/*
 * Generated by PEG.js 0.10.0.
 *
 * http://pegjs.org/
 */

"use strict";

function peg$subclass(child, parent) {
  function ctor() { this.constructor = child; }
  ctor.prototype = parent.prototype;
  child.prototype = new ctor();
}

function peg$SyntaxError(message, expected, found, location) {
  this.message  = message;
  this.expected = expected;
  this.found    = found;
  this.location = location;
  this.name     = "SyntaxError";

  if (typeof Error.captureStackTrace === "function") {
    Error.captureStackTrace(this, peg$SyntaxError);
  }
}

peg$subclass(peg$SyntaxError, Error);

peg$SyntaxError.buildMessage = function(expected, found) {
  var DESCRIBE_EXPECTATION_FNS = {
        literal: function(expectation) {
          return "\"" + literalEscape(expectation.text) + "\"";
        },

        "class": function(expectation) {
          var escapedParts = "",
              i;

          for (i = 0; i < expectation.parts.length; i++) {
            escapedParts += expectation.parts[i] instanceof Array
              ? classEscape(expectation.parts[i][0]) + "-" + classEscape(expectation.parts[i][1])
              : classEscape(expectation.parts[i]);
          }

          return "[" + (expectation.inverted ? "^" : "") + escapedParts + "]";
        },

        any: function(expectation) {
          return "any character";
        },

        end: function(expectation) {
          return "end of input";
        },

        other: function(expectation) {
          return expectation.description;
        }
      };

  function hex(ch) {
    return ch.charCodeAt(0).toString(16).toUpperCase();
  }

  function literalEscape(s) {
    return s
      .replace(/\\/g, '\\\\')
      .replace(/"/g,  '\\"')
      .replace(/\0/g, '\\0')
      .replace(/\t/g, '\\t')
      .replace(/\n/g, '\\n')
      .replace(/\r/g, '\\r')
      .replace(/[\x00-\x0F]/g,          function(ch) { return '\\x0' + hex(ch); })
      .replace(/[\x10-\x1F\x7F-\x9F]/g, function(ch) { return '\\x'  + hex(ch); });
  }

  function classEscape(s) {
    return s
      .replace(/\\/g, '\\\\')
      .replace(/\]/g, '\\]')
      .replace(/\^/g, '\\^')
      .replace(/-/g,  '\\-')
      .replace(/\0/g, '\\0')
      .replace(/\t/g, '\\t')
      .replace(/\n/g, '\\n')
      .replace(/\r/g, '\\r')
      .replace(/[\x00-\x0F]/g,          function(ch) { return '\\x0' + hex(ch); })
      .replace(/[\x10-\x1F\x7F-\x9F]/g, function(ch) { return '\\x'  + hex(ch); });
  }

  function describeExpectation(expectation) {
    return DESCRIBE_EXPECTATION_FNS[expectation.type](expectation);
  }

  function describeExpected(expected) {
    var descriptions = new Array(expected.length),
        i, j;

    for (i = 0; i < expected.length; i++) {
      descriptions[i] = describeExpectation(expected[i]);
    }

    descriptions.sort();

    if (descriptions.length > 0) {
      for (i = 1, j = 1; i < descriptions.length; i++) {
        if (descriptions[i - 1] !== descriptions[i]) {
          descriptions[j] = descriptions[i];
          j++;
        }
      }
      descriptions.length = j;
    }

    switch (descriptions.length) {
      case 1:
        return descriptions[0];

      case 2:
        return descriptions[0] + " or " + descriptions[1];

      default:
        return descriptions.slice(0, -1).join(", ")
          + ", or "
          + descriptions[descriptions.length - 1];
    }
  }

  function describeFound(found) {
    return found ? "\"" + literalEscape(found) + "\"" : "end of input";
  }

  return "Expected " + describeExpected(expected) + " but " + describeFound(found) + " found.";
};

function peg$parse(input, options) {
  options = options !== void 0 ? options : {};

  var peg$FAILED = {},

      peg$startRuleFunctions = { Start: peg$parseStart },
      peg$startRuleFunction  = peg$parseStart,

      peg$c0 = function(line) { return line ? line : [] },
      peg$c1 = function(command, type, then) { return [ { command, type } ].concat(then || []) },
      peg$c2 = function(command, type) { return [ { command, type: type || ';' } ] },
      peg$c3 = function(then) { return then },
      peg$c4 = ";",
      peg$c5 = peg$literalExpectation(";", false),
      peg$c6 = "&",
      peg$c7 = peg$literalExpectation("&", false),
      peg$c8 = function(chain, then) { return then ? { chain, then } : { chain } },
      peg$c9 = function(type, then) { return { type, line: then } },
      peg$c10 = "&&",
      peg$c11 = peg$literalExpectation("&&", false),
      peg$c12 = "||",
      peg$c13 = peg$literalExpectation("||", false),
      peg$c14 = function(main, then) { return then ? { ...main, then } : main },
      peg$c15 = function(type, then) { return { type, chain: then } },
      peg$c16 = "|&",
      peg$c17 = peg$literalExpectation("|&", false),
      peg$c18 = "|",
      peg$c19 = peg$literalExpectation("|", false),
      peg$c20 = "=",
      peg$c21 = peg$literalExpectation("=", false),
      peg$c22 = function(name, arg) { return { name, args: [arg] } },
      peg$c23 = function(name) { return { name, args: [] } },
      peg$c24 = "(",
      peg$c25 = peg$literalExpectation("(", false),
      peg$c26 = ")",
      peg$c27 = peg$literalExpectation(")", false),
      peg$c28 = function(subshell, args) { return { type: `subshell`, subshell, args } },
      peg$c29 = "{",
      peg$c30 = peg$literalExpectation("{", false),
      peg$c31 = "}",
      peg$c32 = peg$literalExpectation("}", false),
      peg$c33 = function(group, args) { return { type: `group`, group, args } },
      peg$c34 = function(envs, args) { return { type: `command`, args, envs } },
      peg$c35 = function(envs) { return { type: `envs`, envs } },
      peg$c36 = function(args) { return args },
      peg$c37 = function(arg) { return arg },
      peg$c38 = /^[0-9]/,
      peg$c39 = peg$classExpectation([["0", "9"]], false, false),
      peg$c40 = function(fd, redirect, arg) { return { type: `redirection`, subtype: redirect, fd: fd !== null ? parseInt(fd) : null, args: [arg] } },
      peg$c41 = ">>",
      peg$c42 = peg$literalExpectation(">>", false),
      peg$c43 = ">&",
      peg$c44 = peg$literalExpectation(">&", false),
      peg$c45 = ">",
      peg$c46 = peg$literalExpectation(">", false),
      peg$c47 = "<<<",
      peg$c48 = peg$literalExpectation("<<<", false),
      peg$c49 = "<&",
      peg$c50 = peg$literalExpectation("<&", false),
      peg$c51 = "<",
      peg$c52 = peg$literalExpectation("<", false),
      peg$c53 = function(segments) { return { type: `argument`, segments: [].concat(... segments) } },
      peg$c54 = function(string) { return string },
      peg$c55 = "$'",
      peg$c56 = peg$literalExpectation("$'", false),
      peg$c57 = "'",
      peg$c58 = peg$literalExpectation("'", false),
      peg$c59 = function(text) { return [ { type: `text`, text } ] },
      peg$c60 = "\"\"",
      peg$c61 = peg$literalExpectation("\"\"", false),
      peg$c62 = function() { return { type: `text`, text: `` } },
      peg$c63 = "\"",
      peg$c64 = peg$literalExpectation("\"", false),
      peg$c65 = function(segments) { return segments },
      peg$c66 = function(arithmetic) { return { type: `arithmetic`, arithmetic, quoted: true} },
      peg$c67 = function(shell) { return { type: `shell`, shell, quoted: true } },
      peg$c68 = function(variable) { return { type: `variable`, ...variable, quoted: true } },
      peg$c69 = function(text) { return { type: `text`, text } },
      peg$c70 = function(arithmetic) { return { type: `arithmetic`, arithmetic, quoted: false} },
      peg$c71 = function(shell) { return { type: `shell`, shell, quoted: false } },
      peg$c72 = function(variable) { return { type: `variable`, ...variable, quoted: false } },
      peg$c73 = function(pattern) { return { type: `glob`, pattern } },
      peg$c74 = /^[^']/,
      peg$c75 = peg$classExpectation(["'"], true, false),
      peg$c76 = function(chars) { return chars.join(``) },
      peg$c77 = /^[^$"]/,
      peg$c78 = peg$classExpectation(["$", "\""], true, false),
      peg$c79 = "\\\n",
      peg$c80 = peg$literalExpectation("\\\n", false),
      peg$c81 = function() { return `` },
      peg$c82 = "\\",
      peg$c83 = peg$literalExpectation("\\", false),
      peg$c84 = /^[\\$"`]/,
      peg$c85 = peg$classExpectation(["\\", "$", "\"", "`"], false, false),
      peg$c86 = function(c) { return c },
      peg$c87 = "\\a",
      peg$c88 = peg$literalExpectation("\\a", false),
      peg$c89 = function() { return '\a' },
      peg$c90 = "\\b",
      peg$c91 = peg$literalExpectation("\\b", false),
      peg$c92 = function() { return '\b' },
      peg$c93 = /^[Ee]/,
      peg$c94 = peg$classExpectation(["E", "e"], false, false),
      peg$c95 = function() { return '\x1b' },
      peg$c96 = "\\f",
      peg$c97 = peg$literalExpectation("\\f", false),
      peg$c98 = function() { return '\f' },
      peg$c99 = "\\n",
      peg$c100 = peg$literalExpectation("\\n", false),
      peg$c101 = function() { return '\n' },
      peg$c102 = "\\r",
      peg$c103 = peg$literalExpectation("\\r", false),
      peg$c104 = function() { return '\r' },
      peg$c105 = "\\t",
      peg$c106 = peg$literalExpectation("\\t", false),
      peg$c107 = function() { return '\t' },
      peg$c108 = "\\v",
      peg$c109 = peg$literalExpectation("\\v", false),
      peg$c110 = function() { return '\v' },
      peg$c111 = /^[\\'"?]/,
      peg$c112 = peg$classExpectation(["\\", "'", "\"", "?"], false, false),
      peg$c113 = function(c) { return String.fromCharCode(parseInt(c, 16)) },
      peg$c114 = "\\x",
      peg$c115 = peg$literalExpectation("\\x", false),
      peg$c116 = "\\u",
      peg$c117 = peg$literalExpectation("\\u", false),
      peg$c118 = "\\U",
      peg$c119 = peg$literalExpectation("\\U", false),
      peg$c120 = function(c) { return String.fromCodePoint(parseInt(c, 16)) },
      peg$c121 = /^[0-7]/,
      peg$c122 = peg$classExpectation([["0", "7"]], false, false),
      peg$c123 = /^[0-9a-fA-f]/,
      peg$c124 = peg$classExpectation([["0", "9"], ["a", "f"], ["A", "f"]], false, false),
      peg$c125 = peg$anyExpectation(),
      peg$c126 = "{}",
      peg$c127 = peg$literalExpectation("{}", false),
      peg$c128 = function() { return '{}' },
      peg$c129 = "-",
      peg$c130 = peg$literalExpectation("-", false),
      peg$c131 = "+",
      peg$c132 = peg$literalExpectation("+", false),
      peg$c133 = ".",
      peg$c134 = peg$literalExpectation(".", false),
      peg$c135 = function(sign, left, right) { return { type: `number`, value: (sign === '-' ? -1 : 1) * parseFloat(left.join(``) + `.` + right.join(``)) } },
      peg$c136 = function(sign, value) { return { type: `number`, value: (sign === '-' ? -1 : 1) *  parseInt(value.join(``)) } },
      peg$c137 = function(variable) { return { type: `variable`, ...variable } },
      peg$c138 = function(name) { return { type: `variable`, name } },
      peg$c139 = function(value) { return value },
      peg$c140 = "*",
      peg$c141 = peg$literalExpectation("*", false),
      peg$c142 = "/",
      peg$c143 = peg$literalExpectation("/", false),
      peg$c144 = function(left, op, right) { return { type: op === `*` ? `multiplication` : `division`, right } },
      peg$c145 = function(left, rest) {
          return rest.reduce((left, right) => ({ left, ...right }), left)
        },
      peg$c146 = function(left, op, right) { return { type: op === `+` ? `addition` : `subtraction`, right } },
      peg$c147 = "$((",
      peg$c148 = peg$literalExpectation("$((", false),
      peg$c149 = "))",
      peg$c150 = peg$literalExpectation("))", false),
      peg$c151 = function(arithmetic) { return arithmetic },
      peg$c152 = "$(",
      peg$c153 = peg$literalExpectation("$(", false),
      peg$c154 = function(command) { return command },
      peg$c155 = "${",
      peg$c156 = peg$literalExpectation("${", false),
      peg$c157 = ":-",
      peg$c158 = peg$literalExpectation(":-", false),
      peg$c159 = function(name, arg) { return { name, defaultValue: arg } },
      peg$c160 = ":-}",
      peg$c161 = peg$literalExpectation(":-}", false),
      peg$c162 = function(name) { return { name, defaultValue: [] } },
      peg$c163 = ":+",
      peg$c164 = peg$literalExpectation(":+", false),
      peg$c165 = function(name, arg) { return { name, alternativeValue: arg } },
      peg$c166 = ":+}",
      peg$c167 = peg$literalExpectation(":+}", false),
      peg$c168 = function(name) { return { name, alternativeValue: [] } },
      peg$c169 = function(name) { return { name } },
      peg$c170 = "$",
      peg$c171 = peg$literalExpectation("$", false),
      peg$c172 = function(pattern) { return options.isGlobPattern(pattern) },
      peg$c173 = function(pattern) { return pattern },
      peg$c174 = /^[a-zA-Z0-9_]/,
      peg$c175 = peg$classExpectation([["a", "z"], ["A", "Z"], ["0", "9"], "_"], false, false),
      peg$c176 = function() { return text() },
      peg$c177 = /^[$@*?#a-zA-Z0-9_\-]/,
      peg$c178 = peg$classExpectation(["$", "@", "*", "?", "#", ["a", "z"], ["A", "Z"], ["0", "9"], "_", "-"], false, false),
      peg$c179 = /^[()}<>$|&; \t"']/,
      peg$c180 = peg$classExpectation(["(", ")", "}", "<", ">", "$", "|", "&", ";", " ", "\t", "\"", "'"], false, false),
      peg$c181 = /^[<>&; \t"']/,
      peg$c182 = peg$classExpectation(["<", ">", "&", ";", " ", "\t", "\"", "'"], false, false),
      peg$c183 = /^[ \t]/,
      peg$c184 = peg$classExpectation([" ", "\t"], false, false),

      peg$currPos          = 0,
      peg$savedPos         = 0,
      peg$posDetailsCache  = [{ line: 1, column: 1 }],
      peg$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$savedPos, peg$currPos);
  }

  function location() {
    return peg$computeLocation(peg$savedPos, peg$currPos);
  }

  function expected(description, location) {
    location = location !== void 0 ? location : peg$computeLocation(peg$savedPos, peg$currPos)

    throw peg$buildStructuredError(
      [peg$otherExpectation(description)],
      input.substring(peg$savedPos, peg$currPos),
      location
    );
  }

  function error(message, location) {
    location = location !== void 0 ? location : peg$computeLocation(peg$savedPos, peg$currPos)

    throw peg$buildSimpleError(message, location);
  }

  function peg$literalExpectation(text, ignoreCase) {
    return { type: "literal", text: text, ignoreCase: ignoreCase };
  }

  function peg$classExpectation(parts, inverted, ignoreCase) {
    return { type: "class", parts: parts, inverted: inverted, ignoreCase: ignoreCase };
  }

  function peg$anyExpectation() {
    return { type: "any" };
  }

  function peg$endExpectation() {
    return { type: "end" };
  }

  function peg$otherExpectation(description) {
    return { type: "other", description: description };
  }

  function peg$computePosDetails(pos) {
    var details = peg$posDetailsCache[pos], p;

    if (details) {
      return details;
    } else {
      p = pos - 1;
      while (!peg$posDetailsCache[p]) {
        p--;
      }

      details = peg$posDetailsCache[p];
      details = {
        line:   details.line,
        column: details.column
      };

      while (p < pos) {
        if (input.charCodeAt(p) === 10) {
          details.line++;
          details.column = 1;
        } else {
          details.column++;
        }

        p++;
      }

      peg$posDetailsCache[pos] = details;
      return details;
    }
  }

  function peg$computeLocation(startPos, endPos) {
    var startPosDetails = peg$computePosDetails(startPos),
        endPosDetails   = peg$computePosDetails(endPos);

    return {
      start: {
        offset: startPos,
        line:   startPosDetails.line,
        column: startPosDetails.column
      },
      end: {
        offset: endPos,
        line:   endPosDetails.line,
        column: endPosDetails.column
      }
    };
  }

  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$buildSimpleError(message, location) {
    return new peg$SyntaxError(message, null, null, location);
  }

  function peg$buildStructuredError(expected, found, location) {
    return new peg$SyntaxError(
      peg$SyntaxError.buildMessage(expected, found),
      expected,
      found,
      location
    );
  }

  function peg$parseStart() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseS();
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseS();
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseShellLine();
      if (s2 === peg$FAILED) {
        s2 = null;
      }
      if (s2 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c0(s2);
        s0 = s1;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseShellLine() {
    var s0, s1, s2, s3, s4;

    s0 = peg$currPos;
    s1 = peg$parseCommandLine();
    if (s1 !== peg$FAILED) {
      s2 = [];
      s3 = peg$parseS();
      while (s3 !== peg$FAILED) {
        s2.push(s3);
        s3 = peg$parseS();
      }
      if (s2 !== peg$FAILED) {
        s3 = peg$parseShellLineType();
        if (s3 !== peg$FAILED) {
          s4 = peg$parseShellLineThen();
          if (s4 === peg$FAILED) {
            s4 = null;
          }
          if (s4 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c1(s1, s3, s4);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      s1 = peg$parseCommandLine();
      if (s1 !== peg$FAILED) {
        s2 = [];
        s3 = peg$parseS();
        while (s3 !== peg$FAILED) {
          s2.push(s3);
          s3 = peg$parseS();
        }
        if (s2 !== peg$FAILED) {
          s3 = peg$parseShellLineType();
          if (s3 === peg$FAILED) {
            s3 = null;
          }
          if (s3 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c2(s1, s3);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    }

    return s0;
  }

  function peg$parseShellLineThen() {
    var s0, s1, s2, s3, s4;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseS();
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseS();
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseShellLine();
      if (s2 !== peg$FAILED) {
        s3 = [];
        s4 = peg$parseS();
        while (s4 !== peg$FAILED) {
          s3.push(s4);
          s4 = peg$parseS();
        }
        if (s3 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c3(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseShellLineType() {
    var s0;

    if (input.charCodeAt(peg$currPos) === 59) {
      s0 = peg$c4;
      peg$currPos++;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c5); }
    }
    if (s0 === peg$FAILED) {
      if (input.charCodeAt(peg$currPos) === 38) {
        s0 = peg$c6;
        peg$currPos++;
      } else {
        s0 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c7); }
      }
    }

    return s0;
  }

  function peg$parseCommandLine() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = peg$parseCommandChain();
    if (s1 !== peg$FAILED) {
      s2 = peg$parseCommandLineThen();
      if (s2 === peg$FAILED) {
        s2 = null;
      }
      if (s2 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c8(s1, s2);
        s0 = s1;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseCommandLineThen() {
    var s0, s1, s2, s3, s4, s5, s6;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseS();
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseS();
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseCommandLineType();
      if (s2 !== peg$FAILED) {
        s3 = [];
        s4 = peg$parseS();
        while (s4 !== peg$FAILED) {
          s3.push(s4);
          s4 = peg$parseS();
        }
        if (s3 !== peg$FAILED) {
          s4 = peg$parseCommandLine();
          if (s4 !== peg$FAILED) {
            s5 = [];
            s6 = peg$parseS();
            while (s6 !== peg$FAILED) {
              s5.push(s6);
              s6 = peg$parseS();
            }
            if (s5 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c9(s2, s4);
              s0 = s1;
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseCommandLineType() {
    var s0;

    if (input.substr(peg$currPos, 2) === peg$c10) {
      s0 = peg$c10;
      peg$currPos += 2;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c11); }
    }
    if (s0 === peg$FAILED) {
      if (input.substr(peg$currPos, 2) === peg$c12) {
        s0 = peg$c12;
        peg$currPos += 2;
      } else {
        s0 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c13); }
      }
    }

    return s0;
  }

  function peg$parseCommandChain() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = peg$parseCommand();
    if (s1 !== peg$FAILED) {
      s2 = peg$parseCommandChainThen();
      if (s2 === peg$FAILED) {
        s2 = null;
      }
      if (s2 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c14(s1, s2);
        s0 = s1;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseCommandChainThen() {
    var s0, s1, s2, s3, s4, s5, s6;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseS();
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseS();
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseCommandChainType();
      if (s2 !== peg$FAILED) {
        s3 = [];
        s4 = peg$parseS();
        while (s4 !== peg$FAILED) {
          s3.push(s4);
          s4 = peg$parseS();
        }
        if (s3 !== peg$FAILED) {
          s4 = peg$parseCommandChain();
          if (s4 !== peg$FAILED) {
            s5 = [];
            s6 = peg$parseS();
            while (s6 !== peg$FAILED) {
              s5.push(s6);
              s6 = peg$parseS();
            }
            if (s5 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c15(s2, s4);
              s0 = s1;
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseCommandChainType() {
    var s0;

    if (input.substr(peg$currPos, 2) === peg$c16) {
      s0 = peg$c16;
      peg$currPos += 2;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c17); }
    }
    if (s0 === peg$FAILED) {
      if (input.charCodeAt(peg$currPos) === 124) {
        s0 = peg$c18;
        peg$currPos++;
      } else {
        s0 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c19); }
      }
    }

    return s0;
  }

  function peg$parseVariableAssignment() {
    var s0, s1, s2, s3, s4, s5;

    s0 = peg$currPos;
    s1 = peg$parseEnvVariable();
    if (s1 !== peg$FAILED) {
      if (input.charCodeAt(peg$currPos) === 61) {
        s2 = peg$c20;
        peg$currPos++;
      } else {
        s2 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c21); }
      }
      if (s2 !== peg$FAILED) {
        s3 = peg$parseStrictValueArgument();
        if (s3 !== peg$FAILED) {
          s4 = [];
          s5 = peg$parseS();
          while (s5 !== peg$FAILED) {
            s4.push(s5);
            s5 = peg$parseS();
          }
          if (s4 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c22(s1, s3);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      s1 = peg$parseEnvVariable();
      if (s1 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 61) {
          s2 = peg$c20;
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c21); }
        }
        if (s2 !== peg$FAILED) {
          s3 = [];
          s4 = peg$parseS();
          while (s4 !== peg$FAILED) {
            s3.push(s4);
            s4 = peg$parseS();
          }
          if (s3 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c23(s1);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    }

    return s0;
  }

  function peg$parseCommand() {
    var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseS();
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseS();
    }
    if (s1 !== peg$FAILED) {
      if (input.charCodeAt(peg$currPos) === 40) {
        s2 = peg$c24;
        peg$currPos++;
      } else {
        s2 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c25); }
      }
      if (s2 !== peg$FAILED) {
        s3 = [];
        s4 = peg$parseS();
        while (s4 !== peg$FAILED) {
          s3.push(s4);
          s4 = peg$parseS();
        }
        if (s3 !== peg$FAILED) {
          s4 = peg$parseShellLine();
          if (s4 !== peg$FAILED) {
            s5 = [];
            s6 = peg$parseS();
            while (s6 !== peg$FAILED) {
              s5.push(s6);
              s6 = peg$parseS();
            }
            if (s5 !== peg$FAILED) {
              if (input.charCodeAt(peg$currPos) === 41) {
                s6 = peg$c26;
                peg$currPos++;
              } else {
                s6 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$c27); }
              }
              if (s6 !== peg$FAILED) {
                s7 = [];
                s8 = peg$parseS();
                while (s8 !== peg$FAILED) {
                  s7.push(s8);
                  s8 = peg$parseS();
                }
                if (s7 !== peg$FAILED) {
                  s8 = [];
                  s9 = peg$parseRedirectArgument();
                  while (s9 !== peg$FAILED) {
                    s8.push(s9);
                    s9 = peg$parseRedirectArgument();
                  }
                  if (s8 !== peg$FAILED) {
                    s9 = [];
                    s10 = peg$parseS();
                    while (s10 !== peg$FAILED) {
                      s9.push(s10);
                      s10 = peg$parseS();
                    }
                    if (s9 !== peg$FAILED) {
                      peg$savedPos = s0;
                      s1 = peg$c28(s4, s8);
                      s0 = s1;
                    } else {
                      peg$currPos = s0;
                      s0 = peg$FAILED;
                    }
                  } else {
                    peg$currPos = s0;
                    s0 = peg$FAILED;
                  }
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      s1 = [];
      s2 = peg$parseS();
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$parseS();
      }
      if (s1 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 123) {
          s2 = peg$c29;
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c30); }
        }
        if (s2 !== peg$FAILED) {
          s3 = [];
          s4 = peg$parseS();
          while (s4 !== peg$FAILED) {
            s3.push(s4);
            s4 = peg$parseS();
          }
          if (s3 !== peg$FAILED) {
            s4 = peg$parseShellLine();
            if (s4 !== peg$FAILED) {
              s5 = [];
              s6 = peg$parseS();
              while (s6 !== peg$FAILED) {
                s5.push(s6);
                s6 = peg$parseS();
              }
              if (s5 !== peg$FAILED) {
                if (input.charCodeAt(peg$currPos) === 125) {
                  s6 = peg$c31;
                  peg$currPos++;
                } else {
                  s6 = peg$FAILED;
                  if (peg$silentFails === 0) { peg$fail(peg$c32); }
                }
                if (s6 !== peg$FAILED) {
                  s7 = [];
                  s8 = peg$parseS();
                  while (s8 !== peg$FAILED) {
                    s7.push(s8);
                    s8 = peg$parseS();
                  }
                  if (s7 !== peg$FAILED) {
                    s8 = [];
                    s9 = peg$parseRedirectArgument();
                    while (s9 !== peg$FAILED) {
                      s8.push(s9);
                      s9 = peg$parseRedirectArgument();
                    }
                    if (s8 !== peg$FAILED) {
                      s9 = [];
                      s10 = peg$parseS();
                      while (s10 !== peg$FAILED) {
                        s9.push(s10);
                        s10 = peg$parseS();
                      }
                      if (s9 !== peg$FAILED) {
                        peg$savedPos = s0;
                        s1 = peg$c33(s4, s8);
                        s0 = s1;
                      } else {
                        peg$currPos = s0;
                        s0 = peg$FAILED;
                      }
                    } else {
                      peg$currPos = s0;
                      s0 = peg$FAILED;
                    }
                  } else {
                    peg$currPos = s0;
                    s0 = peg$FAILED;
                  }
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = [];
        s2 = peg$parseS();
        while (s2 !== peg$FAILED) {
          s1.push(s2);
          s2 = peg$parseS();
        }
        if (s1 !== peg$FAILED) {
          s2 = [];
          s3 = peg$parseVariableAssignment();
          while (s3 !== peg$FAILED) {
            s2.push(s3);
            s3 = peg$parseVariableAssignment();
          }
          if (s2 !== peg$FAILED) {
            s3 = [];
            s4 = peg$parseS();
            while (s4 !== peg$FAILED) {
              s3.push(s4);
              s4 = peg$parseS();
            }
            if (s3 !== peg$FAILED) {
              s4 = [];
              s5 = peg$parseArgument();
              if (s5 !== peg$FAILED) {
                while (s5 !== peg$FAILED) {
                  s4.push(s5);
                  s5 = peg$parseArgument();
                }
              } else {
                s4 = peg$FAILED;
              }
              if (s4 !== peg$FAILED) {
                s5 = [];
                s6 = peg$parseS();
                while (s6 !== peg$FAILED) {
                  s5.push(s6);
                  s6 = peg$parseS();
                }
                if (s5 !== peg$FAILED) {
                  peg$savedPos = s0;
                  s1 = peg$c34(s2, s4);
                  s0 = s1;
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          s1 = [];
          s2 = peg$parseS();
          while (s2 !== peg$FAILED) {
            s1.push(s2);
            s2 = peg$parseS();
          }
          if (s1 !== peg$FAILED) {
            s2 = [];
            s3 = peg$parseVariableAssignment();
            if (s3 !== peg$FAILED) {
              while (s3 !== peg$FAILED) {
                s2.push(s3);
                s3 = peg$parseVariableAssignment();
              }
            } else {
              s2 = peg$FAILED;
            }
            if (s2 !== peg$FAILED) {
              s3 = [];
              s4 = peg$parseS();
              while (s4 !== peg$FAILED) {
                s3.push(s4);
                s4 = peg$parseS();
              }
              if (s3 !== peg$FAILED) {
                peg$savedPos = s0;
                s1 = peg$c35(s2);
                s0 = s1;
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        }
      }
    }

    return s0;
  }

  function peg$parseCommandString() {
    var s0, s1, s2, s3, s4;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseS();
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseS();
    }
    if (s1 !== peg$FAILED) {
      s2 = [];
      s3 = peg$parseValueArgument();
      if (s3 !== peg$FAILED) {
        while (s3 !== peg$FAILED) {
          s2.push(s3);
          s3 = peg$parseValueArgument();
        }
      } else {
        s2 = peg$FAILED;
      }
      if (s2 !== peg$FAILED) {
        s3 = [];
        s4 = peg$parseS();
        while (s4 !== peg$FAILED) {
          s3.push(s4);
          s4 = peg$parseS();
        }
        if (s3 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c36(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseArgument() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseS();
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseS();
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseRedirectArgument();
      if (s2 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c37(s2);
        s0 = s1;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      s1 = [];
      s2 = peg$parseS();
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$parseS();
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$parseValueArgument();
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c37(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    }

    return s0;
  }

  function peg$parseRedirectArgument() {
    var s0, s1, s2, s3, s4;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseS();
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseS();
    }
    if (s1 !== peg$FAILED) {
      if (peg$c38.test(input.charAt(peg$currPos))) {
        s2 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s2 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c39); }
      }
      if (s2 === peg$FAILED) {
        s2 = null;
      }
      if (s2 !== peg$FAILED) {
        s3 = peg$parseRedirectType();
        if (s3 !== peg$FAILED) {
          s4 = peg$parseValueArgument();
          if (s4 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c40(s2, s3, s4);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseRedirectType() {
    var s0;

    if (input.substr(peg$currPos, 2) === peg$c41) {
      s0 = peg$c41;
      peg$currPos += 2;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c42); }
    }
    if (s0 === peg$FAILED) {
      if (input.substr(peg$currPos, 2) === peg$c43) {
        s0 = peg$c43;
        peg$currPos += 2;
      } else {
        s0 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c44); }
      }
      if (s0 === peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 62) {
          s0 = peg$c45;
          peg$currPos++;
        } else {
          s0 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c46); }
        }
        if (s0 === peg$FAILED) {
          if (input.substr(peg$currPos, 3) === peg$c47) {
            s0 = peg$c47;
            peg$currPos += 3;
          } else {
            s0 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c48); }
          }
          if (s0 === peg$FAILED) {
            if (input.substr(peg$currPos, 2) === peg$c49) {
              s0 = peg$c49;
              peg$currPos += 2;
            } else {
              s0 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c50); }
            }
            if (s0 === peg$FAILED) {
              if (input.charCodeAt(peg$currPos) === 60) {
                s0 = peg$c51;
                peg$currPos++;
              } else {
                s0 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$c52); }
              }
            }
          }
        }
      }
    }

    return s0;
  }

  function peg$parseValueArgument() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseS();
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseS();
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseStrictValueArgument();
      if (s2 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c37(s2);
        s0 = s1;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseStrictValueArgument() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseArgumentSegment();
    if (s2 !== peg$FAILED) {
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$parseArgumentSegment();
      }
    } else {
      s1 = peg$FAILED;
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c53(s1);
    }
    s0 = s1;

    return s0;
  }

  function peg$parseArgumentSegment() {
    var s0, s1;

    s0 = peg$currPos;
    s1 = peg$parseCQuoteString();
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c54(s1);
    }
    s0 = s1;
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      s1 = peg$parseSglQuoteString();
      if (s1 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c54(s1);
      }
      s0 = s1;
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = peg$parseDblQuoteString();
        if (s1 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c54(s1);
        }
        s0 = s1;
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          s1 = peg$parsePlainString();
          if (s1 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c54(s1);
          }
          s0 = s1;
        }
      }
    }

    return s0;
  }

  function peg$parseCQuoteString() {
    var s0, s1, s2, s3;

    s0 = peg$currPos;
    if (input.substr(peg$currPos, 2) === peg$c55) {
      s1 = peg$c55;
      peg$currPos += 2;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c56); }
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseCQuoteStringText();
      if (s2 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 39) {
          s3 = peg$c57;
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c58); }
        }
        if (s3 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c59(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseSglQuoteString() {
    var s0, s1, s2, s3;

    s0 = peg$currPos;
    if (input.charCodeAt(peg$currPos) === 39) {
      s1 = peg$c57;
      peg$currPos++;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c58); }
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseSglQuoteStringText();
      if (s2 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 39) {
          s3 = peg$c57;
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c58); }
        }
        if (s3 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c59(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseDblQuoteString() {
    var s0, s1, s2, s3;

    s0 = peg$currPos;
    if (input.substr(peg$currPos, 2) === peg$c60) {
      s1 = peg$c60;
      peg$currPos += 2;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c61); }
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c62();
    }
    s0 = s1;
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      if (input.charCodeAt(peg$currPos) === 34) {
        s1 = peg$c63;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c64); }
      }
      if (s1 !== peg$FAILED) {
        s2 = [];
        s3 = peg$parseDblQuoteStringSegment();
        while (s3 !== peg$FAILED) {
          s2.push(s3);
          s3 = peg$parseDblQuoteStringSegment();
        }
        if (s2 !== peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 34) {
            s3 = peg$c63;
            peg$currPos++;
          } else {
            s3 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c64); }
          }
          if (s3 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c65(s2);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    }

    return s0;
  }

  function peg$parsePlainString() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parsePlainStringSegment();
    if (s2 !== peg$FAILED) {
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$parsePlainStringSegment();
      }
    } else {
      s1 = peg$FAILED;
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c65(s1);
    }
    s0 = s1;

    return s0;
  }

  function peg$parseDblQuoteStringSegment() {
    var s0, s1;

    s0 = peg$currPos;
    s1 = peg$parseArithmetic();
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c66(s1);
    }
    s0 = s1;
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      s1 = peg$parseSubshell();
      if (s1 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c67(s1);
      }
      s0 = s1;
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = peg$parseVariable();
        if (s1 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c68(s1);
        }
        s0 = s1;
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          s1 = peg$parseDblQuoteStringText();
          if (s1 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c69(s1);
          }
          s0 = s1;
        }
      }
    }

    return s0;
  }

  function peg$parsePlainStringSegment() {
    var s0, s1;

    s0 = peg$currPos;
    s1 = peg$parseArithmetic();
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c70(s1);
    }
    s0 = s1;
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      s1 = peg$parseSubshell();
      if (s1 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c71(s1);
      }
      s0 = s1;
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = peg$parseVariable();
        if (s1 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c72(s1);
        }
        s0 = s1;
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          s1 = peg$parseGlob();
          if (s1 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c73(s1);
          }
          s0 = s1;
          if (s0 === peg$FAILED) {
            s0 = peg$currPos;
            s1 = peg$parsePlainStringText();
            if (s1 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c69(s1);
            }
            s0 = s1;
          }
        }
      }
    }

    return s0;
  }

  function peg$parseSglQuoteStringText() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    if (peg$c74.test(input.charAt(peg$currPos))) {
      s2 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s2 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c75); }
    }
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      if (peg$c74.test(input.charAt(peg$currPos))) {
        s2 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s2 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c75); }
      }
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c76(s1);
    }
    s0 = s1;

    return s0;
  }

  function peg$parseDblQuoteStringText() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseDblQuoteEscapedChar();
    if (s2 === peg$FAILED) {
      if (peg$c77.test(input.charAt(peg$currPos))) {
        s2 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s2 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c78); }
      }
    }
    if (s2 !== peg$FAILED) {
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$parseDblQuoteEscapedChar();
        if (s2 === peg$FAILED) {
          if (peg$c77.test(input.charAt(peg$currPos))) {
            s2 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s2 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c78); }
          }
        }
      }
    } else {
      s1 = peg$FAILED;
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c76(s1);
    }
    s0 = s1;

    return s0;
  }

  function peg$parseDblQuoteEscapedChar() {
    var s0, s1, s2;

    s0 = peg$currPos;
    if (input.substr(peg$currPos, 2) === peg$c79) {
      s1 = peg$c79;
      peg$currPos += 2;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c80); }
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c81();
    }
    s0 = s1;
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      if (input.charCodeAt(peg$currPos) === 92) {
        s1 = peg$c82;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c83); }
      }
      if (s1 !== peg$FAILED) {
        if (peg$c84.test(input.charAt(peg$currPos))) {
          s2 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c85); }
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c86(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    }

    return s0;
  }

  function peg$parseCQuoteStringText() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$parseCQuoteEscapedChar();
    if (s2 === peg$FAILED) {
      if (peg$c74.test(input.charAt(peg$currPos))) {
        s2 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s2 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c75); }
      }
    }
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$parseCQuoteEscapedChar();
      if (s2 === peg$FAILED) {
        if (peg$c74.test(input.charAt(peg$currPos))) {
          s2 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c75); }
        }
      }
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c76(s1);
    }
    s0 = s1;

    return s0;
  }

  function peg$parseCQuoteEscapedChar() {
    var s0, s1, s2;

    s0 = peg$currPos;
    if (input.substr(peg$currPos, 2) === peg$c87) {
      s1 = peg$c87;
      peg$currPos += 2;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c88); }
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c89();
    }
    s0 = s1;
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      if (input.substr(peg$currPos, 2) === peg$c90) {
        s1 = peg$c90;
        peg$currPos += 2;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c91); }
      }
      if (s1 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c92();
      }
      s0 = s1;
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        if (input.charCodeAt(peg$currPos) === 92) {
          s1 = peg$c82;
          peg$currPos++;
        } else {
          s1 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c83); }
        }
        if (s1 !== peg$FAILED) {
          if (peg$c93.test(input.charAt(peg$currPos))) {
            s2 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s2 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c94); }
          }
          if (s2 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c95();
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          if (input.substr(peg$currPos, 2) === peg$c96) {
            s1 = peg$c96;
            peg$currPos += 2;
          } else {
            s1 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c97); }
          }
          if (s1 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c98();
          }
          s0 = s1;
          if (s0 === peg$FAILED) {
            s0 = peg$currPos;
            if (input.substr(peg$currPos, 2) === peg$c99) {
              s1 = peg$c99;
              peg$currPos += 2;
            } else {
              s1 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c100); }
            }
            if (s1 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c101();
            }
            s0 = s1;
            if (s0 === peg$FAILED) {
              s0 = peg$currPos;
              if (input.substr(peg$currPos, 2) === peg$c102) {
                s1 = peg$c102;
                peg$currPos += 2;
              } else {
                s1 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$c103); }
              }
              if (s1 !== peg$FAILED) {
                peg$savedPos = s0;
                s1 = peg$c104();
              }
              s0 = s1;
              if (s0 === peg$FAILED) {
                s0 = peg$currPos;
                if (input.substr(peg$currPos, 2) === peg$c105) {
                  s1 = peg$c105;
                  peg$currPos += 2;
                } else {
                  s1 = peg$FAILED;
                  if (peg$silentFails === 0) { peg$fail(peg$c106); }
                }
                if (s1 !== peg$FAILED) {
                  peg$savedPos = s0;
                  s1 = peg$c107();
                }
                s0 = s1;
                if (s0 === peg$FAILED) {
                  s0 = peg$currPos;
                  if (input.substr(peg$currPos, 2) === peg$c108) {
                    s1 = peg$c108;
                    peg$currPos += 2;
                  } else {
                    s1 = peg$FAILED;
                    if (peg$silentFails === 0) { peg$fail(peg$c109); }
                  }
                  if (s1 !== peg$FAILED) {
                    peg$savedPos = s0;
                    s1 = peg$c110();
                  }
                  s0 = s1;
                  if (s0 === peg$FAILED) {
                    s0 = peg$currPos;
                    if (input.charCodeAt(peg$currPos) === 92) {
                      s1 = peg$c82;
                      peg$currPos++;
                    } else {
                      s1 = peg$FAILED;
                      if (peg$silentFails === 0) { peg$fail(peg$c83); }
                    }
                    if (s1 !== peg$FAILED) {
                      if (peg$c111.test(input.charAt(peg$currPos))) {
                        s2 = input.charAt(peg$currPos);
                        peg$currPos++;
                      } else {
                        s2 = peg$FAILED;
                        if (peg$silentFails === 0) { peg$fail(peg$c112); }
                      }
                      if (s2 !== peg$FAILED) {
                        peg$savedPos = s0;
                        s1 = peg$c86(s2);
                        s0 = s1;
                      } else {
                        peg$currPos = s0;
                        s0 = peg$FAILED;
                      }
                    } else {
                      peg$currPos = s0;
                      s0 = peg$FAILED;
                    }
                    if (s0 === peg$FAILED) {
                      s0 = peg$parseHexCodeString();
                    }
                  }
                }
              }
            }
          }
        }
      }
    }

    return s0;
  }

  function peg$parseHexCodeString() {
    var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11;

    s0 = peg$currPos;
    if (input.charCodeAt(peg$currPos) === 92) {
      s1 = peg$c82;
      peg$currPos++;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c83); }
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseHexCodeChar0();
      if (s2 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c113(s2);
        s0 = s1;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      if (input.substr(peg$currPos, 2) === peg$c114) {
        s1 = peg$c114;
        peg$currPos += 2;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c115); }
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$currPos;
        s3 = peg$currPos;
        s4 = peg$parseHexCodeChar0();
        if (s4 !== peg$FAILED) {
          s5 = peg$parseHexCodeChar();
          if (s5 !== peg$FAILED) {
            s4 = [s4, s5];
            s3 = s4;
          } else {
            peg$currPos = s3;
            s3 = peg$FAILED;
          }
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
        if (s3 === peg$FAILED) {
          s3 = peg$parseHexCodeChar0();
        }
        if (s3 !== peg$FAILED) {
          s2 = input.substring(s2, peg$currPos);
        } else {
          s2 = s3;
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c113(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        if (input.substr(peg$currPos, 2) === peg$c116) {
          s1 = peg$c116;
          peg$currPos += 2;
        } else {
          s1 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c117); }
        }
        if (s1 !== peg$FAILED) {
          s2 = peg$currPos;
          s3 = peg$currPos;
          s4 = peg$parseHexCodeChar();
          if (s4 !== peg$FAILED) {
            s5 = peg$parseHexCodeChar();
            if (s5 !== peg$FAILED) {
              s6 = peg$parseHexCodeChar();
              if (s6 !== peg$FAILED) {
                s7 = peg$parseHexCodeChar();
                if (s7 !== peg$FAILED) {
                  s4 = [s4, s5, s6, s7];
                  s3 = s4;
                } else {
                  peg$currPos = s3;
                  s3 = peg$FAILED;
                }
              } else {
                peg$currPos = s3;
                s3 = peg$FAILED;
              }
            } else {
              peg$currPos = s3;
              s3 = peg$FAILED;
            }
          } else {
            peg$currPos = s3;
            s3 = peg$FAILED;
          }
          if (s3 !== peg$FAILED) {
            s2 = input.substring(s2, peg$currPos);
          } else {
            s2 = s3;
          }
          if (s2 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c113(s2);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          if (input.substr(peg$currPos, 2) === peg$c118) {
            s1 = peg$c118;
            peg$currPos += 2;
          } else {
            s1 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c119); }
          }
          if (s1 !== peg$FAILED) {
            s2 = peg$currPos;
            s3 = peg$currPos;
            s4 = peg$parseHexCodeChar();
            if (s4 !== peg$FAILED) {
              s5 = peg$parseHexCodeChar();
              if (s5 !== peg$FAILED) {
                s6 = peg$parseHexCodeChar();
                if (s6 !== peg$FAILED) {
                  s7 = peg$parseHexCodeChar();
                  if (s7 !== peg$FAILED) {
                    s8 = peg$parseHexCodeChar();
                    if (s8 !== peg$FAILED) {
                      s9 = peg$parseHexCodeChar();
                      if (s9 !== peg$FAILED) {
                        s10 = peg$parseHexCodeChar();
                        if (s10 !== peg$FAILED) {
                          s11 = peg$parseHexCodeChar();
                          if (s11 !== peg$FAILED) {
                            s4 = [s4, s5, s6, s7, s8, s9, s10, s11];
                            s3 = s4;
                          } else {
                            peg$currPos = s3;
                            s3 = peg$FAILED;
                          }
                        } else {
                          peg$currPos = s3;
                          s3 = peg$FAILED;
                        }
                      } else {
                        peg$currPos = s3;
                        s3 = peg$FAILED;
                      }
                    } else {
                      peg$currPos = s3;
                      s3 = peg$FAILED;
                    }
                  } else {
                    peg$currPos = s3;
                    s3 = peg$FAILED;
                  }
                } else {
                  peg$currPos = s3;
                  s3 = peg$FAILED;
                }
              } else {
                peg$currPos = s3;
                s3 = peg$FAILED;
              }
            } else {
              peg$currPos = s3;
              s3 = peg$FAILED;
            }
            if (s3 !== peg$FAILED) {
              s2 = input.substring(s2, peg$currPos);
            } else {
              s2 = s3;
            }
            if (s2 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c120(s2);
              s0 = s1;
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        }
      }
    }

    return s0;
  }

  function peg$parseHexCodeChar0() {
    var s0;

    if (peg$c121.test(input.charAt(peg$currPos))) {
      s0 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c122); }
    }

    return s0;
  }

  function peg$parseHexCodeChar() {
    var s0;

    if (peg$c123.test(input.charAt(peg$currPos))) {
      s0 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c124); }
    }

    return s0;
  }

  function peg$parsePlainStringText() {
    var s0, s1, s2, s3, s4;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$currPos;
    if (input.charCodeAt(peg$currPos) === 92) {
      s3 = peg$c82;
      peg$currPos++;
    } else {
      s3 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c83); }
    }
    if (s3 !== peg$FAILED) {
      if (input.length > peg$currPos) {
        s4 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s4 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c125); }
      }
      if (s4 !== peg$FAILED) {
        peg$savedPos = s2;
        s3 = peg$c86(s4);
        s2 = s3;
      } else {
        peg$currPos = s2;
        s2 = peg$FAILED;
      }
    } else {
      peg$currPos = s2;
      s2 = peg$FAILED;
    }
    if (s2 === peg$FAILED) {
      s2 = peg$currPos;
      if (input.substr(peg$currPos, 2) === peg$c126) {
        s3 = peg$c126;
        peg$currPos += 2;
      } else {
        s3 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c127); }
      }
      if (s3 !== peg$FAILED) {
        peg$savedPos = s2;
        s3 = peg$c128();
      }
      s2 = s3;
      if (s2 === peg$FAILED) {
        s2 = peg$currPos;
        s3 = peg$currPos;
        peg$silentFails++;
        s4 = peg$parseSpecialShellChars();
        peg$silentFails--;
        if (s4 === peg$FAILED) {
          s3 = void 0;
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
        if (s3 !== peg$FAILED) {
          if (input.length > peg$currPos) {
            s4 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s4 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c125); }
          }
          if (s4 !== peg$FAILED) {
            peg$savedPos = s2;
            s3 = peg$c86(s4);
            s2 = s3;
          } else {
            peg$currPos = s2;
            s2 = peg$FAILED;
          }
        } else {
          peg$currPos = s2;
          s2 = peg$FAILED;
        }
      }
    }
    if (s2 !== peg$FAILED) {
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$currPos;
        if (input.charCodeAt(peg$currPos) === 92) {
          s3 = peg$c82;
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c83); }
        }
        if (s3 !== peg$FAILED) {
          if (input.length > peg$currPos) {
            s4 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s4 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c125); }
          }
          if (s4 !== peg$FAILED) {
            peg$savedPos = s2;
            s3 = peg$c86(s4);
            s2 = s3;
          } else {
            peg$currPos = s2;
            s2 = peg$FAILED;
          }
        } else {
          peg$currPos = s2;
          s2 = peg$FAILED;
        }
        if (s2 === peg$FAILED) {
          s2 = peg$currPos;
          if (input.substr(peg$currPos, 2) === peg$c126) {
            s3 = peg$c126;
            peg$currPos += 2;
          } else {
            s3 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c127); }
          }
          if (s3 !== peg$FAILED) {
            peg$savedPos = s2;
            s3 = peg$c128();
          }
          s2 = s3;
          if (s2 === peg$FAILED) {
            s2 = peg$currPos;
            s3 = peg$currPos;
            peg$silentFails++;
            s4 = peg$parseSpecialShellChars();
            peg$silentFails--;
            if (s4 === peg$FAILED) {
              s3 = void 0;
            } else {
              peg$currPos = s3;
              s3 = peg$FAILED;
            }
            if (s3 !== peg$FAILED) {
              if (input.length > peg$currPos) {
                s4 = input.charAt(peg$currPos);
                peg$currPos++;
              } else {
                s4 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$c125); }
              }
              if (s4 !== peg$FAILED) {
                peg$savedPos = s2;
                s3 = peg$c86(s4);
                s2 = s3;
              } else {
                peg$currPos = s2;
                s2 = peg$FAILED;
              }
            } else {
              peg$currPos = s2;
              s2 = peg$FAILED;
            }
          }
        }
      }
    } else {
      s1 = peg$FAILED;
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c76(s1);
    }
    s0 = s1;

    return s0;
  }

  function peg$parseArithmeticPrimary() {
    var s0, s1, s2, s3, s4, s5;

    s0 = peg$currPos;
    if (input.charCodeAt(peg$currPos) === 45) {
      s1 = peg$c129;
      peg$currPos++;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c130); }
    }
    if (s1 === peg$FAILED) {
      if (input.charCodeAt(peg$currPos) === 43) {
        s1 = peg$c131;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c132); }
      }
    }
    if (s1 === peg$FAILED) {
      s1 = null;
    }
    if (s1 !== peg$FAILED) {
      s2 = [];
      if (peg$c38.test(input.charAt(peg$currPos))) {
        s3 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s3 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c39); }
      }
      if (s3 !== peg$FAILED) {
        while (s3 !== peg$FAILED) {
          s2.push(s3);
          if (peg$c38.test(input.charAt(peg$currPos))) {
            s3 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s3 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c39); }
          }
        }
      } else {
        s2 = peg$FAILED;
      }
      if (s2 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 46) {
          s3 = peg$c133;
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c134); }
        }
        if (s3 !== peg$FAILED) {
          s4 = [];
          if (peg$c38.test(input.charAt(peg$currPos))) {
            s5 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s5 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c39); }
          }
          if (s5 !== peg$FAILED) {
            while (s5 !== peg$FAILED) {
              s4.push(s5);
              if (peg$c38.test(input.charAt(peg$currPos))) {
                s5 = input.charAt(peg$currPos);
                peg$currPos++;
              } else {
                s5 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$c39); }
              }
            }
          } else {
            s4 = peg$FAILED;
          }
          if (s4 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c135(s1, s2, s4);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      if (input.charCodeAt(peg$currPos) === 45) {
        s1 = peg$c129;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c130); }
      }
      if (s1 === peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 43) {
          s1 = peg$c131;
          peg$currPos++;
        } else {
          s1 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c132); }
        }
      }
      if (s1 === peg$FAILED) {
        s1 = null;
      }
      if (s1 !== peg$FAILED) {
        s2 = [];
        if (peg$c38.test(input.charAt(peg$currPos))) {
          s3 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c39); }
        }
        if (s3 !== peg$FAILED) {
          while (s3 !== peg$FAILED) {
            s2.push(s3);
            if (peg$c38.test(input.charAt(peg$currPos))) {
              s3 = input.charAt(peg$currPos);
              peg$currPos++;
            } else {
              s3 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c39); }
            }
          }
        } else {
          s2 = peg$FAILED;
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c136(s1, s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = peg$parseVariable();
        if (s1 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c137(s1);
        }
        s0 = s1;
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          s1 = peg$parseIdentifier();
          if (s1 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c138(s1);
          }
          s0 = s1;
          if (s0 === peg$FAILED) {
            s0 = peg$currPos;
            if (input.charCodeAt(peg$currPos) === 40) {
              s1 = peg$c24;
              peg$currPos++;
            } else {
              s1 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c25); }
            }
            if (s1 !== peg$FAILED) {
              s2 = [];
              s3 = peg$parseS();
              while (s3 !== peg$FAILED) {
                s2.push(s3);
                s3 = peg$parseS();
              }
              if (s2 !== peg$FAILED) {
                s3 = peg$parseArithmeticExpression();
                if (s3 !== peg$FAILED) {
                  s4 = [];
                  s5 = peg$parseS();
                  while (s5 !== peg$FAILED) {
                    s4.push(s5);
                    s5 = peg$parseS();
                  }
                  if (s4 !== peg$FAILED) {
                    if (input.charCodeAt(peg$currPos) === 41) {
                      s5 = peg$c26;
                      peg$currPos++;
                    } else {
                      s5 = peg$FAILED;
                      if (peg$silentFails === 0) { peg$fail(peg$c27); }
                    }
                    if (s5 !== peg$FAILED) {
                      peg$savedPos = s0;
                      s1 = peg$c139(s3);
                      s0 = s1;
                    } else {
                      peg$currPos = s0;
                      s0 = peg$FAILED;
                    }
                  } else {
                    peg$currPos = s0;
                    s0 = peg$FAILED;
                  }
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          }
        }
      }
    }

    return s0;
  }

  function peg$parseArithmeticTimesExpression() {
    var s0, s1, s2, s3, s4, s5, s6, s7;

    s0 = peg$currPos;
    s1 = peg$parseArithmeticPrimary();
    if (s1 !== peg$FAILED) {
      s2 = [];
      s3 = peg$currPos;
      s4 = [];
      s5 = peg$parseS();
      while (s5 !== peg$FAILED) {
        s4.push(s5);
        s5 = peg$parseS();
      }
      if (s4 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 42) {
          s5 = peg$c140;
          peg$currPos++;
        } else {
          s5 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c141); }
        }
        if (s5 === peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 47) {
            s5 = peg$c142;
            peg$currPos++;
          } else {
            s5 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c143); }
          }
        }
        if (s5 !== peg$FAILED) {
          s6 = [];
          s7 = peg$parseS();
          while (s7 !== peg$FAILED) {
            s6.push(s7);
            s7 = peg$parseS();
          }
          if (s6 !== peg$FAILED) {
            s7 = peg$parseArithmeticPrimary();
            if (s7 !== peg$FAILED) {
              peg$savedPos = s3;
              s4 = peg$c144(s1, s5, s7);
              s3 = s4;
            } else {
              peg$currPos = s3;
              s3 = peg$FAILED;
            }
          } else {
            peg$currPos = s3;
            s3 = peg$FAILED;
          }
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
      } else {
        peg$currPos = s3;
        s3 = peg$FAILED;
      }
      while (s3 !== peg$FAILED) {
        s2.push(s3);
        s3 = peg$currPos;
        s4 = [];
        s5 = peg$parseS();
        while (s5 !== peg$FAILED) {
          s4.push(s5);
          s5 = peg$parseS();
        }
        if (s4 !== peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 42) {
            s5 = peg$c140;
            peg$currPos++;
          } else {
            s5 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c141); }
          }
          if (s5 === peg$FAILED) {
            if (input.charCodeAt(peg$currPos) === 47) {
              s5 = peg$c142;
              peg$currPos++;
            } else {
              s5 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c143); }
            }
          }
          if (s5 !== peg$FAILED) {
            s6 = [];
            s7 = peg$parseS();
            while (s7 !== peg$FAILED) {
              s6.push(s7);
              s7 = peg$parseS();
            }
            if (s6 !== peg$FAILED) {
              s7 = peg$parseArithmeticPrimary();
              if (s7 !== peg$FAILED) {
                peg$savedPos = s3;
                s4 = peg$c144(s1, s5, s7);
                s3 = s4;
              } else {
                peg$currPos = s3;
                s3 = peg$FAILED;
              }
            } else {
              peg$currPos = s3;
              s3 = peg$FAILED;
            }
          } else {
            peg$currPos = s3;
            s3 = peg$FAILED;
          }
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
      }
      if (s2 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c145(s1, s2);
        s0 = s1;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseArithmeticExpression() {
    var s0, s1, s2, s3, s4, s5, s6, s7;

    s0 = peg$currPos;
    s1 = peg$parseArithmeticTimesExpression();
    if (s1 !== peg$FAILED) {
      s2 = [];
      s3 = peg$currPos;
      s4 = [];
      s5 = peg$parseS();
      while (s5 !== peg$FAILED) {
        s4.push(s5);
        s5 = peg$parseS();
      }
      if (s4 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 43) {
          s5 = peg$c131;
          peg$currPos++;
        } else {
          s5 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c132); }
        }
        if (s5 === peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 45) {
            s5 = peg$c129;
            peg$currPos++;
          } else {
            s5 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c130); }
          }
        }
        if (s5 !== peg$FAILED) {
          s6 = [];
          s7 = peg$parseS();
          while (s7 !== peg$FAILED) {
            s6.push(s7);
            s7 = peg$parseS();
          }
          if (s6 !== peg$FAILED) {
            s7 = peg$parseArithmeticTimesExpression();
            if (s7 !== peg$FAILED) {
              peg$savedPos = s3;
              s4 = peg$c146(s1, s5, s7);
              s3 = s4;
            } else {
              peg$currPos = s3;
              s3 = peg$FAILED;
            }
          } else {
            peg$currPos = s3;
            s3 = peg$FAILED;
          }
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
      } else {
        peg$currPos = s3;
        s3 = peg$FAILED;
      }
      while (s3 !== peg$FAILED) {
        s2.push(s3);
        s3 = peg$currPos;
        s4 = [];
        s5 = peg$parseS();
        while (s5 !== peg$FAILED) {
          s4.push(s5);
          s5 = peg$parseS();
        }
        if (s4 !== peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 43) {
            s5 = peg$c131;
            peg$currPos++;
          } else {
            s5 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c132); }
          }
          if (s5 === peg$FAILED) {
            if (input.charCodeAt(peg$currPos) === 45) {
              s5 = peg$c129;
              peg$currPos++;
            } else {
              s5 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c130); }
            }
          }
          if (s5 !== peg$FAILED) {
            s6 = [];
            s7 = peg$parseS();
            while (s7 !== peg$FAILED) {
              s6.push(s7);
              s7 = peg$parseS();
            }
            if (s6 !== peg$FAILED) {
              s7 = peg$parseArithmeticTimesExpression();
              if (s7 !== peg$FAILED) {
                peg$savedPos = s3;
                s4 = peg$c146(s1, s5, s7);
                s3 = s4;
              } else {
                peg$currPos = s3;
                s3 = peg$FAILED;
              }
            } else {
              peg$currPos = s3;
              s3 = peg$FAILED;
            }
          } else {
            peg$currPos = s3;
            s3 = peg$FAILED;
          }
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
      }
      if (s2 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c145(s1, s2);
        s0 = s1;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseArithmetic() {
    var s0, s1, s2, s3, s4, s5;

    s0 = peg$currPos;
    if (input.substr(peg$currPos, 3) === peg$c147) {
      s1 = peg$c147;
      peg$currPos += 3;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c148); }
    }
    if (s1 !== peg$FAILED) {
      s2 = [];
      s3 = peg$parseS();
      while (s3 !== peg$FAILED) {
        s2.push(s3);
        s3 = peg$parseS();
      }
      if (s2 !== peg$FAILED) {
        s3 = peg$parseArithmeticExpression();
        if (s3 !== peg$FAILED) {
          s4 = [];
          s5 = peg$parseS();
          while (s5 !== peg$FAILED) {
            s4.push(s5);
            s5 = peg$parseS();
          }
          if (s4 !== peg$FAILED) {
            if (input.substr(peg$currPos, 2) === peg$c149) {
              s5 = peg$c149;
              peg$currPos += 2;
            } else {
              s5 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c150); }
            }
            if (s5 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c151(s3);
              s0 = s1;
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseSubshell() {
    var s0, s1, s2, s3;

    s0 = peg$currPos;
    if (input.substr(peg$currPos, 2) === peg$c152) {
      s1 = peg$c152;
      peg$currPos += 2;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c153); }
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseShellLine();
      if (s2 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 41) {
          s3 = peg$c26;
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c27); }
        }
        if (s3 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c154(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseVariable() {
    var s0, s1, s2, s3, s4, s5;

    s0 = peg$currPos;
    if (input.substr(peg$currPos, 2) === peg$c155) {
      s1 = peg$c155;
      peg$currPos += 2;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c156); }
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseIdentifier();
      if (s2 !== peg$FAILED) {
        if (input.substr(peg$currPos, 2) === peg$c157) {
          s3 = peg$c157;
          peg$currPos += 2;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c158); }
        }
        if (s3 !== peg$FAILED) {
          s4 = peg$parseCommandString();
          if (s4 !== peg$FAILED) {
            if (input.charCodeAt(peg$currPos) === 125) {
              s5 = peg$c31;
              peg$currPos++;
            } else {
              s5 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c32); }
            }
            if (s5 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c159(s2, s4);
              s0 = s1;
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      if (input.substr(peg$currPos, 2) === peg$c155) {
        s1 = peg$c155;
        peg$currPos += 2;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c156); }
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$parseIdentifier();
        if (s2 !== peg$FAILED) {
          if (input.substr(peg$currPos, 3) === peg$c160) {
            s3 = peg$c160;
            peg$currPos += 3;
          } else {
            s3 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c161); }
          }
          if (s3 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c162(s2);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        if (input.substr(peg$currPos, 2) === peg$c155) {
          s1 = peg$c155;
          peg$currPos += 2;
        } else {
          s1 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c156); }
        }
        if (s1 !== peg$FAILED) {
          s2 = peg$parseIdentifier();
          if (s2 !== peg$FAILED) {
            if (input.substr(peg$currPos, 2) === peg$c163) {
              s3 = peg$c163;
              peg$currPos += 2;
            } else {
              s3 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c164); }
            }
            if (s3 !== peg$FAILED) {
              s4 = peg$parseCommandString();
              if (s4 !== peg$FAILED) {
                if (input.charCodeAt(peg$currPos) === 125) {
                  s5 = peg$c31;
                  peg$currPos++;
                } else {
                  s5 = peg$FAILED;
                  if (peg$silentFails === 0) { peg$fail(peg$c32); }
                }
                if (s5 !== peg$FAILED) {
                  peg$savedPos = s0;
                  s1 = peg$c165(s2, s4);
                  s0 = s1;
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          if (input.substr(peg$currPos, 2) === peg$c155) {
            s1 = peg$c155;
            peg$currPos += 2;
          } else {
            s1 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c156); }
          }
          if (s1 !== peg$FAILED) {
            s2 = peg$parseIdentifier();
            if (s2 !== peg$FAILED) {
              if (input.substr(peg$currPos, 3) === peg$c166) {
                s3 = peg$c166;
                peg$currPos += 3;
              } else {
                s3 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$c167); }
              }
              if (s3 !== peg$FAILED) {
                peg$savedPos = s0;
                s1 = peg$c168(s2);
                s0 = s1;
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
          if (s0 === peg$FAILED) {
            s0 = peg$currPos;
            if (input.substr(peg$currPos, 2) === peg$c155) {
              s1 = peg$c155;
              peg$currPos += 2;
            } else {
              s1 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c156); }
            }
            if (s1 !== peg$FAILED) {
              s2 = peg$parseIdentifier();
              if (s2 !== peg$FAILED) {
                if (input.charCodeAt(peg$currPos) === 125) {
                  s3 = peg$c31;
                  peg$currPos++;
                } else {
                  s3 = peg$FAILED;
                  if (peg$silentFails === 0) { peg$fail(peg$c32); }
                }
                if (s3 !== peg$FAILED) {
                  peg$savedPos = s0;
                  s1 = peg$c169(s2);
                  s0 = s1;
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
            if (s0 === peg$FAILED) {
              s0 = peg$currPos;
              if (input.charCodeAt(peg$currPos) === 36) {
                s1 = peg$c170;
                peg$currPos++;
              } else {
                s1 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$c171); }
              }
              if (s1 !== peg$FAILED) {
                s2 = peg$parseIdentifier();
                if (s2 !== peg$FAILED) {
                  peg$savedPos = s0;
                  s1 = peg$c169(s2);
                  s0 = s1;
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            }
          }
        }
      }
    }

    return s0;
  }

  function peg$parseGlob() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = peg$parseGlobText();
    if (s1 !== peg$FAILED) {
      peg$savedPos = peg$currPos;
      s2 = peg$c172(s1);
      if (s2) {
        s2 = void 0;
      } else {
        s2 = peg$FAILED;
      }
      if (s2 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c173(s1);
        s0 = s1;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseGlobText() {
    var s0, s1, s2, s3, s4;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$currPos;
    s3 = peg$currPos;
    peg$silentFails++;
    s4 = peg$parseGlobSpecialShellChars();
    peg$silentFails--;
    if (s4 === peg$FAILED) {
      s3 = void 0;
    } else {
      peg$currPos = s3;
      s3 = peg$FAILED;
    }
    if (s3 !== peg$FAILED) {
      if (input.length > peg$currPos) {
        s4 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s4 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c125); }
      }
      if (s4 !== peg$FAILED) {
        peg$savedPos = s2;
        s3 = peg$c86(s4);
        s2 = s3;
      } else {
        peg$currPos = s2;
        s2 = peg$FAILED;
      }
    } else {
      peg$currPos = s2;
      s2 = peg$FAILED;
    }
    if (s2 !== peg$FAILED) {
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$currPos;
        s3 = peg$currPos;
        peg$silentFails++;
        s4 = peg$parseGlobSpecialShellChars();
        peg$silentFails--;
        if (s4 === peg$FAILED) {
          s3 = void 0;
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
        if (s3 !== peg$FAILED) {
          if (input.length > peg$currPos) {
            s4 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s4 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c125); }
          }
          if (s4 !== peg$FAILED) {
            peg$savedPos = s2;
            s3 = peg$c86(s4);
            s2 = s3;
          } else {
            peg$currPos = s2;
            s2 = peg$FAILED;
          }
        } else {
          peg$currPos = s2;
          s2 = peg$FAILED;
        }
      }
    } else {
      s1 = peg$FAILED;
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c76(s1);
    }
    s0 = s1;

    return s0;
  }

  function peg$parseEnvVariable() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    if (peg$c174.test(input.charAt(peg$currPos))) {
      s2 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s2 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c175); }
    }
    if (s2 !== peg$FAILED) {
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        if (peg$c174.test(input.charAt(peg$currPos))) {
          s2 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c175); }
        }
      }
    } else {
      s1 = peg$FAILED;
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c176();
    }
    s0 = s1;

    return s0;
  }

  function peg$parseIdentifier() {
    var s0, s1, s2;

    s0 = peg$currPos;
    s1 = [];
    if (peg$c177.test(input.charAt(peg$currPos))) {
      s2 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s2 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c178); }
    }
    if (s2 !== peg$FAILED) {
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        if (peg$c177.test(input.charAt(peg$currPos))) {
          s2 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c178); }
        }
      }
    } else {
      s1 = peg$FAILED;
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c176();
    }
    s0 = s1;

    return s0;
  }

  function peg$parseSpecialShellChars() {
    var s0;

    if (peg$c179.test(input.charAt(peg$currPos))) {
      s0 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c180); }
    }

    return s0;
  }

  function peg$parseGlobSpecialShellChars() {
    var s0;

    if (peg$c181.test(input.charAt(peg$currPos))) {
      s0 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c182); }
    }

    return s0;
  }

  function peg$parseS() {
    var s0, s1;

    s0 = [];
    if (peg$c183.test(input.charAt(peg$currPos))) {
      s1 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$c184); }
    }
    if (s1 !== peg$FAILED) {
      while (s1 !== peg$FAILED) {
        s0.push(s1);
        if (peg$c183.test(input.charAt(peg$currPos))) {
          s1 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s1 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c184); }
        }
      }
    } else {
      s0 = peg$FAILED;
    }

    return s0;
  }

  peg$result = peg$startRuleFunction();

  if (peg$result !== peg$FAILED && peg$currPos === input.length) {
    return peg$result;
  } else {
    if (peg$result !== peg$FAILED && peg$currPos < input.length) {
      peg$fail(peg$endExpectation());
    }

    throw peg$buildStructuredError(
      peg$maxFailExpected,
      peg$maxFailPos < input.length ? input.charAt(peg$maxFailPos) : null,
      peg$maxFailPos < input.length
        ? peg$computeLocation(peg$maxFailPos, peg$maxFailPos + 1)
        : peg$computeLocation(peg$maxFailPos, peg$maxFailPos)
    );
  }
}

module.exports = {
  SyntaxError: peg$SyntaxError,
  parse:       peg$parse
};