prxmatch - syntax

[Suzy_Cat]

hi there, can anyone explain in details each component in below codes? I have tried google but no luck to find info that would help me to fully understand the use of prxmatch:

if prxmatch('m/^[A-z0-9]\.{4}/', code) then do;

m

/

\

.

{4}

Thanks 🙂

[PGStats · Accepted solution]

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@Suzy_Cat wrote:

hi there, can anyone explain in details each component in below codes? I have tried google but no luck to find info that would help me to fully understand the use of prxmatch:

if prxmatch('m/^[A-z0-9]\.{4}/', code) then do;

m : operation is matching (optional prefix, almost never used)

/ : pattern delimiter, pattern continues until that character is met again

\ : escapes the special meaning of the period character that follows

. : when escaped, matches a period

{4} : match the previous pattern (a period) exactly 4 times

Thanks 🙂

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