Forum Discussion
Carl_Weiss_1340
Nimbostratus
NimbostratusString Scan question ... trying to do something really simple
Its just not working...
Given a string - "/part1/part2/part3/part4"
I want the result to be:
p1 = part1
p2 = part2
p3 = /part3/part4
which led me to write the following:
when HTTP_REQU...
String matchers are "greedy", so %s will match everything up to the next whitespace. That's why
/%s/%s/%swon't work; everything ends up in$part1.The second construct should work. Indeed, on 11.5.4, I do the following:
when CLIENT_ACCEPTED { set path "/foo/bar/baz/bing" set x [scan $path {/%[^/]/%[^/]/%s} part1 part2 part3] if { $x == 3 } { log local0. "part1 = $part1; part2 = $part2; part3 = $part3" } else { log local0. "scan returned ($x) elements" } }And it works as I expect. In the logs, I get:
Jun 27 19:00:01 b201 info tmm[13446]: Rule /Common/test_scan : part1 = foo; part2 = bar; part3 = baz/bing
String matchers are "greedy", so %s will match everything up to the next whitespace. That's why /%s/%s/%s won't work; everything ends up in $part1.
The second construct should work. Indeed, on 11.5.4, I do the following:
when CLIENT_ACCEPTED {
set path "/foo/bar/baz/bing"
set x [scan $path {/%[^/]/%[^/]/%s} part1 part2 part3]
if { $x == 3 } {
log local0. "part1 = $part1; part2 = $part2; part3 = $part3"
}
else {
log local0. "scan returned ($x) elements"
}
}
And it works as I expect. In the logs, I get:
Jun 27 19:00:01 b201 info tmm[13446]: Rule /Common/test_scan : part1 = foo; part2 = bar; part3 = baz/bing
Carl_Weiss_1340sorry for the tardiness - I tried the alternative again and viola! it worked (not sure what happened when I tested it before).