1324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 2324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// ANTLRRuleStack.m 3324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// ANTLR 4324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 5324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Created by Alan Condit on 6/9/10. 6324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// [The "BSD licence"] 7324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Copyright (c) 2010 Alan Condit 8324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// All rights reserved. 9324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 10324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Redistribution and use in source and binary forms, with or without 11324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// modification, are permitted provided that the following conditions 12324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// are met: 13324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 1. Redistributions of source code must retain the above copyright 14324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// notice, this list of conditions and the following disclaimer. 15324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 2. Redistributions in binary form must reproduce the above copyright 16324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// notice, this list of conditions and the following disclaimer in the 17324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// documentation and/or other materials provided with the distribution. 18324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 3. The name of the author may not be used to endorse or promote products 19324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// derived from this software without specific prior written permission. 20324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 21324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 32324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#define SUCCESS (0) 33324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#define FAILURE (-1) 34324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 35324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverextern NSInteger debug; 36324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 37324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import "ANTLRRuleStack.h" 38324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import "ANTLRTree.h" 39324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 40324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/* 41324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Start of ANTLRRuleStack 42324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 43324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@implementation ANTLRRuleStack 44324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 45324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver+ (ANTLRRuleStack *)newANTLRRuleStack 46324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 47324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return [[ANTLRRuleStack alloc] init]; 48324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 49324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 50324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver+ (ANTLRRuleStack *)newANTLRRuleStack:(NSInteger)cnt 51324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 52324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return [[ANTLRRuleStack alloc] initWithLen:cnt]; 53324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 54324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 55324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id)init 56324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 57324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ((self = [super init]) != nil) { 58324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 59324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return( self ); 60324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 61324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 62324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id)initWithLen:(NSInteger)cnt 63324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 64324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ((self = [super initWithLen:cnt]) != nil) { 65324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 66324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return( self ); 67324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 68324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 69324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void)dealloc 70324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 71324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#ifdef DEBUG_DEALLOC 72324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSLog( @"called dealloc in ANTLRRuleStack" ); 73324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#endif 74324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [super dealloc]; 75324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 76324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 77324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) copyWithZone:(NSZone *)aZone 78324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 79324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return [super copyWithZone:aZone]; 80324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 81324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 82324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger)count 83324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 84324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ANTLRRuleMemo *anElement; 85324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger aCnt = 0; 86324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver for( int i = 0; i < BuffSize; i++ ) { 87324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ((anElement = ptrBuffer[i]) != nil) 88324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver aCnt++; 89324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 90324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return aCnt; 91324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 92324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 93324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger)size 94324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 95324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ANTLRRuleMemo *anElement; 96324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger aSize = 0; 97324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver for( int i = 0; i < BuffSize; i++ ) { 98324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ((anElement = ptrBuffer[i]) != nil) { 99324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver aSize++; 100324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 101324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 102324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return aSize; 103324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 104324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 105324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (ANTLRHashRule *)pop 106324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 107324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return (ANTLRHashRule *)[super pop]; 108324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 109324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 110324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) insertObject:(ANTLRHashRule *)aRule atIndex:(NSInteger)idx 111324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 112324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ( idx >= BuffSize ) { 113324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ( debug > 2 ) NSLog( @"In ANTLRRuleStack attempting to insert aRule at Index %d, but Buffer is only %d long\n", idx, BuffSize ); 114324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [self ensureCapacity:idx]; 115324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 116324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ( aRule != ptrBuffer[idx] ) { 117324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ( ptrBuffer[idx] ) [ptrBuffer[idx] release]; 118324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [aRule retain]; 119324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 120324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ptrBuffer[idx] = aRule; 121324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 122324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 123324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (ANTLRHashRule *)objectAtIndex:(NSInteger)idx 124324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 125324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if (idx < BuffSize) { 126324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return ptrBuffer[idx]; 127324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 128324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return nil; 129324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 130324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 131324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void)putHashRuleAtRuleIndex:(NSInteger)aRuleIndex StartIndex:(NSInteger)aStartIndex StopIndex:(NSInteger)aStopIndex 132324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 133324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ANTLRHashRule *aHashRule; 134324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ANTLRRuleMemo *aRuleMemo; 135324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 136324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if (aRuleIndex >= BuffSize) { 137324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ( debug) NSLog( @"putHashRuleAtRuleIndex attempting to insert aRule at Index %d, but Buffer is only %d long\n", aRuleIndex, BuffSize ); 138324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [self ensureCapacity:aRuleIndex]; 139324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 140324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if ((aHashRule = ptrBuffer[aRuleIndex]) == nil) { 141324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver aHashRule = [[ANTLRHashRule newANTLRHashRuleWithLen:17] retain]; 142324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ptrBuffer[aRuleIndex] = aHashRule; 143324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 144324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver if (( aRuleMemo = [aHashRule objectAtIndex:aStartIndex] ) == nil ) { 145324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver aRuleMemo = [[ANTLRRuleMemo newANTLRRuleMemo] retain]; 146324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [aHashRule insertObject:aRuleMemo atIndex:aStartIndex]; 147324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 148324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [aRuleMemo setStartIndex:[NSNumber numberWithInteger:aStartIndex]]; 149324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [aRuleMemo setStopIndex:[NSNumber numberWithInteger:aStopIndex]]; 150324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 151324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 152324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@end 153