An UITextView with Syntax Highlighting and Pan-Gesture Navigation / Selection

The cursor can be navigated by panning left or right over the text view. To create a selection, or expand an existing one, a pan-to-zoom gesture can be used.

Syntax highlighting is controlled by the properties highlightDefinition and highlightTheme.

highlightDefinition is a mapping of hightlight identifiers to highlight regular expressions. For example:

@{@"number": @"[0-9]+",
  @"word":   @"[a-zA-Z]+"}

highlightTheme is a mapping of the same highlight identifiers to UIColors. For example:

@{@"number": [UIColor redColor],
  @"word:    [UIColor greenColor]}

By default, a nice highlighting theme is included and the highlight definition is read from a file in the bundle called Syntax.plist.