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47 lines
1.6 KiB
JavaScript
47 lines
1.6 KiB
JavaScript
/**
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* Handle github codeblocks prior to running HashHTML so that
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* HTML contained within the codeblock gets escaped properly
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* Example:
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* ```ruby
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* def hello_world(x)
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* puts "Hello, #{x}"
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* end
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* ```
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*/
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showdown.subParser('githubCodeBlocks', function (text, options, globals) {
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'use strict';
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// early exit if option is not enabled
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if (!options.ghCodeBlocks) {
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return text;
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}
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text = globals.converter._dispatch('githubCodeBlocks.before', text, options, globals);
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text += '~0';
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text = text.replace(/(?:^|\n)```(.*)\n([\s\S]*?)\n```/g, function (wholeMatch, language, codeblock) {
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var end = (options.omitExtraWLInCodeBlocks) ? '' : '\n';
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// First parse the github code block
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codeblock = showdown.subParser('encodeCode')(codeblock);
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codeblock = showdown.subParser('detab')(codeblock);
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codeblock = codeblock.replace(/^\n+/g, ''); // trim leading newlines
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codeblock = codeblock.replace(/\n+$/g, ''); // trim trailing whitespace
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codeblock = '<pre><code' + (language ? ' class="' + language + ' language-' + language + '"' : '') + '>' + codeblock + end + '</code></pre>';
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codeblock = showdown.subParser('hashBlock')(codeblock, options, globals);
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// Since GHCodeblocks can be false positives, we need to
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// store the primitive text and the parsed text in a global var,
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// and then return a token
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return '\n\n~G' + (globals.ghCodeBlocks.push({text: wholeMatch, codeblock: codeblock}) - 1) + 'G\n\n';
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});
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// attacklab: strip sentinel
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text = text.replace(/~0/, '');
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return globals.converter._dispatch('githubCodeBlocks.after', text, options, globals);
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});
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