38 lines
770 B
JavaScript
38 lines
770 B
JavaScript
/*
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Language: Extended Backus-Naur Form
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Author: Alex McKibben <alex@nullscope.net>
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*/
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function(hljs) {
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var commentMode = hljs.COMMENT(/\(\*/, /\*\)/);
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var nonTerminalMode = {
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className: "attribute",
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begin: /^[ ]*[a-zA-Z][a-zA-Z-]*([\s-]+[a-zA-Z][a-zA-Z]*)*/
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};
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var specialSequenceMode = {
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className: "meta",
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begin: /\?.*\?/
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};
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var ruleBodyMode = {
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begin: /=/, end: /;/,
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contains: [
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commentMode,
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specialSequenceMode,
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// terminals
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hljs.APOS_STRING_MODE, hljs.QUOTE_STRING_MODE
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]
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};
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return {
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illegal: /\S/,
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contains: [
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commentMode,
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nonTerminalMode,
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ruleBodyMode
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]
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};
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}
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