#!/usr/bin/perl -w
+#
+# usage:
+# normalise [NORM-OPTIONS...] [--] INPUT-FILES...
+#
+# NORM-OPTIONS are
+# +OPTNAME[=OPTVAL] Election option
+# CAND=[DESCRIPTION]
+# +CAND+OPTNAME[=OPTVAL] Candidate option
+# -- End of options to normalise
+# -... Reserved for future options to normalise
use strict;
-our @options, %candiates, @ballots;
+our @options;
+our %candidates; # $candidates{CAND}{Desc}, {Opts}[]
+our @ballots;
my $candvoter_re = '\w+';
+my $opt_re = '\w+(?:=\S*)?';
-sub normalise_opts_list ($) {
+sub badinput ($) {
+ die "bad input: $_[0]";
+}
+
+sub normalise_opts_list ($$) {
+ # $ctx is one of Election Candidate Ballot
+ my ($os,$ctx) = @_;
+ $os //= '';
my @o;
foreach my $o (split /\s+/, $os) {
if ($o =~ m/^\w+$/) {
push @o, $&;
} elsif ($o =~ m/^\w+\=\S+$/) {
- push @o, $&;S
- } elseif ($o !~ m/\S/) {
+ push @o, $&;
+ } elsif ($o !~ m/\S/) {
} else {
badinput "bad option \`$o'";
}
return @o;
}
-sub normalise_opts ($) {
- my ($os) = @_;
- my @o = normalise_opts_list $os;
+sub normalise_opts ($$) {
+ my ($os,$ctx) = @_;
+ my @o = normalise_opts_list $os, $ctx;
return " | @o";
}
+sub setcanddesc ($$) {
+ my ($cand,$desc) = @_;
+
+ if (length $desc) {
+ badinput "multiple descriptions for $cand" if
+ defined $candidates{$cand}{Desc};
+ $candidates{$cand}{Desc} = $desc;
+ }
+}
+
+while (@ARGV) {
+ $_ = shift @ARGV;
+ if (m/^--$/) {
+ last;
+ } elsif (m/^(\w+)=([^|]+)$/) {
+ setcanddesc $1, $2;
+ } elsif (m/^\+($opt_re)$/) {
+ push @options, $1;
+ } elsif (m/^\+(\w+)\+($opt_re)$/) {
+ push @{ $candidates{$1}{Opts} }, $2;
+ } elsif (m/^-/) {
+ die "unknown normalise option \`$_'\n";
+ } else {
+ # oh!
+ unshift @ARGV, $_;
+ last;
+ }
+}
+
while (<>) {
next unless m/\S/;
next if m/^\#/;
s/^\s+//;
s/\s+$//;
if (m/^\|/) {
- push @options, normalise_opts_list $';
- } elsif (m/^($candvoter_re?)\s*=\s*([^|]+?)\s*|(.*)?$/) {
+ push @options, normalise_opts_list $', 'Election';
+ } elsif (m/^($candvoter_re?)\s*=\s*([^|]+?)\s*\|(.*)?$/o) {
+ use Data::Dumper;
+print STDERR Dumper($1,$2,$3);
my ($cand,$desc,$opts) = ($1,$2,$3);
- push @{ $candidates{$cand}{Opts} }, normalise_opts $opts;
- if (length $desc) {
- badinput "multiple descriptions for $cand" if
- defined $candidates{$cand}{Desc};
- $candidates{$cand}{Desc} = $desc;
- }
- $desc=$cand unless length $desc;
- push @candidates, "$cand = $desc".
- } elsif (m/^($candvoter_re?)?\s*\:([^|]+)(|(.*)?$/) {
+ push @{ $candidates{$cand}{Opts} }, normalise_opts $opts, 'Candidate';
+ setcanddesc $cand, $desc;
+ } elsif (m/^($candvoter_re?)?\s*\:([^|]*)(?:\|(.*))?$/) {
my ($voter,$opts) = ($1,$3);
my @p;
foreach my $p (split /\s+/, $2) {
if ($p =~ m/^\w+(?:\=\w+)*$/) {
push @p, $&;
- $candidates{$_} //= { } foreach my $p =~ m/\w+/g;
+ $candidates{$_} //= { } foreach $p =~ m/\w+/g;
+ } elsif ($p eq '') {
+ # empty entry can only happen if voter casts no prefs at all
} else {
badinput "bad vote preference \`$p'";
}
}
- push @ballots, "$voter : @p".normalise_opts $opts;
+ push @ballots, "$voter : @p".normalise_opts $opts, 'Ballot';
} elsif (m/^\.$/) {
} else {
badinput "unknown line format \`$_'";
sub vsortkey { $_[0] =~ m/:/; return "$' : $`"; }
print $_,"\n" or die $! foreach
- (sort { vsortkey($a) cmp vsortkey($b) } @ballots;
+ sort { vsortkey($a) cmp vsortkey($b) } @ballots;
print ".\n" or die $!;