html: update inSelectIM and inSelectInTableIM for the latest spec

Fixes golang/go#27842 Change-Id: I06eb3c0c18be3566bd30a29fca5f3f7e6791d2cc Reviewed-on: https://go-review.googlesource.com/c/137275 Run-TryBot: Kunpei Sakai <namusyaka@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Nigel Tao <nigeltao@golang.org>

html: update inSelectIM and inSelectInTableIM for the latest spec
Fixes golang/go#27842 Change-Id: I06eb3c0c18be3566bd30a29fca5f3f7e6791d2cc Reviewed-on: https://go-review.googlesource.com/c/137275 Run-TryBot: Kunpei Sakai <namusyaka@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Nigel Tao <nigeltao@golang.org>
d26f9f9a · Kunpei Sakai · Nigel Tao · 4b62a64f · d26f9f9a · d26f9f9a
Commit d26f9f9a authored Sep 25, 2018 by Kunpei Sakai Committed by Nigel Tao Jan 25, 2019
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Showing with 35 additions and 6 deletions

parse.go html/parse.go +22 -6

parse_test.go html/parse_test.go +1 -0

select.dat html/testdata/go/select.dat +12 -0

No files found.
--- a/html/parse.go
+++ b/html/parse.go
@@ -1719,8 +1719,12 @@ func inSelectIM(p *parser) bool {
 			}
 			p.addElement()
 		case a.Select:
-			p.tok.Type = EndTagToken
-			return false
+			if p.popUntil(selectScope, a.Select) {
+				p.resetInsertionMode()
+			} else {
+				// Ignore the token.
+				return true
+			}
 		case a.Input, a.Keygen, a.Textarea:
 			if p.elementInScope(selectScope, a.Select) {
 				p.parseImpliedToken(EndTagToken, a.Select, a.Select.String())
@@ -1750,6 +1754,9 @@ func inSelectIM(p *parser) bool {
 		case a.Select:
 			if p.popUntil(selectScope, a.Select) {
 				p.resetInsertionMode()
+			} else {
+				// Ignore the token.
+				return true
 			}
 		case a.Template:
 			return inHeadIM(p)
@@ -1775,13 +1782,22 @@ func inSelectInTableIM(p *parser) bool {
 	case StartTagToken, EndTagToken:
 		switch p.tok.DataAtom {
 		case a.Caption, a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr, a.Td, a.Th:
-			if p.tok.Type == StartTagToken || p.elementInScope(tableScope, p.tok.DataAtom) {
-				p.parseImpliedToken(EndTagToken, a.Select, a.Select.String())
-				return false
-			} else {
+			if p.tok.Type == EndTagToken && !p.elementInScope(tableScope, p.tok.DataAtom) {
 				// Ignore the token.
 				return true
 			}
+			// This is like p.popUntil(selectScope, a.Select), but it also
+			// matches <math select>, not just <select>. Matching the MathML
+			// tag is arguably incorrect (conceptually), but it mimics what
+			// Chromium does.
+			for i := len(p.oe) - 1; i >= 0; i-- {
+				if n := p.oe[i]; n.DataAtom == a.Select {
+					p.oe = p.oe[:i]
+					break
+				}
+			}
+			p.resetInsertionMode()
+			return false
 		}
 	}
 	return inSelectIM(p)

--- a/html/parse_test.go
+++ b/html/parse_test.go
@@ -368,6 +368,7 @@ var renderTestBlacklist = map[string]bool{
 	// Reconstructing the active formatting elements results in a <plaintext>
 	// element that contains an <a> element.
 	`<!doctype html><p><a><plaintext>b`:         true,
+	`<table><math><select><mi><select></table>`: true,
 }

 func TestNodeConsistency(t *testing.T) {

--- a/html/testdata/go/select.dat
+++ b/html/testdata/go/select.dat
+#data
+<table><math><select><mi><select></table>
+#errors
+#document
+| <html>
+|   <head>
+|   <body>
+|     <math math>
+|       <math select>
+|         <math mi>
+|           <select>
+|     <table>