GrammarParser


1   /*
2    * GrammarParser.java
3    *
4    * THIS FILE HAS BEEN GENERATED AUTOMATICALLY. DO NOT EDIT!
5    *
6    * This library is free software; you can redistribute it and/or
7    * modify it under the terms of the GNU Lesser General Public License
8    * as published by the Free Software Foundation; either version 2.1
9    * of the License, or (at your option) any later version.
10   *
11   * This library is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   * Lesser General Public License for more details.
15   *
16   * You should have received a copy of the GNU Lesser General Public
17   * License along with this library; if not, write to the Free
18   * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
19   * MA 02111-1307, USA.
20   *
21   * Copyright (c) 2003-2005 Per Cederberg. All rights reserved.
22   */
23  
24  package net.percederberg.grammatica;
25  
26  import java.io.Reader  ;
27  
28  import net.percederberg.grammatica.parser.Analyzer;
29  import net.percederberg.grammatica.parser.ParserCreationException;
30  import net.percederberg.grammatica.parser.ProductionPattern;
31  import net.percederberg.grammatica.parser.ProductionPatternAlternative;
32  import net.percederberg.grammatica.parser.RecursiveDescentParser;
33  
34  /**
35   * A token stream parser.
36   *
37   * @author   Per Cederberg, <per at percederberg dot net>
38   * @version  1.5
39   */
40  class GrammarParser extends RecursiveDescentParser {
41  
42      /**
43       * A generated production node identity constant.
44       */
45      private static final int SUBPRODUCTION_1 = 3001;
46  
47      /**
48       * A generated production node identity constant.
49       */
50      private static final int SUBPRODUCTION_2 = 3002;
51  
52      /**
53       * A generated production node identity constant.
54       */
55      private static final int SUBPRODUCTION_3 = 3003;
56  
57      /**
58       * A generated production node identity constant.
59       */
60      private static final int SUBPRODUCTION_4 = 3004;
61  
62      /**
63       * Creates a new parser.
64       *
65       * @param in             the input stream to read from
66       *
67       * @throws ParserCreationException if the parser couldn't be
68       *             initialized correctly
69       */
70      public GrammarParser(Reader   in) throws ParserCreationException {
71          super(new GrammarTokenizer(in));
72          createPatterns();
73      }
74  
75      /**
76       * Creates a new parser.
77       *
78       * @param in             the input stream to read from
79       * @param analyzer       the analyzer to use while parsing
80       *
81       * @throws ParserCreationException if the parser couldn't be
82       *             initialized correctly
83       */
84      public GrammarParser(Reader   in, Analyzer analyzer)
85          throws ParserCreationException {
86  
87          super(new GrammarTokenizer(in), analyzer);
88          createPatterns();
89      }
90  
91      /**
92       * Initializes the parser by creating all the production patterns.
93       *
94       * @throws ParserCreationException if the parser couldn't be
95       *             initialized correctly
96       */
97      private void createPatterns() throws ParserCreationException {
98          ProductionPattern             pattern;
99          ProductionPatternAlternative  alt;
100 
101         pattern = new ProductionPattern(GrammarConstants.GRAMMAR,
102                                         "Grammar");
103         alt = new ProductionPatternAlternative();
104         alt.addProduction(GrammarConstants.HEADER_PART, 0, 1);
105         alt.addProduction(GrammarConstants.TOKEN_PART, 1, 1);
106         alt.addProduction(GrammarConstants.PRODUCTION_PART, 0, 1);
107         pattern.addAlternative(alt);
108         addPattern(pattern);
109 
110         pattern = new ProductionPattern(GrammarConstants.HEADER_PART,
111                                         "HeaderPart");
112         alt = new ProductionPatternAlternative();
113         alt.addToken(GrammarConstants.HEADER, 1, 1);
114         alt.addProduction(GrammarConstants.HEADER_DECLARATION, 0, -1);
115         pattern.addAlternative(alt);
116         addPattern(pattern);
117 
118         pattern = new ProductionPattern(GrammarConstants.HEADER_DECLARATION,
119                                         "HeaderDeclaration");
120         alt = new ProductionPatternAlternative();
121         alt.addToken(GrammarConstants.IDENTIFIER, 1, 1);
122         alt.addToken(GrammarConstants.EQUALS, 1, 1);
123         alt.addToken(GrammarConstants.QUOTED_STRING, 1, 1);
124         pattern.addAlternative(alt);
125         addPattern(pattern);
126 
127         pattern = new ProductionPattern(GrammarConstants.TOKEN_PART,
128                                         "TokenPart");
129         alt = new ProductionPatternAlternative();
130         alt.addToken(GrammarConstants.TOKENS, 1, 1);
131         alt.addProduction(GrammarConstants.TOKEN_DECLARATION, 0, -1);
132         pattern.addAlternative(alt);
133         addPattern(pattern);
134 
135         pattern = new ProductionPattern(GrammarConstants.TOKEN_DECLARATION,
136                                         "TokenDeclaration");
137         alt = new ProductionPatternAlternative();
138         alt.addToken(GrammarConstants.IDENTIFIER, 1, 1);
139         alt.addToken(GrammarConstants.EQUALS, 1, 1);
140         alt.addProduction(GrammarConstants.TOKEN_VALUE, 1, 1);
141         alt.addProduction(GrammarConstants.TOKEN_HANDLING, 0, 1);
142         pattern.addAlternative(alt);
143         addPattern(pattern);
144 
145         pattern = new ProductionPattern(GrammarConstants.TOKEN_VALUE,
146                                         "TokenValue");
147         alt = new ProductionPatternAlternative();
148         alt.addToken(GrammarConstants.QUOTED_STRING, 1, 1);
149         pattern.addAlternative(alt);
150         alt = new ProductionPatternAlternative();
151         alt.addToken(GrammarConstants.REGEXP, 1, 1);
152         pattern.addAlternative(alt);
153         addPattern(pattern);
154 
155         pattern = new ProductionPattern(GrammarConstants.TOKEN_HANDLING,
156                                         "TokenHandling");
157         alt = new ProductionPatternAlternative();
158         alt.addToken(GrammarConstants.IGNORE, 1, 1);
159         pattern.addAlternative(alt);
160         alt = new ProductionPatternAlternative();
161         alt.addToken(GrammarConstants.ERROR, 1, 1);
162         pattern.addAlternative(alt);
163         addPattern(pattern);
164 
165         pattern = new ProductionPattern(GrammarConstants.PRODUCTION_PART,
166                                         "ProductionPart");
167         alt = new ProductionPatternAlternative();
168         alt.addToken(GrammarConstants.PRODUCTIONS, 1, 1);
169         alt.addProduction(GrammarConstants.PRODUCTION_DECLARATION, 0, -1);
170         pattern.addAlternative(alt);
171         addPattern(pattern);
172 
173         pattern = new ProductionPattern(GrammarConstants.PRODUCTION_DECLARATION,
174                                         "ProductionDeclaration");
175         alt = new ProductionPatternAlternative();
176         alt.addToken(GrammarConstants.IDENTIFIER, 1, 1);
177         alt.addToken(GrammarConstants.EQUALS, 1, 1);
178         alt.addProduction(GrammarConstants.PRODUCTION, 1, 1);
179         alt.addToken(GrammarConstants.SEMICOLON, 1, 1);
180         pattern.addAlternative(alt);
181         addPattern(pattern);
182 
183         pattern = new ProductionPattern(GrammarConstants.PRODUCTION,
184                                         "Production");
185         alt = new ProductionPatternAlternative();
186         alt.addProduction(GrammarConstants.PRODUCTION_ATOM, 1, -1);
187         alt.addProduction(SUBPRODUCTION_1, 0, 1);
188         pattern.addAlternative(alt);
189         addPattern(pattern);
190 
191         pattern = new ProductionPattern(GrammarConstants.PRODUCTION_ATOM,
192                                         "ProductionAtom");
193         alt = new ProductionPatternAlternative();
194         alt.addToken(GrammarConstants.IDENTIFIER, 1, 1);
195         alt.addProduction(SUBPRODUCTION_2, 0, 1);
196         pattern.addAlternative(alt);
197         alt = new ProductionPatternAlternative();
198         alt.addToken(GrammarConstants.QUOTED_STRING, 1, 1);
199         alt.addProduction(SUBPRODUCTION_3, 0, 1);
200         pattern.addAlternative(alt);
201         alt = new ProductionPatternAlternative();
202         alt.addToken(GrammarConstants.LEFT_PAREN, 1, 1);
203         alt.addProduction(GrammarConstants.PRODUCTION, 1, 1);
204         alt.addToken(GrammarConstants.RIGHT_PAREN, 1, 1);
205         alt.addProduction(SUBPRODUCTION_4, 0, 1);
206         pattern.addAlternative(alt);
207         alt = new ProductionPatternAlternative();
208         alt.addToken(GrammarConstants.LEFT_BRACE, 1, 1);
209         alt.addProduction(GrammarConstants.PRODUCTION, 1, 1);
210         alt.addToken(GrammarConstants.RIGHT_BRACE, 1, 1);
211         pattern.addAlternative(alt);
212         alt = new ProductionPatternAlternative();
213         alt.addToken(GrammarConstants.LEFT_BRACKET, 1, 1);
214         alt.addProduction(GrammarConstants.PRODUCTION, 1, 1);
215         alt.addToken(GrammarConstants.RIGHT_BRACKET, 1, 1);
216         pattern.addAlternative(alt);
217         addPattern(pattern);
218 
219         pattern = new ProductionPattern(SUBPRODUCTION_1,
220                                         "Subproduction1");
221         pattern.setSynthetic(true);
222         alt = new ProductionPatternAlternative();
223         alt.addToken(GrammarConstants.VERTICAL_BAR, 1, 1);
224         alt.addProduction(GrammarConstants.PRODUCTION, 1, 1);
225         pattern.addAlternative(alt);
226         addPattern(pattern);
227 
228         pattern = new ProductionPattern(SUBPRODUCTION_2,
229                                         "Subproduction2");
230         pattern.setSynthetic(true);
231         alt = new ProductionPatternAlternative();
232         alt.addToken(GrammarConstants.QUESTION_MARK, 1, 1);
233         pattern.addAlternative(alt);
234         alt = new ProductionPatternAlternative();
235         alt.addToken(GrammarConstants.ASTERISK, 1, 1);
236         pattern.addAlternative(alt);
237         alt = new ProductionPatternAlternative();
238         alt.addToken(GrammarConstants.PLUS_SIGN, 1, 1);
239         pattern.addAlternative(alt);
240         addPattern(pattern);
241 
242         pattern = new ProductionPattern(SUBPRODUCTION_3,
243                                         "Subproduction3");
244         pattern.setSynthetic(true);
245         alt = new ProductionPatternAlternative();
246         alt.addToken(GrammarConstants.QUESTION_MARK, 1, 1);
247         pattern.addAlternative(alt);
248         alt = new ProductionPatternAlternative();
249         alt.addToken(GrammarConstants.ASTERISK, 1, 1);
250         pattern.addAlternative(alt);
251         alt = new ProductionPatternAlternative();
252         alt.addToken(GrammarConstants.PLUS_SIGN, 1, 1);
253         pattern.addAlternative(alt);
254         addPattern(pattern);
255 
256         pattern = new ProductionPattern(SUBPRODUCTION_4,
257                                         "Subproduction4");
258         pattern.setSynthetic(true);
259         alt = new ProductionPatternAlternative();
260         alt.addToken(GrammarConstants.QUESTION_MARK, 1, 1);
261         pattern.addAlternative(alt);
262         alt = new ProductionPatternAlternative();
263         alt.addToken(GrammarConstants.ASTERISK, 1, 1);
264         pattern.addAlternative(alt);
265         alt = new ProductionPatternAlternative();
266         alt.addToken(GrammarConstants.PLUS_SIGN, 1, 1);
267         pattern.addAlternative(alt);
268         addPattern(pattern);
269     }
270 }
271
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