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function(t,e,r){"use strict";var n=r(868361),i=r(63996),o=r(573750),a=o.isPlatform("Mac OS X"),s=a&&o.isBrowser("Firefox < 29"),u=n.hasCommandModifier,c=n.isCtrlKeyCommand;function l(t){return a&&t.altKey||c(t)}t.exports=function(t){switch(t.keyCode){case 66:return u(t)?"bold":null;case 68:return c(t)?"delete":null;case 72:return c(t)?"backspace":null;case 73:return u(t)?"italic":null;case 74:return u(t)?"code":null;case 75:return a&&c(t)?"secondary-cut":null;case 77:case 79:return c(t)?"split-block":null;case 84:return a&&c(t)?"transpose-characters":null;case 85:return u(t)?"underline":null;case 87:return a&&c(t)?"backspace-word":null;case 89:if(c(t))return a?"secondary-paste":"redo";return null;case 90:return(u(t)?t.shiftKey?"redo":"undo":null)||null;case i.RETURN:return"split-block";case i.DELETE:return!a&&t.shiftKey?null:l(t)?"delete-word":"delete";case i.BACKSPACE:return u(t)&&a?"backspace-to-start-of-line":l(t)?"backspace-word":"backspace";case i.LEFT:return s&&u(t)?"move-selection-to-start-of-block":null;case i.RIGHT:return s&&u(t)?"move-selection-to-end-of-block":null;default:return null}}}