my ($optname, $optval) = @_;
$optval ||= 0;
$optval =~ /\A-[0-9]+\z/ and $optval .= '-'; # tail shorthand
+ $optval =~ s/[+]/--/;
($opt{hidemin}, $opt{hidemax}) =
- $optval =~ m/\A (?: (-? [0-9]+)? - )? ([0-9]+)? \z/ or die(
+ $optval =~ m/\A (?: (-? [0-9]+)? - )? (-? [0-9]+)? \z/ or die(
"Value \"$optval\" invalid for option limit",
" (range expected)\n"
);
+ s/\A-0*\z// and $_ ||= undef for $opt{hidemax} // ();
},
'log|e!',
'header!',
} or warn $@, "Expect slowdown with large datasets!\n";
}
-my $valmatch = qr<
- $opt{anchor} ( \h* -? [0-9]* [.]? [0-9]+ (?: e[+-]?[0-9]+ )? |)
->x;
+my $float = qr<[0-9]* [.]? [0-9]+ (?: e[+-]?[0-9]+ )?>; # positive numberish
+my $valmatch = qr< $opt{anchor} ( \h* -? $float |) >x;
while (defined ($_ = $opt{input} ? shift @{ $opt{input} } : readline)) {
s/\r?\n\z//;
s/\A\h*// unless $opt{unmodified};
my $limit = $#lines;
if (defined $opt{hidemax}) {
- if ($opt{hidemin} and $opt{hidemin} < 0) {
+ if ($opt{hidemax} < 0) {
+ $limit = $nr - $opt{hidemax} - 1;
+ }
+ elsif ($opt{hidemin} and $opt{hidemin} < 0) {
$limit -= $opt{hidemax} - 1;
}
elsif ($opt{hidemax} <= $limit) {
$range &&= log $range if $opt{log};
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
+ max(map { length $values[$_] && length $lines[$_] } $nr .. $limit)
+ // 0; # left padding
my $size = defined $opt{width} && $range &&
($opt{width} - $lenval - $len - !!$opt{indicators}); # bar multiplication
if ($opt{markers} and $size > 0) {
for my $markspec (split /\h/, $opt{markers}) {
my ($char, $func) = split //, $markspec, 2;
- my $pos = eval {
+ my @pos = eval {
if ($func eq 'avg') {
return sum(@order) / @order;
}
elsif ($func =~ /\A-?[0-9.]+\z/) {
return $func;
}
+ elsif ($func =~ /\A\/($float)\z/) {
+ my @range = my $multiple = my $next = $1;
+ while ($next < $maxval) {
+ $multiple *= 10 if $opt{log};
+ push @range, $next += $multiple;
+ }
+ return @range;
+ }
else {
die "Unknown marker $char: $func\n";
}
};
- defined $pos or do {
+ @pos or do {
warn $@ if $@;
next;
};
- $pos -= $minval;
- $pos &&= log $pos if $opt{log};
- $pos >= 0 or next;
- color(36) for $barmark[$pos / $range * $size] = $char;
+ for my $pos (@pos) {
+ $pos -= $minval;
+ $pos &&= log $pos if $opt{log};
+ $pos >= 0 or next;
+ color(36) for $barmark[$pos / $range * $size] = $char;
+ }
}
state $lastmax = $maxval;
$linemin += @lines;
$linemax = @lines - $linemax;
}
- printf '%.8g of ', $opt{'value-format'}->(
- sum(grep {length} @values[$linemin .. $linemax]) // 0
- );
+ print varfmt('${sum+} of ', {
+ lines => $linemax - $linemin + 1,
+ sum => sum(0, grep {length} @values[$linemin .. $linemax]),
+ });
}
if (@order) {
my $total = sum @order;
- my $fmt = '${sum;color(1)} total in ${count} values';
- $fmt .= ' over ${lines} lines' if @order != @lines;
+ my $fmt = '${sum+;color(1)} total in ${count#} values';
+ $fmt .= ' over ${lines#} lines' if @order != @lines;
$fmt .= " ($_)" for $opt{report} || ();
print varfmt($fmt, {
sum => $total,
sub varfmt {
my ($fmt, $vars) = @_;
- $fmt =~ s[\$\{ (\w+) (?<cmd>; (?: [^{}]+ | \{.*?\} )*)? \}]{
- local $_ = $vars->{$1}; #TODO //
- $_ = $opt{'value-format'}->($_) if $opt{reformat};
- eval $+{cmd} if $+{cmd}; #TODO $@
- $_;
+ $fmt =~ s[\$\{ \h*+ ((?: [^{}]++ | \{(?1)\} )+) \}]{
+ my ($name, $cmd) = split /\s*;/, $1, 2;
+ my $format = $name =~ s/\+// || $name !~ s/\#// && $opt{reformat};
+ local $_ = $vars->{$name};
+ if (defined) {
+ $_ = $opt{'value-format'}->($_) if $format;
+ if ($cmd) {
+ eval $cmd;
+ warn "Error in \$$name report: $@" if $@;
+ }
+ $_;
+ }
+ else {
+ warn "Unknown variable \$$name in report\n";
+ "\$$name";
+ }
}eg;
return $fmt;
}
Output partial progress every given number of
seconds or input lines
-l, --length=[-]SIZE[%] Trim line contents (between number and bars)
- -L, --limit[=(N|-LAST|START-[END])]
- Stop output after a number of lines
+ -L, --limit=[N|[-]START(-[END]|+N)]
+ Select a range of lines to display
-e, --log Logarithmic (exponential) scale instead of linear
--graph-format=CHAR Glyph to repeat for the graph line
-m, --markers=FORMAT Statistical positions to indicate on bars
Prepend a dash (i.e. make negative) to enforce padding
regardless of encountered contents.
-=item -L, --limit[=(<count> | -<last> | <start>-[<end>])]
+=item -L, --limit=[<count> | [-]<start>(-[<end>] | +<count>)]
-Stop output after a number of lines.
-A single value indicates the last line number (like C<head>),
+Select a range of lines to display.
+A single integer indicates the last line number (like C<head>),
or first line counting from the bottom if negative (like C<tail>).
-A specific range can be given by two values.
-All input is still counted and analyzed for statistics,
+A range consists of a starting line number followed by either
+a dash C<-> to an optional end, or plus sign C<+> with count.
+
+All hidden input is still counted and analyzed for statistics,
but disregarded for padding and bar size.
=item -e, --log
Exact value to match on the axis.
A vertical bar at the zero crossing is displayed by I<|0>
for negative values.
-For example I<:3.14> would show a colon at pi.
+For example I<π3.14> would locate pi.
+
+=item I</><interval>
+
+Repeated at every multiple of a number.
+For example I<:/1> for a grid at every integer.
=item <percentage>I<v>
curl http://api.worldbank.org/v2/country/1W/indicator/SP.POP.TOTL |
xmlstarlet sel -t -m '*/*' -v wb:date -o ' ' -v wb:value -n |
- barcat -f1 -H
+ barcat -f1 -H --markers=+/1e9
Population and other information for all countries:
git.shiar.nl / barcat.git / blobdiff