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Richard_Jones's avatar
Richard_Jones
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Jun 22, 2011

Different results from TCL regexp and iRules regexp

I am working on an iRule that will validate the value of a parameter only contains a-z, 0-9, and / + =. I have created a regexp pattern that works in TCL, but not in an iRule:     TCL:   ...
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JRahm's avatar
JRahm
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Jun 22, 2011
I'm not seeing the issue: 


when RULE_INIT {
foreach x [list "1234" "asdf" "wqer!" "asfd/"] {
log local0. "Val: $x"
set res [regexp {^(?:[a-z0-9/+=]+)$} $x]
log local0. "Res: $res"
}
}

Jun 21 22:57:12 local/tmm info tmm[5091]: Rule regexp_test : Val: 1234
Jun 21 22:57:12 local/tmm info tmm[5091]: Rule regexp_test : Res: 1
Jun 21 22:57:12 local/tmm info tmm[5091]: Rule regexp_test : Val: asdf
Jun 21 22:57:12 local/tmm info tmm[5091]: Rule regexp_test : Res: 1
Jun 21 22:57:12 local/tmm info tmm[5091]: Rule regexp_test : Val: wqer!
Jun 21 22:57:12 local/tmm info tmm[5091]: Rule regexp_test : Res: 0
Jun 21 22:57:12 local/tmm info tmm[5091]: Rule regexp_test : Val: asfd/
Jun 21 22:57:12 local/tmm info tmm[5091]: Rule regexp_test : Res: 1

Perhaps the variable in the regexp should be $decoded_val?