On Tue, Oct 08, 2024 at 12:16:42PM +0300, Mikhail Mayorov wrote:
Hi!
I try use CASE and string variable and a have error.... I checked User's guide 2.0 <https://bird.network.cz/?get_doc&f=bird.html&v=20>.... CASE use operator ~. This operator applies to string variables. What am I doing wrong?
Hi Seems like a discrepancy between functionality and documentation. The description of 'case' [1] says: The expression after case can be of any type which can be on the left side of the ~ operator and anything that could be a member of a set is allowed But in fact, only the second part is true, only values that could be members of sets are allowed (with the exception of prefixes, as prefix sets are implemented in a different way). According to [2], that are: int | pair | quad | ip | prefix | ec | lc | enum We probably should fix 'case' for prefixes. Looking at it now, there is also vpnrd, which is allowed in set, but undocumented, and not in switch. In principle, we could extend sets / case to contain strings / bytesrings, but i do not really see use case. [1] https://bird.network.cz/?get_doc&v=20&f=bird-5.html#control-structures [2] https://bird.network.cz/?get_doc&v=20&f=bird-5.html#type-set
[root@wine etc]# cat 123.conf && bird -c ./123.conf -p function teststring(string myvar) -> bool { case myvar { "text A" : print "A"; return true; "text B" : print "B"; return true; "text C" : print "C"; return true; else : print "unknown"; return false; } } bird: ./123.conf:4:12 syntax error, unexpected TEXT
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Regards, Mikhail Mayorov
-- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) "To err is human -- to blame it on a computer is even more so."