Function getRuneRange

pkg/htmltext/htmltext.go:141–149

getRuneRange returns the valid begin and end indexes of the runeText

(runeText []rune, offset, limit int)

// getRuneRange returns the valid begin and end indexes of the runeText
func getRuneRange(runeText []rune, offset, limit int) (begin, end int) {
	runeLen := len(runeText)

	limit = min(runeLen, max(0, limit))
	begin = min(runeLen, max(0, offset))
	end = min(runeLen, begin+limit)

	return
}

// FetchRangedExcerpt returns a ranged excerpt from the HTML string.
// Note: offset is a rune index, not a byte index