utils/HelpGen/src/ifcontext.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        No names yet.
   3 // Purpose:     Contrib. demo
   4 // Author:      Aleksandras Gluchovas
   5 // Modified by:
   6 // Created:     27/12/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Aleskandars Gluchovas
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #  pragma implementation "ifcontext.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx/wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/wx.h"
  25 #endif
  26
  27 #ifndef __DARWIN__
  28 #  include <malloc.h>
  29 #endif
  30 #include <stdio.h>
  31
  32 #include "ifcontext.h"
  33
  34 /***** Implementation for class spInterFileContext *****/
  35
  36 size_t spInterFileContext::GetFileNo( const string& fname )
  37 {
  38     size_t i;
  39         for ( i = 0; i != mFiles.size(); ++i )
  40                 if ( fname == mFiles[i] )
  41             return i;
  42
  43     wxFAIL_MSG("File not found in array in function spInterFileContext::GetFileNo()");
  44         return 0;
  45 }
  46
  47 size_t spInterFileContext::GetFileNoOfContext( spContext& ctx )
  48 {
  49         spContext* pCtx = ctx.GetEnclosingContext( SP_CTX_FILE );
  50
  51         // DBG:: outer-file context should be present
  52         wxASSERT( pCtx && pCtx->GetType() == SP_CTX_FILE );
  53
  54         return GetFileNo( ((spFile*)pCtx)->mFileName );
  55 }
  56
  57 /*** public interface ***/
  58
  59 spInterFileContext::spInterFileContext()
  60 {}
  61
  62 spInterFileContext::~spInterFileContext()
  63 {}
  64
  65 void spInterFileContext::AddFile( const string& fname, const string& content )
  66 {
  67         mFiles.push_back( fname );
  68         mContents.push_back( content );
  69 }
  70
  71 void spInterFileContext::RemoveContext( spContext& ctx )
  72 {
  73         wxASSERT( ctx.PositionIsKnown() ); // DBG:: should be checked by-user code
  74
  75         size_t fNo = GetFileNoOfContext( ctx );
  76
  77         mDeletionMarks.push_back( spBookmark( ctx.mSrcOffset, ctx.mContextLength, fNo ) );
  78 }
  79
  80 void spInterFileContext::InsertBookmarkSorted( BookmarkListT& lst, spBookmark& mark )
  81 {
  82         for( size_t i = 0; i != lst.size(); ++i )
  83
  84                 if ( lst[i].mFrom > mark.mFrom )
  85                 {
  86                         lst.insert( &lst[i], mark );
  87                         return;
  88                 }
  89
  90         lst.push_back( mark );
  91 }
  92
  93 void spInterFileContext::DoAppendSourceFragment( string& source,
  94                                                                                                  string& result,
  95                                                                                                  size_t  pos, size_t len )
  96 {
  97         mFiltered.erase( mFiltered.begin(), mFiltered.end() );
  98
  99         size_t i;
 100
 101         for( i = 0; i != mDeletionMarks.size(); ++i )
 102         {
 103                 spBookmark& mark = mDeletionMarks[i];
 104
 105                 if ( mark.mFileNo == mCurFileNo &&
 106                          mark.mFrom >= pos && mark.mFrom < pos + len )
 107
 108                          InsertBookmarkSorted( mFiltered, mark );
 109         }
 110
 111         size_t cur = pos;
 112
 113         for( i = 0; i != mFiltered.size(); ++ i )
 114         {
 115                 spBookmark& mark = mFiltered[i];
 116
 117                 result.append( source, cur, ( (size_t)mark.mFrom - cur ) );
 118
 119                 cur = size_t( mark.mFrom + mark.mLen );
 120
 121                 if ( cur >= pos + len ) // check if we've overstepped the current source-fragment
 122                 {
 123 //                      wxASSERT(0); // DBG:: with current imp. this should not happen
 124             wxFAIL_MSG("Overstepped the current source fragment in function\nspInterFileContext::DoAppendSourceFragment()");
 125                         cur = pos + len; break;
 126                 }
 127         }
 128
 129         result.append( source, cur, ( pos + len ) - cur );
 130 }
 131
 132 void spInterFileContext::GenerateContextBody( spContext& ctx,
 133                                                                                           string&    source,
 134                                                                                           string&    result,
 135                                                                                           size_t&    lastSavedPos,
 136                                                                                           size_t&    lastKnownPos )
 137 {
 138         if ( ctx.PositionIsKnown() )
 139
 140                 lastKnownPos = ctx.mSrcOffset;
 141
 142         if ( ctx.IsVirtualContext() )
 143         {
 144                 // add fragment accumulated before this context
 145
 146                 DoAppendSourceFragment( source, result,
 147                                                             size_t(lastSavedPos),
 148                                                             size_t(lastKnownPos - lastSavedPos) );
 149
 150                 // add context body
 151
 152                 result += ctx.GetVirtualContextBody();
 153
 154                 lastSavedPos = lastKnownPos;
 155
 156                 if ( ctx.PositionIsKnown() )
 157                 {
 158                         if ( ctx.VitualContextHasChildren() )
 159                         {
 160                                 lastKnownPos = ctx.mSrcOffset + ctx.mHeaderLength;
 161
 162                                 lastSavedPos = lastKnownPos;
 163                         }
 164                         else
 165                         {
 166                                 lastKnownPos = ctx.mSrcOffset + ctx.mContextLength;
 167
 168                                 lastSavedPos = lastKnownPos;
 169
 170                                 return; // have not children
 171                         }
 172                 }
 173         }
 174
 175         MMemberListT& lst = ctx.GetMembers();
 176
 177         for( size_t i = 0; i != lst.size(); ++i )
 178
 179                 GenerateContextBody( *lst[i], source, result, lastSavedPos, lastKnownPos );
 180
 181         if ( ctx.IsVirtualContext() )
 182         {
 183                 if ( ctx.VitualContextHasChildren() &&
 184
 185                          ctx.GetFooterOfVirtualContextBody() != "" )
 186                 {
 187                         // append the reminder space after children of the context
 188
 189                         DoAppendSourceFragment( result, source,
 190                                                                         size_t(lastSavedPos),
 191                                                                         size_t(lastKnownPos - lastSavedPos) );
 192
 193                         // add footer
 194                         result += ctx.GetFooterOfVirtualContextBody();
 195
 196                         lastKnownPos = ctx.mSrcOffset + ctx.mContextLength;
 197
 198                         lastSavedPos = lastKnownPos;
 199                 }
 200         }
 201
 202         if ( ctx.PositionIsKnown() )
 203
 204                 lastKnownPos = ctx.mSrcOffset + ctx.mContextLength;
 205 }
 206
 207 void spInterFileContext::GenrateContents()
 208 {
 209         MMemberListT& lst = GetMembers();
 210
 211         for( size_t f = 0; f != lst.size(); ++f )
 212         {
 213                 string& fname = ((spFile*)lst[f])->mFileName;
 214
 215                 size_t fileNo = GetFileNo( fname );
 216
 217                 string& source = mContents[ fileNo ];
 218
 219                 string result;
 220
 221                 size_t lastKnownPos = 0, // the begining of the file is always "known"
 222                            lastSavedPos = 0;
 223
 224                 mCurFileNo = fileNo;
 225
 226                 GenerateContextBody( *lst[f], source, result, lastSavedPos, lastKnownPos );
 227
 228                 // the end of file is always known
 229
 230                 lastKnownPos = mContents[ fileNo ].length();
 231
 232                 // append the reminder
 233
 234                 DoAppendSourceFragment( source, result,
 235                                                             size_t(lastSavedPos),
 236                                                             size_t(lastKnownPos - lastSavedPos) );
 237
 238                 // replace original contnet with newly generated one
 239
 240                 mContents[ fileNo ] = result;
 241         }
 242 }
 243
 244 void spInterFileContext::ParseContents( SourceParserPlugin* pPlugin )
 245 {
 246         mDeletionMarks.erase( mDeletionMarks.begin(), mDeletionMarks.end() );
 247
 248         RemoveChildren(); // clean up top-level context
 249
 250         mParser.SetPlugin( pPlugin );
 251
 252         for( size_t i = 0; i != mFiles.size(); ++i )
 253         {
 254                 char* s = (char*)(mContents[i].c_str());
 255
 256                 spFile* pFCtx = mParser.Parse( s, s + mContents[i].length() );
 257
 258                 pFCtx->mFileName = mFiles[i];
 259
 260                 AddMember( pFCtx );
 261         }
 262 }
 263
 264 void spInterFileContext::WriteToFiles()
 265 {
 266         for( size_t i = 0; i != mFiles.size(); ++i )
 267         {
 268                 FILE* fp = fopen( mFiles[i].c_str(), "w+t" );
 269
 270                 if ( int(fp) > 0 )
 271                 {
 272                         fwrite( mContents[i].c_str(), sizeof(char), mContents[i].length(), fp );
 273
 274                         fclose( fp );
 275                 }
 276         }
 277 }
 278
 279 string spInterFileContext::GetBody( spContext* pCtx )
 280 {
 281         wxASSERT( pCtx->PositionIsKnown() ); // DBG:: should be checked by-user code
 282
 283         string& source = mContents[ GetFileNoOfContext( *pCtx ) ];
 284
 285         return string( source.c_str() + pCtx->mSrcOffset, pCtx->mContextLength );
 286 }
 287
 288 string spInterFileContext::GetHeader( spContext* pCtx )
 289 {
 290         wxASSERT( pCtx->PositionIsKnown() );   // DBG:: should be checked by-user code
 291
 292         wxASSERT( pCtx->mHeaderLength != -1 ); // DBG:: -/-
 293
 294         string& source = mContents[ GetFileNoOfContext( *pCtx ) ];
 295
 296         return string( source.c_str() + pCtx->mSrcOffset, pCtx->mHeaderLength );
 297 }