Safe Haskell	None
Language	Haskell98

Control.OperationalTransformation.Selection

Synopsis

Documentation

data Range Source

Range has anchor and head properties, which are zero-based indices into the document. The anchor is the side of the selection that stays fixed, head is the side of the selection where the cursor is. When both are equal, the range represents a cursor.

Constructors

Range
Fields rangeAnchor :: !Int rangeHead :: !Int

Instances

Eq Range
Ord Range
Read Range
Show Range
ToJSON Range
FromJSON Range
OTCursor Range TextOperation

newtype Selection Source

A selection consists of a list of ranges. Each range may represent a selected part of the document or a cursor in the document.

Constructors

Selection
Fields ranges :: [Range]

createCursor :: Int -> Selection Source

Create a selection that represents a cursor.

size :: Selection -> Int Source

Number of selected characters

somethingSelected :: Selection -> Bool Source

Does the selection contain any characters?

IsList Selection
Eq Selection
Ord Selection
Read Selection
Show Selection
ToJSON Selection
FromJSON Selection
Monoid Selection
OTCursor Selection TextOperation
type Item Selection = Range