From 02e6a32fd44d994d88f8bcb79d47e217455c580d Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Tue, 3 Apr 2012 00:52:34 +0200
Subject: [PATCH] font: describe search query

---
 font.plp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/font.plp b/font.plp
index ddc35b4..4cc99c9 100644
--- a/font.plp
+++ b/font.plp
@@ -52,12 +52,14 @@ for my $os (@ossel) {
 # parse input
 
 my @chars;
+my @querydesc;
 
 my $query = $ENV{PATH_INFO} || $get{q} || 'ipa';
 for ($query) {
 	s{^/}{};
 	when (qr{^[a-z]+(?:/|\z)}) {
 		for (split / /) {
+			push @querydesc, "preset group $_";
 			my ($tablegroup, $tablename) = split m{/}, $_, 2;
 			my @tables = $tablename ? $tables->{$tablegroup}->{$tablename}
 			           : sort values %{ $tables->{$tablegroup} };
@@ -73,12 +75,14 @@ for ($query) {
 		}
 	}
 	when (qr{[\d,;\s+-]+}) {
+		push @querydesc, "character codepoints $_";
 		for (map { split /[^\d-]/ } $_) {
 			my ($charnum, $range) = split /-/, $_;
 			push @chars, chr $_ for $charnum .. ($range // $charnum);
 		}
 	}
 	when (qr{[A-Z]}) {
+		push @querydesc, "unicode match $_";
 		eval {
 			my $match = qr/\A\p{$_}\z/;
 			push @chars, grep { m/$match/ } map { chr $_ }
@@ -90,12 +94,15 @@ for ($query) {
 	}
 }
 
-@chars <= 1500
-	or die sprintf 'too many matches (%d)'."\n", scalar @chars;
+@chars <= 1500 or die sprintf(
+	'too many matches (%d) for %s'."\n",
+	scalar @chars, join(', ', @querydesc),
+);
 
 # output character list
 
 print '<table class=mapped>';
+say '<caption>'.EscapeHTML(join ', ', @querydesc).'</caption>';
 print '<col>' x 3;
 print "<colgroup span=$_>" for 2, map { scalar @{$oslist{$_}} } @ossel;
 
-- 
2.30.0