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TiddlyWiki5/plugins/tiddlywiki/codemirror-trailingspace/files/addon/edit/trailingspace.js
Tavin Cole 4e7a6ffc22
Add codemirror option to show trailing space (#7493)
* codemirror edit/trailingspace addon (default off)

* refactor as codemirror-trailingspace plugin

* copy cm-trailingspace styles from cm demo
2023-05-27 18:28:27 +02:00

28 lines
1006 B
JavaScript

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/5/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
CodeMirror.defineOption("showTrailingSpace", false, function(cm, val, prev) {
if (prev == CodeMirror.Init) prev = false;
if (prev && !val)
cm.removeOverlay("trailingspace");
else if (!prev && val)
cm.addOverlay({
token: function(stream) {
for (var l = stream.string.length, i = l; i && /\s/.test(stream.string.charAt(i - 1)); --i) {}
if (i > stream.pos) { stream.pos = i; return null; }
stream.pos = l;
return "trailingspace";
},
name: "trailingspace"
});
});
});