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pegjs-gift.js
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pegjs-gift.js
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/*
* Generated by PEG.js 0.10.0.
*
* http://pegjs.org/
*/
"use strict";
function peg$subclass(child, parent) {
function ctor() { this.constructor = child; }
ctor.prototype = parent.prototype;
child.prototype = new ctor();
}
function peg$SyntaxError(message, expected, found, location) {
this.message = message;
this.expected = expected;
this.found = found;
this.location = location;
this.name = "SyntaxError";
if (typeof Error.captureStackTrace === "function") {
Error.captureStackTrace(this, peg$SyntaxError);
}
}
peg$subclass(peg$SyntaxError, Error);
peg$SyntaxError.buildMessage = function(expected, found) {
var DESCRIBE_EXPECTATION_FNS = {
literal: function(expectation) {
return "\"" + literalEscape(expectation.text) + "\"";
},
"class": function(expectation) {
var escapedParts = "",
i;
for (i = 0; i < expectation.parts.length; i++) {
escapedParts += expectation.parts[i] instanceof Array
? classEscape(expectation.parts[i][0]) + "-" + classEscape(expectation.parts[i][1])
: classEscape(expectation.parts[i]);
}
return "[" + (expectation.inverted ? "^" : "") + escapedParts + "]";
},
any: function(expectation) {
return "any character";
},
end: function(expectation) {
return "end of input";
},
other: function(expectation) {
return expectation.description;
}
};
function hex(ch) {
return ch.charCodeAt(0).toString(16).toUpperCase();
}
function literalEscape(s) {
return s
.replace(/\\/g, '\\\\')
.replace(/"/g, '\\"')
.replace(/\0/g, '\\0')
.replace(/\t/g, '\\t')
.replace(/\n/g, '\\n')
.replace(/\r/g, '\\r')
.replace(/[\x00-\x0F]/g, function(ch) { return '\\x0' + hex(ch); })
.replace(/[\x10-\x1F\x7F-\x9F]/g, function(ch) { return '\\x' + hex(ch); });
}
function classEscape(s) {
return s
.replace(/\\/g, '\\\\')
.replace(/\]/g, '\\]')
.replace(/\^/g, '\\^')
.replace(/-/g, '\\-')
.replace(/\0/g, '\\0')
.replace(/\t/g, '\\t')
.replace(/\n/g, '\\n')
.replace(/\r/g, '\\r')
.replace(/[\x00-\x0F]/g, function(ch) { return '\\x0' + hex(ch); })
.replace(/[\x10-\x1F\x7F-\x9F]/g, function(ch) { return '\\x' + hex(ch); });
}
function describeExpectation(expectation) {
return DESCRIBE_EXPECTATION_FNS[expectation.type](expectation);
}
function describeExpected(expected) {
var descriptions = new Array(expected.length),
i, j;
for (i = 0; i < expected.length; i++) {
descriptions[i] = describeExpectation(expected[i]);
}
descriptions.sort();
if (descriptions.length > 0) {
for (i = 1, j = 1; i < descriptions.length; i++) {
if (descriptions[i - 1] !== descriptions[i]) {
descriptions[j] = descriptions[i];
j++;
}
}
descriptions.length = j;
}
switch (descriptions.length) {
case 1:
return descriptions[0];
case 2:
return descriptions[0] + " or " + descriptions[1];
default:
return descriptions.slice(0, -1).join(", ")
+ ", or "
+ descriptions[descriptions.length - 1];
}
}
function describeFound(found) {
return found ? "\"" + literalEscape(found) + "\"" : "end of input";
}
return "Expected " + describeExpected(expected) + " but " + describeFound(found) + " found.";
};
function peg$parse(input, options) {
options = options !== void 0 ? options : {};
var peg$FAILED = {},
peg$startRuleFunctions = { GIFTQuestions: peg$parseGIFTQuestions },
peg$startRuleFunction = peg$parseGIFTQuestions,
peg$c0 = function(questions) { return questions; },
peg$c1 = peg$otherExpectation("Category"),
peg$c2 = "$",
peg$c3 = peg$literalExpectation("$", false),
peg$c4 = "CATEGORY:",
peg$c5 = peg$literalExpectation("CATEGORY:", false),
peg$c6 = function(cat) {return {type:"Category", title:cat}},
peg$c7 = peg$otherExpectation("Description"),
peg$c8 = function(title, text) { var question = {id: questionId, tags: questionTags, type:"Description", title:title, stem:text, hasEmbeddedAnswers:false};
resetLastQuestionTextFormat();
questionId = null; questionTags = null;
return question },
peg$c9 = "{",
peg$c10 = peg$literalExpectation("{", false),
peg$c11 = "}",
peg$c12 = peg$literalExpectation("}", false),
peg$c13 = function(title, stem1, answers, stem2) {
var embedded = (stem2 !== null);
var stem1Text = stem1 ? (stem1.text + (embedded ? " " : "")) : "";
var format = (stem1 && stem1.format) || (stem2 && stem2.format) || "moodle";
var text = stem1Text + ( embedded ? "_____ " + stem2.text : "");
var question = {type:answers.type, title:title, stem: {format: format, text: text}, hasEmbeddedAnswers:embedded};
question = processAnswers(question, answers);
resetLastQuestionTextFormat();
return question;
},
peg$c14 = peg$otherExpectation("{= match1 -> Match1\n...}"),
peg$c15 = function(matchPairs, globalFeedback) { return { type: "Matching", matchPairs:matchPairs, globalFeedback:globalFeedback }; },
peg$c16 = peg$otherExpectation("matches"),
peg$c17 = function(matchPairs) { return matchPairs },
peg$c18 = peg$otherExpectation("match"),
peg$c19 = "=",
peg$c20 = peg$literalExpectation("=", false),
peg$c21 = "->",
peg$c22 = peg$literalExpectation("->", false),
peg$c23 = function(left, right) { var matchPair = {
subquestion:{
format:(left !== null ? left.format : getLastQuestionTextFormat()),
text:(left !== null ? left.text : "")
},
subanswer:right};
return matchPair },
peg$c24 = peg$otherExpectation("{T} or {F} or {TRUE} or {FALSE}"),
peg$c25 = function(isTrue, feedback, globalFeedback) { return { type:"TF", isTrue: isTrue, feedback:feedback, globalFeedback:globalFeedback}; },
peg$c26 = function(isTrue) { return isTrue },
peg$c27 = "TRUE",
peg$c28 = peg$literalExpectation("TRUE", false),
peg$c29 = "T",
peg$c30 = peg$literalExpectation("T", false),
peg$c31 = function() {return true},
peg$c32 = "FALSE",
peg$c33 = peg$literalExpectation("FALSE", false),
peg$c34 = "F",
peg$c35 = peg$literalExpectation("F", false),
peg$c36 = function() {return false},
peg$c37 = peg$otherExpectation("{=correct choice ~incorrect choice ... }"),
peg$c38 = function(choices, globalFeedback) { return { type: "MC", choices:choices, globalFeedback:globalFeedback}; },
peg$c39 = peg$otherExpectation("Choices"),
peg$c40 = function(choices) { return choices; },
peg$c41 = peg$otherExpectation("Choice"),
peg$c42 = /^[=~]/,
peg$c43 = peg$classExpectation(["=", "~"], false, false),
peg$c44 = function(choice, feedback) { var wt = choice[2];
var txt = choice[4];
var choice = { isCorrect: (choice[0] == '='),
weight:wt,
text: txt,
feedback:feedback };
return choice },
peg$c45 = peg$otherExpectation("(weight)"),
peg$c46 = "%",
peg$c47 = peg$literalExpectation("%", false),
peg$c48 = function(percent) {
return percent;
},
peg$c49 = peg$otherExpectation("(percent)"),
peg$c50 = peg$anyExpectation(),
peg$c51 = function(percent) {
let error = 'a value between -100 and 100'
if (percent.length == 0) expected(error + ' (did you forget to put a value?)');
// the !'%' shows up as a 0th element in the percent array (of arrays), so we have to join the 1th elements
const pct = parseFloat(percent.map(innerArray => innerArray[1]).join(""));
if (pct >= -100 && pct <= 100) {
return pct;
} else {
expected(error)
}
},
peg$c52 = peg$otherExpectation("(feedback)"),
peg$c53 = "#",
peg$c54 = peg$literalExpectation("#", false),
peg$c55 = "###",
peg$c56 = peg$literalExpectation("###", false),
peg$c57 = function(feedback) { return feedback },
peg$c58 = peg$otherExpectation("Essay question { ... }"),
peg$c59 = "",
peg$c60 = function(globalFeedback) { return { type: "Essay", globalFeedback:globalFeedback}; },
peg$c61 = peg$otherExpectation("Single short answer { ... }"),
peg$c62 = function(answer, feedback, globalFeedback) { var choices = [];
choices.push({isCorrect:true, text:answer, feedback:feedback, weight:null});
return { type: "Short", choices:choices, globalFeedback:globalFeedback}; },
peg$c63 = peg$otherExpectation("{#... }"),
peg$c64 = function(numericalAnswers, globalFeedback) { return { type:"Numerical",
choices:numericalAnswers,
globalFeedback:globalFeedback}; },
peg$c65 = peg$otherExpectation("Numerical Answers"),
peg$c66 = peg$otherExpectation("Multiple Numerical Choices"),
peg$c67 = peg$otherExpectation("Numerical Choice"),
peg$c68 = function(choice, feedback) { var symbol = choice[0];
var wt = choice[1];
var txt = choice[2];
var choice = { isCorrect:(symbol == '='),
weight:wt,
text: (txt !== null ? txt : {format:getLastQuestionTextFormat(), text:'*'}), // Moodle unit tests show this, not in documentation
feedback: feedback };
return choice },
peg$c69 = peg$otherExpectation("Single numeric answer"),
peg$c70 = peg$otherExpectation("(number with range)"),
peg$c71 = ":",
peg$c72 = peg$literalExpectation(":", false),
peg$c73 = function(number, range) { var numericAnswer = {type: 'range', number: number, range:range}; return numericAnswer},
peg$c74 = peg$otherExpectation("(number with high-low)"),
peg$c75 = "..",
peg$c76 = peg$literalExpectation("..", false),
peg$c77 = function(numberLow, numberHigh) { var numericAnswer = {type: 'high-low', numberHigh: numberHigh, numberLow:numberLow}; return numericAnswer},
peg$c78 = peg$otherExpectation("(number answer)"),
peg$c79 = function(number) { var numericAnswer = {type: 'simple', number: number}; return numericAnswer},
peg$c80 = peg$otherExpectation(":: Title ::"),
peg$c81 = "::",
peg$c82 = peg$literalExpectation("::", false),
peg$c83 = function(title) { return escapedCharacterDecode(title.join('')) },
peg$c84 = peg$otherExpectation("Question stem"),
peg$c85 = function(stem) { setLastQuestionTextFormat(stem.format); // save format for question, for default of other non-formatted text
return stem },
peg$c86 = peg$otherExpectation("(blank lines separator)"),
peg$c87 = peg$otherExpectation("(blank lines)"),
peg$c88 = peg$otherExpectation("blank line"),
peg$c89 = peg$otherExpectation("(Title text)"),
peg$c90 = function(t) {return t},
peg$c91 = peg$otherExpectation("(text character)"),
peg$c92 = peg$otherExpectation("format"),
peg$c93 = "[",
peg$c94 = peg$literalExpectation("[", false),
peg$c95 = "html",
peg$c96 = peg$literalExpectation("html", false),
peg$c97 = "markdown",
peg$c98 = peg$literalExpectation("markdown", false),
peg$c99 = "plain",
peg$c100 = peg$literalExpectation("plain", false),
peg$c101 = "moodle",
peg$c102 = peg$literalExpectation("moodle", false),
peg$c103 = "]",
peg$c104 = peg$literalExpectation("]", false),
peg$c105 = function(format) {return format},
peg$c106 = peg$otherExpectation("(escape character)"),
peg$c107 = "\\",
peg$c108 = peg$literalExpectation("\\", false),
peg$c109 = peg$otherExpectation("escape sequence"),
peg$c110 = "~",
peg$c111 = peg$literalExpectation("~", false),
peg$c112 = "n",
peg$c113 = peg$literalExpectation("n", false),
peg$c114 = function(char) {
return escapedCharacters['\\' + char];
},
peg$c115 = peg$otherExpectation(""),
peg$c116 = function() {return text()},
peg$c117 = peg$otherExpectation("(formatted text excluding '->')"),
peg$c118 = function(format, txt) { return formattedText(format, txt) },
peg$c119 = peg$otherExpectation("(formatted text)"),
peg$c120 = peg$otherExpectation("(unformatted text)"),
peg$c121 = function(txt) { return removeNewLinesDuplicateSpaces(txt.join('').trim())},
peg$c122 = peg$otherExpectation("(category text)"),
peg$c123 = function(txt) { return txt.flat().join('') },
peg$c124 = function() { return parseFloat(text()); },
peg$c125 = ".",
peg$c126 = peg$literalExpectation(".", false),
peg$c127 = /^[0-9]/,
peg$c128 = peg$classExpectation([["0", "9"]], false, false),
peg$c129 = /^[+\-]/,
peg$c130 = peg$classExpectation(["+", "-"], false, false),
peg$c131 = "####",
peg$c132 = peg$literalExpectation("####", false),
peg$c133 = function(rt) {return rt;},
peg$c134 = peg$otherExpectation("(single line whitespace)"),
peg$c135 = peg$otherExpectation("(multiple line whitespace)"),
peg$c136 = " ",
peg$c137 = peg$literalExpectation(" ", false),
peg$c138 = function() {questionId = null; questionTags = null},
peg$c139 = peg$otherExpectation("(comment)"),
peg$c140 = "//",
peg$c141 = peg$literalExpectation("//", false),
peg$c142 = /^[^\n\r]/,
peg$c143 = peg$classExpectation(["\n", "\r"], true, false),
peg$c144 = function(p) {return null},
peg$c145 = function(p) {
var comment = p.join("");
// use a regex like the Moodle parser
var idIsFound = comment.match(/\[id:([^\x00-\x1F\x7F]+?)]/);
if(idIsFound) {
questionId = idIsFound[1].trim().replace('\\]', ']');
}
// use a regex like the Moodle parser
var tagMatches = comment.matchAll(/\[tag:([^\x00-\x1F\x7F]+?)]/g);
Array.from(
comment.matchAll(/\[tag:([^\x00-\x1F\x7F]+?)]/g),
function(m) { return m[1] })
.forEach(function(element) {
if(!questionTags) questionTags = [];
questionTags.push(element);
});
return null // hacking, must "reset" values each time a partial match happens
},
peg$c146 = peg$otherExpectation("(space)"),
peg$c147 = "\t",
peg$c148 = peg$literalExpectation("\t", false),
peg$c149 = peg$otherExpectation("(end of line)"),
peg$c150 = "\r\n",
peg$c151 = peg$literalExpectation("\r\n", false),
peg$c152 = "\n",
peg$c153 = peg$literalExpectation("\n", false),
peg$c154 = "\r",
peg$c155 = peg$literalExpectation("\r", false),
peg$c156 = function() { return "EOF"; },
peg$currPos = 0,
peg$savedPos = 0,
peg$posDetailsCache = [{ line: 1, column: 1 }],
peg$maxFailPos = 0,
peg$maxFailExpected = [],
peg$silentFails = 0,
peg$result;
if ("startRule" in options) {
if (!(options.startRule in peg$startRuleFunctions)) {
throw new Error("Can't start parsing from rule \"" + options.startRule + "\".");
}
peg$startRuleFunction = peg$startRuleFunctions[options.startRule];
}
function text() {
return input.substring(peg$savedPos, peg$currPos);
}
function location() {
return peg$computeLocation(peg$savedPos, peg$currPos);
}
function expected(description, location) {
location = location !== void 0 ? location : peg$computeLocation(peg$savedPos, peg$currPos)
throw peg$buildStructuredError(
[peg$otherExpectation(description)],
input.substring(peg$savedPos, peg$currPos),
location
);
}
function error(message, location) {
location = location !== void 0 ? location : peg$computeLocation(peg$savedPos, peg$currPos)
throw peg$buildSimpleError(message, location);
}
function peg$literalExpectation(text, ignoreCase) {
return { type: "literal", text: text, ignoreCase: ignoreCase };
}
function peg$classExpectation(parts, inverted, ignoreCase) {
return { type: "class", parts: parts, inverted: inverted, ignoreCase: ignoreCase };
}
function peg$anyExpectation() {
return { type: "any" };
}
function peg$endExpectation() {
return { type: "end" };
}
function peg$otherExpectation(description) {
return { type: "other", description: description };
}
function peg$computePosDetails(pos) {
var details = peg$posDetailsCache[pos], p;
if (details) {
return details;
} else {
p = pos - 1;
while (!peg$posDetailsCache[p]) {
p--;
}
details = peg$posDetailsCache[p];
details = {
line: details.line,
column: details.column
};
while (p < pos) {
if (input.charCodeAt(p) === 10) {
details.line++;
details.column = 1;
} else {
details.column++;
}
p++;
}
peg$posDetailsCache[pos] = details;
return details;
}
}
function peg$computeLocation(startPos, endPos) {
var startPosDetails = peg$computePosDetails(startPos),
endPosDetails = peg$computePosDetails(endPos);
return {
start: {
offset: startPos,
line: startPosDetails.line,
column: startPosDetails.column
},
end: {
offset: endPos,
line: endPosDetails.line,
column: endPosDetails.column
}
};
}
function peg$fail(expected) {
if (peg$currPos < peg$maxFailPos) { return; }
if (peg$currPos > peg$maxFailPos) {
peg$maxFailPos = peg$currPos;
peg$maxFailExpected = [];
}
peg$maxFailExpected.push(expected);
}
function peg$buildSimpleError(message, location) {
return new peg$SyntaxError(message, null, null, location);
}
function peg$buildStructuredError(expected, found, location) {
return new peg$SyntaxError(
peg$SyntaxError.buildMessage(expected, found),
expected,
found,
location
);
}
function peg$parseGIFTQuestions() {
var s0, s1, s2, s3;
s0 = peg$currPos;
s1 = [];
s2 = peg$parseCategory();
if (s2 === peg$FAILED) {
s2 = peg$parseDescription();
if (s2 === peg$FAILED) {
s2 = peg$parseQuestion();
}
}
if (s2 !== peg$FAILED) {
while (s2 !== peg$FAILED) {
s1.push(s2);
s2 = peg$parseCategory();
if (s2 === peg$FAILED) {
s2 = peg$parseDescription();
if (s2 === peg$FAILED) {
s2 = peg$parseQuestion();
}
}
}
} else {
s1 = peg$FAILED;
}
if (s1 !== peg$FAILED) {
s2 = peg$parse_();
if (s2 !== peg$FAILED) {
s3 = peg$parse__();
if (s3 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$c0(s1);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
return s0;
}
function peg$parseCategory() {
var s0, s1, s2, s3, s4, s5, s6, s7;
peg$silentFails++;
s0 = peg$currPos;
s1 = peg$parseResetIdsTags();
if (s1 !== peg$FAILED) {
s2 = peg$parse__();
if (s2 !== peg$FAILED) {
if (input.charCodeAt(peg$currPos) === 36) {
s3 = peg$c2;
peg$currPos++;
} else {
s3 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c3); }
}
if (s3 !== peg$FAILED) {
if (input.substr(peg$currPos, 9) === peg$c4) {
s4 = peg$c4;
peg$currPos += 9;
} else {
s4 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c5); }
}
if (s4 !== peg$FAILED) {
s5 = peg$parse_();
if (s5 !== peg$FAILED) {
s6 = peg$parseCategoryText();
if (s6 !== peg$FAILED) {
s7 = peg$parseQuestionSeparator();
if (s7 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$c6(s6);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
peg$silentFails--;
if (s0 === peg$FAILED) {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c1); }
}
return s0;
}
function peg$parseDescription() {
var s0, s1, s2, s3, s4, s5, s6, s7;
peg$silentFails++;
s0 = peg$currPos;
s1 = peg$parseResetIdsTags();
if (s1 !== peg$FAILED) {
s2 = peg$parse__();
if (s2 !== peg$FAILED) {
s3 = [];
s4 = peg$parseTagComment();
while (s4 !== peg$FAILED) {
s3.push(s4);
s4 = peg$parseTagComment();
}
if (s3 !== peg$FAILED) {
s4 = peg$parseQuestionTitle();
if (s4 === peg$FAILED) {
s4 = null;
}
if (s4 !== peg$FAILED) {
s5 = peg$parse_();
if (s5 !== peg$FAILED) {
s6 = peg$parseQuestionStem();
if (s6 !== peg$FAILED) {
s7 = peg$parseQuestionSeparator();
if (s7 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$c8(s4, s6);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
peg$silentFails--;
if (s0 === peg$FAILED) {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c7); }
}
return s0;
}
function peg$parseQuestion() {
var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15;
s0 = peg$currPos;
s1 = peg$parseResetIdsTags();
if (s1 !== peg$FAILED) {
s2 = peg$parse__();
if (s2 !== peg$FAILED) {
s3 = [];
s4 = peg$parseTagComment();
while (s4 !== peg$FAILED) {
s3.push(s4);
s4 = peg$parseTagComment();
}
if (s3 !== peg$FAILED) {
s4 = peg$parseQuestionTitle();
if (s4 === peg$FAILED) {
s4 = null;
}
if (s4 !== peg$FAILED) {
s5 = peg$parse_();
if (s5 !== peg$FAILED) {
s6 = peg$parseQuestionStem();
if (s6 === peg$FAILED) {
s6 = null;
}
if (s6 !== peg$FAILED) {
s7 = peg$parse_();
if (s7 !== peg$FAILED) {
if (input.charCodeAt(peg$currPos) === 123) {
s8 = peg$c9;
peg$currPos++;
} else {
s8 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c10); }
}
if (s8 !== peg$FAILED) {
s9 = peg$parse_();
if (s9 !== peg$FAILED) {
s10 = peg$parseMatchingAnswers();
if (s10 === peg$FAILED) {
s10 = peg$parseTrueFalseAnswer();
if (s10 === peg$FAILED) {
s10 = peg$parseMCAnswers();
if (s10 === peg$FAILED) {
s10 = peg$parseNumericalAnswerType();
if (s10 === peg$FAILED) {
s10 = peg$parseSingleCorrectShortAnswer();
if (s10 === peg$FAILED) {
s10 = peg$parseEssayAnswer();
}
}
}
}
}
if (s10 !== peg$FAILED) {
s11 = peg$parse_();
if (s11 !== peg$FAILED) {
if (input.charCodeAt(peg$currPos) === 125) {
s12 = peg$c11;
peg$currPos++;
} else {
s12 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c12); }
}
if (s12 !== peg$FAILED) {
s13 = peg$parse_();
if (s13 !== peg$FAILED) {
s14 = peg$parseComment();
if (s14 === peg$FAILED) {
s14 = peg$parseQuestionStem();
}
if (s14 === peg$FAILED) {
s14 = null;
}
if (s14 !== peg$FAILED) {
s15 = peg$parseQuestionSeparator();
if (s15 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$c13(s4, s6, s10, s14);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
return s0;
}
function peg$parseMatchingAnswers() {
var s0, s1, s2, s3, s4;
peg$silentFails++;
s0 = peg$currPos;
s1 = peg$parseMatches();
if (s1 !== peg$FAILED) {
s2 = peg$parse_();
if (s2 !== peg$FAILED) {
s3 = peg$parseGlobalFeedback();
if (s3 === peg$FAILED) {
s3 = null;
}
if (s3 !== peg$FAILED) {
s4 = peg$parse_();
if (s4 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$c15(s1, s3);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
peg$silentFails--;
if (s0 === peg$FAILED) {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c14); }
}
return s0;
}
function peg$parseMatches() {
var s0, s1, s2;
peg$silentFails++;
s0 = peg$currPos;
s1 = [];
s2 = peg$parseMatch();
if (s2 !== peg$FAILED) {
while (s2 !== peg$FAILED) {
s1.push(s2);
s2 = peg$parseMatch();
}
} else {
s1 = peg$FAILED;
}
if (s1 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$c17(s1);
}
s0 = s1;
peg$silentFails--;
if (s0 === peg$FAILED) {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c16); }
}
return s0;
}
function peg$parseMatch() {
var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9;
peg$silentFails++;
s0 = peg$currPos;
s1 = peg$parse_();
if (s1 !== peg$FAILED) {
if (input.charCodeAt(peg$currPos) === 61) {
s2 = peg$c19;
peg$currPos++;
} else {
s2 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c20); }
}
if (s2 !== peg$FAILED) {
s3 = peg$parse_();
if (s3 !== peg$FAILED) {
s4 = peg$parseMatchRichText();
if (s4 === peg$FAILED) {
s4 = null;
}
if (s4 !== peg$FAILED) {
s5 = peg$parse_();
if (s5 !== peg$FAILED) {
if (input.substr(peg$currPos, 2) === peg$c21) {
s6 = peg$c21;
peg$currPos += 2;
} else {
s6 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c22); }
}
if (s6 !== peg$FAILED) {
s7 = peg$parse_();
if (s7 !== peg$FAILED) {
s8 = peg$parsePlainText();
if (s8 !== peg$FAILED) {
s9 = peg$parse_();
if (s9 !== peg$FAILED) {
peg$savedPos = s0;
s1 = peg$c23(s4, s8);
s0 = s1;
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
} else {
peg$currPos = s0;
s0 = peg$FAILED;
}
peg$silentFails--;
if (s0 === peg$FAILED) {
s1 = peg$FAILED;
if (peg$silentFails === 0) { peg$fail(peg$c18); }
}
return s0;
}
function peg$parseTrueFalseAnswer() {