$ npm install @mischnic/json-sourcemap
Generate positions for values in JSON and JSON5 strings.
Inspired by and mostly API-compatible with https://github.com/epoberezkin/json-source-map.
type Position = {
line: number;
column: number;
pos: number;
};
type Mapping =
| {
value: Position;
valueEnd: Position;
}
| {
value: Position;
valueEnd: Position;
key?: Position;
keyEnd?: Position;
};
export function parse(
json: string,
reviver?: (key: any, value: any) => any,
options?: {
tabWidth?: number;
dialect?: "JSON5" | "JSON";
}
): {
data: any;
pointers: Record<string, Mapping>;
};
The default tabWidth
is 4.
The valueEnd
and keyEnd
positions are exclusive. line
, column
and pos
are 0-based.
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