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utils/tfstats/textfile.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:  Interface of CTextFile. 
+//
+// $Workfile:     $
+// $Date:         $
+//
+//------------------------------------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef TEXTFILE_H
+#define TEXTFILE_H
+#ifdef WIN32
+#pragma once
+#endif
+#include <stdio.h>
+#include <string.h>
+#include <string>
+#define BUF_SIZE 5000
+
+//------------------------------------------------------------------------------------------------------
+// Purpose:  CTextFile represents a configuration file.  The default delimiters 
+// are { } = \n \r \t ; " and space. Also C++ style comments are ignored by default.
+// CTextFile only supports reading, a 5000 character word /line buffer
+// and only supports one pushback
+//------------------------------------------------------------------------------------------------------
+class CTextFile
+{
+private:
+	std::string filename;
+	char wordBuf[BUF_SIZE];
+	char peekBuf[BUF_SIZE];
+	bool fWordPushed;
+	bool noComments;
+	FILE* theFile;
+
+	char* delims;
+	char* stringDelims;
+	char* normalDelims;
+	char* blockDelims;
+
+	char getNextNonWSChar();
+	bool isDelim(char c);
+	
+	const char* getToken(char* outputBuf);
+public: 
+	explicit CTextFile(const char* filename,bool eliminateComments=true){init(filename,eliminateComments);}
+	explicit CTextFile(const string& filename,bool eliminateComments=true){init(filename.c_str(),eliminateComments);}
+	void init(const char* filename,bool eliminateComments=true);
+	std::string& fileName(){return filename;}
+	
+	void discardBlock();
+	const char* readString();
+	const char* readString(char* buf);
+	int readInt();
+	unsigned long readULong();
+	const char* getToken();
+	const char* getLine();
+	bool isValid(){return theFile!=NULL;}
+	char* currWord(){return wordBuf;}
+	void  pushBack(const char* pushTok);
+	char* peekNext();
+	char* peekNextString();
+	bool eof();
+	void reset();
+	bool discard(char* test);
+	void discard(){getToken();}
+	
+	~CTextFile();
+};
+
+#endif // TEXTFILE_H