27 lines
572 B
JavaScript
27 lines
572 B
JavaScript
'use strict';
|
|
|
|
const { isAtRule } = require('./typeGuards');
|
|
|
|
const IS_UNICODE_RANGE = /^unicode-range$/i;
|
|
const IS_AT_FONT_FACE = /^font-face$/i;
|
|
|
|
/**
|
|
* Check whether a declaration is the `unicode-range` descriptor of an `@font-face` rule.
|
|
*
|
|
* @param {import('postcss').Declaration} decl
|
|
* @returns {boolean}
|
|
*/
|
|
module.exports = function isUnicodeRangeDescriptor(decl) {
|
|
if (!IS_UNICODE_RANGE.test(decl.prop)) {
|
|
return false;
|
|
}
|
|
|
|
const parent = decl.parent;
|
|
|
|
if (!parent || !isAtRule(parent)) {
|
|
return false;
|
|
}
|
|
|
|
return IS_AT_FONT_FACE.test(parent.name);
|
|
};
|