.TH ERRHDR 1 2001-10-05 NCBI "NCBI Tools User's Manual"
.SH NAME
errhdr \- produce a C header file from a set of messages
.SH SYNOPSIS
.B errhdr
[\|\fB\-2\fP\|]
[\|\fB\-s\fP\|]
\fImsgfile\fP
[\|\fIhdrfile\fP\|]
.SH DESCRIPTION
\fBerrhdr\fP reads a file describing error codes and corresponding
messages and produces a C header file, either on standard output or in
\fIhdrfile\fP.
.PP
The input file has a simple text-based format; one file
(errmsg/valid.msg in the source tree) starts
.PP
.nf
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.
.fi
.PP
(Detailed descriptions are optional, and no "end" lines of any sort
are necessary.)
.SH OPTIONS
A summary of options is included below.
.TP
\fB\-2\fP
Code, subcode tuples
.TP
\fB\-s\fP
Short subcode defines
.SH AUTHOR
The National Center for Biotechnology Information.