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 or 24 * whitespace. 25 * 26 * @author Curt Arnold 27 */ 28 public final class WhitespaceOrLetterState extends AbstractParserState { 29 /** 30 * Next state if the character is found. 31 */ 32 private final AbstractParserState nextState; 33 34 /** 35 * Character to match. 36 */ 37 private final char thisLetter; 38 39 /** 40 * Constructor. 41 * 42 * @param parser 43 * parser 44 * @param matchLetter 45 * letter to match 46 * @param nextStateArg 47 * next state if a match on the letter 48 */ 49 public WhitespaceOrLetterState(final AbstractParser parser, final char matchLetter, 50 final AbstractParserState nextStateArg) { 51 super(parser); 52 this.thisLetter = matchLetter; 53 this.nextState = nextStateArg; 54 } 55 56 /** 57 * Consumes a character and returns the next state for the parser. 58 * 59 * @param ch 60 * next character @returns the configured nextState if ch is the 61 * expected character or the configure noMatchState otherwise. 62 * @return next state 63 */ 64 @Override 65 public AbstractParserState consume(final char ch) { 66 if (ch == this.thisLetter) { 67 return this.nextState; 68 } 69 if (ch == ' ' || ch == '\t') { 70 return this; 71 } 72 if (ch == '\n') { 73 getParser().getNewLineState(); 74 } 75 return null; 76 } 77 }