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Java > Open Source Codes > org > jruby > lexer > yacc > LexState


1 /***** BEGIN LICENSE BLOCK *****
2  * Version: CPL 1.0/GPL 2.0/LGPL 2.1
3  *
4  * The contents of this file are subject to the Common Public
5  * License Version 1.0 (the "License"); you may not use this file
6  * except in compliance with the License. You may obtain a copy of
7  * the License at http://www.eclipse.org/legal/cpl-v10.html
8  *
9  * Software distributed under the License is distributed on an "AS
10  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
11  * implied. See the License for the specific language governing
12  * rights and limitations under the License.
13  *
14  * Copyright (C) 2001-2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
15  * Copyright (C) 2002 Anders Bengtsson <ndrsbngtssn@yahoo.se>
16  * Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
17  * Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>
18  *
19  * Alternatively, the contents of this file may be used under the terms of
20  * either of the GNU General Public License Version 2 or later (the "GPL"),
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30  ***** END LICENSE BLOCK *****/
31 package org.jruby.lexer.yacc;
32
33 /**
34  *
35  * @author jpetersen
36  */
37 public final class LexState {
38     public static final LexState EXPR_BEG = new LexState("EXPR_BEG");
39     public static final LexState EXPR_END = new LexState("EXPR_END");
40     public static final LexState EXPR_ARG = new LexState("EXPR_ARG");
41     public static final LexState EXPR_CMDARG = new LexState("EXPR_CMDARG");
42     public static final LexState EXPR_ENDARG = new LexState("EXPR_ENDARG");
43     public static final LexState EXPR_MID = new LexState("EXPR_MID");
44     public static final LexState EXPR_FNAME = new LexState("EXPR_FNAME");
45     public static final LexState EXPR_DOT = new LexState("EXPR_DOT");
46     public static final LexState EXPR_CLASS = new LexState("EXPR_CLASS");
47
48     private final String JavaDoc debug;
49
50     private LexState(String JavaDoc debug) {
51         this.debug = debug;
52     }
53
54     public boolean isExprBeg() {
55         return this == EXPR_BEG;
56     }
57
58     public boolean isExprEnd() {
59         return this == EXPR_END;
60     }
61
62     public boolean isExprArg() {
63         return this == EXPR_ARG;
64     }
65
66     public boolean isExprCmdArg() {
67         return this == EXPR_CMDARG;
68     }
69
70     public boolean isExprEndArg() {
71         return this == EXPR_ENDARG;
72     }
73
74     public boolean isExprMid() {
75         return this == EXPR_MID;
76     }
77
78     public boolean isExprFName() {
79         return this == EXPR_FNAME;
80     }
81
82     public boolean isExprDot() {
83         return this == EXPR_DOT;
84     }
85
86     public boolean isExprClass() {
87         return this == EXPR_CLASS;
88     }
89     
90     public boolean isArgument () {
91         return this == EXPR_ARG || this == EXPR_CMDARG;
92     }
93
94     public String JavaDoc toString() {
95         return debug;
96     }
97 }
98
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