#!/usr/bin/env perl
#
# txt2cstr - a tool converting a text file into char[].
#
# Copyright (C) 2021 Masatake YAMATO
# Copyright (C) 2021 Red Hat Inc.
#

use File::Basename;

sub show_help {
    print<<EOF;
Usage:
	$0 --help
	$0 INPUT.txt > OUTPUT.c
EOF
}

sub convert {
    my $input = $_[0];
    my $name  = basename $input;

    $name =~ s/\.[a-z]+$//g;

    open(INPUT, "< " . $input) or die("faild to open " . $input);

    print "const char ctags$name []=\n";
    while (<INPUT>) {
	chop;
	$_ =~ s/\\/\\\\/g;
	$_ =~ s/\"/\\\"/g;
	print '"' . "$_" . '\\n"' . "\n";
    }
    print ";\n";

    close (INPUT);
}

sub main {
    my $input;

    for (@_) {
	if ( ($_ eq '-h') || ($_ eq '--help') ) {
	    show_help;
	    exit 0;
	} elsif ( /^-.*/ ) {
	    die "unrecongnized option: $_";
	} else {
	    if ($input) {
		die "Don't specify more than 1 input file: @_";
	    }
	    $input=$_;
	}
    }

    unless ($input) {
	die "No input file given";
    }

    convert $input;
    0;
}

main @ARGV;

# txt2cstr ends here