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Need help in writing regex (PCRE)

pal_sumit1
Path Finder

HI All,

We have events where some fields are having multiple value , below is the example

event1 :
123,s@gmail.com,abc
here
id = 123
email = s@gmail.com
name = abc

Event2 :
124,g@gmail.com,f@gmail.com,bcd

Here
id = 124
email = g@gmail.com,f@gmail.com
name = bcd
So the email field is not fixed it may have multiple values separated by commas , I need help in writing regex(pcre) for these types of data .

Thanks In advance

Tags (2)
0 Karma

gcusello
Legend

Hi pal_sumit1,
if you have only three fields with the possibility that the second one (email) could have more values, or, in a more general use case, you have only one field that could have more than values and this field is an email, you could use three different regexes for the three fields:

| rex "^(?<id>[^,]*),"

that you can test at https://regex101.com/r/MtUP2K/1

| rex max_match=100 ",(?<email>[^@]*@[^,]*),"

that you can test at https://regex101.com/r/MtUP2K/2

| rex ".*,(?<name>.*)$"

that you can test at https://regex101.com/r/MtUP2K/3

Ciao.
Giuseppe

0 Karma

pal_sumit1
Path Finder

Hi gcusello,

The no. of fields are more than 30 .. the above regex will not work for that many fields and I need to add this regex in props.conf

0 Karma

gcusello
Legend

Hi pal_sumit1,
The no of fields isn't a problem for this approach, the mandatory rules are:

  • there's only one field with multivalue,
  • this field has an identifiable and unic (in your logs) format (like email) so it's possible to indentify multiple values.

Anyway you can put them in props.conf, otherwise (as a workaround) you can put in props all the other fields and use rex command only for the multivalue field.

Ciao.
Giuseppe

0 Karma
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