#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | www.openfoam.com
#    \\/     M anipulation  |
#-------------------------------------------------------------------------------
#     Copyright (C) 2020-2023 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
#
# Script
#     help-filter
#
# Description
#     Feed with output from -help-full.
#
#     For example,
#         blockMesh -help-full | ./help-filter
#
#------------------------------------------------------------------------------

sed -ne '1,/^[Oo]ptions:/d' \
    -e '/^ \{8\}/d;' \
    -e 's/^ *//; /^$/d; /^[^-]/d; /^--/d;' \
    -e '/^-doc-source/d; /^-help-man/d;' \
    -e '/^-hostRoots /d; /^-roots /d;' \
    -e '/^-lib /d; /^-no-libs /d;' \
    -e '/^-[a-z]*-switch /d;' \
    -e 'y/,/ /; s/=.*$/=/;' \
    -e '/^-[^ ]* </{ s/^\(-[^ ]* <\).*$/\1/; p; d }' \
    -e 's/^\(-[^ ]*\).*$/\1/; p; /^-help-full/q;' \
-

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