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parser.js
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parser.js
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module.exports = (function(){
/*
* Generated by PEG.js 0.7.0.
*
* http://pegjs.majda.cz/
*/
function quote(s) {
/*
* ECMA-262, 5th ed., 7.8.4: All characters may appear literally in a
* string literal except for the closing quote character, backslash,
* carriage return, line separator, paragraph separator, and line feed.
* Any character may appear in the form of an escape sequence.
*
* For portability, we also escape escape all control and non-ASCII
* characters. Note that "\0" and "\v" escape sequences are not used
* because JSHint does not like the first and IE the second.
*/
return '"' + s
.replace(/\\/g, '\\\\') // backslash
.replace(/"/g, '\\"') // closing quote character
.replace(/\x08/g, '\\b') // backspace
.replace(/\t/g, '\\t') // horizontal tab
.replace(/\n/g, '\\n') // line feed
.replace(/\f/g, '\\f') // form feed
.replace(/\r/g, '\\r') // carriage return
.replace(/[\x00-\x07\x0B\x0E-\x1F\x80-\uFFFF]/g, escape)
+ '"';
}
var result = {
/*
* Parses the input with a generated parser. If the parsing is successfull,
* returns a value explicitly or implicitly specified by the grammar from
* which the parser was generated (see |PEG.buildParser|). If the parsing is
* unsuccessful, throws |PEG.parser.SyntaxError| describing the error.
*/
parse: function(input, startRule) {
var parseFunctions = {
"start": parse_start,
"NL": parse_NL,
"S": parse_S,
"Meta": parse_Meta,
"Syllable": parse_Syllable,
"Part": parse_Part,
"Header": parse_Header,
"Measure": parse_Measure,
"Event": parse_Event,
"Note": parse_Note,
"Properties": parse_Properties,
"Duration": parse_Duration,
"Fermata": parse_Fermata,
"Dot": parse_Dot,
"Tie": parse_Tie,
"Num": parse_Num,
"Rest": parse_Rest,
"Key": parse_Key,
"Time": parse_Time,
"Jump": parse_Jump,
"Sustain": parse_Sustain,
"Dynamics": parse_Dynamics,
"Chord": parse_Chord
};
if (startRule !== undefined) {
if (parseFunctions[startRule] === undefined) {
throw new Error("Invalid rule name: " + quote(startRule) + ".");
}
} else {
startRule = "start";
}
var pos = 0;
var reportFailures = 0;
var rightmostFailuresPos = 0;
var rightmostFailuresExpected = [];
function padLeft(input, padding, length) {
var result = input;
var padLength = length - input.length;
for (var i = 0; i < padLength; i++) {
result = padding + result;
}
return result;
}
function escape(ch) {
var charCode = ch.charCodeAt(0);
var escapeChar;
var length;
if (charCode <= 0xFF) {
escapeChar = 'x';
length = 2;
} else {
escapeChar = 'u';
length = 4;
}
return '\\' + escapeChar + padLeft(charCode.toString(16).toUpperCase(), '0', length);
}
function matchFailed(failure) {
if (pos < rightmostFailuresPos) {
return;
}
if (pos > rightmostFailuresPos) {
rightmostFailuresPos = pos;
rightmostFailuresExpected = [];
}
rightmostFailuresExpected.push(failure);
}
function parse_start() {
var result0, result1, result2;
var pos0, pos1;
pos0 = pos;
pos1 = pos;
result0 = parse_Meta();
result0 = result0 !== null ? result0 : "";
if (result0 !== null) {
result2 = parse_Part();
if (result2 !== null) {
result1 = [];
while (result2 !== null) {
result1.push(result2);
result2 = parse_Part();
}
} else {
result1 = null;
}
if (result1 !== null) {
result0 = [result0, result1];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, meta, parts) {
var ret = {
parts: parts,
meta: ""
}
if (typeof meta !== "undefined") {
ret.meta = meta
}
return ret
})(pos0, result0[0], result0[1]);
}
if (result0 === null) {
pos = pos0;
}
return result0;
}
function parse_NL() {
var result0, result1;
var pos0;
reportFailures++;
pos0 = pos;
if (input.charCodeAt(pos) === 13) {
result0 = "\r";
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"\\r\"");
}
}
result0 = result0 !== null ? result0 : "";
if (result0 !== null) {
if (input.charCodeAt(pos) === 10) {
result1 = "\n";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\"\\n\"");
}
}
if (result1 !== null) {
result0 = [result0, result1];
} else {
result0 = null;
pos = pos0;
}
} else {
result0 = null;
pos = pos0;
}
reportFailures--;
if (reportFailures === 0 && result0 === null) {
matchFailed("newline");
}
return result0;
}
function parse_S() {
var result0;
reportFailures++;
if (/^[ \r\n\t]/.test(input.charAt(pos))) {
result0 = input.charAt(pos);
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("[ \\r\\n\\t]");
}
}
reportFailures--;
if (reportFailures === 0 && result0 === null) {
matchFailed("whitespace");
}
return result0;
}
function parse_Meta() {
var result0, result1, result2, result3, result4, result5, result6;
var pos0, pos1;
reportFailures++;
pos0 = pos;
pos1 = pos;
result0 = [];
result1 = parse_S();
while (result1 !== null) {
result0.push(result1);
result1 = parse_S();
}
if (result0 !== null) {
if (input.substr(pos, 3) === "```") {
result1 = "```";
pos += 3;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\"```\"");
}
}
if (result1 === null) {
if (input.substr(pos, 3) === "---") {
result1 = "---";
pos += 3;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\"---\"");
}
}
}
if (result1 !== null) {
result2 = parse_NL();
if (result2 !== null) {
if (/^[^`\-]/.test(input.charAt(pos))) {
result4 = input.charAt(pos);
pos++;
} else {
result4 = null;
if (reportFailures === 0) {
matchFailed("[^`\\-]");
}
}
if (result4 !== null) {
result3 = [];
while (result4 !== null) {
result3.push(result4);
if (/^[^`\-]/.test(input.charAt(pos))) {
result4 = input.charAt(pos);
pos++;
} else {
result4 = null;
if (reportFailures === 0) {
matchFailed("[^`\\-]");
}
}
}
} else {
result3 = null;
}
if (result3 !== null) {
if (input.substr(pos, 3) === "```") {
result4 = "```";
pos += 3;
} else {
result4 = null;
if (reportFailures === 0) {
matchFailed("\"```\"");
}
}
if (result4 === null) {
if (input.substr(pos, 3) === "---") {
result4 = "---";
pos += 3;
} else {
result4 = null;
if (reportFailures === 0) {
matchFailed("\"---\"");
}
}
}
if (result4 !== null) {
result5 = [];
result6 = parse_S();
while (result6 !== null) {
result5.push(result6);
result6 = parse_S();
}
if (result5 !== null) {
result0 = [result0, result1, result2, result3, result4, result5];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, content) {
return content.join("")
})(pos0, result0[3]);
}
if (result0 === null) {
pos = pos0;
}
reportFailures--;
if (reportFailures === 0 && result0 === null) {
matchFailed("meta");
}
return result0;
}
function parse_Syllable() {
var result0;
reportFailures++;
if (input.substr(pos, 2) === "de") {
result0 = "de";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"de\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "do") {
result0 = "do";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"do\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "di") {
result0 = "di";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"di\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "ra") {
result0 = "ra";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"ra\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "re") {
result0 = "re";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"re\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "ri") {
result0 = "ri";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"ri\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "me") {
result0 = "me";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"me\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "mi") {
result0 = "mi";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"mi\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "fa") {
result0 = "fa";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"fa\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "fi") {
result0 = "fi";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"fi\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "se") {
result0 = "se";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"se\"");
}
}
if (result0 === null) {
if (input.substr(pos, 3) === "sol") {
result0 = "sol";
pos += 3;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"sol\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "si") {
result0 = "si";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"si\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "le") {
result0 = "le";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"le\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "la") {
result0 = "la";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"la\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "li") {
result0 = "li";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"li\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "te") {
result0 = "te";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"te\"");
}
}
if (result0 === null) {
if (input.substr(pos, 2) === "ti") {
result0 = "ti";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"ti\"");
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
reportFailures--;
if (reportFailures === 0 && result0 === null) {
matchFailed("syllable");
}
return result0;
}
function parse_Part() {
var result0, result1, result2, result3, result4;
var pos0, pos1;
reportFailures++;
pos0 = pos;
pos1 = pos;
result0 = parse_Header();
result0 = result0 !== null ? result0 : "";
if (result0 !== null) {
result1 = parse_Meta();
result1 = result1 !== null ? result1 : "";
if (result1 !== null) {
result3 = parse_Measure();
if (result3 !== null) {
result2 = [];
while (result3 !== null) {
result2.push(result3);
result3 = parse_Measure();
}
} else {
result2 = null;
}
if (result2 !== null) {
result3 = [];
result4 = parse_S();
while (result4 !== null) {
result3.push(result4);
result4 = parse_S();
}
if (result3 !== null) {
result0 = [result0, result1, result2, result3];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, name, meta, measures) {
partCount++
var ret = {}
if (typeof name !== "undefined" && name !== "") ret.name = name
else ret.name = "part " + partCount
ret.measures = measures
ret.meta = ""
if (typeof meta !== "undefined") {
ret.meta = meta
}
return ret
})(pos0, result0[0], result0[1], result0[2]);
}
if (result0 === null) {
pos = pos0;
}
reportFailures--;
if (reportFailures === 0 && result0 === null) {
matchFailed("part");
}
return result0;
}
function parse_Header() {
var result0, result1, result2, result3, result4, result5;
var pos0, pos1;
reportFailures++;
pos0 = pos;
pos1 = pos;
if (input.charCodeAt(pos) === 35) {
result1 = "#";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\"#\"");
}
}
if (result1 !== null) {
result0 = [];
while (result1 !== null) {
result0.push(result1);
if (input.charCodeAt(pos) === 35) {
result1 = "#";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\"#\"");
}
}
}
} else {
result0 = null;
}
if (result0 !== null) {
if (input.charCodeAt(pos) === 32) {
result1 = " ";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\" \"");
}
}
if (result1 !== null) {
if (/^[^\r\n]/.test(input.charAt(pos))) {
result3 = input.charAt(pos);
pos++;
} else {
result3 = null;
if (reportFailures === 0) {
matchFailed("[^\\r\\n]");
}
}
if (result3 !== null) {
result2 = [];
while (result3 !== null) {
result2.push(result3);
if (/^[^\r\n]/.test(input.charAt(pos))) {
result3 = input.charAt(pos);
pos++;
} else {
result3 = null;
if (reportFailures === 0) {
matchFailed("[^\\r\\n]");
}
}
}
} else {
result2 = null;
}
if (result2 !== null) {
result3 = parse_NL();
if (result3 !== null) {
result4 = [];
result5 = parse_S();
while (result5 !== null) {
result4.push(result5);
result5 = parse_S();
}
if (result4 !== null) {
result0 = [result0, result1, result2, result3, result4];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, name) {
return name.join("")
})(pos0, result0[2]);
}
if (result0 === null) {
pos = pos0;
}
reportFailures--;
if (reportFailures === 0 && result0 === null) {
matchFailed("header");
}
return result0;
}
function parse_Measure() {
var result0, result1, result2, result3;
var pos0, pos1, pos2;
reportFailures++;
pos0 = pos;
pos1 = pos;
result0 = [];
if (/^[ \t]/.test(input.charAt(pos))) {
result1 = input.charAt(pos);
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("[ \\t]");
}
}
while (result1 !== null) {
result0.push(result1);
if (/^[ \t]/.test(input.charAt(pos))) {
result1 = input.charAt(pos);
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("[ \\t]");
}
}
}
if (result0 !== null) {
pos2 = pos;
result2 = parse_Num();
if (result2 !== null) {
result1 = [];
while (result2 !== null) {
result1.push(result2);
result2 = parse_Num();
}
} else {
result1 = null;
}
if (result1 !== null) {
if (input.charCodeAt(pos) === 46) {
result2 = ".";
pos++;
} else {
result2 = null;
if (reportFailures === 0) {
matchFailed("\".\"");
}
}
if (result2 !== null) {
result1 = [result1, result2];
} else {
result1 = null;
pos = pos2;
}
} else {
result1 = null;
pos = pos2;
}
if (result1 === null) {
if (input.charCodeAt(pos) === 45) {
result1 = "-";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\"-\"");
}
}
}
if (result1 !== null) {
result3 = parse_Event();
if (result3 !== null) {
result2 = [];
while (result3 !== null) {
result2.push(result3);
result3 = parse_Event();
}
} else {
result2 = null;
}
if (result2 !== null) {
result3 = parse_NL();
if (result3 !== null) {
result0 = [result0, result1, result2, result3];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, events) {
return events
})(pos0, result0[2]);
}
if (result0 === null) {
pos = pos0;
}
reportFailures--;
if (reportFailures === 0 && result0 === null) {
matchFailed("measure");
}
return result0;
}
function parse_Event() {
var result0, result1, result2, result3;
var pos0, pos1, pos2;
reportFailures++;
pos0 = pos;
pos1 = pos;
if (input.charCodeAt(pos) === 32) {
result0 = " ";
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\" \"");
}
}
if (result0 !== null) {
result1 = parse_Time();
if (result1 === null) {
result1 = parse_Note();
if (result1 === null) {
result1 = parse_Chord();
if (result1 === null) {
result1 = parse_Rest();
if (result1 === null) {
result1 = parse_Key();
if (result1 === null) {
result1 = parse_Jump();
if (result1 === null) {
result1 = parse_Sustain();
if (result1 === null) {
result1 = parse_Dynamics();
}
}
}
}
}
}
}
if (result1 !== null) {
pos2 = pos;
reportFailures++;
result2 = [];
if (input.charCodeAt(pos) === 32) {
result3 = " ";
pos++;
} else {
result3 = null;
if (reportFailures === 0) {
matchFailed("\" \"");
}
}
while (result3 !== null) {
result2.push(result3);
if (input.charCodeAt(pos) === 32) {
result3 = " ";
pos++;
} else {
result3 = null;
if (reportFailures === 0) {
matchFailed("\" \"");
}
}
}
reportFailures--;
if (result2 !== null) {
result2 = "";
pos = pos2;
} else {
result2 = null;
}
if (result2 !== null) {
result0 = [result0, result1, result2];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, ev) {
return ev
})(pos0, result0[1]);
}
if (result0 === null) {
pos = pos0;
}
reportFailures--;
if (reportFailures === 0 && result0 === null) {
matchFailed("event");
}
return result0;
}
function parse_Note() {
var result0, result1;
var pos0, pos1;
reportFailures++;
pos0 = pos;
pos1 = pos;
result0 = parse_Syllable();
if (result0 !== null) {
result1 = parse_Properties();
result1 = result1 !== null ? result1 : "";
if (result1 !== null) {
result0 = [result0, result1];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, syllable, props) {
var m = {
type: "note",
syllable: syllable
}
if (typeof props === "object") {