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1 #include "stdafx.h"
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2 #include "wtl-pp.h"
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3
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4 void CEditPPHooks::DeleteLastWord( CEdit wnd, bool bForward ) {
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5 if ( wnd.GetWindowLong(GWL_STYLE) & ES_READONLY ) return;
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6 CString buffer;
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7 if ( wnd.GetWindowText(buffer) <= 0 ) return;
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8 const int len = buffer.GetLength();
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9 int selStart = len, selEnd = len;
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10 wnd.GetSel(selStart, selEnd);
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11 if ( selStart < 0 || selStart > len ) selStart = len; // sanity
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12 if ( selEnd < selStart ) selEnd = selStart; // sanity
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13 int work = selStart;
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14 if ( work == selEnd ) {
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15 // Only do our stuff if there is nothing yet selected. Otherwise first delete selection.
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16 if (bForward) {
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17 // go forward (ctrl+del)
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18 if (work < len && isSpecial(buffer[work])) { // linebreaks etc?
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19 do ++ work; while( work < len && isSpecial(buffer[work]));
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20 } else {
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21 // delete apparent spacing
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22 while ( work < len && isWordDelimiter(buffer[work])) ++ work;
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23 // delete apparent word
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24 while ( work < len && (!isWordDelimiter(buffer[work]) && !isSpecial(buffer[work]))) ++ work;
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25 }
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26
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27 if ( selEnd < work ) {
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28 wnd.SetSel(selEnd, work, TRUE );
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29 wnd.ReplaceSel( TEXT(""), TRUE );
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30 }
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31 } else {
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32 // go backward (ctrl+backspace)
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33 if ( work > 0 && isSpecial(buffer[work-1])) { // linebreaks etc?
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34 do --work; while( work > 0 && isSpecial(buffer[work-1]));
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35 } else {
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36 // delete apparent spacing
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37 while( work > 0 && isWordDelimiter(buffer[work-1]) ) --work;
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38 // delete apparent word
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39 while( work > 0 && (!isWordDelimiter(buffer[work-1]) && !isSpecial(buffer[work-1]))) --work;
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40 }
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41 if ( selEnd > work ) {
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42 wnd.SetSel(work, selEnd, TRUE );
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43 wnd.ReplaceSel( TEXT(""), TRUE );
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44 }
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45 }
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46 }
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47 }
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