Method scan

internal/revision/parser.go:121–132

scan returns the next token from the underlying scanner or the last scanned token if an unscan was requested

()

// scan returns the next token from the underlying scanner
// or the last scanned token if an unscan was requested
func (p *Parser) scan() (token, string, error) {
	if p.unreadLastChar {
		p.unreadLastChar = false
		return p.currentParsedChar.tok, p.currentParsedChar.lit, nil
	}

	tok, lit, err := p.s.scan()

	p.currentParsedChar.tok, p.currentParsedChar.lit = tok, lit

	return tok, lit, err
}

// unscan pushes the previously read token back onto the buffer.
func (p *Parser) unscan() { p.unreadLastChar = true }