INNER CODE UNIT · JavaScript

diagram

kach/nearley · bin/nearley-railroad.js:51

    function diagram(name) {
        var selectedrules = rules[name];
        var outer = {subexpression: selectedrules};

        function renderTok(tok) {
            // ctx translated to correct position already
            if (tok.subexpression) {
                return new rr.Choice(0, tok.subexpression.map(renderTok));
            } else if (tok.ebnf) {
                switch (tok.modifier) {
                case ":+":
                    return new rr.OneOrMore(renderTok(tok.ebnf));
                    break;
                case ":*":
                    return new rr.ZeroOrMore(renderTok(tok.ebnf));
                    break;
                case ":?":
                    return new rr.Optional(renderTok(tok.ebnf));

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