From a313c5b95b95fcf5437da741673a48ea46162b58 Mon Sep 17 00:00:00 2001
From: David Anderson <dvander@alliedmods.net>
Date: Wed, 8 Sep 2004 21:13:04 +0000
Subject: [PATCH] updated strings

---
 dlls/engine/CString.h    | 301 ++++++++++++++++++++++++++++++++++++---
 dlls/engine/Makefile.pl  |   2 +-
 dlls/engine/engine.cpp   |  24 ++--
 dlls/engine/engine.h     |  20 +--
 dlls/engine/forwards.cpp |  14 +-
 dlls/engine/messages.h   |   2 +-
 6 files changed, 310 insertions(+), 53 deletions(-)

diff --git a/dlls/engine/CString.h b/dlls/engine/CString.h
index 12b5cbc4..0224646a 100755
--- a/dlls/engine/CString.h
+++ b/dlls/engine/CString.h
@@ -33,30 +33,67 @@
 #define _INCLUDE_CSTRING_H
 
 //by David "BAILOPAN" Anderson
-class CString
+class String
 {
 public:
-	CString() { v = NULL; mSize = 0; }
-	~CString() { if (v) delete [] v; }
+	String() 
+	{
+		v = NULL;
+		mSize = 0;
+		cSize = 0;
+		Grow(2);
+		assign("");
+	}
 
-	//added these for amxx
-	CString(const char *src) { v = NULL; mSize = 0; assign(src); }
-	CString(CString &src) { v = NULL; mSize = 0; assign(src.c_str()); }
+	~String()
+	{ 
+		if (v) 
+			delete [] v; 
+	}
+
+	String(const char *src) 
+	{
+		v = NULL; 
+		mSize = 0; 
+		cSize = 0; assign(src); 
+	}
+
+	String(String &src) 
+	{
+		v = NULL;
+		mSize = 0;
+		cSize = 0;
+		assign(src.c_str()); 
+	}
 
 	const char *c_str() { return v?v:""; }
 	const char *c_str() const { return v?v:""; }
 
 	void append(const char *t)
 	{
-		Grow(strlen(v) + strlen(t));
+		Grow(cSize + strlen(t));
 		strcat(v, t);
+		cSize = strlen(v);
 	}
 
-	void append(CString &d)
+	void append(const char c)
+	{
+		Grow(cSize + 2);
+		v[cSize] = c;
+		v[++cSize] = 0;
+	}
+
+	void append(String &d)
 	{
 		const char *t = d.c_str();
-		Grow(strlen(v) + strlen(t));
+		Grow(cSize + strlen(t));
 		strcat(v, t);
+		cSize = strlen(v);
+	}
+
+	void assign(const String &src)
+	{
+		assign(src.c_str());
 	}
 
 	void assign(const char *d)
@@ -64,20 +101,27 @@ public:
 		if (!d)
 		{
 			Grow(1);
+			cSize = 0;
 			strcpy(v, "");
 			return;
 		}
 		Grow(strlen(d));
 		if (v)
+		{
 			strcpy(v, d);
+			cSize = strlen(v);
+		} else {
+			cSize = 0;
+		}
 	}
 
 	void clear()
 	{
 		if (v)
-			delete [] v;
-		v = NULL;
-		mSize = 0;
+		{
+			v[0] = 0;
+			cSize = 0;
+		}
 	}
 
 	int compare (const char *d)
@@ -100,7 +144,7 @@ public:
 	//Added this for amxx inclusion
 	bool empty()
 	{
-		if (!v || !mSize)
+		if (!v || !cSize)
 			return true;
 
 		return false;
@@ -110,20 +154,239 @@ public:
 	{
 		if (!v)
 			return 0;
-		return strlen(v);
+		return cSize;
+	}
+
+	const char * _fread(FILE *fp)
+	{
+		Grow(512);
+		char * ret = fgets(v, 511, fp);
+		cSize = strlen(v);
+		return ret;
+	}
+
+	int find(const char c, int index = 0)
+	{
+		if (!v)
+			return npos;
+		if (index >= (int)cSize || index < 0)
+			return npos;
+		unsigned int i = 0;
+		for (i=index; i<cSize; i++)
+		{
+			if (v[i] == c)
+			{
+				return i;
+			}
+		}
+
+		return npos;
+	}
+
+	bool is_space(int c)
+	{
+		if (c == '\f' || c == '\n' ||
+			c == '\t' || c == '\r' ||
+			c == 'v' || c == ' ')
+		{
+			return true;
+		}
+
+		return false;
+	}
+	
+	void trim()
+	{
+		if (!v)
+			return;
+		unsigned int i = 0;
+		unsigned int j = 0;
+
+		if (cSize == 1)
+		{
+			if (is_space(v[i]))
+			{
+				clear();
+				return;
+			} 
+		}
+
+		unsigned char c0 = v[0];
+
+		if (is_space(c0))
+		{
+			for (i=0; i<cSize; i++)
+			{
+				if (!is_space(v[i]) || (is_space(v[i]) && ((unsigned char)i==cSize-1)))
+				{
+					erase(0, i);
+					break;
+				}
+			}
+		}
+
+		cSize = strlen(v);
+
+		if (cSize < 1)
+		{
+			return;
+		}
+
+		if (is_space(v[cSize-1]))
+		{
+			for (i=cSize-1; i>=0; i--)
+			{
+				if (!is_space(v[i])
+					|| (is_space(v[i]) && i==0))
+				{
+					erase(i+1, j);
+					break;
+				}
+				j++;
+			}
+		}
+
+		if (cSize == 1)
+		{
+			if (is_space(v[0]))
+			{
+				clear();
+				return;
+			}
+		}
+	}
+
+	String & erase(unsigned int start, int num = npos)
+	{
+		if (!v)
+			return (*this);
+		unsigned int i = 0;
+		//check for bounds
+		if (num == npos || start+num > cSize-num+1)
+			num = cSize - start;
+		//do the erasing
+		bool copyflag = false;
+		for (i=0; i<cSize; i++)
+		{
+			if (i>=start && i<start+num)
+			{
+				if (i+num < cSize)
+				{	
+					v[i] = v[i+num];
+				} else {
+					v[i] = 0;
+				}
+				copyflag = true;
+			} else if (copyflag) {
+				if (i+num < cSize)
+				{
+					v[i] = v[i+num];
+				} else {
+					v[i] = 0;
+				}
+			}
+		}
+		cSize -= num;
+		v[cSize] = 0;
+
+		return (*this);
+	}
+
+	String substr(unsigned int index, int num = npos)
+	{
+		String ns;
+
+		if (index >= cSize || !v)
+			return ns;
+		
+		if (num == npos)
+		{
+			num = cSize - index;
+		} else if (index+num >= cSize) {
+			num = cSize - index;
+		}
+
+		unsigned int i = 0, j=0;
+		char *s = new char[cSize+1];
+
+		for (i=index; i<index+num; i++)
+		{
+			s[j++] = v[i];
+		}
+		s[j] = 0;
+
+		ns.assign(s);
+
+		delete [] s;
+
+		return ns;
+	}
+
+	void toLower()
+	{
+		if (!v)
+			return;
+		unsigned int i = 0;
+		for (i=0; i<cSize; i++)
+		{
+			if (v[i] >= 65 && v[i] <= 90)
+				v[i] |= 32;
+		}
+	}
+
+	String & operator = (const String &src)
+	{
+		assign(src);
+		return *this;
+	}
+
+	String & operator = (const char *src)
+	{
+		assign(src);
+		return *this;
+
+	}
+
+	char operator [] (unsigned int index)
+	{
+		if (index > cSize)
+		{
+			return -1;
+		} else {
+			return v[index];
+		}
+	}
+
+	int at(int a)
+	{
+		if (a < 0 || a >= (int)cSize)
+			return -1;
+
+		return v[a];
+	}
+
+	bool at(int at, char c)
+	{
+		if (at < 0 || at >= (int)cSize)
+			return false;
+
+		v[at] = c;
+
+		return true;
 	}
 
 private:
-	void Grow(int d)
+	void Grow(unsigned int d)
 	{
 		if (d<1)
 			return;
 		if (d > mSize)
 		{
+			mSize = d + 16;	// allocate a buffer
 			char *t = new char[d+1];
 			if (v) {
 				strcpy(t, v);
-				t[strlen(v)] = 0;
+				t[cSize] = 0;
 				delete [] v;
 			}
 			v = t;
@@ -132,8 +395,10 @@ private:
 	}
 
 	char *v;
-	int mSize;
+	unsigned int mSize;
+	unsigned int cSize;
+public:
+	static const int npos = -1;
 };
 
 #endif //_INCLUDE_CSTRING_H
-
diff --git a/dlls/engine/Makefile.pl b/dlls/engine/Makefile.pl
index 241f8532..920bb626 100755
--- a/dlls/engine/Makefile.pl
+++ b/dlls/engine/Makefile.pl
@@ -173,6 +173,6 @@ for ($i=0; $i<=$#CPP_SOURCE_FILES; $i++)
 	}
 }
 
-$gcc = "$gccf $cflags -shared -ldl -lm @LINK -o $outdir/$bin";
+$gcc = "$gccf $cflags -shared -fPIC -ldl -lm -o $outdir/$bin @LINK";
 print "$gcc\n";
 `$gcc`;
diff --git a/dlls/engine/engine.cpp b/dlls/engine/engine.cpp
index 907c43e9..b32175ef 100755
--- a/dlls/engine/engine.cpp
+++ b/dlls/engine/engine.cpp
@@ -28,14 +28,15 @@ static cell AMX_NATIVE_CALL register_think(AMX *amx, cell *params)
 
 	EntClass *p = new EntClass;
 	const char *clsname = MF_GetAmxString(amx, params[1], 0, &len);
-	p->Class = new char[strlen(clsname)+1];
-	strcpy(p->Class, clsname);
+	p->Class.assign(clsname);
 
 	p->Forward = MF_RegisterSPForwardByName(amx, MF_GetAmxString(amx, params[2], 0, &len), FP_CELL, FP_DONE);
 
 	Thinks.push_back(p);
 
-	g_pFunctionTable->pfnThink=Think;
+	if (!g_pFunctionTable->pfnThink)
+		g_pFunctionTable->pfnThink=Think;
+
 	return p->Forward;
 }
 
@@ -50,7 +51,9 @@ static cell AMX_NATIVE_CALL register_impulse(AMX *amx, cell *params)
 
 	Impulses.push_back(p);
 
-	g_pFunctionTable->pfnCmdStart=CmdStart;
+	if (!g_pFunctionTable->pfnCmdStart)
+		g_pFunctionTable->pfnCmdStart=CmdStart;
+
 	return p->Forward;
 }
 
@@ -64,23 +67,22 @@ static cell AMX_NATIVE_CALL register_touch(AMX *amx, cell *params)
 	Touch *p = new Touch;
 
 	if (!strlen(Toucher) || strcmp(Toucher, "*")==0) {
-		p->Toucher = 0;
+		p->Toucher.assign("");
 	} else {
-		p->Toucher = new char[strlen(Toucher)+1];
-		strcpy(p->Toucher, Toucher);
+		p->Toucher.assign(Toucher);
 	}
 	if (!strlen(Touched) || strcmp(Touched, "*")==0) {
-		p->Touched = 0;
+		p->Touched.assign("");
 	} else {
-		p->Touched = new char[strlen(Touched)+1];
-		strcpy(p->Touched, Touched);
+		p->Touched.assign(Touched);
 	}
 
 	p->Forward = MF_RegisterSPForwardByName(amx, MF_GetAmxString(amx, params[3], 2, &len), FP_CELL, FP_CELL, FP_DONE);
 
 	Touches.push_back(p);
 
-	g_pFunctionTable->pfnTouch=pfnTouch;
+	if (!g_pFunctionTable->pfnTouch)
+		g_pFunctionTable->pfnTouch=pfnTouch;
 
 	return p->Forward;
 }
diff --git a/dlls/engine/engine.h b/dlls/engine/engine.h
index 40dcedb9..f8e71dbf 100755
--- a/dlls/engine/engine.h
+++ b/dlls/engine/engine.h
@@ -133,18 +133,10 @@ class Touch
 {
 public:
 	int Forward;
-	char *Toucher;
-	char *Touched;
+	String Toucher;
+	String Touched;
 	~Touch()
 	{
-		if (Toucher) {
-			delete [] Toucher;
-			Toucher = 0;
-		}
-		if (Touched) {
-			delete [] Touched;
-			Touched = 0;
-		}
 		if (Forward != -1)
 			MF_UnregisterSPForward(Forward);
 	}
@@ -154,13 +146,11 @@ class EntClass
 {
 public:
 	int Forward;
-	char *Class;
+	String Class;
 	~EntClass()
 	{
-		if (Class) {
-			delete [] Class;
-			Class = 0;
-		}
+		if (Forward != -1)
+			MF_UnregisterSPForward(Forward);
 	}
 };
 
diff --git a/dlls/engine/forwards.cpp b/dlls/engine/forwards.cpp
index f17b1851..cc3f9e31 100755
--- a/dlls/engine/forwards.cpp
+++ b/dlls/engine/forwards.cpp
@@ -229,31 +229,31 @@ void pfnTouch(edict_t *pToucher, edict_t *pTouched)
 	META_RES res=MRES_IGNORED;
 	for (i=0; i<Touches.size(); i++)
 	{
-		if (Touches[i]->Toucher == 0)
+		if (Touches[i]->Toucher.size() == 0)
 		{
-			if (Touches[i]->Touched == 0)
+			if (Touches[i]->Touched.size() == 0)
 			{
 				retVal = MF_ExecuteForward(Touches[i]->Forward, ENTINDEX(pToucher), ENTINDEX(pTouched));
 				if (retVal & 2/*PLUGIN_HANDLED_MAIN*/)
 					RETURN_META(MRES_SUPERCEDE);
 				else if (retVal)
 					res=MRES_SUPERCEDE;
-			} else if (fstrcmp(Touches[i]->Touched, ptdClass)) {
+			} else if (Touches[i]->Touched.compare(ptdClass)==0) {
 				retVal = MF_ExecuteForward(Touches[i]->Forward, ENTINDEX(pToucher), ENTINDEX(pTouched));
 				if (retVal & 2/*PLUGIN_HANDLED_MAIN*/)
 					RETURN_META(MRES_SUPERCEDE);
 				else if (retVal)
 					res=MRES_SUPERCEDE;
 			}
-		} else if (fstrcmp(Touches[i]->Toucher, ptrClass)) {
-			if (Touches[i]->Touched == 0)
+		} else if (Touches[i]->Toucher.compare(ptrClass)==0) {
+			if (Touches[i]->Touched.size() == 0)
 			{
 				retVal = MF_ExecuteForward(Touches[i]->Forward, ENTINDEX(pToucher), ENTINDEX(pTouched));
 				if (retVal & 2/*PLUGIN_HANDLED_MAIN*/)
 					RETURN_META(MRES_SUPERCEDE);
 				else if (retVal)
 					res=MRES_SUPERCEDE;
-			} else if (fstrcmp(Touches[i]->Touched, ptdClass)) {
+			} else if (Touches[i]->Touched.compare(ptdClass)==0) {
 				retVal = MF_ExecuteForward(Touches[i]->Forward, ENTINDEX(pToucher), ENTINDEX(pTouched));
 				if (retVal & 2/*PLUGIN_HANDLED_MAIN*/)
 					RETURN_META(MRES_SUPERCEDE);
@@ -285,7 +285,7 @@ void Think(edict_t *pent)
 	int retVal=0;
 	for (i=0; i<Thinks.size(); i++)
 	{
-		if (fstrcmp(cls, Thinks[i]->Class))
+		if (Thinks[i]->Class.compare(cls)==0)
 		{
 			retVal=MF_ExecuteForward(Thinks[i]->Forward, ENTINDEX(pent));
 			if (retVal & 2/*PLUGIN_HANDLED_MAIN*/)
diff --git a/dlls/engine/messages.h b/dlls/engine/messages.h
index ee5d6937..bbae64ee 100755
--- a/dlls/engine/messages.h
+++ b/dlls/engine/messages.h
@@ -36,7 +36,7 @@ public:
 
 	int type;
 	REAL fData;
-	CString cData;
+	String cData;
 	int iData;
 };