import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "^\\+[\\t ]\\S.*\\n(?:(?:[\\t ]{2})+[-*+] \\S.*\\n)+";
final String string = "__Advertisement :)__\n\n"
+ "```mermaid\n"
+ "graph TD\n"
+ " A[Christmas] -->|Get money| B(Go shopping)\n"
+ " B --> C{Let me think}\n"
+ " C -->|One| D[Laptop]\n"
+ " C -->|Two| E[iPhone]\n"
+ " C -->|Three| F[Car]\n"
+ "```\n\n"
+ "```mermaid\n"
+ "graph TD\n"
+ "A[Christmas] -->|Get money| B(Go shopping)\n"
+ "B --> C{Let me think}\n"
+ "C -->|One| D[Laptop]\n"
+ "C -->|Two| E[iPhone]\n"
+ "C -->|Three| F[Car]\n"
+ "click A \"index.html#link-clicked\" \"link test\"\n"
+ "click B testClick \"click test\"\n"
+ "```\n\n"
+ "- __[pica](https://nodeca.github.io/pica/demo/)__\n"
+ "- high quality and fast image resize in browser.\n"
+ "- __[babelfish](https://github.com/nodeca/babelfish/)__\n"
+ "- developer friendly i18n with plurals support and easy syntax.\n\n"
+ "You will like those projects!\n\n"
+ "---\n\n"
+ "# h1 Heading 8-)\n\n"
+ "## h2 Heading\n\n"
+ "### h3 Heading\n\n"
+ "#### h4 Heading\n\n"
+ "##### h5 Heading\n\n"
+ "###### h6 Heading\n\n"
+ "## Horizontal Rules\n\n"
+ "___\n\n"
+ "---\n\n"
+ "***\n\n\n"
+ "## Typographic replacements\n\n"
+ "Enable typographer option to see result.\n\n"
+ "(c) (C) (r) (R) (tm) (TM) (p) (P) +-\n\n"
+ "test.. test... test..... test?..... test!....\n\n"
+ "!!!!!! ???? ,, -- ---\n\n"
+ "\"Smartypants, double quotes\" and 'single quotes'\n\n\n"
+ "## Emphasis\n\n"
+ "**This is bold text**\n\n"
+ "__This is bold text__\n\n"
+ "*This is italic text*\n\n"
+ "_This is italic text_\n\n"
+ "~~Strikethrough~~\n\n\n"
+ "## Blockquotes\n\n\n"
+ "> Blockquotes can also be nested...\n"
+ ">> ...by using additional greater-than signs right next to each other...\n"
+ "> > > ...or with spaces between arrows.\n\n\n"
+ "## Lists\n\n"
+ "Unordered\n\n"
+ "+ Create a list by starting a line with `+`, `-`, or `*`\n"
+ "+ Sub-lists are made by indenting 2 spaces:\n"
+ " - Marker character change forces new list start:\n"
+ " * Ac tristique libero volutpat at\n"
+ " + Facilisis in pretium nisl aliquet\n"
+ " - Nulla volutpat aliquam velit\n"
+ "+ Very easy!\n\n"
+ "Ordered\n\n"
+ "1. Lorem ipsum dolor sit amet\n"
+ "2. Consectetur adipiscing elit\n"
+ "3. Integer molestie lorem at massa\n\n\n"
+ "1. You can use sequential numbers...\n"
+ "1. ...or keep all the numbers as `1.`\n\n"
+ "Start numbering with offset:\n\n"
+ "57. foo\n"
+ "1. bar\n\n\n"
+ "## Code [^first]\n\n"
+ "Inline `code`\n\n"
+ "Indented code\n\n"
+ " // Some comments\n"
+ " line 1 of code\n"
+ " line 2 of code\n"
+ " line 3 of code\n\n\n"
+ "Block code \"fences\"\n\n"
+ "```\n"
+ "Sample text here...\n"
+ "```\n\n"
+ "Syntax highlighting\n\n"
+ "``` js\n"
+ "var foo = function (bar) {\n"
+ " return bar++;\n"
+ "};\n\n"
+ "console.log(foo(5));\n"
+ "```\n\n"
+ "## Tables\n\n"
+ "| Option | Description |\n"
+ "| ------ | ----------- |\n"
+ "| data | path to data files to supply the data that will be passed into templates. |\n"
+ "| engine | engine to be used for processing templates. Handlebars is the default. |\n"
+ "| ext | extension to be used for dest files. |\n\n"
+ "Right aligned columns\n\n"
+ "| Option | Description |\n"
+ "| ------:| -----------:|\n"
+ "| data | path to data files to supply the data that will be passed into templates. |\n"
+ "| engine | engine to be used for processing templates. Handlebars is the default. |\n"
+ "| ext | extension to be used for dest files. |\n\n\n"
+ "## Links\n\n"
+ "[link text](http://dev.nodeca.com)\n\n"
+ "[link with title](http://nodeca.github.io/pica/demo/ \"title text!\")\n\n"
+ "Autoconverted link https://github.com/nodeca/pica (enable linkify to see)\n\n\n"
+ "## Images\n\n"
+ "\n"
+ "![Stormtroopocat](https://octodex.github.com/images/stormtroopocat.jpg \"The Stormtroopocat\")\n\n"
+ "Like links, Images also have a footnote style syntax \n\n"
+ "![Alt text][id]\n\n"
+ "With a reference later in the document defining the URL location:\n\n"
+ "[id]: https://octodex.github.com/images/dojocat.jpg \"The Dojocat\"\n\n\n"
+ "## Plugins\n\n"
+ "The killer feature of `markdown-it` is very effective support of\n"
+ "[syntax plugins](https://www.npmjs.org/browse/keyword/markdown-it-plugin).\n\n\n"
+ "### [Emojies](https://github.com/markdown-it/markdown-it-emoji)\n\n"
+ "> Classic markup: :wink: :crush: :cry: :tear: :laughing: :yum:\n"
+ ">\n"
+ "> Shortcuts (emoticons): :-) :-( 8-) ;)\n\n"
+ "see [how to change output](https://github.com/markdown-it/markdown-it-emoji#change-output) with twemoji.\n\n\n"
+ "### [Subscript](https://github.com/markdown-it/markdown-it-sub) / [Superscript](https://github.com/markdown-it/markdown-it-sup)\n\n"
+ "- 19^th^\n"
+ "- H~2~O\n\n\n"
+ "### [\\<ins>](https://github.com/markdown-it/markdown-it-ins)\n\n"
+ "++Inserted text++\n\n\n"
+ "### [\\<mark>](https://github.com/markdown-it/markdown-it-mark)\n\n"
+ "==Marked text==\n\n\n"
+ "### [Footnotes](https://github.com/markdown-it/markdown-it-footnote)\n\n"
+ "Footnote 1 link[^first].\n\n"
+ "Footnote 2 link[^second].\n\n"
+ "Inline footnote^[Text of inline footnote] definition.\n\n"
+ "Duplicated footnote reference[^second].\n\n"
+ "[^first]: Footnote **can have markup**\n"
+ " and multiple paragraphs.\n"
+ "[^second]: Footnote text.\n\n\n"
+ "### [Definition lists](https://github.com/markdown-it/markdown-it-deflist)\n\n"
+ "Term 1\n"
+ ": Definition 1\n"
+ "with lazy continuation.\n\n"
+ "Term 2 with *inline markup*\n"
+ ": Definition 2\n\n"
+ " { some code, part of Definition 2 }\n\n"
+ " Third paragraph of definition 2.\n\n"
+ "_Compact style:_\n\n"
+ "Term 1\n"
+ " ~ Definition 1\n\n"
+ "Term 2\n"
+ " ~ Definition 2a\n"
+ " ~ Definition 2b\n\n\n"
+ "### [Abbreviations](https://github.com/markdown-it/markdown-it-abbr)\n\n"
+ "This is HTML abbreviation example.\n"
+ "It converts \"HTML\", but keep intact partial entries like \"xxxHTMLyyy\" and so on.\n"
+ "*[HTML]: Hyper Text Markup Language\n\n"
+ "### [Custom containers](https://github.com/markdown-it/markdown-it-container)\n\n"
+ "::: warning\n"
+ "*here be dragons*\n"
+ ":::";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
final Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html