use Octans::Puzzle;
use Octans::WordSearch;
# If no arguments are passed then run USAGE & exit.
proto MAIN (|) is export {unless so @*ARGS {USAGE(); exit;}; {*}}
multi sub MAIN (Bool :$version) is hidden-from-USAGE {
say "Octans v" ~ $?DISTRIBUTION.meta<version>;
}
multi sub MAIN (
Str $path?, #= path to the crossword (file or url)
Str :$dict = (%?RESOURCES<mwords/354984si.ngl> //
"/usr/share/dict/words").Str, #= dictionary file
Int :$length = 7, #= minimum word length (default: 7)
Bool :s($sample), #= run the sample puzzle
Bool :v($verbose), #= increase verbosity
Bool :$version, #= print version
) {
# Print usage & exit if both sample & path are not passed.
unless ($sample or $path) {
USAGE();
exit;
}
# @dict holds the sorted dictionary. Only consider words >= 7
# chars by default.
my Str @dict = $dict.IO.lines.grep(*.chars >= $length);
# @puzzle holds the puzzle.
#
# @gray-squares holds the list of indexes of valid starting
# positions in the puzzle.
my (@puzzle, @gray-squares);
# Set the sample puzzle if requested.
if $sample {
@puzzle = [
[<n a t k>],
[<i m e c>],
[<a* r d e>],
[<t* e c h>],
];
}
# Get the puzzle from $path if it's passed. And set @gray-squares.
@puzzle = get-puzzle($_) with $path;
# set-gray-squares also removes asterisks from @puzzle.
@gray-squares = set-gray-squares(@puzzle); # ($y, $x)
if $verbose {
# Don't print path if using the dictionary included with the
# program.
say "Dictionary: ", $dict.Str
unless ($dict.Str
eq %?RESOURCES<mwords/354984si.ngl>.Str);
say "Gray squares: ", @gray-squares;
say "Puzzle";
" $_".say for @puzzle;
}
# After the solution is found, the path is printed with these
# fancy chars.
my %𝒻𝒶𝓃𝒸𝓎-𝒸𝒽𝒶𝓇𝓈 = <a a̶ b b̶ c c̶ d d̶ e e̶ f f̶ g g̶ h h̶ i i̶ j j̶ k k̶ l l̶
m m̶ n n̶ o o̶ p p̶ q q̶ r r̶ s s̶ t t̶ u u̶ v v̶ w w̶
x x̶ y y̶ z z̶>;
# start-pos block loops over each starting position.
start-pos: for @gray-squares -> $pos {
my DateTime $initial = DateTime.now;
# gather all the words that word-search finds starting from
# $pos.
for gather word-search(
@dict, @puzzle, $pos[0], $pos[1],
) -> (
# word-search returns the word along with @visited which
# holds the list of all grids that were visited when the
# word was found.
$word, @visited
) {
# Print the word, along with the time taken (if $verbose).
say ($verbose ??
"\n" ~ $word ~ " [" ~ DateTime.now - $initial ~ "𝑠]" !!
$word);
# Print the puzzle, highlighting the path.
if $verbose {
for ^@puzzle.elems -> $y {
print " " x 3;
for ^@puzzle[$y].elems -> $x {
print " ", (
@visited[$y][$x] ??
(%𝒻𝒶𝓃𝒸𝓎-𝒸𝒽𝒶𝓇𝓈{@puzzle[$y][$x]} // @puzzle[$y][$x]) !!
@puzzle[$y][$x]
);
}
print "\n";
}
}
}
}
}
# Modify USAGE to include input file format.
sub USAGE {
say $*USAGE;
say "\nInput file format:
n a t k
i m e c
a* r d e
t* e c h";
}