void HTMLDocument::setCompatibilityModeFromDoctype()
{
// There are three possible compatibility modes:
// Quirks - quirks mode emulates WinIE and NS4. CSS parsing is also relaxed in this mode, e.g., unit types can
// be omitted from numbers.
// Limited Quirks - This mode is identical to no-quirks mode except for its treatment of line-height in the inline box model.
// No Quirks - no quirks apply. Web pages will obey the specifications to the letter.
DocumentType* docType = doctype();
if (!docType)
return;
// Check for Quirks Mode.
const String& publicId = docType->publicId();
if (docType->name() != "html"
|| publicId.startsWith("+//Silmaril//dtd html Pro v0r11 19970101//", false)
|| publicId.startsWith("-//AdvaSoft Ltd//DTD HTML 3.0 asWedit + extensions//", false)
|| publicId.startsWith("-//AS//DTD HTML 3.0 asWedit + extensions//", false)
|| publicId.startsWith("-//IETF//DTD HTML 2.0 Level 1//", false)
|| publicId.startsWith("-//IETF//DTD HTML 2.0 Level 2//", false)
|| publicId.startsWith("-//IETF//DTD HTML 2.0 Strict Level 1//", false)
|| publicId.startsWith("-//IETF//DTD HTML 2.0 Strict Level 2//", false)
|| publicId.startsWith("-//IETF//DTD HTML 2.0 Strict//", false)
|| publicId.startsWith("-//IETF//DTD HTML 2.0//", false)
|| publicId.startsWith("-//IETF//DTD HTML 2.1E//", false)
|| publicId.startsWith("-//IETF//DTD HTML 3.0//", false)
|| publicId.startsWith("-//IETF//DTD HTML 3.2 Final//", false)
|| publicId.startsWith("-//IETF//DTD HTML 3.2//", false)
|| publicId.startsWith("-//IETF//DTD HTML 3//", false)
|| publicId.startsWith("-//IETF//DTD HTML Level 0//", false)
|| publicId.startsWith("-//IETF//DTD HTML Level 1//", false)
|| publicId.startsWith("-//IETF//DTD HTML Level 2//", false)
|| publicId.startsWith("-//IETF//DTD HTML Level 3//", false)
|| publicId.startsWith("-//IETF//DTD HTML Strict Level 0//", false)
|| publicId.startsWith("-//IETF//DTD HTML Strict Level 1//", false)
|| publicId.startsWith("-//IETF//DTD HTML Strict Level 2//", false)
|| publicId.startsWith("-//IETF//DTD HTML Strict Level 3//", false)
|| publicId.startsWith("-//IETF//DTD HTML Strict//", false)
|| publicId.startsWith("-//IETF//DTD HTML//", false)
|| publicId.startsWith("-//Metrius//DTD Metrius Presentational//", false)
|| publicId.startsWith("-//Microsoft//DTD Internet Explorer 2.0 HTML Strict//", false)
|| publicId.startsWith("-//Microsoft//DTD Internet Explorer 2.0 HTML//", false)
|| publicId.startsWith("-//Microsoft//DTD Internet Explorer 2.0 Tables//", false)
|| publicId.startsWith("-//Microsoft//DTD Internet Explorer 3.0 HTML Strict//", false)
|| publicId.startsWith("-//Microsoft//DTD Internet Explorer 3.0 HTML//", false)
|| publicId.startsWith("-//Microsoft//DTD Internet Explorer 3.0 Tables//", false)
|| publicId.startsWith("-//Netscape Comm. Corp.//DTD HTML//", false)
|| publicId.startsWith("-//Netscape Comm. Corp.//DTD Strict HTML//", false)
|| publicId.startsWith("-//O'Reilly and Associates//DTD HTML 2.0//", false)
|| publicId.startsWith("-//O'Reilly and Associates//DTD HTML Extended 1.0//", false)
|| publicId.startsWith("-//O'Reilly and Associates//DTD HTML Extended Relaxed 1.0//", false)
|| publicId.startsWith("-//SoftQuad Software//DTD HoTMetaL PRO 6.0::19990601::extensions to HTML 4.0//", false)
|| publicId.startsWith("-//SoftQuad//DTD HoTMetaL PRO 4.0::19971010::extensions to HTML 4.0//", false)
|| publicId.startsWith("-//Spyglass//DTD HTML 2.0 Extended//", false)
|| publicId.startsWith("-//SQ//DTD HTML 2.0 HoTMetaL + extensions//", false)
|| publicId.startsWith("-//Sun Microsystems Corp.//DTD HotJava HTML//", false)
|| publicId.startsWith("-//Sun Microsystems Corp.//DTD HotJava Strict HTML//", false)
|| publicId.startsWith("-//W3C//DTD HTML 3 1995-03-24//", false)
|| publicId.startsWith("-//W3C//DTD HTML 3.2 Draft//", false)
|| publicId.startsWith("-//W3C//DTD HTML 3.2 Final//", false)
|| publicId.startsWith("-//W3C//DTD HTML 3.2//", false)
|| publicId.startsWith("-//W3C//DTD HTML 3.2S Draft//", false)
|| publicId.startsWith("-//W3C//DTD HTML 4.0 Frameset//", false)
|| publicId.startsWith("-//W3C//DTD HTML 4.0 Transitional//", false)
|| publicId.startsWith("-//W3C//DTD HTML Experimental 19960712//", false)
|| publicId.startsWith("-//W3C//DTD HTML Experimental 970421//", false)
|| publicId.startsWith("-//W3C//DTD W3 HTML//", false)
|| publicId.startsWith("-//W3O//DTD W3 HTML 3.0//", false)
|| equalIgnoringCase(publicId, "-//W3O//DTD W3 HTML Strict 3.0//EN//")
|| publicId.startsWith("-//WebTechs//DTD Mozilla HTML 2.0//", false)
|| publicId.startsWith("-//WebTechs//DTD Mozilla HTML//", false)
|| equalIgnoringCase(publicId, "-/W3C/DTD HTML 4.0 Transitional/EN")
|| equalIgnoringCase(publicId, "HTML")
|| equalIgnoringCase(docType->systemId(), "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd")
|| (docType->systemId().isEmpty() && publicId.startsWith("-//W3C//DTD HTML 4.01 Frameset//", false))
|| (docType->systemId().isEmpty() && publicId.startsWith("-//W3C//DTD HTML 4.01 Transitional//", false))) {
setCompatibilityMode(QuirksMode);
return;
}
// Check for Limited Quirks Mode.
if (publicId.startsWith("-//W3C//DTD XHTML 1.0 Frameset//", false)
|| publicId.startsWith("-//W3C//DTD XHTML 1.0 Transitional//", false)
|| (!docType->systemId().isEmpty() && publicId.startsWith("-//W3C//DTD HTML 4.01 Frameset//", false))
|| (!docType->systemId().isEmpty() && publicId.startsWith("-//W3C//DTD HTML 4.01 Transitional//", false))) {
setCompatibilityMode(LimitedQuirksMode);
return;
}
// Otherwise we are No Quirks Mode.
setCompatibilityMode(NoQuirksMode);
return;
}
void HTMLDocument::determineParseMode()
{
// FIXME: It's terrible that this code runs separately and isn't just built in to the
// HTML tokenizer/parser.
// This code more or less mimics Mozilla's implementation (specifically the
// doctype parsing implemented by David Baron in Mozilla's nsParser.cpp).
//
// There are three possible parse modes:
// COMPAT - quirks mode emulates WinIE and NS4. CSS parsing is also relaxed in this mode, e.g., unit types can
// be omitted from numbers.
// ALMOST STRICT - This mode is identical to strict mode except for its treatment of line-height in the inline box model. For
// now (until the inline box model is re-written), this mode is identical to STANDARDS mode.
// STRICT - no quirks apply. Web pages will obey the specifications to the letter.
bool wasInCompatMode = inCompatMode();
DocumentType* docType = doctype();
if (!docType || !equalIgnoringCase(docType->name(), "html"))
// No doctype found at all or the doctype is not HTML. Default to quirks mode and Html4.
setParseMode(Compat);
else if (!doctype()->systemId().isEmpty() && equalIgnoringCase(docType->systemId(), "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd"))
// Assume quirks mode for this particular system ID. In the HTML5 spec, this is the only
// system identifier that is examined.
setParseMode(Compat);
else if (docType->publicId().isEmpty())
// A doctype without a public ID means use strict mode.
setParseMode(Strict);
else {
// We have to check a list of public IDs to see what we
// should do.
String lowerPubID = docType->publicId().lower();
CString pubIDStr = lowerPubID.latin1();
#ifdef ANDROID_META_SUPPORT
if ((!frame()->tree() || !frame()->tree()->parent()) &&
strstr(pubIDStr.data(), "-//wapforum//dtd xhtml mobile 1.") == pubIDStr.data()) {
// fit mobile sites directly in the screen
frame()->settings()->setMetadataSettings("width", "device-width");
}
#endif
// Look up the entry in our gperf-generated table.
const PubIDInfo* doctypeEntry = findDoctypeEntry(pubIDStr.data(), pubIDStr.length());
if (!doctypeEntry)
// The DOCTYPE is not in the list. Assume strict mode.
setParseMode(Strict);
else {
switch (docType->systemId().isEmpty() ?
doctypeEntry->mode_if_no_sysid :
doctypeEntry->mode_if_sysid) {
case PubIDInfo::eQuirks3:
case PubIDInfo::eQuirks:
setParseMode(Compat);
break;
case PubIDInfo::eAlmostStandards:
setParseMode(AlmostStrict);
break;
default:
ASSERT(false);
}
}
}
if (inCompatMode() != wasInCompatMode)
updateStyleSelector();
}