GPQAPP

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// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: https://codemirror.net/LICENSE
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(function(mod) {
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  if (typeof exports == "object" && typeof module == "object") // CommonJS
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    mod(require("../../lib/codemirror"));
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  else if (typeof define == "function" && define.amd) // AMD
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    define(["../../lib/codemirror"], mod);
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  else // Plain browser env
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    mod(CodeMirror);
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})(function(CodeMirror) {
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  CodeMirror.defineOption("showTrailingSpace", false, function(cm, val, prev) {
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    if (prev == CodeMirror.Init) prev = false;
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    if (prev && !val)
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      cm.removeOverlay("trailingspace");
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    else if (!prev && val)
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      cm.addOverlay({
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        token: function(stream) {
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          for (var l = stream.string.length, i = l; i && /\s/.test(stream.string.charAt(i - 1)); --i) {}
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          if (i > stream.pos) { stream.pos = i; return null; }
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          stream.pos = l;
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          return "trailingspace";
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        },
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        name: "trailingspace"
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      });
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  });
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});
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