87 lines
2.8 KiB
Java
87 lines
2.8 KiB
Java
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/*
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* Copyright (c) 2018, Daniel Gultsch All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package eu.siacs.conversations.utils;
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import android.text.Spannable;
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import java.util.ArrayList;
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import java.util.List;
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public class CharSequenceUtils {
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private static int getStartIndex(CharSequence input) {
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int length = input.length();
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int index = 0;
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while (Character.isWhitespace(input.charAt(index))) {
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++index;
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if (index >= length) {
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break;
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}
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}
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return index;
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}
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private static int getEndIndex(CharSequence input) {
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int index = input.length() - 1;
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while (Character.isWhitespace(input.charAt(index))) {
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--index;
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if (index < 0) {
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break;
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}
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}
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return index;
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}
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public static CharSequence trim(CharSequence input) {
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int begin = getStartIndex(input);
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int end = getEndIndex(input);
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if (begin > end) {
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return "";
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} else {
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return StylingHelper.subSequence(input, begin, end + 1);
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}
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}
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public static List<CharSequence> split(Spannable charSequence, char c) {
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List<CharSequence> out = new ArrayList<>();
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int begin = 0;
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for (int i = 0; i < charSequence.length(); ++i) {
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if (charSequence.charAt(i) == c) {
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out.add(StylingHelper.subSequence(charSequence, begin, i));
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begin = ++i;
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}
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}
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if (begin < charSequence.length()) {
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out.add(StylingHelper.subSequence(charSequence, begin, charSequence.length()));
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}
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return out;
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}
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}
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