2

页面加载时，codemirror 有没有办法突出显示与模式匹配的代码（例如，如果我使用搜索插件）？所以我可以使用 ?search=my_pattern 加载页面并将模式传递给 codemirror。

这是一个示例代码和一个 jsfiddle。您可以使用 CTRL+F 来使用搜索插件。

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
        <link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/codemirror.css" />
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/codemirror.min.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/search.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/searchcursor.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/match-highlighter.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/python.js"></script>
    </head>
    <body>
        <textarea id="myTextArea">print "hello world"</textarea>
        <script>
        var myTextArea = document.getElementById('myTextArea');
        var myCodeMirror = CodeMirror.fromTextArea(myTextArea, {
            'mode': 'python',
            'lineNumbers': true
        });
        </script>
    </body>
</html>

http://jsfiddle.net/ErxMb/

4

1 回答 1

5

我通过查看CodeMirror: Overlay Parser Demo了解了如何使用 overlay.js 来做到这一点。

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
        <link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/codemirror.css" />
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/codemirror.min.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/search.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/searchcursor.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/overlay.min.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/match-highlighter.js"></script>
        <script src="http://cdnjs.cloudflare.com/ajax/libs/codemirror/2.36.0/python.js"></script>
    </head>
    <style type="text/css">
        .cm-highlightSearch {background: yellow;}
    </style>
    <body>
        <textarea id="myTextArea">print "hello world"</textarea>
        <script>
        var keyword = 'hello';

        CodeMirror.defineMode("highlightSearch", function(config, parserConfig) {
          var searchOverlay = {
            token: function(stream, state) {
                if (stream.match(keyword)) {
                    return "highlightSearch";
                }

                while (stream.next() != null && !stream.match(keyword, false)) {}
                return null;
            }
          };
          return CodeMirror.overlayMode(CodeMirror.getMode(config, parserConfig.backdrop || "python"), searchOverlay);
        });

        var myTextArea = document.getElementById('myTextArea');
        var myCodeMirror = CodeMirror.fromTextArea(myTextArea, {
            'mode': 'highlightSearch',
            'lineNumbers': true
        });
        </script>
    </body>
</html>

http://jsfiddle.net/HkjY7/

于 2013-04-15T18:30:34.533 回答