match logstring with regex - regex

Question

Hopefully I find help here, cause I really don't have a clue about regex. I'm trying to create a logfile viewer with the monaco editor I started from this sample but my logstrings can be multiline and I would like to use a different dateformat. So assuming I have a logstring like this:
[2017-02-03 22:07:56] [info] [Memory] After GC, total memory:737mb, used: 268mb, reclaimed: 293
[2017-02-03 22:10:15] [info] [Memory] After GC, total memory:705mb, used: 247mb, reclaimed: 141
[2017-02-03 22:10:25] [info] [Memory] After GC, total memory:705mb, used: 258mb, reclaimed: 21
[2017-02-03 22:14:34] [warn] [Evaluator] org.mozilla.javascript.EcmaError: Cannot convert null to an object.
Caused by error in Business Rule: 'GlobalHideGlobalUsersFromNonAdmins' at line 5
2:
3: var encodedQueryString = 'sys_domain!=global';
4:
==> 5: var imp = gs.getImpersonatingUserName().toString();
6: if(imp.length > 0) {
7: encodedQueryString = encodedQueryString + '^ORuser_name=' + imp;
8: }
[2017-02-03 22:14:34] [warn] [Evaluator] org.mozilla.javascript.EcmaError: Cannot convert null to an object.
Caused by error in Business Rule: 'GlobalHideGlobalUsersFromNonAdmins' at line 1
==> 1: (function executeRule(current, previous /*null when async*/) {
2:
3: var encodedQueryString = 'sys_domain!=global';
4:
This currently doesn't match my dateformat and it will only match the first line of a logmessage if there are carriage returns it doesn't match to the next logmessage. Any RegexGuru here that could help me out? :)
monaco.languages.setMonarchTokensProvider('log', {
tokenizer: {
root: [
[/\[error.*/, "custom-error"],
[/\[warn.*/, "custom-warn"],
[/\[info.*/, "custom-info"],
[/\[debug.*/, "custom-debug"],
[/\[[a-zA-Z 0-9:]+\]/, "custom-date"],
]
}
});
UPDATE:
So here is the solution I've come up with. Apparently I'm still not able to match multiple lines between to [DATE] Strings. So for now I will just match e.g. [error] as a workaround. Maybe somebody can push me in the right direction...
monaco.languages.setMonarchTokensProvider('log', {
tokenizer: {
root: [
[/\[error\]/, "custom-error"],
[/\[warn\]/, "custom-warn"],
[/\[info\]/, "custom-info"],
[/\[debug\]/, "custom-debug"],
[/^\[\d{4}[./-]\d{2}[./-]\d{2} \d{2}[./:]\d{2}[./:]\d{2}]/, "custom-date"],
]
}
});

Answer 1

I think you might be missing an escape at the end of the pattern in your update - should be "]" for the closing bracket.
Here's a tighter pattern, extracting on what the subgroups of digits all share:
\[(\d{2,4}[\:\-\s\]])+
Could you give an example of what you want to capture in cases of "multiple lines between two [DATE] strings"?
Hope this helps!