3 * Copyright 2004 The Ant-Contrib project
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 package net
.sf
.antcontrib
.cpptasks
.parser
;
20 * This parser state checks consumed characters against a specific character
25 public final class CaseInsensitiveLetterState
26 extends AbstractParserState
{
28 * Next state if a match is found.
30 private final AbstractParserState nextState
;
33 * Next state if not match is found.
35 private final AbstractParserState noMatchState
;
38 * Lower case version of character to match.
40 private final char lowerLetter
;
43 * Lower case version of character to match.
45 private final char upperLetter
;
55 * next state if a match on the letter
56 * @param noMatchStateArg
57 * state if no match on letter
59 public CaseInsensitiveLetterState(final AbstractParser parser
,
60 final char matchLetter
,
61 final AbstractParserState nextStateArg
,
62 final AbstractParserState noMatchStateArg
) {
64 this.lowerLetter
= Character
.toLowerCase(matchLetter
);
65 this.upperLetter
= Character
.toUpperCase(matchLetter
);
66 this.nextState
= nextStateArg
;
67 this.noMatchState
= noMatchStateArg
;
71 * Consumes a character and returns the next state for the parser.
75 * @return the configured nextState if ch is the expected character or the
76 * configure noMatchState otherwise.
78 public AbstractParserState
consume(final char ch
) {
79 if (ch
== lowerLetter
|| ch
== upperLetter
) {
83 getParser().getNewLineState();