1 /*
2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package org.openjdk.skara.bots.mlbridge;
24
25 import java.util.regex.Pattern;
26
27 public class TextToMarkdown {
28 private static final Pattern punctuationPattern = Pattern.compile("([!\"#$%&'()*+,\\-./:;<=?@\\[\\]^_`{|}~])", Pattern.MULTILINE);
29 private static final Pattern indentedPattern = Pattern.compile("^ {4}", Pattern.MULTILINE);
30
31 private static String escapeBackslashes(String text) {
32 return text.replace("\\", "\\\\");
33 }
34
35 private static String escapePunctuation(String text) {
36 var punctuationMatcher = punctuationPattern.matcher(text);
37 return punctuationMatcher.replaceAll(mr -> "\\\\" + mr.group(1));
38 }
39
40 private static String escapeIndention(String text) {
41 var indentedMatcher = indentedPattern.matcher(text);
42 return indentedMatcher.replaceAll("  ");
43 }
44
45 static String escapeFormatting(String text) {
46 return escapeIndention(escapePunctuation(escapeBackslashes(text)));
47 }
48 }