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(function (Prism) {
/**
* Replaces all placeholders "<<n>>" of given pattern with the n-th replacement (zero based).
*
* Note: This is a simple text based replacement. Be careful when using backreferences!
*
* @param {string} pattern the given pattern.
* @param {string[]} replacements a list of replacement which can be inserted into the given pattern.
* @returns {string} the pattern with all placeholders replaced with their corresponding replacements.
* @example replace(/a<<0>>a/.source, [/b+/.source]) === /a(?:b+)a/.source
*/
function replace(pattern, replacements) {
return pattern.replace(/<<(\d+)>>/g, function (m, index) {
return '(?:' + replacements[+index] + ')';
});
}
/**
* @param {string} pattern
* @param {string[]} replacements
* @param {string} [flags]
* @returns {RegExp}
*/
function re(pattern,
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