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html: parse <body>, <base>, <link>, <meta>, and <title> tags inside page body

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Pass tests1.dat, test 87:
<body><body><base><link><meta><title><p></title><body><p></body>

| <html>
|   <head>
|   <body>
|     <base>
|     <link>
|     <meta>
|     <title>
|       "<p>"
|     <p>

Handling the last <body> tag requires correcting the original insertion mode in useTheRulesFor.

Also pass test 88:
<textarea><p></textarea>

R=nigeltao
CC=golang-dev
https://golang.org/cl/5364047
This commit is contained in:
Andrew Balholm 2011-11-08 17:55:17 +11:00 committed by Nigel Tao
parent b776b9e724
commit f2b602ed42
2 changed files with 31 additions and 2 deletions
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31
src/pkg/html/parse.go
View File

@ -275,7 +275,9 @@ type insertionMode func(*parser) (insertionMode, bool)
// Section 11.2.3.1, "using the rules for".
func useTheRulesFor(p *parser, actual, delegate insertionMode) (insertionMode, bool) {
im, consumed := delegate(p)
// TODO: do we need to update p.originalMode if it equals delegate?
if p.originalIM == delegate {
p.originalIM = actual
}
if im != delegate {
return im, consumed
}
@ -537,6 +539,23 @@ func afterHeadIM(p *parser) (insertionMode, bool) {
return inBodyIM, !implied
}
// copyAttributes copies attributes of src not found on dst to dst.
func copyAttributes(dst *Node, src Token) {
if len(src.Attr) == 0 {
return
}
attr := map[string]string{}
for _, a := range dst.Attr {
attr[a.Key] = a.Val
}
for _, a := range src.Attr {
if _, ok := attr[a.Key]; !ok {
dst.Attr = append(dst.Attr, a)
attr[a.Key] = a.Val
}
}
}
// Section 11.2.5.4.7.
func inBodyIM(p *parser) (insertionMode, bool) {
switch p.tok.Type {
@ -622,6 +641,16 @@ func inBodyIM(p *parser) (insertionMode, bool) {
}
p.reconstructActiveFormattingElements()
p.addElement(p.tok.Data, p.tok.Attr)
case "body":
if len(p.oe) >= 2 {
body := p.oe[1]
if body.Type == ElementNode && body.Data == "body" {
p.framesetOK = false
copyAttributes(body, p.tok)
}
}
case "base", "basefont", "bgsound", "command", "link", "meta", "noframes", "script", "style", "title":
return useTheRulesFor(p, inBodyIM, inHeadIM)
default:
// TODO.
p.addElement(p.tok.Data, p.tok.Attr)

2
src/pkg/html/parse_test.go
View File

@ -133,7 +133,7 @@ func TestParser(t *testing.T) {
n int
}{
// TODO(nigeltao): Process all the test cases from all the .dat files.
{"tests1.dat", 87},
{"tests1.dat", 89},
{"tests2.dat", 0},
{"tests3.dat", 0},
}