Server : nginx/1.18.0 System : Linux localhost 6.14.3-x86_64-linode168 #1 SMP PREEMPT_DYNAMIC Mon Apr 21 19:47:55 EDT 2025 x86_64 User : www-data ( 33) PHP Version : 8.0.16 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /var/www/ecommerce/node_modules/css-tree/lib/lexer/

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var List = require('../common/List');

function getFirstMatchNode(matchNode) {
    if ('node' in matchNode) {
        return matchNode.node;
    }

    return getFirstMatchNode(matchNode.match[0]);
}

function getLastMatchNode(matchNode) {
    if ('node' in matchNode) {
        return matchNode.node;
    }

    return getLastMatchNode(matchNode.match[matchNode.match.length - 1]);
}

function matchFragments(lexer, ast, match, type, name) {
    function findFragments(matchNode) {
        if (matchNode.syntax !== null &&
            matchNode.syntax.type === type &&
            matchNode.syntax.name === name) {
            var start = getFirstMatchNode(matchNode);
            var end = getLastMatchNode(matchNode);

            lexer.syntax.walk(ast, function(node, item, list) {
                if (node === start) {
                    var nodes = new List();

                    do {
                        nodes.appendData(item.data);

                        if (item.data === end) {
                            break;
                        }

                        item = item.next;
                    } while (item !== null);

                    fragments.push({
                        parent: list,
                        nodes: nodes
                    });
                }
            });
        }

        if (Array.isArray(matchNode.match)) {
            matchNode.match.forEach(findFragments);
        }
    }

    var fragments = [];

    if (match.matched !== null) {
        findFragments(match.matched);
    }

    return fragments;
}

module.exports = {
    matchFragments: matchFragments
};