; for 3d model
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// filenames this will typically be a much faster operation than
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// a normal alphabetic sort
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wxString::const_reverse_iterator sA = strA.rbegin();
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wxString::const_reverse_iterator eA = strA.rend();
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wxString::const_reverse_iterator sB = strB.rbegin();
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wxString::const_reverse_iterator eB = strB.rend();
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if( strA.empty() )
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{
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if( strB.empty() )
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return false;
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// note: this rule implies that a null string is first in the sort order
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return true;
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}
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if( strB.empty() )
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return false;
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while( sA != eA && sB != eB )
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{
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if( (*sA) == (*sB) )
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{
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++sA;
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++sB;
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continue;
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}
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if( (*sA) < (*sB) )
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return true;
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else
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return false;
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}
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if( sB == eB )
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return false;
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return true;
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}
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};
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}; // end NAMESPACE
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class KICADPCB;
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struct SEARCH_PATH
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{
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wxString m_Alias; // alias to the base path
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wxString m_Pathvar; // base path as stored in the config file
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wxString m_Pathexp; // expanded base path
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wxString m_Description; // description of the aliased path
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};
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class S3D_RESOLVER
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{
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private:
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wxString m_ConfigDir; // 3D configuration directory
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std::list< SEARCH_PATH > m_Paths; // list of base paths to search from
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// mapping of (short) file names to resolved names
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std::map< wxString, wxString, S3D::rsort_wxString > m_NameMap;
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int m_errflags;
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wxString m_curProjDir;
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// environment variables
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std::map< wxString, wxString > m_EnvVars;
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/**
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* Function createPathList
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* builds the path list using available information such as
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* KISYS3DMOD and the 3d_path_list configuration file. Invalid
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* paths are silently discarded and removed from the configuration
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* file.
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*
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* @return true if at least one valid path was found
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*/
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bool createPathList( void );
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/**
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* Function addPath
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* checks that a path is valid and adds it to the search list
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*
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* @param aPath is the alias set to be checked and added
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* @return true if aPath is valid
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*/
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bool addPath( const SEARCH_PATH& aPath );
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/**
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* Function readPathList
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* reads a list of path names from a configuration file
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*
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* @return true if a file was found and contained at least
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* one valid path
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*/
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bool readPathList( void );
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/**
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* Function writePathList
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* writes the current path list to a configuration file
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*
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* @return true if the path list was not empty and was
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* successfully written to the configuration file
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*/
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bool writePathList( void );
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/**
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* Function checkEnvVarPath
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* checks the ${ENV_VAR} component of a path and adds
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* it to the resolver's path list if it is not yet in
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* the list
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*/
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void checkEnvVarPath( const wxString& aPath );
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wxString expandVars( const wxString& aPath );
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public:
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S3D_RESOLVER();
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/**
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* Function Set3DConfigDir
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* sets the user's configuration directory
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* for 3D models.
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*
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* @param aConfigDir
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* @return true if the call succeeds (directory exists)
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*/
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bool Set3DConfigDir( const wxString& aConfigDir );
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/**
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* Function SetProjectDir
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* sets the current KiCad project directory as the first
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* entry in the model path list
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*
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* @param aProjDir is the current project directory
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* @param flgChanged, if specified, is set to true if the directory actually changed
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* @return true if the call succeeds
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*/
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bool SetProjectDir( const wxString& aProjDir, bool* flgChanged = NULL );
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wxString GetProjectDir( void );
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/**
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* Function UpdatePathList
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* clears the current path list and substitutes the given path
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* list, updating the path configuration file on success.
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*/
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bool UpdatePathList( std::vector< SEARCH_PATH >& aPathList );
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/**
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* Function ResolvePath
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* determines the full path of the given file name. In the future
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* remote files may be supported, in which case it is best to
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* require a full URI in which case ResolvePath should check that
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* the URI conforms to RFC-2396 and related documents and copies
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* aFileName into aResolvedName if the URI is valid.
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*/
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wxString ResolvePath( const wxString& aFileName );
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/**
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* Function ShortenPath
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* produces a relative path based on the existing
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* search directories or returns the same path if
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* the path is not a superset of an existing search path.
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*
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* @param aFullPathName is an absolute path to shorten
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* @return the shortened path or aFullPathName
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*/
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wxString ShortenPath( const wxString& aFullPathName );
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/**
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* Function GetPaths
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* returns a pointer to the internal path list; the items in:load
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*
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* the list can be used to set up the list of search paths
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* available to a 3D file browser.
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*
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* @return pointer to the internal path list
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*/
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const std::list< SEARCH_PATH >* GetPaths( void );
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/**
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* Function SplitAlias
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* returns true if the given name contains an alias and
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* populates the string anAlias with the alias and aRelPath
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* with the relative path.
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*/
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bool SplitAlias( const wxString& aFileName, wxString& anAlias, wxString& aRelPath );
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/**
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* Function ValidateName
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* returns true if the given path is a valid aliased relative path.
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* If the path contains an alias then hasAlias is set true.
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*/
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bool ValidateFileName( const wxString& aFileName, bool& hasAlias );
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};
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#endif // RESOLVER_3D_H
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