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scheem.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,
"quote": parse_quote,
"expression": parse_expression,
"validchar": parse_validchar,
"string": parse_string,
"atom": parse_atom,
"_": parse__,
"ws": parse_ws,
"comment": parse_comment,
"NumericLiteral": parse_NumericLiteral,
"DecimalLiteral": parse_DecimalLiteral,
"DecimalIntegerLiteral": parse_DecimalIntegerLiteral,
"DecimalDigits": parse_DecimalDigits,
"DecimalDigit": parse_DecimalDigit,
"NonZeroDigit": parse_NonZeroDigit,
"ExponentPart": parse_ExponentPart,
"ExponentIndicator": parse_ExponentIndicator,
"SignedInteger": parse_SignedInteger,
"HexIntegerLiteral": parse_HexIntegerLiteral,
"HexDigit": parse_HexDigit
};
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;
var pos0;
pos0 = pos;
result1 = parse_expression();
if (result1 !== null) {
result0 = [];
while (result1 !== null) {
result0.push(result1);
result1 = parse_expression();
}
} else {
result0 = null;
}
if (result0 !== null) {
result0 = (function(offset, e) { if (e.length === 1) {return e[0]; } else { e.unshift('begin'); return e;} })(pos0, result0);
}
if (result0 === null) {
pos = pos0;
}
return result0;
}
function parse_quote() {
var result0, result1, result2, result3;
var pos0, pos1;
pos0 = pos;
pos1 = pos;
result0 = parse__();
if (result0 !== null) {
if (input.charCodeAt(pos) === 39) {
result1 = "'";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\"'\"");
}
}
if (result1 !== null) {
result2 = parse__();
if (result2 !== null) {
result3 = parse_expression();
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, e) {return ["quote", e]})(pos0, result0[3]);
}
if (result0 === null) {
pos = pos0;
}
return result0;
}
function parse_expression() {
var result0, result1, result2, result3, result4, result5, result6;
var pos0, pos1;
pos0 = pos;
pos1 = pos;
result0 = parse__();
if (result0 !== null) {
result1 = parse_NumericLiteral();
if (result1 !== null) {
result0 = [result0, result1];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, n) {return n})(pos0, result0[1]);
}
if (result0 === null) {
pos = pos0;
}
if (result0 === null) {
pos0 = pos;
pos1 = pos;
result0 = parse__();
if (result0 !== null) {
result1 = parse_atom();
if (result1 !== null) {
result2 = parse__();
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, a) {return a})(pos0, result0[1]);
}
if (result0 === null) {
pos = pos0;
}
if (result0 === null) {
pos0 = pos;
pos1 = pos;
result0 = parse__();
if (result0 !== null) {
result1 = parse_string();
if (result1 !== null) {
result0 = [result0, result1];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, s) {return s})(pos0, result0[1]);
}
if (result0 === null) {
pos = pos0;
}
if (result0 === null) {
pos0 = pos;
pos1 = pos;
result0 = parse__();
if (result0 !== null) {
result1 = parse_quote();
if (result1 !== null) {
result0 = [result0, result1];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, q) {return q})(pos0, result0[1]);
}
if (result0 === null) {
pos = pos0;
}
if (result0 === null) {
pos0 = pos;
pos1 = pos;
result0 = parse__();
if (result0 !== null) {
if (input.charCodeAt(pos) === 40) {
result1 = "(";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\"(\"");
}
}
if (result1 !== null) {
result2 = parse__();
if (result2 !== null) {
result4 = parse_expression();
if (result4 !== null) {
result3 = [];
while (result4 !== null) {
result3.push(result4);
result4 = parse_expression();
}
} else {
result3 = null;
}
if (result3 !== null) {
result4 = parse__();
if (result4 !== null) {
if (input.charCodeAt(pos) === 41) {
result5 = ")";
pos++;
} else {
result5 = null;
if (reportFailures === 0) {
matchFailed("\")\"");
}
}
if (result5 !== null) {
result6 = parse__();
if (result6 !== null) {
result0 = [result0, result1, result2, result3, result4, result5, result6];
} 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;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, e) {return e})(pos0, result0[3]);
}
if (result0 === null) {
pos = pos0;
}
}
}
}
}
return result0;
}
function parse_validchar() {
var result0;
if (/^[0-9a-zA-Z_?!+=<>@#$%^&*\/.\-]/.test(input.charAt(pos))) {
result0 = input.charAt(pos);
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("[0-9a-zA-Z_?!+=<>@#$%^&*\\/.\\-]");
}
}
return result0;
}
function parse_string() {
var result0, result1, result2, result3;
var pos0, pos1;
pos0 = pos;
pos1 = pos;
result0 = parse__();
if (result0 !== null) {
if (input.charCodeAt(pos) === 34) {
result1 = "\"";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\"\\\"\"");
}
}
if (result1 !== null) {
result2 = [];
if (/^[^"\n\r]/.test(input.charAt(pos))) {
result3 = input.charAt(pos);
pos++;
} else {
result3 = null;
if (reportFailures === 0) {
matchFailed("[^\"\\n\\r]");
}
}
while (result3 !== null) {
result2.push(result3);
if (/^[^"\n\r]/.test(input.charAt(pos))) {
result3 = input.charAt(pos);
pos++;
} else {
result3 = null;
if (reportFailures === 0) {
matchFailed("[^\"\\n\\r]");
}
}
}
if (result2 !== null) {
if (input.charCodeAt(pos) === 34) {
result3 = "\"";
pos++;
} else {
result3 = null;
if (reportFailures === 0) {
matchFailed("\"\\\"\"");
}
}
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, s) {return s.join(""); })(pos0, result0[2]);
}
if (result0 === null) {
pos = pos0;
}
return result0;
}
function parse_atom() {
var result0, result1;
var pos0;
pos0 = pos;
result1 = parse_validchar();
if (result1 !== null) {
result0 = [];
while (result1 !== null) {
result0.push(result1);
result1 = parse_validchar();
}
} else {
result0 = null;
}
if (result0 !== null) {
result0 = (function(offset, chars) {return chars.join(""); })(pos0, result0);
}
if (result0 === null) {
pos = pos0;
}
return result0;
}
function parse__() {
var result0, result1, result2, result3;
var pos0;
pos0 = pos;
result0 = [];
result1 = parse_ws();
while (result1 !== null) {
result0.push(result1);
result1 = parse_ws();
}
if (result0 !== null) {
result2 = parse_comment();
if (result2 !== null) {
result1 = [];
while (result2 !== null) {
result1.push(result2);
result2 = parse_comment();
}
} else {
result1 = null;
}
if (result1 !== null) {
result2 = [];
result3 = parse_ws();
while (result3 !== null) {
result2.push(result3);
result3 = parse_ws();
}
if (result2 !== null) {
result0 = [result0, result1, result2];
} else {
result0 = null;
pos = pos0;
}
} else {
result0 = null;
pos = pos0;
}
} else {
result0 = null;
pos = pos0;
}
if (result0 === null) {
result0 = [];
result1 = parse_ws();
while (result1 !== null) {
result0.push(result1);
result1 = parse_ws();
}
}
return result0;
}
function parse_ws() {
var result0;
if (/^[ \t\r\n]/.test(input.charAt(pos))) {
result0 = input.charAt(pos);
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("[ \\t\\r\\n]");
}
}
return result0;
}
function parse_comment() {
var result0, result1, result2;
var pos0;
pos0 = pos;
if (input.substr(pos, 2) === ";;") {
result0 = ";;";
pos += 2;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\";;\"");
}
}
if (result0 !== null) {
result1 = [];
if (/^[^\n\r]/.test(input.charAt(pos))) {
result2 = input.charAt(pos);
pos++;
} else {
result2 = null;
if (reportFailures === 0) {
matchFailed("[^\\n\\r]");
}
}
while (result2 !== null) {
result1.push(result2);
if (/^[^\n\r]/.test(input.charAt(pos))) {
result2 = input.charAt(pos);
pos++;
} else {
result2 = null;
if (reportFailures === 0) {
matchFailed("[^\\n\\r]");
}
}
}
if (result1 !== null) {
result0 = [result0, result1];
} else {
result0 = null;
pos = pos0;
}
} else {
result0 = null;
pos = pos0;
}
return result0;
}
function parse_NumericLiteral() {
var result0;
var pos0;
reportFailures++;
pos0 = pos;
result0 = parse_HexIntegerLiteral();
if (result0 === null) {
result0 = parse_DecimalLiteral();
}
if (result0 !== null) {
result0 = (function(offset, literal) {
return literal;
})(pos0, result0);
}
if (result0 === null) {
pos = pos0;
}
reportFailures--;
if (reportFailures === 0 && result0 === null) {
matchFailed("number");
}
return result0;
}
function parse_DecimalLiteral() {
var result0, result1, result2, result3;
var pos0, pos1;
pos0 = pos;
pos1 = pos;
result0 = parse_DecimalIntegerLiteral();
if (result0 !== null) {
if (input.charCodeAt(pos) === 46) {
result1 = ".";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\".\"");
}
}
if (result1 !== null) {
result2 = parse_DecimalDigits();
result2 = result2 !== null ? result2 : "";
if (result2 !== null) {
result3 = parse_ExponentPart();
result3 = result3 !== null ? result3 : "";
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, before, after, exponent) {
return parseFloat(before + "." + after + exponent);
})(pos0, result0[0], result0[2], result0[3]);
}
if (result0 === null) {
pos = pos0;
}
if (result0 === null) {
pos0 = pos;
pos1 = pos;
if (input.charCodeAt(pos) === 46) {
result0 = ".";
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\".\"");
}
}
if (result0 !== null) {
result1 = parse_DecimalDigits();
if (result1 !== null) {
result2 = parse_ExponentPart();
result2 = result2 !== null ? result2 : "";
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, after, exponent) {
return parseFloat("." + after + exponent);
})(pos0, result0[1], result0[2]);
}
if (result0 === null) {
pos = pos0;
}
if (result0 === null) {
pos0 = pos;
pos1 = pos;
result0 = parse_DecimalIntegerLiteral();
if (result0 !== null) {
result1 = parse_ExponentPart();
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, before, exponent) {
return parseFloat(before + exponent);
})(pos0, result0[0], result0[1]);
}
if (result0 === null) {
pos = pos0;
}
}
}
return result0;
}
function parse_DecimalIntegerLiteral() {
var result0, result1;
var pos0, pos1;
if (input.charCodeAt(pos) === 48) {
result0 = "0";
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"0\"");
}
}
if (result0 === null) {
pos0 = pos;
pos1 = pos;
result0 = parse_NonZeroDigit();
if (result0 !== null) {
result1 = parse_DecimalDigits();
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, digit, digits) { return digit + digits; })(pos0, result0[0], result0[1]);
}
if (result0 === null) {
pos = pos0;
}
}
return result0;
}
function parse_DecimalDigits() {
var result0, result1;
var pos0;
pos0 = pos;
result1 = parse_DecimalDigit();
if (result1 !== null) {
result0 = [];
while (result1 !== null) {
result0.push(result1);
result1 = parse_DecimalDigit();
}
} else {
result0 = null;
}
if (result0 !== null) {
result0 = (function(offset, digits) { return digits.join(""); })(pos0, result0);
}
if (result0 === null) {
pos = pos0;
}
return result0;
}
function parse_DecimalDigit() {
var result0;
if (/^[0-9]/.test(input.charAt(pos))) {
result0 = input.charAt(pos);
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("[0-9]");
}
}
return result0;
}
function parse_NonZeroDigit() {
var result0;
if (/^[1-9]/.test(input.charAt(pos))) {
result0 = input.charAt(pos);
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("[1-9]");
}
}
return result0;
}
function parse_ExponentPart() {
var result0, result1;
var pos0, pos1;
pos0 = pos;
pos1 = pos;
result0 = parse_ExponentIndicator();
if (result0 !== null) {
result1 = parse_SignedInteger();
if (result1 !== null) {
result0 = [result0, result1];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, indicator, integer) {
return indicator + integer;
})(pos0, result0[0], result0[1]);
}
if (result0 === null) {
pos = pos0;
}
return result0;
}
function parse_ExponentIndicator() {
var result0;
if (/^[eE]/.test(input.charAt(pos))) {
result0 = input.charAt(pos);
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("[eE]");
}
}
return result0;
}
function parse_SignedInteger() {
var result0, result1;
var pos0, pos1;
pos0 = pos;
pos1 = pos;
if (/^[\-+]/.test(input.charAt(pos))) {
result0 = input.charAt(pos);
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("[\\-+]");
}
}
result0 = result0 !== null ? result0 : "";
if (result0 !== null) {
result1 = parse_DecimalDigits();
if (result1 !== null) {
result0 = [result0, result1];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset, sign, digits) { return sign + digits; })(pos0, result0[0], result0[1]);
}
if (result0 === null) {
pos = pos0;
}
return result0;
}
function parse_HexIntegerLiteral() {
var result0, result1, result2, result3;
var pos0, pos1;
pos0 = pos;
pos1 = pos;
if (input.charCodeAt(pos) === 48) {
result0 = "0";
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("\"0\"");
}
}
if (result0 !== null) {
if (/^[xX]/.test(input.charAt(pos))) {
result1 = input.charAt(pos);
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("[xX]");
}
}
if (result1 !== null) {
result3 = parse_HexDigit();
if (result3 !== null) {
result2 = [];
while (result3 !== null) {
result2.push(result3);
result3 = parse_HexDigit();
}
} 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, digits) { return parseInt("0x" + digits.join("")); })(pos0, result0[2]);
}
if (result0 === null) {
pos = pos0;
}
return result0;
}
function parse_HexDigit() {
var result0;
if (/^[0-9a-fA-F]/.test(input.charAt(pos))) {
result0 = input.charAt(pos);
pos++;
} else {
result0 = null;
if (reportFailures === 0) {
matchFailed("[0-9a-fA-F]");
}
}
return result0;
}
function cleanupExpected(expected) {
expected.sort();
var lastExpected = null;