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COMPILE_ET(1)		FreeBSD	General	Commands Manual		 COMPILE_ET(1)

NAME
     compile_et	-- error table compiler

SYNOPSIS
     compile_et	file

DESCRIPTION
     Compile_et	converts a table listing error-code names and associated mes-
     sages 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

     end

     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(3)	library	to recognize the error table.

     The various error codes defined are assigned sequentially increasing num-
     bers (starting with a large number	computed 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 pre-
     processor 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.

SEE ALSO
     yacc(1), com_err(3)

     Ken Raeburn, A Common Error Description Library for UNIX.

BUGS
     Since compile_et uses a very simple parser	based on yacc(1), its error
     recovery leaves much to be	desired.

FreeBSD	11.1		       November	22, 1988		  FreeBSD 11.1

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | BUGS

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