#!/bin/sh
exec perl -e '
# brace_tokens

use strict;
use warnings;

require "brace_parser.pl";
my $text = join "", <STDIN>;
my $tokens = tokenize($text);

# This tokenization process is exactly reversible by running brace_contlines.
# It does not restore original line breakings, that is the only difference.
#
# If you run:
#   < a brace_contlines > b
#   < a brace_tokens | brace_contlines > c
# then
#   cmp b c
# is true.

# on each line you have a significant token (visible, tabs or newline), 0 or more spaces and a \
# if the file starts with spaces, the first token will be spaces and \

# every token except spaces has a line of its own


my $cont = 0;
for (@$tokens) {
	if (!/^ +$/ && $cont) { print "\\\n" }
	print;
	$cont = $_ ne "\n";
}


# this works well - but I could also put spaces on separate lines.
' "$@"