width

package

v0.2.16 Latest Latest Go to latest Published: Sep 5, 2023 License: LGPL-3.0 Imports: 3 Imported by: 0

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Repository

github.com/puellanivis/breton

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Open Source Insights

Documentation ¶

Constants ¶

This section is empty.

Variables ¶

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var AdditionalZeroWidth = &unicode.RangeTable{
	R16: []unicode.Range16{
		{0x1160, 0x11FF, 1},
	},
}

AdditionalZeroWidth is a Unicode Range of expected zero-width glyphs outside of Cf, Mn, and Me.

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var AmbiguousIsWide = false

AmbiguousIsWide sets if an unknown ambiguous character is assumed to be width == 2.

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var DoubleWidth = &unicode.RangeTable{
	R32: []unicode.Range32{
		{Lo: 0x1F030, Hi: 0x1F061, Stride: 1},
		{Lo: 0x1F100, Hi: 0x1F1FF, Stride: 1},
		{Lo: 0x1F200, Hi: 0x1F2FF, Stride: 1},
		{Lo: 0x1F300, Hi: 0x1F5FF, Stride: 1},
		{Lo: 0x1F600, Hi: 0x1F64F, Stride: 1},
		{Lo: 0x1F680, Hi: 0x1F6FF, Stride: 1},
		{Lo: 0x1F900, Hi: 0x1F9FF, Stride: 1},
	},
}

DoubleWidth is a Unicode Range that can be safely assumed to be Wide, even if not EastAsian{Wide,Fullwidth}.

View Source

var ZeroWidth = rangetable.Merge(unicode.Cf, unicode.Mn, unicode.Me, AdditionalZeroWidth)

ZeroWidth is a Unicode Range that can be expected to be zero-width glyphs on a terminal.

Functions ¶

func Rune ¶

func Rune(r rune) int

Rune returns the expected display width of a rune. The logic largely matches what PuTTY does.

Control Characters other than NUL return a value of -1.

func String ¶

func String(s string) int

String returns the sum display length expected of the string given.

If any rune in the string returns a width of -1, this function will return -1.

Types ¶

This section is empty.

Source Files ¶

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