regex101: Primeros N Caracteres

Regular Expression

^[\s\S]{0,30}

New

</head>
<body>
<div id="kJAQ_" class="z-temp"><div id="zk_proc" class="z-loading"><div class="z-loading-indicator"><span class="z-loading-icon"></span>Processing...</div></div></div>
<script class="z-runonce" type="text/javascript">
zkmx(
[0,'kJAQ_',{dt:'z_oec',cu:'/EfectoresWeb',uu:'/EfectoresWeb/zkau',ru:'/login.isp'},[
['zul.utl.Style','zk_comp_1',{visible:false,src:'/EfectoresWeb/css/PamiStyle.css'},[]],
['zul.wgt.Div','zk_comp_2',{id:'div',style:'width:90%;margin:0 auto 0 auto;align:center',prolog:'\n\t'},[
['zul.wgt.Include','zk_comp_3',{prolog:'\n\t\t',_xcnt:'<div id="kJAQ0" class="z-temp"><div id="zk_proc" class="z-loading"><div class="z-loading-indicator"><span class="z-loading-icon"></span>Processing...</div></div></div>',_childjs:function(){zkmx(
[0,'kJAQ0',{ow:'zk_comp_3'},[
['zul.wnd.Window','zk_comp_38',{id:'winHeader',$$onSize:false,$$onMaximize:false,$$onOpen:false,$$onMinimize:false,$$onZIndex:false,$onClose:true,$$onMove:false,prolog:'\n\t'},[
['zul.box.Box','zk_comp_39',{},[
['zul.box.Box','zk_comp_40',{id:'hbox_header',align:'end'},[
['zul.wgt.Image','zk_comp_41',{src:'/EfectoresWeb/img/top.jpg'},[]]],'horizontal']],'vertical']]]]]);
}},[]],
['zul.wnd.Window','zk_comp_4',{id:'winLogin',$onOK:true,$onClose:true,prolog:'\n\t \t'},[
['zul.box.Box','zk_comp_5',{},[
['zul.box.Box','zk_comp_6',{id:'hbox_menu'},[],'horizontal'],
['zul.wgt.Groupbox','zk_comp_7',{$$onOpen:false,width:'890px',closable:false},[
['zul.wgt.Caption','zk_comp_8',{id:'caption_login',sclass:'z-title',label:'Login'},[]],
['zul.grid.Grid','zk_comp_9',{$$onRender:true,$

Extraction

</head>
<body>
<div id="kJAQ_" class="z-temp"><div id="zk_proc" class="z-loading"><div class="z-loading-indicator"><span class="z-loading-icon"></span>Processing...</div></div></div>
<script class="z-runonce" type="text/javascript">
zkmx(
[0,'kJAQ_',{dt:'z_oec',cu:'/EfectoresWeb',uu:'/EfectoresWeb/zkau',ru:'/login.isp'},[
['zul.utl.Style','zk_comp_1',{visible:false,src:'/EfectoresWeb/css/PamiStyle.css'},[]],
['zul.wgt.Div','zk_comp_2',{id:'div',style:'width:90%;margin:0 auto 0 auto;align:center',prolog:'\n\t'},[
['zul.wgt.Include','zk_comp_3',{prolog:'\n\t\t',_xcnt:'<div id="kJAQ0" class="z-temp"><div id="zk_proc" class="z-loading"><div class="z-loading-indicator"><span class="z-loading-icon"></span>Processing...</div></div></div>',_childjs:function(){zkmx(
[0,'kJAQ0',{ow:'zk_comp_3'},[
['zul.wnd.Window','zk_comp_38',{id:'winHeader',$$onSize:false,$$onMaximize:false,$$onOpen:false,$$onMinimize:false,$$onZIndex:false,$onClose:true,$$onMove:false,prolog:'\n\t'},[
['zul.box.Box','zk_comp_39',{},[
['zul.box.Box','zk_comp_40',{id:'hbox_header',align:'end'},[
['zul.wgt.Image','zk_comp_41',{src:'/EfectoresWeb/img/top.jpg'},[]]],'horizontal']],'vertical']]]]]);
}},[]],
['zul.wnd.Window','zk_comp_4',{id:'winLogin',$onOK:true,$onClose:true,prolog:'\n\t \t'},[
['zul.box.Box','zk_comp_5',{},[
['zul.box.Box','zk_comp_6',{id:'hbox_menu'},[],'horizontal'],
['zul.wgt.Groupbox','zk_comp_7',{$$onOpen:false,width:'890px',closable:false},[
['zul.wgt.Caption','zk_comp_8',{id:'caption_login',sclass:'z-title',label:'Login'},[]],
['zul.grid.Grid','zk_comp_9',{$$onRender:true,$