html/eq.go

package html

func eq2(t1, t2 Tag) bool {
	if Name(t1) != Name(t2) {
		return false
	}

	a1, a2 := AllAttributes(t1), AllAttributes(t2)
	if len(a1) != len(a2) {
		return false
	}

	for name := range a1 {
		v1 := a1[name]
		v2, ok := a2[name]
		if !ok || v1 != v2 {
			return false
		}
	}

	c1, c2 := Children(t1), Children(t2)
	if len(c1) != len(c2) {
		return false
	}

	for i := range c1 {
		ct1, ok1 := c1[i].(Tag)
		ct2, ok2 := c2[i].(Tag)
		if ok1 != ok2 {
			return false
		}

		if ok1 && !Eq(ct1, ct2) {
			return false
		}

		if !ok1 {
			continue
		}

		if c1[i] != c2[i] {
			return false
		}
	}

	return true
}

func eq(t ...Tag) bool {
	if len(t) < 2 {
		return true
	}

	if !eq2(t[0], t[1]) {
		return false
	}

	return eq(t[1:]...)
}