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(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports", "./format", "./edit"], factory);
}
})(function (require, exports) {
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
'use strict';
Object.defineProperty(exports, "__esModule", { value: true });
var format_1 = require("./format");
var edit_1 = require("./edit");
var ScanError;
(function (ScanError) {
ScanError[ScanError["None"] = 0] = "None";
ScanError[ScanError["UnexpectedEndOfComment"] = 1] = "UnexpectedEndOfComment";
ScanError[ScanError["UnexpectedEndOfString"] = 2] = "UnexpectedEndOfString";
ScanError[ScanError["UnexpectedEndOfNumber"] = 3] = "UnexpectedEndOfNumber";
ScanError[ScanError["InvalidUnicode"] = 4] = "InvalidUnicode";
ScanError[ScanError["InvalidEscapeCharacter"] = 5] = "InvalidEscapeCharacter";
ScanError[ScanError["InvalidCharacter"] = 6] = "InvalidCharacter";
})(ScanError = exports.ScanError || (exports.ScanError = {}));
var SyntaxKind;
(function (SyntaxKind) {
SyntaxKind[SyntaxKind["Unknown"] = 0] = "Unknown";
SyntaxKind[SyntaxKind["OpenBraceToken"] = 1] = "OpenBraceToken";
SyntaxKind[SyntaxKind["CloseBraceToken"] = 2] = "CloseBraceToken";
SyntaxKind[SyntaxKind["OpenBracketToken"] = 3] = "OpenBracketToken";
SyntaxKind[SyntaxKind["CloseBracketToken"] = 4] = "CloseBracketToken";
SyntaxKind[SyntaxKind["CommaToken"] = 5] = "CommaToken";
SyntaxKind[SyntaxKind["ColonToken"] = 6] = "ColonToken";
SyntaxKind[SyntaxKind["NullKeyword"] = 7] = "NullKeyword";
SyntaxKind[SyntaxKind["TrueKeyword"] = 8] = "TrueKeyword";
SyntaxKind[SyntaxKind["FalseKeyword"] = 9] = "FalseKeyword";
SyntaxKind[SyntaxKind["StringLiteral"] = 10] = "StringLiteral";
SyntaxKind[SyntaxKind["NumericLiteral"] = 11] = "NumericLiteral";
SyntaxKind[SyntaxKind["LineCommentTrivia"] = 12] = "LineCommentTrivia";
SyntaxKind[SyntaxKind["BlockCommentTrivia"] = 13] = "BlockCommentTrivia";
SyntaxKind[SyntaxKind["LineBreakTrivia"] = 14] = "LineBreakTrivia";
SyntaxKind[SyntaxKind["Trivia"] = 15] = "Trivia";
SyntaxKind[SyntaxKind["EOF"] = 16] = "EOF";
})(SyntaxKind = exports.SyntaxKind || (exports.SyntaxKind = {}));
/**
* Creates a JSON scanner on the given text.
* If ignoreTrivia is set, whitespaces or comments are ignored.
*/
function createScanner(text, ignoreTrivia) {
if (ignoreTrivia === void 0) { ignoreTrivia = false; }
var pos = 0, len = text.length, value = '', tokenOffset = 0, token = SyntaxKind.Unknown, scanError = ScanError.None;
function scanHexDigits(count, exact) {
var digits = 0;
var value = 0;
while (digits < count || !exact) {
var ch = text.charCodeAt(pos);
if (ch >= 48 /* _0 */ && ch <= 57 /* _9 */) {
value = value * 16 + ch - 48 /* _0 */;
}
else if (ch >= 65 /* A */ && ch <= 70 /* F */) {
value = value * 16 + ch - 65 /* A */ + 10;
}
else if (ch >= 97 /* a */ && ch <= 102 /* f */) {
value = value * 16 + ch - 97 /* a */ + 10;
}
else {
break;
}
pos++;
digits++;
}
if (digits < count) {
value = -1;
}
return value;
}
function setPosition(newPosition) {
pos = newPosition;
value = '';
tokenOffset = 0;
token = SyntaxKind.Unknown;
scanError = ScanError.None;
}
function scanNumber() {
var start = pos;
if (text.charCodeAt(pos) === 48 /* _0 */) {
pos++;
}
else {
pos++;
while (pos < text.length && isDigit(text.charCodeAt(pos))) {
pos++;
}
}
if (pos < text.length && text.charCodeAt(pos) === 46 /* dot */) {
pos++;
if (pos < text.length && isDigit(text.charCodeAt(pos))) {
pos++;
while (pos < text.length && isDigit(text.charCodeAt(pos))) {
pos++;
}
}
else {
scanError = ScanError.UnexpectedEndOfNumber;
return text.substring(start, pos);
}
}
var end = pos;
if (pos < text.length && (text.charCodeAt(pos) === 69 /* E */ || text.charCodeAt(pos) === 101 /* e */)) {
pos++;
if (pos < text.length && text.charCodeAt(pos) === 43 /* plus */ || text.charCodeAt(pos) === 45 /* minus */) {
pos++;
}
if (pos < text.length && isDigit(text.charCodeAt(pos))) {
pos++;
while (pos < text.length && isDigit(text.charCodeAt(pos))) {
pos++;
}
end = pos;
}
else {
scanError = ScanError.UnexpectedEndOfNumber;
}
}
return text.substring(start, end);
}
function scanString() {
var result = '', start = pos;
while (true) {
if (pos >= len) {
result += text.substring(start, pos);
scanError = ScanError.UnexpectedEndOfString;
break;
}
var ch = text.charCodeAt(pos);
if (ch === 34 /* doubleQuote */) {
result += text.substring(start, pos);
pos++;
break;
}
if (ch === 92 /* backslash */) {
result += text.substring(start, pos);
pos++;
if (pos >= len) {
scanError = ScanError.UnexpectedEndOfString;
break;
}
ch = text.charCodeAt(pos++);
switch (ch) {
case 34 /* doubleQuote */:
result += '\"';
break;
case 92 /* backslash */:
result += '\\';
break;
case 47 /* slash */:
result += '/';
break;
case 98 /* b */:
result += '\b';
break;
case 102 /* f */:
result += '\f';
break;
case 110 /* n */:
result += '\n';
break;
case 114 /* r */:
result += '\r';
break;
case 116 /* t */:
result += '\t';
break;
case 117 /* u */:
var ch_1 = scanHexDigits(4, true);
if (ch_1 >= 0) {
result += String.fromCharCode(ch_1);
}
else {
scanError = ScanError.InvalidUnicode;
}
break;
default:
scanError = ScanError.InvalidEscapeCharacter;
}
start = pos;
continue;
}
if (ch >= 0 && ch <= 0x1f) {
if (isLineBreak(ch)) {
result += text.substring(start, pos);
scanError = ScanError.UnexpectedEndOfString;
break;
}
else {
scanError = ScanError.InvalidCharacter;
// mark as error but continue with string
}
}
pos++;
}
return result;
}
function scanNext() {
value = '';
scanError = ScanError.None;
tokenOffset = pos;
if (pos >= len) {
// at the end
tokenOffset = len;
return token = SyntaxKind.EOF;
}
var code = text.charCodeAt(pos);
// trivia: whitespace
if (isWhiteSpace(code)) {
do {
pos++;
value += String.fromCharCode(code);
code = text.charCodeAt(pos);
} while (isWhiteSpace(code));
return token = SyntaxKind.Trivia;
}
// trivia: newlines
if (isLineBreak(code)) {
pos++;
value += String.fromCharCode(code);
if (code === 13 /* carriageReturn */ && text.charCodeAt(pos) === 10 /* lineFeed */) {
pos++;
value += '\n';
}
return token = SyntaxKind.LineBreakTrivia;
}
switch (code) {
// tokens: []{}:,
case 123 /* openBrace */:
pos++;
return token = SyntaxKind.OpenBraceToken;
case 125 /* closeBrace */:
pos++;
return token = SyntaxKind.CloseBraceToken;
case 91 /* openBracket */:
pos++;
return token = SyntaxKind.OpenBracketToken;
case 93 /* closeBracket */:
pos++;
return token = SyntaxKind.CloseBracketToken;
case 58 /* colon */:
pos++;
return token = SyntaxKind.ColonToken;
case 44 /* comma */:
pos++;
return token = SyntaxKind.CommaToken;
// strings
case 34 /* doubleQuote */:
pos++;
value = scanString();
return token = SyntaxKind.StringLiteral;
// comments
case 47 /* slash */:
var start = pos - 1;
// Single-line comment
if (text.charCodeAt(pos + 1) === 47 /* slash */) {
pos += 2;
while (pos < len) {
if (isLineBreak(text.charCodeAt(pos))) {
break;
}
pos++;
}
value = text.substring(start, pos);
return token = SyntaxKind.LineCommentTrivia;
}
// Multi-line comment
if (text.charCodeAt(pos + 1) === 42 /* asterisk */) {
pos += 2;
var safeLength = len - 1; // For lookahead.
var commentClosed = false;
while (pos < safeLength) {
var ch = text.charCodeAt(pos);
if (ch === 42 /* asterisk */ && text.charCodeAt(pos + 1) === 47 /* slash */) {
pos += 2;
commentClosed = true;
break;
}
pos++;
}
if (!commentClosed) {
pos++;
scanError = ScanError.UnexpectedEndOfComment;
}
value = text.substring(start, pos);
return token = SyntaxKind.BlockCommentTrivia;
}
// just a single slash
value += String.fromCharCode(code);
pos++;
return token = SyntaxKind.Unknown;
// numbers
case 45 /* minus */:
value += String.fromCharCode(code);
pos++;
if (pos === len || !isDigit(text.charCodeAt(pos))) {
return token = SyntaxKind.Unknown;
}
// found a minus, followed by a number so
// we fall through to proceed with scanning
// numbers
case 48 /* _0 */:
case 49 /* _1 */:
case 50 /* _2 */:
case 51 /* _3 */:
case 52 /* _4 */:
case 53 /* _5 */:
case 54 /* _6 */:
case 55 /* _7 */:
case 56 /* _8 */:
case 57 /* _9 */:
value += scanNumber();
return token = SyntaxKind.NumericLiteral;
// literals and unknown symbols
default:
// is a literal? Read the full word.
while (pos < len && isUnknownContentCharacter(code)) {
pos++;
code = text.charCodeAt(pos);
}
if (tokenOffset !== pos) {
value = text.substring(tokenOffset, pos);
// keywords: true, false, null
switch (value) {
case 'true': return token = SyntaxKind.TrueKeyword;
case 'false': return token = SyntaxKind.FalseKeyword;
case 'null': return token = SyntaxKind.NullKeyword;
}
return token = SyntaxKind.Unknown;
}
// some
value += String.fromCharCode(code);
pos++;
return token = SyntaxKind.Unknown;
}
}
function isUnknownContentCharacter(code) {
if (isWhiteSpace(code) || isLineBreak(code)) {
return false;
}
switch (code) {
case 125 /* closeBrace */:
case 93 /* closeBracket */:
case 123 /* openBrace */:
case 91 /* openBracket */:
case 34 /* doubleQuote */:
case 58 /* colon */:
case 44 /* comma */:
return false;
}
return true;
}
function scanNextNonTrivia() {
var result;
do {
result = scanNext();
} while (result >= SyntaxKind.LineCommentTrivia && result <= SyntaxKind.Trivia);
return result;
}
return {
setPosition: setPosition,
getPosition: function () { return pos; },
scan: ignoreTrivia ? scanNextNonTrivia : scanNext,
getToken: function () { return token; },
getTokenValue: function () { return value; },
getTokenOffset: function () { return tokenOffset; },
getTokenLength: function () { return pos - tokenOffset; },
getTokenError: function () { return scanError; }
};
}
exports.createScanner = createScanner;
function isWhiteSpace(ch) {
return ch === 32 /* space */ || ch === 9 /* tab */ || ch === 11 /* verticalTab */ || ch === 12 /* formFeed */ ||
ch === 160 /* nonBreakingSpace */ || ch === 5760 /* ogham */ || ch >= 8192 /* enQuad */ && ch <= 8203 /* zeroWidthSpace */ ||
ch === 8239 /* narrowNoBreakSpace */ || ch === 8287 /* mathematicalSpace */ || ch === 12288 /* ideographicSpace */ || ch === 65279 /* byteOrderMark */;
}
function isLineBreak(ch) {
return ch === 10 /* lineFeed */ || ch === 13 /* carriageReturn */ || ch === 8232 /* lineSeparator */ || ch === 8233 /* paragraphSeparator */;
}
function isDigit(ch) {
return ch >= 48 /* _0 */ && ch <= 57 /* _9 */;
}
/**
* Takes JSON with JavaScript-style comments and remove
* them. Optionally replaces every none-newline character
* of comments with a replaceCharacter
*/
function stripComments(text, replaceCh) {
var _scanner = createScanner(text), parts = [], kind, offset = 0, pos;
do {
pos = _scanner.getPosition();
kind = _scanner.scan();
switch (kind) {
case SyntaxKind.LineCommentTrivia:
case SyntaxKind.BlockCommentTrivia:
case SyntaxKind.EOF:
if (offset !== pos) {
parts.push(text.substring(offset, pos));
}
if (replaceCh !== void 0) {
parts.push(_scanner.getTokenValue().replace(/[^\r\n]/g, replaceCh));
}
offset = _scanner.getPosition();
break;
}
} while (kind !== SyntaxKind.EOF);
return parts.join('');
}
exports.stripComments = stripComments;
var ParseErrorCode;
(function (ParseErrorCode) {
ParseErrorCode[ParseErrorCode["InvalidSymbol"] = 0] = "InvalidSymbol";
ParseErrorCode[ParseErrorCode["InvalidNumberFormat"] = 1] = "InvalidNumberFormat";
ParseErrorCode[ParseErrorCode["PropertyNameExpected"] = 2] = "PropertyNameExpected";
ParseErrorCode[ParseErrorCode["ValueExpected"] = 3] = "ValueExpected";
ParseErrorCode[ParseErrorCode["ColonExpected"] = 4] = "ColonExpected";
ParseErrorCode[ParseErrorCode["CommaExpected"] = 5] = "CommaExpected";
ParseErrorCode[ParseErrorCode["CloseBraceExpected"] = 6] = "CloseBraceExpected";
ParseErrorCode[ParseErrorCode["CloseBracketExpected"] = 7] = "CloseBracketExpected";
ParseErrorCode[ParseErrorCode["EndOfFileExpected"] = 8] = "EndOfFileExpected";
})(ParseErrorCode = exports.ParseErrorCode || (exports.ParseErrorCode = {}));
function getLiteralNodeType(value) {
switch (typeof value) {
case 'boolean': return 'boolean';
case 'number': return 'number';
case 'string': return 'string';
default: return 'null';
}
}
/**
* For a given offset, evaluate the location in the JSON document. Each segment in the location path is either a property name or an array index.
*/
function getLocation(text, position) {
var segments = []; // strings or numbers
var earlyReturnException = new Object();
var previousNode = void 0;
var previousNodeInst = {
value: {},
offset: 0,
length: 0,
type: 'object'
};
var isAtPropertyKey = false;
function setPreviousNode(value, offset, length, type) {
previousNodeInst.value = value;
previousNodeInst.offset = offset;
previousNodeInst.length = length;
previousNodeInst.type = type;
previousNodeInst.columnOffset = void 0;
previousNode = previousNodeInst;
}
try {
visit(text, {
onObjectBegin: function (offset, length) {
if (position <= offset) {
throw earlyReturnException;
}
previousNode = void 0;
isAtPropertyKey = position > offset;
segments.push(''); // push a placeholder (will be replaced)
},
onObjectProperty: function (name, offset, length) {
if (position < offset) {
throw earlyReturnException;
}
setPreviousNode(name, offset, length, 'property');
segments[segments.length - 1] = name;
if (position <= offset + length) {
throw earlyReturnException;
}
},
onObjectEnd: function (offset, length) {
if (position <= offset) {
throw earlyReturnException;
}
previousNode = void 0;
segments.pop();
},
onArrayBegin: function (offset, length) {
if (position <= offset) {
throw earlyReturnException;
}
previousNode = void 0;
segments.push(0);
},
onArrayEnd: function (offset, length) {
if (position <= offset) {
throw earlyReturnException;
}
previousNode = void 0;
segments.pop();
},
onLiteralValue: function (value, offset, length) {
if (position < offset) {
throw earlyReturnException;
}
setPreviousNode(value, offset, length, getLiteralNodeType(value));
if (position <= offset + length) {
throw earlyReturnException;
}
},
onSeparator: function (sep, offset, length) {
if (position <= offset) {
throw earlyReturnException;
}
if (sep === ':' && previousNode && previousNode.type === 'property') {
previousNode.columnOffset = offset;
isAtPropertyKey = false;
previousNode = void 0;
}
else if (sep === ',') {
var last = segments[segments.length - 1];
if (typeof last === 'number') {
segments[segments.length - 1] = last + 1;
}
else {
isAtPropertyKey = true;
segments[segments.length - 1] = '';
}
previousNode = void 0;
}
}
});
}
catch (e) {
if (e !== earlyReturnException) {
throw e;
}
}
return {
path: segments,
previousNode: previousNode,
isAtPropertyKey: isAtPropertyKey,
matches: function (pattern) {
var k = 0;
for (var i = 0; k < pattern.length && i < segments.length; i++) {
if (pattern[k] === segments[i] || pattern[k] === '*') {
k++;
}
else if (pattern[k] !== '**') {
return false;
}
}
return k === pattern.length;
}
};
}
exports.getLocation = getLocation;
/**
* Parses the given text and returns the object the JSON content represents. On invalid input, the parser tries to be as fault tolerant as possible, but still return a result.
* Therefore always check the errors list to find out if the input was valid.
*/
function parse(text, errors, options) {
if (errors === void 0) { errors = []; }
var currentProperty = null;
var currentParent = [];
var previousParents = [];
function onValue(value) {
if (Array.isArray(currentParent)) {
currentParent.push(value);
}
else if (currentProperty) {
currentParent[currentProperty] = value;
}
}
var visitor = {
onObjectBegin: function () {
var object = {};
onValue(object);
previousParents.push(currentParent);
currentParent = object;
currentProperty = null;
},
onObjectProperty: function (name) {
currentProperty = name;
},
onObjectEnd: function () {
currentParent = previousParents.pop();
},
onArrayBegin: function () {
var array = [];
onValue(array);
previousParents.push(currentParent);
currentParent = array;
currentProperty = null;
},
onArrayEnd: function () {
currentParent = previousParents.pop();
},
onLiteralValue: onValue,
onError: function (error, offset, length) {
errors.push({ error: error, offset: offset, length: length });
}
};
visit(text, visitor, options);
return currentParent[0];
}
exports.parse = parse;
/**
* Parses the given text and returns a tree representation the JSON content. On invalid input, the parser tries to be as fault tolerant as possible, but still return a result.
*/
function parseTree(text, errors, options) {
if (errors === void 0) { errors = []; }
var currentParent = { type: 'array', offset: -1, length: -1, children: [] }; // artificial root
function ensurePropertyComplete(endOffset) {
if (currentParent.type === 'property') {
currentParent.length = endOffset - currentParent.offset;
currentParent = currentParent.parent;
}
}
function onValue(valueNode) {
currentParent.children.push(valueNode);
return valueNode;
}
var visitor = {
onObjectBegin: function (offset) {
currentParent = onValue({ type: 'object', offset: offset, length: -1, parent: currentParent, children: [] });
},
onObjectProperty: function (name, offset, length) {
currentParent = onValue({ type: 'property', offset: offset, length: -1, parent: currentParent, children: [] });
currentParent.children.push({ type: 'string', value: name, offset: offset, length: length, parent: currentParent });
},
onObjectEnd: function (offset, length) {
currentParent.length = offset + length - currentParent.offset;
currentParent = currentParent.parent;
ensurePropertyComplete(offset + length);
},
onArrayBegin: function (offset, length) {
currentParent = onValue({ type: 'array', offset: offset, length: -1, parent: currentParent, children: [] });
},
onArrayEnd: function (offset, length) {
currentParent.length = offset + length - currentParent.offset;
currentParent = currentParent.parent;
ensurePropertyComplete(offset + length);
},
onLiteralValue: function (value, offset, length) {
onValue({ type: getLiteralNodeType(value), offset: offset, length: length, parent: currentParent, value: value });
ensurePropertyComplete(offset + length);
},
onSeparator: function (sep, offset, length) {
if (currentParent.type === 'property') {
if (sep === ':') {
currentParent.columnOffset = offset;
}
else if (sep === ',') {
ensurePropertyComplete(offset);
}
}
},
onError: function (error, offset, length) {
errors.push({ error: error, offset: offset, length: length });
}
};
visit(text, visitor, options);
var result = currentParent.children[0];
if (result) {
delete result.parent;
}
return result;
}
exports.parseTree = parseTree;
/**
* Finds the node at the given path in a JSON DOM.
*/
function findNodeAtLocation(root, path) {
if (!root) {
return void 0;
}
var node = root;
for (var _i = 0, path_1 = path; _i < path_1.length; _i++) {
var segment = path_1[_i];
if (typeof segment === 'string') {
if (node.type !== 'object' || !Array.isArray(node.children)) {
return void 0;
}
var found = false;
for (var _a = 0, _b = node.children; _a < _b.length; _a++) {
var propertyNode = _b[_a];
if (Array.isArray(propertyNode.children) && propertyNode.children[0].value === segment) {
node = propertyNode.children[1];
found = true;
break;
}
}
if (!found) {
return void 0;
}
}
else {
var index = segment;
if (node.type !== 'array' || index < 0 || !Array.isArray(node.children) || index >= node.children.length) {
return void 0;
}
node = node.children[index];
}
}
return node;
}
exports.findNodeAtLocation = findNodeAtLocation;
/**
* Evaluates the JavaScript object of the given JSON DOM node
*/
function getNodeValue(node) {
if (node.type === 'array') {
return node.children.map(getNodeValue);
}
else if (node.type === 'object') {
var obj = Object.create(null);
for (var _i = 0, _a = node.children; _i < _a.length; _i++) {
var prop = _a[_i];
obj[prop.children[0].value] = getNodeValue(prop.children[1]);
}
return obj;
}
return node.value;
}
exports.getNodeValue = getNodeValue;
/**
* Parses the given text and invokes the visitor functions for each object, array and literal reached.
*/
function visit(text, visitor, options) {
var _scanner = createScanner(text, false);
function toNoArgVisit(visitFunction) {
return visitFunction ? function () { return visitFunction(_scanner.getTokenOffset(), _scanner.getTokenLength()); } : function () { return true; };
}
function toOneArgVisit(visitFunction) {
return visitFunction ? function (arg) { return visitFunction(arg, _scanner.getTokenOffset(), _scanner.getTokenLength()); } : function () { return true; };
}
var onObjectBegin = toNoArgVisit(visitor.onObjectBegin), onObjectProperty = toOneArgVisit(visitor.onObjectProperty), onObjectEnd = toNoArgVisit(visitor.onObjectEnd), onArrayBegin = toNoArgVisit(visitor.onArrayBegin), onArrayEnd = toNoArgVisit(visitor.onArrayEnd), onLiteralValue = toOneArgVisit(visitor.onLiteralValue), onSeparator = toOneArgVisit(visitor.onSeparator), onError = toOneArgVisit(visitor.onError);
var disallowComments = options && options.disallowComments;
var allowTrailingComma = options && options.allowTrailingComma;
function scanNext() {
while (true) {
var token = _scanner.scan();
switch (token) {
case SyntaxKind.LineCommentTrivia:
case SyntaxKind.BlockCommentTrivia:
if (disallowComments) {
handleError(ParseErrorCode.InvalidSymbol);
}
break;
case SyntaxKind.Unknown:
handleError(ParseErrorCode.InvalidSymbol);
break;
case SyntaxKind.Trivia:
case SyntaxKind.LineBreakTrivia:
break;
default:
return token;
}
}
}
function handleError(error, skipUntilAfter, skipUntil) {
if (skipUntilAfter === void 0) { skipUntilAfter = []; }
if (skipUntil === void 0) { skipUntil = []; }
onError(error);
if (skipUntilAfter.length + skipUntil.length > 0) {
var token = _scanner.getToken();
while (token !== SyntaxKind.EOF) {
if (skipUntilAfter.indexOf(token) !== -1) {
scanNext();
break;
}
else if (skipUntil.indexOf(token) !== -1) {
break;
}
token = scanNext();
}
}
}
function parseString(isValue) {
var value = _scanner.getTokenValue();
if (isValue) {
onLiteralValue(value);
}
else {
onObjectProperty(value);
}
scanNext();
return true;
}
function parseLiteral() {
switch (_scanner.getToken()) {
case SyntaxKind.NumericLiteral:
var value = 0;
try {
value = JSON.parse(_scanner.getTokenValue());
if (typeof value !== 'number') {
handleError(ParseErrorCode.InvalidNumberFormat);
value = 0;
}
}
catch (e) {
handleError(ParseErrorCode.InvalidNumberFormat);
}
onLiteralValue(value);
break;
case SyntaxKind.NullKeyword:
onLiteralValue(null);
break;
case SyntaxKind.TrueKeyword:
onLiteralValue(true);
break;
case SyntaxKind.FalseKeyword:
onLiteralValue(false);
break;
default:
return false;
}
scanNext();
return true;
}
function parseProperty() {
if (_scanner.getToken() !== SyntaxKind.StringLiteral) {
handleError(ParseErrorCode.PropertyNameExpected, [], [SyntaxKind.CloseBraceToken, SyntaxKind.CommaToken]);
return false;
}
parseString(false);
if (_scanner.getToken() === SyntaxKind.ColonToken) {
onSeparator(':');
scanNext(); // consume colon
if (!parseValue()) {
handleError(ParseErrorCode.ValueExpected, [], [SyntaxKind.CloseBraceToken, SyntaxKind.CommaToken]);
}
}
else {
handleError(ParseErrorCode.ColonExpected, [], [SyntaxKind.CloseBraceToken, SyntaxKind.CommaToken]);
}
return true;
}
function parseObject() {
onObjectBegin();
scanNext(); // consume open brace
var needsComma = false;
while (_scanner.getToken() !== SyntaxKind.CloseBraceToken && _scanner.getToken() !== SyntaxKind.EOF) {
if (_scanner.getToken() === SyntaxKind.CommaToken) {
if (!needsComma) {
handleError(ParseErrorCode.ValueExpected, [], []);
}
onSeparator(',');
scanNext(); // consume comma
if (_scanner.getToken() === SyntaxKind.CloseBraceToken && allowTrailingComma) {
break;
}
}
else if (needsComma) {
handleError(ParseErrorCode.CommaExpected, [], []);
}
if (!parseProperty()) {
handleError(ParseErrorCode.ValueExpected, [], [SyntaxKind.CloseBraceToken, SyntaxKind.CommaToken]);
}
needsComma = true;
}
onObjectEnd();
if (_scanner.getToken() !== SyntaxKind.CloseBraceToken) {
handleError(ParseErrorCode.CloseBraceExpected, [SyntaxKind.CloseBraceToken], []);
}
else {
scanNext(); // consume close brace
}
return true;
}
function parseArray() {
onArrayBegin();
scanNext(); // consume open bracket
var needsComma = false;
while (_scanner.getToken() !== SyntaxKind.CloseBracketToken && _scanner.getToken() !== SyntaxKind.EOF) {
if (_scanner.getToken() === SyntaxKind.CommaToken) {
if (!needsComma) {
handleError(ParseErrorCode.ValueExpected, [], []);
}
onSeparator(',');
scanNext(); // consume comma
}
else if (needsComma) {
handleError(ParseErrorCode.CommaExpected, [], []);
}
if (!parseValue()) {
handleError(ParseErrorCode.ValueExpected, [], [SyntaxKind.CloseBracketToken, SyntaxKind.CommaToken]);
}
needsComma = true;
}
onArrayEnd();
if (_scanner.getToken() !== SyntaxKind.CloseBracketToken) {
handleError(ParseErrorCode.CloseBracketExpected, [SyntaxKind.CloseBracketToken], []);
}
else {
scanNext(); // consume close bracket
}
return true;
}
function parseValue() {
switch (_scanner.getToken()) {
case SyntaxKind.OpenBracketToken:
return parseArray();
case SyntaxKind.OpenBraceToken:
return parseObject();
case SyntaxKind.StringLiteral:
return parseString(true);
default:
return parseLiteral();
}
}
scanNext();
if (_scanner.getToken() === SyntaxKind.EOF) {
return true;
}
if (!parseValue()) {
handleError(ParseErrorCode.ValueExpected, [], []);
return false;
}
if (_scanner.getToken() !== SyntaxKind.EOF) {
handleError(ParseErrorCode.EndOfFileExpected, [], []);
}
return true;
}
exports.visit = visit;
/**
* Computes the edits needed to format a JSON document.
*
* @param documentText The input text
* @param range The range to format or `undefined` to format the full content
* @param options The formatting options
* @returns A list of edit operations describing the formatting changes to the original document. Edits can be either inserts, replacements or
* removals of text segments. All offsets refer to the original state of the document. No two edits must change or remove the same range of
* text in the original document. However, multiple edits can have
* the same offset, for example multiple inserts, or an insert followed by a remove or replace. The order in the array defines which edit is applied first.
* To apply edits to an input, you can use `applyEdits`
*/
function format(documentText, range, options) {
return format_1.format(documentText, range, options);
}
exports.format = format;
/**
* Computes the edits needed to modify a value in the JSON document.
*
* @param documentText The input text
* @param path The path of the value to change. The path represents either to the document root, a property or an array item.
* If the path points to an non-existing property or item, it will be created.
* @param value The new value for the specified property or item. If the value is undefined,
* the property or item will be removed.
* @param options Options
* @returns A list of edit operations describing the formatting changes to the original document. Edits can be either inserts, replacements or
* removals of text segments. All offsets refer to the original state of the document. No two edits must change or remove the same range of
* text in the original document. However, multiple edits can have
* the same offset, for example multiple inserts, or an insert followed by a remove or replace. The order in the array defines which edit is applied first.
* To apply edits to an input, you can use `applyEdits`
*/
function modify(text, path, value, options) {
return edit_1.setProperty(text, path, value, options.formattingOptions, options.getInsertionIndex);
}
exports.modify = modify;
/**
* Applies edits to a input string.
*/
function applyEdits(text, edits) {
for (var i = edits.length - 1; i >= 0; i--) {
text = edit_1.applyEdit(text, edits[i]);
}
return text;
}
exports.applyEdits = applyEdits;
});
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