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peg-0.8.0.js
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/*
* PEG.js 0.8.0
*
* http://pegjs.majda.cz/
*
* Copyright (c) 2010-2013 David Majda
* Licensed under the MIT license.
*/
var PEG = (function(undefined) {
var modules = {
define: function(name, factory) {
var dir = name.replace(/(^|\/)[^/]+$/, "$1"),
module = { exports: {} };
function require(path) {
var name = dir + path,
regexp = /[^\/]+\/\.\.\/|\.\//;
/* Can't use /.../g because we can move backwards in the string. */
while (regexp.test(name)) {
name = name.replace(regexp, "");
}
return modules[name];
}
factory(module, require);
this[name] = module.exports;
}
};
modules.define("utils", function(module, require) {
var utils = {
/* Like Python's |range|, but without |step|. */
range: function(start, stop) {
if (stop === undefined) {
stop = start;
start = 0;
}
var result = new Array(Math.max(0, stop - start));
for (var i = 0, j = start; j < stop; i++, j++) {
result[i] = j;
}
return result;
},
find: function(array, callback) {
var length = array.length;
for (var i = 0; i < length; i++) {
if (callback(array[i])) {
return array[i];
}
}
},
indexOf: function(array, callback) {
var length = array.length;
for (var i = 0; i < length; i++) {
if (callback(array[i])) {
return i;
}
}
return -1;
},
contains: function(array, value) {
/*
* Stupid IE does not have Array.prototype.indexOf, otherwise this function
* would be a one-liner.
*/
var length = array.length;
for (var i = 0; i < length; i++) {
if (array[i] === value) {
return true;
}
}
return false;
},
each: function(array, callback) {
var length = array.length;
for (var i = 0; i < length; i++) {
callback(array[i], i);
}
},
map: function(array, callback) {
var result = [];
var length = array.length;
for (var i = 0; i < length; i++) {
result[i] = callback(array[i], i);
}
return result;
},
pluck: function(array, key) {
return utils.map(array, function (e) { return e[key]; });
},
keys: function(object) {
var result = [];
for (var key in object) {
if (object.hasOwnProperty(key)) {
result.push(key);
}
}
return result;
},
values: function(object) {
var result = [];
for (var key in object) {
if (object.hasOwnProperty(key)) {
result.push(object[key]);
}
}
return result;
},
clone: function(object) {
var result = {};
for (var key in object) {
if (object.hasOwnProperty(key)) {
result[key] = object[key];
}
}
return result;
},
defaults: function(object, defaults) {
for (var key in defaults) {
if (defaults.hasOwnProperty(key)) {
if (!(key in object)) {
object[key] = defaults[key];
}
}
}
},
/*
* The code needs to be in sync with the code template in the compilation
* function for "action" nodes.
*/
subclass: function(child, parent) {
function ctor() { this.constructor = child; }
ctor.prototype = parent.prototype;
child.prototype = new ctor();
},
/*
* Returns a string padded on the left to a desired length with a character.
*
* The code needs to be in sync with the code template in the compilation
* function for "action" nodes.
*/
padLeft: function(input, padding, length) {
var result = input;
var padLength = length - input.length;
for (var i = 0; i < padLength; i++) {
result = padding + result;
}
return result;
},
/*
* Returns an escape sequence for given character. Uses \x for characters <=
* 0xFF to save space, \u for the rest.
*
* The code needs to be in sync with the code template in the compilation
* function for "action" nodes.
*/
escape: function(ch) {
var charCode = ch.charCodeAt(0);
var escapeChar;
var length;
if (charCode <= 0xFF) {
escapeChar = 'x';
length = 2;
} else {
escapeChar = 'u';
length = 4;
}
return '\\' + escapeChar + utils.padLeft(charCode.toString(16).toUpperCase(), '0', length);
},
/*
* Surrounds the string with quotes and escapes characters inside so that the
* result is a valid JavaScript string.
*
* The code needs to be in sync with the code template in the compilation
* function for "action" nodes.
*/
quote: function(s) {
/*
* ECMA-262, 5th ed., 7.8.4: All characters may appear literally in a string
* literal except for the closing quote character, backslash, carriage
* return, line separator, paragraph separator, and line feed. Any character
* may appear in the form of an escape sequence.
*
* For portability, we also escape all control and non-ASCII characters.
* Note that "\0" and "\v" escape sequences are not used because JSHint does
* not like the first and IE the second.
*/
return '"' + s
.replace(/\\/g, '\\\\') // backslash
.replace(/"/g, '\\"') // closing quote character
.replace(/\x08/g, '\\b') // backspace
.replace(/\t/g, '\\t') // horizontal tab
.replace(/\n/g, '\\n') // line feed
.replace(/\f/g, '\\f') // form feed
.replace(/\r/g, '\\r') // carriage return
.replace(/[\x00-\x07\x0B\x0E-\x1F\x80-\uFFFF]/g, utils.escape)
+ '"';
},
/*
* Escapes characters inside the string so that it can be used as a list of
* characters in a character class of a regular expression.
*/
quoteForRegexpClass: function(s) {
/*
* Based on ECMA-262, 5th ed., 7.8.5 & 15.10.1.
*
* For portability, we also escape all control and non-ASCII characters.
*/
return s
.replace(/\\/g, '\\\\') // backslash
.replace(/\//g, '\\/') // closing slash
.replace(/\]/g, '\\]') // closing bracket
.replace(/\^/g, '\\^') // caret
.replace(/-/g, '\\-') // dash
.replace(/\0/g, '\\0') // null
.replace(/\t/g, '\\t') // horizontal tab
.replace(/\n/g, '\\n') // line feed
.replace(/\v/g, '\\x0B') // vertical tab
.replace(/\f/g, '\\f') // form feed
.replace(/\r/g, '\\r') // carriage return
.replace(/[\x01-\x08\x0E-\x1F\x80-\uFFFF]/g, utils.escape);
},
/*
* Builds a node visitor -- a function which takes a node and any number of
* other parameters, calls an appropriate function according to the node type,
* passes it all its parameters and returns its value. The functions for
* various node types are passed in a parameter to |buildNodeVisitor| as a
* hash.
*/
buildNodeVisitor: function(functions) {
return function(node) {
return functions[node.type].apply(null, arguments);
};
},
findRuleByName: function(ast, name) {
return utils.find(ast.rules, function(r) { return r.name === name; });
},
indexOfRuleByName: function(ast, name) {
return utils.indexOf(ast.rules, function(r) { return r.name === name; });
}
};
module.exports = utils;
});
modules.define("grammar-error", function(module, require) {
var utils = require("./utils");
/* Thrown when the grammar contains an error. */
module.exports = function(message) {
this.name = "GrammarError";
this.message = message;
};
utils.subclass(module.exports, Error);
});
modules.define("parser", function(module, require) {
module.exports = (function() {
/*
* Generated by PEG.js 0.8.0.
*
* http://pegjs.majda.cz/
*/
function peg$subclass(child, parent) {
function ctor() { this.constructor = child; }
ctor.prototype = parent.prototype;
child.prototype = new ctor();
}
function SyntaxError(message, expected, found, offset, line, column) {
this.message = message;
this.expected = expected;
this.found = found;
this.offset = offset;
this.line = line;
this.column = column;
this.name = "SyntaxError";
}
peg$subclass(SyntaxError, Error);
function parse(input) {
var options = arguments.length > 1 ? arguments[1] : {},
peg$FAILED = {},
peg$startRuleFunctions = { grammar: peg$parsegrammar },
peg$startRuleFunction = peg$parsegrammar,
peg$c0 = peg$FAILED,
peg$c1 = null,
peg$c2 = [],
peg$c3 = function(initializer, rules) {
return {
type: "grammar",
initializer: initializer,
rules: rules
};
},
peg$c4 = function(code) {
return {
type: "initializer",
code: code
};
},
peg$c5 = function(name, displayName, expression) {
return {
type: "rule",
name: name,
expression: displayName !== null
? {
type: "named",
name: displayName,
expression: expression
}
: expression
};
},
peg$c6 = function(head, tail) {
if (tail.length > 0) {
var alternatives = [head].concat(utils.map(
tail,
function(element) { return element[1]; }
));
return {
type: "choice",
alternatives: alternatives
};
} else {
return head;
}
},
peg$c7 = function(elements, code) {
var expression = elements.length !== 1
? {
type: "sequence",
elements: elements
}
: elements[0];
return {
type: "action",
expression: expression,
code: code
};
},
peg$c8 = function(elements) {
return elements.length !== 1
? {
type: "sequence",
elements: elements
}
: elements[0];
},
peg$c9 = function(label, expression) {
return {
type: "labeled",
label: label,
expression: expression
};
},
peg$c10 = function(expression) {
return {
type: "text",
expression: expression
};
},
peg$c11 = function(code) {
return {
type: "semantic_and",
code: code
};
},
peg$c12 = function(expression) {
return {
type: "simple_and",
expression: expression
};
},
peg$c13 = function(code) {
return {
type: "semantic_not",
code: code
};
},
peg$c14 = function(expression) {
return {
type: "simple_not",
expression: expression
};
},
peg$c15 = function(expression) {
return {
type: "optional",
expression: expression
};
},
peg$c16 = function(expression) {
return {
type: "zero_or_more",
expression: expression
};
},
peg$c17 = function(expression) {
return {
type: "one_or_more",
expression: expression
};
},
peg$c18 = void 0,
peg$c19 = function(name) {
return {
type: "rule_ref",
name: name
};
},
peg$c20 = function() { return { type: "any" }; },
peg$c21 = function(expression) { return expression; },
peg$c22 = { type: "other", description: "action" },
peg$c23 = function(braced) { return braced.substr(1, braced.length - 2); },
peg$c24 = "{",
peg$c25 = { type: "literal", value: "{", description: "\"{\"" },
peg$c26 = "}",
peg$c27 = { type: "literal", value: "}", description: "\"}\"" },
peg$c28 = /^[^{}]/,
peg$c29 = { type: "class", value: "[^{}]", description: "[^{}]" },
peg$c30 = "=",
peg$c31 = { type: "literal", value: "=", description: "\"=\"" },
peg$c32 = function() { return "="; },
peg$c33 = ":",
peg$c34 = { type: "literal", value: ":", description: "\":\"" },
peg$c35 = function() { return ":"; },
peg$c36 = ";",
peg$c37 = { type: "literal", value: ";", description: "\";\"" },
peg$c38 = function() { return ";"; },
peg$c39 = "/",
peg$c40 = { type: "literal", value: "/", description: "\"/\"" },
peg$c41 = function() { return "/"; },
peg$c42 = "&",
peg$c43 = { type: "literal", value: "&", description: "\"&\"" },
peg$c44 = function() { return "&"; },
peg$c45 = "!",
peg$c46 = { type: "literal", value: "!", description: "\"!\"" },
peg$c47 = function() { return "!"; },
peg$c48 = "$",
peg$c49 = { type: "literal", value: "$", description: "\"$\"" },
peg$c50 = function() { return "$"; },
peg$c51 = "?",
peg$c52 = { type: "literal", value: "?", description: "\"?\"" },
peg$c53 = function() { return "?"; },
peg$c54 = "*",
peg$c55 = { type: "literal", value: "*", description: "\"*\"" },
peg$c56 = function() { return "*"; },
peg$c57 = "+",
peg$c58 = { type: "literal", value: "+", description: "\"+\"" },
peg$c59 = function() { return "+"; },
peg$c60 = "(",
peg$c61 = { type: "literal", value: "(", description: "\"(\"" },
peg$c62 = function() { return "("; },
peg$c63 = ")",
peg$c64 = { type: "literal", value: ")", description: "\")\"" },
peg$c65 = function() { return ")"; },
peg$c66 = ".",
peg$c67 = { type: "literal", value: ".", description: "\".\"" },
peg$c68 = function() { return "."; },
peg$c69 = { type: "other", description: "identifier" },
peg$c70 = "_",
peg$c71 = { type: "literal", value: "_", description: "\"_\"" },
peg$c72 = function(chars) { return chars; },
peg$c73 = { type: "other", description: "literal" },
peg$c74 = "i",
peg$c75 = { type: "literal", value: "i", description: "\"i\"" },
peg$c76 = function(value, flags) {
return {
type: "literal",
value: value,
ignoreCase: flags === "i"
};
},
peg$c77 = { type: "other", description: "string" },
peg$c78 = function(string) { return string; },
peg$c79 = "\"",
peg$c80 = { type: "literal", value: "\"", description: "\"\\\"\"" },
peg$c81 = function(chars) { return chars.join(""); },
peg$c82 = "\\",
peg$c83 = { type: "literal", value: "\\", description: "\"\\\\\"" },
peg$c84 = { type: "any", description: "any character" },
peg$c85 = function(char_) { return char_; },
peg$c86 = "'",
peg$c87 = { type: "literal", value: "'", description: "\"'\"" },
peg$c88 = { type: "other", description: "character class" },
peg$c89 = "[",
peg$c90 = { type: "literal", value: "[", description: "\"[\"" },
peg$c91 = "^",
peg$c92 = { type: "literal", value: "^", description: "\"^\"" },
peg$c93 = "]",
peg$c94 = { type: "literal", value: "]", description: "\"]\"" },
peg$c95 = function(inverted, parts, flags) {
var partsConverted = utils.map(parts, function(part) { return part.data; });
var rawText = "["
+ (inverted !== null ? inverted : "")
+ utils.map(parts, function(part) { return part.rawText; }).join("")
+ "]"
+ (flags !== null ? flags : "");
return {
type: "class",
parts: partsConverted,
// FIXME: Get the raw text from the input directly.
rawText: rawText,
inverted: inverted === "^",
ignoreCase: flags === "i"
};
},
peg$c96 = "-",
peg$c97 = { type: "literal", value: "-", description: "\"-\"" },
peg$c98 = function(begin, end) {
if (begin.data.charCodeAt(0) > end.data.charCodeAt(0)) {
error(
"Invalid character range: " + begin.rawText + "-" + end.rawText + "."
);
}
return {
data: [begin.data, end.data],
// FIXME: Get the raw text from the input directly.
rawText: begin.rawText + "-" + end.rawText
};
},
peg$c99 = function(char_) {
return {
data: char_,
// FIXME: Get the raw text from the input directly.
rawText: utils.quoteForRegexpClass(char_)
};
},
peg$c100 = "x",
peg$c101 = { type: "literal", value: "x", description: "\"x\"" },
peg$c102 = "u",
peg$c103 = { type: "literal", value: "u", description: "\"u\"" },
peg$c104 = function(char_) {
return char_
.replace("b", "\b")
.replace("f", "\f")
.replace("n", "\n")
.replace("r", "\r")
.replace("t", "\t")
.replace("v", "\x0B"); // IE does not recognize "\v".
},
peg$c105 = "\\0",
peg$c106 = { type: "literal", value: "\\0", description: "\"\\\\0\"" },
peg$c107 = function() { return "\x00"; },
peg$c108 = "\\x",
peg$c109 = { type: "literal", value: "\\x", description: "\"\\\\x\"" },
peg$c110 = function(digits) {
return String.fromCharCode(parseInt(digits, 16));
},
peg$c111 = "\\u",
peg$c112 = { type: "literal", value: "\\u", description: "\"\\\\u\"" },
peg$c113 = function(eol) { return eol; },
peg$c114 = /^[0-9]/,
peg$c115 = { type: "class", value: "[0-9]", description: "[0-9]" },
peg$c116 = /^[0-9a-fA-F]/,
peg$c117 = { type: "class", value: "[0-9a-fA-F]", description: "[0-9a-fA-F]" },
peg$c118 = /^[a-z]/,
peg$c119 = { type: "class", value: "[a-z]", description: "[a-z]" },
peg$c120 = /^[A-Z]/,
peg$c121 = { type: "class", value: "[A-Z]", description: "[A-Z]" },
peg$c122 = { type: "other", description: "comment" },
peg$c123 = "//",
peg$c124 = { type: "literal", value: "//", description: "\"//\"" },
peg$c125 = "/*",
peg$c126 = { type: "literal", value: "/*", description: "\"/*\"" },
peg$c127 = "*/",
peg$c128 = { type: "literal", value: "*/", description: "\"*/\"" },
peg$c129 = { type: "other", description: "end of line" },
peg$c130 = "\n",
peg$c131 = { type: "literal", value: "\n", description: "\"\\n\"" },
peg$c132 = "\r\n",
peg$c133 = { type: "literal", value: "\r\n", description: "\"\\r\\n\"" },
peg$c134 = "\r",
peg$c135 = { type: "literal", value: "\r", description: "\"\\r\"" },
peg$c136 = "\u2028",
peg$c137 = { type: "literal", value: "\u2028", description: "\"\\u2028\"" },
peg$c138 = "\u2029",
peg$c139 = { type: "literal", value: "\u2029", description: "\"\\u2029\"" },
peg$c140 = /^[\n\r\u2028\u2029]/,
peg$c141 = { type: "class", value: "[\\n\\r\\u2028\\u2029]", description: "[\\n\\r\\u2028\\u2029]" },
peg$c142 = { type: "other", description: "whitespace" },
peg$c143 = /^[ \t\x0B\f\xA0\uFEFF\u1680\u180E\u2000-\u200A\u202F\u205F\u3000]/,
peg$c144 = { type: "class", value: "[ \\t\\x0B\\f\\xA0\\uFEFF\\u1680\\u180E\\u2000-\\u200A\\u202F\\u205F\\u3000]", description: "[ \\t\\x0B\\f\\xA0\\uFEFF\\u1680\\u180E\\u2000-\\u200A\\u202F\\u205F\\u3000]" },
peg$currPos = 0,
peg$reportedPos = 0,
peg$cachedPos = 0,
peg$cachedPosDetails = { line: 1, column: 1, seenCR: false },
peg$maxFailPos = 0,
peg$maxFailExpected = [],
peg$silentFails = 0,
peg$result;
if ("startRule" in options) {
if (!(options.startRule in peg$startRuleFunctions)) {
throw new Error("Can't start parsing from rule \"" + options.startRule + "\".");
}
peg$startRuleFunction = peg$startRuleFunctions[options.startRule];
}
function text() {
return input.substring(peg$reportedPos, peg$currPos);
}
function offset() {
return peg$reportedPos;
}
function line() {
return peg$computePosDetails(peg$reportedPos).line;
}
function column() {
return peg$computePosDetails(peg$reportedPos).column;
}
function expected(description) {
throw peg$buildException(
null,
[{ type: "other", description: description }],
peg$reportedPos
);
}
function error(message) {
throw peg$buildException(message, null, peg$reportedPos);
}
function peg$computePosDetails(pos) {
function advance(details, startPos, endPos) {
var p, ch;
for (p = startPos; p < endPos; p++) {
ch = input.charAt(p);
if (ch === "\n") {
if (!details.seenCR) { details.line++; }
details.column = 1;
details.seenCR = false;
} else if (ch === "\r" || ch === "\u2028" || ch === "\u2029") {
details.line++;
details.column = 1;
details.seenCR = true;
} else {
details.column++;
details.seenCR = false;
}
}
}
if (peg$cachedPos !== pos) {
if (peg$cachedPos > pos) {
peg$cachedPos = 0;
peg$cachedPosDetails = { line: 1, column: 1, seenCR: false };
}
advance(peg$cachedPosDetails, peg$cachedPos, pos);
peg$cachedPos = pos;
}
return peg$cachedPosDetails;
}
function peg$fail(expected) {
if (peg$currPos < peg$maxFailPos) { return; }
if (peg$currPos > peg$maxFailPos) {
peg$maxFailPos = peg$currPos;
peg$maxFailExpected = [];
}
peg$maxFailExpected.push(expected);
}
function peg$buildException(message, expected, pos) {
function cleanupExpected(expected) {
var i = 1;
expected.sort(function(a, b) {
if (a.description < b.description) {
return -1;
} else if (a.description > b.description) {
return 1;
} else {
return 0;
}
});
while (i < expected.length) {
if (expected[i - 1] === expected[i]) {
expected.splice(i, 1);
} else {
i++;
}
}
}
function buildMessage(expected, found) {
function stringEscape(s) {
function hex(ch) { return ch.charCodeAt(0).toString(16).toUpperCase(); }
return s
.replace(/\\/g, '\\\\')
.replace(/"/g, '\\"')
.replace(/\x08/g, '\\b')
.replace(/\t/g, '\\t')
.replace(/\n/g, '\\n')
.replace(/\f/g, '\\f')
.replace(/\r/g, '\\r')
.replace(/[\x00-\x07\x0B\x0E\x0F]/g, function(ch) { return '\\x0' + hex(ch); })
.replace(/[\x10-\x1F\x80-\xFF]/g, function(ch) { return '\\x' + hex(ch); })
.replace(/[\u0180-\u0FFF]/g, function(ch) { return '\\u0' + hex(ch); })
.replace(/[\u1080-\uFFFF]/g, function(ch) { return '\\u' + hex(ch); });
}
var expectedDescs = new Array(expected.length),
expectedDesc, foundDesc, i;
for (i = 0; i < expected.length; i++) {
expectedDescs[i] = expected[i].description;
}
expectedDesc = expected.length > 1
? expectedDescs.slice(0, -1).join(", ")
+ " or "
+ expectedDescs[expected.length - 1]
: expectedDescs[0];
foundDesc = found ? "\"" + stringEscape(found) + "\"" : "end of input";
return "Expected " + expectedDesc + " but " + foundDesc + " found.";
}
var posDetails = peg$computePosDetails(pos),
found = pos < input.length ? input.charAt(pos) : null;
if (expected !== null) {
cleanupExpected(expected);
}
return new SyntaxError(
message !== null ? message : buildMessage(expected, found),
expected,
found,
pos,
posDetails.line,
posDetails.column
);
}
function peg$parsegrammar() {
var s0, s1, s2, s3, s4;
s0 = peg$currPos;
s1 = peg$parse__();
if (s1 !== peg$FAILED) {
s2 = peg$parseinitializer();
if (s2 === peg$FAILED) {
s2 = peg$c1;
}
if (s2 !== peg$FAILED) {
s3 = [];
s4 = peg$parserule();
if (s4 !== peg$FAILED) {
while (s4 !== peg$FAILED) {
s3.push(s4);
s4 = peg$parserule();
}
} else {
s3 = peg$c0;
}
if (s3 !== peg$FAILED) {
peg$reportedPos = s0;
s1 = peg$c3(s2, s3);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$c0;
}
} else {
peg$currPos = s0;
s0 = peg$c0;
}
} else {
peg$currPos = s0;
s0 = peg$c0;
}
return s0;
}
function peg$parseinitializer() {
var s0, s1, s2;
s0 = peg$currPos;
s1 = peg$parseaction();
if (s1 !== peg$FAILED) {
s2 = peg$parsesemicolon();
if (s2 === peg$FAILED) {
s2 = peg$c1;
}
if (s2 !== peg$FAILED) {
peg$reportedPos = s0;
s1 = peg$c4(s1);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$c0;
}
} else {
peg$currPos = s0;
s0 = peg$c0;
}
return s0;
}
function peg$parserule() {
var s0, s1, s2, s3, s4, s5;
s0 = peg$currPos;
s1 = peg$parseidentifier();
if (s1 !== peg$FAILED) {
s2 = peg$parsestring();
if (s2 === peg$FAILED) {
s2 = peg$c1;
}
if (s2 !== peg$FAILED) {
s3 = peg$parseequals();
if (s3 !== peg$FAILED) {
s4 = peg$parsechoice();
if (s4 !== peg$FAILED) {
s5 = peg$parsesemicolon();
if (s5 === peg$FAILED) {
s5 = peg$c1;
}
if (s5 !== peg$FAILED) {
peg$reportedPos = s0;
s1 = peg$c5(s1, s2, s4);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$c0;
}
} else {
peg$currPos = s0;
s0 = peg$c0;
}
} else {
peg$currPos = s0;
s0 = peg$c0;
}
} else {
peg$currPos = s0;
s0 = peg$c0;
}
} else {
peg$currPos = s0;
s0 = peg$c0;
}
return s0;
}
function peg$parsechoice() {
var s0, s1, s2, s3, s4, s5;
s0 = peg$currPos;
s1 = peg$parsesequence();
if (s1 !== peg$FAILED) {
s2 = [];
s3 = peg$currPos;
s4 = peg$parseslash();
if (s4 !== peg$FAILED) {
s5 = peg$parsesequence();
if (s5 !== peg$FAILED) {
s4 = [s4, s5];
s3 = s4;
} else {
peg$currPos = s3;
s3 = peg$c0;
}
} else {
peg$currPos = s3;
s3 = peg$c0;
}
while (s3 !== peg$FAILED) {
s2.push(s3);
s3 = peg$currPos;
s4 = peg$parseslash();
if (s4 !== peg$FAILED) {
s5 = peg$parsesequence();
if (s5 !== peg$FAILED) {
s4 = [s4, s5];
s3 = s4;
} else {
peg$currPos = s3;
s3 = peg$c0;
}
} else {
peg$currPos = s3;
s3 = peg$c0;
}
}
if (s2 !== peg$FAILED) {
peg$reportedPos = s0;
s1 = peg$c6(s1, s2);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$c0;
}
} else {
peg$currPos = s0;
s0 = peg$c0;
}
return s0;
}
function peg$parsesequence() {
var s0, s1, s2;
s0 = peg$currPos;
s1 = [];
s2 = peg$parselabeled();
while (s2 !== peg$FAILED) {
s1.push(s2);
s2 = peg$parselabeled();
}
if (s1 !== peg$FAILED) {
s2 = peg$parseaction();
if (s2 !== peg$FAILED) {
peg$reportedPos = s0;
s1 = peg$c7(s1, s2);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$c0;
}
} else {
peg$currPos = s0;
s0 = peg$c0;
}
if (s0 === peg$FAILED) {
s0 = peg$currPos;
s1 = [];
s2 = peg$parselabeled();
while (s2 !== peg$FAILED) {
s1.push(s2);
s2 = peg$parselabeled();
}
if (s1 !== peg$FAILED) {
peg$reportedPos = s0;
s1 = peg$c8(s1);
}
s0 = s1;
}
return s0;
}
function peg$parselabeled() {
var s0, s1, s2, s3;