Collaboration-oriented websites require a human-friendly markup language for easy entry of formatted text in forum posts, wiki pages, blogs, comments, etc. Seam provides the <s:formattedText/> control for display of formatted text that conforms to the Seam Text language. Seam Text is implemented using an ANTLR-based parser. You don't need to know anything about ANTLR to use it, however.
Here is a simple example:
It's easy to make *bold text*, /italic text/, |monospace|, ~deleted text~, super^scripts^ or _underlines_.
If we display this using <s:formattedText/>, we will get the following HTML produced:
<p> It's easy to make <b>bold text</b>, <i>italic text</i>, <tt>monospace</tt> <del>deleted text</del>, super<sup>scripts</sup> or <u>underlines</u>. </p>
We can use a blank line to indicate a new paragraph, and + to indicate a heading:
+This is a big heading You /must/ have some text following a heading! ++This is a smaller heading This is the first paragraph. We can split it across multiple lines, but we must end it with a blank line. This is the second paragraph.
(Note that a simple newline is ignored, you need an additional blank line to wrap text into a new paragraph.) This is the HTML that results:
<h1>This is a big heading</h1> <p> You <i>must</i> have some text following a heading! </p> <h2>This is a smaller heading</h2> <p> This is the first paragraph. We can split it across multiple lines, but we must end it with a blank line. </p> <p> This is the second paragraph. </p>
Ordered lists are created using the # character. Unordered lists use the = character:
An ordered list: #first item #second item #and even the /third/ item An unordered list: =an item =another item
<p> An ordered list: </p> <ol> <li>first item</li> <li>second item</li> <li>and even the <i>third</i> item</li> </ol> <p> An unordered list: </p> <ul> <li>an item</li> <li>another item</li> </ul>
Quoted sections should be surrounded in double quotes:
The other guy said: "Nyeah nyeah-nee /nyeah/ nyeah!" But what do you think he means by "nyeah-nee"?
<p> The other guy said: </p> <q>Nyeah nyeah-nee <i>nyeah</i> nyeah!</q> <p> But what do you think he means by <q>nyeah-nee</q>? </p>
Special characters such as *, | and #, along with HTML characters such as <, > and & may be escaped using \:
You can write down equations like 2\*3\=6 and HTML tags like \<body\> using the escape character: \\.
<p> You can write down equations like 2*3=6 and HTML tags like <body> using the escape character: \. </p>
And we can quote code blocks using backticks:
My code doesn't work: `for (int i=0; i<100; i--) { doSomething(); }` Any ideas?
<p> My code doesn't work: </p> <pre>for (int i=0; i<100; i--) { doSomething(); }</pre> <p> Any ideas? </p>
A link may be created using the following syntax:
Go to the Seam website at [=>http://jboss.com/products/seam].
Or, if you want to specify the text of the link:
Go to [the Seam website=>http://jboss.com/products/seam].
For advanced users, it is even possible to customize the Seam Text parser to understand wikiword links written using this syntax.
Text may even include a certain limited subset of HTML (don't worry, the subset is chosen to be safe from cross-site scripting attacks). This is useful for creating links:
You might want to link to <a href="http://jboss.com/products/seam">something cool</a>, or even include an image: <img src="/logo.jpg"/>
And for creating tables:
<table> <tr><td>First name:</td><td>Gavin</td></tr> <tr><td>Last name:</td><td>King</td></tr> </table>
But you can do much more if you want!