clifmt/util.go

23 lines
374 B
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package clifmt
import (
"regexp"
)
var esc = regexp.MustCompile(`(?m)\[(?:\d+;)*\d+m`)
// displaySize returns the real size escaping special characters
func displaySize(s string) int {
// 1. get actual size
size := len(s)
// 2. get all terminal coloring matches
matches := esc.FindAllString(s, -1)
for _, m := range matches {
size -= len(m)
}
return size
}