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handle some other non-nestable html tags too

This commit is contained in:
Adam D. Ruppe 2024-09-13 15:18:22 -04:00
parent 20e675ee99
commit 21c8eb6cbd
1 changed files with 29 additions and 9 deletions
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38
dom.d
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@ -548,7 +548,7 @@ class Document : FileResource, DomParent {
loose = !caseSensitive;
bool sawImproperNesting = false;
bool paragraphHackfixRequired = false;
bool nonNestableHackRequired = false;
int getLineNumber(sizediff_t p) {
int line = 1;
@ -1039,12 +1039,12 @@ class Document : FileResource, DomParent {
bool closed = selfClosed;
void considerHtmlParagraphHack(Element n) {
void considerHtmlNonNestableElementHack(Element n) {
assert(!strict);
if(e.tagName == "p" && e.tagName == n.tagName) {
if(!canNestElementsInHtml(e.tagName, n.tagName)) {
// html lets you write <p> para 1 <p> para 1
// but in the dom tree, they should be siblings, not children.
paragraphHackfixRequired = true;
nonNestableHackRequired = true;
}
}
@ -1066,7 +1066,7 @@ class Document : FileResource, DomParent {
piecesBeforeRoot ~= n.element;
} else if(n.type == 0) {
if(!strict)
considerHtmlParagraphHack(n.element);
considerHtmlNonNestableElementHack(n.element);
processNodeWhileParsing(e, n.element);
} else if(n.type == 1) {
bool found = false;
@ -1078,7 +1078,7 @@ class Document : FileResource, DomParent {
// this is so we don't drop several levels of awful markup
if(n.element) {
if(!strict)
considerHtmlParagraphHack(n.element);
considerHtmlNonNestableElementHack(n.element);
processNodeWhileParsing(e, n.element);
n.element = null;
}
@ -1119,7 +1119,7 @@ class Document : FileResource, DomParent {
} else {
if(n.element) {
if(!strict)
considerHtmlParagraphHack(n.element);
considerHtmlNonNestableElementHack(n.element);
processNodeWhileParsing(e, n.element);
}
}
@ -1251,7 +1251,7 @@ class Document : FileResource, DomParent {
parseUtf8(`<html><head></head><body></body></html>`); // fill in a dummy document in loose mode since that's what browsers do
}
if(paragraphHackfixRequired) {
if(nonNestableHackRequired) {
assert(!strict); // this should never happen in strict mode; it ought to never set the hack flag...
// in loose mode, we can see some "bad" nesting (it's valid html, but poorly formed xml).
@ -1265,7 +1265,7 @@ class Document : FileResource, DomParent {
if(ele.parentNode is null)
continue;
if(ele.tagName == "p" && ele.parentNode.tagName == ele.tagName) {
if(!canNestElementsInHtml(ele.parentNode.tagName, ele.tagName)) {
auto shouldBePreviousSibling = ele.parentNode;
auto holder = shouldBePreviousSibling.parentNode; // this is the two element's mutual holder...
if (auto p = holder in insertLocations) {
@ -1776,6 +1776,25 @@ unittest {
auto xml = new XmlDocument(`<my-stuff>hello</my-stuff>`);
}
bool canNestElementsInHtml(string parentTagName, string childTagName) {
switch(parentTagName) {
case "p":
switch(childTagName) {
case "p", "dl", "dt", "dd":
return false;
default: return true;
}
case "dt", "dd":
switch(childTagName) {
case "dd", "dt":
return false;
default: return true;
}
default:
return true;
}
}
interface DomParent {
inout(Document) asDocument() inout;
inout(Element) asElement() inout;
@ -4147,6 +4166,7 @@ class Element : DomParent {
}
}
// computedStyle could argubaly be removed to bring size down
//pragma(msg, __traits(classInstanceSize, Element));
//pragma(msg, Element.tupleof);