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COMPILE_ET(1)                                                    COMPILE_ET(1)

       compile_et - error table compiler

       compile_et file

       Compile_et  converts a table listing error-code names and associated messages into a C source file suitable for
       use with the com_err(3) library.

       The source file name must end with a suffix of ''.et''; the file consists of a declaration supplying  the  name
       (up to four characters long) of the error-code table:

       error_table name

       followed by up to 256 entries of the form:

       error_code name, " string "

       and a final


       to indicate the end of the table.

       The  name  of the table is used to construct the name of a subroutine initialize_XXXX_error_table which must be
       called in order for the com_err library to recognize the error table.

       The various error codes defined are assigned sequentially increasing numbers (starting with a large number com-
       puted  as  a  hash function of the name of the table); thus for compatibility it is suggested that new codes be
       added only to the end of an existing table, and that no codes be removed from tables.

       The names defined in the table are placed into a C header file with preprocessor directives  defining  them  as
       integer constants of up to 32 bits in magnitude.

       A  C  source  file  is also generated which should be compiled and linked with the object files which reference
       these error codes; it contains the text of the messages and the initialization subroutine.  Both C  files  have
       names derived from that of the original source file, with the ''.et'' suffix replaced by ''.c'' and ''.h''.

       A  ''#''  in the source file is treated as a comment character, and all remaining text to the end of the source
       line will be ignored.

       Since the original compile_et uses a very simple parser based on yacc(1), and  this  current  version  of  com-
       pile_et uses an awk/sed combination of scripts, its error recovery leaves much to be desired.

       com_err (3).

       Ken Raeburn, "A Common Error Description Library for UNIX".

SIPB                              30 Mar 1998                    COMPILE_ET(1)