problems compiling H.323 ASN.1
Wed Nov 20 10:44:08 CET 2002
Vance Shipley wrote:
> I've been trying out the ASN.1 compiler for the first time and have
> had it failing on some ITU ASN.1 files for H.323. I am wondering
> whether the files I have are incorrect or whether there is a bug in
> the compiler.
> The problem seems to be the comment on line 139:
> manufacturerCode INTEGER(0..65535) -- assigned --
> -- nationally}
> It's not seeing the "}" 'cause it comes at the end of the comment.
> Moving the "}" down one line fixes the problem.
> There are a bunch of these that all need the same fix. Is this bad
> ASN.1 or bad parsing?
It's bad ASN.1 and correct parsing. A double hyphen, '--' comments to
the end of the
line or to the next double hyphen. Thus the "}" above is accidentally
hidden by the
comment, unfortunately this is a rather common error in ASN.1 standard
> Erlang (BEAM) emulator version 5.2 [64-bit] [source] [shared heap] [threads:10]
> Eshell V5.2 (abort with ^G)
> 1> asn1ct:compile("MULTIMEDIA-SYSTEM-CONTROL.asn").
> Erlang ASN.1 version "1.4" compiling "MULTIMEDIA-SYSTEM-CONTROL.asn"
> Compiler Options: 
> syntax error at line 145 in module MULTIMEDIA-SYSTEM-CONTROL.asn:
> got 'MasterSlaveDetermination' expected '}'
/ Bertil Karlsson
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