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76 lines
2.4 KiB
76 lines
2.4 KiB
/*
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* Copyright 1998 American Power Conversion, All Rights Reserved
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*
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* NAME: tokenstr.h
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*
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* PATH:
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*
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* REVISION:
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*
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* DESCRIPTION:
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* This file contains the class definition for the TokenString class. It
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* is designed to replace the strtok() function, because when using strtok
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* "if multiple or simultaneous calls are made ... a high potential for data
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* corruption and innacurate results exists." -- MSVC OnLine Help
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*
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* REFERENCES:
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* Initially created by Todd Giaquinto
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*
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* NOTES:
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* This function mimics the behavior of strtok in all aspects.
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* Examples:
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* String: ,,,,1,2,3 Sep: , Tokens: "1" "2" "3"
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* String: ,#1#2,3#4 Sep: ,# Tokens: "1" "2" "3" "4"
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*
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* Typical Usage:
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* TokenString token_str(string, sep);
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* PCHAR tok = token_str.GetCurrentToken();
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* while (tok) {
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* .....
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* tok = token_str.GetCurrentToken();
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* }
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*
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* The GetCurrentToken call will return a pointer to the current string token
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* and then move the internal pointer to the start of the next token. If
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* GetCurrentToken is called without an argument, the separator string passed
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* to the constructor is used to gather each token. However, GetCurrentToken
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* is overloaded so that one implementation can take a new separator string
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* as an argument. Once a new separator string is passed in, all subsequent
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* calls to the parameter-less GetCurrentToken will use the last passed in
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* separator.
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*
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* REVISIONS:
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* tjg19Jan98: Initial implementation
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* tjg29Jan98: Included formal code review comments
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*/
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#ifndef __TOKENSTR_H
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#define __TOKENSTR_H
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#include "cdefine.h"
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#include "apcobj.h"
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class TokenString {
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private:
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PCHAR theString;
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PCHAR theSeparators;
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PCHAR theCurrentLocation;
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INT theSeparatorLength;
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VOID storeSeparatorString(PCHAR aString);
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BOOL isSeparator(CHAR aCharacter);
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// Declare a private copy constructor and operator = so
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// that any would-be users will get compilation errors
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TokenString(const TokenString &anExistingTokenString);
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TokenString& operator = (const TokenString &anExistingTokenString);
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public:
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TokenString(PCHAR aString, PCHAR aSeparatorString = NULL);
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virtual ~TokenString();
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PCHAR GetCurrentToken();
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PCHAR GetCurrentToken(PCHAR aSeparatorString);
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};
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#endif
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