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coreutil.h

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00001 // Copyright (C) 2002-2010 Nikolaus Gebhardt
00002 // This file is part of the "Irrlicht Engine".
00003 // For conditions of distribution and use, see copyright notice in irrlicht.h
00004 
00005 #ifndef __IRR_CORE_UTIL_H_INCLUDED__
00006 #define __IRR_CORE_UTIL_H_INCLUDED__
00007 
00008 #include "irrString.h"
00009 #include "path.h"
00010 
00011 namespace irr
00012 {
00013 namespace core
00014 {
00015 
00020 // ----------- some basic quite often used string functions -----------------
00021 
00023 inline s32 isFileExtension (    const io::path& filename,
00024                                                                 const io::path& ext0,
00025                                                                 const io::path& ext1,
00026                                                                 const io::path& ext2)
00027 {
00028         s32 extPos = filename.findLast ( '.' );
00029         if ( extPos < 0 )
00030                 return 0;
00031 
00032         extPos += 1;
00033         if ( filename.equals_substring_ignore_case ( ext0, extPos ) ) return 1;
00034         if ( filename.equals_substring_ignore_case ( ext1, extPos ) ) return 2;
00035         if ( filename.equals_substring_ignore_case ( ext2, extPos ) ) return 3;
00036         return 0;
00037 }
00038 
00040 inline bool hasFileExtension (  const io::path& filename,
00041                                                                 const io::path& ext0,
00042                                                                 const io::path& ext1 = "",
00043                                                                 const io::path& ext2 = "")
00044 {
00045         return isFileExtension ( filename, ext0, ext1, ext2 ) > 0;
00046 }
00047 
00049 inline io::path& cutFilenameExtension ( io::path &dest, const io::path &source )
00050 {
00051         s32 endPos = source.findLast ( '.' );
00052         dest = source.subString ( 0, endPos < 0 ? source.size () : endPos );
00053         return dest;
00054 }
00055 
00057 inline io::path& getFileNameExtension ( io::path &dest, const io::path &source )
00058 {
00059         s32 endPos = source.findLast ( '.' );
00060         if ( endPos < 0 )
00061                 dest = "";
00062         else
00063                 dest = source.subString ( endPos, source.size () );
00064         return dest;
00065 }
00066 
00068 inline io::path& deletePathFromFilename(io::path& filename)
00069 {
00070         // delete path from filename
00071         const fschar_t* s = filename.c_str();
00072         const fschar_t* p = s + filename.size();
00073 
00074         // search for path separator or beginning
00075         while ( *p != '/' && *p != '\\' && p != s )
00076                 p--;
00077 
00078         if ( p != s )
00079         {
00080                 ++p;
00081                 filename = p;
00082         }
00083         return filename;
00084 }
00085 
00087 inline io::path& deletePathFromPath(io::path& filename, s32 pathCount)
00088 {
00089         // delete path from filename
00090         s32 i = filename.size();
00091 
00092         // search for path separator or beginning
00093         while ( i>=0 )
00094         {
00095                 if ( filename[i] == '/' || filename[i] == '\\' )
00096                 {
00097                         if ( --pathCount <= 0 )
00098                                 break;
00099                 }
00100                 --i;
00101         }
00102 
00103         if ( i>0 )
00104         {
00105                 filename [ i + 1 ] = 0;
00106                 filename.validate();
00107         }
00108         else
00109                 filename="";
00110         return filename;
00111 }
00112 
00115 inline s32 isInSameDirectory ( const io::path& path, const io::path& file )
00116 {
00117         s32 subA = 0;
00118         s32 subB = 0;
00119         s32 pos;
00120 
00121         if ( path.size() && !path.equalsn ( file, path.size() ) )
00122                 return -1;
00123 
00124         pos = 0;
00125         while ( (pos = path.findNext ( '/', pos )) >= 0 )
00126         {
00127                 subA += 1;
00128                 pos += 1;
00129         }
00130 
00131         pos = 0;
00132         while ( (pos = file.findNext ( '/', pos )) >= 0 )
00133         {
00134                 subB += 1;
00135                 pos += 1;
00136         }
00137 
00138         return subB - subA;
00139 }
00140 
00141 
00143 #undef isdigit
00144 #undef isspace
00145 #undef isupper
00146 inline s32 isdigit(s32 c) { return c >= '0' && c <= '9'; }
00147 inline s32 isspace(s32 c) { return c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v'; }
00148 inline s32 isupper(s32 c) { return c >= 'A' && c <= 'Z'; }
00149 
00150 
00151 } // end namespace core
00152 } // end namespace irr
00153 
00154 #endif
00155 

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The Irrlicht Engine Documentation © 2003-2010 by Nikolaus Gebhardt. Generated on Sun Oct 24 12:41:56 2010 by Doxygen (1.6.2)