yaz-asncomp — YAZ ASN.1 compiler
yaz-asncomp [-v] [-c ] [cfile-h ] [hfile-p ] [pfile-d ] [config-I ] [includeout-i ] [includedir-m ] [filename]module
yaz-asncomp is an ASN.1 compiler that
reads an ASN.1 specification in filename
and produces C/C++ definitions and BER encoders/decoders for it.
The produced C/C++ code and header files uses the ODR module of YAZ which is a library that encodes/decodes/prints BER packages. yaz-asncomp allows you to specify name of resulting source via options. Alternatively, you can specify a DEFINITIONS file, which provides customized output to many output files - if the ASN.1 specification file consists of many modules.
This utility is written in Tcl. Any version of Tcl should work.
-v
Makes the ASN.1 compiler print more verbose about the various stages of operations.
-c
cfileSpecifies the name of the C/C++ file with encoders/decoders.
-h
hfileSpecifies the name of header file with definitions.
-p
pfileSpecifies the name of the a private header file with definitions. By default all definitions are put in header file (option -h).
-d
dfileSpecifies the name of a definitions file.
-I
ioutSpecifies first part of directory in which header files are written.
-i
idirSpecifies second part of directory in which header files are written.
-m
moduleSpecifies that ASN.1 compiler should only process the module given. If this option is not specified, all modules in the ASN.1 file are processed.
The definitions file is really a Tcl script but follows traditional rules for Shell like configuration files. That is # denotes the beginning of a comment. Definitions are line oriented. The definitions files usually consist of a series of variable assignments of the form:
set name value
Available variables are:
default-prefixSets prefix for names in the produced output. The value consists of three tokens: C function prefix, C typedef prefix and preprocessor prefix respectively.
prefix(module)
This value sets prefix values for module
module.
The value has same form as default-prefix.
filename(module)
Specifies filename for C/header file for module
module.
init(module,h)
Code fragment to be put in first part of public header for module
module.
body(module,h)
Code fragment to be put in last part of public header for module
module (trailer).
init(module,c)
Code fragment to be put in first part of C based encoder/decoder for
module module.
body(module,c)
Code fragment to be put in last part of C based encoder/decoder for
module module (trailer).
map(module,name)
Maps ASN.1 type in module module
of name to value.
membermap(module,name,member)
Maps member member in SEQUENCE/CHOICE of
name in module
module to value.
The value consists of one or two tokens.
First token is name of C preprocessor part. Second token
is resulting C member name. If second token is omitted
the value (one token) is both preprocessor part and
C struct,union.
unionmap(module,name,member)
Maps member member in CHOICE of
name in module
module to value.
Value consists of two or three tokens. The first token
is name of the integer in the union that
is used as selector for the union itself.
The second token is name of the union.
The third token overrides the name of the CHOICE member;
if omitted the member name is used.