Method parseEqualityExpr

parse.go:213–230

EqualityExpr ::= RelationalExpr | EqualityExpr '=' RelationalExpr | EqualityExpr '!=' RelationalExpr

(n node)

// EqualityExpr ::= RelationalExpr | EqualityExpr '=' RelationalExpr | EqualityExpr '!=' RelationalExpr
func (p *parser) parseEqualityExpr(n node) node {
	opnd := p.parseRelationalExpr(n)
Loop:
	for {
		var op string
		switch p.r.typ {
		case itemEq:
			op = "="
		case itemNe:
			op = "!="
		default:
			break Loop
		}
		p.next()
		opnd = newOperatorNode(op, opnd, p.parseRelationalExpr(n))
	}
	return opnd
}

// RelationalExpr ::= AdditiveExpr	| RelationalExpr '<' AdditiveExpr | RelationalExpr '>' AdditiveExpr
//