Textastic

Textastic is a simple and fast text, code, and markup editor. With support for more than 80 source code and markup languages, it brings the powerful syntax coloring engine of the popular iOS code editor to the Mac:

• Syntax highlighting for more than 80 languages
• Compatible with TextMate syntax definitions and themes
• Code completion for HTML, CSS, JavaScript, PHP, C, and Objective-C
• Symbol list to quickly navigate in a file
• Tabs
• Auto Save and Versions
• iCloud document sync (OS X 10.8 Mountain Lion only)
• Ready for Retina displays

New features:

• added find in files functionality to the sidebar, including regular expression search
• Emmet - the essential toolkit for web developers - is now integrated into Textastic. Visit emmet.io for more information.
• balance brackets and quotes: automatically inserts a matching closing character when typing an opening brace or quote
• automatically indent based on syntax when typing
• added syntax definitions for Arduino, Batch files, Clojure, Fountain, Go, and Swift
• updated app icon
• added crash reporter
• ".command" files are now recognized as shell scripts
• added "show scope" command to show the scope at the cursor location
• the color of tab characters is now themeable

Fixed:

• rewrote detection of encoding/charset tags in XML and HTML files
• fixed underline drawing
• fixed a scrolling issue when clicking on the editor after using the Find command
• When the code completion list was visible and you then changed to another application, the window disappeared and only reappeared when you changed back to Textastic.
• many other bug fixes and improvements