From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 2 Feb 2014 16:46:54 +0000 (+0000)
Subject: wip
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=appendix-a6.git;a=commitdiff_plain;h=6a76222ef4bb2d1223d99389577bf18dbd17aa6c;ds=sidebyside

wip
---

diff --git a/parse b/parse
new file mode 100755
index 0000000..a7c6bc0
--- /dev/null
+++ b/parse
@@ -0,0 +1,77 @@
+#!/usr/bin/perl -w
+use strict;
+use utf8;
+
+use Data::Printer;
+
+binmode STDIN, 'encoding(UTF-8)' or die;
+binmode STDOUT, 'encoding(UTF-8)' or die;
+binmode STDERR, 'encoding(UTF-8)' or die;
+
+our @choices;
+our %choices;
+our @invotes;
+
+sub addchoice {
+    my $cho = shift @_;
+    $choices{$cho} = { @_, Index => (scalar @choices) };
+    push @choices, $cho;
+}
+
+while (<>) {
+    s/\s+$//;
+    next if m/^\s*\#/;
+    next unless m/\S/;
+    if (m/^([A-Z]+)\s*\=\s*(\S.*)$/) {
+	my ($cho, $desc) = ($1,$2);
+	my $smaj;
+	if ($desc =~ m/\[(\d+):(\d+)\]/) {
+	    $smaj = [$1,$2];
+	} 
+	addchoice($cho, Desc => $desc, Smaj => $smaj);
+    } elsif (m/^V:\s+(\S+)\s+(\S.*)/) {
+	push @invotes, [ $1, $2 ];
+    } else {
+	die "invalid input";
+    }
+}
+
+if (!$choices{FD}) {
+    addchoice('FD', Desc => "Further Discussion");
+}
+
+our $chofd = $choices{FD};
+
+die "FD has smaj?!" if $chofd->{Smaj};
+
+our @vab; # $vab[$ia][$ib] = V(A,B)
+
+foreach my $iv (@invotes) {
+    my ($votestr,$voter) = @$iv;
+    eval {
+	length $votestr eq @choices or die "wrong vote vector length";
+	my @vs = split //, $votestr;
+	foreach my $ix (0..$#vs) {
+	    my $vchr = $vs[$ix];
+	    if ($vchr eq '-') {
+		$vs[$ix] = 1000;
+	    } elsif ($vchr =~ m/[0-9a-z]/) {
+		$vs[$ix] = ord($vchr);
+	    } else {
+		die "bad vote char";
+	    }
+	}
+	foreach my $ia (0..$#vs) {
+	    foreach my $ib (0..$#vs) {
+		my $va = $vs[$ia];
+		my $vb = $vs[$ib];
+		if ($va < $vb) { $vab[$ia][$ib]++; }
+		elsif ($vb < $va) { $vab[$ib][$ia]++; }
+	    }
+	}
+    }
+    die "voter $voter $@" if $@;
+}
+
+print p %choices;
+print p @vab;