utfstrings

package

v0.0.6 Latest Latest Go to latest Published: Nov 22, 2018 License: MIT Imports: 1 Imported by: 0

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Repository

github.com/spy16/parens

Documentation ¶

Constants ¶

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const EOS = int32(-1)

EOS is returned when cursor reaches the end of the string.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Cursor ¶

type Cursor struct {
	Selection

	String string
}

Cursor provides functions to navigate a Unicode string.

func (*Cursor) Backup ¶

func (cur *Cursor) Backup()

Backup steps back one rune. Can only be called once per call of next.

func (Cursor) Build ¶

func (cur Cursor) Build(move MoveFunc) string

Build will build a string from the cursor. move will be called before every rune and move can advance the cursor one or more times to ignore runes. Build will always start from the beginning of the string. This will not modify the original cursor since it has value receiver.

func (*Cursor) Next ¶

func (cur *Cursor) Next() rune

Next returns the next rune in the string.

func (*Cursor) Peek ¶

func (cur *Cursor) Peek() rune

Peek returns but does not consume the next rune in the string.

type MoveFunc ¶

type MoveFunc func(cur *Cursor)

MoveFunc is called by Build. MoveFunc can advance the cursor one or more times. Once this function returns Build will start from the current position and consume one rune and call MoveFunc again.

type Selection ¶

type Selection struct {
	Start int
	Pos   int
	// contains filtered or unexported fields
}

Selection represents the current selection in the cursor.

Source Files ¶

View all Source files

cursor.go

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