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Syntax Highlighting with PrismJS Prism is a lightweight, extensible syntax highlighter that can be used when working with code blocks in markdown files in blog posts.
Prism is a lightweight, extensible syntax highlighter, built with modern web standards in mind. It's used in millions of websites, including some of those you visit daily.
Go to the Prism project homepage (https://prismjs.com/), then to the download page as before, and generate a script file selecting only the coding languages you are interested in; don't reselect any plugins. Then download the JavaScript file. Remember: do not download the CSS file, only the prism. js file.
Syntax highlighting is one strategy to improve the readability and context of the text; especially for code that spans several pages. The reader can easily ignore large sections of comments or code, depending on what they are looking for. Syntax highlighting also helps programmers find errors in their program.
Something like JSyntaxPane, perhaps?
A very simple to use and extend JEditorKit that supports few languages. The main goal is to make it easy to have nice looking Java Swing Editors with support for Syntax Highlighting.
What about RSyntaxTextArea? It uses a modified BSD license.
You first should think about using a common parser to create an AST (abstract syntax tree) from the sources. There are some tools around, first I find googling the internet was javaparser. It looks like this parser also records line numbers and columns, so the AST from javaparser can be a nice model for the editor.
Just process the tree, define colors for the AST node types and print it.
Might want to look at an existing editor (Notepad++ for example - http://notepad-plus.sourceforge.net/uk/site.htm) and see how user-defined syntax highlighting is done (oneo of the plugins to check - Gmod 10 Lua Syntax Highlighter). I'd wager that the Java (and other languages) are done similarly...
You should check Google's prettify.js out. Some pretty neat tricks in there, and you might get a more robust feel for syntax highlighting.
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