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regular expressions

2002-08-06T13:05:59-04:00

ty very much. that worked. u really helped me alot.

Statistics: Posted by Guest — Tue Aug 06, 2002 1:05 pm

regular expressions

2002-08-06T11:05:18-04:00

You can do it with regular expressions and Tcl (version dependant)

This should work however.

proc is_only_cap_and_num {t} {
regsub -all -- {[A-Z0-9]} $t "" t
if {$t == ""} { return 1 }
return 0
}

Will return 1 is it is only capc or numbers - no spaces, lower case or any other character allowed.

proc is_4th_char_a_num {t} {
regsub -aa -- {[0-9]} [string index $t 3] "" t
if {$t == ""} { return 1 }
return 0
}

Will return 1 with the 4th character is a number.

Both can be done in Tcl, but can be long winded.

Statistics: Posted by ppslim — Tue Aug 06, 2002 11:05 am

regular expressions

2002-08-06T10:35:26-04:00

how do i check whether a certain string contains only capital letters and numbers?
how do i check whether the 4th character in a string is a number?
i heard u can do all these with regular expressions but unfortunately i have no idea how to use them

Statistics: Posted by Guest — Tue Aug 06, 2002 10:35 am