Mega Code Archive
Strip string
<![CDATA[
/*
* @(#)$Id: StringUtils.java 3619 2008-03-26 07:23:03Z yui $
*
* Copyright 2006-2008 Makoto YUI
*
* 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.
*
* Contributors:
* Makoto YUI - initial implementation
*/
//package xbird.util.string;
/**
*
* <DIV lang="en"></DIV>
* <DIV lang="ja"></DIV>
*
* @author Makoto YUI (yuin405+xbird@gmail.com)
*/
public final class StringUtils {
public static String strip(String src, String stripChars) {
return (String) strip((CharSequence) src, stripChars);
}
/**
* @param stripChars if null, remove leading unicode whitespaces.
*/
public static CharSequence strip(CharSequence src, String stripChars) {
if(src == null || src.length() == 0) {
return src;
}
final CharSequence striped = stripStart(src, stripChars);
return stripEnd(striped, stripChars);
}
/**
* @param stripChars if null, remove leading unicode whitespaces.
*/
public static CharSequence stripStart(CharSequence src, String stripChars) {
int srclen;
if(src == null || (srclen = src.length()) == 0) {
return src;
}
int start = 0;
if(stripChars == null) {
while((start != srclen) && Character.isWhitespace(src.charAt(start))) {
start++;
}
} else if(stripChars.length() == 0) {
return src;
} else {
while((start != srclen) && (stripChars.indexOf(src.charAt(start)) != -1)) {
start++;
}
}
return src.subSequence(start, srclen);
}
/**
* @param stripChars if null, remove leading unicode whitespaces.
*/
public static CharSequence stripEnd(CharSequence src, String stripChars) {
int end;
if(src == null || (end = src.length()) == 0) {
return src;
}
if(stripChars == null) {
while((end != 0) && Character.isWhitespace(src.charAt(end - 1))) {
end--;
}
} else if(stripChars.length() == 0) {
return src;
} else {
while((end != 0) && (stripChars.indexOf(src.charAt(end - 1)) != -1)) {
end--;
}
}
return src.subSequence(0, end);
}
}
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