| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 | <!doctype html><html>  <head>    <meta charset="utf-8">    <title>CodeMirror: Breakpoint Demo</title>    <link rel="stylesheet" href="../lib/codemirror.css">    <script src="../lib/codemirror.js"></script>    <script src="../mode/javascript/javascript.js"></script>    <link rel="stylesheet" href="../doc/docs.css">    <style type="text/css">      .breakpoints {width: .8em;}      .breakpoint { color: #822; }      .CodeMirror {border: 1px solid #aaa;}    </style>  </head>  <body>    <h1>CodeMirror: Breakpoint demo</h1>    <form><textarea id="code" name="code">var editor = CodeMirror.fromTextArea(document.getElementById("code"), {  lineNumbers: true,  gutters: ["CodeMirror-linenumbers", "breakpoints"]});editor.on("gutterClick", function(cm, n) {  var info = cm.lineInfo(n);  cm.setGutterMarker(n, "breakpoints", info.markers ? null : makeMarker());});function makeMarker() {  var marker = document.createElement("div");  marker.innerHTML = "●";  marker.className = "breakpoint";  return marker;}</textarea></form><p>Click the line-number gutter to add or remove 'breakpoints'.</p>    <script>var editor = CodeMirror.fromTextArea(document.getElementById("code"), {  lineNumbers: true,  gutters: ["CodeMirror-linenumbers", "breakpoints"]});editor.on("gutterClick", function(cm, n) {  var info = cm.lineInfo(n);  cm.setGutterMarker(n, "breakpoints", info.gutterMarkers ? null : makeMarker());});function makeMarker() {  var marker = document.createElement("div");  marker.style.color = "#822";  marker.innerHTML = "●";  return marker;}    </script>  </body></html>
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