Index: src/cmd/devdraw/x11-srv.c
===================================================================
--- a/src/cmd/devdraw/x11-srv.c
+++ b/src/cmd/devdraw/x11-srv.c
@@ -573,6 +573,12 @@
 		}
 
 		switch(k) {
+		case XK_Shift_L:
+			if(xev->type == KeyPress)
+				c |= ShiftMask;
+			else
+				c &= ~ShiftMask;
+			goto kbutton;
 		case XK_Control_L:
 			if(xev->type == KeyPress)
 				c |= ControlMask;
@@ -580,7 +586,6 @@
 				c &= ~ControlMask;
 			goto kbutton;
 		case XK_Alt_L:
-		case XK_Shift_L:
 			if(xev->type == KeyPress)
 				c |= Mod1Mask;
 			else
@@ -590,6 +595,8 @@
 			if(m.buttons || kbuttons) {
 				altdown = 0; // used alt
 				kbuttons = 0;
+				if(c & ShiftMask)
+					kbuttons |= 1;
 				if(c & ControlMask)
 					kbuttons |= 2;
 				if(c & Mod1Mask)
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://codereview.appspot.com/download/issue138410044_1.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://codereview.appspot.com/download/issue138410044_1.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>