in reply to Match and extract three characters from the middle of a string
FWIW, these are my most frequently used resources for constructing/understanding regexes:
Mastering Regular Expressions
perlrequick
perlretut
perlre
YAPE::Regex::Explain
GraphViz::Regex
The Regex Coach (Win32 only, IIRC)
HTH,
|
|---|