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1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
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2 // Distributed under an MIT license: https://codemirror.net/5/LICENSE
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3
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4 (function(mod) {
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5 if (typeof exports == "object" && typeof module == "object") // CommonJS
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6 mod(require("../../lib/codemirror"));
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7 else if (typeof define == "function" && define.amd) // AMD
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8 define(["../../lib/codemirror"], mod);
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9 else // Plain browser env
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10 mod(CodeMirror);
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11 })(function(CodeMirror) {
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12 CodeMirror.defineOption("showTrailingSpace", false, function(cm, val, prev) {
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13 if (prev == CodeMirror.Init) prev = false;
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14 if (prev && !val)
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15 cm.removeOverlay("trailingspace");
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16 else if (!prev && val)
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17 cm.addOverlay({
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18 token: function(stream) {
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19 for (var l = stream.string.length, i = l; i && /\s/.test(stream.string.charAt(i - 1)); --i) {}
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20 if (i > stream.pos) { stream.pos = i; return null; }
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21 stream.pos = l;
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22 return "trailingspace";
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23 },
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24 name: "trailingspace"
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25 });
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26 });
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27 });
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