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-rw-r--r--vendor/golang.org/x/net/html/const.go10
-rw-r--r--vendor/golang.org/x/net/html/parse.go132
2 files changed, 78 insertions, 64 deletions
diff --git a/vendor/golang.org/x/net/html/const.go b/vendor/golang.org/x/net/html/const.go
index 5eb7c5a..a3a918f 100644
--- a/vendor/golang.org/x/net/html/const.go
+++ b/vendor/golang.org/x/net/html/const.go
@@ -97,8 +97,16 @@ func isSpecialElement(element *Node) bool {
switch element.Namespace {
case "", "html":
return isSpecialElementMap[element.Data]
+ case "math":
+ switch element.Data {
+ case "mi", "mo", "mn", "ms", "mtext", "annotation-xml":
+ return true
+ }
case "svg":
- return element.Data == "foreignObject"
+ switch element.Data {
+ case "foreignObject", "desc", "title":
+ return true
+ }
}
return false
}
diff --git a/vendor/golang.org/x/net/html/parse.go b/vendor/golang.org/x/net/html/parse.go
index d23e05e..64a5793 100644
--- a/vendor/golang.org/x/net/html/parse.go
+++ b/vendor/golang.org/x/net/html/parse.go
@@ -209,27 +209,6 @@ loop:
p.oe = p.oe[:i+1]
}
-// generateAllImpliedEndTags pops nodes off the stack of open elements as long as
-// the top node has a tag name of caption, colgroup, dd, div, dt, li, optgroup, option, p, rb,
-// rp, rt, rtc, span, tbody, td, tfoot, th, thead or tr.
-func (p *parser) generateAllImpliedEndTags() {
- var i int
- for i = len(p.oe) - 1; i >= 0; i-- {
- n := p.oe[i]
- if n.Type == ElementNode {
- switch n.DataAtom {
- // TODO: remove this divergence from the HTML5 spec
- case a.Caption, a.Colgroup, a.Dd, a.Div, a.Dt, a.Li, a.Optgroup, a.Option, a.P, a.Rb,
- a.Rp, a.Rt, a.Rtc, a.Span, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:
- 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) {
@@ -276,7 +255,7 @@ func (p *parser) fosterParent(n *Node) {
}
}
- if template != nil && (table == nil || j < i) {
+ if template != nil && (table == nil || j > i) {
template.AppendChild(n)
return
}
@@ -491,6 +470,10 @@ func (p *parser) resetInsertionMode() {
case a.Table:
p.im = inTableIM
case a.Template:
+ // TODO: remove this divergence from the HTML5 spec.
+ if n.Namespace != "" {
+ continue
+ }
p.im = p.templateStack.top()
case a.Head:
// TODO: remove this divergence from the HTML5 spec.
@@ -679,11 +662,16 @@ func inHeadIM(p *parser) bool {
if !p.oe.contains(a.Template) {
return true
}
- p.generateAllImpliedEndTags()
- if n := p.oe.top(); n.DataAtom != a.Template {
- return true
+ // TODO: remove this divergence from the HTML5 spec.
+ //
+ // See https://bugs.chromium.org/p/chromium/issues/detail?id=829668
+ p.generateImpliedEndTags()
+ for i := len(p.oe) - 1; i >= 0; i-- {
+ if n := p.oe[i]; n.Namespace == "" && n.DataAtom == a.Template {
+ p.oe = p.oe[:i]
+ break
+ }
}
- p.popUntil(defaultScope, a.Template)
p.clearActiveFormattingElements()
p.templateStack.pop()
p.resetInsertionMode()
@@ -860,9 +848,13 @@ func inBodyIM(p *parser) bool {
// The newline, if any, will be dealt with by the TextToken case.
p.framesetOK = false
case a.Form:
- if p.oe.contains(a.Template) || p.form == nil {
- p.popUntil(buttonScope, a.P)
- p.addElement()
+ if p.form != nil && !p.oe.contains(a.Template) {
+ // Ignore the token
+ return true
+ }
+ p.popUntil(buttonScope, a.P)
+ p.addElement()
+ if !p.oe.contains(a.Template) {
p.form = p.top()
}
case a.Li:
@@ -996,6 +988,14 @@ func inBodyIM(p *parser) bool {
p.acknowledgeSelfClosingTag()
p.popUntil(buttonScope, a.P)
p.parseImpliedToken(StartTagToken, a.Form, a.Form.String())
+ if p.form == nil {
+ // NOTE: The 'isindex' element has been removed,
+ // and the 'template' element has not been designed to be
+ // collaborative with the index element.
+ //
+ // Ignore the token.
+ return true
+ }
if action != "" {
p.form.Attr = []Attribute{{Key: "action", Val: action}}
}
@@ -1070,13 +1070,7 @@ func inBodyIM(p *parser) bool {
p.acknowledgeSelfClosingTag()
}
return true
- case a.Frame:
- // TODO: remove this divergence from the HTML5 spec.
- if p.oe.contains(a.Template) {
- p.addElement()
- return true
- }
- case a.Caption, a.Col, a.Colgroup, a.Head, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:
+ case a.Caption, a.Col, a.Colgroup, a.Frame, a.Head, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:
// Ignore the token.
default:
p.reconstructActiveFormattingElements()
@@ -1098,12 +1092,13 @@ func inBodyIM(p *parser) bool {
p.popUntil(defaultScope, p.tok.DataAtom)
case a.Form:
if p.oe.contains(a.Template) {
- if !p.oe.contains(a.Form) {
+ i := p.indexOfElementInScope(defaultScope, a.Form)
+ if i == -1 {
// Ignore the token.
return true
}
p.generateImpliedEndTags()
- if p.tok.DataAtom == a.Form {
+ if p.oe[i].DataAtom != a.Form {
// Ignore the token.
return true
}
@@ -1269,12 +1264,6 @@ func (p *parser) inBodyEndTagFormatting(tagAtom a.Atom) {
switch commonAncestor.DataAtom {
case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr:
p.fosterParent(lastNode)
- case a.Template:
- // TODO: remove namespace checking
- if commonAncestor.Namespace == "html" {
- commonAncestor = commonAncestor.LastChild
- }
- fallthrough
default:
commonAncestor.AppendChild(lastNode)
}
@@ -1346,9 +1335,6 @@ func textIM(p *parser) bool {
// Section 12.2.6.4.9.
func inTableIM(p *parser) bool {
switch p.tok.Type {
- case ErrorToken:
- // Stop parsing.
- return true
case TextToken:
p.tok.Data = strings.Replace(p.tok.Data, "\x00", "", -1)
switch p.oe.top().DataAtom {
@@ -1443,6 +1429,8 @@ func inTableIM(p *parser) bool {
case DoctypeToken:
// Ignore the token.
return true
+ case ErrorToken:
+ return inBodyIM(p)
}
p.fosterParenting = true
@@ -1545,6 +1533,8 @@ func inColumnGroupIM(p *parser) bool {
case a.Template:
return inHeadIM(p)
}
+ case ErrorToken:
+ return inBodyIM(p)
}
if p.oe.top().DataAtom != a.Colgroup {
return true
@@ -1709,9 +1699,6 @@ func inCellIM(p *parser) bool {
// Section 12.2.6.4.16.
func inSelectIM(p *parser) bool {
switch p.tok.Type {
- case ErrorToken:
- // Stop parsing.
- return true
case TextToken:
p.addText(strings.Replace(p.tok.Data, "\x00", "", -1))
case StartTagToken:
@@ -1775,6 +1762,8 @@ func inSelectIM(p *parser) bool {
case DoctypeToken:
// Ignore the token.
return true
+ case ErrorToken:
+ return inBodyIM(p)
}
return true
@@ -1841,15 +1830,26 @@ func inTemplateIM(p *parser) bool {
// Ignore the token.
return true
}
+ case ErrorToken:
+ if !p.oe.contains(a.Template) {
+ // Ignore the token.
+ return true
+ }
+ // TODO: remove this divergence from the HTML5 spec.
+ //
+ // See https://bugs.chromium.org/p/chromium/issues/detail?id=829668
+ p.generateImpliedEndTags()
+ for i := len(p.oe) - 1; i >= 0; i-- {
+ if n := p.oe[i]; n.Namespace == "" && n.DataAtom == a.Template {
+ p.oe = p.oe[:i]
+ break
+ }
+ }
+ p.clearActiveFormattingElements()
+ p.templateStack.pop()
+ p.resetInsertionMode()
+ return false
}
- if !p.oe.contains(a.Template) {
- // Ignore the token.
- return true
- }
- p.popUntil(defaultScope, a.Template)
- p.clearActiveFormattingElements()
- p.templateStack.pop()
- p.resetInsertionMode()
return false
}
@@ -1923,11 +1923,6 @@ func inFramesetIM(p *parser) bool {
p.acknowledgeSelfClosingTag()
case a.Noframes:
return inHeadIM(p)
- case a.Template:
- // TODO: remove this divergence from the HTML5 spec.
- //
- // See https://bugs.chromium.org/p/chromium/issues/detail?id=829668
- return inTemplateIM(p)
}
case EndTagToken:
switch p.tok.DataAtom {
@@ -2220,6 +2215,15 @@ func (p *parser) parse() error {
}
// Parse returns the parse tree for the HTML from the given Reader.
+//
+// It implements the HTML5 parsing algorithm
+// (https://html.spec.whatwg.org/multipage/syntax.html#tree-construction),
+// which is very complicated. The resultant tree can contain implicitly created
+// nodes that have no explicit <tag> listed in r's data, and nodes' parents can
+// differ from the nesting implied by a naive processing of start and end
+// <tag>s. Conversely, explicit <tag>s in r's data can be silently dropped,
+// with no corresponding node in the resulting tree.
+//
// The input is assumed to be UTF-8 encoded.
func Parse(r io.Reader) (*Node, error) {
p := &parser{
@@ -2241,6 +2245,8 @@ func Parse(r io.Reader) (*Node, error) {
// ParseFragment parses a fragment of HTML and returns the nodes that were
// found. If the fragment is the InnerHTML for an existing element, pass that
// element in context.
+//
+// It has the same intricacies as Parse.
func ParseFragment(r io.Reader, context *Node) ([]*Node, error) {
contextTag := ""
if context != nil {
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-26 15:31:41 +0000