/*******************************************************************************
* Copyright 2014 Ivan Shubin http://mindengine.net
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package net.mindengine.galen.parser;
import java.util.ArrayList;
import net.mindengine.galen.specs.reader.StringCharReader;
public class ExpectWord implements Expectation<String> {
private char[] delimeters = new char[]{' ', '\t', ','};
private char[] breakSymbols = null;
@Override
public String read(StringCharReader reader) {
boolean started = false;
StringBuffer buffer = new StringBuffer();
while(reader.hasMore()) {
char symbol = reader.next();
if (isBreaking(symbol)) {
reader.back();
break;
}
else if(isWordDelimeter(symbol)) {
if (started) {
reader.back();
break;
}
}
else {
buffer.append(symbol);
started = true;
}
}
return buffer.toString();
}
private boolean isBreaking(char symbol) {
if (breakSymbols != null) {
for (char breakSymbol : breakSymbols) {
if (breakSymbol == symbol) {
return true;
}
}
}
return false;
}
private boolean isWordDelimeter(char symbol) {
for (char delimeter : delimeters) {
if (symbol == delimeter) {
return true;
}
}
return false;
}
public ExpectWord stopOnTheseSymbols(char...breakSymbols) {
this.breakSymbols = breakSymbols;
return this;
}
public ExpectWord withDelimeters(char...delimeters) {
this.delimeters = delimeters;
return this;
}
public static String read(String line) {
return new ExpectWord().read(new StringCharReader(line));
}
public static String[] readAllWords(StringCharReader reader) {
ArrayList<String> words = new ArrayList<String>();
while(reader.hasMore()) {
String word = new ExpectWord().read(reader);
if (!word.isEmpty()) {
words.add(word);
}
else {
break;
}
}
return words.toArray(new String[]{});
}
}