Method parse

src/parsetree/commands/basic.js:431–499

(parser)

    }

    static parse(parser) {
        if (!parser.matchToken("pick")) return;

        parser.matchToken("the");

        if (parser.matchToken("first")) {
            var follows = parser.pushFollows("of", "from");
            try { var count = parser.requireElement("expression"); }
            finally { parser.popFollows(follows); }
            var root = PickCommand.parseSource(parser);
            return new PickCommand("first", root, null, null, null, count);
        }

        if (parser.matchToken("last")) {
            var follows = parser.pushFollows("of", "from");
            try { var count = parser.requireElement("expression"); }
            finally { parser.popFollows(follows); }
            var root = PickCommand.parseSource(parser);
            return new PickCommand("last", root, null, null, null, count);
        }

        if (parser.matchToken("random")) {
            var count = null;
            if (parser.currentToken().type === "NUMBER") {
                var follows = parser.pushFollows("of", "from");
                try { count = parser.requireElement("expression"); }
                finally { parser.popFollows(follows); }
            }
            var root = PickCommand.parseSource(parser);
            return new PickCommand("random", root, null, null, null, count);
        }

        if (parser.matchToken("item") || parser.matchToken("items")
         || parser.matchToken("character") || parser.matchToken("characters")) {
            var follows = parser.pushFollows("of", "from");
            try { var range = PickCommand.parsePickRange(parser); }
            finally { parser.popFollows(follows); }
            var root = PickCommand.parseSource(parser);
            return new PickCommand("range", root, range, null, null);
        }

        if (parser.matchToken("match")) {
            parser.matchToken("of");
            var follows = parser.pushFollows("of", "from");
            try {
                var re = parser.parseElement("expression");
                var flags = "";
                if (parser.matchOpToken("|")) {
                    flags = parser.requireTokenType("IDENTIFIER").value;
                }
            } finally { parser.popFollows(follows); }
            var root = PickCommand.parseSource(parser);
            return new PickCommand("match", root, null, re, flags);
        }

        if (parser.matchToken("matches")) {
            parser.matchToken("of");
            var follows = parser.pushFollows("of", "from");