44 lines
1.4 KiB
Java
44 lines
1.4 KiB
Java
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package org.broadinstitute.sting.utils;
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import java.util.List;
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import java.util.ArrayList;
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import java.util.regex.Pattern;
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import java.util.regex.Matcher;
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/**
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* Common utilities for dealing with strings.
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*
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* @author mhanna
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* @version 0.1
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*/
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public class TextFormattingUtils {
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/**
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* The default line width, for GATK output written to the screen.
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*/
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public static final int DEFAULT_LINE_WIDTH = 100;
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/**
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* Simple implementation of word-wrap for a line of text. Idea and
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* regexp shamelessly stolen from http://joust.kano.net/weblog/archives/000060.html.
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* Regexp can probably be simplified for our application.
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* @param text Text to wrap.
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* @param width Maximum line width.
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* @return A list of word-wrapped lines.
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*/
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public static List<String> wordWrap( String text, int width ) {
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Pattern wrapper = Pattern.compile( String.format(".{0,%d}(?:\\S(?: |$)|$)", width-1) );
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Matcher matcher = wrapper.matcher( text );
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List<String> wrapped = new ArrayList<String>();
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while( matcher.find() ) {
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// Regular expression is supersensitive to whitespace.
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// Assert that content is present before adding the line.
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String line = matcher.group().trim();
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if( line.length() > 0 )
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wrapped.add( matcher.group() );
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}
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return wrapped;
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}
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}
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