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/*
* Copyright (c) 2018, Daniel Gultsch 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 de.pixart.messenger.utils;
import android.text.Spannable;
import java.util.ArrayList;
import java.util.List;
public class CharSequenceUtils {
private static int getStartIndex(CharSequence input) {
int length = input.length();
int index = 0;
while (Character.isWhitespace(input.charAt(index))) {
++index;
if (index >= length) {
break;
}
}
return index;
}
private static int getEndIndex(CharSequence input) {
int index = input.length() - 1;
while (Character.isWhitespace(input.charAt(index))) {
--index;
if (index < 0) {
break;
}
}
return index;
}
public static CharSequence trim(CharSequence input) {
int begin = getStartIndex(input);
int end = getEndIndex(input);
if (begin > end) {
return "";
} else {
return StylingHelper.subSequence(input, begin, end + 1);
}
}
public static List<CharSequence> split(Spannable charSequence, char c) {
List<CharSequence> out = new ArrayList<>();
int begin = 0;
for (int i = 0; i < charSequence.length(); ++i) {
if (charSequence.charAt(i) == c) {
out.add(StylingHelper.subSequence(charSequence, begin, i));
begin = ++i;
}
}
if (begin < charSequence.length()) {
out.add(StylingHelper.subSequence(charSequence, begin, charSequence.length()));
}
return out;
}
}
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