mirror of
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144 lines
3.9 KiB
Java
144 lines
3.9 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2023, Arnaud Roques
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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public class BackSlash {
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public static final String BS_BS_N = "\\n";
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public static final String NEWLINE = "\n";
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public static final char CHAR_NEWLINE = '\n';
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public static char hiddenNewLine() {
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return StringUtils.PRIVATE_BLOCK + BackSlash.CHAR_NEWLINE;
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}
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public static String convertHiddenNewLine(String s) {
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s = s.replaceAll("(?<!\\\\)\\\\n", "" + hiddenNewLine());
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s = s.replaceAll("\\\\\\\\n", "\\\\n");
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return s;
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}
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public static List<String> splitHiddenNewLine(String s) {
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return Arrays.asList(s.split("" + hiddenNewLine()));
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}
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public static String manageNewLine(String string) {
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return string.replace(hiddenNewLine(), BackSlash.CHAR_NEWLINE);
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}
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public static List<String> getWithNewlines(CharSequence s) {
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if (s == null) {
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return null;
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}
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final List<String> result = new ArrayList<>();
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final StringBuilder current = new StringBuilder();
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for (int i = 0; i < s.length(); i++) {
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final char c = s.charAt(i);
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if (c == '\\' && i < s.length() - 1) {
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final char c2 = s.charAt(i + 1);
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i++;
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if (c2 == 'n') {
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result.add(current.toString());
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current.setLength(0);
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} else if (c2 == 't') {
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current.append('\t');
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} else if (c2 == '\\') {
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current.append(c2);
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}
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} else {
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current.append(c);
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}
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}
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result.add(current.toString());
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return Collections.unmodifiableList(result);
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}
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public static String translateBackSlashes(CharSequence s) {
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if (s == null) {
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return null;
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}
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// final String tmps = s.toString();
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// if (tmps.indexOf('\\') == -1) {
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// return tmps;
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// }
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final StringBuilder result = new StringBuilder();
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for (int i = 0; i < s.length(); i++) {
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final char c = s.charAt(i);
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if (c == '\\' && i < s.length() - 1 && isEnglishLetterOfBackSlash(s.charAt(i + 1))) {
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result.append('\\');
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result.append(translateChar(s.charAt(i + 1)));
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i++;
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} else {
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result.append(c);
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}
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}
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return result.toString();
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}
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private static boolean isEnglishLetterOfBackSlash(char c) {
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return c == 'n';
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// return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
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}
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public static String untranslateBackSlashes(CharSequence s) {
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if (s == null) {
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return null;
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}
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final StringBuilder result = new StringBuilder();
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for (int i = 0; i < s.length(); i++) {
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char c = s.charAt(i);
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if (c > StringUtils.PRIVATE_BLOCK && c < '\uE07F') {
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c = (char) (c - StringUtils.PRIVATE_BLOCK);
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}
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result.append(c);
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}
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return result.toString();
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}
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private static char translateChar(char c) {
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if (c > 128) {
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throw new IllegalArgumentException();
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}
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return (char) (StringUtils.PRIVATE_BLOCK + c);
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}
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}
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