sourcegraph/lib/output/visible_string_width.go at main · zeroows/sourcegraph · GitHub

16 lines (12 loc) · 523 Bytes

package output

import (

"github.com/grafana/regexp"

"github.com/mattn/go-runewidth"

)

// This regex is taken from here:

// https://github.com/acarl005/stripansi/blob/5a71ef0e047df0427e87a79f27009029921f1f9b/stripansi.go

const ansi = "[\u001B\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[a-zA-Z\\d]*)*)?\u0007)|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PRZcf-ntqry=><~]))"

var ansiRegex = regexp.MustCompile(ansi)

func visibleStringWidth(str string) int {

return runewidth.StringWidth(ansiRegex.ReplaceAllString(str, ""))

}

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