f35822af10
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5512 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
745 lines
22 KiB
C++
745 lines
22 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: helpdata.cpp
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// Purpose: wxHtmlHelpData
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// Notes: Based on htmlhelp.cpp, implementing a monolithic
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// HTML Help controller class, by Vaclav Slavik
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// Author: Harm van der Heijden and Vaclav Slavik
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// RCS-ID: $Id$
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// Copyright: (c) Harm van der Heijden and Vaclav Slavik
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/defs.h"
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#if wxUSE_HTML
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#ifndef WXPRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/html/helpdata.h"
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#include "wx/tokenzr.h"
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#include "wx/wfstream.h"
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#include "wx/busyinfo.h"
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#include "wx/html/htmlpars.h"
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#include "wx/html/htmldefs.h"
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#include "wx/arrimpl.cpp"
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WX_DEFINE_OBJARRAY(wxHtmlBookRecArray)
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//-----------------------------------------------------------------------------
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// static helper functions
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//-----------------------------------------------------------------------------
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// Reads one line, stores it into buf and returns pointer to new line or NULL.
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static char* ReadLine(char *line, char *buf)
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{
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char *writeptr = buf, *readptr = line;
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while (*readptr != 0 && *readptr != '\r' && *readptr != '\n') *(writeptr++) = *(readptr++);
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*writeptr = 0;
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while (*readptr == '\r' || *readptr == '\n') readptr++;
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if (*readptr == 0) return NULL;
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else return readptr;
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}
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static int LINKAGEMODE IndexCompareFunc(const void *a, const void *b)
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{
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return wxStrcmp(((wxHtmlContentsItem*)a) -> m_Name, ((wxHtmlContentsItem*)b) -> m_Name);
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}
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//-----------------------------------------------------------------------------
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// HP_Parser
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//-----------------------------------------------------------------------------
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class HP_Parser : public wxHtmlParser
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{
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public:
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void AddText(const char* WXUNUSED(text)) { }
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wxObject* GetProduct() { return NULL; }
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};
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//-----------------------------------------------------------------------------
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// HP_TagHandler
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//-----------------------------------------------------------------------------
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class HP_TagHandler : public wxHtmlTagHandler
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{
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private:
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wxString m_Name, m_Page;
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int m_Level;
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int m_ID;
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int m_Index;
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wxHtmlContentsItem *m_Items;
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int m_ItemsCnt;
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wxHtmlBookRecord *m_Book;
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public:
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HP_TagHandler(wxHtmlBookRecord *b) : wxHtmlTagHandler() {m_Book = b; m_Items = NULL; m_ItemsCnt = 0; m_Name = m_Page = wxEmptyString; m_Level = 0; }
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wxString GetSupportedTags() { return wxT("UL,OBJECT,PARAM"); }
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bool HandleTag(const wxHtmlTag& tag);
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void WriteOut(wxHtmlContentsItem*& array, int& size);
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void ReadIn(wxHtmlContentsItem* array, int size);
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};
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bool HP_TagHandler::HandleTag(const wxHtmlTag& tag)
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{
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if (tag.GetName() == wxT("UL")) {
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m_Level++;
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ParseInner(tag);
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m_Level--;
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return TRUE;
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}
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else if (tag.GetName() == wxT("OBJECT")) {
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m_Name = m_Page = wxEmptyString;
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ParseInner(tag);
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if (!m_Page.IsEmpty())
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/* should be 'if (tag.GetParam("TYPE") == "text/sitemap")'
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but this works fine. Valid HHW's file may contain only two
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object tags:
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<OBJECT type="text/site properties">
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<param name="ImageType" value="Folder">
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</OBJECT>
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or
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<OBJECT type="text/sitemap">
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<param name="Name" value="main page">
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<param name="Local" value="another.htm">
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</OBJECT>
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We're interested in the latter. !m_Page.IsEmpty() is valid
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condition because text/site properties does not contain Local param
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*/
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{
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if (m_ItemsCnt % wxHTML_REALLOC_STEP == 0)
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m_Items = (wxHtmlContentsItem*) realloc(m_Items, (m_ItemsCnt + wxHTML_REALLOC_STEP) * sizeof(wxHtmlContentsItem));
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m_Items[m_ItemsCnt].m_Level = m_Level;
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m_Items[m_ItemsCnt].m_ID = m_ID;
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m_Items[m_ItemsCnt].m_Page = new wxChar[m_Page.Length() + 1];
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wxStrcpy(m_Items[m_ItemsCnt].m_Page, m_Page.c_str());
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m_Items[m_ItemsCnt].m_Name = new wxChar [m_Name.Length() + 1];
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wxStrcpy(m_Items[m_ItemsCnt].m_Name, m_Name.c_str());
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m_Items[m_ItemsCnt].m_Book = m_Book;
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m_ItemsCnt++;
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}
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return TRUE;
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}
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else { // "PARAM"
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if (m_Name == wxEmptyString && tag.GetParam(wxT("NAME")) == wxT("Name")) m_Name = tag.GetParam(wxT("VALUE"));
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if (tag.GetParam(wxT("NAME")) == wxT("Local")) m_Page = tag.GetParam(wxT("VALUE"));
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if (tag.GetParam(wxT("NAME")) == wxT("ID")) tag.ScanParam(wxT("VALUE"), wxT("%i"), &m_ID);
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return FALSE;
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}
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}
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void HP_TagHandler::WriteOut(wxHtmlContentsItem*& array, int& size)
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{
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array = m_Items;
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size = m_ItemsCnt;
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m_Items = NULL;
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m_ItemsCnt = 0;
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}
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void HP_TagHandler::ReadIn(wxHtmlContentsItem* array, int size)
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{
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m_Items = array;
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m_ItemsCnt = size;
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}
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//-----------------------------------------------------------------------------
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// wxHtmlHelpData
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//-----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxHtmlHelpData, wxObject)
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wxHtmlHelpData::wxHtmlHelpData()
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{
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m_TempPath = wxEmptyString;
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m_Contents = NULL;
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m_ContentsCnt = 0;
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m_Index = NULL;
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m_IndexCnt = 0;
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}
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wxHtmlHelpData::~wxHtmlHelpData()
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{
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int i;
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m_BookRecords.Empty();
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if (m_Contents) {
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for (i = 0; i < m_ContentsCnt; i++) {
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delete[] m_Contents[i].m_Page;
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delete[] m_Contents[i].m_Name;
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}
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free(m_Contents);
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}
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if (m_Index) {
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for (i = 0; i < m_IndexCnt; i++) {
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delete[] m_Index[i].m_Page;
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delete[] m_Index[i].m_Name;
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}
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free(m_Index);
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}
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}
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bool wxHtmlHelpData::LoadMSProject(wxHtmlBookRecord *book, wxFileSystem& fsys, const wxString& indexfile, const wxString& contentsfile)
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{
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wxFSFile *f;
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char *buf;
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int sz;
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wxString string;
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HP_Parser parser;
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HP_TagHandler *handler = new HP_TagHandler(book);
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parser.AddTagHandler(handler);
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f = ( contentsfile.IsEmpty() ? 0 : fsys.OpenFile(contentsfile) );
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if (f) {
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sz = f -> GetStream() -> GetSize();
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buf = new char[sz + 1];
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buf[sz] = 0;
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f -> GetStream() -> Read(buf, sz);
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delete f;
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handler -> ReadIn(m_Contents, m_ContentsCnt);
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parser.Parse(buf);
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handler -> WriteOut(m_Contents, m_ContentsCnt);
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delete[] buf;
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}
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f = ( indexfile.IsEmpty() ? 0 : fsys.OpenFile(indexfile) );
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if (f) {
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sz = f -> GetStream() -> GetSize();
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buf = new char[sz + 1];
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buf[sz] = 0;
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f -> GetStream() -> Read(buf, sz);
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delete f;
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handler -> ReadIn(m_Index, m_IndexCnt);
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parser.Parse(buf);
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handler -> WriteOut(m_Index, m_IndexCnt);
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delete[] buf;
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}
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return TRUE;
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}
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#if wxUSE_UNICODE
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#define READ_STRING(f, s, lng) { char tmpc; for (int i = 0; i < lng; i++) { f -> Read(&tmpc, 1); s[i] = (wxChar)tmpc;} }
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#define WRITE_STRING(f, s, lng) { char tmpc; for (int i = 0; i < lng; i++) { tmpc = (char)s[i]; f -> Write(&tmpc, 1);} }
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#else
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#define READ_STRING(f, s, lng) f -> Read(s, lng * sizeof(char));
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#define WRITE_STRING(f, s, lng) f -> Write(s, lng * sizeof(char));
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#endif
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#define CURRENT_CACHED_BOOK_VERSION 1
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bool wxHtmlHelpData::LoadCachedBook(wxHtmlBookRecord *book, wxInputStream *f)
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{
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int i, st;
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wxInt32 x;
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wxInt32 version;
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/* load header - version info : */
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f -> Read(&x, sizeof(x));
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version = wxINT32_SWAP_ON_BE(x);
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if (version != CURRENT_CACHED_BOOK_VERSION) return FALSE;
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// NOTE: when adding new version, please ensure backward compatibility!
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/* load contents : */
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f -> Read(&x, sizeof(x));
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st = m_ContentsCnt;
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m_ContentsCnt += wxINT32_SWAP_ON_BE(x);
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m_Contents = (wxHtmlContentsItem*) realloc(m_Contents,
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(m_ContentsCnt / wxHTML_REALLOC_STEP + 1) *
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wxHTML_REALLOC_STEP * sizeof(wxHtmlContentsItem));
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for (i = st; i < m_ContentsCnt; i++) {
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f -> Read(&x, sizeof(x));
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m_Contents[i].m_Level = wxINT32_SWAP_ON_BE(x);
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f -> Read(&x, sizeof(x));
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m_Contents[i].m_ID = wxINT32_SWAP_ON_BE(x);
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f -> Read(&x, sizeof(x)); x = wxINT32_SWAP_ON_BE(x);
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m_Contents[i].m_Name = new wxChar[x];
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READ_STRING(f, m_Contents[i].m_Name, x);
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f -> Read(&x, sizeof(x)); x = wxINT32_SWAP_ON_BE(x);
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m_Contents[i].m_Page = new wxChar[x];
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READ_STRING(f, m_Contents[i].m_Page, x);
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m_Contents[i].m_Book = book;
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}
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/* load index : */
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f -> Read(&x, sizeof(x));
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st = m_IndexCnt;
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m_IndexCnt += wxINT32_SWAP_ON_BE(x);
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m_Index = (wxHtmlContentsItem*) realloc(m_Index, (m_IndexCnt / wxHTML_REALLOC_STEP + 1) *
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wxHTML_REALLOC_STEP * sizeof(wxHtmlContentsItem));
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for (i = st; i < m_IndexCnt; i++) {
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f -> Read(&x, sizeof(x)); x = wxINT32_SWAP_ON_BE(x);
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m_Index[i].m_Name = new wxChar[x];
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READ_STRING(f, m_Index[i].m_Name, x);
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f -> Read(&x, sizeof(x)); x = wxINT32_SWAP_ON_BE(x);
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m_Index[i].m_Page = new wxChar[x];
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READ_STRING(f, m_Index[i].m_Page, x);
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m_Index[i].m_Book = book;
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}
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return TRUE;
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}
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bool wxHtmlHelpData::SaveCachedBook(wxHtmlBookRecord *book, wxOutputStream *f)
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{
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int i;
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wxInt32 x;
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/* save header - version info : */
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x = wxINT32_SWAP_ON_BE(CURRENT_CACHED_BOOK_VERSION);
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f -> Write(&x, sizeof(x));
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/* save contents : */
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x = 0;
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for (i = 0; i < m_ContentsCnt; i++) if (m_Contents[i].m_Book == book && m_Contents[i].m_Level > 0) x++;
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x = wxINT32_SWAP_ON_BE(x);
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f -> Write(&x, sizeof(x));
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for (i = 0; i < m_ContentsCnt; i++) {
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if (m_Contents[i].m_Book != book || m_Contents[i].m_Level == 0) continue;
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x = wxINT32_SWAP_ON_BE(m_Contents[i].m_Level);
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f -> Write(&x, sizeof(x));
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x = wxINT32_SWAP_ON_BE(m_Contents[i].m_ID);
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f -> Write(&x, sizeof(x));
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x = wxINT32_SWAP_ON_BE(wxStrlen(m_Contents[i].m_Name) + 1);
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f -> Write(&x, sizeof(x));
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WRITE_STRING(f, m_Contents[i].m_Name, x);
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x = wxINT32_SWAP_ON_BE(wxStrlen(m_Contents[i].m_Page) + 1);
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f -> Write(&x, sizeof(x));
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WRITE_STRING(f, m_Contents[i].m_Page, x);
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}
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/* save index : */
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x = 0;
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for (i = 0; i < m_IndexCnt; i++) if (m_Index[i].m_Book == book && m_Index[i].m_Level > 0) x++;
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x = wxINT32_SWAP_ON_BE(x);
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f -> Write(&x, sizeof(x));
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for (i = 0; i < m_IndexCnt; i++) {
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if (m_Index[i].m_Book != book || m_Index[i].m_Level == 0) continue;
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x = wxINT32_SWAP_ON_BE(wxStrlen(m_Index[i].m_Name) + 1);
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f -> Write(&x, sizeof(x));
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WRITE_STRING(f, m_Index[i].m_Name, x);
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x = wxINT32_SWAP_ON_BE(wxStrlen(m_Index[i].m_Page) + 1);
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f -> Write(&x, sizeof(x));
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WRITE_STRING(f, m_Index[i].m_Page, x);
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}
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return TRUE;
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}
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void wxHtmlHelpData::SetTempDir(const wxString& path)
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{
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if (path == wxEmptyString) m_TempPath = path;
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else {
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if (wxIsAbsolutePath(path)) m_TempPath = path;
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else m_TempPath = wxGetCwd() + _T("/") + path;
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if (m_TempPath[m_TempPath.Length() - 1] != _T('/'))
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m_TempPath << _T('/');
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}
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}
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bool wxHtmlHelpData::AddBookParam(const wxFSFile& bookfile,
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const wxString& title, const wxString& contfile,
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const wxString& indexfile, const wxString& deftopic,
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const wxString& path)
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{
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wxFileSystem fsys;
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wxFSFile *fi;
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wxHtmlBookRecord *bookr;
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if (! path.IsEmpty())
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fsys.ChangePathTo(path, TRUE);
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bookr = new wxHtmlBookRecord(fsys.GetPath(), title, deftopic);
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if (m_ContentsCnt % wxHTML_REALLOC_STEP == 0)
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m_Contents = (wxHtmlContentsItem*) realloc(m_Contents, (m_ContentsCnt + wxHTML_REALLOC_STEP) * sizeof(wxHtmlContentsItem));
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m_Contents[m_ContentsCnt].m_Level = 0;
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m_Contents[m_ContentsCnt].m_ID = 0;
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m_Contents[m_ContentsCnt].m_Page = new wxChar[deftopic.Length() + 1];
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wxStrcpy(m_Contents[m_ContentsCnt].m_Page, deftopic.c_str());
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m_Contents[m_ContentsCnt].m_Name = new wxChar [title.Length() + 1];
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wxStrcpy(m_Contents[m_ContentsCnt].m_Name, title.c_str());
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m_Contents[m_ContentsCnt].m_Book = bookr;
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// store the contents index for later
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int cont_start = m_ContentsCnt++;
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// Try to find cached binary versions:
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// 1. save file as book, but with .hhp.cached extension
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// 2. same as 1. but in temp path
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// 3. otherwise or if cache load failed, load it from MS.
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fi = fsys.OpenFile(bookfile.GetLocation() + wxT(".cached"));
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if (fi == NULL ||
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fi -> GetModificationTime() < bookfile.GetModificationTime() ||
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!LoadCachedBook(bookr, fi -> GetStream()))
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{
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if (fi != NULL) delete fi;
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fi = fsys.OpenFile(m_TempPath + wxFileNameFromPath(bookfile.GetLocation()) + wxT(".cached"));
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if (m_TempPath == wxEmptyString || fi == NULL ||
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fi -> GetModificationTime() < bookfile.GetModificationTime() ||
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!LoadCachedBook(bookr, fi -> GetStream()))
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{
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LoadMSProject(bookr, fsys, indexfile, contfile);
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if (m_TempPath != wxEmptyString)
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{
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wxFileOutputStream *outs = new wxFileOutputStream(m_TempPath +
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wxFileNameFromPath(bookfile.GetLocation()) + wxT(".cached"));
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SaveCachedBook(bookr, outs);
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delete outs;
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}
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}
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}
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if (fi != NULL) delete fi;
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// Now store the contents range
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bookr->SetContentsRange(cont_start, m_ContentsCnt);
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m_BookRecords.Add(bookr);
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if (m_IndexCnt > 0)
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qsort(m_Index, m_IndexCnt, sizeof(wxHtmlContentsItem), IndexCompareFunc);
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return TRUE;
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}
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bool wxHtmlHelpData::AddBook(const wxString& book)
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{
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if (book.Right(4).Lower() == wxT(".zip") ||
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book.Right(4).Lower() == wxT(".htb") /*html book*/)
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{
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wxFileSystem fsys;
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wxString s;
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bool rt = FALSE;
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s = fsys.FindFirst(book + wxT("#zip:") + wxT("*.hhp"), wxFILE);
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while (!s.IsEmpty())
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{
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if (AddBook(s)) rt = TRUE;
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s = fsys.FindNext();
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}
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return rt;
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}
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else
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{
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wxFSFile *fi;
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wxFileSystem fsys;
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wxInputStream *s;
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wxString bookFull;
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int sz;
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char *buff, *lineptr;
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char linebuf[300];
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wxString title = _("noname"),
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safetitle,
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start = wxEmptyString,
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contents = wxEmptyString, index = wxEmptyString;
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if (wxIsAbsolutePath(book)) bookFull = book;
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else bookFull = wxGetCwd() + "/" + book;
|
|
|
|
fi = fsys.OpenFile(bookFull);
|
|
if (fi == NULL) return FALSE;
|
|
fsys.ChangePathTo(bookFull);
|
|
s = fi -> GetStream();
|
|
sz = s -> GetSize();
|
|
buff = new char[sz + 1];
|
|
buff[sz] = 0;
|
|
s -> Read(buff, sz);
|
|
lineptr = buff;
|
|
|
|
do {
|
|
lineptr = ReadLine(lineptr, linebuf);
|
|
|
|
if (strstr(linebuf, "Title=") == linebuf)
|
|
title = linebuf + strlen("Title=");
|
|
if (strstr(linebuf, "Default topic=") == linebuf)
|
|
start = linebuf + strlen("Default topic=");
|
|
if (strstr(linebuf, "Index file=") == linebuf)
|
|
index = linebuf + strlen("Index file=");
|
|
if (strstr(linebuf, "Contents file=") == linebuf)
|
|
contents = linebuf + strlen("Contents file=");
|
|
} while (lineptr != NULL);
|
|
delete[] buff;
|
|
|
|
bool rtval = AddBookParam(*fi, title, contents, index, start, fsys.GetPath());
|
|
delete fi;
|
|
return rtval;
|
|
}
|
|
}
|
|
|
|
wxString wxHtmlHelpData::FindPageByName(const wxString& x)
|
|
{
|
|
int cnt;
|
|
int i;
|
|
wxFileSystem fsys;
|
|
wxFSFile *f;
|
|
wxString url(wxEmptyString);
|
|
|
|
/* 1. try to open given file: */
|
|
|
|
cnt = m_BookRecords.GetCount();
|
|
for (i = 0; i < cnt; i++) {
|
|
f = fsys.OpenFile(m_BookRecords[i].GetBasePath() + x);
|
|
if (f) {
|
|
url = m_BookRecords[i].GetBasePath() + x;
|
|
delete f;
|
|
return url;
|
|
}
|
|
}
|
|
|
|
|
|
/* 2. try to find a book: */
|
|
|
|
for (i = 0; i < cnt; i++) {
|
|
if (m_BookRecords[i].GetTitle() == x) {
|
|
url = m_BookRecords[i].GetBasePath() + m_BookRecords[i].GetStart();
|
|
return url;
|
|
}
|
|
}
|
|
|
|
/* 3. try to find in contents: */
|
|
|
|
cnt = m_ContentsCnt;
|
|
for (i = 0; i < cnt; i++) {
|
|
if (wxStrcmp(m_Contents[i].m_Name, x) == 0) {
|
|
url = m_Contents[i].m_Book -> GetBasePath() + m_Contents[i].m_Page;
|
|
return url;
|
|
}
|
|
}
|
|
|
|
|
|
/* 4. try to find in index: */
|
|
|
|
cnt = m_IndexCnt;
|
|
for (i = 0; i < cnt; i++) {
|
|
if (wxStrcmp(m_Index[i].m_Name, x) == 0) {
|
|
url = m_Index[i].m_Book -> GetBasePath() + m_Index[i].m_Page;
|
|
return url;
|
|
}
|
|
}
|
|
|
|
return url;
|
|
}
|
|
|
|
wxString wxHtmlHelpData::FindPageById(int id)
|
|
{
|
|
int i;
|
|
wxString url(wxEmptyString);
|
|
|
|
for (i = 0; i < m_ContentsCnt; i++) {
|
|
if (m_Contents[i].m_ID == id) {
|
|
url = m_Contents[i].m_Book -> GetBasePath() + m_Contents[i].m_Page;
|
|
return url;
|
|
}
|
|
}
|
|
|
|
return url;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------
|
|
// wxHtmlSearchStatus functions
|
|
//----------------------------------------------------------------------------------
|
|
|
|
wxHtmlSearchStatus::wxHtmlSearchStatus(wxHtmlHelpData* data, const wxString& keyword,
|
|
bool case_sensitive, bool whole_words_only,
|
|
const wxString& book)
|
|
{
|
|
m_Data = data;
|
|
m_Keyword = keyword;
|
|
wxHtmlBookRecord* bookr = NULL;
|
|
if (book != wxEmptyString) {
|
|
// we have to search in a specific book. Find it first
|
|
int i, cnt = data->m_BookRecords.GetCount();
|
|
for (i = 0; i < cnt; i++)
|
|
if (data->m_BookRecords[i].GetTitle() == book) {
|
|
bookr = &(data->m_BookRecords[i]);
|
|
m_CurIndex = bookr->GetContentsStart();
|
|
m_MaxIndex = bookr->GetContentsEnd();
|
|
break;
|
|
}
|
|
// check; we won't crash if the book doesn't exist, but it's Bad Anyway.
|
|
wxASSERT(bookr);
|
|
}
|
|
if (! bookr) {
|
|
// no book specified; search all books
|
|
m_CurIndex = 0;
|
|
m_MaxIndex = m_Data->m_ContentsCnt;
|
|
}
|
|
m_Engine.LookFor(keyword, case_sensitive, whole_words_only);
|
|
m_Active = (m_CurIndex < m_MaxIndex);
|
|
m_LastPage = NULL;
|
|
}
|
|
|
|
bool wxHtmlSearchStatus::Search()
|
|
{
|
|
wxFSFile *file;
|
|
int i = m_CurIndex; // shortcut
|
|
bool found = FALSE;
|
|
wxChar *thepage;
|
|
|
|
if (!m_Active) {
|
|
// sanity check. Illegal use, but we'll try to prevent a crash anyway
|
|
wxASSERT(m_Active);
|
|
return FALSE;
|
|
}
|
|
|
|
m_Name = wxEmptyString;
|
|
m_ContentsItem = NULL;
|
|
thepage = m_Data->m_Contents[i].m_Page;
|
|
|
|
m_Active = (++m_CurIndex < m_MaxIndex);
|
|
// check if it is same page with different anchor:
|
|
if (m_LastPage != NULL)
|
|
{
|
|
wxChar *p1, *p2;
|
|
for (p1 = thepage, p2 = m_LastPage;
|
|
*p1 != 0 && *p1 != _T('#') && *p1 == *p2; p1++, p2++) {}
|
|
|
|
m_LastPage = thepage;
|
|
|
|
if (*p1 == 0 || *p1 == _T('#'))
|
|
return FALSE;
|
|
}
|
|
else m_LastPage = thepage;
|
|
|
|
wxFileSystem fsys;
|
|
file = fsys.OpenFile(m_Data->m_Contents[i].m_Book -> GetBasePath() + thepage);
|
|
if (file)
|
|
{
|
|
if (m_Engine.Scan(file -> GetStream())) {
|
|
m_Name = m_Data->m_Contents[i].m_Name;
|
|
m_ContentsItem = m_Data->m_Contents + i;
|
|
found = TRUE;
|
|
}
|
|
delete file;
|
|
}
|
|
return found;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//--------------------------------------------------------------------------------
|
|
// wxSearchEngine
|
|
//--------------------------------------------------------------------------------
|
|
|
|
void wxSearchEngine::LookFor(const wxString& keyword, bool case_sensitive, bool whole_words_only)
|
|
{
|
|
m_CaseSensitive = case_sensitive;
|
|
m_WholeWords = whole_words_only;
|
|
if (m_Keyword) delete[] m_Keyword;
|
|
m_Keyword = new wxChar[keyword.Length() + 1];
|
|
wxStrcpy(m_Keyword, keyword.c_str());
|
|
|
|
if (!m_CaseSensitive)
|
|
for (int i = wxStrlen(m_Keyword) - 1; i >= 0; i--)
|
|
if ((m_Keyword[i] >= wxT('A')) && (m_Keyword[i] <= wxT('Z')))
|
|
m_Keyword[i] += wxT('a') - wxT('A');
|
|
}
|
|
|
|
|
|
|
|
#define WHITESPACE(c) (c == ' ' || c == '\n' || c == '\r' || c == '\t')
|
|
|
|
bool wxSearchEngine::Scan(wxInputStream *stream)
|
|
{
|
|
wxASSERT_MSG(m_Keyword != NULL, wxT("wxSearchEngine::LookFor must be called before scanning!"));
|
|
|
|
int i, j;
|
|
int lng = stream ->GetSize();
|
|
int wrd = wxStrlen(m_Keyword);
|
|
bool found = FALSE;
|
|
char *buf = new char[lng + 1];
|
|
stream -> Read(buf, lng);
|
|
buf[lng] = 0;
|
|
|
|
if (!m_CaseSensitive)
|
|
for (i = 0; i < lng; i++)
|
|
if ((buf[i] >= 'A') && (buf[i] <= 'Z')) buf[i] += 'a' - 'A';
|
|
|
|
if (m_WholeWords)
|
|
{
|
|
for (i = 0; i < lng - wrd; i++) {
|
|
if (WHITESPACE(buf[i])) continue;
|
|
j = 0;
|
|
while ((j < wrd) && (buf[i + j] == m_Keyword[j])) j++;
|
|
if (j == wrd && WHITESPACE(buf[i + j])) {found = TRUE; break; }
|
|
}
|
|
}
|
|
|
|
else
|
|
{
|
|
for (i = 0; i < lng - wrd; i++) {
|
|
j = 0;
|
|
while ((j < wrd) && (buf[i + j] == m_Keyword[j])) j++;
|
|
if (j == wrd) {found = TRUE; break; }
|
|
}
|
|
}
|
|
|
|
delete[] buf;
|
|
return found;
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|