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/*
* Copyright (c) 2017 Mockito contributors
* This program is made available under the terms of the MIT License.
*/
package org.mockito.internal.util;
import static java.util.Arrays.asList;
import java.util.Collection;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class StringUtil {
private static final Pattern CAPS = Pattern.compile("([A-Z\\d][^A-Z\\d]*)");
private StringUtil() {}
/**
* @param text
* to have the first line removed
* @return less first line
*/
public static String removeFirstLine(String text) {
return text.replaceFirst(".*?\n", "");
}
/**
* Joins Strings with line break character. It adds line break in front, too.
* This makes it something like 'format' no really 'join'.
*/
public static String join(Object ... linesToBreak) {
return join("\n", asList(linesToBreak));
}
/**
* Joins Strings with EOL character
*
* @param start the starting String
* @param lines collection to join
*/
public static String join(String start, Collection<?> lines) {
return join(start, "", lines);
}
/**
* Joins Strings with EOL character
*
* @param start the starting String
* @param linePrefix the prefix for each line to be joined
* @param lines collection to join
*/
public static String join(String start, String linePrefix, Collection<?> lines) {
if (lines.isEmpty()) {
return "";
}
StringBuilder out = new StringBuilder(start);
for (Object line : lines) {
out.append(linePrefix).append(line).append("\n");
}
return out.substring(0, out.length() - 1); //lose last EOL
}
public static String decamelizeMatcher(String className) {
if (className.length() == 0) {
return "<custom argument matcher>";
}
String decamelized = decamelizeClassName(className);
if (decamelized.length() == 0) {
return "<" + className + ">";
}
return "<" + decamelized + ">";
}
private static String decamelizeClassName(String className) {
Matcher match = CAPS.matcher(className);
StringBuilder deCameled = new StringBuilder();
while (match.find()) {
if (deCameled.length() == 0) {
deCameled.append(match.group());
} else {
deCameled.append(" ");
deCameled.append(match.group().toLowerCase());
}
}
return deCameled.toString();
}
}
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