I'm writing a source-code editor in Java (for Java source code), and I'd like to add simple syntax highlighting (distinctive coloring for keywords would suffice). Any suggestions?
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.
http://www.neathighlighter.com/ is a good JavaScript highlighter
来源：https://stackoverflow.com/questions/864688/where-can-i-find-a-syntax-highlighting-library-for-java