Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | 33x 33x 33x 1x 33x 33x 33x 21x 33x 6x 33x 50x 50x 42x 30x 22x 16x 1x 1x 15x 1x 1x 14x 1x 1x 13x 1x 1x 12x 1x 1x 11x 1x 1x 10x 33x 22x 22x 22x 22x 5x 5x 22x 9x 9x 13x 10x 10x 4x 3x 33x 8x 8x 8x 8x 8x 11x 11x 10x 7x 7x 7x 7x 3x 4x 3x 3x 3x 6x 6x 33x 6x 6x 6x 6x 10x 4x 4x 1x 6x 2x 4x 33x 10x 10x 10x 10x 8x 8x 8x 6x 33x 83x 2x 33x 1x | import { Allow } from "./options";
export * from "./options";
class PartialJSON extends Error {}
class MalformedJSON extends Error {}
/**
* Parse incomplete JSON
* @param {string} jsonString Partial JSON to be parsed
* @param {number} allowPartial Specify what types are allowed to be partial, see {@link Allow} for details
* @returns The parsed JSON
* @throws {PartialJSON} If the JSON is incomplete (related to the `allow` parameter)
* @throws {MalformedJSON} If the JSON is malformed
*/
function parseJSON(jsonString: string, allowPartial: number = Allow.ALL): any {
Iif (typeof jsonString !== "string") {
throw new TypeError(`expecting str, got ${typeof jsonString}`);
}
Iif (!jsonString.trim()) {
throw new Error(`${jsonString} is empty`);
}
return _parseJSON(jsonString.trim(), allowPartial);
}
const _parseJSON = (jsonString: string, allow: number) => {
const length = jsonString.length;
let index = 0;
const markPartialJSON = (msg: string) => {
throw new PartialJSON(`${msg} at position ${index}`);
};
const throwMalformedError = (msg: string) => {
throw new MalformedJSON(`${msg} at position ${index}`);
};
const parseAny: () => any = () => {
skipBlank();
if (index >= length) markPartialJSON("Unexpected end of input");
if (jsonString[index] === '"') return parseStr();
if (jsonString[index] === "{") return parseObj();
if (jsonString[index] === "[") return parseArr();
if (jsonString.substring(index, index + 4) === "null" || (Allow.NULL & allow && length - index < 4 && "null".startsWith(jsonString.substring(index)))) {
index += 4;
return null;
}
if (jsonString.substring(index, index + 4) === "true" || (Allow.BOOL & allow && length - index < 4 && "true".startsWith(jsonString.substring(index)))) {
index += 4;
return true;
}
if (jsonString.substring(index, index + 5) === "false" || (Allow.BOOL & allow && length - index < 5 && "false".startsWith(jsonString.substring(index)))) {
index += 5;
return false;
}
if (jsonString.substring(index, index + 8) === "Infinity" || (Allow.INFINITY & allow && length - index < 8 && "Infinity".startsWith(jsonString.substring(index)))) {
index += 8;
return Infinity;
}
if (jsonString.substring(index, index + 9) === "-Infinity" || (Allow._INFINITY & allow && 1 < length - index && length - index < 9 && "-Infinity".startsWith(jsonString.substring(index)))) {
index += 9;
return -Infinity;
}
if (jsonString.substring(index, index + 3) === "NaN" || (Allow.NAN & allow && length - index < 3 && "NaN".startsWith(jsonString.substring(index)))) {
index += 3;
return NaN;
}
return parseNum();
};
const parseStr: () => string = () => {
const start = index;
let escape = false;
index++; // skip initial quote
while (index < length && (jsonString[index] !== '"' || (escape && jsonString[index - 1] === "\\"))) {
escape = jsonString[index] === "\\" ? !escape : false;
index++;
}
if (jsonString.charAt(index) == '"') {
try {
return JSON.parse(jsonString.substring(start, ++index - Number(escape)));
} catch (e) {
throwMalformedError(String(e));
}
} else if (Allow.STR & allow) {
try {
return JSON.parse(jsonString.substring(start, index - Number(escape)) + '"');
} catch (e) {
// SyntaxError: Invalid escape sequence
return JSON.parse(jsonString.substring(start, jsonString.lastIndexOf("\\")) + '"');
}
}
markPartialJSON("Unterminated string literal");
};
const parseObj = () => {
index++; // skip initial brace
skipBlank();
const obj: Record<string, any> = {};
try {
while (jsonString[index] !== "}") {
skipBlank();
if (index >= length && Allow.OBJ & allow) return obj;
const key = parseStr();
skipBlank();
index++; // skip colon
try {
const value = parseAny();
obj[key] = value;
} catch (e) {
if (Allow.OBJ & allow) return obj;
else throw e;
}
skipBlank();
Iif (jsonString[index] === ",") index++; // skip comma
}
} catch (e) {
Iif (Allow.OBJ & allow) return obj;
else markPartialJSON("Expected '}' at end of object");
}
index++; // skip final brace
return obj;
};
const parseArr = () => {
index++; // skip initial bracket
const arr = [];
try {
while (jsonString[index] !== "]") {
arr.push(parseAny());
skipBlank();
if (jsonString[index] === ",") {
index++; // skip comma
}
}
} catch (e) {
if (Allow.ARR & allow) {
return arr;
}
markPartialJSON("Expected ']' at end of array");
}
index++; // skip final bracket
return arr;
};
const parseNum = () => {
Eif (index === 0) {
Iif (jsonString === "-") throwMalformedError("Not sure what '-' is");
try {
return JSON.parse(jsonString);
} catch (e) {
Eif (Allow.NUM & allow)
try {
return JSON.parse(jsonString.substring(0, jsonString.lastIndexOf("e")));
} catch (e) {}
throwMalformedError(String(e));
}
}
const start = index;
if (jsonString[index] === "-") index++;
while (jsonString[index] && ",]}".indexOf(jsonString[index]) === -1) index++;
if (index == length && !(Allow.NUM & allow)) markPartialJSON("Unterminated number literal");
try {
return JSON.parse(jsonString.substring(start, index));
} catch (e) {
if (jsonString.substring(start, index) === "-") markPartialJSON("Not sure what '-' is");
try {
return JSON.parse(jsonString.substring(start, jsonString.lastIndexOf("e")));
} catch (e) {
throwMalformedError(String(e));
}
}
};
const skipBlank = () => {
while (index < length && " \n\r\t".includes(jsonString[index])) {
index++;
}
};
return parseAny();
};
const parse = parseJSON;
export { parse, parseJSON, PartialJSON, MalformedJSON, Allow };
|