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Add string comparison functions

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madmaurice 2021-04-02 03:08:19 +02:00
parent 368e1be5c6
commit 855f4fef5f
1 changed files with 12 additions and 0 deletions
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lib/Minilisp.pm
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@ -109,6 +109,18 @@ my %stdctx = (
'ne' => sub { my ($a, $b) = @_; return ($a ne $b); },
'==' => sub { my ($a, $b) = @_; return ($a == $b); },
'!=' => sub { my ($a, $b) = @_; return ($a != $b); },
'string=' => sub { my ($a, $b) = @_; return ($a eq $b); },
'string/=' => sub { my ($a, $b) = @_; return ($a ne $b); },
'string<' => sub { my ($a, $b) = @_; return ($a lt $b); },
'string>' => sub { my ($a, $b) = @_; return ($a gt $b); },
'string<=' => sub { my ($a, $b) = @_; return !($a gt $b); },
'string>=' => sub { my ($a, $b) = @_; return !($a lt $b); },
'string-equal' => sub { my ($a, $b) = @_; return ( lc($a) eq lc($b)); },
'string-not-equal' => sub { my ($a, $b) = @_; return (lc($a) ne lc($b)); },
'string-lessp' => sub { my ($a, $b) = @_; return (lc($a) lt lc($b)); },
'string-greaterp' => sub { my ($a, $b) = @_; return (lc($a) gt lc($b)); },
'string-not-greaterp' => sub { my ($a, $b) = @_; return !(lc($a) gt lc($b)); },
'string-not-lessp' => sub { my ($a, $b) = @_; return !(lc($a) lt lc($b)); },
'>' => sub { my ($a,$b) = @_; return ($a > $b); },
'<' => sub { my ($a,$b) = @_; return ($a < $b); },
'>=' => sub { my ($a,$b) = @_; return ($a >= $b); },