perl - Does the greediness of a regex matter after all need matches have been used? -

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the title pretty says all.

i have regex need match names of virtual machines array.

the regex looks this:

/^(?<id> \d+)\s+(?<name> .+?)\s+\[.+\]/mx

after last capture group matched have no need left overs other using them stop match @ correct place characters in capture group correctly matched. matter how greedy left overs if not being used?

here example of string matching, before match.

432    test box åäö!"''*#   [store] test box +w6xdpmo2iq-_''_+iw/test box +w6xdpmo2iq-_''_+iw.vmx   slesguest         vmx-04

here example if string matching, after match.

432    test box åäö!"''*#

like ask above, if need first 2 capture groups matter how greedy uncaptured part @ end is?

there no difference between \s+ , \s+? long preceding quantifier .+? remains lazy; match @ least 1 space , expand needed until following [.

i first said there might difference between \[.+\] , \[.+?\] if more 1 pair of data items can occur on same line. former match in case. noticed you've anchored regex start of line. no, in case, doesn't matter either.


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