vi_rc ChangeCase( range *r )
{
linenum curr;
vi_rc rc;
long total;
const char *msg;
UndoReplaceLines( r->start.line, r->end.line );
if( r->start.line == r->end.line ) {
rc = changeOneLine( r->start.line, r->start.column, r->end.column );
msg = MSG_CHARACTERS;
total = r->end.column - r->start.column + 1;
} else {
rc = changeToEndOfLine( r->start.line, r->start.column );
if( rc != ERR_NO_ERR ) {
return( rc );
}
for( curr = r->start.line + 1; curr < r->end.line; curr++ ) {
rc = changeToEndOfLine( curr, 0 );
if( rc != ERR_NO_ERR ) {
return( rc );
}
}
rc = changeOneLine( r->end.line, 0, r->end.column );
msg = MSG_LINES;
total = r->end.line - r->start.line + 1;
}
EditFlags.Dotable = true;
DCDisplayAllLines();
Message1( "case toggled for %l %s", total, msg );
Modified( true );
return( DO_NOT_CLEAR_MESSAGE_WINDOW );
} /* ChangeCase */
/*
* Shift - shove a tab in/out over a line range
*/
vi_rc Shift( linenum s, linenum e, char dir, bool msgflag )
{
int shv;
linenum fullcnt = 0;
vi_rc rc;
/*
* set up undo
*/
if( rc = ModificationTest() ) {
return( rc );
}
rc = UndoReplaceLines( s, e );
if( rc != ERR_NO_ERR ) {
return( rc );
}
/*
* now, point to start line
*/
rc = SaveAndResetFilePos( s );
if( rc != ERR_NO_ERR ) {
return( rc );
}
/*
* process all lines
*/
for( CurrentPos.line = s; CurrentPos.line <= e; CurrentPos.line++ ) {
/*
* Add/Subtract leading tab space
*/
GetCurrentLine();
shv = ShiftWidth;
if( dir != '>' ) {
shv *= -1;
}
if( AddLeadingTabSpace( &WorkLine->len, WorkLine->data, shv ) ) {
++fullcnt;
}
ReplaceCurrentLine();
if( CurrentPos.line != e ) {
rc = CGimmeNextLinePtr( &CurrentFcb, &CurrentLine );
if( rc != ERR_NO_ERR ) {
RestoreCurrentFilePos();
return( rc );
}
}
}
/*
* done, say so and go back
*/
RestoreCurrentFilePos();
if( msgflag ) {
Message1( "%l lines %c'ed", e - s + 1, dir );
if( fullcnt > 0 ) {
Message2( "%l full lines not processed", fullcnt );
}
}
if( CurrentPos.line >= s && CurrentPos.line <= e ) {
CheckCurrentColumn();
}
DCDisplayAllLines();
SetWindowCursor();
Modified( TRUE );
return( DO_NOT_CLEAR_MESSAGE_WINDOW );
} /* Shift */
