Merge pull request #155 from mniip/regex

Remove regex dependency

6 files changed, 89 insertions, 49 deletions

diff --git a/src/Misc.cpp b/src/Misc.cpp
index 3128691..6b0c1d5 100644
--- a/src/Misc.cpp
+++ b/src/Misc.cpp
@@ -2,7 +2,6 @@
 #include <sstream>
 #include <stdlib.h>
 #include <string.h>
-#include <regex.h>
 #include <sys/types.h>
 #include <cmath>
 #include "Config.h"
@@ -173,17 +172,6 @@ void clean_text(char *text, int vwidth)
 	}
 }
 
-int sregexp(const char *str, char *pattern)
-{
-	int result;
-	regex_t patternc;
-	if (regcomp(&patternc, pattern,  0)!=0)
-		return 1;
-	result = regexec(&patternc, str, 0, NULL, 0);
-	regfree(&patternc);
-	return result;
-}
-
 void save_string(FILE *f, char *str)
 {
 	int li = strlen(str);
diff --git a/src/Misc.h b/src/Misc.h
index 1a43fe3..33601f6 100644
--- a/src/Misc.h
+++ b/src/Misc.h
@@ -62,8 +62,6 @@ void load_presets(void);
 
 void save_string(FILE *f, char *str);
 
-int sregexp(const char *str, char *pattern);
-
 int load_string(FILE *f, char *str, int max);
 
 void strcaturl(char *dst, char *src);
diff --git a/src/graphics/Renderer.cpp b/src/graphics/Renderer.cpp
index 833cec2..28e4d9e 100644
--- a/src/graphics/Renderer.cpp
+++ b/src/graphics/Renderer.cpp
@@ -912,7 +912,7 @@ void Renderer::DrawWalls()
 
 void Renderer::DrawSigns()
 {
-	int i, j, x, y, w, h, dx, dy,mx,my,b=1,bq;
+	int i, j, x, y, w, h, dx, dy,mx,my,b=1,bq,match;
 	std::vector<sign> signs = sim->signs;
 #ifdef OGLR
 	GLint prevFbo;
@@ -923,14 +923,30 @@ void Renderer::DrawSigns()
 	for (i=0; i < signs.size(); i++)
 		if (signs[i].text.length())
 		{
-			std::string text = sim->signs[i].getText(sim);
-			sim->signs[i].pos(text, x, y, w, h);
+			std::string text = signs[i].getText(sim);
+			const char* str = signs[i].text.c_str();
+			signs[i].pos(text, x, y, w, h);
 			clearrect(x, y, w+1, h);
 			drawrect(x, y, w+1, h, 192, 192, 192, 255);
-			if (sregexp(signs[i].text.c_str(), "^{[ct]:[0-9]*|.*}$"))
-				drawtext(x+3, y+3, text, 255, 255, 255, 255);
-			else
+			match=0;
+			// check if it's a link sign
+			if (str[0]=='{' && (str[1]=='c' || str[1]=='t') && str[2]==':' && str[3]>='0' && str[3]<='9')
+			{
+				const char* p=str+4;
+				while (*p>='0' && *p<='9')
+					p++;
+				if (*p=='|')
+				{
+					while (*p)
+						p++;
+					if (p[-1]=='}')
+						match=1;
+				}
+			}
+			if (match)
 				drawtext(x+3, y+3, text, 0, 191, 255, 255);
+			else
+				drawtext(x+3, y+3, text, 255, 255, 255, 255);
 				
 			x = signs[i].x;
 			y = signs[i].y;
diff --git a/src/gui/game/GameController.cpp b/src/gui/game/GameController.cpp
index 8b58b48..c514d3e 100644
--- a/src/gui/game/GameController.cpp
+++ b/src/gui/game/GameController.cpp
@@ -571,19 +571,30 @@ bool GameController::MouseUp(int x, int y, unsigned button)
 				(*iter).pos((*iter).getText(sim), signx, signy, signw, signh);
 				if (x>=signx && x<=signx+signw && y>=signy && y<=signy+signh)
 				{
-					if (sregexp((*iter).text.c_str(), "^{[ct]:[0-9]*|.*}$")==0)
+					int match=0;
+					const char* str=(*iter).text.c_str();
+					const char* e;
+					if (str[0]=='{' && (str[1]=='c' || str[1]=='t') && str[2]==':' && str[3]>='0' && str[3]<='9')
+					{
+						const char* p=str+4;
+						while (*p>='0' && *p<='9')
+							p++;
+						e=p;
+						if (*p=='|')
+						{
+							while (*p)
+								p++;
+							if (p[-1]=='}')
+							{
+								match=1;
+							}
+						}
+					}
+					if (match)
 					{
-						const char * signText = (*iter).text.c_str();
 						char buff[256];
-						int sldr;
-
-						memset(buff, 0, sizeof(buff));
-
-						for (sldr=3; signText[sldr] != '|'; sldr++)
-							buff[sldr-3] = signText[sldr];
-
-						buff[sldr-3] = '\0';
-
+						strcpy(buff, str+3);
+						buff[e-str-3]=0;
 						int tempSaveID = format::StringToNumber<int>(std::string(buff));
 						if (tempSaveID)
 						{
diff --git a/src/gui/game/SignTool.cpp b/src/gui/game/SignTool.cpp
index 87ed59e..a71f8e2 100644
--- a/src/gui/game/SignTool.cpp
+++ b/src/gui/game/SignTool.cpp
@@ -177,16 +177,30 @@ void SignWindow::DoDraw()
 	for(std::vector<sign>::iterator iter = sim->signs.begin(), end = sim->signs.end(); iter != end; ++iter)
 	{
 		sign & currentSign = *iter;
-		int x, y, w, h, dx, dy;
+		int x, y, w, h, dx, dy, match=0;
 		Graphics * g = ui::Engine::Ref().g;
 		std::string text = currentSign.getText(sim);
+		const char* str = currentSign.text.c_str();
 		currentSign.pos(text, x, y, w, h);
 		g->clearrect(x, y, w+1, h);
 		g->drawrect(x, y, w+1, h, 192, 192, 192, 255);
-		if (sregexp(currentSign.text.c_str(), "^{[ct]:[0-9]*|.*}$"))
-			g->drawtext(x+3, y+3, text, 255, 255, 255, 255);
-		else
+		if (str[0]=='{' && (str[1]=='c' || str[1]=='t') && str[2]==':' && str[3]>='0' && str[3]<='9')
+		{
+			const char* p=str+4;
+			while (*p>='0' && *p<='9')
+				p++;
+			if (*p=='|')
+			{
+				while (*p)
+					p++;
+				if (p[-1]=='}')
+					match=1;
+			}
+		}
+		if (match)
 			g->drawtext(x+3, y+3, text, 0, 191, 255, 255);
+		else
+			g->drawtext(x+3, y+3, text, 255, 255, 255, 255);
 
 		x = currentSign.x;
 		y = currentSign.y;
diff --git a/src/simulation/Sign.cpp b/src/simulation/Sign.cpp
index 7ba94af..f6b8420 100644
--- a/src/simulation/Sign.cpp
+++ b/src/simulation/Sign.cpp
@@ -31,25 +31,38 @@ std::string sign::getText(Simulation *sim)
 		else
 			sprintf(buff, "Temp: 0.00");  //...temperature
 	}
-	else if (sregexp(signText, "^{[ct]:[0-9]*|.*}$")==0)
+	else
 	{
-		int sldr, startm;
-		memset(buff, 0, sizeof(buff));
-		for (sldr=3; signText[sldr-1] != '|'; sldr++)
-			startm = sldr + 1;
-		sldr = startm;
-		while (signText[sldr] != '}')
+		int match=0;
+		const char* r;
+		const char* e;
+		if (signText[0]=='{' && (signText[1]=='c' || signText[1]=='t') && signText[2]==':' && signText[3]>='0' && signText[3]<='9')
 		{
-			buff[sldr - startm] = signText[sldr];
-			sldr++;
+			const char* p=signText+4;
+			while (*p>='0' && *p<='9')
+				p++;
+			if (*p=='|')
+			{
+				r=p+1;
+				while (*p)
+					p++;
+				if (p[-1]=='}')
+				{
+					match=1;
+					e=p;
+				}
+			}
 		}
-	}
-	else
-	{
-		sprintf(buff, "%s", signText);
+		if (match)
+		{
+			strcpy(buff, r);
+			buff[e-r-1]=0;
+		}
+		else
+			strcpy(buff, signText);
 	}
 
-	return std::string(buff,256);
+	return std::string(buff);
 }
 
 void sign::pos(std::string signText, int & x0, int & y0, int & w, int & h)