Function LastLexicalToken

pkg/sql/scanner/scan.go:1165–1176

LastLexicalToken returns the last lexical token. If the string has no lexical tokens, returns 0 and ok=false.

(sql string)

// LastLexicalToken returns the last lexical token. If the string has no lexical
// tokens, returns 0 and ok=false.
func LastLexicalToken(sql string) (lastTok int, ok bool) {
	var s SQLScanner
	var lval fakeSym
	s.Init(sql)
	for {
		last := lval.ID()
		s.Scan(&lval)
		if lval.ID() == 0 {
			return int(last), last != 0
		}
	}
}

// FirstLexicalToken returns the first lexical token.
// Returns 0 if there is no token.