You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
29 lines
773 B
29 lines
773 B
|
|
var processSelectors = require('./process-selectors'); |
|
|
|
/** |
|
* Returns the matches of the first capture group in the given regular |
|
* expression in the specified rules (AST), without repetition |
|
* |
|
* @example |
|
* var rules = getRulesFromCode('[href] { background: red }'); |
|
* var regexp = /\[(\w+)\]/g; // Notice the parenthesis! |
|
* selectorUniqueMatches(rules, regexp); |
|
* //> ['href'] |
|
* |
|
* @param {Object[]} rules |
|
* @param {RegExp} regexp |
|
* @return {string[]} |
|
*/ |
|
function selectorUniqueMatches(rules, regexp) { |
|
var resultSet = {}; |
|
processSelectors(rules, function(selector) { |
|
var match; |
|
while (!!(match = regexp.exec(selector))) { |
|
resultSet[match[1]] = true; |
|
} |
|
}); |
|
return Object.keys(resultSet); |
|
} |
|
|
|
module.exports = selectorUniqueMatches;
|
|
|