/m, /s: better mnemonic than "multiple", "single"?

[J Krugman]

For the life of me, I can never remember what the /m and /s regexp
modifiers mean. I know that "s" stands for "single line" and "m"
stands for "multiple lines", but this is of no help: I still have
to look up what that "single" and "multiple" means as far as the
modified regexp's behavior.

TIA,

jill

 

[Randal L. Schwartz]

J> For the life of me, I can never remember what the /m and /s regexp
J> modifiers mean. I know that "s" stands for "single line" and "m"
J> stands for "multiple lines", but this is of no help: I still have
J> to look up what that "single" and "multiple" means as far as the
J> modified regexp's behavior.

I just call them the "s and m options".



print "Just another Perl hacker,"; # the original

 

[Ben Morrow]

For the life of me, I can never remember what the /m and /s regexp
modifiers mean. I know that "s" stands for "single line" and "m"
stands for "multiple lines", but this is of no help: I still have
to look up what that "single" and "multiple" means as far as the
modified regexp's behavior.

/s affects a single metacharacter, '.'.
/m affects multiple metacharaters, '^' and '$'.

Ben