site/node_modules/mdast-util-to-markdown/lib/util/pattern-in-scope.js
2024-10-14 08:09:33 +02:00

43 lines
820 B
JavaScript

/**
* @typedef {import('../types.js').ConstructName} ConstructName
* @typedef {import('../types.js').Unsafe} Unsafe
*/
/**
* @param {Array<ConstructName>} stack
* @param {Unsafe} pattern
* @returns {boolean}
*/
export function patternInScope(stack, pattern) {
return (
listInScope(stack, pattern.inConstruct, true) &&
!listInScope(stack, pattern.notInConstruct, false)
)
}
/**
* @param {Array<ConstructName>} stack
* @param {Unsafe['inConstruct']} list
* @param {boolean} none
* @returns {boolean}
*/
function listInScope(stack, list, none) {
if (typeof list === 'string') {
list = [list]
}
if (!list || list.length === 0) {
return none
}
let index = -1
while (++index < list.length) {
if (stack.includes(list[index])) {
return true
}
}
return false
}