Method PeekBy

testing/generation/command_docs/scanner.go:65–70

PeekBy returns the next rune that is n positions from the current rune. Does not advance the scanner. Returns false if we are peeking beyond the source.

(n int)

// PeekBy returns the next rune that is n positions from the current rune. Does not advance the scanner. Returns false
// if we are peeking beyond the source.
func (scanner *Scanner) PeekBy(n int) (rune, bool) {
	if scanner.sourceIdx+n >= len(scanner.source) || scanner.sourceIdx+n < 0 {
		return 0, false
	}
	return scanner.source[scanner.sourceIdx+n], true
}

// PeekMatch returns whether the given string exactly matches runes starting after the current position. This is
// equivalent to calling PeekMatchOffset with an offset of 1.