Arc Welder is a little text editor written in arc, using rainbow and java's swing libraries to provide graphics. So far, it boasts - syntax highlighting
- paren matching (amazing how much little things matter)
- context help (with the cursor on a symbol, hit f1 to show help gathered by anarki's help system)
- htmlification so you can easily post arc snippets to your blog
- pretty print (using pprint.arc shipped with arc)
- eval selection
Colorizing is slow, painfully so for large files. It could be argued that this encourages the good practice of writing short files. But I would like it to be faster.It's still full of bugs, and hangs sometimes (especially if you have unbalanced parens. It's pre-alpha, pre-preview software. It might eat all your files. It has no search function, and needs a heap of other stuff too. What's important for experienced lisp users in an IDE? I've been hooked on intellij for the last 5 years so I'm spoilt ... I've posted instructions for building and running welder at http://github.com/conanite/rainbow/wikis/home , which I'll update as it changes. | 
