const regex = new RegExp(' ^(?P<timestamp>\\d{4}/\\d{2}/\\d{2}\\ \\d{2}:\\d{2}:\\d{2})
\\ \\[(?P<severity>emerg|alert|crit|error|warn|notice|info)\\]
\\ (?P<process_id>\\d+)
\\#(?P<thread_id>\\d+):
\\ \\*(?P<connection_id>\\d+)
\\ (?P<error>.+?)
(?:\\ while\\ (?P<context>.+?))?
,\\ client:\\ (?P<client_ip>\\d+\\.\\d+\\.\\d+\\.\\d+)
,\\ server:\\ (?P<server>.+?)
(?:,\\ request:\\ \\"(?P<request_method>[A-Z]+?)
\\ (?P<request_path>\\/.+?)
\\ (?P<request_protocol>.+?)\\")?
(?:,\\ upstream:\\ \\"(?P<upstream>.+?)\\")?
(?:,\\ host:\\ \\"(?P<host>.+?)\\")?
(?:,\\ referrer:\\ \\"(?P<referrer>.+?)\\")?
$', 's')
const str = `2019/07/11 07:19:30 [error] 934#934: *18897816 open() "/local/nginx/static/ads.txt" failed (2: No such file or directory), client: 85.195.82.90, server: app.digitale-sammlungen.de, request: "GET /ads.txt HTTP/1.1", host: "app.digitale-sammlungen.de"`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
if ((m = regex.exec(str)) !== null) {
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions