22 lines
443 B
Plaintext
22 lines
443 B
Plaintext
/**
|
|
* @import {Options, State} from 'mdast-util-to-markdown'
|
|
*/
|
|
|
|
/**
|
|
* @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
|
|
}
|