X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=SL%2FForm.pm;h=539cd9cb24f6b488592e1460bfe4cc528f2e312a;hb=c7ad671d22e558e157797af7d787c8df499be1b4;hp=55ee46d4cb453170eb1da4a18fcbbc22007dc410;hpb=4fa7102b36468079313df9e579f7537d49aab859;p=kivitendo-erp.git

diff --git a/SL/Form.pm b/SL/Form.pm
index 55ee46d4c..539cd9cb2 100644
--- a/SL/Form.pm
+++ b/SL/Form.pm
@@ -866,41 +866,30 @@ sub format_amount {
   $main::lxdebug->enter_sub(2);
 
   my ($self, $myconfig, $amount, $places, $dash) = @_;
-  $dash ||= '';
+  $amount ||= 0;
+  $dash   ||= '';
+  my $neg = $amount < 0;
+  my $force_places = defined $places && $places >= 0;
 
-  if ($amount eq "") {
-    $amount = 0;
-  }
-
-  $amount *= 1;
-
-  # Hey watch out! The amount can be an exponential term like 1.13686837721616e-13
+  $amount = $self->round_amount($amount, abs $places) if $force_places;
+  $amount = sprintf "%.*f", ($force_places ? $places : 10), abs $amount; # 6 is default for %fa
 
-  my $neg = ($amount =~ s/^-//);
-  my $exp = ($amount =~ m/[e]/) ? 1 : 0;
+  # before the sprintf amount was a number, afterwards it's a string. because of the dynamic nature of perl
+  # this is easy to confuse, so keep in mind: before this comment no s///, m//, concat or other strong ops on
+  # $amount. after this comment no +,-,*,/,abs. it will only introduce subtle bugs.
 
-  if (defined($places) && ($places ne '')) {
-    if (not $exp) {
-      if ($places < 0) {
-        $amount *= 1;
-        $places *= -1;
-
-        if ($amount =~ /\.(\d+)/) {
-          my $actual_places = length $1;
-          $places = $actual_places if $actual_places > $places;
-        }
-      }
-    }
-    $amount = $self->round_amount($amount, $places);
-  }
+  $amount =~ s/0*$// unless defined $places && $places == 0;             # cull trailing 0s
 
   my @d = map { s/\d//g; reverse split // } my $tmp = $myconfig->{numberformat}; # get delim chars
-  my @p = split(/\./, $amount); # split amount at decimal point
-
-  $p[0] =~ s/\B(?=(...)*$)/$d[1]/g if $d[1]; # add 1,000 delimiters
+  my @p = split(/\./, $amount);                                          # split amount at decimal point
 
+  $p[0] =~ s/\B(?=(...)*$)/$d[1]/g if $d[1];                             # add 1,000 delimiters
   $amount = $p[0];
-  $amount .= $d[0].($p[1]||'').(0 x ($places - length ($p[1]||''))) if ($places || $p[1] ne '');
+  if ($places || $p[1]) {
+    $amount .= $d[0]
+            .  ( $p[1] || '' )
+            .  (0 x (abs($places || 0) - length ($p[1]||'')));           # pad the fraction
+  }
 
   $amount = do {
     ($dash =~ /-/)    ? ($neg ? "($amount)"                            : "$amount" )                              :
@@ -908,7 +897,6 @@ sub format_amount {
                         ($neg ? "-$amount"                             : "$amount" )                              ;
   };
 
-
   $main::lxdebug->leave_sub(2);
   return $amount;
 }