diff options
| author | littleblack111 <littleblack11111@gmail.com> | 2026-05-18 23:10:59 +0800 |
|---|---|---|
| committer | littleblack111 <littleblack11111@gmail.com> | 2026-05-18 23:41:44 +0800 |
| commit | fc87c009806dcc98867f6b58efe29b042aa01dee (patch) | |
| tree | 8f59b3f4a5b66e9dfef2d40c8d318e258a521228 /node_modules/json5/lib/parse.js | |
| parent | 3336b2356ee6152d9c6ae59bd9b87ccbc0958407 (diff) | |
node: updatemain
Diffstat (limited to 'node_modules/json5/lib/parse.js')
| -rw-r--r-- | node_modules/json5/lib/parse.js | 1114 |
1 files changed, 0 insertions, 1114 deletions
diff --git a/node_modules/json5/lib/parse.js b/node_modules/json5/lib/parse.js deleted file mode 100644 index da2078a6..00000000 --- a/node_modules/json5/lib/parse.js +++ /dev/null @@ -1,1114 +0,0 @@ -const util = require('./util') - -let source -let parseState -let stack -let pos -let line -let column -let token -let key -let root - -module.exports = 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() - // } - }, -} - -function push () { - let value - - switch (token.type) { - case 'punctuator': - switch (token.value) { - case '{': - value = {} - break - - case '[': - value = [] - break - } - - break - - case 'null': - case 'boolean': - case 'numeric': - case 'string': - value = token.value - break - - // This code is unreachable. - // default: - // throw invalidToken() - } - - if (root === undefined) { - root = value - } else { - const parent = stack[stack.length - 1] - if (Array.isArray(parent)) { - parent.push(value) - } else { - Object.defineProperty(parent, key, { - value, - writable: true, - enumerable: true, - configurable: true, - }) - } - } - - if (value !== null && typeof value === 'object') { - stack.push(value) - - if (Array.isArray(value)) { - parseState = 'beforeArrayValue' - } else { - parseState = 'beforePropertyName' - } - } else { - const current = stack[stack.length - 1] - if (current == null) { - parseState = 'end' - } else if (Array.isArray(current)) { - parseState = 'afterArrayValue' - } else { - parseState = 'afterPropertyValue' - } - } -} - -function pop () { - stack.pop() - - const current = stack[stack.length - 1] - if (current == null) { - parseState = 'end' - } else if (Array.isArray(current)) { - parseState = 'afterArrayValue' - } else { - parseState = 'afterPropertyValue' - } -} - -// This code is unreachable. -// function invalidParseState () { -// return new Error(`JSON5: invalid parse state '${parseState}'`) -// } - -// This code is unreachable. -// function invalidLexState (state) { -// return new Error(`JSON5: invalid lex state '${state}'`) -// } - -function invalidChar (c) { - if (c === undefined) { - return syntaxError(`JSON5: invalid end of input at ${line}:${column}`) - } - - return syntaxError(`JSON5: invalid character '${formatChar(c)}' at ${line}:${column}`) -} - -function invalidEOF () { - return syntaxError(`JSON5: invalid end of input at ${line}:${column}`) -} - -// This code is unreachable. -// function invalidToken () { -// if (token.type === 'eof') { -// return syntaxError(`JSON5: invalid end of input at ${line}:${column}`) -// } - -// const c = String.fromCodePoint(token.value.codePointAt(0)) -// return syntaxError(`JSON5: invalid character '${formatChar(c)}' at ${line}:${column}`) -// } - -function invalidIdentifier () { - column -= 5 - return syntaxError(`JSON5: invalid identifier character at ${line}:${column}`) -} - -function separatorChar (c) { - console.warn(`JSON5: '${formatChar(c)}' in strings is not valid ECMAScript; consider escaping`) -} - -function formatChar (c) { - const replacements = { - "'": "\\'", - '"': '\\"', - '\\': '\\\\', - '\b': '\\b', - '\f': '\\f', - '\n': '\\n', - '\r': '\\r', - '\t': '\\t', - '\v': '\\v', - '\0': '\\0', - '\u2028': '\\u2028', - '\u2029': '\\u2029', - } - - if (replacements[c]) { - return replacements[c] - } - - if (c < ' ') { - const hexString = c.charCodeAt(0).toString(16) - return '\\x' + ('00' + hexString).substring(hexString.length) - } - - return c -} - -function syntaxError (message) { - const err = new SyntaxError(message) - err.lineNumber = line - err.columnNumber = column - return err -} |
