integrate CodeMirror's MergeView to the 'My rules' pane
Raymond Hill
6 years ago
parent
747748c9ba
commit
d825b5562e
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.codeMirrorContainer {
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font-size: 12px;
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line-height: 1.25;
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overflow: hidden;
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position: relative;
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}
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.CodeMirror {
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border: 1px solid #ddd;
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box-sizing: border-box;
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flex-grow: 1;
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height: 100%;
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width: 100%;
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}
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/* For when panels are used */
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.codeMirrorContainer > div:not([class^="CodeMirror"]) {
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display: flex;
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flex-direction: column;
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height: 100%;
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}
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.CodeMirror-merge-l-deleted {
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background-image: none;
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font-weight: bold;
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}
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.CodeMirror-merge-l-inserted {
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background-image: none;
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font-weight: bold;
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}
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@ -0,0 +1,21 @@
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MIT License
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Copyright (C) 2017 by Marijn Haverbeke <marijnh@gmail.com> and others
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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@ -0,0 +1,35 @@
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# CodeMirror
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[](https://travis-ci.org/codemirror/CodeMirror)
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[](https://www.npmjs.org/package/codemirror)
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[](https://gitter.im/codemirror/CodeMirror)
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[Funding status: ](https://marijnhaverbeke.nl/fund/)
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CodeMirror is a versatile text editor implemented in JavaScript for
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the browser. It is specialized for editing code, and comes with over
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100 language modes and various addons that implement more advanced
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editing functionality. Every language comes with fully-featured code
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and syntax highlighting to help with reading and editing complex code.
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A rich programming API and a CSS theming system are available for
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customizing CodeMirror to fit your application, and extending it with
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new functionality.
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You can find more information (and the
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[manual](http://codemirror.net/doc/manual.html)) on the [project
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page](http://codemirror.net). For questions and discussion, use the
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[discussion forum](https://discuss.codemirror.net/).
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See
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[CONTRIBUTING.md](https://github.com/codemirror/CodeMirror/blob/master/CONTRIBUTING.md)
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for contributing guidelines.
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The CodeMirror community aims to be welcoming to everybody. We use the
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[Contributor Covenant
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(1.1)](http://contributor-covenant.org/version/1/1/0/) as our code of
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conduct.
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### Quickstart
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To build the project, make sure you have Node.js installed (at least version 6)
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and then `npm install`. To run, just open `index.html` in your
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browser (you don't need to run a webserver). Run the tests with `npm test`.
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.CodeMirror-merge {
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position: relative;
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border: 1px solid #ddd;
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white-space: pre;
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}
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.CodeMirror-merge, .CodeMirror-merge .CodeMirror {
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height: 350px;
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}
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.CodeMirror-merge-2pane .CodeMirror-merge-pane { width: 47%; }
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.CodeMirror-merge-2pane .CodeMirror-merge-gap { width: 6%; }
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.CodeMirror-merge-3pane .CodeMirror-merge-pane { width: 31%; }
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.CodeMirror-merge-3pane .CodeMirror-merge-gap { width: 3.5%; }
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.CodeMirror-merge-pane {
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display: inline-block;
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white-space: normal;
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vertical-align: top;
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}
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.CodeMirror-merge-pane-rightmost {
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position: absolute;
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right: 0px;
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z-index: 1;
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}
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.CodeMirror-merge-gap {
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z-index: 2;
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display: inline-block;
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height: 100%;
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-moz-box-sizing: border-box;
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box-sizing: border-box;
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overflow: hidden;
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border-left: 1px solid #ddd;
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border-right: 1px solid #ddd;
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position: relative;
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background: #f8f8f8;
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}
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.CodeMirror-merge-scrolllock-wrap {
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position: absolute;
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bottom: 0; left: 50%;
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}
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.CodeMirror-merge-scrolllock {
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position: relative;
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left: -50%;
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cursor: pointer;
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color: #555;
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line-height: 1;
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}
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.CodeMirror-merge-scrolllock:after {
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content: "\21db\00a0\00a0\21da";
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}
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.CodeMirror-merge-scrolllock.CodeMirror-merge-scrolllock-enabled:after {
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content: "\21db\21da";
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}
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.CodeMirror-merge-copybuttons-left, .CodeMirror-merge-copybuttons-right {
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position: absolute;
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left: 0; top: 0;
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right: 0; bottom: 0;
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line-height: 1;
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}
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.CodeMirror-merge-copy {
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position: absolute;
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cursor: pointer;
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color: #44c;
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z-index: 3;
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}
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.CodeMirror-merge-copy-reverse {
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position: absolute;
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cursor: pointer;
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color: #44c;
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}
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.CodeMirror-merge-copybuttons-left .CodeMirror-merge-copy { left: 2px; }
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.CodeMirror-merge-copybuttons-right .CodeMirror-merge-copy { right: 2px; }
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.CodeMirror-merge-r-inserted, .CodeMirror-merge-l-inserted {
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background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAACCAYAAACddGYaAAAAGUlEQVQI12MwuCXy3+CWyH8GBgYGJgYkAABZbAQ9ELXurwAAAABJRU5ErkJggg==);
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background-position: bottom left;
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background-repeat: repeat-x;
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}
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.CodeMirror-merge-r-deleted, .CodeMirror-merge-l-deleted {
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background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAACCAYAAACddGYaAAAAGUlEQVQI12M4Kyb2/6yY2H8GBgYGJgYkAABURgPz6Ks7wQAAAABJRU5ErkJggg==);
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background-position: bottom left;
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background-repeat: repeat-x;
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}
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.CodeMirror-merge-r-chunk { background: #ffffe0; }
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.CodeMirror-merge-r-chunk-start { border-top: 1px solid #ee8; }
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.CodeMirror-merge-r-chunk-end { border-bottom: 1px solid #ee8; }
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.CodeMirror-merge-r-connect { fill: #ffffe0; stroke: #ee8; stroke-width: 1px; }
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.CodeMirror-merge-l-chunk { background: #eef; }
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.CodeMirror-merge-l-chunk-start { border-top: 1px solid #88e; }
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.CodeMirror-merge-l-chunk-end { border-bottom: 1px solid #88e; }
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.CodeMirror-merge-l-connect { fill: #eef; stroke: #88e; stroke-width: 1px; }
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.CodeMirror-merge-l-chunk.CodeMirror-merge-r-chunk { background: #dfd; }
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.CodeMirror-merge-l-chunk-start.CodeMirror-merge-r-chunk-start { border-top: 1px solid #4e4; }
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.CodeMirror-merge-l-chunk-end.CodeMirror-merge-r-chunk-end { border-bottom: 1px solid #4e4; }
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.CodeMirror-merge-collapsed-widget:before {
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content: "(...)";
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}
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.CodeMirror-merge-collapsed-widget {
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cursor: pointer;
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color: #88b;
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background: #eef;
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border: 1px solid #ddf;
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font-size: 90%;
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padding: 0 3px;
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border-radius: 4px;
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}
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.CodeMirror-merge-collapsed-line .CodeMirror-gutter-elt { display: none; }
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File diff suppressed because it is too large
Load Diff
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// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: http://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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"use strict";
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var WRAP_CLASS = "CodeMirror-activeline";
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var BACK_CLASS = "CodeMirror-activeline-background";
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var GUTT_CLASS = "CodeMirror-activeline-gutter";
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CodeMirror.defineOption("styleActiveLine", false, function(cm, val, old) {
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var prev = old == CodeMirror.Init ? false : old;
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if (val == prev) return
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if (prev) {
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cm.off("beforeSelectionChange", selectionChange);
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clearActiveLines(cm);
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delete cm.state.activeLines;
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}
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if (val) {
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cm.state.activeLines = [];
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updateActiveLines(cm, cm.listSelections());
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cm.on("beforeSelectionChange", selectionChange);
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}
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});
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function clearActiveLines(cm) {
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for (var i = 0; i < cm.state.activeLines.length; i++) {
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cm.removeLineClass(cm.state.activeLines[i], "wrap", WRAP_CLASS);
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cm.removeLineClass(cm.state.activeLines[i], "background", BACK_CLASS);
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cm.removeLineClass(cm.state.activeLines[i], "gutter", GUTT_CLASS);
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}
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}
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function sameArray(a, b) {
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if (a.length != b.length) return false;
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for (var i = 0; i < a.length; i++)
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if (a[i] != b[i]) return false;
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return true;
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}
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function updateActiveLines(cm, ranges) {
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var active = [];
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for (var i = 0; i < ranges.length; i++) {
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var range = ranges[i];
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var option = cm.getOption("styleActiveLine");
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if (typeof option == "object" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty())
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continue
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var line = cm.getLineHandleVisualStart(range.head.line);
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if (active[active.length - 1] != line) active.push(line);
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}
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if (sameArray(cm.state.activeLines, active)) return;
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cm.operation(function() {
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clearActiveLines(cm);
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for (var i = 0; i < active.length; i++) {
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cm.addLineClass(active[i], "wrap", WRAP_CLASS);
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cm.addLineClass(active[i], "background", BACK_CLASS);
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cm.addLineClass(active[i], "gutter", GUTT_CLASS);
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}
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cm.state.activeLines = active;
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});
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}
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function selectionChange(cm, sel) {
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updateActiveLines(cm, sel.ranges);
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}
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});
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@ -0,0 +1,346 @@
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/* BASICS */
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.CodeMirror {
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/* Set height, width, borders, and global font properties here */
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font-family: monospace;
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height: 300px;
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color: black;
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direction: ltr;
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}
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/* PADDING */
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.CodeMirror-lines {
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padding: 4px 0; /* Vertical padding around content */
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}
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.CodeMirror pre {
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padding: 0 4px; /* Horizontal padding of content */
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}
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.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
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background-color: white; /* The little square between H and V scrollbars */
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}
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/* GUTTER */
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.CodeMirror-gutters {
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border-right: 1px solid #ddd;
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background-color: #f7f7f7;
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white-space: nowrap;
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}
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.CodeMirror-linenumbers {}
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.CodeMirror-linenumber {
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padding: 0 3px 0 5px;
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min-width: 20px;
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text-align: right;
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color: #999;
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white-space: nowrap;
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}
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.CodeMirror-guttermarker { color: black; }
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.CodeMirror-guttermarker-subtle { color: #999; }
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/* CURSOR */
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.CodeMirror-cursor {
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border-left: 1px solid black;
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border-right: none;
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width: 0;
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}
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/* Shown when moving in bi-directional text */
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.CodeMirror div.CodeMirror-secondarycursor {
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border-left: 1px solid silver;
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}
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.cm-fat-cursor .CodeMirror-cursor {
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width: auto;
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border: 0 !important;
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background: #7e7;
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}
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.cm-fat-cursor div.CodeMirror-cursors {
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z-index: 1;
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}
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.cm-fat-cursor-mark {
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background-color: rgba(20, 255, 20, 0.5);
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-webkit-animation: blink 1.06s steps(1) infinite;
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-moz-animation: blink 1.06s steps(1) infinite;
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animation: blink 1.06s steps(1) infinite;
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}
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.cm-animate-fat-cursor {
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width: auto;
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border: 0;
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-webkit-animation: blink 1.06s steps(1) infinite;
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-moz-animation: blink 1.06s steps(1) infinite;
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animation: blink 1.06s steps(1) infinite;
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background-color: #7e7;
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}
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@-moz-keyframes blink {
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0% {}
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50% { background-color: transparent; }
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100% {}
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}
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@-webkit-keyframes blink {
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0% {}
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50% { background-color: transparent; }
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100% {}
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}
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@keyframes blink {
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0% {}
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50% { background-color: transparent; }
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100% {}
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}
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/* Can style cursor different in overwrite (non-insert) mode */
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.CodeMirror-overwrite .CodeMirror-cursor {}
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.cm-tab { display: inline-block; text-decoration: inherit; }
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.CodeMirror-rulers {
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position: absolute;
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left: 0; right: 0; top: -50px; bottom: -20px;
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overflow: hidden;
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}
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.CodeMirror-ruler {
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border-left: 1px solid #ccc;
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top: 0; bottom: 0;
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position: absolute;
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}
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/* DEFAULT THEME */
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.cm-s-default .cm-header {color: blue;}
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.cm-s-default .cm-quote {color: #090;}
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.cm-negative {color: #d44;}
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.cm-positive {color: #292;}
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.cm-header, .cm-strong {font-weight: bold;}
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.cm-em {font-style: italic;}
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.cm-link {text-decoration: underline;}
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.cm-strikethrough {text-decoration: line-through;}
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.cm-s-default .cm-keyword {color: #708;}
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.cm-s-default .cm-atom {color: #219;}
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.cm-s-default .cm-number {color: #164;}
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.cm-s-default .cm-def {color: #00f;}
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.cm-s-default .cm-variable,
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.cm-s-default .cm-punctuation,
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.cm-s-default .cm-property,
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.cm-s-default .cm-operator {}
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.cm-s-default .cm-variable-2 {color: #05a;}
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.cm-s-default .cm-variable-3, .cm-s-default .cm-type {color: #085;}
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.cm-s-default .cm-comment {color: #a50;}
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.cm-s-default .cm-string {color: #a11;}
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.cm-s-default .cm-string-2 {color: #f50;}
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.cm-s-default .cm-meta {color: #555;}
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.cm-s-default .cm-qualifier {color: #555;}
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.cm-s-default .cm-builtin {color: #30a;}
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.cm-s-default .cm-bracket {color: #997;}
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.cm-s-default .cm-tag {color: #170;}
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.cm-s-default .cm-attribute {color: #00c;}
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.cm-s-default .cm-hr {color: #999;}
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.cm-s-default .cm-link {color: #00c;}
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.cm-s-default .cm-error {color: #f00;}
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.cm-invalidchar {color: #f00;}
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.CodeMirror-composing { border-bottom: 2px solid; }
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/* Default styles for common addons */
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div.CodeMirror span.CodeMirror-matchingbracket {color: #0b0;}
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div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #a22;}
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.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
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.CodeMirror-activeline-background {background: #e8f2ff;}
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/* STOP */
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/* The rest of this file contains styles related to the mechanics of
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the editor. You probably shouldn't touch them. */
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.CodeMirror {
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position: relative;
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overflow: hidden;
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background: white;
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}
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.CodeMirror-scroll {
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overflow: scroll !important; /* Things will break if this is overridden */
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/* 30px is the magic margin used to hide the element's real scrollbars */
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/* See overflow: hidden in .CodeMirror */
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margin-bottom: -30px; margin-right: -30px;
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padding-bottom: 30px;
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height: 100%;
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outline: none; /* Prevent dragging from highlighting the element */
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position: relative;
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}
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.CodeMirror-sizer {
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position: relative;
|
||||
border-right: 30px solid transparent;
|
||||
}
|
||||
|
||||
/* The fake, visible scrollbars. Used to force redraw during scrolling
|
||||
before actual scrolling happens, thus preventing shaking and
|
||||
flickering artifacts. */
|
||||
.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
|
||||
position: absolute;
|
||||
z-index: 6;
|
||||
display: none;
|
||||
}
|
||||
.CodeMirror-vscrollbar {
|
||||
right: 0; top: 0;
|
||||
overflow-x: hidden;
|
||||
overflow-y: scroll;
|
||||
}
|
||||
.CodeMirror-hscrollbar {
|
||||
bottom: 0; left: 0;
|
||||
overflow-y: hidden;
|
||||
overflow-x: scroll;
|
||||
}
|
||||
.CodeMirror-scrollbar-filler {
|
||||
right: 0; bottom: 0;
|
||||
}
|
||||
.CodeMirror-gutter-filler {
|
||||
left: 0; bottom: 0;
|
||||
}
|
||||
|
||||
.CodeMirror-gutters {
|
||||
position: absolute; left: 0; top: 0;
|
||||
min-height: 100%;
|
||||
z-index: 3;
|
||||
}
|
||||
.CodeMirror-gutter {
|
||||
white-space: normal;
|
||||
height: 100%;
|
||||
display: inline-block;
|
||||
vertical-align: top;
|
||||
margin-bottom: -30px;
|
||||
}
|
||||
.CodeMirror-gutter-wrapper {
|
||||
position: absolute;
|
||||
z-index: 4;
|
||||
background: none !important;
|
||||
border: none !important;
|
||||
}
|
||||
.CodeMirror-gutter-background {
|
||||
position: absolute;
|
||||
top: 0; bottom: 0;
|
||||
z-index: 4;
|
||||
}
|
||||
.CodeMirror-gutter-elt {
|
||||
position: absolute;
|
||||
cursor: default;
|
||||
z-index: 4;
|
||||
}
|
||||
.CodeMirror-gutter-wrapper ::selection { background-color: transparent }
|
||||
.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent }
|
||||
|
||||
.CodeMirror-lines {
|
||||
cursor: text;
|
||||
min-height: 1px; /* prevents collapsing before first draw */
|
||||
}
|
||||
.CodeMirror pre {
|
||||
/* Reset some styles that the rest of the page might have set */
|
||||
-moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
|
||||
border-width: 0;
|
||||
background: transparent;
|
||||
font-family: inherit;
|
||||
font-size: inherit;
|
||||
margin: 0;
|
||||
white-space: pre;
|
||||
word-wrap: normal;
|
||||
line-height: inherit;
|
||||
color: inherit;
|
||||
z-index: 2;
|
||||
position: relative;
|
||||
overflow: visible;
|
||||
-webkit-tap-highlight-color: transparent;
|
||||
-webkit-font-variant-ligatures: contextual;
|
||||
font-variant-ligatures: contextual;
|
||||
}
|
||||
.CodeMirror-wrap pre {
|
||||
word-wrap: break-word;
|
||||
white-space: pre-wrap;
|
||||
word-break: normal;
|
||||
}
|
||||
|
||||
.CodeMirror-linebackground {
|
||||
position: absolute;
|
||||
left: 0; right: 0; top: 0; bottom: 0;
|
||||
z-index: 0;
|
||||
}
|
||||
|
||||
.CodeMirror-linewidget {
|
||||
position: relative;
|
||||
z-index: 2;
|
||||
padding: 0.1px; /* Force widget margins to stay inside of the container */
|
||||
}
|
||||
|
||||
.CodeMirror-widget {}
|
||||
|
||||
.CodeMirror-rtl pre { direction: rtl; }
|
||||
|
||||
.CodeMirror-code {
|
||||
outline: none;
|
||||
}
|
||||
|
||||
/* Force content-box sizing for the elements where we expect it */
|
||||
.CodeMirror-scroll,
|
||||
.CodeMirror-sizer,
|
||||
.CodeMirror-gutter,
|
||||
.CodeMirror-gutters,
|
||||
.CodeMirror-linenumber {
|
||||
-moz-box-sizing: content-box;
|
||||
box-sizing: content-box;
|
||||
}
|
||||
|
||||
.CodeMirror-measure {
|
||||
position: absolute;
|
||||
width: 100%;
|
||||
height: 0;
|
||||
overflow: hidden;
|
||||
visibility: hidden;
|
||||
}
|
||||
|
||||
.CodeMirror-cursor {
|
||||
position: absolute;
|
||||
pointer-events: none;
|
||||
}
|
||||
.CodeMirror-measure pre { position: static; }
|
||||
|
||||
div.CodeMirror-cursors {
|
||||
visibility: hidden;
|
||||
position: relative;
|
||||
z-index: 3;
|
||||
}
|
||||
div.CodeMirror-dragcursors {
|
||||
visibility: visible;
|
||||
}
|
||||
|
||||
.CodeMirror-focused div.CodeMirror-cursors {
|
||||
visibility: visible;
|
||||
}
|
||||
|
||||
.CodeMirror-selected { background: #d9d9d9; }
|
||||
.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
|
||||
.CodeMirror-crosshair { cursor: crosshair; }
|
||||
.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
|
||||
.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
|
||||
|
||||
.cm-searching {
|
||||
background-color: #ffa;
|
||||
background-color: rgba(255, 255, 0, .4);
|
||||
}
|
||||
|
||||
/* Used to force a border model for a node */
|
||||
.cm-force-border { padding-right: .1px; }
|
||||
|
||||
@media print {
|
||||
/* Hide the cursor when printing */
|
||||
.CodeMirror div.CodeMirror-cursors {
|
||||
visibility: hidden;
|
||||
}
|
||||
}
|
||||
|
||||
/* See issue #2901 */
|
||||
.cm-tab-wrap-hack:after { content: ''; }
|
||||
|
||||
/* Help users use markselection to safely style text background */
|
||||
span.CodeMirror-selectedtext { background: none; }
|
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,34 @@
|
||||
# diff
|
||||
|
||||
implementation of myers diff algorithm
|
||||
|
||||
[](https://travis-ci.org/Swatinem/diff)
|
||||
[](https://coveralls.io/r/Swatinem/diff)
|
||||
[](https://gemnasium.com/Swatinem/diff)
|
||||
|
||||
|
||||
This uses the [*An O(ND) Difference Algorithm and Its Variations*](http://www.xmailserver.org/diff2.pdf)
|
||||
Also see http://simplygenius.net/Article/DiffTutorial2 and
|
||||
http://www.mathertel.de/Diff/ViewSrc.aspx for more inspiration
|
||||
|
||||
## Installation
|
||||
|
||||
$ npm install diff
|
||||
$ component install Swatinem/diff
|
||||
|
||||
## Usage
|
||||
|
||||
### diff(a, b, [eql(a, b)])
|
||||
|
||||
Given two arrays (or array-likes, such as strings) `a` and `b` and an optional
|
||||
equal function `eql`, this will return an array with the following operations:
|
||||
* *nop* the element is in both arrays
|
||||
* *ins* the element is only in array `b` and will be inserted
|
||||
* *del* the element in only in array `a` and will be removed
|
||||
* *rep* the element from `a` will be replaced by the element from `b`.
|
||||
This is essentially the same as a del+ins
|
||||
|
||||
## License
|
||||
|
||||
LGPLv3
|
||||
|
||||
@ -0,0 +1,207 @@
|
||||
/*******************************************************************************
|
||||
|
||||
Key portions of code below was borrowed from:
|
||||
https://github.com/Swatinem/diff
|
||||
|
||||
License is LGPL3 (thanks!) as per:
|
||||
https://github.com/Swatinem/diff/blob/b58391504759/README.md
|
||||
|
||||
I chose to pick this implementation over
|
||||
https://github.com/google/diff-match-patch as suggested by CodeMirror
|
||||
because:
|
||||
|
||||
- Code is clean and simple to read -- useful when unfamiliar with the diff
|
||||
algorithm, this makes changing the code easier if/when needed.
|
||||
|
||||
- Smaller -- diff_match_patch comes with an extended API most of which is
|
||||
of no use to the current project.
|
||||
- diff_match_patch uncompressed: 74.7 KB
|
||||
- Swatinem's diff uncompressed: 3.66 KB
|
||||
|
||||
- I can easily adapt Swatinem's diff to deal with arrays of strings, which
|
||||
is best suited for the current project -- it natively work with arrays.
|
||||
|
||||
I removed portions of code which are of no use for the current project.
|
||||
|
||||
I modified the diff script generator (Diff.prototype.editscript) since I
|
||||
need to generate a script which is compatible with the output of the
|
||||
diff_match_patch, as expected by CodeMirror.
|
||||
|
||||
**/
|
||||
|
||||
'use strict';
|
||||
|
||||
(function(context) {
|
||||
|
||||
// CodeMirror expect these globals:
|
||||
context.DIFF_INSERT = 1;
|
||||
context.DIFF_DELETE = -1;
|
||||
context.DIFF_EQUAL = 0;
|
||||
context.diff_match_patch = function(){};
|
||||
|
||||
context.diff_match_patch.prototype.diff_main = function(a, b) {
|
||||
if ( a === b ) { return [ [ 0, a ] ]; }
|
||||
var aa = a.match(/\n|[^\n]+\n?/g) || [];
|
||||
var bb = b.match(/\n|[^\n]+\n?/g) || [];
|
||||
var d = new Diff(aa, bb, eqlDefault);
|
||||
return d.editscript();
|
||||
};
|
||||
|
||||
function eqlDefault(a, b) { return a === b; }
|
||||
|
||||
function Diff(a, b, eql) {
|
||||
this.a = a;
|
||||
this.b = b;
|
||||
this.eql = eql;
|
||||
|
||||
this.moda = Array.apply(null, new Array(a.length)).map(true.valueOf, false);
|
||||
this.modb = Array.apply(null, new Array(b.length)).map(true.valueOf, false);
|
||||
|
||||
// just to save some allocations:
|
||||
this.down = {};
|
||||
this.up = {};
|
||||
|
||||
this.lcs(0, a.length, 0, b.length);
|
||||
}
|
||||
|
||||
Diff.prototype.editscript = function Diff_editscript() {
|
||||
var moda = this.moda, modb = this.modb;
|
||||
var astart = 0, aend = moda.length;
|
||||
var bstart = 0, bend = modb.length;
|
||||
var result = [];
|
||||
while (astart < aend || bstart < bend) {
|
||||
if (astart < aend && bstart < bend) {
|
||||
if (!moda[astart] && !modb[bstart]) {
|
||||
result.push([ 0, this.a[astart] ]);
|
||||
astart++; bstart++;
|
||||
continue;
|
||||
} else if (moda[astart] && modb[bstart]) {
|
||||
result.push([ -1, this.a[astart] ]);
|
||||
result.push([ 1, this.b[bstart] ]);
|
||||
astart++; bstart++;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
if (astart < aend && (bstart >= bend || moda[astart])) {
|
||||
result.push([ -1, this.a[astart] ]);
|
||||
astart++;
|
||||
}
|
||||
if (bstart < bend && (astart >= aend || modb[bstart])) {
|
||||
result.push([ 1, this.b[bstart] ]);
|
||||
bstart++;
|
||||
}
|
||||
}
|
||||
return result;
|
||||
};
|
||||
|
||||
Diff.prototype.lcs = function Diff_lcs(astart, aend, bstart, bend) {
|
||||
var a = this.a, b = this.b, eql = this.eql;
|
||||
// separate common head
|
||||
while (astart < aend && bstart < bend && eql(a[astart], b[bstart])) {
|
||||
astart++; bstart++;
|
||||
}
|
||||
// separate common tail
|
||||
while (astart < aend && bstart < bend && eql(a[aend - 1], b[bend - 1])) {
|
||||
aend--; bend--;
|
||||
}
|
||||
|
||||
if (astart === aend) {
|
||||
// only insertions
|
||||
while (bstart < bend) {
|
||||
this.modb[bstart] = true;
|
||||
bstart++;
|
||||
}
|
||||
} else if (bend === bstart) {
|
||||
// only deletions
|
||||
while (astart < aend) {
|
||||
this.moda[astart] = true;
|
||||
astart++;
|
||||
}
|
||||
} else {
|
||||
var snake = this.snake(astart, aend, bstart, bend);
|
||||
|
||||
this.lcs(astart, snake.x, bstart, snake.y);
|
||||
this.lcs(snake.u, aend, snake.v, bend);
|
||||
}
|
||||
};
|
||||
|
||||
Diff.prototype.snake = function Diff_snake(astart, aend, bstart, bend) {
|
||||
var a = this.a, b = this.b, eql = this.eql;
|
||||
|
||||
var N = aend - astart,
|
||||
M = bend - bstart;
|
||||
|
||||
var kdown = astart - bstart;
|
||||
var kup = aend - bend;
|
||||
|
||||
var delta = N - M;
|
||||
var deltaOdd = delta & 1;
|
||||
|
||||
var down = this.down;
|
||||
down[kdown + 1] = astart;
|
||||
var up = this.up;
|
||||
up[kup - 1] = aend;
|
||||
|
||||
var Dmax = (N + M + 1) / 2;
|
||||
for (var D = 0; D <= Dmax; D++) {
|
||||
var k, x, y;
|
||||
// forward path
|
||||
for (k = kdown - D; k <= kdown + D; k += 2) {
|
||||
if (k === kdown - D) {
|
||||
x = down[k + 1]; // down
|
||||
} else {
|
||||
x = down[k - 1] + 1; // right
|
||||
if ((k < kdown + D) && (down[k + 1] >= x)) {
|
||||
x = down[k + 1]; // down
|
||||
}
|
||||
}
|
||||
y = x - k;
|
||||
|
||||
while (x < aend && y < bend && eql(a[x], b[y])) {
|
||||
x++; y++; // diagonal
|
||||
}
|
||||
down[k] = x;
|
||||
|
||||
if (deltaOdd && (kup - D < k) && (k < kup + D) &&
|
||||
up[k] <= down[k]) {
|
||||
return {
|
||||
x: down[k],
|
||||
y: down[k] - k,
|
||||
u: up[k],
|
||||
v: up[k] - k,
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
// reverse path
|
||||
for (k = kup - D; k <= kup + D; k += 2) {
|
||||
if (k === kup + D) {
|
||||
x = up[k - 1]; // up
|
||||
} else {
|
||||
x = up[k + 1] - 1; // left
|
||||
if ((k > kup - D) && (up[k - 1] < x)) {
|
||||
x = up[k - 1]; // up
|
||||
}
|
||||
}
|
||||
y = x - k;
|
||||
|
||||
while (x > astart && y > bstart && eql(a[x - 1], b[y - 1])) {
|
||||
x--; y--; // diagonal
|
||||
}
|
||||
up[k] = x;
|
||||
|
||||
if (!deltaOdd && (kdown - D <= k) && (k <= kdown + D) &&
|
||||
up[k] <= down[k]) {
|
||||
return {
|
||||
x: down[k],
|
||||
y: down[k] - k,
|
||||
u: up[k],
|
||||
v: up[k] - k,
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
return Diff;
|
||||
})(self);
|
||||
Loading…
Reference in New Issue