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Asked: 2026-06-18T10:10:36+00:00

I could not solve below problem so I used Perl script to parse without

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I could not solve below problem so I used Perl script to parse
without regular expression, but I believe there’s a regular expression for it.

Input String (there’s no newline):

ObjectAddress=120.146.128.250,ObjectName=psyseds-tt1y,ObjectClass=SCM F5,ObjectDescription=,Aliases=psyseds-tt1y.site.com.,NameService=A,PTR,DynamicDNSUpdate=A,PTR,CNAME

Expected Output:

ObjectAddress=120.146.128.250
ObjectName=psyseds-tt1y
ObjectClass=SCM F5
ObjectDescription=
Aliases=psyseds-tt1y.site.com.
NameService=A,PTR
DynamicDNSUpdate=A,PTR,CNAME

I tried some regular expression to parse string, but I failed to parse
since it has multiple items with , separated value.
For example, NameService has two value A,PTR.

Please help me to build regular expression to parse above.
(.+?=.*?) does not pick up multiple values.

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1 Answer

  1. Editorial Team

    In general, it doesn’t seem that your format is unambiguous — something like A=B,C=D could mean either that A maps to B and C maps to D, or that A maps to B,C=D — but for a good approximation, you can write:

    my @output = split /,(?=\w+=)/, $input;

    this will split $input on commas (,), with the added restriction that the comma must be followed by one or more “word characters” (\w — letters, digits, underscores) plus an equals sign. (This is called a lookahead assertion.)

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