X-Git-Url: http://git.shiar.nl/barcat.git/blobdiff_plain/016754c22c9ea37f25857c0ded629b053de34a35..beb81e63d94ed634661c385bf676ceb3544f9079:/barcat diff --git a/barcat b/barcat index 0d843c1..d4a8274 100755 --- a/barcat +++ b/barcat @@ -4,8 +4,9 @@ use warnings; use utf8; use List::Util qw( min max sum ); use open qw( :std :utf8 ); +use re '/msx'; -our $VERSION = '1.06'; +our $VERSION = '1.07'; use Getopt::Long '2.33', qw( :config gnu_getopt ); my %opt; @@ -15,15 +16,15 @@ GetOptions(\%opt, 'field|f=s' => sub { eval { local $_ = $_[1]; - $opt{anchor} = /^[0-9]+$/ ? qr/(?:\S*\h+){$_}\K/ : qr/$_/; - } or die $@ =~ s/(?: at .+)?$/ for option $_[0]/r; + $opt{anchor} = /\A[0-9]+\z/ ? qr/(?:\S*\h+){$_}\K/ : qr/$_/; + } or die $@ =~ s/(?:\ at\ \N+)?\Z/ for option $_[0]/r; }, 'human-readable|H!', 'interval|t:i', 'trim|length|l=s' => sub { my ($optname, $optval) = @_; $optval =~ s/%$// and $opt{trimpct}++; - $optval =~ m/^-?[0-9]+$/ or die( + $optval =~ m/\A-?[0-9]+\z/ or die( "Value \"$optval\" invalid for option $optname", " (number or percentage expected)\n" ); @@ -38,7 +39,7 @@ GetOptions(\%opt, my ($optname, $optval) = @_; $optval ||= 0; ($opt{hidemin}, $opt{hidemax}) = - $optval =~ m/\A (?: ([0-9]+)? - )? ([0-9]+)? \z/x or die( + $optval =~ m/\A (?: ([0-9]+)? - )? ([0-9]+)? \z/ or die( "Value \"$optval\" invalid for option limit", " (range expected)\n" ); @@ -77,12 +78,12 @@ GetOptions(\%opt, exit; }, 'usage|h' => sub { - local $/; + local $/ = undef; # slurp my $pod = readline *DATA; - $pod =~ s/^=over\K/ 25/m; # indent options list - $pod =~ s/^=item \N*\n\n\N*\n\K(?:(?:^=over.*?^=back\n)?(?!=)\N*\n)*/\n/msg; + $pod =~ s/^=over\K/ 25/; # indent options list + $pod =~ s/^=item\ \N*\n\n\N*\n\K (?:(?:^=over.*?^=back\n)?(?!=)\N*\n)*/\n/g; $pod =~ s/[.,](?=\n)//g; # trailing punctuation - $pod =~ s/^=item \K(?=--)/____/gm; # align long options + $pod =~ s/^=item\ \K(?=--)/____/g; # align long options # abbreviate indicators $pod =~ s/\Q>.../s>/g; $pod =~ s/<(?:number|count|seconds)>/N/g; @@ -99,7 +100,7 @@ GetOptions(\%opt, $parser->parse_string_document($pod); $contents =~ s/\n(?=\n\h)//msg; # strip space between items - $contents =~ s/^ \K____/ /gm; # nbsp substitute + $contents =~ s/^\ \ \K____/ /g; # nbsp substitute print $contents; exit; }, @@ -123,7 +124,7 @@ $opt{'signal-stat'} //= exists $SIG{INFO} ? 'INFO' : 'QUIT'; $opt{markers} //= '=avg >31.73v <68.27v +50v |0'; $opt{palette} //= $opt{color} && [31, 90, 32]; $opt{hidemin} = ($opt{hidemin} || 1) - 1; -$opt{input} = @ARGV && $ARGV[0] =~ m/\A[-0-9]/ ? \@ARGV : undef +$opt{input} = (@ARGV && $ARGV[0] =~ m/\A[-0-9]/) ? \@ARGV : undef and undef $opt{interval}; my (@lines, @values, @order); @@ -146,20 +147,22 @@ if (defined $opt{interval}) { } my $valmatch = qr< - $opt{anchor} ( \h* -? [0-9]* \.? [0-9]+ (?: e[+-]?[0-9]+ )? |) + $opt{anchor} ( \h* -? [0-9]* [.]? [0-9]+ (?: e[+-]?[0-9]+ )? |) >x; while (defined ($_ = $opt{input} ? shift @{ $opt{input} } : readline)) { s/\r?\n\z//; - s/^\h*// unless $opt{unmodified}; - push @values, s/$valmatch/\n/ && $1; - push @order, $1 if length $1; - if (defined $opt{trim} and defined $1) { + s/\A\h*// unless $opt{unmodified}; + my $valnum = s/$valmatch/\n/ && $1; + push @values, $valnum; + push @order, $valnum if length $valnum; + if (defined $opt{trim} and defined $valnum) { my $trimpos = abs $opt{trim}; - $trimpos -= length $1 if $opt{unmodified}; + $trimpos -= length $valnum if $opt{unmodified}; if ($trimpos <= 1) { $_ = substr $_, 0, 2; } elsif (length > $trimpos) { + # cut and replace (intentional lvalue for speed, contrary to PBP) substr($_, $trimpos - 1) = '…'; } } @@ -182,8 +185,8 @@ sub color { sub sival { my $unit = int(log(abs $_[0] || 1) / log(10) - 3*($_[0] < 1) + 1e-15); - my $float = $_[0] !~ /^0*[-0-9]{1,3}$/; - sprintf('%3.*f%1s', + my $float = $_[0] !~ /\A0*[-0-9]{1,3}\z/; + return sprintf('%3.*f%1s', $float && ($unit % 3) == ($unit < 0), # tenths $_[0] / 1000 ** int($unit/3), # number $#{$opt{units}} * 1.5 < abs $unit ? "e$unit" : $opt{units}->[$unit/3] @@ -193,9 +196,8 @@ sub sival { sub show_lines { state $nr = $opt{hidemin}; -@lines and @lines > $nr or return; @lines or return; -@lines > $nr or return unless $opt{hidemin}; +@lines > $nr or return; @order = sort { $b <=> $a } @order unless tied @order; my $maxval = $opt{maxval} // ( @@ -208,7 +210,7 @@ my $lenval = $opt{'value-length'} // max map { length } @order; my $len = defined $opt{trim} && $opt{trim} <= 0 ? -$opt{trim} + 1 : max map { length $values[$_] && length $lines[$_] } 0 .. min $#lines, $opt{hidemax} || (); # left padding -my $size = $range && +my $size = defined $opt{width} && $range && ($opt{width} - $lenval - $len) / $range; # bar multiplication my @barmark; @@ -220,13 +222,22 @@ if ($opt{markers} and $size > 0) { return sum(@order) / @order; } elsif ($func =~ /\A([0-9.]+)v\z/) { + die "Invalid marker $char: percentile $1 out of bounds\n" if $1 > 100; my $index = $#order * $1 / 100; return ($order[$index] + $order[$index + .5]) / 2; } - else { + elsif ($func =~ /\A-?[0-9.]+\z/) { return $func; } - } - $minval; + else { + die "Unknown marker $char: $func\n"; + } + }; + defined $pos or do { + warn $@ if $@; + next; + }; + $pos -= $minval; $pos >= 0 or next; color(36) for $barmark[$pos * $size] = $char; } @@ -245,8 +256,6 @@ if ($opt{markers} and $size > 0) { } } -@lines > $nr or return if $opt{hidemin}; - say( color(31), sprintf('%*s', $lenval, $minval), color(90), '-', color(36), '+', @@ -267,7 +276,7 @@ while ($nr <= $#lines) { if ($opt{spark}) { say '' if $opt{width} and $nr and $nr % $opt{width} == 0; print color($color), $opt{spark}->[ - !$val ? 0 : # blank + !$val || !$#{$opt{spark}} ? 0 : # blank $val == $order[0] ? -1 : # max $val == $order[-1] ? 1 : # min $#{$opt{spark}} < 3 ? 1 : @@ -291,6 +300,7 @@ continue { } say $opt{palette} ? color(0) : '' if $opt{spark}; + return $nr; } sub show_stat { @@ -311,6 +321,7 @@ sub show_stat { ); } say ''; + return 1; } sub show_exit { @@ -451,6 +462,11 @@ or alternatively I<1;30> for bright black. In case of additional colors, the last is used for values equal to the maximum, the first for minima. If unspecified, these are green and red respectively (I<31 90 32>). +Multiple intermediate colors will be distributed +relative to the size of values. + +Predefined color schemes are named I and I, +or I and I for 256-color variants. =item --spark[=] @@ -534,14 +550,18 @@ Any kind of database query with counts, preserving returned alignment: echo 'SELECT count(*),schemaname FROM pg_tables GROUP BY 2' | psql -t | barcat -u +In PostgreSQL from within the client: + + postgres=> SELECT sin(generate_series(0, 3, .1)) \g |barcat + Earthquakes worldwide magnitude 1+ in the last 24 hours: - https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/1.0_day.csv | - column -tns, | graph -f4 -u -l80% + curl https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/1.0_day.csv | + column -tns, | barcat -f4 -u -l80% External datasets, like movies per year: - curl https://github.com/prust/wikipedia-movie-data/raw/master/movies.json | + curl https://github.com/prust/wikipedia-movie-data/raw/master/movies.json -L | perl -054 -nlE 'say if s/^"year"://' | uniq -c | barcat But please get I to process JSON @@ -549,7 +569,7 @@ and replace the manual selection by C<< jq '.[].year' >>. Pokémon height comparison: - curl https://github.com/Biuni/PokemonGO-Pokedex/raw/master/pokedex.json | + curl https://github.com/Biuni/PokemonGO-Pokedex/raw/master/pokedex.json -L | jq -r '.pokemon[] | [.height,.num,.name] | join(" ")' | barcat USD/EUR exchange rate from CSV provided by the ECB: @@ -560,7 +580,7 @@ USD/EUR exchange rate from CSV provided by the ECB: Total population history in XML from the World Bank: - curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL | + curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL -L | xmllint --xpath '//*[local-name()="date" or local-name()="value"]' - | sed -r 's,,\n,g; s,(<[^>]+>)+, ,g' | barcat -f1 -H @@ -580,7 +600,7 @@ Activity graph of the last days (substitute date C<-v-{}d> on BSD): ( git log --pretty=%ci --since=30day | cut -b-10 seq 0 30 | xargs -i date +%F -d-{}day ) | - sort | uniq -c | awk '$1--' | graph --spark + sort | uniq -c | awk '$1--' | barcat --spark =head1 AUTHOR