NAME

       errhdr - produce a C header file from a set of messages

SYNOPSIS

       errhdr [-2] [-s] msgfile [hdrfile]

DESCRIPTION

       errhdr  reads  a  file  describing error codes and corresponding messages and produces a C
       header file, either on standard output or in hdrfile.

       The input file has a simple text-based format; one file (errmsg/valid.msg  in  the  source
       tree) starts

       MODULE valid
       $$ SEQ_INST, 1
       $^   ExtNotAllowed, 1
       # This is a comment
       A Bioseq "extension" is used for special classes of Bioseq. This class of
       Bioseq should not have one but it does. This is probably a software error.

       $^   ExtBadOrMissing, 2
       This class of Bioseq requires an "extension" but it is missing or of the
       wrong type. This is probably a software error.

       (Detailed descriptions are optional, and no "end" lines of any sort are necessary.)

OPTIONS

       A summary of options is included below.

       -2     Code, subcode tuples

       -s     Short subcode defines

AUTHOR

       The National Center for Biotechnology Information.