[cgiowt] (3) Turn off a quirk in foreign lands when doing innerHTML p…

…arsing

Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=17924
Affected topics: HTML Syntax and Parsing

git-svn-id: http://svn.whatwg.org/webapps@7918 340c8d12-0b0e-0410-8428-c7bf67bfef74

complete.html

    parser -->, "p", "pre", "ruby", "s", <!--"script",--> "small", "span", "strong", "strike"<!-- so
    that s and strike can be handled uniformly throughout the parser -->, <!--"style",--> "sub",
    "sup", "table"<!--by inspection-->, "tt", "u", "ul", "var"</dt> <!-- this list was determined
-   empirically by studying over 6,000,000,000 pages that were specifically not XML pages --> <dt>A
-   start tag whose tag name is "font", if the token has any attributes named "color", "face", or
-   "size"</dt> <!-- the attributes here are required so that SVG <font> will go through as SVG but
-   legacy <font>s won't -->
+   empirically by studying over 6,000,000,000 pages that were specifically not XML pages -->
+   <dt>A start tag whose tag name is "font", if the token has any attributes named "color", "face",
+   or "size"</dt> <!-- the attributes here are required so that SVG <font> will go through as SVG
+   but legacy <font>s won't -->
 
    <dd>
 
     <p><a href=#parse-error>Parse error</a>.</p>
 
-    <p>If the <a href=#stack-of-open-elements>stack of open elements</a> does not <a href=#has-an-element-in-scope title="has an element in
-    scope">have an element in scope</a> that is a <a href=#mathml-text-integration-point>MathML text integration point</a>, an
-    <a href=#html-integration-point>HTML integration point</a>, or an element in the <a href=#html-namespace-0>HTML namespace</a>, or if the
-    <a href=#stack-of-open-elements>stack of open elements</a> has only one element, then process the token <a href=#using-the-rules-for>using the
-    rules for</a> the "<a href=#parsing-main-inbody title="insertion mode: in body">in body</a>" <a href=#insertion-mode>insertion
-    mode</a>. (<a href=#fragment-case>fragment case</a>)</p>
+    <!-- for sanity's sake, we limit this wacked quirk to legacy full-document parsing, not to
+    innerHTML. We have no data showing whether (or that) this is needed for innerHTML. If innerHTML
+    is used on an SVG or MathML node, it definitely doesn't make any sense (there's nothing to pop
+    to in the first place). Therefore, rather than trying to figure out in what convoluted
+    conditions we could actually do this quirk for innerHTML, we just don't do it at all. -->
+
+    <p>If the parser was originally created for the <a href=#html-fragment-parsing-algorithm>HTML fragment parsing algorithm</a>,
+    then act as described in the "any other start tag" entry below. (<a href=#fragment-case>fragment case</a>)</p>
 
     <p>Otherwise:</p>
 

index

    parser -->, "p", "pre", "ruby", "s", <!--"script",--> "small", "span", "strong", "strike"<!-- so
    that s and strike can be handled uniformly throughout the parser -->, <!--"style",--> "sub",
    "sup", "table"<!--by inspection-->, "tt", "u", "ul", "var"</dt> <!-- this list was determined
-   empirically by studying over 6,000,000,000 pages that were specifically not XML pages --> <dt>A
-   start tag whose tag name is "font", if the token has any attributes named "color", "face", or
-   "size"</dt> <!-- the attributes here are required so that SVG <font> will go through as SVG but
-   legacy <font>s won't -->
+   empirically by studying over 6,000,000,000 pages that were specifically not XML pages -->
+   <dt>A start tag whose tag name is "font", if the token has any attributes named "color", "face",
+   or "size"</dt> <!-- the attributes here are required so that SVG <font> will go through as SVG
+   but legacy <font>s won't -->
 
    <dd>
 
     <p><a href=#parse-error>Parse error</a>.</p>
 
-    <p>If the <a href=#stack-of-open-elements>stack of open elements</a> does not <a href=#has-an-element-in-scope title="has an element in
-    scope">have an element in scope</a> that is a <a href=#mathml-text-integration-point>MathML text integration point</a>, an
-    <a href=#html-integration-point>HTML integration point</a>, or an element in the <a href=#html-namespace-0>HTML namespace</a>, or if the
-    <a href=#stack-of-open-elements>stack of open elements</a> has only one element, then process the token <a href=#using-the-rules-for>using the
-    rules for</a> the "<a href=#parsing-main-inbody title="insertion mode: in body">in body</a>" <a href=#insertion-mode>insertion
-    mode</a>. (<a href=#fragment-case>fragment case</a>)</p>
+    <!-- for sanity's sake, we limit this wacked quirk to legacy full-document parsing, not to
+    innerHTML. We have no data showing whether (or that) this is needed for innerHTML. If innerHTML
+    is used on an SVG or MathML node, it definitely doesn't make any sense (there's nothing to pop
+    to in the first place). Therefore, rather than trying to figure out in what convoluted
+    conditions we could actually do this quirk for innerHTML, we just don't do it at all. -->
+
+    <p>If the parser was originally created for the <a href=#html-fragment-parsing-algorithm>HTML fragment parsing algorithm</a>,
+    then act as described in the "any other start tag" entry below. (<a href=#fragment-case>fragment case</a>)</p>
 
     <p>Otherwise:</p>
 

source

    parser -->, "p", "pre", "ruby", "s", <!--"script",--> "small", "span", "strong", "strike"<!-- so
    that s and strike can be handled uniformly throughout the parser -->, <!--"style",--> "sub",
    "sup", "table"<!--by inspection-->, "tt", "u", "ul", "var"</dt> <!-- this list was determined
-   empirically by studying over 6,000,000,000 pages that were specifically not XML pages --> <dt>A
-   start tag whose tag name is "font", if the token has any attributes named "color", "face", or
-   "size"</dt> <!-- the attributes here are required so that SVG <font> will go through as SVG but
-   legacy <font>s won't -->
+   empirically by studying over 6,000,000,000 pages that were specifically not XML pages -->
+   <dt>A start tag whose tag name is "font", if the token has any attributes named "color", "face",
+   or "size"</dt> <!-- the attributes here are required so that SVG <font> will go through as SVG
+   but legacy <font>s won't -->
 
    <dd>
 
     <p><span>Parse error</span>.</p>
 
-    <p>If the <span>stack of open elements</span> does not <span title="has an element in
-    scope">have an element in scope</span> that is a <span>MathML text integration point</span>, an
-    <span>HTML integration point</span>, or an element in the <span>HTML namespace</span>, or if the
-    <span>stack of open elements</span> has only one element, then process the token <span>using the
-    rules for</span> the "<span title="insertion mode: in body">in body</span>" <span>insertion
-    mode</span>. (<span>fragment case</span>)</p>
+    <!-- for sanity's sake, we limit this wacked quirk to legacy full-document parsing, not to
+    innerHTML. We have no data showing whether (or that) this is needed for innerHTML. If innerHTML
+    is used on an SVG or MathML node, it definitely doesn't make any sense (there's nothing to pop
+    to in the first place). Therefore, rather than trying to figure out in what convoluted
+    conditions we could actually do this quirk for innerHTML, we just don't do it at all. -->
+
+    <p>If the parser was originally created for the <span>HTML fragment parsing algorithm</span>,
+    then act as described in the "any other start tag" entry below. (<span>fragment case</span>)</p>
 
     <p>Otherwise:</p>