com.hazelcast.org.codehaus.commons.compiler.util.StringUtil Maven / Gradle / Ivy
/*
* Janino - An embedded Java[TM] compiler
*
* Copyright (c) 2019 Arno Unkrig. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
* following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.hazelcast.org.codehaus.commons.compiler.util;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import com.hazelcast.org.codehaus.commons.nullanalysis.Nullable;
/**
* Utility methods related to {@link String}.
*/
public final
class StringUtil {
private StringUtil() {}
/**
* Breaks a given string up by the system-dependent path-separator character (on UNIX systems, this character is
* ":"; on Microsoft Windows systems it is ";"). Empty components are ignored.
*
* UNIX Examples:
*
*
* - A:B:C
- A, B, C
*
- ::B:
- B
*
- :A
- A
*
- (Empty string)
- (Zero components)
*
*
* @see File#pathSeparatorChar
*/
public static File[]
parsePath(String s) {
int from = 0;
List l = new ArrayList();
for (;;) {
int to = s.indexOf(File.pathSeparatorChar, from);
if (to == -1) {
if (from != s.length()) l.add(new File(s.substring(from)));
break;
}
if (to != from) l.add(new File(s.substring(from, to)));
from = to + 1;
}
return (File[]) l.toArray(new File[l.size()]);
}
/**
* Same as {@link #parsePath(String)}, but returns {@code null} iff s {@code == null}.
*/
@Nullable public static File[]
parseOptionalPath(@Nullable String s) { return s == null ? null : StringUtil.parsePath(s); }
}