davidz2f has asked for the wisdom of the Perl Monks concerning the following question:
I was wondering how to do this in Perl:
Say a pattern is "ABCDEFGHI", how to determine a string matchs any three letters in the right order:
for example, the matched strings are:
ABCXXXXXX;
AXCDXXXXX;
AXXDXFXXX;
....
AXXXXXXHI;
........
XXXXXXGHI;
How to use regular expression for this?
(In the real program, the patern could be >70 letters long and may require matching 35 letters in the right order).
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