diff --git a/dist/jssm.es5.cjs.js b/dist/jssm.es5.cjs.js
index bbbd1927..dd7aa8c7 100644
--- a/dist/jssm.es5.cjs.js
+++ b/dist/jssm.es5.cjs.js
@@ -2837,7 +2837,7 @@ Object.defineProperty(exports, "__esModule", {
 
 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 weighted_rand_select = function weighted_rand_select(options) {
     var probability_property = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'probability';
 
 
@@ -2875,23 +2875,23 @@ var histograph = function histograph(a) {
     }, new Map());
 };
 
-var sample_select = function sample_select(n, options, probability_property) {
+var weighted_sample_select = function weighted_sample_select(n, options, probability_property) {
     return seq(n).map(function (i) {
-        return rand_select(options, probability_property);
+        return weighted_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) {
+var weighted_histo_key = function weighted_histo_key(n, options, probability_property, extract) {
+    return histograph(weighted_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;
+exports.weighted_histo_key = weighted_histo_key;
+exports.weighted_rand_select = weighted_rand_select;
+exports.weighted_sample_select = weighted_sample_select;
 
 },{}],3:[function(require,module,exports){
 'use strict';
@@ -3003,7 +3003,7 @@ exports.viz = viz;
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.histograph = exports.rand_select = exports.seq = exports.parse = exports.machine = exports.version = undefined;
+exports.histograph = exports.weighted_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; }; }();
 
@@ -3296,7 +3296,7 @@ var machine = function () {
   }, {
     key: 'probabilistic_transition',
     value: function probabilistic_transition() {
-      var selected = (0, _jssmUtil.rand_select)(this.probable_exits_for(this.state()));
+      var selected = (0, _jssmUtil.weighted_rand_select)(this.probable_exits_for(this.state()));
       return this.transition(selected.to);
     }
   }, {
@@ -3560,7 +3560,7 @@ exports.version = version;
 exports.machine = machine;
 exports.parse = parse;
 exports.seq = _jssmUtil.seq;
-exports.rand_select = _jssmUtil.rand_select;
+exports.weighted_rand_select = _jssmUtil.weighted_rand_select;
 exports.histograph = _jssmUtil.histograph;
 
 },{"./jssm-dot.js":1,"./jssm-util.js":2,"./jssm-viz.js":3}]},{},[]);
diff --git a/dist/jssm.es5.cjs.min.js b/dist/jssm.es5.cjs.min.js
index dadd1d59..041ff14d 100644
--- a/dist/jssm.es5.cjs.min.js
+++ b/dist/jssm.es5.cjs.min.js
@@ -1 +1 @@
-require=function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a="function"==typeof require&&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||e)},l,l.exports,e,t,n,r)}return n[o].exports}for(var i="function"==typeof require&&require,o=0;o<r.length;o++)s(r[o]);return s}({1:[function(require,module,exports){"use strict";function peg$SyntaxError(message,expected,found,location){this.message=message,this.expected=expected,this.found=found,this.location=location,this.name="SyntaxError","function"==typeof Error.captureStackTrace&&Error.captureStackTrace(this,peg$SyntaxError)}function peg$parse(input,options){function peg$literalExpectation(text,ignoreCase){return{type:"literal",text:text,ignoreCase:ignoreCase}}function peg$classExpectation(parts,inverted,ignoreCase){return{type:"class",parts:parts,inverted:inverted,ignoreCase:ignoreCase}}function peg$otherExpectation(description){return{type:"other",description:description}}function peg$computePosDetails(pos){var p,details=peg$posDetailsCache[pos];if(details)return details;for(p=pos-1;!peg$posDetailsCache[p];)p--;for(details={line:(details=peg$posDetailsCache[p]).line,column:details.column};p<pos;)10===input.charCodeAt(p)?(details.line++,details.column=1):details.column++,p++;return peg$posDetailsCache[pos]=details,details}function peg$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$fail(expected){peg$currPos<peg$maxFailPos||(peg$currPos>peg$maxFailPos&&(peg$maxFailPos=peg$currPos,peg$maxFailExpected=[]),peg$maxFailExpected.push(expected))}function peg$buildStructuredError(expected,found,location){return new peg$SyntaxError(peg$SyntaxError.buildMessage(expected,found),expected,found,location)}function peg$parseDocument(){var s0,s1,s2;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED&&(s2=peg$parseTermList())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c0(s2)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGvizShape(){var s0;return input.substr(peg$currPos,6)===peg$c1?(s0=peg$c1,peg$currPos+=6):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c2)),s0===peg$FAILED&&(input.substr(peg$currPos,9)===peg$c3?(s0=peg$c3,peg$currPos+=9):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c4)),s0===peg$FAILED&&(input.substr(peg$currPos,6)===peg$c5?(s0=peg$c5,peg$currPos+=6):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c6)))),s0}function peg$parseForwardArrow(){var s0;return peg$silentFails++,input.substr(peg$currPos,2)===peg$c8?(s0=peg$c8,peg$currPos+=2):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c9)),peg$silentFails--,s0===peg$FAILED&&(peg$FAILED,0===peg$silentFails&&peg$fail(peg$c7)),s0}function peg$parseTwoWayArrow(){var s0;return peg$silentFails++,input.substr(peg$currPos,3)===peg$c11?(s0=peg$c11,peg$currPos+=3):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c12)),peg$silentFails--,s0===peg$FAILED&&(peg$FAILED,0===peg$silentFails&&peg$fail(peg$c10)),s0}function peg$parseArrow(){var s0;return(s0=peg$parseForwardArrow())===peg$FAILED&&(s0=peg$parseTwoWayArrow()),s0}function peg$parseHexDigit(){var s0;return peg$c13.test(input.charAt(peg$currPos))?(s0=input.charAt(peg$currPos),peg$currPos++):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c14)),s0}function peg$parseChar(){var s0,s2,s3,s4,s5,s6,s7,s8,s9;return(s0=peg$parseUnescaped())===peg$FAILED&&(s0=peg$currPos,peg$parseEscape()!==peg$FAILED?(34===input.charCodeAt(peg$currPos)?(s2=peg$c15,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c16)),s2===peg$FAILED&&(92===input.charCodeAt(peg$currPos)?(s2=peg$c17,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c18)),s2===peg$FAILED&&(47===input.charCodeAt(peg$currPos)?(s2=peg$c19,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c20)),s2===peg$FAILED&&(s2=peg$currPos,98===input.charCodeAt(peg$currPos)?(s3=peg$c21,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c22)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c23()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,102===input.charCodeAt(peg$currPos)?(s3=peg$c24,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c25)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c26()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,110===input.charCodeAt(peg$currPos)?(s3=peg$c27,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c28)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c29()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,114===input.charCodeAt(peg$currPos)?(s3=peg$c30,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c31)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c32()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,116===input.charCodeAt(peg$currPos)?(s3=peg$c33,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c34)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c35()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,118===input.charCodeAt(peg$currPos)?(s3=peg$c36,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c37)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c38()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,117===input.charCodeAt(peg$currPos)?(s3=peg$c39,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c40)),s3!==peg$FAILED?(s4=peg$currPos,s5=peg$currPos,(s6=peg$parseHexDigit())!==peg$FAILED&&(s7=peg$parseHexDigit())!==peg$FAILED&&(s8=peg$parseHexDigit())!==peg$FAILED&&(s9=peg$parseHexDigit())!==peg$FAILED?s5=s6=[s6,s7,s8,s9]:(peg$currPos=s5,s5=peg$FAILED),(s4=s5!==peg$FAILED?input.substring(s4,peg$currPos):s5)!==peg$FAILED?(peg$savedPos=s2,s2=s3=peg$c41(s4)):(peg$currPos=s2,s2=peg$FAILED)):(peg$currPos=s2,s2=peg$FAILED)))))))))),s2!==peg$FAILED?(peg$savedPos=s0,s0=peg$c42(s2)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)),s0}function peg$parseEscape(){var s0;return 92===input.charCodeAt(peg$currPos)?(s0=peg$c17,peg$currPos++):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c18)),s0}function peg$parseQuoteMark(){var s0;return 34===input.charCodeAt(peg$currPos)?(s0=peg$c15,peg$currPos++):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c16)),s0}function peg$parseUnescaped(){var s0;return peg$c43.test(input.charAt(peg$currPos))?(s0=input.charAt(peg$currPos),peg$currPos++):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c44)),s0}function peg$parseWhitespace(){var s0,s1;for(peg$silentFails++,s0=[],peg$c46.test(input.charAt(peg$currPos))?(s1=input.charAt(peg$currPos),peg$currPos++):(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c47));s1!==peg$FAILED;)s0.push(s1),peg$c46.test(input.charAt(peg$currPos))?(s1=input.charAt(peg$currPos),peg$currPos++):(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c47));return peg$silentFails--,s0===peg$FAILED&&(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c45)),s0}function peg$parseString(){var s0,s2,s3;if(peg$silentFails++,s0=peg$currPos,peg$parseQuoteMark()!==peg$FAILED){for(s2=[],s3=peg$parseChar();s3!==peg$FAILED;)s2.push(s3),s3=peg$parseChar();s2!==peg$FAILED&&(s3=peg$parseQuoteMark())!==peg$FAILED?(peg$savedPos=s0,s0=peg$c49(s2)):(peg$currPos=s0,s0=peg$FAILED)}else peg$currPos=s0,s0=peg$FAILED;return peg$silentFails--,s0===peg$FAILED&&(peg$FAILED,0===peg$silentFails&&peg$fail(peg$c48)),s0}function peg$parseAtom(){var s0,s1,s2;if(peg$silentFails++,s0=peg$currPos,s1=[],peg$c51.test(input.charAt(peg$currPos))?(s2=input.charAt(peg$currPos),peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c52)),s2!==peg$FAILED)for(;s2!==peg$FAILED;)s1.push(s2),peg$c51.test(input.charAt(peg$currPos))?(s2=input.charAt(peg$currPos),peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c52));else s1=peg$FAILED;return s1!==peg$FAILED&&(peg$savedPos=s0,s1=peg$c53(s1)),s0=s1,peg$silentFails--,s0===peg$FAILED&&(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c50)),s0}function peg$parseLabel(){var s0;return peg$silentFails++,(s0=peg$parseAtom())===peg$FAILED&&(s0=peg$parseString()),peg$silentFails--,s0===peg$FAILED&&(peg$FAILED,0===peg$silentFails&&peg$fail(peg$c54)),s0}function peg$parseValue(){return peg$parseLabel()}function peg$parseItem(){var s0,s1,s2,s3,s4;return s0=peg$currPos,s1=peg$parseLabel(),s1!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s2=peg$c55,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s2!==peg$FAILED&&(s3=peg$parseValue())!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c59(s1,s3)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseItems(){var s0,s1;if(s0=[],(s1=peg$parseItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseItem();else s0=peg$FAILED;return s0}function peg$parseArrowDesc(){var s0,s1,s2,s3;return s0=peg$currPos,123===input.charCodeAt(peg$currPos)?(s1=peg$c60,peg$currPos++):(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s1!==peg$FAILED?((s2=peg$parseItems())===peg$FAILED&&(s2=null),s2!==peg$FAILED?(125===input.charCodeAt(peg$currPos)?(s3=peg$c62,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c63)),s3!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c64(s2)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseSubexp(){var s0,s1,s2,s4,s6,s8,s10;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?((s2=peg$parseArrowDesc())===peg$FAILED&&(s2=null),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s4=peg$parseArrow())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?((s6=peg$parseArrowDesc())===peg$FAILED&&(s6=null),s6!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s8=peg$parseLabel())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?((s10=peg$parseSubexp())===peg$FAILED&&(s10=null),s10!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c65(s2,s4,s6,s8,s10)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseExp(){var s0,s1,s2,s4;return s0=peg$currPos,s1=peg$parseLabel(),s1!==peg$FAILED&&(s2=peg$parseSubexp())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c66(s1,s2)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseValidationKey(){var s0;return input.substr(peg$currPos,9)===peg$c67?(s0=peg$c67,peg$currPos+=9):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c68)),s0===peg$FAILED&&(input.substr(peg$currPos,4)===peg$c69?(s0=peg$c69,peg$currPos+=4):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c70))),s0}function peg$parseValidationItem(){var s0,s1,s2,s3,s4;return s0=peg$currPos,s1=peg$parseValidationKey(),s1!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s2=peg$c55,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s2!==peg$FAILED&&(s3=peg$parseValue())!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c71(s1,s3)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseValidationItems(){var s0,s1;if(s0=[],(s1=peg$parseValidationItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseValidationItem();else s0=peg$FAILED;return s0}function peg$parseConfigValidation(){var s0,s1,s2,s4,s6,s7,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,10)===peg$c72?(s2=peg$c72,peg$currPos+=10):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c73)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED?((s7=peg$parseValidationItems())===peg$FAILED&&(s7=null),s7!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s8=peg$c74,peg$currPos+=2):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c76(s7)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGvizLayout(){var s0;return input.substr(peg$currPos,3)===peg$c77?(s0=peg$c77,peg$currPos+=3):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c78)),s0===peg$FAILED&&(input.substr(peg$currPos,5)===peg$c79?(s0=peg$c79,peg$currPos+=5):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c80))),s0}function peg$parseInShape(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,8)===peg$c81?(s2=peg$c81,peg$currPos+=8):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c82)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizShape())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c83(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseOutShape(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,9)===peg$c84?(s2=peg$c84,peg$currPos+=9):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c85)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizShape())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c86(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseNodeShape(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,10)===peg$c87?(s2=peg$c87,peg$currPos+=10):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c88)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizShape())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c89(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGraphLayout(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,12)===peg$c90?(s2=peg$c90,peg$currPos+=12):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c91)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizLayout())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c92(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseStateItem(){var s0;return(s0=peg$parseInShape())===peg$FAILED&&(s0=peg$parseOutShape())===peg$FAILED&&(s0=peg$parseNodeShape())===peg$FAILED&&(s0=peg$parseGraphLayout()),s0}function peg$parseStateItems(){var s0,s1;if(s0=[],(s1=peg$parseStateItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseStateItem();else s0=peg$FAILED;return s0}function peg$parseConfigState(){var s0,s1,s2,s4,s6,s7,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,5)===peg$c93?(s2=peg$c93,peg$currPos+=5):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c94)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED?((s7=peg$parseStateItems())===peg$FAILED&&(s7=null),s7!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s8=peg$c74,peg$currPos+=2):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c95(s7)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseActionKey(){var s0;return input.substr(peg$currPos,9)===peg$c67?(s0=peg$c67,peg$currPos+=9):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c68)),s0===peg$FAILED&&(input.substr(peg$currPos,4)===peg$c69?(s0=peg$c69,peg$currPos+=4):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c70))),s0}function peg$parseActionItem(){var s0,s1,s2,s3,s4;return s0=peg$currPos,s1=peg$parseActionKey(),s1!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s2=peg$c55,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s2!==peg$FAILED&&(s3=peg$parseValue())!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c96(s1,s3)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseActionItems(){var s0,s1;if(s0=[],(s1=peg$parseActionItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseActionItem();else s0=peg$FAILED;return s0}function peg$parseConfigAction(){var s0,s1,s2,s4,s6,s7,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,6)===peg$c97?(s2=peg$c97,peg$currPos+=6):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c98)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED?((s7=peg$parseActionItems())===peg$FAILED&&(s7=null),s7!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s8=peg$c74,peg$currPos+=2):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c99(s7)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseTransitionKey(){var s0;return input.substr(peg$currPos,9)===peg$c67?(s0=peg$c67,peg$currPos+=9):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c68)),s0===peg$FAILED&&(input.substr(peg$currPos,4)===peg$c69?(s0=peg$c69,peg$currPos+=4):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c70))),s0}function peg$parseTransitionItem(){var s0,s1,s2,s3,s4;return s0=peg$currPos,s1=peg$parseTransitionKey(),s1!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s2=peg$c55,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s2!==peg$FAILED&&(s3=peg$parseValue())!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c100(s1,s3)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseTransitionItems(){var s0,s1;if(s0=[],(s1=peg$parseTransitionItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseTransitionItem();else s0=peg$FAILED;return s0}function peg$parseConfigTransition(){var s0,s1,s2,s4,s6,s7,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,10)===peg$c101?(s2=peg$c101,peg$currPos+=10):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c102)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED?((s7=peg$parseTransitionItems())===peg$FAILED&&(s7=null),s7!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s8=peg$c74,peg$currPos+=2):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c103(s7)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGraphBg(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,8)===peg$c104?(s2=peg$c104,peg$currPos+=8):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c105)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizShape())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c106(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseMinTransitionsPerState(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,25)===peg$c107?(s2=peg$c107,peg$currPos+=25):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c108)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseLabel())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c109(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseMaxTransitionsPerState(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,25)===peg$c110?(s2=peg$c110,peg$currPos+=25):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c111)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseLabel())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c112(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGraphItem(){var s0;return(s0=peg$parseGraphBg())===peg$FAILED&&(s0=peg$parseMinTransitionsPerState())===peg$FAILED&&(s0=peg$parseMaxTransitionsPerState()),s0}function peg$parseGraphItems(){var s0,s1;if(s0=[],(s1=peg$parseGraphItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseGraphItem();else s0=peg$FAILED;return s0}function peg$parseConfigGraph(){var s0,s1,s2,s4,s6,s8,s10;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,5)===peg$c113?(s2=peg$c113,peg$currPos+=5):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c114)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?((s8=peg$parseGraphItems())===peg$FAILED&&(s8=null),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s10=peg$c74,peg$currPos+=2):(s10=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s10!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c115(s8)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseConfig(){var s0;return(s0=peg$parseConfigGraph())===peg$FAILED&&(s0=peg$parseConfigTransition())===peg$FAILED&&(s0=peg$parseConfigAction())===peg$FAILED&&(s0=peg$parseConfigState())===peg$FAILED&&(s0=peg$parseConfigValidation()),s0}function peg$parseTerm(){var s0;return(s0=peg$parseExp())===peg$FAILED&&(s0=peg$parseConfig()),s0}function peg$parseTermList(){var s0,s1;for(s0=[],s1=peg$parseTerm();s1!==peg$FAILED;)s0.push(s1),s1=peg$parseTerm();return s0}options=void 0!==options?options:{};var peg$result,peg$FAILED={},peg$startRuleFunctions={Document:peg$parseDocument},peg$startRuleFunction=peg$parseDocument,peg$c0=function(e){return e},peg$c1="square",peg$c2=peg$literalExpectation("square",!1),peg$c3="rectangle",peg$c4=peg$literalExpectation("rectangle",!1),peg$c5="circle",peg$c6=peg$literalExpectation("circle",!1),peg$c7=peg$otherExpectation("forward arrow"),peg$c8="->",peg$c9=peg$literalExpectation("->",!1),peg$c10=peg$otherExpectation("two way arrow"),peg$c11="<->",peg$c12=peg$literalExpectation("<->",!1),peg$c13=/^[0-9a-fA-F]/,peg$c14=peg$classExpectation([["0","9"],["a","f"],["A","F"]],!1,!1),peg$c15='"',peg$c16=peg$literalExpectation('"',!1),peg$c17="\\",peg$c18=peg$literalExpectation("\\",!1),peg$c19="/",peg$c20=peg$literalExpectation("/",!1),peg$c21="b",peg$c22=peg$literalExpectation("b",!1),peg$c23=function(){return"\b"},peg$c24="f",peg$c25=peg$literalExpectation("f",!1),peg$c26=function(){return"\f"},peg$c27="n",peg$c28=peg$literalExpectation("n",!1),peg$c29=function(){return"\n"},peg$c30="r",peg$c31=peg$literalExpectation("r",!1),peg$c32=function(){return"\r"},peg$c33="t",peg$c34=peg$literalExpectation("t",!1),peg$c35=function(){return"\t"},peg$c36="v",peg$c37=peg$literalExpectation("v",!1),peg$c38=function(){return"\v"},peg$c39="u",peg$c40=peg$literalExpectation("u",!1),peg$c41=function(digits){return String.fromCharCode(parseInt(digits,16))},peg$c42=function(Sequence){return Sequence},peg$c43=/^[ -!#-[\]-\u10FFFF]/,peg$c44=peg$classExpectation([[" ","!"],["#","["],["]","ჿ"],"F","F"],!1,!1),peg$c45=peg$otherExpectation("whitespace"),peg$c46=/^[ \t\n\r\x0B]/,peg$c47=peg$classExpectation([" ","\t","\n","\r","\v"],!1,!1),peg$c48=peg$otherExpectation("string"),peg$c49=function(chars){return chars.join("")},peg$c50=peg$otherExpectation("atom"),peg$c51=/^[0-9a-zA-Z.+_&()%$#@!?,']/,peg$c52=peg$classExpectation([["0","9"],["a","z"],["A","Z"],".","+","_","&","(",")","%","$","#","@","!","?",",","'"],!1,!1),peg$c53=function(text){return text.join("")},peg$c54=peg$otherExpectation("label"),peg$c55=":",peg$c56=peg$literalExpectation(":",!1),peg$c57=";",peg$c58=peg$literalExpectation(";",!1),peg$c59=function(text,value){return{text:text,value:value}},peg$c60="{",peg$c61=peg$literalExpectation("{",!1),peg$c62="}",peg$c63=peg$literalExpectation("}",!1),peg$c64=function(items){return items},peg$c65=function(ldesc,arrow,rdesc,label,tail){var base={kind:arrow,to:label};return tail&&tail!==[]&&(base.se=tail),ldesc&&(base.ldesc=ldesc),rdesc&&(base.rdesc=rdesc),base},peg$c66=function(label,se){var base={from:label};return se&&se!==[]&&(base.se=se),base},peg$c67="whargarbl",peg$c68=peg$literalExpectation("whargarbl",!1),peg$c69="todo",peg$c70=peg$literalExpectation("todo",!1),peg$c71=function(validationkey,value){return{key:validationkey,value:value}},peg$c72="validation",peg$c73=peg$literalExpectation("validation",!1),peg$c74="};",peg$c75=peg$literalExpectation("};",!1),peg$c76=function(validation_items){return{config_kind:"validation",config_items:validation_items||[]}},peg$c77="dot",peg$c78=peg$literalExpectation("dot",!1),peg$c79="circo",peg$c80=peg$literalExpectation("circo",!1),peg$c81="in_shape",peg$c82=peg$literalExpectation("in_shape",!1),peg$c83=function(value){return{key:"in_shape",value:value}},peg$c84="out_shape",peg$c85=peg$literalExpectation("out_shape",!1),peg$c86=function(value){return{key:"out_shape",value:value}},peg$c87="node_shape",peg$c88=peg$literalExpectation("node_shape",!1),peg$c89=function(value){return{key:"node_shape",value:value}},peg$c90="graph_layout",peg$c91=peg$literalExpectation("graph_layout",!1),peg$c92=function(value){return{key:"graph_layout",value:value}},peg$c93="state",peg$c94=peg$literalExpectation("state",!1),peg$c95=function(state_items){return{config_kind:"state",config_items:state_items||[]}},peg$c96=function(actionkey,value){return{key:actionkey,value:value}},peg$c97="action",peg$c98=peg$literalExpectation("action",!1),peg$c99=function(action_items){return{config_kind:"action",config_items:action_items||[]}},peg$c100=function(transitionkey,value){return{key:transitionkey,value:value}},peg$c101="transition",peg$c102=peg$literalExpectation("transition",!1),peg$c103=function(transition_items){return{config_kind:"transition",config_items:transition_items||[]}},peg$c104="graph_bg",peg$c105=peg$literalExpectation("graph_bg",!1),peg$c106=function(value){return{key:"graph_bg",value:value}},peg$c107="min_transitions_per_state",peg$c108=peg$literalExpectation("min_transitions_per_state",!1),peg$c109=function(value){return{key:"min_transitions_per_state",value:value}},peg$c110="max_transitions_per_state",peg$c111=peg$literalExpectation("max_transitions_per_state",!1),peg$c112=function(value){return{key:"max_transitions_per_state",value:value}},peg$c113="graph",peg$c114=peg$literalExpectation("graph",!1),peg$c115=function(graph_items){return{config_kind:"graph",config_items:graph_items||[]}},peg$currPos=0,peg$savedPos=0,peg$posDetailsCache=[{line:1,column:1}],peg$maxFailPos=0,peg$maxFailExpected=[],peg$silentFails=0;if("startRule"in options){if(!(options.startRule in peg$startRuleFunctions))throw new Error("Can't start parsing from rule \""+options.startRule+'".');peg$startRuleFunction=peg$startRuleFunctions[options.startRule]}if((peg$result=peg$startRuleFunction())!==peg$FAILED&&peg$currPos===input.length)return peg$result;throw peg$result!==peg$FAILED&&peg$currPos<input.length&&peg$fail({type:"end"}),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$maxFailPos))}!function(child,parent){function ctor(){this.constructor=child}ctor.prototype=parent.prototype,child.prototype=new ctor}(peg$SyntaxError,Error),peg$SyntaxError.buildMessage=function(expected,found){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)}var DESCRIBE_EXPECTATION_FNS={literal:function(expectation){return'"'+literalEscape(expectation.text)+'"'},class:function(expectation){var i,escapedParts="";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}};return"Expected "+function(expected){var i,j,descriptions=new Array(expected.length);for(i=0;i<expected.length;i++)descriptions[i]=describeExpectation(expected[i]);if(descriptions.sort(),descriptions.length>0){for(i=1,j=1;i<descriptions.length;i++)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]}}(expected)+" but "+function(found){return found?'"'+literalEscape(found)+'"':"end of input"}(found)+" found."},module.exports={SyntaxError:peg$SyntaxError,parse:peg$parse}},{}],2:[function(require,module,exports){"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj},rand_select=function(options){var probability_property=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"probability";if(!Array.isArray(options))throw new TypeError("options must be a non-empty array of objects");if("object"!==_typeof(options[0]))throw new TypeError("options must be a non-empty array of objects");for(var rnd=function(cap){return Math.random()*cap}(options.reduce(function(acc,val){return acc+val[probability_property]},0)),cursor=0,cursor_sum=0;(cursor_sum+=options[cursor++][probability_property])<=rnd;);return options[cursor-1]},seq=function(n){return new Array(n).fill(!0).map(function(_,i){return i})},histograph=function(a){return a.sort().reduce(function(m,v){return m.set(v,m.has(v)?m.get(v)+1:1),m},new Map)},sample_select=function(n,options,probability_property){return seq(n).map(function(i){return rand_select(options,probability_property)})},histo_key=function(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:!0});var viz=function(jssm){var l_states=jssm.states(),node_of=function(state){return"n"+l_states.indexOf(state)},vc=function(col){return jssm._viz_colors[col]||""},strike=[];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  '+l_states.map(function(s){jssm.state_for(s);var 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(" ")+"\n\n  "+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"";var edge=jssm.list_transitions(s,ex),pair=jssm.list_transitions(ex,s),double=pair&&s!==ex,if_obj_field=(jssm.state_for(s),jssm.state_for(ex),function(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(final,complete,terminal){var _solo_1_2=arguments.length>3&&void 0!==arguments[3]?arguments[3]:"_solo";return vc(final?"line_final"+_solo_1_2:complete?"line_complete"+_solo_1_2:terminal?"line_terminal"+_solo_1_2:"normal_line"+_solo_1_2)},textColor=function(final,complete,terminal){var _solo_1_2=arguments.length>3&&void 0!==arguments[3]?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):""},labelInline=[[pair,"probability","headlabel","name","action",double,textColor(h_final,h_complete,h_terminal,double?"_1":"_solo")],[edge,"probability","taillabel","name","action",!0,textColor(t_final,t_complete,t_terminal,double?"_2":"_solo")]].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+'"':"";return pair&&strike.push([ex,s]),node_of(s)+"->"+node_of(ex)+" ["+labelInline+edgeInline+"];"}).join(" ")}).join(" ")+"\n}"};exports.viz=viz},{}],jssm:[function(require,module,exports){"use strict";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}return Array.from(arr)}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(exports,"__esModule",{value:!0}),exports.histograph=exports.rand_select=exports.seq=exports.parse=exports.machine=exports.version=void 0;var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||!1,descriptor.configurable=!0,"value"in descriptor&&(descriptor.writable=!0),Object.defineProperty(target,descriptor.key,descriptor)}}return function(Constructor,protoProps,staticProps){return protoProps&&defineProperties(Constructor.prototype,protoProps),staticProps&&defineProperties(Constructor,staticProps),Constructor}}(),_jssmUtil=require("./jssm-util.js"),_jssmViz=require("./jssm-viz.js"),parse=require("./jssm-dot.js").parse,machine=function(){function machine(_ref){var _this=this,initial_state=_ref.initial_state,_ref$complete=_ref.complete,complete=void 0===_ref$complete?[]:_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,transitions.map(function(tr){if(void 0===tr.from)throw new Error("transition must define 'from': "+JSON.stringify(tr));if(void 0===tr.to)throw new Error("transition must define 'to': "+JSON.stringify(tr));var cursor_from=_this._states.get(tr.from);void 0===cursor_from&&(_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(void 0===cursor_to&&(_this._new_state({name:tr.to,from:[],to:[],complete:complete.includes(tr.to)}),cursor_to=_this._states.get(tr.to)),cursor_from.to.includes(tr.to))throw new Error("already has "+tr.from+" to "+tr.to);if(cursor_from.to.push(tr.to),cursor_to.from.includes(tr.from))throw new Error("already has "+tr.to+" from "+tr.from);cursor_to.from.push(tr.from),_this._edges.push(tr);var thisEdgeId=_this._edges.length-1;if(tr.name){if(_this._named_transitions.has(tr.name))throw new Error('named transition "'+tr.name+'" already created');_this._named_transitions.set(tr.name,thisEdgeId)}var from_mapping=_this._edge_map.get(tr.from);if(void 0===from_mapping&&(_this._edge_map.set(tr.from,new Map),from_mapping=_this._edge_map.get(tr.from)),from_mapping.get(tr.to))throw new Error("from -> to already exists "+tr.from+" "+tr.to);if(from_mapping.set(tr.to,thisEdgeId),tr.action){_this._actions.has(tr.action)||_this._actions.set(tr.action,new Map);var actionMap=_this._actions.get(tr.action);if(!actionMap)throw new Error("should be impossible, satisfying type checker that doesn't know .set precedes .get.  severe error?");if(actionMap.has(tr.from))throw new Error("action "+tr.action+" already attached to origin "+tr.from);actionMap.set(tr.from,thisEdgeId),_this._reverse_actions.has(tr.from)||_this._reverse_actions.set(tr.from,new Map);var rActionMap=_this._reverse_actions.get(tr.from);if(!rActionMap)throw new Error("should be impossible, satisfying type checker that doesn't know .set precedes .get again.  severe error?");if(rActionMap.has(tr.action))throw new Error("r-action "+tr.from+" already attached to action "+tr.action);rActionMap.set(tr.action,thisEdgeId),_this._reverse_action_targets.has(tr.to)||_this._reverse_action_targets.set(tr.to,new Map)}})}return _createClass(machine,[{key:"_new_state",value:function(state_config){if(this._states.has(state_config.name))throw new Error("state "+state_config.name+" already exists");return this._states.set(state_config.name,state_config),state_config.name}},{key:"state",value:function(){return this._state}},{key:"is_changing",value:function(){return!0}},{key:"state_is_final",value:function(whichState){return this.state_is_terminal(whichState)&&this.state_is_complete(whichState)}},{key:"is_final",value:function(){return!this.is_changing()&&this.state_is_final(this.state())}},{key:"machine_state",value:function(){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,state:this._state,states:this._states}}},{key:"load_machine_state",value:function(){return!1}},{key:"states",value:function(){return[].concat(_toConsumableArray(this._states.keys()))}},{key:"state_for",value:function(whichState){var state=this._states.get(whichState);if(state)return state;throw new Error("no such state "+JSON.stringify(state))}},{key:"list_transitions",value:function(){return this._edges}},{key:"list_named_transitions",value:function(){return this._named_transitions}},{key:"list_actions",value:function(){return[].concat(_toConsumableArray(this._actions.keys()))}},{key:"get_transition_by_id",value:function(from,to){return this._edge_map.has(from)?this._edge_map.get(from).get(to):void 0}},{key:"lookup_transition_for",value:function(from,to){var id=this.get_transition_by_id(from,to);return void 0===id?void 0:this._edges[id]}},{key:"list_transitions",value:function(){var whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return{entrances:this.list_entrances(whichState),exits:this.list_exits(whichState)}}},{key:"list_entrances",value:function(){var whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return(this._states.get(whichState)||{}).from}},{key:"list_exits",value:function(){var whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return(this._states.get(whichState)||{}).to}},{key:"probable_exits_for",value:function(whichState){var _this2=this;return(this._states.get(whichState)||{to:[]}).to.map(function(ws){return _this2.lookup_transition_for(_this2.state(),ws)}).filter(function(defined){return defined})||[]}},{key:"probabilistic_transition",value:function(){var selected=(0,_jssmUtil.rand_select)(this.probable_exits_for(this.state()));return this.transition(selected.to)}},{key:"probabilistic_walk",value:function(n){var _this3=this;return(0,_jssmUtil.seq)(n-1).map(function(i){var state_was=_this3.state();return _this3.probabilistic_transition(),state_was}).concat([this.state()])}},{key:"probabilistic_histo_walk",value:function(n){return(0,_jssmUtil.histograph)(this.probabilistic_walk(n))}},{key:"actions",value:function(){var whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state(),wstate=this._reverse_actions.get(whichState);if(wstate)return[].concat(_toConsumableArray(wstate.keys()));throw new Error("No such state "+JSON.stringify(whichState))}},{key:"list_states_having_action",value:function(whichState){var wstate=this._actions.get(whichState);if(wstate)return[].concat(_toConsumableArray(wstate.keys()));throw new Error("No such state "+JSON.stringify(whichState))}},{key:"list_exit_actions",value:function(){var _this4=this,whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return[].concat(_toConsumableArray((this._reverse_actions.get(whichState)||new Map).values())).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(){var _this5=this,whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return[].concat(_toConsumableArray((this._reverse_actions.get(whichState)||new Map).values())).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(whichState){return 0===this.list_entrances(whichState).length}},{key:"has_unenterables",value:function(){return this.states.some(this.is_unenterable)}},{key:"is_terminal",value:function(){return this.state_is_terminal(this.state())}},{key:"state_is_terminal",value:function(whichState){return 0===this.list_exits(whichState).length}},{key:"has_terminals",value:function(){return this.states.some(this.state_is_terminal)}},{key:"is_complete",value:function(){return this.state_is_complete(this.state())}},{key:"state_is_complete",value:function(whichState){var wstate=this._states.get(whichState);if(wstate)return wstate.complete;throw new Error("No such state "+JSON.stringify(whichState))}},{key:"has_completes",value:function(){return this.states.some(this.state_is_complete)}},{key:"action",value:function(name,newData){if(this.valid_action(name,newData)){var edge=this.current_action_edge_for(name);if(!edge)throw new Error("Should be impossible - valid_action true, no edge in current_action_edge_for, in action("+JSON.stringify(name)+"...)");return this._state=edge.to,!0}return!1}},{key:"transition",value:function(newState,newData){return!!this.valid_transition(newState,newData)&&(this._state=newState,!0)}},{key:"force_transition",value:function(newState,newData){return!!this.valid_force_transition(newState,newData)&&(this._state=newState,!0)}},{key:"current_action_for",value:function(action){var action_base=this._actions.get(action);return action_base?action_base.get(this.state()):void 0}},{key:"current_action_edge_for",value:function(action){var idx=this.current_action_for(action);return void 0!==idx?this._edges[idx]:void 0}},{key:"valid_action",value:function(action,newData){return void 0!==this.current_action_for(action)}},{key:"valid_transition",value:function(newState,newData){return void 0!==this.lookup_transition_for(this.state(),newState)}},{key:"valid_force_transition",value:function(newState,newData){return!1}},{key:"viz",value:function(){return(0,_jssmViz.viz)(this)}},{key:"set_viz_colors",value:function(){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"}}}]),machine}();exports.version="2.6.6",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}]},{},[]);
\ No newline at end of file
+require=function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a="function"==typeof require&&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||e)},l,l.exports,e,t,n,r)}return n[o].exports}for(var i="function"==typeof require&&require,o=0;o<r.length;o++)s(r[o]);return s}({1:[function(require,module,exports){"use strict";function peg$SyntaxError(message,expected,found,location){this.message=message,this.expected=expected,this.found=found,this.location=location,this.name="SyntaxError","function"==typeof Error.captureStackTrace&&Error.captureStackTrace(this,peg$SyntaxError)}function peg$parse(input,options){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$otherExpectation(description){return{type:"other",description:description}}function peg$computePosDetails(pos){var p,details=peg$posDetailsCache[pos];if(details)return details;for(p=pos-1;!peg$posDetailsCache[p];)p--;for(details={line:(details=peg$posDetailsCache[p]).line,column:details.column};p<pos;)10===input.charCodeAt(p)?(details.line++,details.column=1):details.column++,p++;return peg$posDetailsCache[pos]=details,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){peg$currPos<peg$maxFailPos||(peg$currPos>peg$maxFailPos&&(peg$maxFailPos=peg$currPos,peg$maxFailExpected=[]),peg$maxFailExpected.push(expected))}function peg$buildStructuredError(expected,found,location){return new peg$SyntaxError(peg$SyntaxError.buildMessage(expected,found),expected,found,location)}function peg$parseDocument(){var s0,s1,s2;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED&&(s2=peg$parseTermList())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c0(s2)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGvizShape(){var s0;return input.substr(peg$currPos,6)===peg$c1?(s0=peg$c1,peg$currPos+=6):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c2)),s0===peg$FAILED&&(input.substr(peg$currPos,9)===peg$c3?(s0=peg$c3,peg$currPos+=9):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c4)),s0===peg$FAILED&&(input.substr(peg$currPos,6)===peg$c5?(s0=peg$c5,peg$currPos+=6):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c6)))),s0}function peg$parseForwardArrow(){var s0;return peg$silentFails++,input.substr(peg$currPos,2)===peg$c8?(s0=peg$c8,peg$currPos+=2):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c9)),peg$silentFails--,s0===peg$FAILED&&(peg$FAILED,0===peg$silentFails&&peg$fail(peg$c7)),s0}function peg$parseTwoWayArrow(){var s0;return peg$silentFails++,input.substr(peg$currPos,3)===peg$c11?(s0=peg$c11,peg$currPos+=3):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c12)),peg$silentFails--,s0===peg$FAILED&&(peg$FAILED,0===peg$silentFails&&peg$fail(peg$c10)),s0}function peg$parseArrow(){var s0;return(s0=peg$parseForwardArrow())===peg$FAILED&&(s0=peg$parseTwoWayArrow()),s0}function peg$parseHexDigit(){var s0;return peg$c13.test(input.charAt(peg$currPos))?(s0=input.charAt(peg$currPos),peg$currPos++):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c14)),s0}function peg$parseChar(){var s0,s2,s3,s4,s5,s6,s7,s8,s9;return(s0=peg$parseUnescaped())===peg$FAILED&&(s0=peg$currPos,peg$parseEscape()!==peg$FAILED?(34===input.charCodeAt(peg$currPos)?(s2=peg$c15,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c16)),s2===peg$FAILED&&(92===input.charCodeAt(peg$currPos)?(s2=peg$c17,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c18)),s2===peg$FAILED&&(47===input.charCodeAt(peg$currPos)?(s2=peg$c19,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c20)),s2===peg$FAILED&&(s2=peg$currPos,98===input.charCodeAt(peg$currPos)?(s3=peg$c21,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c22)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c23()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,102===input.charCodeAt(peg$currPos)?(s3=peg$c24,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c25)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c26()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,110===input.charCodeAt(peg$currPos)?(s3=peg$c27,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c28)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c29()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,114===input.charCodeAt(peg$currPos)?(s3=peg$c30,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c31)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c32()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,116===input.charCodeAt(peg$currPos)?(s3=peg$c33,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c34)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c35()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,118===input.charCodeAt(peg$currPos)?(s3=peg$c36,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c37)),s3!==peg$FAILED&&(peg$savedPos=s2,s3=peg$c38()),(s2=s3)===peg$FAILED&&(s2=peg$currPos,117===input.charCodeAt(peg$currPos)?(s3=peg$c39,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c40)),s3!==peg$FAILED?(s4=peg$currPos,s5=peg$currPos,(s6=peg$parseHexDigit())!==peg$FAILED&&(s7=peg$parseHexDigit())!==peg$FAILED&&(s8=peg$parseHexDigit())!==peg$FAILED&&(s9=peg$parseHexDigit())!==peg$FAILED?s5=s6=[s6,s7,s8,s9]:(peg$currPos=s5,s5=peg$FAILED),(s4=s5!==peg$FAILED?input.substring(s4,peg$currPos):s5)!==peg$FAILED?(peg$savedPos=s2,s2=s3=peg$c41(s4)):(peg$currPos=s2,s2=peg$FAILED)):(peg$currPos=s2,s2=peg$FAILED)))))))))),s2!==peg$FAILED?(peg$savedPos=s0,s0=peg$c42(s2)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)),s0}function peg$parseEscape(){var s0;return 92===input.charCodeAt(peg$currPos)?(s0=peg$c17,peg$currPos++):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c18)),s0}function peg$parseQuoteMark(){var s0;return 34===input.charCodeAt(peg$currPos)?(s0=peg$c15,peg$currPos++):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c16)),s0}function peg$parseUnescaped(){var s0;return peg$c43.test(input.charAt(peg$currPos))?(s0=input.charAt(peg$currPos),peg$currPos++):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c44)),s0}function peg$parseWhitespace(){var s0,s1;for(peg$silentFails++,s0=[],peg$c46.test(input.charAt(peg$currPos))?(s1=input.charAt(peg$currPos),peg$currPos++):(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c47));s1!==peg$FAILED;)s0.push(s1),peg$c46.test(input.charAt(peg$currPos))?(s1=input.charAt(peg$currPos),peg$currPos++):(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c47));return peg$silentFails--,s0===peg$FAILED&&(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c45)),s0}function peg$parseString(){var s0,s2,s3;if(peg$silentFails++,s0=peg$currPos,peg$parseQuoteMark()!==peg$FAILED){for(s2=[],s3=peg$parseChar();s3!==peg$FAILED;)s2.push(s3),s3=peg$parseChar();s2!==peg$FAILED&&(s3=peg$parseQuoteMark())!==peg$FAILED?(peg$savedPos=s0,s0=peg$c49(s2)):(peg$currPos=s0,s0=peg$FAILED)}else peg$currPos=s0,s0=peg$FAILED;return peg$silentFails--,s0===peg$FAILED&&(peg$FAILED,0===peg$silentFails&&peg$fail(peg$c48)),s0}function peg$parseAtom(){var s0,s1,s2;if(peg$silentFails++,s0=peg$currPos,s1=[],peg$c51.test(input.charAt(peg$currPos))?(s2=input.charAt(peg$currPos),peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c52)),s2!==peg$FAILED)for(;s2!==peg$FAILED;)s1.push(s2),peg$c51.test(input.charAt(peg$currPos))?(s2=input.charAt(peg$currPos),peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c52));else s1=peg$FAILED;return s1!==peg$FAILED&&(peg$savedPos=s0,s1=peg$c53(s1)),s0=s1,peg$silentFails--,s0===peg$FAILED&&(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c50)),s0}function peg$parseLabel(){var s0;return peg$silentFails++,(s0=peg$parseAtom())===peg$FAILED&&(s0=peg$parseString()),peg$silentFails--,s0===peg$FAILED&&(peg$FAILED,0===peg$silentFails&&peg$fail(peg$c54)),s0}function peg$parseValue(){return peg$parseLabel()}function peg$parseItem(){var s0,s1,s2,s3,s4;return s0=peg$currPos,s1=peg$parseLabel(),s1!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s2=peg$c55,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s2!==peg$FAILED&&(s3=peg$parseValue())!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c59(s1,s3)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseItems(){var s0,s1;if(s0=[],(s1=peg$parseItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseItem();else s0=peg$FAILED;return s0}function peg$parseArrowDesc(){var s0,s1,s2,s3;return s0=peg$currPos,123===input.charCodeAt(peg$currPos)?(s1=peg$c60,peg$currPos++):(s1=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s1!==peg$FAILED?((s2=peg$parseItems())===peg$FAILED&&(s2=null),s2!==peg$FAILED?(125===input.charCodeAt(peg$currPos)?(s3=peg$c62,peg$currPos++):(s3=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c63)),s3!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c64(s2)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseSubexp(){var s0,s1,s2,s4,s6,s8,s10;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?((s2=peg$parseArrowDesc())===peg$FAILED&&(s2=null),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s4=peg$parseArrow())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?((s6=peg$parseArrowDesc())===peg$FAILED&&(s6=null),s6!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s8=peg$parseLabel())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?((s10=peg$parseSubexp())===peg$FAILED&&(s10=null),s10!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c65(s2,s4,s6,s8,s10)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseExp(){var s0,s1,s2,s4;return s0=peg$currPos,s1=peg$parseLabel(),s1!==peg$FAILED&&(s2=peg$parseSubexp())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c66(s1,s2)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseValidationKey(){var s0;return input.substr(peg$currPos,9)===peg$c67?(s0=peg$c67,peg$currPos+=9):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c68)),s0===peg$FAILED&&(input.substr(peg$currPos,4)===peg$c69?(s0=peg$c69,peg$currPos+=4):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c70))),s0}function peg$parseValidationItem(){var s0,s1,s2,s3,s4;return s0=peg$currPos,s1=peg$parseValidationKey(),s1!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s2=peg$c55,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s2!==peg$FAILED&&(s3=peg$parseValue())!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c71(s1,s3)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseValidationItems(){var s0,s1;if(s0=[],(s1=peg$parseValidationItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseValidationItem();else s0=peg$FAILED;return s0}function peg$parseConfigValidation(){var s0,s1,s2,s4,s6,s7,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,10)===peg$c72?(s2=peg$c72,peg$currPos+=10):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c73)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED?((s7=peg$parseValidationItems())===peg$FAILED&&(s7=null),s7!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s8=peg$c74,peg$currPos+=2):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c76(s7)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGvizLayout(){var s0;return input.substr(peg$currPos,3)===peg$c77?(s0=peg$c77,peg$currPos+=3):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c78)),s0===peg$FAILED&&(input.substr(peg$currPos,5)===peg$c79?(s0=peg$c79,peg$currPos+=5):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c80))),s0}function peg$parseInShape(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,8)===peg$c81?(s2=peg$c81,peg$currPos+=8):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c82)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizShape())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c83(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseOutShape(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,9)===peg$c84?(s2=peg$c84,peg$currPos+=9):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c85)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizShape())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c86(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseNodeShape(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,10)===peg$c87?(s2=peg$c87,peg$currPos+=10):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c88)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizShape())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c89(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGraphLayout(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,12)===peg$c90?(s2=peg$c90,peg$currPos+=12):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c91)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizLayout())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c92(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseStateItem(){var s0;return(s0=peg$parseInShape())===peg$FAILED&&(s0=peg$parseOutShape())===peg$FAILED&&(s0=peg$parseNodeShape())===peg$FAILED&&(s0=peg$parseGraphLayout()),s0}function peg$parseStateItems(){var s0,s1;if(s0=[],(s1=peg$parseStateItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseStateItem();else s0=peg$FAILED;return s0}function peg$parseConfigState(){var s0,s1,s2,s4,s6,s7,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,5)===peg$c93?(s2=peg$c93,peg$currPos+=5):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c94)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED?((s7=peg$parseStateItems())===peg$FAILED&&(s7=null),s7!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s8=peg$c74,peg$currPos+=2):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c95(s7)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseActionKey(){var s0;return input.substr(peg$currPos,9)===peg$c67?(s0=peg$c67,peg$currPos+=9):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c68)),s0===peg$FAILED&&(input.substr(peg$currPos,4)===peg$c69?(s0=peg$c69,peg$currPos+=4):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c70))),s0}function peg$parseActionItem(){var s0,s1,s2,s3,s4;return s0=peg$currPos,s1=peg$parseActionKey(),s1!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s2=peg$c55,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s2!==peg$FAILED&&(s3=peg$parseValue())!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c96(s1,s3)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseActionItems(){var s0,s1;if(s0=[],(s1=peg$parseActionItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseActionItem();else s0=peg$FAILED;return s0}function peg$parseConfigAction(){var s0,s1,s2,s4,s6,s7,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,6)===peg$c97?(s2=peg$c97,peg$currPos+=6):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c98)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED?((s7=peg$parseActionItems())===peg$FAILED&&(s7=null),s7!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s8=peg$c74,peg$currPos+=2):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c99(s7)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseTransitionKey(){var s0;return input.substr(peg$currPos,9)===peg$c67?(s0=peg$c67,peg$currPos+=9):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c68)),s0===peg$FAILED&&(input.substr(peg$currPos,4)===peg$c69?(s0=peg$c69,peg$currPos+=4):(s0=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c70))),s0}function peg$parseTransitionItem(){var s0,s1,s2,s3,s4;return s0=peg$currPos,s1=peg$parseTransitionKey(),s1!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s2=peg$c55,peg$currPos++):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s2!==peg$FAILED&&(s3=peg$parseValue())!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s4=peg$c57,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s4!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c100(s1,s3)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseTransitionItems(){var s0,s1;if(s0=[],(s1=peg$parseTransitionItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseTransitionItem();else s0=peg$FAILED;return s0}function peg$parseConfigTransition(){var s0,s1,s2,s4,s6,s7,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,10)===peg$c101?(s2=peg$c101,peg$currPos+=10):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c102)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED?((s7=peg$parseTransitionItems())===peg$FAILED&&(s7=null),s7!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s8=peg$c74,peg$currPos+=2):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c103(s7)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGraphBg(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,8)===peg$c104?(s2=peg$c104,peg$currPos+=8):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c105)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseGvizShape())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c106(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseMinTransitionsPerState(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,25)===peg$c107?(s2=peg$c107,peg$currPos+=25):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c108)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseLabel())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c109(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseMaxTransitionsPerState(){var s0,s1,s2,s4,s6,s8;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,25)===peg$c110?(s2=peg$c110,peg$currPos+=25):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c111)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED&&(s6=peg$parseLabel())!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(59===input.charCodeAt(peg$currPos)?(s8=peg$c57,peg$currPos++):(s8=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c58)),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c112(s6)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseGraphItem(){var s0;return(s0=peg$parseGraphBg())===peg$FAILED&&(s0=peg$parseMinTransitionsPerState())===peg$FAILED&&(s0=peg$parseMaxTransitionsPerState()),s0}function peg$parseGraphItems(){var s0,s1;if(s0=[],(s1=peg$parseGraphItem())!==peg$FAILED)for(;s1!==peg$FAILED;)s0.push(s1),s1=peg$parseGraphItem();else s0=peg$FAILED;return s0}function peg$parseConfigGraph(){var s0,s1,s2,s4,s6,s8,s10;return s0=peg$currPos,s1=peg$parseWhitespace(),s1!==peg$FAILED?(input.substr(peg$currPos,5)===peg$c113?(s2=peg$c113,peg$currPos+=5):(s2=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c114)),s2!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(58===input.charCodeAt(peg$currPos)?(s4=peg$c55,peg$currPos++):(s4=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c56)),s4!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(123===input.charCodeAt(peg$currPos)?(s6=peg$c60,peg$currPos++):(s6=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c61)),s6!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?((s8=peg$parseGraphItems())===peg$FAILED&&(s8=null),s8!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(input.substr(peg$currPos,2)===peg$c74?(s10=peg$c74,peg$currPos+=2):(s10=peg$FAILED,0===peg$silentFails&&peg$fail(peg$c75)),s10!==peg$FAILED&&peg$parseWhitespace()!==peg$FAILED?(peg$savedPos=s0,s0=s1=peg$c115(s8)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED)):(peg$currPos=s0,s0=peg$FAILED),s0}function peg$parseConfig(){var s0;return(s0=peg$parseConfigGraph())===peg$FAILED&&(s0=peg$parseConfigTransition())===peg$FAILED&&(s0=peg$parseConfigAction())===peg$FAILED&&(s0=peg$parseConfigState())===peg$FAILED&&(s0=peg$parseConfigValidation()),s0}function peg$parseTerm(){var s0;return(s0=peg$parseExp())===peg$FAILED&&(s0=peg$parseConfig()),s0}function peg$parseTermList(){var s0,s1;for(s0=[],s1=peg$parseTerm();s1!==peg$FAILED;)s0.push(s1),s1=peg$parseTerm();return s0}options=void 0!==options?options:{};var peg$result,peg$FAILED={},peg$startRuleFunctions={Document:peg$parseDocument},peg$startRuleFunction=peg$parseDocument,peg$c0=function(e){return e},peg$c1="square",peg$c2=peg$literalExpectation("square",!1),peg$c3="rectangle",peg$c4=peg$literalExpectation("rectangle",!1),peg$c5="circle",peg$c6=peg$literalExpectation("circle",!1),peg$c7=peg$otherExpectation("forward arrow"),peg$c8="->",peg$c9=peg$literalExpectation("->",!1),peg$c10=peg$otherExpectation("two way arrow"),peg$c11="<->",peg$c12=peg$literalExpectation("<->",!1),peg$c13=/^[0-9a-fA-F]/,peg$c14=peg$classExpectation([["0","9"],["a","f"],["A","F"]],!1,!1),peg$c15='"',peg$c16=peg$literalExpectation('"',!1),peg$c17="\\",peg$c18=peg$literalExpectation("\\",!1),peg$c19="/",peg$c20=peg$literalExpectation("/",!1),peg$c21="b",peg$c22=peg$literalExpectation("b",!1),peg$c23=function(){return"\b"},peg$c24="f",peg$c25=peg$literalExpectation("f",!1),peg$c26=function(){return"\f"},peg$c27="n",peg$c28=peg$literalExpectation("n",!1),peg$c29=function(){return"\n"},peg$c30="r",peg$c31=peg$literalExpectation("r",!1),peg$c32=function(){return"\r"},peg$c33="t",peg$c34=peg$literalExpectation("t",!1),peg$c35=function(){return"\t"},peg$c36="v",peg$c37=peg$literalExpectation("v",!1),peg$c38=function(){return"\v"},peg$c39="u",peg$c40=peg$literalExpectation("u",!1),peg$c41=function(digits){return String.fromCharCode(parseInt(digits,16))},peg$c42=function(Sequence){return Sequence},peg$c43=/^[ -!#-[\]-\u10FFFF]/,peg$c44=peg$classExpectation([[" ","!"],["#","["],["]","ჿ"],"F","F"],!1,!1),peg$c45=peg$otherExpectation("whitespace"),peg$c46=/^[ \t\n\r\x0B]/,peg$c47=peg$classExpectation([" ","\t","\n","\r","\v"],!1,!1),peg$c48=peg$otherExpectation("string"),peg$c49=function(chars){return chars.join("")},peg$c50=peg$otherExpectation("atom"),peg$c51=/^[0-9a-zA-Z.+_&()%$#@!?,']/,peg$c52=peg$classExpectation([["0","9"],["a","z"],["A","Z"],".","+","_","&","(",")","%","$","#","@","!","?",",","'"],!1,!1),peg$c53=function(text){return text.join("")},peg$c54=peg$otherExpectation("label"),peg$c55=":",peg$c56=peg$literalExpectation(":",!1),peg$c57=";",peg$c58=peg$literalExpectation(";",!1),peg$c59=function(text,value){return{text:text,value:value}},peg$c60="{",peg$c61=peg$literalExpectation("{",!1),peg$c62="}",peg$c63=peg$literalExpectation("}",!1),peg$c64=function(items){return items},peg$c65=function(ldesc,arrow,rdesc,label,tail){var base={kind:arrow,to:label};return tail&&tail!==[]&&(base.se=tail),ldesc&&(base.ldesc=ldesc),rdesc&&(base.rdesc=rdesc),base},peg$c66=function(label,se){var base={from:label};return se&&se!==[]&&(base.se=se),base},peg$c67="whargarbl",peg$c68=peg$literalExpectation("whargarbl",!1),peg$c69="todo",peg$c70=peg$literalExpectation("todo",!1),peg$c71=function(validationkey,value){return{key:validationkey,value:value}},peg$c72="validation",peg$c73=peg$literalExpectation("validation",!1),peg$c74="};",peg$c75=peg$literalExpectation("};",!1),peg$c76=function(validation_items){return{config_kind:"validation",config_items:validation_items||[]}},peg$c77="dot",peg$c78=peg$literalExpectation("dot",!1),peg$c79="circo",peg$c80=peg$literalExpectation("circo",!1),peg$c81="in_shape",peg$c82=peg$literalExpectation("in_shape",!1),peg$c83=function(value){return{key:"in_shape",value:value}},peg$c84="out_shape",peg$c85=peg$literalExpectation("out_shape",!1),peg$c86=function(value){return{key:"out_shape",value:value}},peg$c87="node_shape",peg$c88=peg$literalExpectation("node_shape",!1),peg$c89=function(value){return{key:"node_shape",value:value}},peg$c90="graph_layout",peg$c91=peg$literalExpectation("graph_layout",!1),peg$c92=function(value){return{key:"graph_layout",value:value}},peg$c93="state",peg$c94=peg$literalExpectation("state",!1),peg$c95=function(state_items){return{config_kind:"state",config_items:state_items||[]}},peg$c96=function(actionkey,value){return{key:actionkey,value:value}},peg$c97="action",peg$c98=peg$literalExpectation("action",!1),peg$c99=function(action_items){return{config_kind:"action",config_items:action_items||[]}},peg$c100=function(transitionkey,value){return{key:transitionkey,value:value}},peg$c101="transition",peg$c102=peg$literalExpectation("transition",!1),peg$c103=function(transition_items){return{config_kind:"transition",config_items:transition_items||[]}},peg$c104="graph_bg",peg$c105=peg$literalExpectation("graph_bg",!1),peg$c106=function(value){return{key:"graph_bg",value:value}},peg$c107="min_transitions_per_state",peg$c108=peg$literalExpectation("min_transitions_per_state",!1),peg$c109=function(value){return{key:"min_transitions_per_state",value:value}},peg$c110="max_transitions_per_state",peg$c111=peg$literalExpectation("max_transitions_per_state",!1),peg$c112=function(value){return{key:"max_transitions_per_state",value:value}},peg$c113="graph",peg$c114=peg$literalExpectation("graph",!1),peg$c115=function(graph_items){return{config_kind:"graph",config_items:graph_items||[]}},peg$currPos=0,peg$savedPos=0,peg$posDetailsCache=[{line:1,column:1}],peg$maxFailPos=0,peg$maxFailExpected=[],peg$silentFails=0;if("startRule"in options){if(!(options.startRule in peg$startRuleFunctions))throw new Error("Can't start parsing from rule \""+options.startRule+'".');peg$startRuleFunction=peg$startRuleFunctions[options.startRule]}if((peg$result=peg$startRuleFunction())!==peg$FAILED&&peg$currPos===input.length)return peg$result;throw peg$result!==peg$FAILED&&peg$currPos<input.length&&peg$fail({type:"end"}),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$maxFailPos))}!function(child,parent){function ctor(){this.constructor=child}ctor.prototype=parent.prototype,child.prototype=new ctor}(peg$SyntaxError,Error),peg$SyntaxError.buildMessage=function(expected,found){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)}var DESCRIBE_EXPECTATION_FNS={literal:function(expectation){return'"'+literalEscape(expectation.text)+'"'},class:function(expectation){var i,escapedParts="";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}};return"Expected "+function(expected){var i,j,descriptions=new Array(expected.length);for(i=0;i<expected.length;i++)descriptions[i]=describeExpectation(expected[i]);if(descriptions.sort(),descriptions.length>0){for(i=1,j=1;i<descriptions.length;i++)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]}}(expected)+" but "+function(found){return found?'"'+literalEscape(found)+'"':"end of input"}(found)+" found."},module.exports={SyntaxError:peg$SyntaxError,parse:peg$parse}},{}],2:[function(require,module,exports){"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(obj){return typeof obj}:function(obj){return obj&&"function"==typeof Symbol&&obj.constructor===Symbol&&obj!==Symbol.prototype?"symbol":typeof obj},weighted_rand_select=function(options){var probability_property=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"probability";if(!Array.isArray(options))throw new TypeError("options must be a non-empty array of objects");if("object"!==_typeof(options[0]))throw new TypeError("options must be a non-empty array of objects");for(var rnd=function(cap){return Math.random()*cap}(options.reduce(function(acc,val){return acc+val[probability_property]},0)),cursor=0,cursor_sum=0;(cursor_sum+=options[cursor++][probability_property])<=rnd;);return options[cursor-1]},seq=function(n){return new Array(n).fill(!0).map(function(_,i){return i})},histograph=function(a){return a.sort().reduce(function(m,v){return m.set(v,m.has(v)?m.get(v)+1:1),m},new Map)},weighted_sample_select=function(n,options,probability_property){return seq(n).map(function(i){return weighted_rand_select(options,probability_property)})},weighted_histo_key=function(n,options,probability_property,extract){return histograph(weighted_sample_select(n,options,probability_property).map(function(s){return s[extract]}))};exports.seq=seq,exports.histograph=histograph,exports.weighted_histo_key=weighted_histo_key,exports.weighted_rand_select=weighted_rand_select,exports.weighted_sample_select=weighted_sample_select},{}],3:[function(require,module,exports){"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var viz=function(jssm){var l_states=jssm.states(),node_of=function(state){return"n"+l_states.indexOf(state)},vc=function(col){return jssm._viz_colors[col]||""},strike=[];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  '+l_states.map(function(s){jssm.state_for(s);var 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(" ")+"\n\n  "+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"";var edge=jssm.list_transitions(s,ex),pair=jssm.list_transitions(ex,s),double=pair&&s!==ex,if_obj_field=(jssm.state_for(s),jssm.state_for(ex),function(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(final,complete,terminal){var _solo_1_2=arguments.length>3&&void 0!==arguments[3]?arguments[3]:"_solo";return vc(final?"line_final"+_solo_1_2:complete?"line_complete"+_solo_1_2:terminal?"line_terminal"+_solo_1_2:"normal_line"+_solo_1_2)},textColor=function(final,complete,terminal){var _solo_1_2=arguments.length>3&&void 0!==arguments[3]?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):""},labelInline=[[pair,"probability","headlabel","name","action",double,textColor(h_final,h_complete,h_terminal,double?"_1":"_solo")],[edge,"probability","taillabel","name","action",!0,textColor(t_final,t_complete,t_terminal,double?"_2":"_solo")]].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+'"':"";return pair&&strike.push([ex,s]),node_of(s)+"->"+node_of(ex)+" ["+labelInline+edgeInline+"];"}).join(" ")}).join(" ")+"\n}"};exports.viz=viz},{}],jssm:[function(require,module,exports){"use strict";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}return Array.from(arr)}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(exports,"__esModule",{value:!0}),exports.histograph=exports.weighted_rand_select=exports.seq=exports.parse=exports.machine=exports.version=void 0;var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||!1,descriptor.configurable=!0,"value"in descriptor&&(descriptor.writable=!0),Object.defineProperty(target,descriptor.key,descriptor)}}return function(Constructor,protoProps,staticProps){return protoProps&&defineProperties(Constructor.prototype,protoProps),staticProps&&defineProperties(Constructor,staticProps),Constructor}}(),_jssmUtil=require("./jssm-util.js"),_jssmViz=require("./jssm-viz.js"),parse=require("./jssm-dot.js").parse,machine=function(){function machine(_ref){var _this=this,initial_state=_ref.initial_state,_ref$complete=_ref.complete,complete=void 0===_ref$complete?[]:_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,transitions.map(function(tr){if(void 0===tr.from)throw new Error("transition must define 'from': "+JSON.stringify(tr));if(void 0===tr.to)throw new Error("transition must define 'to': "+JSON.stringify(tr));var cursor_from=_this._states.get(tr.from);void 0===cursor_from&&(_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(void 0===cursor_to&&(_this._new_state({name:tr.to,from:[],to:[],complete:complete.includes(tr.to)}),cursor_to=_this._states.get(tr.to)),cursor_from.to.includes(tr.to))throw new Error("already has "+tr.from+" to "+tr.to);if(cursor_from.to.push(tr.to),cursor_to.from.includes(tr.from))throw new Error("already has "+tr.to+" from "+tr.from);cursor_to.from.push(tr.from),_this._edges.push(tr);var thisEdgeId=_this._edges.length-1;if(tr.name){if(_this._named_transitions.has(tr.name))throw new Error('named transition "'+tr.name+'" already created');_this._named_transitions.set(tr.name,thisEdgeId)}var from_mapping=_this._edge_map.get(tr.from);if(void 0===from_mapping&&(_this._edge_map.set(tr.from,new Map),from_mapping=_this._edge_map.get(tr.from)),from_mapping.get(tr.to))throw new Error("from -> to already exists "+tr.from+" "+tr.to);if(from_mapping.set(tr.to,thisEdgeId),tr.action){_this._actions.has(tr.action)||_this._actions.set(tr.action,new Map);var actionMap=_this._actions.get(tr.action);if(!actionMap)throw new Error("should be impossible, satisfying type checker that doesn't know .set precedes .get.  severe error?");if(actionMap.has(tr.from))throw new Error("action "+tr.action+" already attached to origin "+tr.from);actionMap.set(tr.from,thisEdgeId),_this._reverse_actions.has(tr.from)||_this._reverse_actions.set(tr.from,new Map);var rActionMap=_this._reverse_actions.get(tr.from);if(!rActionMap)throw new Error("should be impossible, satisfying type checker that doesn't know .set precedes .get again.  severe error?");if(rActionMap.has(tr.action))throw new Error("r-action "+tr.from+" already attached to action "+tr.action);rActionMap.set(tr.action,thisEdgeId),_this._reverse_action_targets.has(tr.to)||_this._reverse_action_targets.set(tr.to,new Map)}})}return _createClass(machine,[{key:"_new_state",value:function(state_config){if(this._states.has(state_config.name))throw new Error("state "+state_config.name+" already exists");return this._states.set(state_config.name,state_config),state_config.name}},{key:"state",value:function(){return this._state}},{key:"is_changing",value:function(){return!0}},{key:"state_is_final",value:function(whichState){return this.state_is_terminal(whichState)&&this.state_is_complete(whichState)}},{key:"is_final",value:function(){return!this.is_changing()&&this.state_is_final(this.state())}},{key:"machine_state",value:function(){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,state:this._state,states:this._states}}},{key:"load_machine_state",value:function(){return!1}},{key:"states",value:function(){return[].concat(_toConsumableArray(this._states.keys()))}},{key:"state_for",value:function(whichState){var state=this._states.get(whichState);if(state)return state;throw new Error("no such state "+JSON.stringify(state))}},{key:"list_transitions",value:function(){return this._edges}},{key:"list_named_transitions",value:function(){return this._named_transitions}},{key:"list_actions",value:function(){return[].concat(_toConsumableArray(this._actions.keys()))}},{key:"get_transition_by_id",value:function(from,to){return this._edge_map.has(from)?this._edge_map.get(from).get(to):void 0}},{key:"lookup_transition_for",value:function(from,to){var id=this.get_transition_by_id(from,to);return void 0===id?void 0:this._edges[id]}},{key:"list_transitions",value:function(){var whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return{entrances:this.list_entrances(whichState),exits:this.list_exits(whichState)}}},{key:"list_entrances",value:function(){var whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return(this._states.get(whichState)||{}).from}},{key:"list_exits",value:function(){var whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return(this._states.get(whichState)||{}).to}},{key:"probable_exits_for",value:function(whichState){var _this2=this;return(this._states.get(whichState)||{to:[]}).to.map(function(ws){return _this2.lookup_transition_for(_this2.state(),ws)}).filter(function(defined){return defined})||[]}},{key:"probabilistic_transition",value:function(){var selected=(0,_jssmUtil.weighted_rand_select)(this.probable_exits_for(this.state()));return this.transition(selected.to)}},{key:"probabilistic_walk",value:function(n){var _this3=this;return(0,_jssmUtil.seq)(n-1).map(function(i){var state_was=_this3.state();return _this3.probabilistic_transition(),state_was}).concat([this.state()])}},{key:"probabilistic_histo_walk",value:function(n){return(0,_jssmUtil.histograph)(this.probabilistic_walk(n))}},{key:"actions",value:function(){var whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state(),wstate=this._reverse_actions.get(whichState);if(wstate)return[].concat(_toConsumableArray(wstate.keys()));throw new Error("No such state "+JSON.stringify(whichState))}},{key:"list_states_having_action",value:function(whichState){var wstate=this._actions.get(whichState);if(wstate)return[].concat(_toConsumableArray(wstate.keys()));throw new Error("No such state "+JSON.stringify(whichState))}},{key:"list_exit_actions",value:function(){var _this4=this,whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return[].concat(_toConsumableArray((this._reverse_actions.get(whichState)||new Map).values())).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(){var _this5=this,whichState=arguments.length>0&&void 0!==arguments[0]?arguments[0]:this.state();return[].concat(_toConsumableArray((this._reverse_actions.get(whichState)||new Map).values())).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(whichState){return 0===this.list_entrances(whichState).length}},{key:"has_unenterables",value:function(){return this.states.some(this.is_unenterable)}},{key:"is_terminal",value:function(){return this.state_is_terminal(this.state())}},{key:"state_is_terminal",value:function(whichState){return 0===this.list_exits(whichState).length}},{key:"has_terminals",value:function(){return this.states.some(this.state_is_terminal)}},{key:"is_complete",value:function(){return this.state_is_complete(this.state())}},{key:"state_is_complete",value:function(whichState){var wstate=this._states.get(whichState);if(wstate)return wstate.complete;throw new Error("No such state "+JSON.stringify(whichState))}},{key:"has_completes",value:function(){return this.states.some(this.state_is_complete)}},{key:"action",value:function(name,newData){if(this.valid_action(name,newData)){var edge=this.current_action_edge_for(name);if(!edge)throw new Error("Should be impossible - valid_action true, no edge in current_action_edge_for, in action("+JSON.stringify(name)+"...)");return this._state=edge.to,!0}return!1}},{key:"transition",value:function(newState,newData){return!!this.valid_transition(newState,newData)&&(this._state=newState,!0)}},{key:"force_transition",value:function(newState,newData){return!!this.valid_force_transition(newState,newData)&&(this._state=newState,!0)}},{key:"current_action_for",value:function(action){var action_base=this._actions.get(action);return action_base?action_base.get(this.state()):void 0}},{key:"current_action_edge_for",value:function(action){var idx=this.current_action_for(action);return void 0!==idx?this._edges[idx]:void 0}},{key:"valid_action",value:function(action,newData){return void 0!==this.current_action_for(action)}},{key:"valid_transition",value:function(newState,newData){return void 0!==this.lookup_transition_for(this.state(),newState)}},{key:"valid_force_transition",value:function(newState,newData){return!1}},{key:"viz",value:function(){return(0,_jssmViz.viz)(this)}},{key:"set_viz_colors",value:function(){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"}}}]),machine}();exports.version="2.6.6",exports.machine=machine,exports.parse=parse,exports.seq=_jssmUtil.seq,exports.weighted_rand_select=_jssmUtil.weighted_rand_select,exports.histograph=_jssmUtil.histograph},{"./jssm-dot.js":1,"./jssm-util.js":2,"./jssm-viz.js":3}]},{},[]);
\ No newline at end of file
diff --git a/docs/lib/assets/anchor.js b/docs/lib/assets/anchor.js
new file mode 100644
index 00000000..476a8f9a
--- /dev/null
+++ b/docs/lib/assets/anchor.js
@@ -0,0 +1,198 @@
+/*!
+ * AnchorJS - v1.2.1 - 2015-07-02
+ * https://github.com/bryanbraun/anchorjs
+ * Copyright (c) 2015 Bryan Braun; Licensed MIT
+ */
+
+function AnchorJS(options) {
+  'use strict';
+  this.options = options || {};
+
+  this._applyRemainingDefaultOptions = function(opts) {
+    this.options.icon = this.options.hasOwnProperty('icon')
+      ? opts.icon
+      : '\ue9cb'; // Accepts characters (and also URLs?), like  '#', '¶', '❡', or '§'.
+    this.options.visible = this.options.hasOwnProperty('visible')
+      ? opts.visible
+      : 'hover'; // Also accepts 'always'
+    this.options.placement = this.options.hasOwnProperty('placement')
+      ? opts.placement
+      : 'right'; // Also accepts 'left'
+    this.options.class = this.options.hasOwnProperty('class') ? opts.class : ''; // Accepts any class name.
+  };
+
+  this._applyRemainingDefaultOptions(options);
+
+  this.add = function(selector) {
+    var elements,
+      elsWithIds,
+      idList,
+      elementID,
+      i,
+      roughText,
+      tidyText,
+      index,
+      count,
+      newTidyText,
+      readableID,
+      anchor;
+
+    this._applyRemainingDefaultOptions(this.options);
+
+    // Provide a sensible default selector, if none is given.
+    if (!selector) {
+      selector = 'h1, h2, h3, h4, h5, h6';
+    } else if (typeof selector !== 'string') {
+      throw new Error('The selector provided to AnchorJS was invalid.');
+    }
+
+    elements = document.querySelectorAll(selector);
+    if (elements.length === 0) {
+      return false;
+    }
+
+    this._addBaselineStyles();
+
+    // We produce a list of existing IDs so we don't generate a duplicate.
+    elsWithIds = document.querySelectorAll('[id]');
+    idList = [].map.call(elsWithIds, function assign(el) {
+      return el.id;
+    });
+
+    for (i = 0; i < elements.length; i++) {
+      if (elements[i].hasAttribute('id')) {
+        elementID = elements[i].getAttribute('id');
+      } else {
+        roughText = elements[i].textContent;
+
+        // Refine it so it makes a good ID. Strip out non-safe characters, replace
+        // spaces with hyphens, truncate to 32 characters, and make toLowerCase.
+        //
+        // Example string:                                // '⚡⚡⚡ Unicode icons are cool--but they definitely don't belong in a URL fragment.'
+        tidyText = roughText
+          .replace(/[^\w\s-]/gi, '') // ' Unicode icons are cool--but they definitely dont belong in a URL fragment'
+          .replace(/\s+/g, '-') // '-Unicode-icons-are-cool--but-they-definitely-dont-belong-in-a-URL-fragment'
+          .replace(/-{2,}/g, '-') // '-Unicode-icons-are-cool-but-they-definitely-dont-belong-in-a-URL-fragment'
+          .substring(0, 64) // '-Unicode-icons-are-cool-but-they-definitely-dont-belong-in-a-URL'
+          .replace(/^-+|-+$/gm, '') // 'Unicode-icons-are-cool-but-they-definitely-dont-belong-in-a-URL'
+          .toLowerCase(); // 'unicode-icons-are-cool-but-they-definitely-dont-belong-in-a-url'
+
+        // Compare our generated ID to existing IDs (and increment it if needed)
+        // before we add it to the page.
+        newTidyText = tidyText;
+        count = 0;
+        do {
+          if (index !== undefined) {
+            newTidyText = tidyText + '-' + count;
+          }
+          // .indexOf is supported in IE9+.
+          index = idList.indexOf(newTidyText);
+          count += 1;
+        } while (index !== -1);
+        index = undefined;
+        idList.push(newTidyText);
+
+        // Assign it to our element.
+        // Currently the setAttribute element is only supported in IE9 and above.
+        elements[i].setAttribute('id', newTidyText);
+
+        elementID = newTidyText;
+      }
+
+      readableID = elementID.replace(/-/g, ' ');
+
+      // The following code builds the following DOM structure in a more effiecient (albeit opaque) way.
+      // '<a class="anchorjs-link ' + this.options.class + '" href="#' + elementID + '" aria-label="Anchor link for: ' + readableID + '" data-anchorjs-icon="' + this.options.icon + '"></a>';
+      anchor = document.createElement('a');
+      anchor.className = 'anchorjs-link ' + this.options.class;
+      anchor.href = '#' + elementID;
+      anchor.setAttribute('aria-label', 'Anchor link for: ' + readableID);
+      anchor.setAttribute('data-anchorjs-icon', this.options.icon);
+
+      if (this.options.visible === 'always') {
+        anchor.style.opacity = '1';
+      }
+
+      if (this.options.icon === '\ue9cb') {
+        anchor.style.fontFamily = 'anchorjs-icons';
+        anchor.style.fontStyle = 'normal';
+        anchor.style.fontVariant = 'normal';
+        anchor.style.fontWeight = 'normal';
+        anchor.style.lineHeight = 1;
+      }
+
+      if (this.options.placement === 'left') {
+        anchor.style.position = 'absolute';
+        anchor.style.marginLeft = '-1em';
+        anchor.style.paddingRight = '0.5em';
+        elements[i].insertBefore(anchor, elements[i].firstChild);
+      } else {
+        // if the option provided is `right` (or anything else).
+        anchor.style.paddingLeft = '0.375em';
+        elements[i].appendChild(anchor);
+      }
+    }
+
+    return this;
+  };
+
+  this.remove = function(selector) {
+    var domAnchor, elements = document.querySelectorAll(selector);
+    for (var i = 0; i < elements.length; i++) {
+      domAnchor = elements[i].querySelector('.anchorjs-link');
+      if (domAnchor) {
+        elements[i].removeChild(domAnchor);
+      }
+    }
+    return this;
+  };
+
+  this._addBaselineStyles = function() {
+    // We don't want to add global baseline styles if they've been added before.
+    if (document.head.querySelector('style.anchorjs') !== null) {
+      return;
+    }
+
+    var style = document.createElement('style'),
+      linkRule = ' .anchorjs-link {' +
+        '   opacity: 0;' +
+        '   text-decoration: none;' +
+        '   -webkit-font-smoothing: antialiased;' +
+        '   -moz-osx-font-smoothing: grayscale;' +
+        ' }',
+      hoverRule = ' *:hover > .anchorjs-link,' +
+        ' .anchorjs-link:focus  {' +
+        '   opacity: 1;' +
+        ' }',
+      anchorjsLinkFontFace = ' @font-face {' +
+        '   font-family: "anchorjs-icons";' +
+        '   font-style: normal;' +
+        '   font-weight: normal;' + // Icon from icomoon; 10px wide & 10px tall; 2 empty below & 4 above
+        '   src: url(data:application/x-font-ttf;charset=utf-8;base64,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) format("truetype");' +
+        ' }',
+      pseudoElContent = ' [data-anchorjs-icon]::after {' +
+        '   content: attr(data-anchorjs-icon);' +
+        ' }',
+      firstStyleEl;
+
+    style.className = 'anchorjs';
+    style.appendChild(document.createTextNode('')); // Necessary for Webkit.
+
+    // We place it in the head with the other style tags, if possible, so as to
+    // not look out of place. We insert before the others so these styles can be
+    // overridden if necessary.
+    firstStyleEl = document.head.querySelector('[rel="stylesheet"], style');
+    if (firstStyleEl === undefined) {
+      document.head.appendChild(style);
+    } else {
+      document.head.insertBefore(style, firstStyleEl);
+    }
+
+    style.sheet.insertRule(linkRule, style.sheet.cssRules.length);
+    style.sheet.insertRule(hoverRule, style.sheet.cssRules.length);
+    style.sheet.insertRule(pseudoElContent, style.sheet.cssRules.length);
+    style.sheet.insertRule(anchorjsLinkFontFace, style.sheet.cssRules.length);
+  };
+}
+
+var anchors = new AnchorJS();
diff --git a/docs/lib/assets/bass-addons.css b/docs/lib/assets/bass-addons.css
new file mode 100644
index 00000000..c27e96d8
--- /dev/null
+++ b/docs/lib/assets/bass-addons.css
@@ -0,0 +1,12 @@
+.input {
+  font-family: inherit;
+  display: block;
+  width: 100%;
+  height: 2rem;
+  padding: .5rem;
+  margin-bottom: 1rem;
+  border: 1px solid #ccc;
+  font-size: .875rem;
+  border-radius: 3px;
+  box-sizing: border-box;
+}
diff --git a/docs/lib/assets/bass.css b/docs/lib/assets/bass.css
new file mode 100644
index 00000000..15e0dc9a
--- /dev/null
+++ b/docs/lib/assets/bass.css
@@ -0,0 +1,543 @@
+/*! Basscss | http://basscss.com | MIT License */
+
+.h1{ font-size: 2rem }
+.h2{ font-size: 1.5rem }
+.h3{ font-size: 1.25rem }
+.h4{ font-size: 1rem }
+.h5{ font-size: .875rem }
+.h6{ font-size: .75rem }
+
+.font-family-inherit{ font-family:inherit }
+.font-size-inherit{ font-size:inherit }
+.text-decoration-none{ text-decoration:none }
+
+.bold{ font-weight: bold; font-weight: bold }
+.regular{ font-weight:normal }
+.italic{ font-style:italic }
+.caps{ text-transform:uppercase; letter-spacing: .2em; }
+
+.left-align{ text-align:left }
+.center{ text-align:center }
+.right-align{ text-align:right }
+.justify{ text-align:justify }
+
+.nowrap{ white-space:nowrap }
+.break-word{ word-wrap:break-word }
+
+.line-height-1{ line-height: 1 }
+.line-height-2{ line-height: 1.125 }
+.line-height-3{ line-height: 1.25 }
+.line-height-4{ line-height: 1.5 }
+
+.list-style-none{ list-style:none }
+.underline{ text-decoration:underline }
+
+.truncate{
+  max-width:100%;
+  overflow:hidden;
+  text-overflow:ellipsis;
+  white-space:nowrap;
+}
+
+.list-reset{
+  list-style:none;
+  padding-left:0;
+}
+
+.inline{ display:inline }
+.block{ display:block }
+.inline-block{ display:inline-block }
+.table{ display:table }
+.table-cell{ display:table-cell }
+
+.overflow-hidden{ overflow:hidden }
+.overflow-scroll{ overflow:scroll }
+.overflow-auto{ overflow:auto }
+
+.clearfix:before,
+.clearfix:after{
+  content:" ";
+  display:table
+}
+.clearfix:after{ clear:both }
+
+.left{ float:left }
+.right{ float:right }
+
+.fit{ max-width:100% }
+
+.max-width-1{ max-width: 24rem }
+.max-width-2{ max-width: 32rem }
+.max-width-3{ max-width: 48rem }
+.max-width-4{ max-width: 64rem }
+
+.border-box{ box-sizing:border-box }
+
+.align-baseline{ vertical-align:baseline }
+.align-top{ vertical-align:top }
+.align-middle{ vertical-align:middle }
+.align-bottom{ vertical-align:bottom }
+
+.m0{ margin:0 }
+.mt0{ margin-top:0 }
+.mr0{ margin-right:0 }
+.mb0{ margin-bottom:0 }
+.ml0{ margin-left:0 }
+.mx0{ margin-left:0; margin-right:0 }
+.my0{ margin-top:0; margin-bottom:0 }
+
+.m1{ margin: .5rem }
+.mt1{ margin-top: .5rem }
+.mr1{ margin-right: .5rem }
+.mb1{ margin-bottom: .5rem }
+.ml1{ margin-left: .5rem }
+.mx1{ margin-left: .5rem; margin-right: .5rem }
+.my1{ margin-top: .5rem; margin-bottom: .5rem }
+
+.m2{ margin: 1rem }
+.mt2{ margin-top: 1rem }
+.mr2{ margin-right: 1rem }
+.mb2{ margin-bottom: 1rem }
+.ml2{ margin-left: 1rem }
+.mx2{ margin-left: 1rem; margin-right: 1rem }
+.my2{ margin-top: 1rem; margin-bottom: 1rem }
+
+.m3{ margin: 2rem }
+.mt3{ margin-top: 2rem }
+.mr3{ margin-right: 2rem }
+.mb3{ margin-bottom: 2rem }
+.ml3{ margin-left: 2rem }
+.mx3{ margin-left: 2rem; margin-right: 2rem }
+.my3{ margin-top: 2rem; margin-bottom: 2rem }
+
+.m4{ margin: 4rem }
+.mt4{ margin-top: 4rem }
+.mr4{ margin-right: 4rem }
+.mb4{ margin-bottom: 4rem }
+.ml4{ margin-left: 4rem }
+.mx4{ margin-left: 4rem; margin-right: 4rem }
+.my4{ margin-top: 4rem; margin-bottom: 4rem }
+
+.mxn1{ margin-left: -.5rem; margin-right: -.5rem; }
+.mxn2{ margin-left: -1rem; margin-right: -1rem; }
+.mxn3{ margin-left: -2rem; margin-right: -2rem; }
+.mxn4{ margin-left: -4rem; margin-right: -4rem; }
+
+.ml-auto{ margin-left:auto }
+.mr-auto{ margin-right:auto }
+.mx-auto{ margin-left:auto; margin-right:auto; }
+
+.p0{ padding:0 }
+.pt0{ padding-top:0 }
+.pr0{ padding-right:0 }
+.pb0{ padding-bottom:0 }
+.pl0{ padding-left:0 }
+.px0{ padding-left:0; padding-right:0 }
+.py0{ padding-top:0;  padding-bottom:0 }
+
+.p1{ padding: .5rem }
+.pt1{ padding-top: .5rem }
+.pr1{ padding-right: .5rem }
+.pb1{ padding-bottom: .5rem }
+.pl1{ padding-left: .5rem }
+.py1{ padding-top: .5rem; padding-bottom: .5rem }
+.px1{ padding-left: .5rem; padding-right: .5rem }
+
+.p2{ padding: 1rem }
+.pt2{ padding-top: 1rem }
+.pr2{ padding-right: 1rem }
+.pb2{ padding-bottom: 1rem }
+.pl2{ padding-left: 1rem }
+.py2{ padding-top: 1rem; padding-bottom: 1rem }
+.px2{ padding-left: 1rem; padding-right: 1rem }
+
+.p3{ padding: 2rem }
+.pt3{ padding-top: 2rem }
+.pr3{ padding-right: 2rem }
+.pb3{ padding-bottom: 2rem }
+.pl3{ padding-left: 2rem }
+.py3{ padding-top: 2rem; padding-bottom: 2rem }
+.px3{ padding-left: 2rem; padding-right: 2rem }
+
+.p4{ padding: 4rem }
+.pt4{ padding-top: 4rem }
+.pr4{ padding-right: 4rem }
+.pb4{ padding-bottom: 4rem }
+.pl4{ padding-left: 4rem }
+.py4{ padding-top: 4rem; padding-bottom: 4rem }
+.px4{ padding-left: 4rem; padding-right: 4rem }
+
+.col{
+  float:left;
+  box-sizing:border-box;
+}
+
+.col-right{
+  float:right;
+  box-sizing:border-box;
+}
+
+.col-1{
+  width:8.33333%;
+}
+
+.col-2{
+  width:16.66667%;
+}
+
+.col-3{
+  width:25%;
+}
+
+.col-4{
+  width:33.33333%;
+}
+
+.col-5{
+  width:41.66667%;
+}
+
+.col-6{
+  width:50%;
+}
+
+.col-7{
+  width:58.33333%;
+}
+
+.col-8{
+  width:66.66667%;
+}
+
+.col-9{
+  width:75%;
+}
+
+.col-10{
+  width:83.33333%;
+}
+
+.col-11{
+  width:91.66667%;
+}
+
+.col-12{
+  width:100%;
+}
+@media (min-width: 40em){
+
+  .sm-col{
+    float:left;
+    box-sizing:border-box;
+  }
+
+  .sm-col-right{
+    float:right;
+    box-sizing:border-box;
+  }
+
+  .sm-col-1{
+    width:8.33333%;
+  }
+
+  .sm-col-2{
+    width:16.66667%;
+  }
+
+  .sm-col-3{
+    width:25%;
+  }
+
+  .sm-col-4{
+    width:33.33333%;
+  }
+
+  .sm-col-5{
+    width:41.66667%;
+  }
+
+  .sm-col-6{
+    width:50%;
+  }
+
+  .sm-col-7{
+    width:58.33333%;
+  }
+
+  .sm-col-8{
+    width:66.66667%;
+  }
+
+  .sm-col-9{
+    width:75%;
+  }
+
+  .sm-col-10{
+    width:83.33333%;
+  }
+
+  .sm-col-11{
+    width:91.66667%;
+  }
+
+  .sm-col-12{
+    width:100%;
+  }
+
+}
+@media (min-width: 52em){
+
+  .md-col{
+    float:left;
+    box-sizing:border-box;
+  }
+
+  .md-col-right{
+    float:right;
+    box-sizing:border-box;
+  }
+
+  .md-col-1{
+    width:8.33333%;
+  }
+
+  .md-col-2{
+    width:16.66667%;
+  }
+
+  .md-col-3{
+    width:25%;
+  }
+
+  .md-col-4{
+    width:33.33333%;
+  }
+
+  .md-col-5{
+    width:41.66667%;
+  }
+
+  .md-col-6{
+    width:50%;
+  }
+
+  .md-col-7{
+    width:58.33333%;
+  }
+
+  .md-col-8{
+    width:66.66667%;
+  }
+
+  .md-col-9{
+    width:75%;
+  }
+
+  .md-col-10{
+    width:83.33333%;
+  }
+
+  .md-col-11{
+    width:91.66667%;
+  }
+
+  .md-col-12{
+    width:100%;
+  }
+
+}
+@media (min-width: 64em){
+
+  .lg-col{
+    float:left;
+    box-sizing:border-box;
+  }
+
+  .lg-col-right{
+    float:right;
+    box-sizing:border-box;
+  }
+
+  .lg-col-1{
+    width:8.33333%;
+  }
+
+  .lg-col-2{
+    width:16.66667%;
+  }
+
+  .lg-col-3{
+    width:25%;
+  }
+
+  .lg-col-4{
+    width:33.33333%;
+  }
+
+  .lg-col-5{
+    width:41.66667%;
+  }
+
+  .lg-col-6{
+    width:50%;
+  }
+
+  .lg-col-7{
+    width:58.33333%;
+  }
+
+  .lg-col-8{
+    width:66.66667%;
+  }
+
+  .lg-col-9{
+    width:75%;
+  }
+
+  .lg-col-10{
+    width:83.33333%;
+  }
+
+  .lg-col-11{
+    width:91.66667%;
+  }
+
+  .lg-col-12{
+    width:100%;
+  }
+
+}
+.flex{ display:-webkit-box; display:-webkit-flex; display:-ms-flexbox; display:flex }
+
+@media (min-width: 40em){
+  .sm-flex{ display:-webkit-box; display:-webkit-flex; display:-ms-flexbox; display:flex }
+}
+
+@media (min-width: 52em){
+  .md-flex{ display:-webkit-box; display:-webkit-flex; display:-ms-flexbox; display:flex }
+}
+
+@media (min-width: 64em){
+  .lg-flex{ display:-webkit-box; display:-webkit-flex; display:-ms-flexbox; display:flex }
+}
+
+.flex-column{ -webkit-box-orient:vertical; -webkit-box-direction:normal; -webkit-flex-direction:column; -ms-flex-direction:column; flex-direction:column }
+.flex-wrap{ -webkit-flex-wrap:wrap; -ms-flex-wrap:wrap; flex-wrap:wrap }
+
+.items-start{ -webkit-box-align:start; -webkit-align-items:flex-start; -ms-flex-align:start; -ms-grid-row-align:flex-start; align-items:flex-start }
+.items-end{ -webkit-box-align:end; -webkit-align-items:flex-end; -ms-flex-align:end; -ms-grid-row-align:flex-end; align-items:flex-end }
+.items-center{ -webkit-box-align:center; -webkit-align-items:center; -ms-flex-align:center; -ms-grid-row-align:center; align-items:center }
+.items-baseline{ -webkit-box-align:baseline; -webkit-align-items:baseline; -ms-flex-align:baseline; -ms-grid-row-align:baseline; align-items:baseline }
+.items-stretch{ -webkit-box-align:stretch; -webkit-align-items:stretch; -ms-flex-align:stretch; -ms-grid-row-align:stretch; align-items:stretch }
+
+.self-start{ -webkit-align-self:flex-start; -ms-flex-item-align:start; align-self:flex-start }
+.self-end{ -webkit-align-self:flex-end; -ms-flex-item-align:end; align-self:flex-end }
+.self-center{ -webkit-align-self:center; -ms-flex-item-align:center; align-self:center }
+.self-baseline{ -webkit-align-self:baseline; -ms-flex-item-align:baseline; align-self:baseline }
+.self-stretch{ -webkit-align-self:stretch; -ms-flex-item-align:stretch; align-self:stretch }
+
+.justify-start{ -webkit-box-pack:start; -webkit-justify-content:flex-start; -ms-flex-pack:start; justify-content:flex-start }
+.justify-end{ -webkit-box-pack:end; -webkit-justify-content:flex-end; -ms-flex-pack:end; justify-content:flex-end }
+.justify-center{ -webkit-box-pack:center; -webkit-justify-content:center; -ms-flex-pack:center; justify-content:center }
+.justify-between{ -webkit-box-pack:justify; -webkit-justify-content:space-between; -ms-flex-pack:justify; justify-content:space-between }
+.justify-around{ -webkit-justify-content:space-around; -ms-flex-pack:distribute; justify-content:space-around }
+
+.content-start{ -webkit-align-content:flex-start; -ms-flex-line-pack:start; align-content:flex-start }
+.content-end{ -webkit-align-content:flex-end; -ms-flex-line-pack:end; align-content:flex-end }
+.content-center{ -webkit-align-content:center; -ms-flex-line-pack:center; align-content:center }
+.content-between{ -webkit-align-content:space-between; -ms-flex-line-pack:justify; align-content:space-between }
+.content-around{ -webkit-align-content:space-around; -ms-flex-line-pack:distribute; align-content:space-around }
+.content-stretch{ -webkit-align-content:stretch; -ms-flex-line-pack:stretch; align-content:stretch }
+.flex-auto{
+  -webkit-box-flex:1;
+  -webkit-flex:1 1 auto;
+      -ms-flex:1 1 auto;
+          flex:1 1 auto;
+  min-width:0;
+  min-height:0;
+}
+.flex-none{ -webkit-box-flex:0; -webkit-flex:none; -ms-flex:none; flex:none }
+
+.order-0{ -webkit-box-ordinal-group:1; -webkit-order:0; -ms-flex-order:0; order:0 }
+.order-1{ -webkit-box-ordinal-group:2; -webkit-order:1; -ms-flex-order:1; order:1 }
+.order-2{ -webkit-box-ordinal-group:3; -webkit-order:2; -ms-flex-order:2; order:2 }
+.order-3{ -webkit-box-ordinal-group:4; -webkit-order:3; -ms-flex-order:3; order:3 }
+.order-last{ -webkit-box-ordinal-group:100000; -webkit-order:99999; -ms-flex-order:99999; order:99999 }
+
+.relative{ position:relative }
+.absolute{ position:absolute }
+.fixed{ position:fixed }
+
+.top-0{ top:0 }
+.right-0{ right:0 }
+.bottom-0{ bottom:0 }
+.left-0{ left:0 }
+
+.z1{ z-index: 1 }
+.z2{ z-index: 2 }
+.z3{ z-index: 3 }
+.z4{ z-index: 4 }
+
+.border{
+  border-style:solid;
+  border-width: 1px;
+}
+
+.border-top{
+  border-top-style:solid;
+  border-top-width: 1px;
+}
+
+.border-right{
+  border-right-style:solid;
+  border-right-width: 1px;
+}
+
+.border-bottom{
+  border-bottom-style:solid;
+  border-bottom-width: 1px;
+}
+
+.border-left{
+  border-left-style:solid;
+  border-left-width: 1px;
+}
+
+.border-none{ border:0 }
+
+.rounded{ border-radius: 3px }
+.circle{ border-radius:50% }
+
+.rounded-top{ border-radius: 3px 3px 0 0 }
+.rounded-right{ border-radius: 0 3px 3px 0 }
+.rounded-bottom{ border-radius: 0 0 3px 3px }
+.rounded-left{ border-radius: 3px 0 0 3px }
+
+.not-rounded{ border-radius:0 }
+
+.hide{
+  position:absolute !important;
+  height:1px;
+  width:1px;
+  overflow:hidden;
+  clip:rect(1px, 1px, 1px, 1px);
+}
+
+@media (max-width: 40em){
+  .xs-hide{ display:none !important }
+}
+
+@media (min-width: 40em) and (max-width: 52em){
+  .sm-hide{ display:none !important }
+}
+
+@media (min-width: 52em) and (max-width: 64em){
+  .md-hide{ display:none !important }
+}
+
+@media (min-width: 64em){
+  .lg-hide{ display:none !important }
+}
+
+.display-none{ display:none !important }
+
diff --git a/docs/lib/assets/fonts/EOT/SourceCodePro-Bold.eot b/docs/lib/assets/fonts/EOT/SourceCodePro-Bold.eot
new file mode 100755
index 00000000..d24cc39f
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diff --git a/docs/lib/assets/fonts/EOT/SourceCodePro-Regular.eot b/docs/lib/assets/fonts/EOT/SourceCodePro-Regular.eot
new file mode 100755
index 00000000..09e94730
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diff --git a/docs/lib/assets/fonts/LICENSE.txt b/docs/lib/assets/fonts/LICENSE.txt
new file mode 100755
index 00000000..d154618a
--- /dev/null
+++ b/docs/lib/assets/fonts/LICENSE.txt
@@ -0,0 +1,93 @@
+Copyright 2010, 2012 Adobe Systems Incorporated (http://www.adobe.com/), with Reserved Font Name 'Source'. All Rights Reserved. Source is a trademark of Adobe Systems Incorporated in the United States and/or other countries.
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+
+This license is copied below, and is also available with a FAQ at: http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/docs/lib/assets/fonts/OTF/SourceCodePro-Bold.otf b/docs/lib/assets/fonts/OTF/SourceCodePro-Bold.otf
new file mode 100755
index 00000000..f4e576ce
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diff --git a/docs/lib/assets/fonts/OTF/SourceCodePro-Regular.otf b/docs/lib/assets/fonts/OTF/SourceCodePro-Regular.otf
new file mode 100755
index 00000000..4e3b9d0b
Binary files /dev/null and b/docs/lib/assets/fonts/OTF/SourceCodePro-Regular.otf differ
diff --git a/docs/lib/assets/fonts/TTF/SourceCodePro-Bold.ttf b/docs/lib/assets/fonts/TTF/SourceCodePro-Bold.ttf
new file mode 100755
index 00000000..e0c576f1
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diff --git a/docs/lib/assets/fonts/TTF/SourceCodePro-Regular.ttf b/docs/lib/assets/fonts/TTF/SourceCodePro-Regular.ttf
new file mode 100755
index 00000000..437f4728
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diff --git a/docs/lib/assets/fonts/WOFF/OTF/SourceCodePro-Bold.otf.woff b/docs/lib/assets/fonts/WOFF/OTF/SourceCodePro-Bold.otf.woff
new file mode 100755
index 00000000..cf960992
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diff --git a/docs/lib/assets/fonts/WOFF/OTF/SourceCodePro-Regular.otf.woff b/docs/lib/assets/fonts/WOFF/OTF/SourceCodePro-Regular.otf.woff
new file mode 100755
index 00000000..395436eb
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diff --git a/docs/lib/assets/fonts/WOFF/TTF/SourceCodePro-Bold.ttf.woff b/docs/lib/assets/fonts/WOFF/TTF/SourceCodePro-Bold.ttf.woff
new file mode 100755
index 00000000..c65ba841
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diff --git a/docs/lib/assets/fonts/WOFF/TTF/SourceCodePro-Regular.ttf.woff b/docs/lib/assets/fonts/WOFF/TTF/SourceCodePro-Regular.ttf.woff
new file mode 100755
index 00000000..0af792a1
Binary files /dev/null and b/docs/lib/assets/fonts/WOFF/TTF/SourceCodePro-Regular.ttf.woff differ
diff --git a/docs/lib/assets/fonts/WOFF2/OTF/SourceCodePro-Bold.otf.woff2 b/docs/lib/assets/fonts/WOFF2/OTF/SourceCodePro-Bold.otf.woff2
new file mode 100755
index 00000000..cbe38353
Binary files /dev/null and b/docs/lib/assets/fonts/WOFF2/OTF/SourceCodePro-Bold.otf.woff2 differ
diff --git a/docs/lib/assets/fonts/WOFF2/OTF/SourceCodePro-Regular.otf.woff2 b/docs/lib/assets/fonts/WOFF2/OTF/SourceCodePro-Regular.otf.woff2
new file mode 100755
index 00000000..65cd591b
Binary files /dev/null and b/docs/lib/assets/fonts/WOFF2/OTF/SourceCodePro-Regular.otf.woff2 differ
diff --git a/docs/lib/assets/fonts/WOFF2/TTF/SourceCodePro-Bold.ttf.woff2 b/docs/lib/assets/fonts/WOFF2/TTF/SourceCodePro-Bold.ttf.woff2
new file mode 100755
index 00000000..b78d5235
Binary files /dev/null and b/docs/lib/assets/fonts/WOFF2/TTF/SourceCodePro-Bold.ttf.woff2 differ
diff --git a/docs/lib/assets/fonts/WOFF2/TTF/SourceCodePro-Regular.ttf.woff2 b/docs/lib/assets/fonts/WOFF2/TTF/SourceCodePro-Regular.ttf.woff2
new file mode 100755
index 00000000..18d2199e
Binary files /dev/null and b/docs/lib/assets/fonts/WOFF2/TTF/SourceCodePro-Regular.ttf.woff2 differ
diff --git a/docs/lib/assets/fonts/source-code-pro.css b/docs/lib/assets/fonts/source-code-pro.css
new file mode 100755
index 00000000..3abb4f09
--- /dev/null
+++ b/docs/lib/assets/fonts/source-code-pro.css
@@ -0,0 +1,23 @@
+@font-face{
+    font-family: 'Source Code Pro';
+    font-weight: 400;
+    font-style: normal;
+    font-stretch: normal;
+    src: url('EOT/SourceCodePro-Regular.eot') format('embedded-opentype'),
+         url('WOFF2/TTF/SourceCodePro-Regular.ttf.woff2') format('woff2'),
+         url('WOFF/OTF/SourceCodePro-Regular.otf.woff') format('woff'),
+         url('OTF/SourceCodePro-Regular.otf') format('opentype'),
+         url('TTF/SourceCodePro-Regular.ttf') format('truetype');
+}
+
+@font-face{
+    font-family: 'Source Code Pro';
+    font-weight: 700;
+    font-style: normal;
+    font-stretch: normal;
+    src: url('EOT/SourceCodePro-Bold.eot') format('embedded-opentype'),
+         url('WOFF2/TTF/SourceCodePro-Bold.ttf.woff2') format('woff2'),
+         url('WOFF/OTF/SourceCodePro-Bold.otf.woff') format('woff'),
+         url('OTF/SourceCodePro-Bold.otf') format('opentype'),
+         url('TTF/SourceCodePro-Bold.ttf') format('truetype');
+}
diff --git a/docs/lib/assets/github.css b/docs/lib/assets/github.css
new file mode 100644
index 00000000..8852abb4
--- /dev/null
+++ b/docs/lib/assets/github.css
@@ -0,0 +1,123 @@
+/*
+
+github.com style (c) Vasily Polovnyov <vast@whiteants.net>
+
+*/
+
+.hljs {
+  display: block;
+  overflow-x: auto;
+  padding: 0.5em;
+  color: #333;
+  background: #f8f8f8;
+  -webkit-text-size-adjust: none;
+}
+
+.hljs-comment,
+.diff .hljs-header,
+.hljs-javadoc {
+  color: #998;
+  font-style: italic;
+}
+
+.hljs-keyword,
+.css .rule .hljs-keyword,
+.hljs-winutils,
+.nginx .hljs-title,
+.hljs-subst,
+.hljs-request,
+.hljs-status {
+  color: #1184CE;
+}
+
+.hljs-number,
+.hljs-hexcolor,
+.ruby .hljs-constant {
+  color: #ed225d;
+}
+
+.hljs-string,
+.hljs-tag .hljs-value,
+.hljs-phpdoc,
+.hljs-dartdoc,
+.tex .hljs-formula {
+  color: #ed225d;
+}
+
+.hljs-title,
+.hljs-id,
+.scss .hljs-preprocessor {
+  color: #900;
+  font-weight: bold;
+}
+
+.hljs-list .hljs-keyword,
+.hljs-subst {
+  font-weight: normal;
+}
+
+.hljs-class .hljs-title,
+.hljs-type,
+.vhdl .hljs-literal,
+.tex .hljs-command {
+  color: #458;
+  font-weight: bold;
+}
+
+.hljs-tag,
+.hljs-tag .hljs-title,
+.hljs-rules .hljs-property,
+.django .hljs-tag .hljs-keyword {
+  color: #000080;
+  font-weight: normal;
+}
+
+.hljs-attribute,
+.hljs-variable,
+.lisp .hljs-body {
+  color: #008080;
+}
+
+.hljs-regexp {
+  color: #009926;
+}
+
+.hljs-symbol,
+.ruby .hljs-symbol .hljs-string,
+.lisp .hljs-keyword,
+.clojure .hljs-keyword,
+.scheme .hljs-keyword,
+.tex .hljs-special,
+.hljs-prompt {
+  color: #990073;
+}
+
+.hljs-built_in {
+  color: #0086b3;
+}
+
+.hljs-preprocessor,
+.hljs-pragma,
+.hljs-pi,
+.hljs-doctype,
+.hljs-shebang,
+.hljs-cdata {
+  color: #999;
+  font-weight: bold;
+}
+
+.hljs-deletion {
+  background: #fdd;
+}
+
+.hljs-addition {
+  background: #dfd;
+}
+
+.diff .hljs-change {
+  background: #0086b3;
+}
+
+.hljs-chunk {
+  color: #aaa;
+}
diff --git a/docs/lib/assets/site.js b/docs/lib/assets/site.js
new file mode 100644
index 00000000..55ada036
--- /dev/null
+++ b/docs/lib/assets/site.js
@@ -0,0 +1,110 @@
+/* global anchors */
+
+// add anchor links to headers
+anchors.options.placement = 'left';
+anchors.add('h3');
+
+// Filter UI
+var tocElements = document.getElementById('toc').getElementsByTagName('li');
+
+document.getElementById('filter-input').addEventListener('keyup', function(e) {
+  var i, element, children;
+
+  // enter key
+  if (e.keyCode === 13) {
+    // go to the first displayed item in the toc
+    for (i = 0; i < tocElements.length; i++) {
+      element = tocElements[i];
+      if (!element.classList.contains('display-none')) {
+        location.replace(element.firstChild.href);
+        return e.preventDefault();
+      }
+    }
+  }
+
+  var match = function() {
+    return true;
+  };
+
+  var value = this.value.toLowerCase();
+
+  if (!value.match(/^\s*$/)) {
+    match = function(element) {
+      return element.firstChild.innerHTML.toLowerCase().indexOf(value) !== -1;
+    };
+  }
+
+  for (i = 0; i < tocElements.length; i++) {
+    element = tocElements[i];
+    children = Array.from(element.getElementsByTagName('li'));
+    if (match(element) || children.some(match)) {
+      element.classList.remove('display-none');
+    } else {
+      element.classList.add('display-none');
+    }
+  }
+});
+
+var toggles = document.getElementsByClassName('toggle-step-sibling');
+for (var i = 0; i < toggles.length; i++) {
+  toggles[i].addEventListener('click', toggleStepSibling);
+}
+
+function toggleStepSibling() {
+  var stepSibling = this.parentNode.parentNode.parentNode.getElementsByClassName(
+    'toggle-target'
+  )[0];
+  var klass = 'display-none';
+  if (stepSibling.classList.contains(klass)) {
+    stepSibling.classList.remove(klass);
+    stepSibling.innerHTML = '▾';
+  } else {
+    stepSibling.classList.add(klass);
+    stepSibling.innerHTML = '▸';
+  }
+}
+
+var items = document.getElementsByClassName('toggle-sibling');
+for (var j = 0; j < items.length; j++) {
+  items[j].addEventListener('click', toggleSibling);
+}
+
+function toggleSibling() {
+  var stepSibling = this.parentNode.getElementsByClassName('toggle-target')[0];
+  var icon = this.getElementsByClassName('icon')[0];
+  var klass = 'display-none';
+  if (stepSibling.classList.contains(klass)) {
+    stepSibling.classList.remove(klass);
+    icon.innerHTML = '▾';
+  } else {
+    stepSibling.classList.add(klass);
+    icon.innerHTML = '▸';
+  }
+}
+
+function showHashTarget(targetId) {
+  var hashTarget = document.getElementById(targetId);
+  // new target is hidden
+  if (
+    hashTarget &&
+    hashTarget.offsetHeight === 0 &&
+    hashTarget.parentNode.parentNode.classList.contains('display-none')
+  ) {
+    hashTarget.parentNode.parentNode.classList.remove('display-none');
+  }
+}
+
+window.addEventListener('hashchange', function() {
+  showHashTarget(location.hash.substring(1));
+});
+
+showHashTarget(location.hash.substring(1));
+
+var toclinks = document.getElementsByClassName('pre-open');
+for (var k = 0; k < toclinks.length; k++) {
+  toclinks[k].addEventListener('mousedown', preOpen, false);
+}
+
+function preOpen() {
+  showHashTarget(this.hash.substring(1));
+}
diff --git a/docs/lib/assets/style.css b/docs/lib/assets/style.css
new file mode 100644
index 00000000..d7e56e04
--- /dev/null
+++ b/docs/lib/assets/style.css
@@ -0,0 +1,136 @@
+.documentation {
+  font-family: Helvetica, sans-serif;
+  color: #666;
+  line-height: 1.5;
+  background: #f5f5f5;
+}
+
+.black {
+  color: #666;
+}
+
+.bg-white {
+  background-color: #fff;
+}
+
+h4 {
+  margin: 20px 0 10px 0;
+}
+
+.documentation h3 {
+  color: #000;
+}
+
+.border-bottom {
+  border-color: #ddd;
+}
+
+a {
+  color: #1184CE;
+  text-decoration: none;
+}
+
+.documentation a[href]:hover {
+  text-decoration: underline;
+}
+
+a:hover {
+  cursor: pointer;
+}
+
+.py1-ul li {
+  padding: 5px 0;
+}
+
+.max-height-100 {
+  max-height: 100%;
+}
+
+section:target h3 {
+  font-weight:700;
+}
+
+.documentation td,
+.documentation th {
+    padding: .25rem .25rem;
+}
+
+h1:hover .anchorjs-link,
+h2:hover .anchorjs-link,
+h3:hover .anchorjs-link,
+h4:hover .anchorjs-link {
+  opacity: 1;
+}
+
+.fix-3 {
+  width: 25%;
+  max-width: 244px;
+}
+
+.fix-3 {
+  width: 25%;
+  max-width: 244px;
+}
+
+@media (min-width: 52em) {
+  .fix-margin-3 {
+    margin-left: 25%;
+  }
+}
+
+.pre, pre, code, .code {
+  font-family: Source Code Pro,Menlo,Consolas,Liberation Mono,monospace;
+  font-size: 14px;
+}
+
+.fill-light {
+  background: #F9F9F9;
+}
+
+.width2 {
+  width: 1rem;
+}
+
+.input {
+  font-family: inherit;
+  display: block;
+  width: 100%;
+  height: 2rem;
+  padding: .5rem;
+  margin-bottom: 1rem;
+  border: 1px solid #ccc;
+  font-size: .875rem;
+  border-radius: 3px;
+  box-sizing: border-box;
+}
+
+table {
+  border-collapse: collapse;
+}
+
+.prose table th,
+.prose table td {
+  text-align: left;
+  padding:8px;
+  border:1px solid #ddd;
+}
+
+.prose table th:nth-child(1) { border-right: none; }
+.prose table th:nth-child(2) { border-left: none; }
+
+.prose table {
+  border:1px solid #ddd;
+}
+
+.prose-big {
+  font-size: 18px;
+  line-height: 30px;
+}
+
+.quiet {
+  opacity: 0.7;
+}
+
+.minishadow {
+  box-shadow: 2px 2px 10px #f3f3f3;
+}
diff --git a/docs/lib/index.html b/docs/lib/index.html
new file mode 100644
index 00000000..54a60250
--- /dev/null
+++ b/docs/lib/index.html
@@ -0,0 +1,41 @@
+<!doctype html>
+<html>
+<head>
+  <meta charset='utf-8' />
+  <title>jssm 2.6.6 | Documentation</title>
+  <meta name='viewport' content='width=device-width,initial-scale=1'>
+  <link href='assets/bass.css' type='text/css' rel='stylesheet' />
+  <link href='assets/style.css' type='text/css' rel='stylesheet' />
+  <link href='assets/github.css' type='text/css' rel='stylesheet' />
+</head>
+<body class='documentation'>
+  <div class='max-width-4 mx-auto'>
+    <div class='clearfix md-mxn2'>
+      <div class='fixed xs-hide fix-3 overflow-auto max-height-100'>
+        <div class='py1 px2'>
+          <h3 class='mb0 no-anchor'>jssm</h3>
+          <div class='mb1'><code>2.6.6</code></div>
+          <input
+            placeholder='Filter'
+            id='filter-input'
+            class='col12 block input'
+            type='text' />
+          <div id='toc'>
+            <ul class='list-reset h5 py1-ul'>
+              
+            </ul>
+          </div>
+          <div class='mt1 h6 quiet'>
+            <a href='http://documentation.js.org/reading-documentation.html'>Need help reading this?</a>
+          </div>
+        </div>
+      </div>
+      <div class='fix-margin-3'>
+        
+      </div>
+    </div>
+  </div>
+  <script src='assets/anchor.js'></script>
+  <script src='assets/site.js'></script>
+</body>
+</html>
diff --git a/src/js/jssm-util.js b/src/js/jssm-util.js
index f40a8622..2b30a277 100644
--- a/src/js/jssm-util.js
+++ b/src/js/jssm-util.js
@@ -1,5 +1,5 @@
 
-const rand_select = (options : Array<any>, probability_property : string = 'probability') => {
+const weighted_rand_select = (options : Array<any>, probability_property : string = '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'); }
@@ -36,20 +36,20 @@ const histograph = (a : Array<any>) =>
 
 
 
-const sample_select = (n : number, options : Array<mixed>, probability_property : string) =>
+const weighted_sample_select = (n : number, options : Array<mixed>, probability_property : string) =>
 
-    seq(n).map(i => rand_select(options, probability_property));
+    seq(n).map(i => weighted_rand_select(options, probability_property));
 
 
 
 
 
-const histo_key = (n : number, options : Array<mixed>, probability_property : string, extract : string) =>
+const weighted_histo_key = (n : number, options : Array<mixed>, probability_property : string, extract : string) =>
 
-    histograph(sample_select(n, options, probability_property).map( (s:any) => s[extract]));
+    histograph(weighted_sample_select(n, options, probability_property).map( (s:any) => s[extract]));
 
 
 
 
 
-export { seq, histograph, histo_key, rand_select, sample_select };
+export { seq, histograph, weighted_histo_key, weighted_rand_select, weighted_sample_select };
diff --git a/src/js/jssm.js b/src/js/jssm.js
index 841b199a..329e0ded 100644
--- a/src/js/jssm.js
+++ b/src/js/jssm.js
@@ -16,8 +16,8 @@ const version = null; // replaced from package.js in build
 
 
 
-import { seq, rand_select, histograph } from './jssm-util.js';
-import { viz }                          from './jssm-viz.js';
+import { seq, weighted_rand_select, histograph } from './jssm-util.js';
+import { viz }                                   from './jssm-viz.js';
 
 const parse = require('./jssm-dot.js').parse;
 
@@ -267,7 +267,7 @@ class machine<mNT, mDT> {
   }
 
   probabilistic_transition() : boolean {
-    const selected = rand_select(this.probable_exits_for(this.state()));
+    const selected = weighted_rand_select(this.probable_exits_for(this.state()));
     return this.transition( selected.to );
   }
 
@@ -496,6 +496,6 @@ export {
   machine,
   parse,
 
-  seq, rand_select, histograph
+  seq, weighted_rand_select, histograph
 
 };
diff --git a/src/js/tests/sample_select.js b/src/js/tests/sample_select.js
new file mode 100644
index 00000000..30d7a5f4
--- /dev/null
+++ b/src/js/tests/sample_select.js
@@ -0,0 +1,22 @@
+
+import {test, describe} from 'ava-spec';
+
+const jssm = require('../../../build/jssm.es5.js');
+
+
+
+
+
+describe('sample_select/1', async it => {
+
+  // wow is this hard to meaningfully test
+  it('(0) generates []',    t => t.deepEqual([],    jssm.seq(0) ));
+
+  // stochastics would help, eg "every returned item is a member" and "in a
+  // sufficient list any positive sample size is reasonable" and "always
+  // returns the right sample size" - whargarbl todo
+
+
+});
+
+// stochable