jssm.es5.cjs.js

require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/*
 * 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 literal(expectation) {
      return "\"" + literalEscape(expectation.text) + "\"";
    },

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

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

    other: function other(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 = { Expression: peg$parseExpression },
      peg$startRuleFunction = peg$parseExpression,
      peg$c0 = function peg$c0(e) {
    return e;
  },
      peg$c1 = peg$otherExpectation("forward arrow"),
      peg$c2 = "->",
      peg$c3 = peg$literalExpectation("->", false),
      peg$c4 = peg$otherExpectation("two way arrow"),
      peg$c5 = "<->",
      peg$c6 = peg$literalExpectation("<->", false),
      peg$c7 = /^[0-9a-fA-F]/,
      peg$c8 = peg$classExpectation([["0", "9"], ["a", "f"], ["A", "F"]], false, false),
      peg$c9 = "\"",
      peg$c10 = peg$literalExpectation("\"", false),
      peg$c11 = "\\",
      peg$c12 = peg$literalExpectation("\\", false),
      peg$c13 = "/",
      peg$c14 = peg$literalExpectation("/", false),
      peg$c15 = "b",
      peg$c16 = peg$literalExpectation("b", false),
      peg$c17 = function peg$c17() {
    return "\b";
  },
      peg$c18 = "f",
      peg$c19 = peg$literalExpectation("f", false),
      peg$c20 = function peg$c20() {
    return "\f";
  },
      peg$c21 = "n",
      peg$c22 = peg$literalExpectation("n", false),
      peg$c23 = function peg$c23() {
    return "\n";
  },
      peg$c24 = "r",
      peg$c25 = peg$literalExpectation("r", false),
      peg$c26 = function peg$c26() {
    return "\r";
  },
      peg$c27 = "t",
      peg$c28 = peg$literalExpectation("t", false),
      peg$c29 = function peg$c29() {
    return "\t";
  },
      peg$c30 = "v",
      peg$c31 = peg$literalExpectation("v", false),
      peg$c32 = function peg$c32() {
    return "\v";
  },
      peg$c33 = "u",
      peg$c34 = peg$literalExpectation("u", false),
      peg$c35 = function peg$c35(digits) {
    return String.fromCharCode(parseInt(digits, 16));
  },
      peg$c36 = function peg$c36(Sequence) {
    return Sequence;
  },
      peg$c37 = /^[ -!#-[\]-\u10FFFF]/,
      peg$c38 = peg$classExpectation([[" ", "!"], ["#", "["], ["]", "\u10FF"], "F", "F"], false, false),
      peg$c39 = peg$otherExpectation("string"),
      peg$c40 = function peg$c40(chars) {
    return chars.join("");
  },
      peg$c41 = peg$otherExpectation("atom"),
      peg$c42 = /^[0-9a-zA-Z.+_&()%$#@!?,']/,
      peg$c43 = peg$classExpectation([["0", "9"], ["a", "z"], ["A", "Z"], ".", "+", "_", "&", "(", ")", "%", "$", "#", "@", "!", "?", ",", "'"], false, false),
      peg$c44 = function peg$c44(text) {
    return text.join('');
  },
      peg$c45 = peg$otherExpectation("label"),
      peg$c46 = ":",
      peg$c47 = peg$literalExpectation(":", false),
      peg$c48 = ";",
      peg$c49 = peg$literalExpectation(";", false),
      peg$c50 = function peg$c50(text, value) {
    return { text: text, value: value };
  },
      peg$c51 = "{",
      peg$c52 = peg$literalExpectation("{", false),
      peg$c53 = "}",
      peg$c54 = peg$literalExpectation("}", false),
      peg$c55 = function peg$c55(descitems) {
    return descitems;
  },
      peg$c56 = function peg$c56(ldesc, arrow, rdesc, label, tail) {
    var base = { kind: arrow, to: label };

    if (tail && tail !== []) {
      base.se = tail;
    }
    if (ldesc) {
      base.ldesc = ldesc;
    }
    if (rdesc) {
      base.rdesc = rdesc;
    }

    return base;
  },
      peg$c57 = function peg$c57(label, se) {
    var base = { from: label };
    if (se && se !== []) {
      base.se = se;
    }
    return base;
  },
      peg$c58 = peg$otherExpectation("whitespace"),
      peg$c59 = /^[ \t\n\r\x0B]/,
      peg$c60 = peg$classExpectation([" ", "\t", "\n", "\r", "\x0B"], false, false),
      peg$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$parseExpression() {
    var s0, s1, s2, s3;

    s0 = peg$currPos;
    s1 = peg$parseWhitespace();
    if (s1 !== peg$FAILED) {
      s2 = peg$parseExpList();
      if (s2 !== peg$FAILED) {
        s3 = peg$parseWhitespace();
        if (s3 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c0(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

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

    peg$silentFails++;
    if (input.substr(peg$currPos, 2) === peg$c2) {
      s0 = peg$c2;
      peg$currPos += 2;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c3);
      }
    }
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c1);
      }
    }

    return s0;
  }

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

    peg$silentFails++;
    if (input.substr(peg$currPos, 3) === peg$c5) {
      s0 = peg$c5;
      peg$currPos += 3;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c6);
      }
    }
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c4);
      }
    }

    return s0;
  }

  function peg$parseArrow() {
    var s0;

    s0 = peg$parseForwardArrow();
    if (s0 === peg$FAILED) {
      s0 = peg$parseTwoWayArrow();
    }

    return s0;
  }

  function peg$parseHexDigit() {
    var s0;

    if (peg$c7.test(input.charAt(peg$currPos))) {
      s0 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c8);
      }
    }

    return s0;
  }

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

    s0 = peg$parseUnescaped();
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      s1 = peg$parseEscape();
      if (s1 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 34) {
          s2 = peg$c9;
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) {
            peg$fail(peg$c10);
          }
        }
        if (s2 === peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 92) {
            s2 = peg$c11;
            peg$currPos++;
          } else {
            s2 = peg$FAILED;
            if (peg$silentFails === 0) {
              peg$fail(peg$c12);
            }
          }
          if (s2 === peg$FAILED) {
            if (input.charCodeAt(peg$currPos) === 47) {
              s2 = peg$c13;
              peg$currPos++;
            } else {
              s2 = peg$FAILED;
              if (peg$silentFails === 0) {
                peg$fail(peg$c14);
              }
            }
            if (s2 === peg$FAILED) {
              s2 = peg$currPos;
              if (input.charCodeAt(peg$currPos) === 98) {
                s3 = peg$c15;
                peg$currPos++;
              } else {
                s3 = peg$FAILED;
                if (peg$silentFails === 0) {
                  peg$fail(peg$c16);
                }
              }
              if (s3 !== peg$FAILED) {
                peg$savedPos = s2;
                s3 = peg$c17();
              }
              s2 = s3;
              if (s2 === peg$FAILED) {
                s2 = peg$currPos;
                if (input.charCodeAt(peg$currPos) === 102) {
                  s3 = peg$c18;
                  peg$currPos++;
                } else {
                  s3 = peg$FAILED;
                  if (peg$silentFails === 0) {
                    peg$fail(peg$c19);
                  }
                }
                if (s3 !== peg$FAILED) {
                  peg$savedPos = s2;
                  s3 = peg$c20();
                }
                s2 = s3;
                if (s2 === peg$FAILED) {
                  s2 = peg$currPos;
                  if (input.charCodeAt(peg$currPos) === 110) {
                    s3 = peg$c21;
                    peg$currPos++;
                  } else {
                    s3 = peg$FAILED;
                    if (peg$silentFails === 0) {
                      peg$fail(peg$c22);
                    }
                  }
                  if (s3 !== peg$FAILED) {
                    peg$savedPos = s2;
                    s3 = peg$c23();
                  }
                  s2 = s3;
                  if (s2 === peg$FAILED) {
                    s2 = peg$currPos;
                    if (input.charCodeAt(peg$currPos) === 114) {
                      s3 = peg$c24;
                      peg$currPos++;
                    } else {
                      s3 = peg$FAILED;
                      if (peg$silentFails === 0) {
                        peg$fail(peg$c25);
                      }
                    }
                    if (s3 !== peg$FAILED) {
                      peg$savedPos = s2;
                      s3 = peg$c26();
                    }
                    s2 = s3;
                    if (s2 === peg$FAILED) {
                      s2 = peg$currPos;
                      if (input.charCodeAt(peg$currPos) === 116) {
                        s3 = peg$c27;
                        peg$currPos++;
                      } else {
                        s3 = peg$FAILED;
                        if (peg$silentFails === 0) {
                          peg$fail(peg$c28);
                        }
                      }
                      if (s3 !== peg$FAILED) {
                        peg$savedPos = s2;
                        s3 = peg$c29();
                      }
                      s2 = s3;
                      if (s2 === peg$FAILED) {
                        s2 = peg$currPos;
                        if (input.charCodeAt(peg$currPos) === 118) {
                          s3 = peg$c30;
                          peg$currPos++;
                        } else {
                          s3 = peg$FAILED;
                          if (peg$silentFails === 0) {
                            peg$fail(peg$c31);
                          }
                        }
                        if (s3 !== peg$FAILED) {
                          peg$savedPos = s2;
                          s3 = peg$c32();
                        }
                        s2 = s3;
                        if (s2 === peg$FAILED) {
                          s2 = peg$currPos;
                          if (input.charCodeAt(peg$currPos) === 117) {
                            s3 = peg$c33;
                            peg$currPos++;
                          } else {
                            s3 = peg$FAILED;
                            if (peg$silentFails === 0) {
                              peg$fail(peg$c34);
                            }
                          }
                          if (s3 !== peg$FAILED) {
                            s4 = peg$currPos;
                            s5 = peg$currPos;
                            s6 = peg$parseHexDigit();
                            if (s6 !== peg$FAILED) {
                              s7 = peg$parseHexDigit();
                              if (s7 !== peg$FAILED) {
                                s8 = peg$parseHexDigit();
                                if (s8 !== peg$FAILED) {
                                  s9 = peg$parseHexDigit();
                                  if (s9 !== peg$FAILED) {
                                    s6 = [s6, s7, s8, s9];
                                    s5 = s6;
                                  } else {
                                    peg$currPos = s5;
                                    s5 = peg$FAILED;
                                  }
                                } else {
                                  peg$currPos = s5;
                                  s5 = peg$FAILED;
                                }
                              } else {
                                peg$currPos = s5;
                                s5 = peg$FAILED;
                              }
                            } else {
                              peg$currPos = s5;
                              s5 = peg$FAILED;
                            }
                            if (s5 !== peg$FAILED) {
                              s4 = input.substring(s4, peg$currPos);
                            } else {
                              s4 = s5;
                            }
                            if (s4 !== peg$FAILED) {
                              peg$savedPos = s2;
                              s3 = peg$c35(s4);
                              s2 = s3;
                            } else {
                              peg$currPos = s2;
                              s2 = peg$FAILED;
                            }
                          } else {
                            peg$currPos = s2;
                            s2 = peg$FAILED;
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c36(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    }

    return s0;
  }

  function peg$parseEscape() {
    var s0;

    if (input.charCodeAt(peg$currPos) === 92) {
      s0 = peg$c11;
      peg$currPos++;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c12);
      }
    }

    return s0;
  }

  function peg$parseQuoteMark() {
    var s0;

    if (input.charCodeAt(peg$currPos) === 34) {
      s0 = peg$c9;
      peg$currPos++;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c10);
      }
    }

    return s0;
  }

  function peg$parseUnescaped() {
    var s0;

    if (peg$c37.test(input.charAt(peg$currPos))) {
      s0 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s0 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c38);
      }
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = peg$currPos;
    s1 = peg$parseQuoteMark();
    if (s1 !== peg$FAILED) {
      s2 = [];
      s3 = peg$parseChar();
      while (s3 !== peg$FAILED) {
        s2.push(s3);
        s3 = peg$parseChar();
      }
      if (s2 !== peg$FAILED) {
        s3 = peg$parseQuoteMark();
        if (s3 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c40(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c39);
      }
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = peg$currPos;
    s1 = [];
    if (peg$c42.test(input.charAt(peg$currPos))) {
      s2 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s2 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c43);
      }
    }
    if (s2 !== peg$FAILED) {
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        if (peg$c42.test(input.charAt(peg$currPos))) {
          s2 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) {
            peg$fail(peg$c43);
          }
        }
      }
    } else {
      s1 = peg$FAILED;
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$c44(s1);
    }
    s0 = s1;
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c41);
      }
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = peg$parseAtom();
    if (s0 === peg$FAILED) {
      s0 = peg$parseString();
    }
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c45);
      }
    }

    return s0;
  }

  function peg$parseDescValue() {
    var s0;

    s0 = peg$parseLabel();

    return s0;
  }

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

    s0 = peg$currPos;
    s1 = peg$parseLabel();
    if (s1 !== peg$FAILED) {
      if (input.charCodeAt(peg$currPos) === 58) {
        s2 = peg$c46;
        peg$currPos++;
      } else {
        s2 = peg$FAILED;
        if (peg$silentFails === 0) {
          peg$fail(peg$c47);
        }
      }
      if (s2 !== peg$FAILED) {
        s3 = peg$parseDescValue();
        if (s3 !== peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 59) {
            s4 = peg$c48;
            peg$currPos++;
          } else {
            s4 = peg$FAILED;
            if (peg$silentFails === 0) {
              peg$fail(peg$c49);
            }
          }
          if (s4 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c50(s1, s3);
            s0 = s1;
          } else {
            peg$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;
    }

    return s0;
  }

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

    s0 = [];
    s1 = peg$parseDescItem();
    if (s1 !== peg$FAILED) {
      while (s1 !== peg$FAILED) {
        s0.push(s1);
        s1 = peg$parseDescItem();
      }
    } else {
      s0 = peg$FAILED;
    }

    return s0;
  }

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

    s0 = peg$currPos;
    if (input.charCodeAt(peg$currPos) === 123) {
      s1 = peg$c51;
      peg$currPos++;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c52);
      }
    }
    if (s1 !== peg$FAILED) {
      s2 = peg$parseDescItems();
      if (s2 === peg$FAILED) {
        s2 = null;
      }
      if (s2 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 125) {
          s3 = peg$c53;
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) {
            peg$fail(peg$c54);
          }
        }
        if (s3 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c55(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$parseSubexp() {
    var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;

    s0 = peg$currPos;
    s1 = peg$parseWhitespace();
    if (s1 !== peg$FAILED) {
      s2 = peg$parseArrowDesc();
      if (s2 === peg$FAILED) {
        s2 = null;
      }
      if (s2 !== peg$FAILED) {
        s3 = peg$parseWhitespace();
        if (s3 !== peg$FAILED) {
          s4 = peg$parseArrow();
          if (s4 !== peg$FAILED) {
            s5 = peg$parseWhitespace();
            if (s5 !== peg$FAILED) {
              s6 = peg$parseArrowDesc();
              if (s6 === peg$FAILED) {
                s6 = null;
              }
              if (s6 !== peg$FAILED) {
                s7 = peg$parseWhitespace();
                if (s7 !== peg$FAILED) {
                  s8 = peg$parseLabel();
                  if (s8 !== peg$FAILED) {
                    s9 = peg$parseWhitespace();
                    if (s9 !== peg$FAILED) {
                      s10 = peg$parseSubexp();
                      if (s10 === peg$FAILED) {
                        s10 = null;
                      }
                      if (s10 !== peg$FAILED) {
                        peg$savedPos = s0;
                        s1 = peg$c56(s2, s4, s6, s8, s10);
                        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;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

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

    s0 = peg$currPos;
    s1 = peg$parseLabel();
    if (s1 !== peg$FAILED) {
      s2 = peg$parseSubexp();
      if (s2 !== peg$FAILED) {
        s3 = peg$parseWhitespace();
        if (s3 !== peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 59) {
            s4 = peg$c48;
            peg$currPos++;
          } else {
            s4 = peg$FAILED;
            if (peg$silentFails === 0) {
              peg$fail(peg$c49);
            }
          }
          if (s4 !== peg$FAILED) {
            s5 = peg$parseWhitespace();
            if (s5 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c57(s1, s2);
              s0 = s1;
            } else {
              peg$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$parseExpList() {
    var s0, s1;

    s0 = [];
    s1 = peg$parseExp();
    while (s1 !== peg$FAILED) {
      s0.push(s1);
      s1 = peg$parseExp();
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = [];
    if (peg$c59.test(input.charAt(peg$currPos))) {
      s1 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c60);
      }
    }
    while (s1 !== peg$FAILED) {
      s0.push(s1);
      if (peg$c59.test(input.charAt(peg$currPos))) {
        s1 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) {
          peg$fail(peg$c60);
        }
      }
    }
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) {
        peg$fail(peg$c58);
      }
    }

    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
};

},{}],2:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var rand_select = function rand_select(options) {
    var probability_property = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'probability';


    if (!Array.isArray(options)) {
        throw new TypeError('options must be a non-empty array of objects');
    }
    if (!(_typeof(options[0]) === 'object')) {
        throw new TypeError('options must be a non-empty array of objects');
    }

    var frand = function frand(cap) {
        return Math.random() * cap;
    },
        prob_sum = options.reduce(function (acc, val) {
        return acc + val[probability_property];
    }, 0),
        rnd = frand(prob_sum);

    var cursor = 0,
        cursor_sum = 0;

    while ((cursor_sum += options[cursor++][probability_property]) <= rnd) {}
    return options[cursor - 1];
};

var seq = function seq(n) {
    return new Array(n).fill(true).map(function (_, i) {
        return i;
    });
};

var histograph = function histograph(a) {
    return a.sort().reduce(function (m, v) {
        return m.set(v, m.has(v) ? m.get(v) + 1 : 1), m;
    }, new Map());
};

var sample_select = function sample_select(n, options, probability_property) {
    return seq(n).map(function (i) {
        return rand_select(options, probability_property);
    });
};

var histo_key = function histo_key(n, options, probability_property, extract) {
    return histograph(sample_select(n, options, probability_property).map(function (s) {
        return s[extract];
    }));
};

exports.seq = seq;
exports.histograph = histograph;
exports.histo_key = histo_key;
exports.rand_select = rand_select;
exports.sample_select = sample_select;

},{}],3:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
            value: true
});

var viz = function viz(jssm) {

            var l_states = jssm.states();

            var node_of = function node_of(state) {
                        return 'n' + l_states.indexOf(state);
            },
                vc = function vc(col) {
                        return jssm._viz_colors[col] || '';
            };

            var nodes = l_states.map(function (s) {

                        var this_state = jssm.state_for(s),
                            terminal = jssm.state_is_terminal(s),
                            final = jssm.state_is_final(s),
                            complete = jssm.state_is_complete(s),
                            features = [['label', s], ['peripheries', complete ? 2 : 1], ['fillcolor', final ? vc('fill_final') : complete ? vc('fill_complete') : terminal ? vc('fill_terminal') : '']].filter(function (r) {
                                    return r[1];
                        }).map(function (r) {
                                    return r[0] + '="' + r[1] + '"';
                        }).join(' ');
                        return node_of(s) + ' [' + features + '];';
            }).join(' ');

            var strike = [];
            var edges = jssm.states().map(function (s) {
                        return jssm.list_exits(s).map(function (ex) {

                                    if (strike.find(function (row) {
                                                return row[0] === s && row[1] == ex;
                                    })) {
                                                return ''; // already did the pair
                                    }

                                    var edge = jssm.list_transitions(s, ex),
                                        pair = jssm.list_transitions(ex, s),
                                        double = pair && s !== ex,
                                        head_state = jssm.state_for(s),
                                        tail_state = jssm.state_for(ex),


                                    //          label        = edge  ? ([edge.name?`${(edge.name:any)}`:undefined,`${(edge.probability:any)}`]
                                    //                                 .filter(not_undef => !!not_undef)
                                    //                                   .join('\n') || undefined
                                    //                                  ) : undefined,

                                    if_obj_field = function if_obj_field(obj, field) {
                                                return obj ? obj[field] || '' : '';
                                    },
                                        h_final = jssm.state_is_final(s),
                                        h_complete = jssm.state_is_complete(s),
                                        h_terminal = jssm.state_is_terminal(s),
                                        t_final = jssm.state_is_final(ex),
                                        t_complete = jssm.state_is_complete(ex),
                                        t_terminal = jssm.state_is_terminal(ex),
                                        lineColor = function lineColor(final, complete, terminal) {
                                                var _solo_1_2 = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : '_solo';

                                                return final ? vc('line_final' + _solo_1_2) : complete ? vc('line_complete' + _solo_1_2) : terminal ? vc('line_terminal' + _solo_1_2) : vc('normal_line' + _solo_1_2);
                                    },
                                        textColor = function textColor(final, complete, terminal) {
                                                var _solo_1_2 = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : '_solo';

                                                return final ? vc('text_final' + _solo_1_2) : complete ? vc('text_complete' + _solo_1_2) : terminal ? vc('text_terminal' + _solo_1_2) : '';
                                    },
                                        headColor = textColor(h_final, h_complete, h_terminal, double ? '_1' : '_solo'),
                                        tailColor = textColor(t_final, t_complete, t_terminal, double ? '_2' : '_solo'),
                                        labelInline = [
                                    //                           [edge, 'name',        'label',     true],
                                    [pair, 'probability', 'headlabel', 'name', 'action', double, headColor], [edge, 'probability', 'taillabel', 'name', 'action', true, tailColor]].map(function (r) {
                                                return { which: r[2], whether: r[5] ? [if_obj_field(r[0], r[5]), if_obj_field(r[0], r[1]), if_obj_field(r[0], r[3])].filter(function (q) {
                                                                        return q;
                                                            }).join('<br/>') || '' : '', color: r[6] };
                                    }).filter(function (present) {
                                                return present.whether;
                                    }).map(function (r) {
                                                return r.which + '=' + (r.color ? '<<font color="' + r.color + '">' + r.whether + '</font>>' : '"' + r.whether + '"') + ';';
                                    }).join(' '),
                                        tc1 = lineColor(t_final, t_complete, t_terminal, '_1'),
                                        tc2 = lineColor(h_final, h_complete, h_terminal, '_2'),
                                        tcd = lineColor(t_final, t_complete, t_terminal, '_solo'),
                                        edgeInline = edge ? double ? 'dir=both;color="' + tc1 + ':' + tc2 + '"' : 'color="' + tcd + '"' : '';

                                    if (pair) {
                                                strike.push([ex, s]);
                                    }

                                    return node_of(s) + '->' + node_of(ex) + ' [' + labelInline + edgeInline + '];';
                        }).join(' ');
            }).join(' ');

            return 'digraph G {\n  fontname="helvetica neue";\n  style=filled;\n  bgcolor=lightgrey;\n  node [fontsize=14; shape=box; style=filled; fillcolor=white; fontname="helvetica neue"];\n  edge [fontsize=6;fontname="helvetica neue"];\n\n  ' + nodes + '\n\n  ' + edges + '\n}';
};

exports.viz = viz;

},{}],"jssm":[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.histograph = exports.rand_select = exports.seq = exports.parse = exports.machine = exports.version = undefined;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _jssmUtil = require('./jssm-util.js');

var _jssmViz = require('./jssm-viz.js');

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var version = '2.4.0'; // replaced from package.js in build


// whargarbl lots of these return arrays could/should be sets

var parse = require('./jssm-dot.js').parse;

var machine = function () {

  // whargarbl this badly needs to be broken up, monolith master
  function machine(_ref) {
    var _this = this;

    var initial_state = _ref.initial_state,
        _ref$complete = _ref.complete,
        complete = _ref$complete === undefined ? [] : _ref$complete,
        transitions = _ref.transitions;

    _classCallCheck(this, machine);

    this.set_viz_colors();

    this._state = initial_state;
    this._states = new Map();
    this._edges = [];
    this._edge_map = new Map();
    this._named_transitions = new Map();
    this._actions = new Map();
    this._reverse_actions = new Map();
    this._reverse_action_targets = new Map(); // todo

    transitions.map(function (tr) {
      // whargarbl burn out any

      if (tr.from === undefined) {
        throw new Error('transition must define \'from\': ' + JSON.stringify(tr));
      }
      if (tr.to === undefined) {
        throw new Error('transition must define \'to\': ' + JSON.stringify(tr));
      }

      // get the cursors.  what a mess
      var cursor_from = _this._states.get(tr.from);
      if (cursor_from === undefined) {
        _this._new_state({ name: tr.from, from: [], to: [], complete: complete.includes(tr.from) });
        cursor_from = _this._states.get(tr.from);
      }

      var cursor_to = _this._states.get(tr.to);
      if (cursor_to === undefined) {
        _this._new_state({ name: tr.to, from: [], to: [], complete: complete.includes(tr.to) });
        cursor_to = _this._states.get(tr.to);
      }

      // guard against existing connections being re-added
      if (cursor_from.to.includes(tr.to)) {
        throw new Error('already has ' + tr.from + ' to ' + tr.to);
      } else {
        cursor_from.to.push(tr.to);
      }

      if (cursor_to.from.includes(tr.from)) {
        throw new Error('already has ' + tr.to + ' from ' + tr.from);
      } else {
        cursor_to.from.push(tr.from);
      }

      // add the edge; note its id
      _this._edges.push(tr);
      var thisEdgeId = _this._edges.length - 1;

      // guard against repeating a transition name
      if (tr.name) {
        if (_this._named_transitions.has(tr.name)) {
          throw new Error('named transition "' + tr.name + '" already created');
        } else {
          _this._named_transitions.set(tr.name, thisEdgeId);
        }
      }

      // set up the mapping, so that edges can be looked up by endpoint pairs
      var from_mapping = _this._edge_map.get(tr.from);
      if (from_mapping === undefined) {
        _this._edge_map.set(tr.from, new Map());
        from_mapping = _this._edge_map.get(tr.from); // whargarbl burn out uses of any
      }

      var to_mapping = from_mapping.get(tr.to);
      if (to_mapping) {
        throw new Error('from -> to already exists ' + tr.from + ' ' + tr.to);
      } else {
        from_mapping.set(tr.to, thisEdgeId);
      }

      // set up the action mapping, so that actions can be looked up by origin
      if (tr.action) {

        // forward mapping first by action name
        if (!_this._actions.has(tr.action)) {
          _this._actions.set(tr.action, new Map());
        }

        var actionMap = _this._actions.get(tr.action);
        if (actionMap) {
          if (actionMap.has(tr.from)) {
            throw new Error('action ' + tr.action + ' already attached to origin ' + tr.from);
          } else {
            actionMap.set(tr.from, thisEdgeId);
          }
        } else {
          throw new Error('should be impossible, satisfying type checker that doesn\'t know .set precedes .get.  severe error?');
        }

        // reverse mapping first by state origin name
        if (!_this._reverse_actions.has(tr.from)) {
          _this._reverse_actions.set(tr.from, new Map());
        }

        var rActionMap = _this._reverse_actions.get(tr.from);
        if (rActionMap) {
          if (rActionMap.has(tr.action)) {
            throw new Error('r-action ' + tr.from + ' already attached to action ' + tr.action);
          } else {
            rActionMap.set(tr.action, thisEdgeId);
          }
        } else {
          throw new Error('should be impossible, satisfying type checker that doesn\'t know .set precedes .get again.  severe error?');
        }

        // reverse mapping first by state target name
        if (!_this._reverse_action_targets.has(tr.to)) {
          _this._reverse_action_targets.set(tr.to, new Map());
        }

        /* todo comeback
           fundamental problem is roActionMap needs to be a multimap
                const roActionMap = this._reverse_action_targets.get(tr.to);  // wasteful - already did has - refactor
                if (roActionMap) {
                  if (roActionMap.has(tr.action)) { throw new Error(`ro-action ${tr.to} already attached to action ${tr.action}`); }
                  else {
                    roActionMap.set(tr.action, thisEdgeId);
                  }
                } else {
                  throw new Error('should be impossible, satisfying type checker that doesn\'t know .set precedes .get yet again.  severe error?')
                }
        */
      }
    });
  }

  _createClass(machine, [{
    key: '_new_state',
    value: function _new_state(state_config) {
      // whargarbl get that state_config any under control
      if (this._states.has(state_config.name)) {
        throw new Error('state ' + state_config.name + ' already exists');
      }
      this._states.set(state_config.name, state_config);
      return state_config.name;
    }
  }, {
    key: 'state',
    value: function state() {
      return this._state;
    }
  }, {
    key: 'is_changing',
    value: function is_changing() {
      return true; // todo whargarbl
    }
  }, {
    key: 'state_is_final',
    value: function state_is_final(whichState) {
      return this.state_is_terminal(whichState) && this.state_is_complete(whichState);
    }
  }, {
    key: 'is_final',
    value: function is_final() {
      return !this.is_changing() && this.state_is_final(this.state());
    }
  }, {
    key: 'machine_state',
    value: function machine_state() {

      return {
        internal_state_impl_version: 1,

        actions: this._actions,
        edge_map: this._edge_map,
        edges: this._edges,
        named_transitions: this._named_transitions,
        reverse_actions: this._reverse_actions,
        //    reverse_action_targets : this._reverse_action_targets,
        state: this._state,
        states: this._states
      };
    }
  }, {
    key: 'load_machine_state',
    value: function load_machine_state() {
      return false; // todo whargarbl
    }
  }, {
    key: 'states',
    value: function states() {
      return [].concat(_toConsumableArray(this._states.keys()));
    }
  }, {
    key: 'state_for',
    value: function state_for(whichState) {
      var state = this._states.get(whichState);
      if (state) {
        return state;
      } else {
        throw new Error('no such state ' + JSON.stringify(state));
      }
    }
  }, {
    key: 'list_transitions',
    value: function list_transitions() {
      return this._edges;
    }
  }, {
    key: 'list_named_transitions',
    value: function list_named_transitions() {
      return this._named_transitions;
    }
  }, {
    key: 'list_actions',
    value: function list_actions() {
      return [].concat(_toConsumableArray(this._actions.keys()));
    }
  }, {
    key: 'get_transition_by_id',
    value: function get_transition_by_id(from, to) {
      return this._edge_map.has(from) ? this._edge_map.get(from).get(to) : undefined;
    }
  }, {
    key: 'lookup_transition_for',
    value: function lookup_transition_for(from, to) {
      var id = this.get_transition_by_id(from, to);
      return id === undefined ? undefined : this._edges[id];
    }
  }, {
    key: 'list_transitions',
    value: function list_transitions() {
      var whichState = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.state();

      return { entrances: this.list_entrances(whichState), exits: this.list_exits(whichState) };
    }
  }, {
    key: 'list_entrances',
    value: function list_entrances() {
      var whichState = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.state();

      return (this._states.get(whichState) || {}).from; // return undefined if it doesn't exist by asking for a member of an empty obj
    }
  }, {
    key: 'list_exits',
    value: function list_exits() {
      var whichState = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.state();

      return (this._states.get(whichState) || {}).to;
    }
  }, {
    key: 'probable_exits_for',
    value: function probable_exits_for(whichState) {
      var _this2 = this;

      var wstate_to = (this._states.get(whichState) || { to: [] }).to,
          wtf = wstate_to.map(function (ws) {
        return _this2.lookup_transition_for(_this2.state(), ws);
      }).filter(function (defined) {
        return defined;
      });

      return wtf || []; // :any because .transition_for can return `undefined`, which doesn't match this return spec
    }
  }, {
    key: 'probabilistic_transition',
    value: function probabilistic_transition() {
      var selected = (0, _jssmUtil.rand_select)(this.probable_exits_for(this.state()));
      return this.transition(selected.to);
    }
  }, {
    key: 'probabilistic_walk',
    value: function probabilistic_walk(n) {
      var _this3 = this;

      return (0, _jssmUtil.seq)(n - 1).map(function (i) {
        var state_was = _this3.state();
        _this3.probabilistic_transition();
        return state_was;
      }).concat([this.state()]);
    }
  }, {
    key: 'probabilistic_histo_walk',
    value: function probabilistic_histo_walk(n) {
      return (0, _jssmUtil.histograph)(this.probabilistic_walk(n));
    }
  }, {
    key: 'actions',
    value: function actions() {
      var whichState = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.state();

      var wstate = this._reverse_actions.get(whichState);
      if (wstate) {
        return [].concat(_toConsumableArray(wstate.keys()));
      } else {
        throw new Error('No such state ' + JSON.stringify(whichState));
      }
    }
  }, {
    key: 'list_states_having_action',
    value: function list_states_having_action(whichState) {
      var wstate = this._actions.get(whichState);
      if (wstate) {
        return [].concat(_toConsumableArray(wstate.keys()));
      } else {
        throw new Error('No such state ' + JSON.stringify(whichState));
      }
    }

    // comeback
    /*
      list_entrance_actions(whichState : mNT = this.state() ) : Array<mNT> {
        return [... (this._reverse_action_targets.get(whichState) || new Map()).values()] // wasteful
               .map( (edgeId:any) => (this._edges[edgeId] : any)) // whargarbl burn out any
               .filter( (o:any) => o.to === whichState)
               .map( filtered => filtered.from );
      }
    */

  }, {
    key: 'list_exit_actions',
    value: function list_exit_actions() {
      var _this4 = this;

      var whichState = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.state();

      return [].concat(_toConsumableArray((this._reverse_actions.get(whichState) || new Map()).values())) // wasteful, should throw instead
      .map(function (edgeId) {
        return _this4._edges[edgeId];
      }).filter(function (o) {
        return o.from === whichState;
      }).map(function (filtered) {
        return filtered.action;
      });
    }
  }, {
    key: 'probable_action_exits',
    value: function probable_action_exits() {
      var _this5 = this;

      var whichState = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.state();

      return [].concat(_toConsumableArray((this._reverse_actions.get(whichState) || new Map()).values())) // wasteful, should throw instead
      .map(function (edgeId) {
        return _this5._edges[edgeId];
      }).filter(function (o) {
        return o.from === whichState;
      }).map(function (filtered) {
        return { action: filtered.action,
          probability: filtered.probability };
      });
    }
  }, {
    key: 'is_unenterable',
    value: function is_unenterable(whichState) {
      return this.list_entrances(whichState).length === 0;
    }
  }, {
    key: 'has_unenterables',
    value: function has_unenterables() {
      return this.states.some(this.is_unenterable);
    }
  }, {
    key: 'is_terminal',
    value: function is_terminal() {
      return this.state_is_terminal(this.state());
    }
  }, {
    key: 'state_is_terminal',
    value: function state_is_terminal(whichState) {
      return this.list_exits(whichState).length === 0;
    }
  }, {
    key: 'has_terminals',
    value: function has_terminals() {
      return this.states.some(this.state_is_terminal);
    }
  }, {
    key: 'is_complete',
    value: function is_complete() {
      return this.state_is_complete(this.state());
    }
  }, {
    key: 'state_is_complete',
    value: function state_is_complete(whichState) {
      var wstate = this._states.get(whichState);
      if (wstate) {
        return wstate.complete;
      } else {
        throw new Error('No such state ' + JSON.stringify(whichState));
      }
    }
  }, {
    key: 'has_completes',
    value: function has_completes() {
      return this.states.some(this.state_is_complete);
    }
  }, {
    key: 'action',
    value: function action(name, newData) {
      // todo whargarbl implement hooks
      // todo whargarbl implement data stuff
      // todo major incomplete whargarbl comeback
      if (this.valid_action(name, newData)) {
        var edge = this.current_action_edge_for(name);
        if (edge) {
          this._state = edge.to;
        } else {
          throw new Error('Should be impossible - valid_action true, no edge in current_action_edge_for, in action(' + JSON.stringify(name) + '...)');
        }
        return true;
      } else {
        return false;
      }
    }
  }, {
    key: 'transition',
    value: function transition(newState, newData) {
      // todo whargarbl implement hooks
      // todo whargarbl implement data stuff
      // todo major incomplete whargarbl comeback
      if (this.valid_transition(newState, newData)) {
        this._state = newState;
        return true;
      } else {
        return false;
      }
    }

    // can leave machine in inconsistent state.  generally do not use

  }, {
    key: 'force_transition',
    value: function force_transition(newState, newData) {
      // todo whargarbl implement hooks
      // todo whargarbl implement data stuff
      // todo major incomplete whargarbl comeback
      if (this.valid_force_transition(newState, newData)) {
        this._state = newState;
        return true;
      } else {
        return false;
      }
    }
  }, {
    key: 'current_action_for',
    value: function current_action_for(action) {
      var action_base = this._actions.get(action);
      return action_base ? action_base.get(this.state()) : undefined;
    }
  }, {
    key: 'current_action_edge_for',
    value: function current_action_edge_for(action) {
      var idx = this.current_action_for(action);
      return idx !== undefined ? this._edges[idx] : undefined;
    }
  }, {
    key: 'valid_action',
    value: function valid_action(action, newData) {
      // todo whargarbl implement hooks
      // todo whargarbl implement data stuff
      // todo major incomplete whargarbl comeback
      return this.current_action_for(action) !== undefined;
    }
  }, {
    key: 'valid_transition',
    value: function valid_transition(newState, newData) {
      // todo whargarbl implement hooks
      // todo whargarbl implement data stuff
      // todo major incomplete whargarbl comeback
      return this.lookup_transition_for(this.state(), newState) !== undefined;
    }
  }, {
    key: 'valid_force_transition',
    value: function valid_force_transition(newState, newData) {
      return false; // major todo whargarbl
    }
  }, {
    key: 'viz',
    value: function viz() {
      return (0, _jssmViz.viz)(this);
    }
  }, {
    key: 'set_viz_colors',
    value: function set_viz_colors() {

      this._viz_colors = {

        'fill_final': '#eeeeff',
        'fill_terminal': '#ffeeee',
        'fill_complete': '#eeffee',

        'normal_line_1': '#999999',
        'normal_line_2': '#888888',
        'normal_line_solo': '#888888',

        'line_final_1': '#8888bb',
        'line_final_2': '#7777aa',
        'line_final_solo': '#7777aa',

        'line_terminal_1': '#bb8888',
        'line_terminal_2': '#aa7777',
        'line_terminal_solo': '#aa7777',

        'line_complete_1': '#88bb88',
        'line_complete_2': '#77aa77',
        'line_complete_solo': '#77aa77',

        'text_final_1': '#000088',
        'text_final_2': '#000088',
        'text_final_solo': '#000088',

        'text_terminal_1': '#880000',
        'text_terminal_2': '#880000',
        'text_terminal_solo': '#880000',

        'text_complete_1': '#007700',
        'text_complete_2': '#007700',
        'text_complete_solo': '#007700'

      };
    }
  }]);

  return machine;
}();

exports.version = version;
exports.machine = machine;
exports.parse = parse;
exports.seq = _jssmUtil.seq;
exports.rand_select = _jssmUtil.rand_select;
exports.histograph = _jssmUtil.histograph;

},{"./jssm-dot.js":1,"./jssm-util.js":2,"./jssm-viz.js":3}]},{},[]);