matching and extracting...

Shagshag shagshag13 at yahoo.fr
Tue Jan 14 22:24:52 CET 2003


Here is my problem : say i have items ix, some are "to discover" (must
be extracted "-x"), some are "needed" (must be present "-p") and some
are indifferent ("-?"). for example, i have sequence like :

s = "a0 a1 a2 a3 a4 a5 a6 a7 a8"

i would like to check if my sequence is matching sequence like :

m = "a0-p i1-x i2-x i3-? a4-p i5-x i6-? i7-x i8-?"

and get result like :

m is matching s, i1 is a1, i2 is a3, i5 is a5, i7 is a7 (in python a
"true" and a dict)

could python help me ? how should i do this ? must i rely on regexps ?
(entirely or prefer text matching ?) have you any ideas, comments of a
pythonic way to implement this ?

thanks in advance,

s13.




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