initial version ( megaglest 3.2.3-beta3 )

source/shared_lib/sources/util/util.cpp

@@ -0,0 +1,170 @@
+// ==============================================================
+//	This file is part of Glest Shared Library (www.glest.org)
+//
+//	Copyright (C) 2001-2008 Marti<74>o Figueroa
+//
+//	You can redistribute this code and/or modify it under 
+//	the terms of the GNU General Public License as published 
+//	by the Free Software Foundation; either version 2 of the 
+//	License, or (at your option) any later version
+// ==============================================================
+
+#include "util.h"
+
+#include <ctime>
+#include <cassert>
+#include <stdexcept>
+#include <cstring>
+#include <cstdio>
+
+#include "leak_dumper.h"
+
+using namespace std;
+
+namespace Shared{ namespace Util{
+
+string lastDir(const string &s){
+	size_t i= s.find_last_of('/');
+	size_t j= s.find_last_of('\\');
+	size_t pos;
+
+	if(i==string::npos){
+		pos= j;
+	}
+	else if(j==string::npos){
+		pos= i;
+	}
+	else{
+		pos= i<j? j: i;
+	}
+
+	if (pos==string::npos){ 
+		throw runtime_error(string(__FILE__)+" lastDir - i==string::npos");
+	}
+
+	return (s.substr(pos+1, s.length()));
+}
+
+string lastFile(const string &s){
+	return lastDir(s);
+}
+
+string cutLastFile(const string &s){
+	size_t i= s.find_last_of('/');
+	size_t j= s.find_last_of('\\');
+	size_t pos;
+
+	if(i==string::npos){
+		pos= j;
+	}
+	else if(j==string::npos){
+		pos= i;
+	}
+	else{
+		pos= i<j? j: i;
+	}
+
+	if (pos==string::npos){
+		throw runtime_error(string(__FILE__)+"cutLastFile - i==string::npos");
+	}
+
+	return (s.substr(0, pos));
+}
+
+string cutLastExt(const string &s){
+     size_t i= s.find_last_of('.');
+
+	 if (i==string::npos){
+          throw runtime_error(string(__FILE__)+"cutLastExt - i==string::npos");
+	 }
+
+     return (s.substr(0, i));
+}
+
+string ext(const string &s){
+     size_t i;
+     
+     i=s.find_last_of('.')+1;
+
+	 if (i==string::npos){
+          throw runtime_error(string(__FILE__)+"cutLastExt - i==string::npos");
+	 }
+
+     return (s.substr(i, s.size()-i));
+}
+
+string replaceBy(const string &s, char c1, char c2){
+	string rs= s;
+	
+	for(size_t i=0; i<s.size(); ++i){
+		if (rs[i]==c1){
+			rs[i]=c2;
+		}
+	}
+
+	return rs;
+}
+
+string toLower(const string &s){
+	string rs= s;
+	
+	for(size_t i=0; i<s.size(); ++i){
+		rs[i]= tolower(s[i]);
+	}
+
+	return rs;
+}
+
+void copyStringToBuffer(char *buffer, int bufferSize, const string& s){
+	strncpy(buffer, s.c_str(), bufferSize-1);
+	buffer[bufferSize-1]= '\0';
+}
+
+// ==================== numeric fcs ====================
+
+float saturate(float value){
+	if (value<0.f){
+        return 0.f;
+	}
+	if (value>1.f){
+        return 1.f;
+	}
+    return value;
+}
+
+int clamp(int value, int min, int max){
+	if (value<min){
+        return min;
+	}
+	if (value>max){
+        return max;
+	}
+    return value;
+}
+
+float clamp(float value, float min, float max){
+	if (value<min){
+        return min;
+	}
+	if (value>max){
+        return max;
+	}
+    return value;
+}
+
+int round(float f){
+     return (int) f;
+}
+
+// ==================== misc ====================
+
+bool fileExists(const string &path){
+	FILE* file= fopen(path.c_str(), "rb");
+	if(file!=NULL){
+		fclose(file);
+		return true;
+	}
+	return false;
+}
+
+}}//end namespace