solutions for challenge 021

6 files changed, 424 insertions, 0 deletions

diff --git a/challenge-021/adam-russell/blog.txt b/challenge-021/adam-russell/blog.txt
new file mode 100644
index 0000000000..b685371fce
--- /dev/null
+++ b/challenge-021/adam-russell/blog.txt
@@ -0,0 +1,2 @@
+https://adamcrussell.livejournal.com/6924.html
+https://adamcrussell.livejournal.com/7347.html
diff --git a/challenge-021/adam-russell/perl5/UrlGrammar.yp b/challenge-021/adam-russell/perl5/UrlGrammar.yp
new file mode 100644
index 0000000000..18c259c897
--- /dev/null
+++ b/challenge-021/adam-russell/perl5/UrlGrammar.yp
@@ -0,0 +1,57 @@
+%token '://' SCHEME USERPASSWORD HOST PORT PATH QUERY FRAGMENT 
+%%
+url: scheme colondoubleslash userpassword host port path query fragment 
+   | scheme colondoubleslash host path query fragment 
+   | scheme colondoubleslash host path fragment 
+   | scheme colondoubleslash host path  
+   | scheme colondoubleslash host  
+;
+colondoubleslash: '://' { print $_[1] } 
+;
+scheme: SCHEME { print lc($_[1]) } 
+;
+userpassword: USERPASSWORD { print $_[1] }  
+;
+host: HOST { print lc($_[1]) }   
+;
+port: PORT { $_[1] =~ s/://; print "" }
+;
+path: PATH { print $_[1] }
+;
+query: QUERY { print $_[1] } 
+;
+fragment: FRAGMENT { print "" }  
+;
+%%
+sub lexer{
+    my($parser) = @_;
+    $parser->YYData->{INPUT} or return('', undef);
+    $parser->YYData->{INPUT} =~ s/^[ \t]//;
+    ##
+    # send tokens to parser
+    ##
+    for($parser->YYData->{INPUT}){
+        s/^(http|https|ftp|jdbc)//i and return ("SCHEME", $1); 
+        s/^(:\/\/)// and return ("://", $1);
+        s/^(:[0-9]*)// and return ("PORT", $1);
+        s/^([a-zA-Z]*:[a-zA-Z]*)// and return ("USERPASSWORD", $1); 
+        s/^(\/[\/a-zA-Z]*)// and return ("PATH", $1);
+        s/^(\?{1}[a-zA-z=a-zA-Z]*)// and return ("QUERY", $1);
+        s/^(#{1}[a-zA-Z]*[0-9]*)// and return ("FRAGMENT", $1); 
+        s/^(@?\/{0}[a-zA-z]*)// and return ("HOST", $1);
+    }  
+}
+sub error{
+    exists $_[0]->YYData->{ERRMSG}
+    and do{
+        print $_[0]->YYData->{ERRMSG};
+            return;
+    };
+    print "syntax error\n"; 
+}
+sub parse{
+    my($self, $input) = @_;
+    $self->YYData->{INPUT} = $input;
+    my $result = $self->YYParse(yylex => \&lexer, yyerror => \&error);
+    return $result;  
+}
diff --git a/challenge-021/adam-russell/perl5/UrlParser.pm b/challenge-021/adam-russell/perl5/UrlParser.pm
new file mode 100644
index 0000000000..17c4651744
--- /dev/null
+++ b/challenge-021/adam-russell/perl5/UrlParser.pm
@@ -0,0 +1,272 @@
+####################################################################
+#
+#    This file was generated using Parse::Yapp version 1.21.
+#
+#        Don't edit this file, use source file instead.
+#
+#             ANY CHANGE MADE HERE WILL BE LOST !
+#
+####################################################################
+package UrlParser;
+use vars qw ( @ISA );
+use strict;
+
+@ISA= qw ( Parse::Yapp::Driver );
+use Parse::Yapp::Driver;
+
+
+
+sub new {
+        my($class)=shift;
+        ref($class)
+    and $class=ref($class);
+
+    my($self)=$class->SUPER::new( yyversion => '1.21',
+                                  yystates =>
+[
+	{#State 0
+		ACTIONS => {
+			'SCHEME' => 3
+		},
+		GOTOS => {
+			'scheme' => 2,
+			'url' => 1
+		}
+	},
+	{#State 1
+		ACTIONS => {
+			'' => 4
+		}
+	},
+	{#State 2
+		ACTIONS => {
+			"://" => 5
+		},
+		GOTOS => {
+			'colondoubleslash' => 6
+		}
+	},
+	{#State 3
+		DEFAULT => -7
+	},
+	{#State 4
+		DEFAULT => 0
+	},
+	{#State 5
+		DEFAULT => -6
+	},
+	{#State 6
+		ACTIONS => {
+			'HOST' => 7,
+			'USERPASSWORD' => 8
+		},
+		GOTOS => {
+			'host' => 9,
+			'userpassword' => 10
+		}
+	},
+	{#State 7
+		DEFAULT => -9
+	},
+	{#State 8
+		DEFAULT => -8
+	},
+	{#State 9
+		ACTIONS => {
+			'PATH' => 12
+		},
+		DEFAULT => -5,
+		GOTOS => {
+			'path' => 11
+		}
+	},
+	{#State 10
+		ACTIONS => {
+			'HOST' => 7
+		},
+		GOTOS => {
+			'host' => 13
+		}
+	},
+	{#State 11
+		ACTIONS => {
+			'QUERY' => 14,
+			'FRAGMENT' => 17
+		},
+		DEFAULT => -4,
+		GOTOS => {
+			'fragment' => 16,
+			'query' => 15
+		}
+	},
+	{#State 12
+		DEFAULT => -11
+	},
+	{#State 13
+		ACTIONS => {
+			'PORT' => 19
+		},
+		GOTOS => {
+			'port' => 18
+		}
+	},
+	{#State 14
+		DEFAULT => -12
+	},
+	{#State 15
+		ACTIONS => {
+			'FRAGMENT' => 17
+		},
+		GOTOS => {
+			'fragment' => 20
+		}
+	},
+	{#State 16
+		DEFAULT => -3
+	},
+	{#State 17
+		DEFAULT => -13
+	},
+	{#State 18
+		ACTIONS => {
+			'PATH' => 12
+		},
+		GOTOS => {
+			'path' => 21
+		}
+	},
+	{#State 19
+		DEFAULT => -10
+	},
+	{#State 20
+		DEFAULT => -2
+	},
+	{#State 21
+		ACTIONS => {
+			'QUERY' => 14
+		},
+		GOTOS => {
+			'query' => 22
+		}
+	},
+	{#State 22
+		ACTIONS => {
+			'FRAGMENT' => 17
+		},
+		GOTOS => {
+			'fragment' => 23
+		}
+	},
+	{#State 23
+		DEFAULT => -1
+	}
+],
+                                  yyrules  =>
+[
+	[#Rule 0
+		 '$start', 2, undef
+	],
+	[#Rule 1
+		 'url', 8, undef
+	],
+	[#Rule 2
+		 'url', 6, undef
+	],
+	[#Rule 3
+		 'url', 5, undef
+	],
+	[#Rule 4
+		 'url', 4, undef
+	],
+	[#Rule 5
+		 'url', 3, undef
+	],
+	[#Rule 6
+		 'colondoubleslash', 1,
+sub
+#line 9 "perl5/UrlGrammar.yp"
+{ print $_[1] }
+	],
+	[#Rule 7
+		 'scheme', 1,
+sub
+#line 11 "perl5/UrlGrammar.yp"
+{ print lc($_[1]) }
+	],
+	[#Rule 8
+		 'userpassword', 1,
+sub
+#line 13 "perl5/UrlGrammar.yp"
+{ print $_[1] }
+	],
+	[#Rule 9
+		 'host', 1,
+sub
+#line 15 "perl5/UrlGrammar.yp"
+{ print lc($_[1]) }
+	],
+	[#Rule 10
+		 'port', 1,
+sub
+#line 17 "perl5/UrlGrammar.yp"
+{ $_[1] =~ s/://; print "" }
+	],
+	[#Rule 11
+		 'path', 1,
+sub
+#line 19 "perl5/UrlGrammar.yp"
+{ print $_[1] }
+	],
+	[#Rule 12
+		 'query', 1,
+sub
+#line 21 "perl5/UrlGrammar.yp"
+{ print $_[1] }
+	],
+	[#Rule 13
+		 'fragment', 1,
+sub
+#line 23 "perl5/UrlGrammar.yp"
+{ print "" }
+	]
+],
+                                  @_);
+    bless($self,$class);
+}
+
+#line 25 "perl5/UrlGrammar.yp"
+
+sub lexer{
+    my($parser) = @_;
+    $parser->YYData->{INPUT} or return('', undef);
+    $parser->YYData->{INPUT} =~ s/^[ \t]//;
+    ##
+    # send tokens to parser
+    ##
+    for($parser->YYData->{INPUT}){
+        s/^(http|https|ftp|jdbc)//i and return ("SCHEME", $1); 
+        s/^(:\/\/)// and return ("://", $1);
+        s/^(:[0-9]*)// and return ("PORT", $1);
+        s/^([a-zA-Z]*:[a-zA-Z]*)// and return ("USERPASSWORD", $1); 
+        s/^(\/[\/a-zA-Z]*)// and return ("PATH", $1);
+        s/^(\?{1}[a-zA-z=a-zA-Z]*)// and return ("QUERY", $1);
+        s/^(#{1}[a-zA-Z]*[0-9]*)// and return ("FRAGMENT", $1); 
+        s/^(@?\/{0}[a-zA-z]*)// and return ("HOST", $1);
+    }  
+}
+sub error{
+    exists $_[0]->YYData->{ERRMSG}
+    and do{
+        print $_[0]->YYData->{ERRMSG};
+            return;
+    };
+    print "syntax error\n"; 
+}
+sub parse{
+    my($self, $input) = @_;
+    $self->YYData->{INPUT} = $input;
+    my $result = $self->YYParse(yylex => \&lexer, yyerror => \&error);
+    return $result;  
+}
+
+1;
diff --git a/challenge-021/adam-russell/perl5/ch-1.pl b/challenge-021/adam-russell/perl5/ch-1.pl
new file mode 100644
index 0000000000..96d0968873
--- /dev/null
+++ b/challenge-021/adam-russell/perl5/ch-1.pl
@@ -0,0 +1,35 @@
+use strict;
+use warnings;
+##
+# Write a script to calculate the value of e. 
+## 
+sub e_calculation{ 
+    my($n) = @_; 
+    my @d; 
+    my $m = 4;
+    my @coefficients; 
+    my $test = ($n + 1) * (2.30258509);
+    do{
+        $m++; 
+    }while($m * (log($m) - 1.0) + 0.5 * log(6.2831852 * $m) <= $test);    
+    @coefficients = (1) x $m; 
+    $d[0] = 2;
+    for my $i (1 .. $n){
+        my $carry = 0;
+        for(my $j = $m - 1; $j >= 2; $j--){
+            my $temp = $coefficients[$j] * 10 + $carry;
+            $carry = int($temp / $j);
+            $coefficients[$j] = $temp - $carry * $j; 
+        }  
+        $d[$i] = $carry;  
+    }     
+    return @d; 
+} 
+
+MAIN:{
+    my $number_digits = $ARGV[0];  
+    my @digits = e_calculation($number_digits);
+    print shift @digits;
+    print ".";
+    print join("", @digits) . "\n";  
+} 
diff --git a/challenge-021/adam-russell/perl5/ch-2.pl b/challenge-021/adam-russell/perl5/ch-2.pl
new file mode 100644
index 0000000000..55e9f126f9
--- /dev/null
+++ b/challenge-021/adam-russell/perl5/ch-2.pl
@@ -0,0 +1,14 @@
+use strict;
+use warnings;
+##
+# Write a script for URL normalization based on rfc3986.
+##
+use UrlParser;
+use constant URL => q|JDBC://user:password@localhost:3306/pwc?profile=true#h1|; 
+MAIN:{
+    my $parser = new UrlParser();
+    $parser->parse(URL);
+}  
+
+__DATA__ 
+use constant URL => "HTTP://www.example.com:80/a%C2%B1b/%7Eusername"; 
diff --git a/challenge-021/adam-russell/perl6/ch-1.p6 b/challenge-021/adam-russell/perl6/ch-1.p6
new file mode 100644
index 0000000000..8d52d296f9
--- /dev/null
+++ b/challenge-021/adam-russell/perl6/ch-1.p6
@@ -0,0 +1,44 @@
+##
+# Write a script to calculate the value of e.
+##
+sub e {
+    my $quantity = 50; 
+    my $digit_channel = Channel.new(); 
+    $digit_channel.send(2);
+    $digit_channel.send(".");
+    e_calculation($digit_channel, $quantity);
+    gather loop {
+        take $digit_channel.poll() // do { 
+            $quantity += 50; 
+            e_calculation($digit_channel, $quantity);
+            $digit_channel.receive();
+        } 
+    }  
+} 
+
+sub e_calculation($channel, $quantity) {
+    my @d;
+    my $n = $quantity;  
+    my $m = 4;
+    my @coefficients;
+    my $test = ($n + 1) * (2.30258509);
+    repeat {
+        $m++;
+    }while ($m * (log($m) - 1.0) + 0.5 * log(6.2831852 * $m) <= $test);
+    @coefficients = (1) xx $m;
+    for (1 .. $n) -> $i {
+        my $carry = 0;
+        loop (my $j = $m - 1; $j >= 2; $j--) {
+            my $temp = @coefficients[$j] * 10 + $carry;
+            $carry = floor($temp / $j);
+            @coefficients[$j] = $temp - $carry * $j;
+        }
+        if ($i > $quantity - 50) { 
+            $channel.send($carry); 
+        }
+    }
+}
+
+for e() -> $e {
+    print $e; 
+}