1 /* 2 * #%L 3 * Native ARchive plugin for Maven 4 * %% 5 * Copyright (C) 2002 - 2014 NAR Maven Plugin developers. 6 * %% 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * #L% 19 */ 20 package com.github.maven_nar.cpptasks.parser; 21 22 /** 23 * This parser state checks consumed characters against a specific character 24 * (case insensitive) or whitespace. 25 * 26 * @author Curt Arnold 27 */ 28 public final class WhitespaceOrCaseInsensitiveLetterState extends AbstractParserState { 29 /** 30 * Next state if the character is found. 31 */ 32 private final AbstractParserState nextState; 33 34 /** 35 * Character to match (lower case). 36 */ 37 private final char lowerLetter; 38 39 /** 40 * Character to match (upper case). 41 */ 42 private final char upperLetter; 43 44 /** 45 * Constructor. 46 * 47 * @param parser 48 * parser 49 * @param matchLetter 50 * letter to match 51 * @param nextStateArg 52 * next state if a match on the letter 53 */ 54 public WhitespaceOrCaseInsensitiveLetterState(final AbstractParser parser, final char matchLetter, 55 final AbstractParserState nextStateArg) { 56 super(parser); 57 this.lowerLetter = Character.toLowerCase(matchLetter); 58 this.upperLetter = Character.toUpperCase(matchLetter); 59 this.nextState = nextStateArg; 60 } 61 62 /** 63 * Consumes a character and returns the next state for the parser. 64 * 65 * @param ch 66 * next character 67 * @return the configured nextState if ch is the expected character or the 68 * configure noMatchState otherwise. 69 */ 70 @Override 71 public AbstractParserState consume(final char ch) { 72 if (ch == this.lowerLetter || ch == this.upperLetter) { 73 return this.nextState; 74 } 75 if (ch == ' ' || ch == '\t') { 76 return this; 77 } 78 if (ch == '\n') { 79 getParser().getNewLineState(); 80 } 81 return null; 82 } 83 }