package runewidth

import "zgo.at/runewidth"

Index ¶

• Variables
• func CreateLUT()
• func IsAmbiguousWidth(r rune) bool
• func IsEastAsian() bool
• func IsNeutralWidth(r rune) bool
• func RuneWidth(r rune) int
• type Condition
• func NewCondition() *Condition
• func (c *Condition) CreateLUT()
• func (c *Condition) RuneWidth(r rune) int

Variables ¶

var (
	// EastAsianWidth will be set true if the current locale is CJK
	EastAsianWidth bool

	// StrictEmojiNeutral should be set false if handle broken fonts
	StrictEmojiNeutral bool = true

	// DefaultCondition is a condition in current locale
	DefaultCondition = &Condition{
		EastAsianWidth:     false,
		StrictEmojiNeutral: true,
	}
)

Functions ¶

func CreateLUT ¶

func CreateLUT()

CreateLUT will create an in-memory lookup table of 557055 bytes for faster operation. This should not be called concurrently with other operations.

func IsAmbiguousWidth ¶

func IsAmbiguousWidth(r rune) bool

IsAmbiguousWidth returns whether is ambiguous width or not.

func IsEastAsian ¶

func IsEastAsian() bool

IsEastAsian return true if the current locale is CJK

func IsNeutralWidth ¶

func IsNeutralWidth(r rune) bool

IsNeutralWidth returns whether is neutral width or not.

func RuneWidth ¶

func RuneWidth(r rune) int

RuneWidth returns the number of cells in r. See http://www.unicode.org/reports/tr11/

Types ¶

type Condition ¶

type Condition struct {
	EastAsianWidth     bool
	StrictEmojiNeutral bool
	// contains filtered or unexported fields
}

Condition have flag EastAsianWidth whether the current locale is CJK or not.

func NewCondition ¶

func NewCondition() *Condition

NewCondition return new instance of Condition which is current locale.

func (*Condition) CreateLUT ¶

func (c *Condition) CreateLUT()

CreateLUT will create an in-memory lookup table of 557056 bytes for faster operation. This should not be called concurrently with other operations on c. If options in c is changed, CreateLUT should be called again.

func (*Condition) RuneWidth ¶

func (c *Condition) RuneWidth(r rune) int

RuneWidth returns the number of cells in r. See http://www.unicode.org/reports/tr11/

Source Files ¶

runewidth.go runewidth_posix.go runewidth_table.go

Directories ¶