23 lines
485 B
Plaintext
23 lines
485 B
Plaintext
|
/**
|
||
|
|
* @typedef {import('../types.js').Options} Options
|
||
|
|
* @typedef {import('../types.js').State} State
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {State} state
|
||
|
|
* @returns {Exclude<Options['fence'], null | undefined>}
|
||
|
|
*/
|
||
|
|
export function checkFence(state) {
|
||
|
|
const marker = state.options.fence || '`'
|
||
|
|
|
||
|
|
if (marker !== '`' && marker !== '~') {
|
||
|
|
throw new Error(
|
||
|
|
'Cannot serialize code with `' +
|
||
|
|
marker +
|
||
|
|
'` for `options.fence`, expected `` ` `` or `~`'
|
||
|
|
)
|
||
|
|
}
|
||
|
|
|
||
|
|
return marker
|
||
|
|
}
|