Safe Haskell	None
Language	Haskell98

Control.OperationalTransformation.Text

Contents

Simple text operations

Synopsis

Simple text operations

data Action Source

An action changes the text at the current position or advances the cursor.

Constructors

Retain !Int	Skip the next n characters.
Insert !Text	Insert the given text at the current position.
Delete !Int	Delete the next n characters.

Instances

Eq Action
Read Action
Show Action
ToJSON Action
FromJSON Action
Binary Action
Typeable * Action

newtype TextOperation Source

An edit on plain text documents. An operation consists of multiple actions that change the document at the current cursor position or advance the cursor. After applying all actions, the cursor must be at the end of the document.

Constructors

TextOperation [Action]

invertOperation Source

Arguments

:: TextOperation	An operation
-> Text	Document to apply the operation to
-> Either String TextOperation

Computes the inverse of an operation. Useful for implementing undo.

IsList TextOperation
Eq TextOperation
Read TextOperation
Show TextOperation
ToJSON TextOperation
FromJSON TextOperation
Binary TextOperation
OTComposableOperation TextOperation
OTOperation TextOperation
Typeable * TextOperation
OTCursor Selection TextOperation
OTCursor Range TextOperation
OTSystem Text TextOperation
type Item TextOperation = Action