Merging r5975 through r6036 from trunk to ogl-es branch.

GLES drivers adapted, but only did make compile-tests.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6038 dfc29bdd-3216-0410-991c-e03cc46cb475

include/coreutil.h

@@ -0,0 +1,205 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#ifndef __IRR_CORE_UTIL_H_INCLUDED__
+#define __IRR_CORE_UTIL_H_INCLUDED__
+
+#include "irrString.h"
+#include "path.h"
+
+namespace irr
+{
+namespace core
+{
+
+/*! \file coreutil.h
+	\brief File containing useful basic utility functions
+*/
+
+// ----------- some basic quite often used string functions -----------------
+
+//! search if a filename has a proper extension
+inline s32 isFileExtension (const io::path& filename, const io::path& ext0,
+				const io::path& ext1, const io::path& ext2)
+{
+	s32 extPos = filename.findLast ( '.' );
+	if ( extPos < 0 )
+		return 0;
+
+	extPos += 1;
+	if ( filename.equals_substring_ignore_case ( ext0, extPos ) )
+		return 1;
+	if ( filename.equals_substring_ignore_case ( ext1, extPos ) )
+		return 2;
+	if ( filename.equals_substring_ignore_case ( ext2, extPos ) )
+		return 3;
+	return 0;
+}
+
+//! search if a filename has a proper extension
+inline bool hasFileExtension(const io::path& filename, const io::path& ext0,
+				const io::path& ext1 = "", const io::path& ext2 = "")
+{
+	return isFileExtension ( filename, ext0, ext1, ext2 ) > 0;
+}
+
+//! cut the filename extension from a source file path and store it in a dest file path
+inline io::path& cutFilenameExtension ( io::path &dest, const io::path &source )
+{
+	s32 endPos = source.findLast ( '.' );
+	dest = source.subString ( 0, endPos < 0 ? source.size () : endPos );
+	return dest;
+}
+
+//! get the filename extension from a file path
+inline io::path& getFileNameExtension ( io::path &dest, const io::path &source )
+{
+	s32 endPos = source.findLast ( '.' );
+	if ( endPos < 0 )
+		dest = "";
+	else
+		dest = source.subString ( endPos, source.size () );
+	return dest;
+}
+
+//! delete path from filename
+inline io::path& deletePathFromFilename(io::path& filename)
+{
+	// delete path from filename
+	const fschar_t* s = filename.c_str();
+	const fschar_t* p = s + filename.size();
+
+	// search for path separator or beginning
+	while ( *p != '/' && *p != '\\' && p != s )
+		p--;
+
+	if ( p != s )
+	{
+		++p;
+		filename = p;
+	}
+	return filename;
+}
+
+//! trim paths
+inline io::path& deletePathFromPath(io::path& filename, s32 pathCount)
+{
+	// delete path from filename
+	s32 i = filename.size();
+
+	// search for path separator or beginning
+	while ( i>=0 )
+	{
+		if ( filename[i] == '/' || filename[i] == '\\' )
+		{
+			if ( --pathCount <= 0 )
+				break;
+		}
+		--i;
+	}
+
+	if ( i>0 )
+	{
+		filename [ i + 1 ] = 0;
+		filename.validate();
+	}
+	else
+		filename="";
+	return filename;
+}
+
+//! looks if file is in the same directory of path. returns offset of directory.
+//! 0 means in same directory. 1 means file is direct child of path
+inline s32 isInSameDirectory ( const io::path& path, const io::path& file )
+{
+	if ( path.size() && !path.equalsn ( file, path.size() ) )
+		return -1;
+
+	s32 subA = 0;
+	s32 subB = 0;
+	s32 pos = 0;
+	while ( (pos = path.findNext ( '/', pos )) >= 0 )
+	{
+		subA += 1;
+		pos += 1;
+	}
+
+	pos = 0;
+	while ( (pos = file.findNext ( '/', pos )) >= 0 )
+	{
+		subB += 1;
+		pos += 1;
+	}
+
+	return subB - subA;
+}
+
+//! splits a path into components
+static inline void splitFilename(const io::path &name, io::path* path=0,
+		io::path* filename=0, io::path* extension=0, bool make_lower=false)
+{
+	s32 i = name.size();
+	s32 extpos = i;
+
+	// search for path separator or beginning
+	while ( i >= 0 )
+	{
+		if ( name[i] == '.' )
+		{
+			extpos = i;
+			if ( extension )
+				*extension = name.subString ( extpos + 1, name.size() - (extpos + 1), make_lower );
+		}
+		else
+		if ( name[i] == '/' || name[i] == '\\' )
+		{
+			if ( filename )
+				*filename = name.subString ( i + 1, extpos - (i + 1), make_lower );
+			if ( path )
+			{
+				*path = name.subString ( 0, i + 1, make_lower );
+				path->replace ( '\\', '/' );
+			}
+			return;
+		}
+		i -= 1;
+	}
+	if ( filename )
+		*filename = name.subString ( 0, extpos, make_lower );
+}
+
+//! create a filename from components
+static inline io::path mergeFilename(const io::path& path, const io::path& filename, const io::path& extension = "")
+{
+	io::path result(path);
+
+	if ( !result.empty() )
+	{
+		fschar_t last = result.lastChar();
+		if ( last != _IRR_TEXT('/') && last != _IRR_TEXT('\\') )
+			result += _IRR_TEXT('/');
+	}
+	if ( !filename.empty() )
+		result += filename;
+	if ( !extension.empty() )
+	{
+		if ( !result.empty() && extension[0] != _IRR_TEXT('.') )
+			result += _IRR_TEXT('.');
+		result += extension;
+	}
+
+	return result;
+}
+
+
+//! some standard function ( to remove dependencies )
+inline s32 isdigit(s32 c) { return c >= '0' && c <= '9'; }
+inline s32 isspace(s32 c) { return c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v'; }
+inline s32 isupper(s32 c) { return c >= 'A' && c <= 'Z'; }
+
+
+} // end namespace core
+} // end namespace irr
+
+#endif