X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3444e4a8f9c29ab501a65d2a0ffcd0c04de52371..22a35096a0a9c3fe4d3d32b8d68a361126ef9677:/src/html/helpdata.cpp

diff --git a/src/html/helpdata.cpp b/src/html/helpdata.cpp
index 5f9d39ea19..65d3da7f4c 100644
--- a/src/html/helpdata.cpp
+++ b/src/html/helpdata.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        helpdata.cpp
+// Name:        src/html/helpdata.cpp
 // Purpose:     wxHtmlHelpData
 // Notes:       Based on htmlhelp.cpp, implementing a monolithic
 //              HTML Help controller class,  by Vaclav Slavik
@@ -9,19 +9,13 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "helpdata.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
-#include "wx/defs.h"
-
 #if wxUSE_HTML && wxUSE_STREAMS
 
 #ifndef WXPRECOMP
@@ -37,7 +31,6 @@
 #include "wx/busyinfo.h"
 #include "wx/encconv.h"
 #include "wx/fontmap.h"
-#include "wx/log.h"
 #include "wx/html/htmlpars.h"
 #include "wx/html/htmldefs.h"
 #include "wx/html/htmlfilt.h"
@@ -78,6 +71,11 @@ wxHtmlHelpIndexCompareFunc(wxHtmlHelpDataItem **a, wxHtmlHelpDataItem **b)
     wxHtmlHelpDataItem *ia = *a;
     wxHtmlHelpDataItem *ib = *b;
 
+    if (ia == NULL)
+        return -1;
+    if (ib == NULL)
+        return 1;
+
     if (ia->parent == ib->parent)
     {
         return ia->name.CmpNoCase(ib->name);
@@ -293,7 +291,7 @@ bool wxHtmlHelpData::LoadMSProject(wxHtmlBookRecord *book, wxFileSystem& fsys,
     HP_TagHandler *handler = new HP_TagHandler(book);
     parser.AddTagHandler(handler);
 
-    f = ( contentsfile.IsEmpty() ? (wxFSFile*) NULL : fsys.OpenFile(contentsfile) );
+    f = ( contentsfile.empty() ? (wxFSFile*) NULL : fsys.OpenFile(contentsfile) );
     if (f)
     {
         buf.clear();
@@ -307,7 +305,7 @@ bool wxHtmlHelpData::LoadMSProject(wxHtmlBookRecord *book, wxFileSystem& fsys,
         wxLogError(_("Cannot open contents file: %s"), contentsfile.c_str());
     }
 
-    f = ( indexfile.IsEmpty() ? (wxFSFile*) NULL : fsys.OpenFile(indexfile) );
+    f = ( indexfile.empty() ? (wxFSFile*) NULL : fsys.OpenFile(indexfile) );
     if (f)
     {
         buf.clear();
@@ -316,7 +314,7 @@ bool wxHtmlHelpData::LoadMSProject(wxHtmlBookRecord *book, wxFileSystem& fsys,
         handler->Reset(m_index);
         parser.Parse(buf);
     }
-    else if (!indexfile.IsEmpty())
+    else if (!indexfile.empty())
     {
         wxLogError(_("Cannot open index file: %s"), indexfile.c_str());
     }
@@ -461,17 +459,17 @@ bool wxHtmlHelpData::SaveCachedBook(wxHtmlBookRecord *book, wxOutputStream *f)
         }
         else
         {
-            int cnt = 0;
+            int cnt2 = 0;
             wxHtmlHelpDataItem *parent = m_index[i].parent;
             for (int j = i-1; j >= 0; j--)
             {
                 if (m_index[j].book == book && m_index[j].level > 0)
-                    cnt++;
+                    cnt2++;
                 if (&m_index[j] == parent)
                     break;
             }
-            wxASSERT(cnt > 0);
-            CacheWriteInt32(f, cnt);
+            wxASSERT(cnt2 > 0);
+            CacheWriteInt32(f, cnt2);
         }
     }
     return true;
@@ -487,7 +485,7 @@ void wxHtmlHelpData::SetTempDir(const wxString& path)
         if (wxIsAbsolutePath(path)) m_tempPath = path;
         else m_tempPath = wxGetCwd() + _T("/") + path;
 
-        if (m_tempPath[m_tempPath.Length() - 1] != _T('/'))
+        if (m_tempPath[m_tempPath.length() - 1] != _T('/'))
             m_tempPath << _T('/');
     }
 }
@@ -517,7 +515,7 @@ bool wxHtmlHelpData::AddBookParam(const wxFSFile& bookfile,
     int IndexOld = m_index.size(),
         ContentsOld = m_contents.size();
 
-    if (!path.IsEmpty())
+    if (!path.empty())
         fsys.ChangePathTo(path, true);
 
     size_t booksCnt = m_bookRecords.GetCount();
@@ -642,7 +640,7 @@ bool wxHtmlHelpData::AddBook(const wxString& book)
 #endif
             s = fsys.FindFirst(book + wxT("#zip:*.hhp"), wxFILE);
 
-        while (!s.IsEmpty())
+        while (!s.empty())
         {
             if (AddBook(s)) rt = true;
             s = fsys.FindNext();
@@ -681,7 +679,7 @@ bool wxHtmlHelpData::AddBook(const wxString& book)
         lineptr = ReadLine(lineptr, linebuf, 300);
 
         for (wxChar *ch = linebuf; *ch != wxT('\0') && *ch != wxT('='); ch++)
-           *ch = tolower(*ch);
+           *ch = (wxChar)wxTolower(*ch);
 
         if (wxStrstr(linebuf, _T("title=")) == linebuf)
             title = linebuf + wxStrlen(_T("title="));
@@ -695,9 +693,11 @@ bool wxHtmlHelpData::AddBook(const wxString& book)
             charset = linebuf + wxStrlen(_T("charset="));
     } while (lineptr != NULL);
 
-    wxFontEncoding enc;
-    if (charset == wxEmptyString) enc = wxFONTENCODING_SYSTEM;
-    else enc = wxFontMapper::Get()->CharsetToEncoding(charset);
+    wxFontEncoding enc = wxFONTENCODING_SYSTEM;
+#if wxUSE_FONTMAP
+    if (charset != wxEmptyString)
+        enc = wxFontMapper::Get()->CharsetToEncoding(charset);
+#endif
 
     bool rtval = AddBookParam(*fi, enc,
                               title, contents, index, start, fsys.GetPath());
@@ -981,47 +981,94 @@ static inline bool WHITESPACE(wxChar c)
     return c == _T(' ') || c == _T('\n') || c == _T('\r') || c == _T('\t');
 }
 
+// replace continuous spaces by one single space
+static inline wxString CompressSpaces(const wxString & str)
+{
+    wxString buf;
+    buf.reserve( str.size() );
+
+    bool space_counted = false;
+    for( const wxChar * pstr = str.c_str(); *pstr; ++pstr )
+    {
+        wxChar ch = *pstr;
+        if( WHITESPACE( ch ) )
+        {
+            if( space_counted )
+            {
+                continue;
+            }
+            ch = _T(' ');
+            space_counted = true;
+        }
+        else
+        {
+            space_counted = false;
+        }
+        buf += ch;
+    }
+
+    return buf;
+}
+
 bool wxHtmlSearchEngine::Scan(const wxFSFile& file)
 {
     wxASSERT_MSG(!m_Keyword.empty(), wxT("wxHtmlSearchEngine::LookFor must be called before scanning!"));
 
-    int i, j;
-    int wrd = m_Keyword.Length();
-    bool found = false;
     wxHtmlFilterHTML filter;
-    wxString tmp = filter.ReadFile(file);
-    int lng = tmp.length();
-    const wxChar *buf = tmp.c_str();
+    wxString bufStr = filter.ReadFile(file);
 
     if (!m_CaseSensitive)
-        tmp.LowerCase();
-
-    const wxChar *kwd = m_Keyword.c_str();
+        bufStr.LowerCase();
 
-    if (m_WholeWords)
-    {
-        for (i = 0; i < lng - wrd; i++)
+    {   // remove html tags
+        wxString bufStrCopy;
+        bufStrCopy.reserve( bufStr.size() );
+        bool insideTag = false;
+        for (const wxChar * pBufStr = bufStr.c_str(); *pBufStr; ++pBufStr)
         {
-            if (WHITESPACE(buf[i])) continue;
-            j = 0;
-            while ((j < wrd) && (buf[i + j] == kwd[j])) j++;
-            if (j == wrd && WHITESPACE(buf[i + j])) { found = true; break; }
+            wxChar c = *pBufStr;
+            if (insideTag)
+            {
+                if (c == _T('>'))
+                {
+                    insideTag = false;
+                    // replace the tag by an empty space
+                    c = _T(' ');
+                }
+                else
+                    continue;
+            }
+            else if (c == _T('<'))
+            {
+                wxChar nextCh = *(pBufStr + 1);
+                if (nextCh == _T('/') || !WHITESPACE(nextCh))
+                {
+                    insideTag = true;
+                    continue;
+                }
+            }
+            bufStrCopy += c;
         }
+        bufStr.swap( bufStrCopy );
     }
 
-    else
+    wxString keyword = m_Keyword;
+
+    if (m_WholeWords)
     {
-        for (i = 0; i < lng - wrd; i++)
-        {
-            j = 0;
-            while ((j < wrd) && (buf[i + j] == kwd[j])) j++;
-            if (j == wrd) { found = true; break; }
-        }
+        // insert ' ' at the beginning and at the end
+        keyword.insert( 0, _T(" ") );
+        keyword.append( _T(" ") );
+        bufStr.insert( 0, _T(" ") );
+        bufStr.append( _T(" ") );
     }
 
-    return found;
-}
-
+    // remove continuous spaces
+    keyword = CompressSpaces( keyword );
+    bufStr = CompressSpaces( bufStr );
 
+    // finally do the search
+    return bufStr.find( keyword ) != wxString::npos;
+}
 
 #endif