mirror of https://github.com/M66B/FairEmail.git
63 lines
2.2 KiB
Java
63 lines
2.2 KiB
Java
package eu.faircode.email;
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/*
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This file is part of FairEmail.
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FairEmail is free software: you can redistribute it and/or modify
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it 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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FairEmail is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2018-2024 by Marcel Bokhorst (M66B)
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*/
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import com.vladsch.flexmark.html2md.converter.FlexmarkHtmlConverter;
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import com.vladsch.flexmark.util.data.DataHolder;
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import com.vladsch.flexmark.util.data.MutableDataSet;
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import org.commonmark.Extension;
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import org.commonmark.ext.gfm.strikethrough.StrikethroughExtension;
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import org.commonmark.ext.gfm.tables.TablesExtension;
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import org.commonmark.node.Node;
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import org.commonmark.parser.Parser;
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import org.commonmark.renderer.html.HtmlRenderer;
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import java.util.Arrays;
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import java.util.List;
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public class Markdown {
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static String toHtml(String markdown) {
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markdown = markdown.replace('\u00a0', ' ');
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List<Extension> extensions = Arrays.asList(
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TablesExtension.create(),
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StrikethroughExtension.create());
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Parser p = Parser.builder()
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.extensions(extensions)
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.build();
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Node d = p.parse(markdown);
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HtmlRenderer r = HtmlRenderer.builder()
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.extensions(extensions)
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.build();
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return r.render(d);
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}
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static String fromHtml(String html) {
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// https://github.com/vsch/flexmark-java/wiki/Extensions#html-to-markdown
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DataHolder options = new MutableDataSet()
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.set(FlexmarkHtmlConverter.SETEXT_HEADINGS, false)
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.toImmutable();
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String markdown = FlexmarkHtmlConverter.builder(options)
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.build()
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.convert(html);
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return markdown.replaceAll("\n\n\\s+<!-- -->\n", "");
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}
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}
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