diff options
Diffstat (limited to 'parser/htmlparser/nsElementTable.cpp')
| -rw-r--r-- | parser/htmlparser/nsElementTable.cpp | 89 |
1 files changed, 68 insertions, 21 deletions
diff --git a/parser/htmlparser/nsElementTable.cpp b/parser/htmlparser/nsElementTable.cpp index 52507a976..84e3af6ba 100644 --- a/parser/htmlparser/nsElementTable.cpp +++ b/parser/htmlparser/nsElementTable.cpp @@ -1,18 +1,66 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/* vim: set ts=2 sw=2 et tw=78: */ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#include "nsIAtom.h" #include "nsElementTable.h" -/***************************************************************************** - Now it's time to list all the html elements all with their capabilities... -******************************************************************************/ +static const int kNone= 0x0; + +static const int kHTMLContent = 0x0001; // HEAD, (FRAMESET | BODY) +static const int kHeadContent = 0x0002; // Elements that *must* be in the head. +static const int kHeadMisc = 0x0004; // Elements that *can* be in the head. + +static const int kSpecial = 0x0008; // A, IMG, APPLET, OBJECT, FONT, BASEFONT, BR, SCRIPT, + // MAP, Q, SUB, SUP, SPAN, BDO, IFRAME + +static const int kFormControl = 0x0010; // INPUT SELECT TEXTAREA LABEL BUTTON +static const int kPreformatted = 0x0020; // PRE +static const int kPreExclusion = 0x0040; // IMG, OBJECT, APPLET, BIG, SMALL, SUB, SUP, FONT, BASEFONT +static const int kFontStyle = 0x0080; // TT, I, B, U, S, STRIKE, BIG, SMALL +static const int kPhrase = 0x0100; // EM, STRONG, DFN, CODE, SAMP, KBD, VAR, CITE, ABBR, ACRONYM +static const int kHeading = 0x0200; // H1..H6 +static const int kBlockMisc = 0x0400; // OBJECT, SCRIPT +static const int kBlock = 0x0800; // ADDRESS, BLOCKQUOTE, CENTER, DIV, DL, FIELDSET, FORM, + // ISINDEX, HR, NOSCRIPT, NOFRAMES, P, TABLE +static const int kList = 0x1000; // UL, OL, DIR, MENU +static const int kPCDATA = 0x2000; // plain text and entities... +static const int kSelf = 0x4000; // whatever THIS tag is... +static const int kExtensions = 0x8000; // BGSOUND, WBR, NOBR +static const int kTable = 0x10000;// TR,TD,THEAD,TBODY,TFOOT,CAPTION,TH +static const int kDLChild = 0x20000;// DL, DT +static const int kCDATA = 0x40000;// just plain text... + +static const int kInlineEntity = (kPCDATA|kFontStyle|kPhrase|kSpecial|kFormControl|kExtensions); // #PCDATA, %fontstyle, %phrase, %special, %formctrl +static const int kBlockEntity = (kHeading|kList|kPreformatted|kBlock); // %heading, %list, %preformatted, %block +static const int kFlowEntity = (kBlockEntity|kInlineEntity); // %blockentity, %inlineentity +static const int kAllTags = 0xffffff; -// The Element Table (sung to the tune of Modern Major General) +// Is aTest a member of aBitset? +static bool +TestBits(int32_t aBitset, int32_t aTest) +{ + if (aTest) { + int32_t result = aBitset & aTest; + return result == aTest; + } + return false; +} + +struct HTMLElement +{ + bool IsMemberOf(int32_t aBitset) const + { + return TestBits(aBitset, mParentBits); + } + +#ifdef DEBUG + nsHTMLTag mTagID; +#endif + int mParentBits; // defines groups that can contain this element + bool mLeaf; +}; #ifdef DEBUG #define ELEM(tag, parent, leaf) { eHTMLTag_##tag, parent, leaf }, @@ -20,7 +68,7 @@ #define ELEM(tag, parent, leaf) { parent, leaf }, #endif -const nsHTMLElement gHTMLElements[] = { +static const HTMLElement gHTMLElements[] = { ELEM(unknown, kNone, true) ELEM(a, kSpecial, false) ELEM(abbr, kPhrase, false) @@ -172,19 +220,14 @@ const nsHTMLElement gHTMLElements[] = { #undef ELEM -/*********************************************************************************************/ - -bool nsHTMLElement::IsMemberOf(int32_t aSet) const -{ - return TestBits(aSet, mParentBits); -} - -bool nsHTMLElement::IsContainer(eHTMLTags aId) +bool +nsHTMLElement::IsContainer(nsHTMLTag aId) { return !gHTMLElements[aId].mLeaf; } -bool nsHTMLElement::IsBlock(eHTMLTags aId) +bool +nsHTMLElement::IsBlock(nsHTMLTag aId) { return gHTMLElements[aId].IsMemberOf(kBlock) || gHTMLElements[aId].IsMemberOf(kBlockEntity) || @@ -194,10 +237,14 @@ bool nsHTMLElement::IsBlock(eHTMLTags aId) } #ifdef DEBUG -void CheckElementTable() +void +CheckElementTable() { - for (eHTMLTags t = eHTMLTag_unknown; t <= eHTMLTag_userdefined; t = eHTMLTags(t + 1)) { - NS_ASSERTION(gHTMLElements[t].mTagID == t, "gHTMLElements entries does match tag list."); + for (nsHTMLTag t = eHTMLTag_unknown; + t <= eHTMLTag_userdefined; + t = nsHTMLTag(t + 1)) { + MOZ_ASSERT(gHTMLElements[t].mTagID == t, + "gHTMLElements entries does match tag list."); } } #endif |