/css/selectors/selectors.go

 1package selectors
 2
 3import ()
 4
 5type selector interface {
 6	String() string
 7}
 8
 9type SimpleSelector struct {
10	type_val string
11	extra_val string
12	sealed bool
13}
14
15func (s *SimpleSelector) String() string {
16	if s.extra_val == "" {
17		return s.type_val
18	}
19	if s.type_val == "*" {
20		return s.extra_val
21	}
22	
23	return s.type_val + s.extra_val
24}
25
26func (s *SimpleSelector) Sealed() bool {
27	return s.sealed
28}
29
30func Universal() *SimpleSelector {
31	return &SimpleSelector{type_val:"*"}
32}
33
34func Type(s string) *SimpleSelector {
35	return &SimpleSelector{type_val:s}
36}
37
38func Attribute(s string) *SimpleSelector {
39	return &SimpleSelector{type_val:"*", extra_val:"[" + s + "]"}
40}
41
42func AttributeSpaceList(s, b string) *SimpleSelector {
43	return Attribute(s + "~=\"" + b + "\"")
44}
45
46func AttributeEquals(s, b string) *SimpleSelector {
47	return Attribute(s + "=\"" + b + "\"")
48}
49
50func AttributeBegins(s, b string) *SimpleSelector {
51	return Attribute(s + "^=\"" + b + "\"")
52}
53
54func AttributeEnds(s, b string) *SimpleSelector {
55	return Attribute(s + "$=\"" + b + "\"")
56}
57
58func AttributeSubstring(s, b string) *SimpleSelector {
59	return Attribute(s + "*=\"" + b + "\"")
60}
61
62func AttributeHyphenList(s, b string) *SimpleSelector {
63	return Attribute(s + "|=\"" + b + "\"")
64}
65
66func PseudoClass(s string) *SimpleSelector {
67	return &SimpleSelector{type_val:"*", extra_val: ":" + s}
68}
69
70func PseudoElement(s string) *SimpleSelector {
71	return &SimpleSelector{type_val:"*", extra_val: "::" + s}
72}
73
74func Id(id string) *SimpleSelector {
75	return &SimpleSelector{type_val:"", extra_val: "#" + id}
76}
77
78func Not(s *SimpleSelector) *SimpleSelector {
79	s.sealed = true
80	return &SimpleSelector{}
81}
82
83type GroupSelector struct {
84
85}