--- /dev/null
+(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"], 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 });
+ exports.createScanner = void 0;
+ /**
+ * 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 len = text.length;
+ var pos = 0, value = '', tokenOffset = 0, token = 16 /* Unknown */, lineNumber = 0, lineStartOffset = 0, tokenLineStartOffset = 0, prevTokenLineStartOffset = 0, scanError = 0 /* 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 = 16 /* Unknown */;
+ scanError = 0 /* 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 = 3 /* 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 = 3 /* UnexpectedEndOfNumber */;
+ }
+ }
+ return text.substring(start, end);
+ }
+ function scanString() {
+ var result = '', start = pos;
+ while (true) {
+ if (pos >= len) {
+ result += text.substring(start, pos);
+ scanError = 2 /* 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 = 2 /* UnexpectedEndOfString */;
+ break;
+ }
+ var ch2 = text.charCodeAt(pos++);
+ switch (ch2) {
+ 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 ch3 = scanHexDigits(4, true);
+ if (ch3 >= 0) {
+ result += String.fromCharCode(ch3);
+ }
+ else {
+ scanError = 4 /* InvalidUnicode */;
+ }
+ break;
+ default:
+ scanError = 5 /* InvalidEscapeCharacter */;
+ }
+ start = pos;
+ continue;
+ }
+ if (ch >= 0 && ch <= 0x1f) {
+ if (isLineBreak(ch)) {
+ result += text.substring(start, pos);
+ scanError = 2 /* UnexpectedEndOfString */;
+ break;
+ }
+ else {
+ scanError = 6 /* InvalidCharacter */;
+ // mark as error but continue with string
+ }
+ }
+ pos++;
+ }
+ return result;
+ }
+ function scanNext() {
+ value = '';
+ scanError = 0 /* None */;
+ tokenOffset = pos;
+ lineStartOffset = lineNumber;
+ prevTokenLineStartOffset = tokenLineStartOffset;
+ if (pos >= len) {
+ // at the end
+ tokenOffset = len;
+ return token = 17 /* 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 = 15 /* Trivia */;
+ }
+ // trivia: newlines
+ if (isLineBreak(code)) {
+ pos++;
+ value += String.fromCharCode(code);
+ if (code === 13 /* carriageReturn */ && text.charCodeAt(pos) === 10 /* lineFeed */) {
+ pos++;
+ value += '\n';
+ }
+ lineNumber++;
+ tokenLineStartOffset = pos;
+ return token = 14 /* LineBreakTrivia */;
+ }
+ switch (code) {
+ // tokens: []{}:,
+ case 123 /* openBrace */:
+ pos++;
+ return token = 1 /* OpenBraceToken */;
+ case 125 /* closeBrace */:
+ pos++;
+ return token = 2 /* CloseBraceToken */;
+ case 91 /* openBracket */:
+ pos++;
+ return token = 3 /* OpenBracketToken */;
+ case 93 /* closeBracket */:
+ pos++;
+ return token = 4 /* CloseBracketToken */;
+ case 58 /* colon */:
+ pos++;
+ return token = 6 /* ColonToken */;
+ case 44 /* comma */:
+ pos++;
+ return token = 5 /* CommaToken */;
+ // strings
+ case 34 /* doubleQuote */:
+ pos++;
+ value = scanString();
+ return token = 10 /* 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 = 12 /* 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 (isLineBreak(ch)) {
+ if (ch === 13 /* carriageReturn */ && text.charCodeAt(pos) === 10 /* lineFeed */) {
+ pos++;
+ }
+ lineNumber++;
+ tokenLineStartOffset = pos;
+ }
+ }
+ if (!commentClosed) {
+ pos++;
+ scanError = 1 /* UnexpectedEndOfComment */;
+ }
+ value = text.substring(start, pos);
+ return token = 13 /* BlockCommentTrivia */;
+ }
+ // just a single slash
+ value += String.fromCharCode(code);
+ pos++;
+ return token = 16 /* Unknown */;
+ // numbers
+ case 45 /* minus */:
+ value += String.fromCharCode(code);
+ pos++;
+ if (pos === len || !isDigit(text.charCodeAt(pos))) {
+ return token = 16 /* 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 = 11 /* 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 = 8 /* TrueKeyword */;
+ case 'false': return token = 9 /* FalseKeyword */;
+ case 'null': return token = 7 /* NullKeyword */;
+ }
+ return token = 16 /* Unknown */;
+ }
+ // some
+ value += String.fromCharCode(code);
+ pos++;
+ return token = 16 /* 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 */:
+ case 47 /* slash */:
+ return false;
+ }
+ return true;
+ }
+ function scanNextNonTrivia() {
+ var result;
+ do {
+ result = scanNext();
+ } while (result >= 12 /* LineCommentTrivia */ && result <= 15 /* 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; },
+ getTokenStartLine: function () { return lineStartOffset; },
+ getTokenStartCharacter: function () { return tokenOffset - prevTokenLineStartOffset; },
+ 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 */;
+ }
+});
projects / dotfiles / .git / blobdiff