]> git.saurik.com Git - wxWidgets.git/blobdiff - src/html/htmlpars.cpp
Patch from Bo for recent API changes
[wxWidgets.git] / src / html / htmlpars.cpp
index 9d3bf3cb8e0f61275e9ffc617d6c263b84e48c13..01e1b306719810dc819060174f26211d51dc7de1 100644 (file)
@@ -29,7 +29,7 @@
 #include "wx/fontmap.h"
 #include "wx/html/htmldefs.h"
 #include "wx/html/htmlpars.h"
-#include "wx/arrimpl.cpp"
+#include "wx/vector.h"
 
 #ifdef __WXWINCE__
     #include "wx/msw/wince/missing.h"       // for bsearch()
@@ -47,12 +47,17 @@ const wxChar *wxTRACE_HTML_DEBUG = _T("htmldebug");
 class wxHtmlTextPiece
 {
 public:
-    wxHtmlTextPiece(int pos, int lng) : m_pos(pos), m_lng(lng) {}
-    int m_pos, m_lng;
+    wxHtmlTextPiece() {}
+    wxHtmlTextPiece(const wxString::const_iterator& start,
+                    const wxString::const_iterator& end)
+        : m_start(start), m_end(end) {}
+    wxString::const_iterator m_start, m_end;
 };
 
-WX_DECLARE_OBJARRAY(wxHtmlTextPiece, wxHtmlTextPieces);
-WX_DEFINE_OBJARRAY(wxHtmlTextPieces)
+// NB: this is an empty class and not typedef because of forward declaration
+class wxHtmlTextPieces : public wxVector<wxHtmlTextPiece>
+{
+};
 
 class wxHtmlParserState
 {
@@ -61,7 +66,7 @@ public:
     wxHtmlTag         *m_tags;
     wxHtmlTextPieces  *m_textPieces;
     int                m_curTextPiece;
-    wxString           m_source;
+    const wxString    *m_source;
     wxHtmlParserState *m_nextState;
 };
 
@@ -75,6 +80,7 @@ wxHtmlParser::wxHtmlParser()
     : wxObject(), m_HandlersHash(wxKEY_STRING),
       m_FS(NULL), m_HandlersStack(NULL)
 {
+    m_Source = NULL;
     m_entitiesParser = new wxHtmlEntitiesParser;
     m_Tags = NULL;
     m_CurTag = NULL;
@@ -100,6 +106,7 @@ wxHtmlParser::~wxHtmlParser()
     m_HandlersHash.Clear();
     WX_CLEAR_LIST(wxList, m_HandlersList);
     delete m_entitiesParser;
+    delete m_Source;
 }
 
 wxObject* wxHtmlParser::Parse(const wxString& source)
@@ -125,7 +132,10 @@ void wxHtmlParser::DoneParser()
 void wxHtmlParser::SetSource(const wxString& src)
 {
     DestroyDOMTree();
-    m_Source = src;
+    // NB: this is allocated on heap because wxHtmlTag keeps a pointer to
+    //     this string if WXWIN_COMPATIBILITY_2_8
+    delete m_Source;
+    m_Source = new wxString(src);
     CreateDOMTree();
     m_CurTag = NULL;
     m_CurTextPiece = 0;
@@ -133,54 +143,53 @@ void wxHtmlParser::SetSource(const wxString& src)
 
 void wxHtmlParser::CreateDOMTree()
 {
-    wxHtmlTagsCache cache(m_Source);
+    wxHtmlTagsCache cache(*m_Source);
     m_TextPieces = new wxHtmlTextPieces;
-    CreateDOMSubTree(NULL, 0, m_Source.length(), &cache);
+    CreateDOMSubTree(NULL, m_Source->begin(), m_Source->end(), &cache);
     m_CurTextPiece = 0;
 }
 
-extern bool wxIsCDATAElement(const wxChar *tag);
+extern bool wxIsCDATAElement(const wxString& tag);
 
 void wxHtmlParser::CreateDOMSubTree(wxHtmlTag *cur,
-                                    int begin_pos, int end_pos,
+                                    const wxString::const_iterator& begin_pos,
+                                    const wxString::const_iterator& end_pos,
                                     wxHtmlTagsCache *cache)
 {
-    if (end_pos <= begin_pos) return;
+    if (end_pos <= begin_pos)
+        return;
 
     wxChar c;
-    int i = begin_pos;
-    int textBeginning = begin_pos;
+    wxString::const_iterator i = begin_pos;
+    wxString::const_iterator textBeginning = begin_pos;
 
     // If the tag contains CDATA text, we include the text between beginning
     // and ending tag verbosely. Setting i=end_pos will skip to the very
     // end of this function where text piece is added, bypassing any child
     // tags parsing (CDATA element can't have child elements by definition):
-    if (cur != NULL && wxIsCDATAElement(cur->GetName().c_str()))
+    if (cur != NULL && wxIsCDATAElement(cur->GetName()))
     {
         i = end_pos;
     }
 
     while (i < end_pos)
     {
-        c = m_Source.GetChar(i);
+        c = *i;
 
         if (c == wxT('<'))
         {
             // add text to m_TextPieces:
-            if (i - textBeginning > 0)
-                m_TextPieces->Add(
-                    wxHtmlTextPiece(textBeginning, i - textBeginning));
+            if (i > textBeginning)
+                m_TextPieces->push_back(wxHtmlTextPiece(textBeginning, i));
 
             // if it is a comment, skip it:
-            wxString::const_iterator iter = m_Source.begin() + i;
-            if ( SkipCommentTag(iter, m_Source.end()) )
+            if ( SkipCommentTag(i, m_Source->end()) )
             {
-                textBeginning =
-                i = iter - m_Source.begin() + 1; // skip closing '>' too
+                textBeginning = i = i + 1; // skip closing '>' too
             }
 
             // add another tag to the tree:
-            else if (i < end_pos-1 && m_Source.GetChar(i+1) != wxT('/'))
+            else if (i < end_pos-1 && *(i+1) != wxT('/'))
             {
                 wxHtmlTag *chd;
                 if (cur)
@@ -208,12 +217,12 @@ void wxHtmlParser::CreateDOMSubTree(wxHtmlTag *cur,
                 if (chd->HasEnding())
                 {
                     CreateDOMSubTree(chd,
-                                     chd->GetBeginPos(), chd->GetEndPos1(),
+                                     chd->GetBeginIter(), chd->GetEndIter1(),
                                      cache);
-                    i = chd->GetEndPos2();
+                    i = chd->GetEndIter2();
                 }
                 else
-                    i = chd->GetBeginPos();
+                    i = chd->GetBeginIter();
 
                 textBeginning = i;
             }
@@ -221,17 +230,16 @@ void wxHtmlParser::CreateDOMSubTree(wxHtmlTag *cur,
             // ... or skip ending tag:
             else
             {
-                while (i < end_pos && m_Source.GetChar(i) != wxT('>')) i++;
+                while (i < end_pos && *i != wxT('>')) ++i;
                 textBeginning = i+1;
             }
         }
-        else i++;
+        else ++i;
     }
 
     // add remaining text to m_TextPieces:
-    if (end_pos - textBeginning > 0)
-        m_TextPieces->Add(
-            wxHtmlTextPiece(textBeginning, end_pos - textBeginning));
+    if (end_pos > textBeginning)
+        m_TextPieces->push_back(wxHtmlTextPiece(textBeginning, end_pos));
 }
 
 void wxHtmlParser::DestroyDOMTree()
@@ -254,42 +262,45 @@ void wxHtmlParser::DoParsing()
 {
     m_CurTag = m_Tags;
     m_CurTextPiece = 0;
-    DoParsing(0, m_Source.length());
+    DoParsing(m_Source->begin(), m_Source->end());
 }
 
-void wxHtmlParser::DoParsing(int begin_pos, int end_pos)
+void wxHtmlParser::DoParsing(const wxString::const_iterator& begin_pos_,
+                             const wxString::const_iterator& end_pos)
 {
-    if (end_pos <= begin_pos) return;
+    wxString::const_iterator begin_pos(begin_pos_);
+
+    if (end_pos <= begin_pos)
+        return;
 
     wxHtmlTextPieces& pieces = *m_TextPieces;
-    size_t piecesCnt = pieces.GetCount();
+    size_t piecesCnt = pieces.size();
 
     while (begin_pos < end_pos)
     {
-        while (m_CurTag && m_CurTag->GetBeginPos() < begin_pos)
+        while (m_CurTag && m_CurTag->GetBeginIter() < begin_pos)
             m_CurTag = m_CurTag->GetNextTag();
         while (m_CurTextPiece < piecesCnt &&
-               pieces[m_CurTextPiece].m_pos < begin_pos)
+               pieces[m_CurTextPiece].m_start < begin_pos)
             m_CurTextPiece++;
 
         if (m_CurTextPiece < piecesCnt &&
             (!m_CurTag ||
-             pieces[m_CurTextPiece].m_pos < m_CurTag->GetBeginPos()))
+             pieces[m_CurTextPiece].m_start < m_CurTag->GetBeginIter()))
         {
             // Add text:
             AddText(GetEntitiesParser()->Parse(
-                       m_Source.Mid(pieces[m_CurTextPiece].m_pos,
-                                    pieces[m_CurTextPiece].m_lng)));
-            begin_pos = pieces[m_CurTextPiece].m_pos +
-                        pieces[m_CurTextPiece].m_lng;
+                       wxString(pieces[m_CurTextPiece].m_start,
+                                pieces[m_CurTextPiece].m_end)));
+            begin_pos = pieces[m_CurTextPiece].m_end;
             m_CurTextPiece++;
         }
         else if (m_CurTag)
         {
             if (m_CurTag->HasEnding())
-                begin_pos = m_CurTag->GetEndPos2();
+                begin_pos = m_CurTag->GetEndIter2();
             else
-                begin_pos = m_CurTag->GetBeginPos();
+                begin_pos = m_CurTag->GetBeginIter();
             wxHtmlTag *t = m_CurTag;
             m_CurTag = m_CurTag->GetNextTag();
             AddTag(*t);
@@ -315,7 +326,7 @@ void wxHtmlParser::AddTag(const wxHtmlTag& tag)
     if (!inner)
     {
         if (tag.HasEnding())
-            DoParsing(tag.GetBeginPos(), tag.GetEndPos1());
+            DoParsing(tag.GetBeginIter(), tag.GetEndIter1());
     }
 }
 
@@ -390,7 +401,7 @@ void wxHtmlParser::SetSourceAndSaveState(const wxString& src)
     m_Tags = NULL;
     m_TextPieces = NULL;
     m_CurTextPiece = 0;
-    m_Source = wxEmptyString;
+    m_Source = NULL;
 
     SetSource(src);
 }
@@ -416,8 +427,7 @@ bool wxHtmlParser::RestoreState()
 
 wxString wxHtmlParser::GetInnerSource(const wxHtmlTag& tag)
 {
-    return GetSource()->Mid(tag.GetBeginPos(),
-                            tag.GetEndPos1() - tag.GetBeginPos());
+    return wxString(tag.GetBeginIter(), tag.GetEndIter1());
 }
 
 //-----------------------------------------------------------------------------
@@ -474,53 +484,64 @@ void wxHtmlEntitiesParser::SetEncoding(wxFontEncoding encoding)
 #endif
 }
 
-wxString wxHtmlEntitiesParser::Parse(const wxString& input)
+wxString wxHtmlEntitiesParser::Parse(const wxString& input) const
 {
-    const wxChar *c, *last;
-    const wxChar *in_str = input.c_str();
     wxString output;
 
-    output.reserve(input.length());
+    const wxString::const_iterator end(input.end());
+    wxString::const_iterator c(input.begin());
+    wxString::const_iterator last(c);
 
-    for (c = in_str, last = in_str; *c != wxT('\0'); c++)
+    for ( ; c < end; ++c )
     {
         if (*c == wxT('&'))
         {
+            if ( output.empty() )
+                output.reserve(input.length());
+
             if (c - last > 0)
-                output.append(last, c - last);
-            if ( *++c == wxT('\0') )
+                output.append(last, c);
+            if ( ++c == end )
                 break;
 
             wxString entity;
-            const wxChar *ent_s = c;
+            const wxString::const_iterator 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')) ||
-                   *c == wxT('_') || *c == wxT('#'); c++) {}
-            entity.append(ent_s, c - ent_s);
-            if (*c != wxT(';')) c--;
+            for ( ; c != end; ++c )
+            {
+                wxChar ch = *c;
+                if ( !((ch >= wxT('a') && ch <= wxT('z')) ||
+                       (ch >= wxT('A') && ch <= wxT('Z')) ||
+                       (ch >= wxT('0') && ch <= wxT('9')) ||
+                        ch == wxT('_') || ch == wxT('#')) )
+                    break;
+            }
+
+            entity.append(ent_s, c);
+            if (c == end || *c != wxT(';')) --c;
             last = c+1;
             entity_char = GetEntityChar(entity);
             if (entity_char)
                 output << entity_char;
             else
             {
-                output.append(ent_s-1, c-ent_s+2);
+                output.append(ent_s-1, c+1);
                 wxLogTrace(wxTRACE_HTML_DEBUG,
-                           wxT("Unrecognized HTML entity: '%s'"),
-                           entity.c_str());
+                           "Unrecognized HTML entity: '%s'",
+                           entity);
             }
         }
     }
-    if (*last != wxT('\0'))
-        output.append(last);
+    if ( last == input.begin() ) // common case: no entity
+        return input;
+    if ( last != end )
+        output.append(last, end);
     return output;
 }
 
 #if !wxUSE_UNICODE
-wxChar wxHtmlEntitiesParser::GetCharForCode(unsigned code)
+wxChar wxHtmlEntitiesParser::GetCharForCode(unsigned code) const
 {
 #if wxUSE_WCHAR_T
     char buf[2];
@@ -552,22 +573,24 @@ extern "C" int LINKAGEMODE wxHtmlEntityCompare(const void *key, const void *item
 #endif
 }
 
-wxChar wxHtmlEntitiesParser::GetEntityChar(const wxString& entity)
+wxChar wxHtmlEntitiesParser::GetEntityChar(const wxString& entity) const
 {
     unsigned code = 0;
 
     if (entity[0] == wxT('#'))
     {
-        const wxChar *ent_s = entity.c_str();
-        const wxChar *format;
+        // NB: parsed value is a number, so it's OK to use wx_str(), internal
+        //     representation is the same for numbers
+        const wxStringCharType *ent_s = entity.wx_str();
+        const wxStringCharType *format;
 
-        if (ent_s[1] == wxT('x') || ent_s[1] == wxT('X'))
+        if (ent_s[1] == wxSTRING_TEXT('x') || ent_s[1] == wxSTRING_TEXT('X'))
         {
-            format = wxT("%x");
+            format = wxSTRING_TEXT("%x");
             ent_s++;
         }
         else
-            format = wxT("%u");
+            format = wxSTRING_TEXT("%u");
         ent_s++;
 
         if (wxSscanf(ent_s, format, &code) != 1)
@@ -953,7 +976,7 @@ wxHtmlParser::SkipCommentTag(wxString::const_iterator& start,
     wxString::const_iterator p = start;
 
     // comments begin with "<!--" in HTML 4.0
-    if ( end - p < 3 || *++p != '!' || *++p != '-' || *++p != '-' )
+    if ( p > end - 3 || *++p != '!' || *++p != '-' || *++p != '-' )
     {
         // not a comment at all
         return false;