Module 561627

function(t,e,r){"use strict";var n=r(473479),i=r(762710),o=r(797686);function a(t,e,r,a,s,u,c){var l=r.getStartOffset(),f=r.getEndOffset(),p=t.__get(s).getMutability(),h=c?l:f;if("MUTABLE"===p)return r;var d=i(e,s).filter(function(t){return h<=t.end&&h>=t.start});1!=d.length&&o(!1);var g=d[0];if("IMMUTABLE"===p)return r.merge({anchorOffset:g.start,focusOffset:g.end,isBackward:!1});u||(c?f=g.end:l=g.start);var y=n.getRemovalRange(l,f,e.getText().slice(g.start,g.end),g.start,a);return r.merge({anchorOffset:y.start,focusOffset:y.end,isBackward:!1})}t.exports=function(t,e,r,n,i){var o=n.getStartOffset(),s=n.getEndOffset(),u=e.getEntityAt(o),c=r.getEntityAt(s-1);if(!u&&!c)return n;var l=n;if(u&&u===c)l=a(t,e,l,i,u,!0,!0);else if(u&&c){var f=a(t,e,l,i,u,!1,!0),p=a(t,r,l,i,c,!1,!1);l=l.merge({anchorOffset:f.getAnchorOffset(),focusOffset:p.getFocusOffset(),isBackward:!1})}else if(u){var h=a(t,e,l,i,u,!1,!0);l=l.merge({anchorOffset:h.getStartOffset(),isBackward:!1})}else if(c){var d=a(t,r,l,i,c,!1,!1);l=l.merge({focusOffset:d.getEndOffset(),isBackward:!1})}return l}}