1// 2// ANTLRTreePatternLexer.h 3// ANTLR 4// 5// Created by Alan Condit on 6/18/10. 6// [The "BSD licence"] 7// Copyright (c) 2010 Alan Condit 8// All rights reserved. 9// 10// Redistribution and use in source and binary forms, with or without 11// modification, are permitted provided that the following conditions 12// are met: 13// 1. Redistributions of source code must retain the above copyright 14// notice, this list of conditions and the following disclaimer. 15// 2. Redistributions in binary form must reproduce the above copyright 16// notice, this list of conditions and the following disclaimer in the 17// documentation and/or other materials provided with the distribution. 18// 3. The name of the author may not be used to endorse or promote products 19// derived from this software without specific prior written permission. 20// 21// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 32#import <Cocoa/Cocoa.h> 33 34typedef enum { 35 ANTLRLexerTokenTypeEOF = -1, 36 ANTLRLexerTokenTypeInvalid, 37 ANTLRLexerTokenTypeBEGIN, 38 ANTLRLexerTokenTypeEND, 39 ANTLRLexerTokenTypeID, 40 ANTLRLexerTokenTypeARG, 41 ANTLRLexerTokenTypePERCENT, 42 ANTLRLexerTokenTypeCOLON, 43 ANTLRLexerTokenTypeDOT, 44} ANTLRLexerTokenType; 45 46 47@interface ANTLRTreePatternLexer : NSObject { 48 49/** The tree pattern to lex like "(A B C)" */ 50NSString *pattern; 51 52/** Index into input string */ 53NSInteger p; 54 55/** Current char */ 56NSInteger c; 57 58/** How long is the pattern in char? */ 59NSInteger n; 60 61/** Set when token type is ID or ARG (name mimics Java's StreamTokenizer) */ 62NSMutableData *sval; 63__strong char *data; 64 65BOOL error; 66 67} 68 69@property (retain) NSString *pattern; 70@property (assign) NSInteger p; 71@property (assign) NSInteger c; 72@property (assign) NSInteger n; 73@property (retain, getter=getSval, setter=setSval:) NSMutableData *sval; 74@property (assign) char *data; 75@property (assign) BOOL error; 76 77+ (ANTLRTreePatternLexer *)newANTLRTreePatternLexer:(NSString *)aPattern; 78- (id) init; 79- (id) initWithPattern:(NSString *)aPattern; 80 81- (void) dealloc; 82- (NSInteger) nextToken; 83- (void) consume; 84- (NSString *)toString; 85 86- (NSMutableData *)getSval; 87- (void) setSval:(NSMutableData *)aSval; 88 89@end 90