Function ParseExpression

expr/parse.go:174–181

ParseExpression parse a single Expression, returning an Expression Node ParseExpression("5 * toint(item_name)")

(expressionText string)

//    ParseExpression("5 * toint(item_name)")
//
func ParseExpression(expressionText string) (Node, error) {
	l := lex.NewLexer(expressionText, lex.LogicalExpressionDialect)
	pager := NewLexTokenPager(l)
	t := newTree(pager)

	// Parser panics on unexpected syntax, convert this into an err
	return t.parse()
}

// MustParse parse a single Expression, returning an Expression Node
// and panics if it cannot be parsed