Added OpenALPR library

src/openalpr/TRexpp.h

@@ -0,0 +1,75 @@
+#ifndef _TREXPP_H_
+#define _TREXPP_H_
+/***************************************************************
+	T-Rex a tiny regular expression library
+
+	Copyright (C) 2003-2004 Alberto Demichelis
+
+	This software is provided 'as-is', without any express 
+	or implied warranty. In no event will the authors be held 
+	liable for any damages arising from the use of this software.
+
+	Permission is granted to anyone to use this software for 
+	any purpose, including commercial applications, and to alter
+	it and redistribute it freely, subject to the following restrictions:
+
+		1. The origin of this software must not be misrepresented;
+		you must not claim that you wrote the original software.
+		If you use this software in a product, an acknowledgment
+		in the product documentation would be appreciated but
+		is not required.
+
+		2. Altered source versions must be plainly marked as such,
+		and must not be misrepresented as being the original software.
+
+		3. This notice may not be removed or altered from any
+		source distribution.
+
+****************************************************************/
+
+extern "C" {
+#include "trex.h"
+}
+
+struct TRexParseException{TRexParseException(const TRexChar *c):desc(c){}const TRexChar *desc;};
+
+class TRexpp {
+public:
+	TRexpp() { _exp = (TRex *)0; }
+	~TRexpp() { CleanUp(); }
+	// compiles a regular expression
+	void Compile(const TRexChar *pattern) { 
+		const TRexChar *error;
+		CleanUp();
+		if(!(_exp = trex_compile(pattern,&error)))
+			throw TRexParseException(error);
+	}
+	// return true if the given text match the expression
+	bool Match(const TRexChar* text) { 
+		return _exp?(trex_match(_exp,text) != 0):false; 
+	}
+	// Searches for the first match of the expression in a zero terminated string
+	bool Search(const TRexChar* text, const TRexChar** out_begin, const TRexChar** out_end) { 
+		return _exp?(trex_search(_exp,text,out_begin,out_end) != 0):false; 
+	}
+	// Searches for the first match of the expression in a string sarting at text_begin and ending at text_end
+	bool SearchRange(const TRexChar* text_begin,const TRexChar* text_end,const TRexChar** out_begin, const TRexChar** out_end) { 
+		return _exp?(trex_searchrange(_exp,text_begin,text_end,out_begin,out_end) != 0):false; 
+	}
+	bool GetSubExp(int n, const TRexChar** out_begin, int *out_len)
+	{
+		TRexMatch match;
+		TRexBool res = _exp?(trex_getsubexp(_exp,n,&match)):TRex_False; 
+		if(res) {
+			*out_begin = match.begin;
+			*out_len = match.len;
+			return true;
+		}
+		return false;
+	}
+	int GetSubExpCount() { return _exp?trex_getsubexpcount(_exp):0; }
+private:
+	void CleanUp() { if(_exp) trex_free(_exp); _exp = (TRex *)0; }
+	TRex *_exp;
+};
+#endif //_TREXPP_H_