#!/bin/sh
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2018 David Marchand <david.marchand@redhat.com>

section=all
symbol=all
quiet=

while getopts 'S:s:q' name; do
        case $name in
        S)
                [ $section = 'all' ] || {
                        echo 'Cannot list in multiple sections'
                        exit 1
                }
                section=$OPTARG
        ;;
        s)
                [ $symbol = 'all' ] || {
                        echo 'Cannot list multiple symbols'
                        exit 1
                }
                symbol=$OPTARG
        ;;
        q)
                quiet='y'
        ;;
        ?)
                echo 'usage: $0 [-S section] [-s symbol] [-q]'
                exit 1
        ;;
        esac
done

shift $(($OPTIND - 1))

for file in $@; do
        cat "$file" |awk '
        BEGIN {
                current_section = "";
                if ("'$section'" == "all" && "'$symbol'" == "all") {
                        ret = 0;
                } else {
                        ret = 1;
                }
        }
        /^.*\{/ {
                if ("'$section'" == "all" || $1 == "'$section'") {
                        current_section = $1;
                }
        }
        /.*}/ { current_section = ""; }
        /^[^}].*[^:*];/ {
                if (current_section != "") {
                        gsub(";","");
                        if ("'$symbol'" == "all" || $1 == "'$symbol'") {
                                ret = 0;
                                if ("'$quiet'" == "") {
                                        print "'$file' "current_section" "$1;
                                }
                                if ("'$symbol'" != "all") {
                                        exit 0;
                                }
                        }
                }
        }
        END {
                exit ret;
        }'
done