/////////////////////////////////////////////////////////////////////////////
-// Name: htmlpars.cpp
+// Name: src/html/htmlpars.cpp
// Purpose: wxHtmlParser class (generic parser)
// Author: Vaclav Slavik
// RCS-ID: $Id$
// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWindows Licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-
-#ifdef __GNUG__
-#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
+#if wxUSE_HTML && wxUSE_STREAMS
+
#ifndef WXPRECOMP
+ #include "wx/dynarray.h"
#include "wx/log.h"
#include "wx/intl.h"
+ #include "wx/app.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__
+ #include "wx/msw/wince/missing.h" // for bsearch()
+#endif
+
+// DLL options compatibility check:
+WX_CHECK_BUILD_OPTIONS("wxHTML")
+
+const wxChar *wxTRACE_HTML_DEBUG = _T("htmldebug");
+
//-----------------------------------------------------------------------------
// wxHtmlParser helpers
//-----------------------------------------------------------------------------
};
WX_DECLARE_OBJARRAY(wxHtmlTextPiece, wxHtmlTextPieces);
-WX_DEFINE_OBJARRAY(wxHtmlTextPieces);
+WX_DEFINE_OBJARRAY(wxHtmlTextPieces)
class wxHtmlParserState
{
{
while (RestoreState()) {}
DestroyDOMTree();
-
+
+ if (m_HandlersStack)
+ {
+ wxList& tmp = *m_HandlersStack;
+ wxList::iterator it, en;
+ for( it = tmp.begin(), en = tmp.end(); it != en; ++it )
+ delete (wxHashTable*)*it;
+ tmp.clear();
+ }
delete m_HandlersStack;
m_HandlersHash.Clear();
- m_HandlersList.DeleteContents(TRUE);
- m_HandlersList.Clear();
+ WX_CLEAR_LIST(wxList, m_HandlersList);
delete m_entitiesParser;
}
void wxHtmlParser::InitParser(const wxString& source)
{
SetSource(source);
- m_stopParsing = FALSE;
+ m_stopParsing = false;
}
void wxHtmlParser::DoneParser()
{
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;
}
// add another tag to the tree:
else if (i < end_pos-1 && m_Source.GetChar(i+1) != wxT('/'))
- {
+ {
wxHtmlTag *chd;
if (cur)
chd = new wxHtmlTag(cur, m_Source,
}
else
i = chd->GetBeginPos();
-
+
textBeginning = i;
}
{
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);
void wxHtmlParser::AddTag(const wxHtmlTag& tag)
{
wxHtmlTagHandler *h;
- bool inner = FALSE;
+ bool inner = false;
h = (wxHtmlTagHandler*) m_HandlersHash.Get(tag.GetName());
if (h)
handler->SetParser(this);
}
-void wxHtmlParser::PushTagHandler(wxHtmlTagHandler *handler, wxString tags)
+void wxHtmlParser::PushTagHandler(wxHtmlTagHandler *handler, const wxString& tags)
{
wxStringTokenizer tokenizer(tags, wxT(", "));
wxString key;
if (m_HandlersStack == NULL)
{
m_HandlersStack = new wxList;
- m_HandlersStack->DeleteContents(TRUE);
}
- m_HandlersStack->Insert(new wxHashTable(m_HandlersHash));
+ m_HandlersStack->Insert((wxObject*)new wxHashTable(m_HandlersHash));
while (tokenizer.HasMoreTokens())
{
void wxHtmlParser::PopTagHandler()
{
- wxNode *first;
+ wxList::compatibility_iterator first;
- if (m_HandlersStack == NULL ||
- (first = m_HandlersStack->GetFirst()) == NULL)
+ if ( !m_HandlersStack ||
+#if wxUSE_STL
+ !(first = m_HandlersStack->GetFirst())
+#else // !wxUSE_STL
+ ((first = m_HandlersStack->GetFirst()) == NULL)
+#endif // wxUSE_STL/!wxUSE_STL
+ )
{
wxLogWarning(_("Warning: attempt to remove HTML tag handler from empty stack."));
return;
}
m_HandlersHash = *((wxHashTable*) first->GetData());
- m_HandlersStack->DeleteNode(first);
+ delete (wxHashTable*) first->GetData();
+ m_HandlersStack->Erase(first);
}
void wxHtmlParser::SetSourceAndSaveState(const wxString& src)
bool wxHtmlParser::RestoreState()
{
- if (!m_SavedStates) return FALSE;
+ if (!m_SavedStates) return false;
DestroyDOMTree();
m_Source = s->m_source;
delete s;
- return TRUE;
+ return true;
+}
+
+wxString wxHtmlParser::GetInnerSource(const wxHtmlTag& tag)
+{
+ return GetSource()->Mid(tag.GetBeginPos(),
+ tag.GetEndPos1() - tag.GetBeginPos());
}
//-----------------------------------------------------------------------------
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
const wxChar *c, *last;
const wxChar *in_str = input.c_str();
wxString output;
-
+
output.reserve(input.length());
for (c = in_str, last = in_str; *c != wxT('\0'); c++)
{
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;
wxChar entity_char;
-
+
for (; (*c >= wxT('a') && *c <= wxT('z')) ||
(*c >= wxT('A') && *c <= wxT('Z')) ||
(*c >= wxT('0') && *c <= wxT('9')) ||
else
{
output.append(ent_s-1, c-ent_s+2);
- wxLogDebug(wxT("Unrecognized HTML entity: '%s'"), entity.c_str());
+ wxLogTrace(wxTRACE_HTML_DEBUG,
+ wxT("Unrecognized HTML entity: '%s'"),
+ entity.c_str());
}
}
}
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 GetCharForCode(code);
}
-wxFSFile *wxHtmlParser::OpenURL(wxHtmlURLType WXUNUSED(type),
+wxFSFile *wxHtmlParser::OpenURL(wxHtmlURLType WXUNUSED(type),
const wxString& url) const
{
- return GetFS()->OpenFile(url);
+ return m_FS ? m_FS->OpenFile(url) : NULL;
+
}
class wxMetaTagParser : public wxHtmlParser
{
public:
+ wxMetaTagParser() { }
+
wxObject* GetProduct() { return NULL; }
+
protected:
virtual void AddText(const wxChar* WXUNUSED(txt)) {}
+
+ DECLARE_NO_COPY_CLASS(wxMetaTagParser)
};
class wxMetaTagHandler : public wxHtmlTagHandler
private:
wxString *m_retval;
+
+ DECLARE_NO_COPY_CLASS(wxMetaTagHandler)
};
bool wxMetaTagHandler::HandleTag(const wxHtmlTag& tag)
if (tag.GetName() == _T("BODY"))
{
m_Parser->StopParsing();
- return FALSE;
+ return false;
}
if (tag.HasParam(_T("HTTP-EQUIV")) &&
tag.GetParam(_T("HTTP-EQUIV")).IsSameAs(_T("Content-Type"), false) &&
tag.HasParam(_T("CONTENT")))
{
- wxString content = tag.GetParam(_T("CONTENT"));
+ wxString content = tag.GetParam(_T("CONTENT")).Lower();
if (content.Left(19) == _T("text/html; charset="))
{
*m_retval = content.Mid(19);
m_Parser->StopParsing();
}
}
- return FALSE;
+ return false;
}
wxString wxHtmlParser::ExtractCharsetInformation(const wxString& markup)
{
wxString charset;
- wxMetaTagParser parser;
- parser.AddTagHandler(new wxMetaTagHandler(&charset));
- parser.Parse(markup);
+ wxMetaTagParser *parser = new wxMetaTagParser();
+ if(parser)
+ {
+ parser->AddTagHandler(new wxMetaTagHandler(&charset));
+ parser->Parse(markup);
+ delete parser;
+ }
return charset;
}
-
#endif
projects / wxWidgets.git / blobdiff