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exp/html: more work on inBodyIM

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Reorder some cases.
Handle <pre>, <listing>, </form>, </li>, </dd>, </dt>, </h1>, </h2>,
</h3>, </h4>, </h5>, and </h6> tags.

Pass 6 additional tests.

R=golang-dev, nigeltao
CC=golang-dev
https://golang.org/cl/6089043
This commit is contained in:
Andrew Balholm 2012-04-21 09:20:38 +10:00 committed by Nigel Tao
parent 244706bd0f
commit 904c7c8e99
2 changed files with 104 additions and 58 deletions
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150
src/pkg/exp/html/parse.go
View File

@ -166,6 +166,31 @@ func (p *parser) clearStackToContext(s scope) {
}
}
// generateImpliedEndTags pops nodes off the stack of open elements as long as
// the top node has a tag name of dd, dt, li, option, optgroup, p, rp, or rt.
// If exceptions are specified, nodes with that name will not be popped off.
func (p *parser) generateImpliedEndTags(exceptions ...string) {
var i int
loop:
for i = len(p.oe) - 1; i >= 0; i-- {
n := p.oe[i]
if n.Type == ElementNode {
switch n.Data {
case "dd", "dt", "li", "option", "optgroup", "p", "rp", "rt":
for _, except := range exceptions {
if n.Data == except {
break loop
}
}
continue
}
}
break
}
p.oe = p.oe[:i+1]
}
// addChild adds a child node n to the top element, and pushes n onto the stack
// of open elements if it is an element node.
func (p *parser) addChild(n *Node) {
@ -673,6 +698,61 @@ func inBodyIM(p *parser) bool {
p.oe.pop()
}
p.addElement(p.tok.Data, p.tok.Attr)
case "pre", "listing":
p.popUntil(buttonScope, "p")
p.addElement(p.tok.Data, p.tok.Attr)
// The newline, if any, will be dealt with by the TextToken case.
p.framesetOK = false
case "form":
if p.form == nil {
p.popUntil(buttonScope, "p")
p.addElement(p.tok.Data, p.tok.Attr)
p.form = p.top()
}
case "li":
p.framesetOK = false
for i := len(p.oe) - 1; i >= 0; i-- {
node := p.oe[i]
switch node.Data {
case "li":
p.oe = p.oe[:i]
case "address", "div", "p":
continue
default:
if !isSpecialElement(node) {
continue
}
}
break
}
p.popUntil(buttonScope, "p")
p.addElement(p.tok.Data, p.tok.Attr)
case "dd", "dt":
p.framesetOK = false
for i := len(p.oe) - 1; i >= 0; i-- {
node := p.oe[i]
switch node.Data {
case "dd", "dt":
p.oe = p.oe[:i]
case "address", "div", "p":
continue
default:
if !isSpecialElement(node) {
continue
}
}
break
}
p.popUntil(buttonScope, "p")
p.addElement(p.tok.Data, p.tok.Attr)
case "plaintext":
p.popUntil(buttonScope, "p")
p.addElement(p.tok.Data, p.tok.Attr)
case "button":
p.popUntil(defaultScope, "button")
p.reconstructActiveFormattingElements()
p.addElement(p.tok.Data, p.tok.Attr)
p.framesetOK = false
case "a":
for i := len(p.afe) - 1; i >= 0 && p.afe[i].Type != scopeMarkerNode; i-- {
if n := p.afe[i]; n.Type == ElementNode && n.Data == "a" {
@ -725,56 +805,6 @@ func inBodyIM(p *parser) bool {
p.framesetOK = false
p.im = inSelectIM
return true
case "form":
if p.form == nil {
p.popUntil(buttonScope, "p")
p.addElement(p.tok.Data, p.tok.Attr)
p.form = p.top()
}
case "li":
p.framesetOK = false
for i := len(p.oe) - 1; i >= 0; i-- {
node := p.oe[i]
switch node.Data {
case "li":
p.popUntil(listItemScope, "li")
case "address", "div", "p":
continue
default:
if !isSpecialElement(node) {
continue
}
}
break
}
p.popUntil(buttonScope, "p")
p.addElement(p.tok.Data, p.tok.Attr)
case "dd", "dt":
p.framesetOK = false
for i := len(p.oe) - 1; i >= 0; i-- {
node := p.oe[i]
switch node.Data {
case "dd", "dt":
p.oe = p.oe[:i]
case "address", "div", "p":
continue
default:
if !isSpecialElement(node) {
continue
}
}
break
}
p.popUntil(buttonScope, "p")
p.addElement(p.tok.Data, p.tok.Attr)
case "plaintext":
p.popUntil(buttonScope, "p")
p.addElement(p.tok.Data, p.tok.Attr)
case "button":
p.popUntil(defaultScope, "button")
p.reconstructActiveFormattingElements()
p.addElement(p.tok.Data, p.tok.Attr)
p.framesetOK = false
case "optgroup", "option":
if p.top().Data == "option" {
p.oe.pop()
@ -856,15 +886,31 @@ func inBodyIM(p *parser) bool {
return false
}
return true
case "address", "article", "aside", "blockquote", "button", "center", "details", "dir", "div", "dl", "fieldset", "figcaption", "figure", "footer", "header", "hgroup", "listing", "menu", "nav", "ol", "pre", "section", "summary", "ul":
p.popUntil(defaultScope, p.tok.Data)
case "form":
node := p.form
p.form = nil
i := p.indexOfElementInScope(defaultScope, "form")
if node == nil || i == -1 || p.oe[i] != node {
// Ignore the token.
return true
}
p.generateImpliedEndTags()
p.oe.remove(node)
case "p":
if !p.elementInScope(buttonScope, "p") {
p.addElement("p", nil)
}
p.popUntil(buttonScope, "p")
case "li":
p.popUntil(listItemScope, "li")
case "dd", "dt":
p.popUntil(defaultScope, p.tok.Data)
case "h1", "h2", "h3", "h4", "h5", "h6":
p.popUntil(defaultScope, "h1", "h2", "h3", "h4", "h5", "h6")
case "a", "b", "big", "code", "em", "font", "i", "nobr", "s", "small", "strike", "strong", "tt", "u":
p.inBodyEndTagFormatting(p.tok.Data)
case "address", "article", "aside", "blockquote", "button", "center", "details", "dir", "div", "dl", "fieldset", "figcaption", "figure", "footer", "header", "hgroup", "listing", "menu", "nav", "ol", "pre", "section", "summary", "ul":
p.popUntil(defaultScope, p.tok.Data)
case "applet", "marquee", "object":
if p.popUntil(defaultScope, p.tok.Data) {
p.clearActiveFormattingElements()

12
src/pkg/exp/html/testlogs/tests19.dat.log
View File

@ -1,8 +1,8 @@
FAIL "<!doctype html><math><mn DefinitionUrl=\"foo\">"
PASS "<!doctype html><html></p><!--foo-->"
PASS "<!doctype html><head></head></p><!--foo-->"
FAIL "<!doctype html><body><p><pre>"
FAIL "<!doctype html><body><p><listing>"
PASS "<!doctype html><body><p><pre>"
PASS "<!doctype html><body><p><listing>"
PASS "<!doctype html><p><plaintext>"
PASS "<!doctype html><p><h1>"
PASS "<!doctype html><form><isindex>"
@ -19,9 +19,9 @@ FAIL "<!doctype html><ruby><div><p><rt>"
PASS "<!doctype html><math/><foo>"
PASS "<!doctype html><svg/><foo>"
PASS "<!doctype html><div></body><!--foo-->"
FAIL "<!doctype html><h1><div><h3><span></h1>foo"
PASS "<!doctype html><h1><div><h3><span></h1>foo"
PASS "<!doctype html><p></h3>foo"
FAIL "<!doctype html><h3><li>abc</h2>foo"
PASS "<!doctype html><h3><li>abc</h2>foo"
PASS "<!doctype html><table>abc<!--foo-->"
FAIL "<!doctype html><table> <!--foo-->"
PASS "<!doctype html><table> b <!--foo-->"
@ -46,8 +46,8 @@ PASS "<!doctype html><body><frameset>"
PASS "<!doctype html><p><frameset><frame>"
PASS "<!doctype html><p>a<frameset>"
FAIL "<!doctype html><p> <frameset><frame>"
FAIL "<!doctype html><pre><frameset>"
FAIL "<!doctype html><listing><frameset>"
PASS "<!doctype html><pre><frameset>"
PASS "<!doctype html><listing><frameset>"
PASS "<!doctype html><li><frameset>"
PASS "<!doctype html><dd><frameset>"
PASS "<!doctype html><dt><frameset>"