Bluefish is a powerful editor targeted towards programmers and webdesigners, with many options to write websites, scripts and programming code. Bluefish supports many programming and markup languages, and it focuses on editing dynamic and interactive websites.

Bluefish - Programmers Power Tool

• Lightweight - Bluefish tries to be lean and clean
• Fast - Bluefish starts really quick even on a netbook.
• Very powerful search and replace.
• Snippets sidebar - specify custom dialogs, search and replace pattern.
• Integrate external filters of your liking, pipe your document (or just the current selected text) through sort, sed, awk or any custom script.
• Auto-recovery of changes in modified documents after a crash, kill or shutdown.
• Character map of all unicode characters (requires libgucharmap during compilation)

and much much more