185 lines
5.3 KiB
JavaScript
185 lines
5.3 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.parseJsonString = exports.parseJsonNumber = exports.parseJson = void 0;
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const rxParseJson = /position\s(\d+)(?: \(line \d+ column \d+\))?$/;
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function parseJson(s, pos) {
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let endPos;
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parseJson.message = undefined;
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let matches;
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if (pos)
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s = s.slice(pos);
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try {
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parseJson.position = pos + s.length;
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return JSON.parse(s);
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}
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catch (e) {
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matches = rxParseJson.exec(e.message);
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if (!matches) {
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parseJson.message = "unexpected end";
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return undefined;
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}
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endPos = +matches[1];
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const c = s[endPos];
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s = s.slice(0, endPos);
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parseJson.position = pos + endPos;
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try {
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return JSON.parse(s);
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}
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catch (e1) {
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parseJson.message = `unexpected token ${c}`;
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return undefined;
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}
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}
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}
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exports.parseJson = parseJson;
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parseJson.message = undefined;
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parseJson.position = 0;
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parseJson.code = 'require("ajv/dist/runtime/parseJson").parseJson';
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function parseJsonNumber(s, pos, maxDigits) {
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let numStr = "";
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let c;
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parseJsonNumber.message = undefined;
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if (s[pos] === "-") {
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numStr += "-";
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pos++;
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}
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if (s[pos] === "0") {
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numStr += "0";
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pos++;
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}
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else {
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if (!parseDigits(maxDigits)) {
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errorMessage();
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return undefined;
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}
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}
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if (maxDigits) {
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parseJsonNumber.position = pos;
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return +numStr;
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}
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if (s[pos] === ".") {
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numStr += ".";
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pos++;
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if (!parseDigits()) {
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errorMessage();
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return undefined;
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}
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}
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if (((c = s[pos]), c === "e" || c === "E")) {
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numStr += "e";
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pos++;
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if (((c = s[pos]), c === "+" || c === "-")) {
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numStr += c;
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pos++;
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}
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if (!parseDigits()) {
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errorMessage();
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return undefined;
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}
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}
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parseJsonNumber.position = pos;
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return +numStr;
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function parseDigits(maxLen) {
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let digit = false;
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while (((c = s[pos]), c >= "0" && c <= "9" && (maxLen === undefined || maxLen-- > 0))) {
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digit = true;
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numStr += c;
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pos++;
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}
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return digit;
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}
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function errorMessage() {
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parseJsonNumber.position = pos;
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parseJsonNumber.message = pos < s.length ? `unexpected token ${s[pos]}` : "unexpected end";
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}
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}
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exports.parseJsonNumber = parseJsonNumber;
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parseJsonNumber.message = undefined;
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parseJsonNumber.position = 0;
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parseJsonNumber.code = 'require("ajv/dist/runtime/parseJson").parseJsonNumber';
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const escapedChars = {
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b: "\b",
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f: "\f",
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n: "\n",
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r: "\r",
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t: "\t",
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'"': '"',
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"/": "/",
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"\\": "\\",
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};
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const CODE_A = "a".charCodeAt(0);
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const CODE_0 = "0".charCodeAt(0);
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function parseJsonString(s, pos) {
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let str = "";
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let c;
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parseJsonString.message = undefined;
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// eslint-disable-next-line no-constant-condition, @typescript-eslint/no-unnecessary-condition
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while (true) {
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c = s[pos++];
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if (c === '"')
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break;
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if (c === "\\") {
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c = s[pos];
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if (c in escapedChars) {
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str += escapedChars[c];
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pos++;
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}
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else if (c === "u") {
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pos++;
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let count = 4;
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let code = 0;
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while (count--) {
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code <<= 4;
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c = s[pos];
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// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
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if (c === undefined) {
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errorMessage("unexpected end");
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return undefined;
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}
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c = c.toLowerCase();
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if (c >= "a" && c <= "f") {
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code += c.charCodeAt(0) - CODE_A + 10;
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}
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else if (c >= "0" && c <= "9") {
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code += c.charCodeAt(0) - CODE_0;
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}
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else {
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errorMessage(`unexpected token ${c}`);
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return undefined;
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}
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pos++;
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}
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str += String.fromCharCode(code);
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}
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else {
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errorMessage(`unexpected token ${c}`);
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return undefined;
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}
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// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
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}
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else if (c === undefined) {
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errorMessage("unexpected end");
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return undefined;
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}
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else {
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if (c.charCodeAt(0) >= 0x20) {
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str += c;
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}
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else {
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errorMessage(`unexpected token ${c}`);
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return undefined;
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}
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}
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}
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parseJsonString.position = pos;
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return str;
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function errorMessage(msg) {
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parseJsonString.position = pos;
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parseJsonString.message = msg;
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}
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}
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exports.parseJsonString = parseJsonString;
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parseJsonString.message = undefined;
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parseJsonString.position = 0;
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parseJsonString.code = 'require("ajv/dist/runtime/parseJson").parseJsonString';
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//# sourceMappingURL=parseJson.js.map
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