From 073ef05b192338247ea304f2a72615633947b446 Mon Sep 17 00:00:00 2001 From: "milo24x7@gmail.com" Date: Sun, 7 Jul 2013 21:46:16 +0000 Subject: Updated open source license declaration and fixed some formatting issues. --- Parser/Token.h | 316 +++++++++++++++++++++++++++++++-------------------------- 1 file changed, 170 insertions(+), 146 deletions(-) (limited to 'Parser/Token.h') diff --git a/Parser/Token.h b/Parser/Token.h index 870fa66..d519d5b 100644 --- a/Parser/Token.h +++ b/Parser/Token.h @@ -1,146 +1,170 @@ -/* Project STARSHATTER - John DiCamillo - Copyright © 1997-2001. All Rights Reserved. - - SUBSYSTEM: Parser - FILE: Token.h - AUTHOR: John DiCamillo - - - OVERVIEW - ======== - Scanner class definition -*/ - -#ifndef Token_h -#define Token_h - -#include "Text.h" -#include "Dictionary.h" - -#pragma warning( disable : 4237) - -// +-------------------------------------------------------------------+ - -class Reader; -class Token; -class Scanner; - -// +-------------------------------------------------------------------+ - -class Token -{ - friend class Scanner; - -public: - // keywords must be alphanumeric identifiers or symbolic identifiers - enum Types { Undefined, Keyword, AlphaIdent, SymbolicIdent, Comment, - IntLiteral, FloatLiteral, StringLiteral, CharLiteral, - Dot, Comma, Colon, Semicolon, - LParen, RParen, LBracket, RBracket, LBrace, RBrace, - EOT, LastTokenType }; - - enum Alias { CompoundSeparator = Dot, - ItemSeparator = Comma, - StatementTerminator = Semicolon, - TypeIndicator = Colon, - Lambda = LastTokenType + 1 }; - - Token(); - Token(const Token& rhs); - Token(int t); - Token(const char* s, int t, int k=0, int l=0, int c=0); - Token(const Text& s, int t, int k=0, int l=0, int c=0); - ~Token(); - - Token& operator = (const Token& rhs); - - bool match(const Token& ref) const; - - Text symbol() const; - int type() const { return mType; } - int key() const { return mKey; } - int line() const { return mLine; } - int column() const { return mColumn; } - - Text typestr() const; - - static Text describe(const Text& tok); - static void addKey(const Text& k, int v); - static void addKeys(Dictionary& keys); - static bool findKey(const Text& k, int& v); - static void comments(const Text& begin, const Text& end); - static void altComments(const Text& begin, const Text& end); - static void hideComments(bool hide = true) { hidecom = hide; } - - static char comBeg(unsigned int i) { return combeg[i]; } - static char comEnd(unsigned int i) { return comend[i]; } - static char altBeg(unsigned int i) { return altbeg[i]; } - static char altEnd(unsigned int i) { return altend[i]; } - - static void close(); - -protected: - int mLength; - union { - char mSymbol[8]; - char* mFullSymbol; - }; - int mType; - int mKey; - int mLine; - int mColumn; - - static bool hidecom; - static char combeg[3]; - static char comend[3]; - static char altbeg[3]; - static char altend[3]; - - static Dictionary keymap; -}; - -// +-------------------------------------------------------------------+ - -class Scanner -{ -public: - Scanner(Reader* r = 0); - Scanner(const Text& s); - Scanner(const Scanner& rhs); - virtual ~Scanner(); - - Scanner& operator = (const Scanner& rhs); - - void Load(const Text& s); - - enum Need { Demand, Request }; - virtual Token Get(Need n = Demand); - - void PutBack() { index = old_index; line = old_line; } - int GetCursor() { return index; } - int GetLine() { return line; } - void Reset(int c, int l) { index = old_index = c; line = old_line = l; } - Token Best() const { return best; } - -protected: - virtual int GetNumeric(); - virtual bool IsSymbolic(char c); - virtual bool IsAlpha(char c); - - Reader* reader; - char* str; - - const char* p; - const char* eos; - - size_t index; - size_t old_index; - Token best; - size_t length; - size_t line; - size_t old_line; - size_t lineStart; -}; - -#endif // TOKEN_H +/* Starshatter OpenSource Distribution + Copyright (c) 1997-2004, Destroyer Studios LLC. + All Rights Reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + * Neither the name "Destroyer Studios" nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + + SUBSYSTEM: Parser + FILE: Token.h + AUTHOR: John DiCamillo + + + OVERVIEW + ======== + Scanner class definition +*/ + +#ifndef Token_h +#define Token_h + +#include "Text.h" +#include "Dictionary.h" + +#pragma warning( disable : 4237) + +// +-------------------------------------------------------------------+ + +class Reader; +class Token; +class Scanner; + +// +-------------------------------------------------------------------+ + +class Token +{ + friend class Scanner; + +public: + // keywords must be alphanumeric identifiers or symbolic identifiers + enum Types { Undefined, Keyword, AlphaIdent, SymbolicIdent, Comment, + IntLiteral, FloatLiteral, StringLiteral, CharLiteral, + Dot, Comma, Colon, Semicolon, + LParen, RParen, LBracket, RBracket, LBrace, RBrace, + EOT, LastTokenType }; + + enum Alias { CompoundSeparator = Dot, + ItemSeparator = Comma, + StatementTerminator = Semicolon, + TypeIndicator = Colon, + Lambda = LastTokenType + 1 }; + + Token(); + Token(const Token& rhs); + Token(int t); + Token(const char* s, int t, int k=0, int l=0, int c=0); + Token(const Text& s, int t, int k=0, int l=0, int c=0); + ~Token(); + + Token& operator = (const Token& rhs); + + bool match(const Token& ref) const; + + Text symbol() const; + int type() const { return mType; } + int key() const { return mKey; } + int line() const { return mLine; } + int column() const { return mColumn; } + + Text typestr() const; + + static Text describe(const Text& tok); + static void addKey(const Text& k, int v); + static void addKeys(Dictionary& keys); + static bool findKey(const Text& k, int& v); + static void comments(const Text& begin, const Text& end); + static void altComments(const Text& begin, const Text& end); + static void hideComments(bool hide = true) { hidecom = hide; } + + static char comBeg(unsigned int i) { return combeg[i]; } + static char comEnd(unsigned int i) { return comend[i]; } + static char altBeg(unsigned int i) { return altbeg[i]; } + static char altEnd(unsigned int i) { return altend[i]; } + + static void close(); + +protected: + int mLength; + union { + char mSymbol[8]; + char* mFullSymbol; + }; + int mType; + int mKey; + int mLine; + int mColumn; + + static bool hidecom; + static char combeg[3]; + static char comend[3]; + static char altbeg[3]; + static char altend[3]; + + static Dictionary keymap; +}; + +// +-------------------------------------------------------------------+ + +class Scanner +{ +public: + Scanner(Reader* r = 0); + Scanner(const Text& s); + Scanner(const Scanner& rhs); + virtual ~Scanner(); + + Scanner& operator = (const Scanner& rhs); + + void Load(const Text& s); + + enum Need { Demand, Request }; + virtual Token Get(Need n = Demand); + + void PutBack() { index = old_index; line = old_line; } + int GetCursor() { return index; } + int GetLine() { return line; } + void Reset(int c, int l) { index = old_index = c; line = old_line = l; } + Token Best() const { return best; } + +protected: + virtual int GetNumeric(); + virtual bool IsSymbolic(char c); + virtual bool IsAlpha(char c); + + Reader* reader; + char* str; + + const char* p; + const char* eos; + + size_t index; + size_t old_index; + Token best; + size_t length; + size_t line; + size_t old_line; + size_t lineStart; +}; + +#endif // TOKEN_H -- cgit v1.1