const regex = new RegExp('^(?P<metric>[a-zA-Z_:][a-zA-Z0-9_:]*]*)(?P<labels>\\{.*\\})?[\\t ]*(?P<value>[0-9E.]*)[\\t ]*(?P<timestamp>[0-9]+)?$', 'gm')
const str = `jvm_buffer_memory_used_bytes{id="direct",} 81920.0
jvm_buffer_memory_used_bytes{id="mapped",} 0.0
jvm_threads_live 23.0
tomcat_global_received_bytes_total{name=" http - nio -8080",} 0.0
tomcat_global_received_bytes_total{name="http-nio-8080",} 0.0
jvm_gc_pause_seconds_count{action="end of minor GC",cause="Allocation Failure",} 7.0
jvm_gc_pause_seconds_sum{action="end of minor GC",cause="Allocation Failure",} 0.232
jvm_gc_pause_seconds_count{action="end of minor GC",cause="Metadata GC Threshold",} 1.0
jvm_gc_pause_seconds_sum{action="end of minor GC",cause="Metadata GC Threshold",} 0.01
jvm_gc_pause_seconds_count{action="end of major GC",cause="Metadata GC Threshold",} 1.0
jvm_gc_pause_seconds_sum{action="end of major GC",cause="Metadata GC Threshold",} 0.302
jvm_gc_pause_seconds_max{action="end of minor GC",cause="Allocation Failure",} 0.0
jvm_gc_pause_seconds_max{action="end of minor GC",cause="Metadata GC Threshold",} 0.0
jvm_gc_pause_seconds_max{action="end of major GC",cause="Metadata GC Threshold",} 0.0
jvm_gc_live_data_size_bytes 5.0657472E7
http_requests_total{method="post",code="200"} 1027 1395066363000
#http_requests_total{method="post",code="200"} 1027 1395066363000
process_cpu_seconds_total 0`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// 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