/////////////////////////////////////////////////////////////////////////////
-// Name: htmlpars.cpp
+// Name: src/html/htmlpars.cpp
// Purpose: wxHtmlParser class (generic parser)
// Author: Vaclav Slavik
// RCS-ID: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "htmlpars.h"
-#endif
-
#include "wx/wxprec.h"
-#include "wx/defs.h"
-#if wxUSE_HTML && wxUSE_STREAMS
-
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#ifndef WXPRECOMP
+#if wxUSE_HTML && wxUSE_STREAMS
+
+#ifndef WX_PRECOMP
+ #include "wx/dynarray.h"
#include "wx/log.h"
#include "wx/intl.h"
+ #include "wx/app.h"
+ #include "wx/wxcrtvararg.h"
#endif
#include "wx/tokenzr.h"
#include "wx/fontmap.h"
#include "wx/html/htmldefs.h"
#include "wx/html/htmlpars.h"
-#include "wx/dynarray.h"
#include "wx/arrimpl.cpp"
#ifdef __WXWINCE__
#endif
// DLL options compatibility check:
-#include "wx/app.h"
WX_CHECK_BUILD_OPTIONS("wxHTML")
const wxChar *wxTRACE_HTML_DEBUG = _T("htmldebug");
};
WX_DECLARE_OBJARRAY(wxHtmlTextPiece, wxHtmlTextPieces);
-WX_DEFINE_OBJARRAY(wxHtmlTextPieces);
+WX_DEFINE_OBJARRAY(wxHtmlTextPieces)
class wxHtmlParserState
{
{
wxHtmlTagsCache cache(m_Source);
m_TextPieces = new wxHtmlTextPieces;
- CreateDOMSubTree(NULL, 0, m_Source.Length(), &cache);
+ CreateDOMSubTree(NULL, 0, m_Source.length(), &cache);
m_CurTextPiece = 0;
}
wxHtmlTextPiece(textBeginning, i - textBeginning));
// if it is a comment, skip it:
- if (i < end_pos-6 && m_Source.GetChar(i+1) == wxT('!') &&
- m_Source.GetChar(i+2) == wxT('-') &&
- m_Source.GetChar(i+3) == wxT('-'))
+ wxString::const_iterator iter = m_Source.begin() + i;
+ if ( SkipCommentTag(iter, m_Source.end()) )
{
- // Comments begin with "<!--" and end with "--[ \t\r\n]*>"
- // according to HTML 4.0
- int dashes = 0;
- i += 4;
- while (i < end_pos)
- {
- c = m_Source.GetChar(i++);
- if ((c == wxT(' ') || c == wxT('\n') ||
- c == wxT('\r') || c == wxT('\t')) && dashes >= 2) {}
- else if (c == wxT('>') && dashes >= 2)
- {
- textBeginning = i;
- break;
- }
- else if (c == wxT('-'))
- dashes++;
- else
- dashes = 0;
- }
+ textBeginning =
+ i = iter - m_Source.begin() + 1; // skip closing '>' too
}
// add another tag to the tree:
{
m_CurTag = m_Tags;
m_CurTextPiece = 0;
- DoParsing(0, m_Source.Length());
+ DoParsing(0, m_Source.length());
}
void wxHtmlParser::DoParsing(int begin_pos, int end_pos)
}
else if (m_CurTag)
{
- // Add tag:
- if (m_CurTag)
- {
- if (m_CurTag->HasEnding())
- begin_pos = m_CurTag->GetEndPos2();
- else
- begin_pos = m_CurTag->GetBeginPos();
- }
+ if (m_CurTag->HasEnding())
+ begin_pos = m_CurTag->GetEndPos2();
+ else
+ begin_pos = m_CurTag->GetBeginPos();
wxHtmlTag *t = m_CurTag;
m_CurTag = m_CurTag->GetNextTag();
AddTag(*t);
handler->SetParser(this);
}
-void wxHtmlParser::PushTagHandler(wxHtmlTagHandler *handler, wxString tags)
+void wxHtmlParser::PushTagHandler(wxHtmlTagHandler *handler, const wxString& tags)
{
wxStringTokenizer tokenizer(tags, wxT(", "));
wxString key;
return true;
}
+wxString wxHtmlParser::GetInnerSource(const wxHtmlTag& tag)
+{
+ return GetSource()->Mid(tag.GetBeginPos(),
+ tag.GetEndPos1() - tag.GetBeginPos());
+}
+
//-----------------------------------------------------------------------------
// wxHtmlTagHandler
//-----------------------------------------------------------------------------
IMPLEMENT_ABSTRACT_CLASS(wxHtmlTagHandler,wxObject)
+void wxHtmlTagHandler::ParseInnerSource(const wxString& source)
+{
+ // It is safe to temporarily change the source being parsed,
+ // provided we restore the state back after parsing
+ m_Parser->SetSourceAndSaveState(source);
+ m_Parser->DoParsing();
+ m_Parser->RestoreState();
+}
+
//-----------------------------------------------------------------------------
// wxHtmlEntitiesParser
{
if (c - last > 0)
output.append(last, c - last);
- if (++c == wxT('\0')) break;
+ if ( *++c == wxT('\0') )
+ break;
wxString entity;
const wxChar *ent_s = c;
while (substitutions[substitutions_cnt].code != 0)
substitutions_cnt++;
- wxHtmlEntityInfo *info;
+ wxHtmlEntityInfo *info = NULL;
+#ifdef __WXWINCE__
+ // bsearch crashes under WinCE for some reason
+ size_t i;
+ for (i = 0; i < substitutions_cnt; i++)
+ {
+ if (entity == substitutions[i].name)
+ {
+ info = & substitutions[i];
+ break;
+ }
+ }
+#else
info = (wxHtmlEntityInfo*) bsearch(entity.c_str(), substitutions,
substitutions_cnt,
sizeof(wxHtmlEntityInfo),
wxHtmlEntityCompare);
+#endif
if (info)
code = info->code;
}
return charset;
}
-#endif
+/* static */
+bool
+wxHtmlParser::SkipCommentTag(wxString::const_iterator& start,
+ wxString::const_iterator end)
+{
+ wxASSERT_MSG( *start == '<', _T("should be called on the tag start") );
+
+ wxString::const_iterator p = start;
+
+ // comments begin with "<!--" in HTML 4.0
+ if ( end - p < 3 || *++p != '!' || *++p != '-' || *++p != '-' )
+ {
+ // not a comment at all
+ return false;
+ }
+
+ // skip the start of the comment tag in any case, if we don't find the
+ // closing tag we should ignore broken markup
+ start = p;
+
+ // comments end with "--[ \t\r\n]*>", i.e. white space is allowed between
+ // comment delimiter and the closing tag character (section 3.2.4 of
+ // http://www.w3.org/TR/html401/)
+ int dashes = 0;
+ while ( ++p < end )
+ {
+ const wxChar c = *p;
+
+ if ( (c == wxT(' ') || c == wxT('\n') ||
+ c == wxT('\r') || c == wxT('\t')) && dashes >= 2 )
+ {
+ // ignore white space before potential tag end
+ continue;
+ }
+
+ if ( c == wxT('>') && dashes >= 2 )
+ {
+ // found end of comment
+ start = p;
+ break;
+ }
+
+ if ( c == wxT('-') )
+ dashes++;
+ else
+ dashes = 0;
+ }
+
+ return true;
+}
+
+#endif // wxUSE_HTML
projects / wxWidgets.git / blobdiff