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-rw-r--r--challenge-323/adam-russell/blog.txt1
-rw-r--r--challenge-323/adam-russell/perl/IncrementDecrement.pm220
-rw-r--r--challenge-323/adam-russell/perl/IncrementDecrement.yp89
-rw-r--r--challenge-323/adam-russell/perl/ch-1.pl43
-rw-r--r--challenge-323/adam-russell/perl/ch-2.pl37
5 files changed, 390 insertions, 0 deletions
diff --git a/challenge-323/adam-russell/blog.txt b/challenge-323/adam-russell/blog.txt
new file mode 100644
index 0000000000..f3b5f56af8
--- /dev/null
+++ b/challenge-323/adam-russell/blog.txt
@@ -0,0 +1 @@
+http://www.rabbitfarm.com/cgi-bin/blosxom/perl/2025/06/05
diff --git a/challenge-323/adam-russell/perl/IncrementDecrement.pm b/challenge-323/adam-russell/perl/IncrementDecrement.pm
new file mode 100644
index 0000000000..41b6b03dd5
--- /dev/null
+++ b/challenge-323/adam-russell/perl/IncrementDecrement.pm
@@ -0,0 +1,220 @@
+####################################################################
+#
+# This file was generated using Parse::Yapp version 1.21.
+#
+# Don't edit this file, use source file instead.
+#
+# ANY CHANGE MADE HERE WILL BE LOST !
+#
+####################################################################
+package IncrementDecrement;
+use vars qw ( @ISA );
+use strict;
+
+@ISA= qw ( Parse::Yapp::Driver );
+use Parse::Yapp::Driver;
+
+#line 10 "perl/IncrementDecrement.yp"
+
+ my $variable_state = {};
+
+
+sub new {
+ my($class)=shift;
+ ref($class)
+ and $class=ref($class);
+
+ my($self)=$class->SUPER::new( yyversion => '1.21',
+ yystates =>
+[
+ {#State 0
+ ACTIONS => {
+ 'DECREMENT' => 2,
+ 'INCREMENT' => 7,
+ 'LETTER' => 1
+ },
+ GOTOS => {
+ 'program' => 9,
+ 'decrement_variable' => 8,
+ 'increment_decrement' => 4,
+ 'increment_variable' => 3,
+ 'variable_declaration' => 6,
+ 'statement' => 5
+ }
+ },
+ {#State 1
+ ACTIONS => {
+ 'INCREMENT' => 11,
+ 'DECREMENT' => 10
+ },
+ DEFAULT => -5
+ },
+ {#State 2
+ ACTIONS => {
+ 'LETTER' => 12
+ }
+ },
+ {#State 3
+ DEFAULT => -6
+ },
+ {#State 4
+ DEFAULT => -4
+ },
+ {#State 5
+ DEFAULT => -1
+ },
+ {#State 6
+ DEFAULT => -3
+ },
+ {#State 7
+ ACTIONS => {
+ 'LETTER' => 13
+ }
+ },
+ {#State 8
+ DEFAULT => -7
+ },
+ {#State 9
+ ACTIONS => {
+ '' => 15,
+ 'LETTER' => 1,
+ 'INCREMENT' => 7,
+ 'DECREMENT' => 2
+ },
+ GOTOS => {
+ 'statement' => 14,
+ 'variable_declaration' => 6,
+ 'increment_variable' => 3,
+ 'decrement_variable' => 8,
+ 'increment_decrement' => 4
+ }
+ },
+ {#State 10
+ DEFAULT => -11
+ },
+ {#State 11
+ DEFAULT => -9
+ },
+ {#State 12
+ DEFAULT => -10
+ },
+ {#State 13
+ DEFAULT => -8
+ },
+ {#State 14
+ DEFAULT => -2
+ },
+ {#State 15
+ DEFAULT => 0
+ }
+],
+ yyrules =>
+[
+ [#Rule 0
+ '$start', 2, undef
+ ],
+ [#Rule 1
+ 'program', 1,
+sub
+#line 19 "perl/IncrementDecrement.yp"
+{$variable_state}
+ ],
+ [#Rule 2
+ 'program', 2, undef
+ ],
+ [#Rule 3
+ 'statement', 1, undef
+ ],
+ [#Rule 4
+ 'statement', 1, undef
+ ],
+ [#Rule 5
+ 'variable_declaration', 1,
+sub
+#line 27 "perl/IncrementDecrement.yp"
+{$variable_state->{$_[1]} = 0}
+ ],
+ [#Rule 6
+ 'increment_decrement', 1, undef
+ ],
+ [#Rule 7
+ 'increment_decrement', 1, undef
+ ],
+ [#Rule 8
+ 'increment_variable', 2,
+sub
+#line 34 "perl/IncrementDecrement.yp"
+{$variable_state->{$_[2]}++}
+ ],
+ [#Rule 9
+ 'increment_variable', 2,
+sub
+#line 35 "perl/IncrementDecrement.yp"
+{$variable_state->{$_[1]}++}
+ ],
+ [#Rule 10
+ 'decrement_variable', 2,
+sub
+#line 38 "perl/IncrementDecrement.yp"
+{$variable_state->{$_[2]}--}
+ ],
+ [#Rule 11
+ 'decrement_variable', 2,
+sub
+#line 39 "perl/IncrementDecrement.yp"
+{$variable_state->{$_[1]}--}
+ ]
+],
+ @_);
+ bless($self,$class);
+}
+
+#line 44 "perl/IncrementDecrement.yp"
+
+
+
+
+ sub lexer{
+ my($parser) = @_;
+ $parser->YYData->{INPUT} or return(q//, undef);
+ $parser->YYData->{INPUT} =~ s/^[ \t]//g;
+ ##
+ # send tokens to parser
+ ##
+ for($parser->YYData->{INPUT}){
+ s/^(\s+)// and return (q/SPACE/, $1);
+ s/^([a-z]{1})// and return (q/LETTER/, $1);
+ s/^(\+\+)// and return (q/INCREMENT/, $1);
+ s/^(--)// and return (q/DECREMENT/, $1);
+ }
+ }
+
+
+ sub parse{
+ my($self, $input) = @_;
+ $input =~ tr/\t/ /s;
+ $input =~ tr/\n/ /s;
+ $self->YYData->{INPUT} = $input;
+ my $result = $self->YYParse(yylex => \&lexer, yyerror => \&error);
+ return $result;
+ }
+
+
+ sub error{
+ exists $_[0]->YYData->{ERRMSG}
+ and do{
+ print $_[0]->YYData->{ERRMSG};
+ return;
+ };
+ print "syntax error\n";
+ }
+
+
+ sub clear{
+ my($self) = @_;
+ $variable_state = {};
+ }
+
+
+
+1;
diff --git a/challenge-323/adam-russell/perl/IncrementDecrement.yp b/challenge-323/adam-russell/perl/IncrementDecrement.yp
new file mode 100644
index 0000000000..9883cc9494
--- /dev/null
+++ b/challenge-323/adam-russell/perl/IncrementDecrement.yp
@@ -0,0 +1,89 @@
+
+
+
+ %token INCREMENT
+ %token DECREMENT
+ %token LETTER
+ %expect 2
+
+
+ %{
+ my $variable_state = {};
+ %}
+
+
+
+ %%
+
+
+ program: statement {$variable_state}
+ | program statement
+ ;
+
+ statement: variable_declaration #{$variable_state}
+ | increment_decrement
+ ;
+
+ variable_declaration: LETTER {$variable_state->{$_[1]} = 0}
+ ;
+
+ increment_decrement: increment_variable
+ | decrement_variable
+ ;
+
+ increment_variable: INCREMENT LETTER {$variable_state->{$_[2]}++}
+ | LETTER INCREMENT {$variable_state->{$_[1]}++}
+ ;
+
+ decrement_variable: DECREMENT LETTER {$variable_state->{$_[2]}--}
+ | LETTER DECREMENT {$variable_state->{$_[1]}--}
+ ;
+
+
+
+ %%
+
+
+
+ sub lexer{
+ my($parser) = @_;
+ $parser->YYData->{INPUT} or return(q//, undef);
+ $parser->YYData->{INPUT} =~ s/^[ \t]//g;
+ ##
+ # send tokens to parser
+ ##
+ for($parser->YYData->{INPUT}){
+ s/^(\s+)// and return (q/SPACE/, $1);
+ s/^([a-z]{1})// and return (q/LETTER/, $1);
+ s/^(\+\+)// and return (q/INCREMENT/, $1);
+ s/^(--)// and return (q/DECREMENT/, $1);
+ }
+ }
+
+
+ sub parse{
+ my($self, $input) = @_;
+ $input =~ tr/\t/ /s;
+ $input =~ tr/\n/ /s;
+ $self->YYData->{INPUT} = $input;
+ my $result = $self->YYParse(yylex => \&lexer, yyerror => \&error);
+ return $result;
+ }
+
+
+ sub error{
+ exists $_[0]->YYData->{ERRMSG}
+ and do{
+ print $_[0]->YYData->{ERRMSG};
+ return;
+ };
+ print "syntax error\n";
+ }
+
+
+ sub clear{
+ my($self) = @_;
+ $variable_state = {};
+ }
+
+
diff --git a/challenge-323/adam-russell/perl/ch-1.pl b/challenge-323/adam-russell/perl/ch-1.pl
new file mode 100644
index 0000000000..28698eecb8
--- /dev/null
+++ b/challenge-323/adam-russell/perl/ch-1.pl
@@ -0,0 +1,43 @@
+
+
+ use v5.40;
+ use IncrementDecrement;
+
+use constant TEST0 => q/--x x++ x++/;
+use constant TEST1 => q/x++ ++x x++/;
+use constant TEST2 => q/x++ ++x --x x--/;
+use constant COMPLEX_TEST => <<~END_TEST;
+ a b c
+ a++ b++ c++
+ ++a ++b ++c
+ --a --b --c
+ a-- b-- c--
+ a++ ++b c++
+ END_TEST
+
+
+
+ sub print_variables{
+ my($results) = @_;
+ for my $k (keys %{$results}){
+ print $k;
+ say qq/:\t$results->{$k}/;
+ }
+ }
+
+
+MAIN:{
+ my $parser = IncrementDecrement->new();
+ say TEST0;
+ say print_variables $parser->parse(TEST0);
+ say TEST1;
+ $parser->clear();
+ say print_variables $parser->parse(TEST1);
+ say TEST2;
+ $parser->clear();
+ say print_variables $parser->parse(TEST2);
+ say COMPLEX_TEST;
+ $parser->clear();
+ say print_variables $parser->parse(COMPLEX_TEST);
+}
+
diff --git a/challenge-323/adam-russell/perl/ch-2.pl b/challenge-323/adam-russell/perl/ch-2.pl
new file mode 100644
index 0000000000..fc05d1e33f
--- /dev/null
+++ b/challenge-323/adam-russell/perl/ch-2.pl
@@ -0,0 +1,37 @@
+
+ use v5.40;
+
+ sub calculate_tax{
+ my($income, $tax_brackets) = @_;
+
+ $tax_brackets = [sort {$a->[0] <=> $b->[0]} @{$tax_brackets}];
+ use Data::Dump q/pp/;
+
+ my $tax = 0;
+ my $taxed = 0;
+ my $taxable = 0;
+
+ {
+ my $tax_bracket = shift @{$tax_brackets};
+ if($tax_bracket->[0] <= $income){
+ $taxable = $tax_bracket->[0] - $taxable;
+ $tax += ($taxable * ($tax_bracket->[1]/100));
+ $taxed += $taxable;
+ }
+ else{
+ $tax += (($income - $taxed) * ($tax_bracket->[1]/100));
+ $taxed = $income;
+ }
+ redo unless $taxed >= $income || @{$tax_brackets} == 0;
+ }
+
+ return $tax;
+ }
+
+
+MAIN:{
+ say calculate_tax 10, [[3, 50], [7, 10], [12,25]];
+ say calculate_tax 2, [[1, 0], [4, 25], [5,50]];
+ say calculate_tax 0, [[2, 50]];
+}
+
generated by cgit (git 2.34.1) at 2026-04-15 03:27:44 +0000