RegEx return substring from matched string

Question

I'm pretty unfamiliar with regex. I would like to run a regex search against lines like:

if env == production
    #define DBHOST "serv1.ns.com"
    #define DBSLAVEHOST "serv2.ns.com"
    #define DBHOSTAUX "serv3.ns.com"
endif

I have the following which finds the lines I want: ^(?=.*\\bDB)(?=.*HOST).*, but I'm not positive how to match and return whatever the last word in the line is -- i.e., serv1.ns.com, serv2.ns.com, serv3.ns.com

will the desired output be in double quotes in all instances? — Pierre L
– Pierre L, Commented May 6, 2015 at 19:45

SanD · Accepted Answer · 2015-05-06 20:06:19Z

1

You can use this regex:

^\s*#define\s+[A-Z]*DB[A-Z]*HOST[A-Z]*\s+"?(.*?)"?$

Sample

edited May 6, 2015 at 20:06

answered May 6, 2015 at 19:50

SanD

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3 Comments

MrDuk Over a year ago

Thanks - I want to make sure it contains both DB and HOST though.. so this is almost what I want right?

MrDuk Over a year ago

Does this actually return the result serv1.ns.com, etc.? Which part of your regex is the value portion?

SanD Over a year ago

@MrDuk the first capturing group is the value, you can see it on the sample site on the right

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