2019-07-28 14:57:52 +02:00
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<!doctype html>
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<head>
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<title>CodeMirror: Code Folding Demo</title>
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<meta charset="utf-8"/>
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<link rel=stylesheet href="../doc/docs.css">
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<style>
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.some-css {
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color: red;
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line-height: 2;
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}
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</style>
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<link rel="stylesheet" href="../lib/codemirror.css">
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<link rel="stylesheet" href="../addon/fold/foldgutter.css" />
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<script src="../lib/codemirror.js"></script>
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<script src="../addon/fold/foldcode.js"></script>
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<script src="../addon/fold/foldgutter.js"></script>
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<script src="../addon/fold/brace-fold.js"></script>
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<script src="../addon/fold/xml-fold.js"></script>
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<script src="../addon/fold/indent-fold.js"></script>
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<script src="../addon/fold/markdown-fold.js"></script>
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<script src="../addon/fold/comment-fold.js"></script>
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<script src="../mode/javascript/javascript.js"></script>
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<script src="../mode/xml/xml.js"></script>
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<script src="../mode/css/css.js"></script>
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<script src="../mode/htmlmixed/htmlmixed.js"></script>
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<script src="../mode/python/python.js"></script>
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<script src="../mode/markdown/markdown.js"></script>
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<style>
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.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}
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</style>
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</head>
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<body>
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<div id=nav>
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<a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../doc/logo.png"></a>
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<ul>
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<li><a href="../index.html">Home</a>
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<li><a href="../doc/manual.html">Manual</a>
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<li><a href="https://github.com/codemirror/codemirror">Code</a>
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</ul>
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<ul>
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<li><a class=active href="#">Code Folding</a>
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</ul>
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</div>
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<article>
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<h2>Code Folding Demo</h2>
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<form>
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<div style="max-width: 50em; margin-bottom: 1em">JavaScript:<br>
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<textarea id="code" name="code"></textarea></div>
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<div style="max-width: 50em; margin-bottom: 1em">HTML:<br>
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2020-10-02 13:05:50 +02:00
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<textarea id="code-html" name="code-html"></textarea></div>
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<div style="max-width: 50em; margin-bottom: 1em">JSON with custom widget:<br>
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<textarea id="code-json" name="code-json">
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{
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"menu": {
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"id": "file",
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"value": "File",
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"popup": {
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"menuitem": [
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{"value": "New", "onclick": "CreateNewDoc()"},
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{"value": "Open", "onclick": "OpenDoc()"},
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{"value": "Close", "onclick": "CloseDoc()"}
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]
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}
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}
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}
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</textarea></div>
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2019-07-28 14:57:52 +02:00
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<div style="max-width: 50em">Python:<br>
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<textarea id="code-python" name="code">
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def foo():
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do_some_stuff()
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here
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return None
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class Bar:
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__init__(self):
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if True:
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print("True")
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else:
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print("False")
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this_code_makes_no_sense():
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pass
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# A comment</textarea></div>
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<div style="max-width: 50em">Markdown:<br>
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<textarea id="code-markdown" name="code"></textarea></div>
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</form>
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<script id="script">
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/*
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* Demonstration of code folding
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*/
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window.onload = function() {
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var te = document.getElementById("code");
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var sc = document.getElementById("script");
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te.value = (sc.textContent || sc.innerText || sc.innerHTML).replace(/^\s*/, "");
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sc.innerHTML = "";
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var te_html = document.getElementById("code-html");
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te_html.value = document.documentElement.innerHTML;
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var te_python = document.getElementById("code-python");
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var te_markdown = document.getElementById("code-markdown");
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te_markdown.value = "# Foo\n## Bar\n\nblah blah\n\n## Baz\n\nblah blah\n\n# Quux\n\nblah blah\n"
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2020-10-02 13:05:50 +02:00
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var te_json = document.getElementById("code-json");
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2019-07-28 14:57:52 +02:00
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window.editor = CodeMirror.fromTextArea(te, {
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mode: "javascript",
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lineNumbers: true,
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lineWrapping: true,
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extraKeys: {"Ctrl-Q": function(cm){ cm.foldCode(cm.getCursor()); }},
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foldGutter: true,
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gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"]
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});
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editor.foldCode(CodeMirror.Pos(13, 0));
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2020-10-02 13:05:50 +02:00
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window.editor_json = CodeMirror.fromTextArea(te_json, {
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mode: {name: "javascript", json: true},
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lineNumbers: true,
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lineWrapping: true,
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extraKeys: {"Ctrl-Q": function(cm){ cm.foldCode(cm.getCursor()); }},
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foldGutter: true,
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gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"],
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foldOptions: {
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widget: (from, to) => {
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var count = undefined;
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// Get open / close token
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var startToken = '{', endToken = '}';
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var prevLine = window.editor_json.getLine(from.line);
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if (prevLine.lastIndexOf('[') > prevLine.lastIndexOf('{')) {
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startToken = '[', endToken = ']';
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}
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// Get json content
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var internal = window.editor_json.getRange(from, to);
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var toParse = startToken + internal + endToken;
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// Get key count
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try {
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var parsed = JSON.parse(toParse);
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count = Object.keys(parsed).length;
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} catch(e) { }
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return count ? `\u21A4${count}\u21A6` : '\u2194';
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}
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}
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});
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editor_json.foldCode(CodeMirror.Pos(5, 0));
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2019-07-28 14:57:52 +02:00
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window.editor_html = CodeMirror.fromTextArea(te_html, {
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mode: "text/html",
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lineNumbers: true,
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lineWrapping: true,
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extraKeys: {"Ctrl-Q": function(cm){ cm.foldCode(cm.getCursor()); }},
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foldGutter: true,
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gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"]
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});
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editor_html.foldCode(CodeMirror.Pos(0, 0));
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editor_html.foldCode(CodeMirror.Pos(34, 0));
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window.editor_python = CodeMirror.fromTextArea(te_python, {
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mode: "python",
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lineNumbers: true,
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extraKeys: {"Ctrl-Q": function(cm){ cm.foldCode(cm.getCursor()); }},
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foldGutter: true,
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gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"]
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});
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window.editor_markdown = CodeMirror.fromTextArea(te_markdown, {
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mode: "markdown",
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lineNumbers: true,
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lineWrapping: true,
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extraKeys: {"Ctrl-Q": function(cm){ cm.foldCode(cm.getCursor()); }},
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foldGutter: true,
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gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"]
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});
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};
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</script>
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</article>
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</body>
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