From 6545361893dec0aa124ca153d20d1cce64e0e573 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian@liberator.relativity.greenend.org.uk>
Date: Tue, 28 Jul 2009 18:07:03 +0100
Subject: [PATCH] Detect a few more inconsistencies

---
 pctb/Commods.pm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pctb/Commods.pm b/pctb/Commods.pm
index b348c17..183eb96 100644
--- a/pctb/Commods.pm
+++ b/pctb/Commods.pm
@@ -292,6 +292,14 @@ sub check_tsv_line ($$) {
 	$f =~ m/^(|0|[1-9][0-9]{0,5}|\>1000)$/ or &$bad_data("bad field $i");
 	($i % 2) or ($f !~ m/\>/) or &$bad_data("> in field $i price");
     }
+
+    foreach my $i (2,4) {
+	&$bad_data("price with no qty or vice versa (field $i)")
+	    if length($v[$i]) xor length($v[$i+1]);
+    }
+    length($v[2]) or length($v[4]) or
+	&$bad_data("commodity entry with no buy or sell offer");
+    
     return @v;
 }
 
-- 
2.30.2