I found a message from Randal Schwartz, Message-ID: <[EMAIL PROTECTED]>#1/1
which gave a regular expression for a valid Unix name,
/^(?=.*?\D)[a-z\d]+$/
That works but why does it work?
/
^ # Start of a string
(?= # 0 or 1 instance of
.*? # anything but a newline
\D # Non digit
) #
[a-z\d]+ # All match a-z and any digit at
$ # End of a string
/
I tried breaking it down like above but it still doesn't say "Must not be all
numbers and letters must be all lowercase"
Any help in turning that re into plain words would be appreciated
TIA
Owen
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