/*
* UndoReplaceLines - undo the replacement of a group of lines
*/
vi_rc UndoReplaceLines( linenum sline, linenum eline )
{
vi_rc rc;
fcb_list fcblist;
if( !EditFlags.Undo || UndoStack == NULL ) {
return( ERR_NO_ERR );
}
rc = GetCopyOfLineRange( sline, eline, &fcblist );
if( rc != ERR_NO_ERR ) {
return( rc );
}
StartUndoGroup( UndoStack );
UndoDeleteFcbs( sline - 1, &fcblist, UndoStack );
UndoInsert( sline, eline, UndoStack );
EndUndoGroup( UndoStack );
return( ERR_NO_ERR );
} /* UndoReplaceLines */
/*
* DoGenericFilter - filter some crap
*/
vi_rc DoGenericFilter( linenum s, linenum e, const char *cmd )
{
fcb *cfcb, *tfcb;
line *cline;
vi_rc rc;
char filtin[_MAX_PATH], filtout[_MAX_PATH];
fcb_list fcblist;
int fh;
rc = ModificationTest();
if( rc != ERR_NO_ERR ) {
return( rc );
}
/*
* filter on a line
*/
rc = GetCopyOfLineRange( s, e, &fcblist );
if( rc != ERR_NO_ERR ) {
return( rc );
}
/*
* get file
*/
MakeTmpPath( filtin, FILTER_FILE_NAME );
fh = mkstemp( filtin );
if( fh == -1 )
return( ERR_FILE_OPEN );
/*
* now, dump this crap to a tmp file
*/
for( cfcb = fcblist.head; cfcb != NULL; cfcb = tfcb ) {
FetchFcb( cfcb );
for( cline = cfcb->lines.head; cline != NULL; cline = cline->next ) {
write( fh, cline->data, strlen( cline->data ) );
#if defined( __UNIX__ )
write( fh, "\n", 1 );
#else
write( fh, "\r\n", 2 );
#endif
}
tfcb = cfcb->next;
FcbFree( cfcb );
}
close( fh );
MakeTmpPath( filtout, FILTER_FILE_NAME );
fh = mkstemp( filtout );
if( fh == -1 ) {
remove( filtin );
return( ERR_FILE_OPEN );
}
close( fh );
/*
* shell out to the given command
*/
ExecCmd( filtin, filtout, cmd );
StartUndoGroup( UndoStack );
rc = DeleteLineRange( s, e, 0 );
if( rc == ERR_NO_ERR ) {
ReadAFile( s - 1, filtout );
Message1( "%l lines filtered through %s", e - s + 1, cmd );
}
EndUndoGroup( UndoStack );
/*
* cleanup
*/
if( rc == ERR_NO_ERR ) {
rc = DO_NOT_CLEAR_MESSAGE_WINDOW;
}
remove( filtin );
remove( filtout );
return( rc );
} /* DoGenericFilter */
/*
* ProcessEx - process an ex command
*/
vi_rc ProcessEx( linenum n1, linenum n2, bool n2f, int tkn, const char *data )
{
vi_rc rc = ERR_INVALID_COMMAND, i;
char word[MAX_STR];
linenum addr, tlines;
fcb *cfcb;
line *cline;
fcb_list fcblist;
GetNextWord1( data, word );
data = word;
if( GetAddress( &data, &addr ) != ERR_NO_ERR ) {
addr = -1;
}
tlines = n2 - n1 + 1;
switch( tkn ) {
case EX_T_APPEND:
if( !EditFlags.ExMode ) {
return( ERR_ONLY_VALID_IN_EX_MODE );
}
if( !n2f ) {
rc = Append( n1, true );
}
break;
case EX_T_CHANGE:
if( !EditFlags.ExMode ) {
return( ERR_ONLY_VALID_IN_EX_MODE );
}
StartUndoGroup( UndoStack );
rc = DeleteLineRange( n1, n2, 0 );
if( rc != ERR_NO_ERR ) {
EndUndoGroup( UndoStack );
break;
}
rc = Append( n1 - 1, false );
if( rc != ERR_NO_ERR ) {
EndUndoGroup( UndoStack );
break;
}
break;
case EX_T_COPY:
if( addr < 0 || IsPastLastLine( addr ) ) {
return( ERR_INVALID_ADDRESS );
}
i = GetCopyOfLineRange( n1, n2, &fcblist );
if( i ) {
break;
}
rc = InsertLines( addr, &fcblist, UndoStack );
GoToLineNoRelCurs( addr );
if( rc == ERR_NO_ERR ) {
Message1( strCmmsg, tlines, "copied", addr );
}
break;
case EX_T_INSERT:
if( !EditFlags.ExMode ) {
return( ERR_ONLY_VALID_IN_EX_MODE );
}
if( !n2f ) {
rc = Append( n1 - 1, true );
}
break;
case EX_T_JOIN:
if( SaveAndResetFilePos( n1 ) != ERR_NO_ERR ) {
rc = ERR_NO_SUCH_LINE;
break;
}
if( tlines == 1 ) {
n2 = n1 + 1;
tlines = 2;
}
SetRepeatCount( tlines - 1 );
rc = JoinCurrentLineToNext();
RestoreCurrentFilePos();
GoToLineNoRelCurs( n1 );
if( rc == ERR_NO_ERR ) {
Message1( "lines %l to %l joined", n1, n2 );
}
break;
case EX_T_LIST:
if( !EditFlags.ExMode ) {
return( ERR_ONLY_VALID_IN_EX_MODE );
}
for( rc = CGimmeLinePtr( n1, &cfcb, &cline ); rc == ERR_NO_ERR; rc = CGimmeNextLinePtr( &cfcb, &cline ) ) {
if( EditFlags.LineNumbers ) {
MyPrintf( "%M %s\n", n1, cline->data );
} else {
MyPrintf( "%s\n", cline->data );
}
if( n1 >= n2 ) {
break;
}
n1++;
}
break;
case EX_T_MARK:
rc = SetGenericMark( n1, 1, C2VIKEY( word[0] ) );
break;
case EX_T_MOVE:
if( addr < 0 || IsPastLastLine( addr ) ) {
return( ERR_INVALID_ADDRESS );
}
SavebufNumber = WORK_SAVEBUF;
StartUndoGroup( UndoStack );
rc = DeleteLineRange( n1, n2, SAVEBUF_FLAG );
if( SavebufNumber != WORK_SAVEBUF ) {
/* if this changes, the command will fail
* this could be caused by checking out a read-only file
* so fix the deleted text and give an error message
*/
DoUndo();
return( ERR_INVALID_COMMAND );
}
if( rc != ERR_NO_ERR ) {
EndUndoGroup( UndoStack );
break;
}
if( addr > n2 ) {
addr -= tlines;
} else if( addr >= n1 && addr <= n2 ) {
addr = n1;
}
rc = InsertLines( addr, &WorkSavebuf->u.fcbs, UndoStack );
EndUndoGroup( UndoStack );
GoToLineNoRelCurs( addr );
if( rc == ERR_NO_ERR ) {
Message1( strCmmsg, tlines, "moved", addr );
}
break;
case EX_T_UNDO:
rc = DoUndo();
break;
case EX_T_UNDO_DMT:
rc = DoUndoUndo();
break;
case EX_T_EQUALS:
Message1( "%l", n1 );
rc = ERR_NO_ERR;
break;
case EX_T_VERSION:
rc = DoVersion();
break;
case EX_T_VISUAL:
case EX_T_VISUAL_DMT:
if( EditFlags.LineDisplay ) {
ScreenPage( -1 );
EditFlags.ExMode = false;
EditFlags.LineDisplay = false;
EditFlags.ClockActive = true;
ReDisplayScreen();
DoVersion();
}
if( word[0] != '\0' ) {
rc = EditFile( word, ( tkn == EX_T_VISUAL_DMT ) );
} else {
rc = ERR_NO_ERR;
}
break;
}
return( rc );
} /* ProcessEx */
