Merge branch 'charclass'

* charclass: (24 commits)
  www: require ASCII word characters for CSS filenames
  www: require ASCII range for mbox downloads
  githttpbackend: require ASCII in path
  require ASCII digits for local FS items
  www: require ASCII digit for git epoch
  solver|viewdiff: restrict digit matches to ASCII
  inbox: require ASCII digits for feedmax var
  filter/rubylang: require ASCII digit for mailcount
  msgtime: require ASCII digits for parsing dates
  searchview: do not allow non-ASCII offsets and limits
  githttpbackend: require Range:, Status: to be ASCII digits
  view: require YYYYmmDD(HHMMSS) timestamps to be ASCII
  newswww: only accept ASCII digits as article numbers
  config: do not accept non-ASCII digits in cgitrc params
  www: require ASCII filenames in git blob downloads
  www: only emit ASCII chars in attachment filenames
  wwwattach: only pass the charset through if ASCII
  wwwlisting: require ASCII digit for port number
  http: require SERVER_PORT to be ASCII digit
  feed: only accept ASCII digits for ref~$N
  ...

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index 09afdaf1..1b52bf86 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -528,7 +528,7 @@ sub attach_link ($$$$;$) {
         $desc = $fn unless defined $desc;
         $desc = '' unless defined $desc;
         my $sfn;
-        if (defined $fn && $fn =~ /\A[[:alnum:]][\w\.-]+[[:alnum:]]\z/) {
+        if (defined $fn && $fn =~ /\A$PublicInbox::Hval::FN\z/o) {
                 $sfn = $fn;
         } elsif ($ct eq 'text/plain') {
                 $sfn = 'a.txt';
@@ -1160,8 +1160,8 @@ sub paginate_recent ($$) {
         # Xapian uses '..' but '-' is perhaps friendier to URL linkifiers
         # if only $after exists "YYYYMMDD.." because "." could be skipped
         # if interpreted as an end-of-sentence
-        $t =~ s/\A(\d{8,14})-// and $after = str2ts($1);
-        $t =~ /\A(\d{8,14})\z/ and $before = str2ts($1);
+        $t =~ s/\A([0-9]{8,14})-// and $after = str2ts($1);
+        $t =~ /\A([0-9]{8,14})\z/ and $before = str2ts($1);
 
         my $ibx = $ctx->{-inbox};
         my $msgs = $ibx->recent($opts, $after, $before);