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<refentry id="yaz-asncomp">
 <refentryinfo>
  <productname>YAZ</productname>
  <productnumber>&version;</productnumber>
 </refentryinfo>
 
 <refmeta>
  <refentrytitle>yaz-asncomp</refentrytitle>
  <manvolnum>1</manvolnum>
 </refmeta>
 
 <refnamediv>
  <refname>yaz-asncomp</refname>
  <refpurpose>YAZ ASN.1 compiler</refpurpose>
 </refnamediv>
 
 <refsynopsisdiv>
  <cmdsynopsis>
   <command>yaz-asncomp</command>
   <arg choice="opt"><option>-v</option></arg>
   <arg choice="opt"><option>-c <replaceable>cfile</replaceable></option></arg>
   <arg choice="opt"><option>-h <replaceable>hfile</replaceable></option></arg>
   <arg choice="opt"><option>-p <replaceable>pfile</replaceable></option></arg>
   <arg choice="opt"><option>-d <replaceable>config</replaceable></option></arg>
   <arg choice="opt"><option>-I <replaceable>includeout</replaceable></option></arg>
   <arg choice="opt"><option>-i <replaceable>includedir</replaceable></option></arg>
   <arg choice="opt"><option>-m <replaceable>module</replaceable></option></arg>
   <arg choice="opt">filename</arg>
  </cmdsynopsis>
  
 </refsynopsisdiv>
  <refsect1><title>DESCRIPTION</title>
  <para>
   <command>yaz-asncomp</command> is an ASN.1 compiler that
   reads an ASN.1 specification in <replaceable>filename</replaceable>
   and produces C/C++ definitions and BER encoders/decoders for it.
  </para>
  <para>
   The produced C/C++ code and header files uses the ODR module of YAZ
   which is a library that encodes/decodes/prints BER packages.
   <command>yaz-asncomp</command> allows you to specify name of
   resulting source via options. Alternatively, you can specify
   a DEFINISIONS file, which provides customized output to
   many output files - if the ASN.1 specification file consists
   of many modules.
  </para>
  <para>
   This utility is written in Tcl. Any version of Tcl should work.
  </para>
  </refsect1>
    <refsect1>
  <title>OPTIONS</title>
  <variablelist>
   <varlistentry><term><literal>-v </literal>
 </term>
    <listitem>
     <para>
      Makes the ASN.1 compiler print more verbose about the
      various stages of operations. 
     </para>
    </listitem>
   </varlistentry>
   
   <varlistentry><term><literal>-c </literal>
     <replaceable>cfile</replaceable></term>
    <listitem><para>
      Specifies the name of the C/C++ file with encoders/decoders.
     </para></listitem>
   </varlistentry>
   
   <varlistentry><term><literal>-h </literal>
     <replaceable>hfile</replaceable></term>
    <listitem><para>
      Specifies the name of header file with definitions.
     </para></listitem>
   </varlistentry>
   
   <varlistentry><term><literal>-p </literal>
     <replaceable>pfile</replaceable></term>
    <listitem><para>
      Specifies the name of the a private header file with
      definitions. By default all definitions are put
      in header file (option -h).
     </para></listitem>
   </varlistentry>
   
   <varlistentry><term><literal>-d </literal>
     <replaceable>dfile</replaceable></term>
    <listitem><para>
      Specifies the name of a definitions file.
     </para></listitem>
   </varlistentry>
   
   <varlistentry><term><literal>-I </literal>
     <replaceable>iout</replaceable></term>
    <listitem><para>
      Specifies first part of directory in which header files
      are written.
     </para></listitem>
   </varlistentry>
   
   <varlistentry><term><literal>-i </literal>
     <replaceable>idir</replaceable></term>
    <listitem><para>
      Specifies second part of directory in which header files
      are written.
     </para></listitem>
   </varlistentry>
   
   <varlistentry><term><literal>-m </literal>
     <replaceable>module</replaceable></term>
    <listitem><para>
      Specifies 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.
     </para></listitem>
   </varlistentry>
   
  </variablelist>
 </refsect1>
 <refsect1><title>DEFINITIONS FILE</title>
  <para>
   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 consists of
   a series of variable assignments of the form:
  </para>
  <para>
   <literal>set</literal> <replaceable>name</replaceable> <replaceable>value</replaceable>
  </para>
  <para>
   Available variables are:
   <variablelist>
    
    <varlistentry><term><literal>default-prefix</literal></term>
     <listitem><para>
       Sets prefix for names in the produced output.
       The value consists of three tokens: C function prefix,
       C typedef prefix and preprocessor prefix respectively.
      </para></listitem>
    </varlistentry>
    
    <varlistentry><term><literal>prefix(</literal><replaceable>module</replaceable><literal>)</literal></term>
     <listitem><para>
       This value sets prefix values for module
       <replaceable>module</replaceable>.
       The value has same form as <literal>default-prefix</literal>.
      </para></listitem>
    </varlistentry>
    
    <varlistentry><term><literal>filename(</literal><replaceable>module</replaceable><literal>)</literal></term>
     <listitem><para>
       Specifies filename for C/header file for module
       <replaceable>module</replaceable>.
      </para></listitem>
    </varlistentry>
    
    <varlistentry><term><literal>init(</literal><replaceable>module</replaceable><literal>,h)</literal></term>
     <listitem><para>
       Code fragment to be put in first part of public header for module 
    <replaceable>module</replaceable>.
      </para></listitem>
    </varlistentry>
    
    <varlistentry><term><literal>body(</literal><replaceable>module</replaceable><literal>,h)</literal></term>
     <listitem><para>
       Code fragment to be put in last part of public header for module 
    <replaceable>module</replaceable> (trailer).
      </para></listitem>
    </varlistentry>

    <varlistentry><term><literal>init(</literal><replaceable>module</replaceable><literal>,c)</literal></term>
     <listitem><para>
       Code fragment to be put in first part of C based encoder/decoder for
       module <replaceable>module</replaceable>.
      </para></listitem>
    </varlistentry>
    
    <varlistentry><term><literal>body(</literal><replaceable>module</replaceable><literal>,c)</literal></term>
     <listitem><para>
       Code fragment to be put in last part of C based encoder/decoder for
       module <replaceable>module</replaceable> (trailer).
      </para></listitem>
    </varlistentry>
    
    <varlistentry><term><literal>map(</literal><replaceable>module</replaceable><literal>,</literal><replaceable>name</replaceable><literal>)</literal></term>
     <listitem><para>
       Maps ASN.1 type in module <replaceable>module</replaceable> 
       of <replaceable>name</replaceable> to value.
      </para></listitem>
    </varlistentry>
    
    <varlistentry><term><literal>membermap(</literal><replaceable>module</replaceable><literal>,</literal><replaceable>name</replaceable><literal>,</literal><replaceable>member</replaceable><literal>)</literal></term>
     <listitem><para>
       Maps member <replaceable>member</replaceable> in SEQUENCE/CHOICE of
       <replaceable>name</replaceable> in module
       <replaceable>module</replaceable> 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 <literal>struct</literal>,<literal>union</literal>.
      </para></listitem>
    </varlistentry>
    
    <varlistentry><term><literal>unionmap(</literal><replaceable>module</replaceable><literal>,</literal><replaceable>name</replaceable><literal>,</literal><replaceable>member</replaceable><literal>)</literal></term>
     <listitem><para>
       Maps member <replaceable>member</replaceable> in CHOICE of
       <replaceable>name</replaceable> in module
       <replaceable>module</replaceable> to value.
       Value consists of to or three tokens. The first token
       is name of the integer in the <literal>union</literal> that
       is used as selector for the <literal>union</literal> itself.
       The second token is name of the <literal>union</literal>.
       The third token overrides the name of the CHOICE member;
       if omitted the member name is used.
      </para></listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1><title>FILES</title>
  <para>
   <filename>/usr/share/yaz/z39.50/z.tcl</filename>
  </para>
  <para>
   <filename>/usr/share/yaz/z39.50/*.asn</filename>
  </para>
 </refsect1>
 <refsect1><title>SEE ALSO</title>
  <para>
   <citerefentry>
    <refentrytitle>yaz</refentrytitle>
    <manvolnum>7</manvolnum></citerefentry>
  </para>
  <para>
   Section "The ODR Module" in the YAZ manual.
  </para>
 </refsect1>
</refentry>

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