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added perl function support

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This commit is contained in:
Thomas von Dein
2020-04-13 20:22:46 +02:00
parent 763a9fd9f4
commit 72eecdf6e8
2 changed files with 44 additions and 26 deletions
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54
rpnc
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@@ -157,12 +157,6 @@ my %func = (
}
},
'pr' => sub {
# parallel resistance, maybe add ~/.rpncrc support
# where to add such custom functions...
return "1 / (" . join(' + ', map { "1 / $_"} @_) . ")";
},
'm' => sub {
# median
if (scalar @_ >= 2) {
@@ -571,32 +565,39 @@ sub defun {
$custom{$name} = "@tokens";
$func{$name} = sub {
my $max = scalar @_;
my @args = reverse(@_);
if ($custom{$name} =~ /^\{.*\}$/) {
# perl code
$func{$name} = sub { return eval "@tokens" };
}
else {
# rpnc code
$func{$name} = sub {
my $max = scalar @_;
my @args = reverse(@_);
# replace N1..NN with actual args
my @body;
foreach my $item (@tokens) {
if ($item =~ /^([A-Z])(\d+)$/) {
my $letter = $1;
my $i = $2;
if ($i <= $max) {
push @body, $args[$i-1];
# replace N1..NN with actual stack items
my @body;
foreach my $item (@tokens) {
if ($item =~ /^([A-Z])(\d+)$/) {
my $letter = $1;
my $i = $2;
if ($i <= $max) {
push @body, $args[$i-1];
}
else {
print "undefined variable ${letter}${i}!\n";
push @body, 0;
}
}
else {
print "undefined variable ${letter}${i}!\n";
push @body, 0;
push @body, $item;
}
}
else {
push @body, $item;
}
}
# execute @body
looptokenize("@body");
};
# execute @body
looptokenize("@body");
};
}
print "function $name() defined.\n" unless $silent;
}
@@ -646,5 +647,6 @@ Various Commands: Functions:
h show history of past operations fs show list of defined functions
q finish (C-d works as well) Using register: enter R + index, e.g. R1
? print help Constants: PI V2 V3
~;
}