126 lines
4.1 KiB
C++
126 lines
4.1 KiB
C++
/*
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* c++check - c/c++ syntax checking
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* Copyright (C) 2007-2008 Daniel Marjamäki and Reijo Tomperi
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/
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*/
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#ifndef TOKEN_H
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#define TOKEN_H
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#include <string>
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class TOKEN
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{
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public:
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TOKEN();
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~TOKEN();
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void setstr( const char s[] );
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const std::string &str() const
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{ return _str; }
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const char *aaaa() const
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{ return _cstr; }
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char aaaa0() const
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{ return _cstr[0]; }
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char aaaa1() const
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{ return _cstr[1]; }
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/**
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* Combine two tokens that belong to each other.
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* Ex: "<" and "=" may become "<="
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*/
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void combineWithNext(const char str1[], const char str2[]);
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/**
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* Unlink and delete next token.
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*/
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void deleteNext();
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/**
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* Returns token in given index, related to this token.
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* For example index 1 would return next token, and 2
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* would return next from that one.
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*/
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const TOKEN *tokAt(int index) const;
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const char *strAt(int index) const;
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/**
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* Match given token (or list of tokens) to a pattern list.
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*
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* Possible patterns
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* "%any%" any token
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* "%var%" any token which is a name or type e.g. "hello" or "int"
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* "%num%" Any numeric token, e.g. "23"
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* "%str%" Any token starting with "-character (C-string).
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* "[abc]" Any of the characters 'a' or 'b' or 'c'
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* "int|void|char" Any of the strings, int, void or char
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* "int|void|char|" Any of the strings, int, void or char or empty string
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* "someRandomText" If token contains "someRandomText".
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*
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* The patterns can be also combined to compare to multiple tokens at once
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* by separating tokens with a space, e.g.
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* ") const|void {" will return true if first token is ')' next token is either
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* "const" or "void" and token after that is '{'. If even one of the tokens does not
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* match its pattern, false is returned.
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*
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* @param tok List of tokens to be compared to the pattern
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* @param pattern The pattern where tokens are compared, e.g. "const"
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* or ") const|volatile| {".
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* @param varname1 Used with pattern "%var1%" and "%var2%"
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* @param varname2 Used with pattern "%var1%" and "%var2%"
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* @return true if given token matches with given pattern
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* false if given token does not match with given pattern
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*/
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static bool Match(const TOKEN *tok, const char pattern[], const char *varname1[]=0, const char *varname2[]=0);
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bool isName() const;
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bool isNumber() const;
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bool isStandardType() const;
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static const TOKEN *findmatch(const TOKEN *tok, const char pattern[], const char *varname1[]=0, const char *varname2[]=0);
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static const TOKEN *findtoken(const TOKEN *tok1, const char *tokenstr[]);
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/**
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* Needle is build from multiple alternatives. If one of
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* them is equal to haystack, return value is 1. If there
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* are no matches, but one alternative to needle is empty
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* string, return value is 0. If needle was not found, return
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* value is -1.
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*
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* @param needle e.g. "one|two" or "|one|two"
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* @param haystack e.g. "one", "two" or "invalid"
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* @return 1 if needle is found from the haystack
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* 0 if needle was empty string
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* -1 if needle was not found
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*/
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static int multiCompare( const char *needle, const char *haystack );
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unsigned int FileIndex;
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unsigned int linenr;
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TOKEN *next;
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private:
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std::string _str;
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char * _cstr;
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bool _isName;
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bool _isNumber;
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};
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#endif // TOKEN_H
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