renamed wxDynamicThisCast to wxDynamicCastThis, removed 1st parameter, and documented

[wxWidgets.git] / src / html / htmlpars.cpp

diff --git a/src/html/htmlpars.cpp b/src/html/htmlpars.cpp
index 213bd0f75b7734fab090f11f11d609ee2ec4c652..612f74bbfe5a067f6c15e09558a9de5716bdf8b6 100644 (file)
--- a/src/html/htmlpars.cpp
+++ b/src/html/htmlpars.cpp
@@ -22,12 +22,14 @@
 #endif
 
 #ifndef WXPRECOMP
 #endif
 
 #ifndef WXPRECOMP

-#include "wx/wx.h"
+    #include "wx/log.h"
+    #include "wx/intl.h"

 #endif
 
 #include "wx/tokenzr.h"
 #include "wx/wfstream.h"
 #include "wx/url.h"
 #endif
 
 #include "wx/tokenzr.h"
 #include "wx/wfstream.h"
 #include "wx/url.h"

+#include "wx/fontmap.h"

 #include "wx/html/htmldefs.h"
 #include "wx/html/htmlpars.h"
 
 #include "wx/html/htmldefs.h"
 #include "wx/html/htmlpars.h"
 


@@ -39,6 +41,21 @@
 
 IMPLEMENT_ABSTRACT_CLASS(wxHtmlParser,wxObject)
 
 
 IMPLEMENT_ABSTRACT_CLASS(wxHtmlParser,wxObject)
 

+wxHtmlParser::wxHtmlParser()
+    : wxObject(), m_Cache(NULL), m_HandlersHash(wxKEY_STRING),
+      m_FS(NULL), m_HandlersStack(NULL)
+{
+    m_entitiesParser = new wxHtmlEntitiesParser;
+}
+
+wxHtmlParser::~wxHtmlParser()
+{
+    delete m_HandlersStack;
+    m_HandlersHash.Clear();
+    m_HandlersList.DeleteContents(TRUE);
+    m_HandlersList.Clear();
+    delete m_entitiesParser;
+}

 
 wxObject* wxHtmlParser::Parse(const wxString& source)
 {
 
 wxObject* wxHtmlParser::Parse(const wxString& source)
 {


@@ -51,27 +68,28 @@ wxObject* wxHtmlParser::Parse(const wxString& source)
     return result;
 }
 
     return result;
 }
 

-
-

 void wxHtmlParser::InitParser(const wxString& source)
 {
 void wxHtmlParser::InitParser(const wxString& source)
 {

-    m_Source = source;
-    m_Cache = new wxHtmlTagsCache(m_Source);
+    SetSource(source);

 }
 }

-        
-        
-        
+

 void wxHtmlParser::DoneParser()
 {
     delete m_Cache;
     m_Cache = NULL;
 }
 
 void wxHtmlParser::DoneParser()
 {
     delete m_Cache;
     m_Cache = NULL;
 }
 

-
-
+void wxHtmlParser::SetSource(const wxString& src)
+{
+    m_Source = src;
+    delete m_Cache;
+    m_Cache = new wxHtmlTagsCache(m_Source);
+}

 
 void wxHtmlParser::DoParsing(int begin_pos, int end_pos)
 {
 
 void wxHtmlParser::DoParsing(int begin_pos, int end_pos)
 {

+    if (end_pos <= begin_pos) return;
+

     char c;
     char *temp = new char[end_pos - begin_pos + 1];
     int i;
     char c;
     char *temp = new char[end_pos - begin_pos + 1];
     int i;


@@ -80,19 +98,23 @@ void wxHtmlParser::DoParsing(int begin_pos, int end_pos)
     templen = 0;
     i = begin_pos;
 
     templen = 0;
     i = begin_pos;
 

-    while (i < end_pos) {
+    while (i < end_pos)
+    {

         c = m_Source[(unsigned int) i];
 
         // continue building word:
         c = m_Source[(unsigned int) i];
 
         // continue building word:

-        if (c != '<') {
+        if (c != '<')
+           {

             temp[templen++] = c;
             i++;
         }
 
             temp[templen++] = c;
             i++;
         }
 

-        else if (c == '<')  {
-            wxHtmlTag tag(m_Source, i, end_pos, m_Cache);
+        else if (c == '<')
+           {
+            wxHtmlTag tag(m_Source, i, end_pos, m_Cache, m_entitiesParser);

 
 

-            if (templen) {
+            if (templen)
+               {

                 temp[templen] = 0;
                 AddText(temp);
                 templen = 0;
                 temp[templen] = 0;
                 AddText(temp);
                 templen = 0;


@@ -103,15 +125,14 @@ void wxHtmlParser::DoParsing(int begin_pos, int end_pos)
         }
     }
 
         }
     }
 

-    if (templen) { // last word of block :-(
+    if (templen)
+    { // last word of block :-(

         temp[templen] = 0;
         AddText(temp);
     }
     delete[] temp;
 }
 
         temp[templen] = 0;
         AddText(temp);
     }
     delete[] temp;
 }
 

-
-

 void wxHtmlParser::AddTag(const wxHtmlTag& tag)
 {
     wxHtmlTagHandler *h;
 void wxHtmlParser::AddTag(const wxHtmlTag& tag)
 {
     wxHtmlTagHandler *h;


@@ -119,18 +140,17 @@ void wxHtmlParser::AddTag(const wxHtmlTag& tag)
 
     h = (wxHtmlTagHandler*) m_HandlersHash.Get(tag.GetName());
     if (h)
 
     h = (wxHtmlTagHandler*) m_HandlersHash.Get(tag.GetName());
     if (h)

-        inner = h -> HandleTag(tag);
-    if (!inner) {
+        inner = h->HandleTag(tag);
+    if (!inner)
+    {

         if (tag.HasEnding())
             DoParsing(tag.GetBeginPos(), tag.GetEndPos1());
     }
 }
 
         if (tag.HasEnding())
             DoParsing(tag.GetBeginPos(), tag.GetEndPos1());
     }
 }
 

-
-

 void wxHtmlParser::AddTagHandler(wxHtmlTagHandler *handler)
 {
 void wxHtmlParser::AddTagHandler(wxHtmlTagHandler *handler)
 {

-    wxString s(handler -> GetSupportedTags());
+    wxString s(handler->GetSupportedTags());

     wxStringTokenizer tokenizer(s, ", ");
 
     while (tokenizer.HasMoreTokens())
     wxStringTokenizer tokenizer(s, ", ");
 
     while (tokenizer.HasMoreTokens())


@@ -139,62 +159,438 @@ void wxHtmlParser::AddTagHandler(wxHtmlTagHandler *handler)
     if (m_HandlersList.IndexOf(handler) == wxNOT_FOUND)
         m_HandlersList.Append(handler);
 
     if (m_HandlersList.IndexOf(handler) == wxNOT_FOUND)
         m_HandlersList.Append(handler);
 

-    handler -> SetParser(this);
+    handler->SetParser(this);

 }
 
 }
 

-
-

 void wxHtmlParser::PushTagHandler(wxHtmlTagHandler *handler, wxString tags)
 {
     wxStringTokenizer tokenizer(tags, ", ");
     wxString key;
 
 void wxHtmlParser::PushTagHandler(wxHtmlTagHandler *handler, wxString tags)
 {
     wxStringTokenizer tokenizer(tags, ", ");
     wxString key;
 

-    if (m_HandlersStack == NULL) {
+    if (m_HandlersStack == NULL)
+    {

         m_HandlersStack = new wxList;
         m_HandlersStack = new wxList;

-        m_HandlersStack -> DeleteContents(TRUE);
+        m_HandlersStack->DeleteContents(TRUE);

     }
 
     }
 

-    m_HandlersStack -> Insert(new wxHashTable(m_HandlersHash));
+    m_HandlersStack->Insert(new wxHashTable(m_HandlersHash));

 
 

-    while (tokenizer.HasMoreTokens()) {
+    while (tokenizer.HasMoreTokens())
+    {

         key = tokenizer.NextToken();
         m_HandlersHash.Delete(key);
         m_HandlersHash.Put(key, handler);
     }
 }
 
         key = tokenizer.NextToken();
         m_HandlersHash.Delete(key);
         m_HandlersHash.Put(key, handler);
     }
 }
 

-
-

 void wxHtmlParser::PopTagHandler()
 {
     wxNode *first;
 void wxHtmlParser::PopTagHandler()
 {
     wxNode *first;

-    
-    if (m_HandlersStack == NULL || 
-        (first = m_HandlersStack -> GetFirst()) == NULL) 
+
+    if (m_HandlersStack == NULL ||
+        (first = m_HandlersStack->GetFirst()) == NULL)

     {
         wxLogWarning(_("Warning: attempt to remove HTML tag handler from empty stack."));
         return;
     }
     {
         wxLogWarning(_("Warning: attempt to remove HTML tag handler from empty stack."));
         return;
     }

-    m_HandlersHash = *((wxHashTable*) first -> GetData());
-    m_HandlersStack -> DeleteNode(first);
+    m_HandlersHash = *((wxHashTable*) first->GetData());
+    m_HandlersStack->DeleteNode(first);

 }
 
 }
 

+//-----------------------------------------------------------------------------
+// wxHtmlTagHandler
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxHtmlTagHandler,wxObject)

 
 
 
 

-wxHtmlParser::~wxHtmlParser()
+//-----------------------------------------------------------------------------
+// wxHtmlEntitiesParser
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxHtmlEntitiesParser,wxObject)
+
+wxHtmlEntitiesParser::wxHtmlEntitiesParser()
+#if wxUSE_WCHAR_T && !wxUSE_UNICODE
+    : m_conv(NULL), m_encoding(wxFONTENCODING_SYSTEM)
+#endif

 {
 {

-    if (m_HandlersStack) delete m_HandlersStack;
-    m_HandlersHash.Clear();
-    m_HandlersList.DeleteContents(TRUE);
-    m_HandlersList.Clear();

 }
 
 }
 

+wxHtmlEntitiesParser::~wxHtmlEntitiesParser()
+{
+#if wxUSE_WCHAR_T && !wxUSE_UNICODE
+    delete m_conv;
+#endif
+}

 
 

+void wxHtmlEntitiesParser::SetEncoding(wxFontEncoding encoding)
+{
+#if wxUSE_WCHAR_T && !wxUSE_UNICODE
+    if (encoding == m_encoding) return;
+    delete m_conv;
+    m_conv = NULL;
+    m_encoding = encoding;
+    if (m_encoding != wxFONTENCODING_SYSTEM)
+        m_conv = new wxCSConv(wxFontMapper::GetEncodingName(m_encoding));
+#endif
+}

 
 

-//-----------------------------------------------------------------------------
-// wxHtmlTagHandler
-//-----------------------------------------------------------------------------
+wxString wxHtmlEntitiesParser::Parse(const wxString& input)
+{
+    const wxChar *c, *last;
+    const wxChar *in_str = input.c_str();
+    wxString output;

 
 

-IMPLEMENT_ABSTRACT_CLASS(wxHtmlTagHandler,wxObject)
+    for (c = in_str, last = in_str; *c != wxT('\0'); c++)
+    {
+        if (*c == wxT('&'))
+        {
+            if (c - last > 0)
+                output.append(last, c - last);
+            if (++c == wxT('\0')) break;
+            wxString entity;
+            const wxChar *ent_s = c;
+            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++;
+            output << GetEntityChar(entity);
+            last = c;
+        }
+    }
+    if (*last != wxT('\0'))
+        output.append(last);
+    return output;
+}
+
+struct wxHtmlEntityInfo
+{
+    const wxChar *name;
+    unsigned code;
+};
+
+static int LINKAGEMODE compar_entity(const void *key, const void *item)
+{
+    return wxStrcmp((wxChar*)key, ((wxHtmlEntityInfo*)item)->name);
+}
+
+wxChar wxHtmlEntitiesParser::GetCharForCode(unsigned code)
+{
+#if wxUSE_UNICODE
+    return (wxChar)code;
+#elif wxUSE_WCHAR_T
+    char buf[2];
+    wchar_t wbuf[2];
+    wbuf[0] = (wchar_t)code;
+    wbuf[1] = 0;
+    wxMBConv *conv = m_conv ? m_conv : &wxConvLocal;
+    if (conv->WC2MB(buf, wbuf, 1) == (size_t)-1)
+        return '?';
+    return buf[0];
+#else
+    return (code < 256) ? (wxChar)code : '?';

 #endif
 #endif

+}

 
 

+wxChar wxHtmlEntitiesParser::GetEntityChar(const wxString& entity)
+{
+    unsigned code = 0;
+
+    if (entity[0] == wxT('#'))
+    {
+        const wxChar *ent_s = entity.c_str();
+        const wxChar *format;
+
+        if (ent_s[1] == wxT('x') || ent_s[1] == wxT('X'))
+        {
+            format = wxT("%x");
+            ent_s++;
+        }
+        else
+            format = wxT("%u");
+        ent_s++;
+
+        if (wxSscanf(ent_s, format, &code) != 1)
+            code = 0;
+    }
+    else
+    {
+        static wxHtmlEntityInfo substitutions[] = {
+            { wxT("AElig"),198 },
+            { wxT("Aacute"),193 },
+            { wxT("Acirc"),194 },
+            { wxT("Agrave"),192 },
+            { wxT("Alpha"),913 },
+            { wxT("Aring"),197 },
+            { wxT("Atilde"),195 },
+            { wxT("Auml"),196 },
+            { wxT("Beta"),914 },
+            { wxT("Ccedil"),199 },
+            { wxT("Chi"),935 },
+            { wxT("Dagger"),8225 },
+            { wxT("Delta"),916 },
+            { wxT("ETH"),208 },
+            { wxT("Eacute"),201 },
+            { wxT("Ecirc"),202 },
+            { wxT("Egrave"),200 },
+            { wxT("Epsilon"),917 },
+            { wxT("Eta"),919 },
+            { wxT("Euml"),203 },
+            { wxT("Gamma"),915 },
+            { wxT("Iacute"),205 },
+            { wxT("Icirc"),206 },
+            { wxT("Igrave"),204 },
+            { wxT("Iota"),921 },
+            { wxT("Iuml"),207 },
+            { wxT("Kappa"),922 },
+            { wxT("Lambda"),923 },
+            { wxT("Mu"),924 },
+            { wxT("Ntilde"),209 },
+            { wxT("Nu"),925 },
+            { wxT("OElig"),338 },
+            { wxT("Oacute"),211 },
+            { wxT("Ocirc"),212 },
+            { wxT("Ograve"),210 },
+            { wxT("Omega"),937 },
+            { wxT("Omicron"),927 },
+            { wxT("Oslash"),216 },
+            { wxT("Otilde"),213 },
+            { wxT("Ouml"),214 },
+            { wxT("Phi"),934 },
+            { wxT("Pi"),928 },
+            { wxT("Prime"),8243 },
+            { wxT("Psi"),936 },
+            { wxT("Rho"),929 },
+            { wxT("Scaron"),352 },
+            { wxT("Sigma"),931 },
+            { wxT("THORN"),222 },
+            { wxT("Tau"),932 },
+            { wxT("Theta"),920 },
+            { wxT("Uacute"),218 },
+            { wxT("Ucirc"),219 },
+            { wxT("Ugrave"),217 },
+            { wxT("Upsilon"),933 },
+            { wxT("Uuml"),220 },
+            { wxT("Xi"),926 },
+            { wxT("Yacute"),221 },
+            { wxT("Yuml"),376 },
+            { wxT("Zeta"),918 },
+            { wxT("aacute"),225 },
+            { wxT("acirc"),226 },
+            { wxT("acute"),180 },
+            { wxT("aelig"),230 },
+            { wxT("agrave"),224 },
+            { wxT("alefsym"),8501 },
+            { wxT("alpha"),945 },
+            { wxT("amp"),38 },
+            { wxT("and"),8743 },
+            { wxT("ang"),8736 },
+            { wxT("aring"),229 },
+            { wxT("asymp"),8776 },
+            { wxT("atilde"),227 },
+            { wxT("auml"),228 },
+            { wxT("bdquo"),8222 },
+            { wxT("beta"),946 },
+            { wxT("brvbar"),166 },
+            { wxT("bull"),8226 },
+            { wxT("cap"),8745 },
+            { wxT("ccedil"),231 },
+            { wxT("cedil"),184 },
+            { wxT("cent"),162 },
+            { wxT("chi"),967 },
+            { wxT("circ"),710 },
+            { wxT("clubs"),9827 },
+            { wxT("cong"),8773 },
+            { wxT("copy"),169 },
+            { wxT("crarr"),8629 },
+            { wxT("cup"),8746 },
+            { wxT("curren"),164 },
+            { wxT("dArr"),8659 },
+            { wxT("dagger"),8224 },
+            { wxT("darr"),8595 },
+            { wxT("deg"),176 },
+            { wxT("delta"),948 },
+            { wxT("diams"),9830 },
+            { wxT("divide"),247 },
+            { wxT("eacute"),233 },
+            { wxT("ecirc"),234 },
+            { wxT("egrave"),232 },
+            { wxT("empty"),8709 },
+            { wxT("emsp"),8195 },
+            { wxT("ensp"),8194 },
+            { wxT("epsilon"),949 },
+            { wxT("equiv"),8801 },
+            { wxT("eta"),951 },
+            { wxT("eth"),240 },
+            { wxT("euml"),235 },
+            { wxT("euro"),8364 },
+            { wxT("exist"),8707 },
+            { wxT("fnof"),402 },
+            { wxT("forall"),8704 },
+            { wxT("frac12"),189 },
+            { wxT("frac14"),188 },
+            { wxT("frac34"),190 },
+            { wxT("frasl"),8260 },
+            { wxT("gamma"),947 },
+            { wxT("ge"),8805 },
+            { wxT("gt"),62 },
+            { wxT("hArr"),8660 },
+            { wxT("harr"),8596 },
+            { wxT("hearts"),9829 },
+            { wxT("hellip"),8230 },
+            { wxT("iacute"),237 },
+            { wxT("icirc"),238 },
+            { wxT("iexcl"),161 },
+            { wxT("igrave"),236 },
+            { wxT("image"),8465 },
+            { wxT("infin"),8734 },
+            { wxT("int"),8747 },
+            { wxT("iota"),953 },
+            { wxT("iquest"),191 },
+            { wxT("isin"),8712 },
+            { wxT("iuml"),239 },
+            { wxT("kappa"),954 },
+            { wxT("lArr"),8656 },
+            { wxT("lambda"),955 },
+            { wxT("lang"),9001 },
+            { wxT("laquo"),171 },
+            { wxT("larr"),8592 },
+            { wxT("lceil"),8968 },
+            { wxT("ldquo"),8220 },
+            { wxT("le"),8804 },
+            { wxT("lfloor"),8970 },
+            { wxT("lowast"),8727 },
+            { wxT("loz"),9674 },
+            { wxT("lrm"),8206 },
+            { wxT("lsaquo"),8249 },
+            { wxT("lsquo"),8216 },
+            { wxT("lt"),60 },
+            { wxT("macr"),175 },
+            { wxT("mdash"),8212 },
+            { wxT("micro"),181 },
+            { wxT("middot"),183 },
+            { wxT("minus"),8722 },
+            { wxT("mu"),956 },
+            { wxT("nabla"),8711 },
+            { wxT("nbsp"),160 },
+            { wxT("ndash"),8211 },
+            { wxT("ne"),8800 },
+            { wxT("ni"),8715 },
+            { wxT("not"),172 },
+            { wxT("notin"),8713 },
+            { wxT("nsub"),8836 },
+            { wxT("ntilde"),241 },
+            { wxT("nu"),957 },
+            { wxT("oacute"),243 },
+            { wxT("ocirc"),244 },
+            { wxT("oelig"),339 },
+            { wxT("ograve"),242 },
+            { wxT("oline"),8254 },
+            { wxT("omega"),969 },
+            { wxT("omicron"),959 },
+            { wxT("oplus"),8853 },
+            { wxT("or"),8744 },
+            { wxT("ordf"),170 },
+            { wxT("ordm"),186 },
+            { wxT("oslash"),248 },
+            { wxT("otilde"),245 },
+            { wxT("otimes"),8855 },
+            { wxT("ouml"),246 },
+            { wxT("para"),182 },
+            { wxT("part"),8706 },
+            { wxT("permil"),8240 },
+            { wxT("perp"),8869 },
+            { wxT("phi"),966 },
+            { wxT("pi"),960 },
+            { wxT("piv"),982 },
+            { wxT("plusmn"),177 },
+            { wxT("pound"),163 },
+            { wxT("prime"),8242 },
+            { wxT("prod"),8719 },
+            { wxT("prop"),8733 },
+            { wxT("psi"),968 },
+            { wxT("quot"),34 },
+            { wxT("rArr"),8658 },
+            { wxT("radic"),8730 },
+            { wxT("rang"),9002 },
+            { wxT("raquo"),187 },
+            { wxT("rarr"),8594 },
+            { wxT("rceil"),8969 },
+            { wxT("rdquo"),8221 },
+            { wxT("real"),8476 },
+            { wxT("reg"),174 },
+            { wxT("rfloor"),8971 },
+            { wxT("rho"),961 },
+            { wxT("rlm"),8207 },
+            { wxT("rsaquo"),8250 },
+            { wxT("rsquo"),8217 },
+            { wxT("sbquo"),8218 },
+            { wxT("scaron"),353 },
+            { wxT("sdot"),8901 },
+            { wxT("sect"),167 },
+            { wxT("shy"),173 },
+            { wxT("sigma"),963 },
+            { wxT("sigmaf"),962 },
+            { wxT("sim"),8764 },
+            { wxT("spades"),9824 },
+            { wxT("sub"),8834 },
+            { wxT("sube"),8838 },
+            { wxT("sum"),8721 },
+            { wxT("sup"),8835 },
+            { wxT("sup1"),185 },
+            { wxT("sup2"),178 },
+            { wxT("sup3"),179 },
+            { wxT("supe"),8839 },
+            { wxT("szlig"),223 },
+            { wxT("tau"),964 },
+            { wxT("there4"),8756 },
+            { wxT("theta"),952 },
+            { wxT("thetasym"),977 },
+            { wxT("thinsp"),8201 },
+            { wxT("thorn"),254 },
+            { wxT("tilde"),732 },
+            { wxT("times"),215 },
+            { wxT("trade"),8482 },
+            { wxT("uArr"),8657 },
+            { wxT("uacute"),250 },
+            { wxT("uarr"),8593 },
+            { wxT("ucirc"),251 },
+            { wxT("ugrave"),249 },
+            { wxT("uml"),168 },
+            { wxT("upsih"),978 },
+            { wxT("upsilon"),965 },
+            { wxT("uuml"),252 },
+            { wxT("weierp"),8472 },
+            { wxT("xi"),958 },
+            { wxT("yacute"),253 },
+            { wxT("yen"),165 },
+            { wxT("yuml"),255 },
+            { wxT("zeta"),950 },
+            { wxT("zwj"),8205 },
+            { wxT("zwnj"),8204 },
+            {NULL, 0}};
+        static size_t substitutions_cnt = 0;
+
+        if (substitutions_cnt == 0)
+            while (substitutions[substitutions_cnt].code != 0)
+                substitutions_cnt++;
+
+        wxHtmlEntityInfo *info;
+        info = (wxHtmlEntityInfo*) bsearch(entity.c_str(), substitutions,
+                                           substitutions_cnt,
+                                           sizeof(wxHtmlEntityInfo),
+                                           compar_entity);
+        if (info)
+            code = info->code;
+    }
+
+    if (code == 0)
+        return wxT('?');
+    else
+        return GetCharForCode(code);
+}
+
+#endif