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json5.js
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json5.js
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// This is a generated file. Do not edit.
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var ID_Continue = /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u0860-\u086A\u08A0-\u08B4\u08B6-\u08BD\u08D4-\u08E1\u08E3-\u0963\u0966-\u096F\u0971-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u09FC\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0AF9-\u0AFF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58-\u0C5A\u0C60-\u0C63\u0C66-\u0C6F\u0C80-\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D00-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D54-\u0D57\u0D5F-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1C80-\u1C88\u1CD0-\u1CD2\u1CD4-\u1CF9\u1D00-\u1DF9\u1DFB-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312E\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FEA\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-\uA827\uA840-\uA873\uA880-\uA8C5\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA8FD\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE2F\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF2D-\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDCB0-\uDCD3\uDCD8-\uDCFB\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDCA-\uDDCC\uDDD0-\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE37\uDE3E\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEEA\uDEF0-\uDEF9\uDF00-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF50\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC00-\uDC4A\uDC50-\uDC59\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-\uDDC0\uDDD8-\uDDDD\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-\uDEC9\uDF00-\uDF19\uDF1D-\uDF2B\uDF30-\uDF39]|\uD806[\uDCA0-\uDCE9\uDCFF\uDE00-\uDE3E\uDE47\uDE50-\uDE83\uDE86-\uDE99\uDEC0-\uDEF8]|\uD807[\uDC00-\uDC08\uDC0A-\uDC36\uDC38-\uDC40\uDC50-\uDC59\uDC72-\uDC8F\uDC92-\uDCA7\uDCA9-\uDCB6\uDD00-\uDD06\uDD08\uDD09\uDD0B-\uDD36\uDD3A\uDD3C\uDD3D\uDD3F-\uDD47\uDD50-\uDD59]|\uD808[\uDC00-\uDF99]|\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD81C-\uD820\uD840-\uD868\uD86A-\uD86C\uD86F-\uD872\uD874-\uD879][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-\uDF7E\uDF8F-\uDF9F\uDFE0\uDFE1]|\uD821[\uDC00-\uDFEC]|\uD822[\uDC00-\uDEF2]|\uD82C[\uDC00-\uDD1E\uDD70-\uDEFB]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD836[\uDE00-\uDE36\uDE3B-\uDE6C\uDE75\uDE84\uDE9B-\uDE9F\uDEA1-\uDEAF]|\uD838[\uDC00-\uDC06\uDC08-\uDC18\uDC1B-\uDC21\uDC23\uDC24\uDC26-\uDC2A]|\uD83A[\uDC00-\uDCC4\uDCD0-\uDCD6\uDD00-\uDD4A\uDD50-\uDD59]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1\uDEB0-\uDFFF]|\uD87A[\uDC00-\uDFE0]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF]/;
var unicode = {
Space_Separator: Space_Separator,
ID_Start: ID_Start,
ID_Continue: ID_Continue
};
var util = {
isSpaceSeparator (c) {
return typeof c === 'string' && unicode.Space_Separator.test(c)
},
isIdStartChar (c) {
return typeof c === 'string' && (
(c >= 'a' && c <= 'z') ||
(c >= 'A' && c <= 'Z') ||
(c === '$') || (c === '_') ||
unicode.ID_Start.test(c)
)
},
isIdContinueChar (c) {
return typeof c === 'string' && (
(c >= 'a' && c <= 'z') ||
(c >= 'A' && c <= 'Z') ||
(c >= '0' && c <= '9') ||
(c === '$') || (c === '_') ||
(c === '\u200C') || (c === '\u200D') ||
unicode.ID_Continue.test(c)
)
},
isDigit (c) {
return typeof c === 'string' && /[0-9]/.test(c)
},
isHexDigit (c) {
return typeof c === 'string' && /[0-9A-Fa-f]/.test(c)
},
};
let source;
let parseState;
let stack;
let pos;
let line;
let column;
let token;
let key;
let root;
var parse = function parse (text, reviver) {
source = String(text);
parseState = 'start';
stack = [];
pos = 0;
line = 1;
column = 0;
token = undefined;
key = undefined;
root = undefined;
do {
token = lex();
// This code is unreachable.
// if (!parseStates[parseState]) {
// throw invalidParseState()
// }
parseStates[parseState]();
} while (token.type !== 'eof')
if (typeof reviver === 'function') {
return internalize({'': root}, '', reviver)
}
return root
};
function internalize (holder, name, reviver) {
const value = holder[name];
if (value != null && typeof value === 'object') {
if (Array.isArray(value)) {
for (let i = 0; i < value.length; i++) {
const key = String(i);
const replacement = internalize(value, key, reviver);
if (replacement === undefined) {
delete value[key];
} else {
Object.defineProperty(value, key, {
value: replacement,
writable: true,
enumerable: true,
configurable: true,
});
}
}
} else {
for (const key in value) {
const replacement = internalize(value, key, reviver);
if (replacement === undefined) {
delete value[key];
} else {
Object.defineProperty(value, key, {
value: replacement,
writable: true,
enumerable: true,
configurable: true,
});
}
}
}
}
return reviver.call(holder, name, value)
}
let lexState;
let buffer;
let doubleQuote;
let sign;
let c;
function lex () {
lexState = 'default';
buffer = '';
doubleQuote = false;
sign = 1;
for (;;) {
c = peek();
// This code is unreachable.
// if (!lexStates[lexState]) {
// throw invalidLexState(lexState)
// }
const token = lexStates[lexState]();
if (token) {
return token
}
}
}
function peek () {
if (source[pos]) {
return String.fromCodePoint(source.codePointAt(pos))
}
}
function read () {
const c = peek();
if (c === '\n') {
line++;
column = 0;
} else if (c) {
column += c.length;
} else {
column++;
}
if (c) {
pos += c.length;
}
return c
}
const lexStates = {
default () {
switch (c) {
case '\t':
case '\v':
case '\f':
case ' ':
case '\u00A0':
case '\uFEFF':
case '\n':
case '\r':
case '\u2028':
case '\u2029':
read();
return
case '/':
read();
lexState = 'comment';
return
case undefined:
read();
return newToken('eof')
}
if (util.isSpaceSeparator(c)) {
read();
return
}
// This code is unreachable.
// if (!lexStates[parseState]) {
// throw invalidLexState(parseState)
// }
return lexStates[parseState]()
},
comment () {
switch (c) {
case '*':
read();
lexState = 'multiLineComment';
return
case '/':
read();
lexState = 'singleLineComment';
return
}
throw invalidChar(read())
},
multiLineComment () {
switch (c) {
case '*':
read();
lexState = 'multiLineCommentAsterisk';
return
case undefined:
throw invalidChar(read())
}
read();
},
multiLineCommentAsterisk () {
switch (c) {
case '*':
read();
return
case '/':
read();
lexState = 'default';
return
case undefined:
throw invalidChar(read())
}
read();
lexState = 'multiLineComment';
},
singleLineComment () {
switch (c) {
case '\n':
case '\r':
case '\u2028':
case '\u2029':
read();
lexState = 'default';
return
case undefined:
read();
return newToken('eof')
}
read();
},
value () {
switch (c) {
case '{':
case '[':
return newToken('punctuator', read())
case 'n':
read();
literal('ull');
return newToken('null', null)
case 't':
read();
literal('rue');
return newToken('boolean', true)
case 'f':
read();
literal('alse');
return newToken('boolean', false)
case '-':
case '+':
if (read() === '-') {
sign = -1;
}
lexState = 'sign';
return
case '.':
buffer = read();
lexState = 'decimalPointLeading';
return
case '0':
buffer = read();
lexState = 'zero';
return
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
buffer = read();
lexState = 'decimalInteger';
return
case 'I':
read();
literal('nfinity');
return newToken('numeric', Infinity)
case 'N':
read();
literal('aN');
return newToken('numeric', NaN)
case '"':
case "'":
doubleQuote = (read() === '"');
buffer = '';
lexState = 'string';
return
}
throw invalidChar(read())
},
identifierNameStartEscape () {
if (c !== 'u') {
throw invalidChar(read())
}
read();
const u = unicodeEscape();
switch (u) {
case '$':
case '_':
break
default:
if (!util.isIdStartChar(u)) {
throw invalidIdentifier()
}
break
}
buffer += u;
lexState = 'identifierName';
},
identifierName () {
switch (c) {
case '$':
case '_':
case '\u200C':
case '\u200D':
buffer += read();
return
case '\\':
read();
lexState = 'identifierNameEscape';
return
}
if (util.isIdContinueChar(c)) {
buffer += read();
return
}
return newToken('identifier', buffer)
},
identifierNameEscape () {
if (c !== 'u') {
throw invalidChar(read())
}
read();
const u = unicodeEscape();
switch (u) {
case '$':
case '_':
case '\u200C':
case '\u200D':
break
default:
if (!util.isIdContinueChar(u)) {
throw invalidIdentifier()
}
break
}
buffer += u;
lexState = 'identifierName';
},
sign () {
switch (c) {
case '.':
buffer = read();
lexState = 'decimalPointLeading';
return
case '0':
buffer = read();
lexState = 'zero';
return
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
buffer = read();
lexState = 'decimalInteger';
return
case 'I':
read();
literal('nfinity');
return newToken('numeric', sign * Infinity)
case 'N':
read();
literal('aN');
return newToken('numeric', NaN)
}
throw invalidChar(read())
},
zero () {
switch (c) {
case '.':
buffer += read();
lexState = 'decimalPoint';
return
case 'e':
case 'E':
buffer += read();
lexState = 'decimalExponent';
return
case 'x':
case 'X':
buffer += read();
lexState = 'hexadecimal';
return
}
return newToken('numeric', sign * 0)
},
decimalInteger () {
switch (c) {
case '.':
buffer += read();
lexState = 'decimalPoint';
return
case 'e':
case 'E':
buffer += read();
lexState = 'decimalExponent';
return
}
if (util.isDigit(c)) {
buffer += read();
return
}
return newToken('numeric', sign * Number(buffer))
},
decimalPointLeading () {
if (util.isDigit(c)) {
buffer += read();
lexState = 'decimalFraction';
return
}
throw invalidChar(read())
},
decimalPoint () {
switch (c) {
case 'e':
case 'E':
buffer += read();
lexState = 'decimalExponent';
return
}
if (util.isDigit(c)) {
buffer += read();
lexState = 'decimalFraction';
return
}
return newToken('numeric', sign * Number(buffer))
},
decimalFraction () {
switch (c) {
case 'e':
case 'E':
buffer += read();
lexState = 'decimalExponent';
return
}
if (util.isDigit(c)) {
buffer += read();
return
}
return newToken('numeric', sign * Number(buffer))
},
decimalExponent () {
switch (c) {
case '+':
case '-':
buffer += read();
lexState = 'decimalExponentSign';
return
}
if (util.isDigit(c)) {
buffer += read();
lexState = 'decimalExponentInteger';
return
}
throw invalidChar(read())
},
decimalExponentSign () {
if (util.isDigit(c)) {
buffer += read();
lexState = 'decimalExponentInteger';
return
}
throw invalidChar(read())
},
decimalExponentInteger () {
if (util.isDigit(c)) {
buffer += read();
return
}
return newToken('numeric', sign * Number(buffer))
},
hexadecimal () {
if (util.isHexDigit(c)) {
buffer += read();
lexState = 'hexadecimalInteger';
return
}
throw invalidChar(read())
},
hexadecimalInteger () {
if (util.isHexDigit(c)) {
buffer += read();
return
}
return newToken('numeric', sign * Number(buffer))
},
string () {
switch (c) {
case '\\':
read();
buffer += escape();
return
case '"':
if (doubleQuote) {
read();
return newToken('string', buffer)
}
buffer += read();
return
case "'":
if (!doubleQuote) {
read();
return newToken('string', buffer)
}
buffer += read();
return
case '\n':
case '\r':
throw invalidChar(read())
case '\u2028':
case '\u2029':
separatorChar(c);
break
case undefined:
throw invalidChar(read())
}
buffer += read();
},
start () {
switch (c) {
case '{':
case '[':
return newToken('punctuator', read())
// This code is unreachable since the default lexState handles eof.
// case undefined:
// return newToken('eof')
}
lexState = 'value';
},
beforePropertyName () {
switch (c) {
case '$':
case '_':
buffer = read();
lexState = 'identifierName';
return
case '\\':
read();
lexState = 'identifierNameStartEscape';
return
case '}':
return newToken('punctuator', read())
case '"':
case "'":
doubleQuote = (read() === '"');
lexState = 'string';
return
}
if (util.isIdStartChar(c)) {
buffer += read();
lexState = 'identifierName';
return
}
throw invalidChar(read())
},
afterPropertyName () {
if (c === ':') {
return newToken('punctuator', read())
}
throw invalidChar(read())
},
beforePropertyValue () {
lexState = 'value';
},
afterPropertyValue () {
switch (c) {
case ',':
case '}':
return newToken('punctuator', read())
}
throw invalidChar(read())
},
beforeArrayValue () {
if (c === ']') {
return newToken('punctuator', read())
}
lexState = 'value';
},
afterArrayValue () {
switch (c) {
case ',':
case ']':
return newToken('punctuator', read())
}
throw invalidChar(read())
},
end () {
// This code is unreachable since it's handled by the default lexState.
// if (c === undefined) {
// read()
// return newToken('eof')
// }
throw invalidChar(read())
},
};
function newToken (type, value) {
return {
type,
value,
line,
column,
}
}
function literal (s) {
for (const c of s) {
const p = peek();
if (p !== c) {
throw invalidChar(read())
}
read();
}
}
function escape () {
const c = peek();
switch (c) {
case 'b':
read();
return '\b'
case 'f':
read();
return '\f'
case 'n':
read();
return '\n'
case 'r':
read();
return '\r'
case 't':
read();
return '\t'
case 'v':
read();
return '\v'
case '0':
read();
if (util.isDigit(peek())) {
throw invalidChar(read())
}
return '\0'
case 'x':
read();
return hexEscape()
case 'u':
read();
return unicodeEscape()
case '\n':
case '\u2028':
case '\u2029':
read();
return ''
case '\r':
read();
if (peek() === '\n') {
read();
}
return ''
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
throw invalidChar(read())
case undefined:
throw invalidChar(read())
}
return read()
}
function hexEscape () {
let buffer = '';
let c = peek();
if (!util.isHexDigit(c)) {
throw invalidChar(read())
}
buffer += read();
c = peek();
if (!util.isHexDigit(c)) {
throw invalidChar(read())
}
buffer += read();
return String.fromCodePoint(parseInt(buffer, 16))
}
function unicodeEscape () {
let buffer = '';
let count = 4;
while (count-- > 0) {
const c = peek();
if (!util.isHexDigit(c)) {
throw invalidChar(read())
}
buffer += read();
}
return String.fromCodePoint(parseInt(buffer, 16))
}
const parseStates = {
start () {
if (token.type === 'eof') {
throw invalidEOF()
}
push();
},
beforePropertyName () {
switch (token.type) {
case 'identifier':
case 'string':
key = token.value;
parseState = 'afterPropertyName';
return
case 'punctuator':
// This code is unreachable since it's handled by the lexState.
// if (token.value !== '}') {
// throw invalidToken()
// }
pop();
return
case 'eof':
throw invalidEOF()
}
// This code is unreachable since it's handled by the lexState.
// throw invalidToken()
},
afterPropertyName () {
// This code is unreachable since it's handled by the lexState.
// if (token.type !== 'punctuator' || token.value !== ':') {
// throw invalidToken()
// }
if (token.type === 'eof') {
throw invalidEOF()
}
parseState = 'beforePropertyValue';
},
beforePropertyValue () {
if (token.type === 'eof') {
throw invalidEOF()
}
push();
},
beforeArrayValue () {
if (token.type === 'eof') {
throw invalidEOF()
}
if (token.type === 'punctuator' && token.value === ']') {
pop();
return
}
push();
},
afterPropertyValue () {
// This code is unreachable since it's handled by the lexState.
// if (token.type !== 'punctuator') {
// throw invalidToken()
// }
if (token.type === 'eof') {
throw invalidEOF()
}
switch (token.value) {
case ',':
parseState = 'beforePropertyName';
return
case '}':
pop();
}
// This code is unreachable since it's handled by the lexState.
// throw invalidToken()
},
afterArrayValue () {
// This code is unreachable since it's handled by the lexState.
// if (token.type !== 'punctuator') {
// throw invalidToken()
// }
if (token.type === 'eof') {
throw invalidEOF()
}
switch (token.value) {
case ',':
parseState = 'beforeArrayValue';
return
case ']':
pop();
}
// This code is unreachable since it's handled by the lexState.
// throw invalidToken()
},
end () {
// This code is unreachable since it's handled by the lexState.
// if (token.type !== 'eof') {
// throw invalidToken()