} 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 $opt{unmodified};
if ($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 = $1;
+ #TODO log
+ for (my $next = $1; $next < $maxval; $next += $range[0]) {
+ push @range, $next;
+ }
+ 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};
+ $fmt =~ s[\$\{ \h*+ ((?: [^{}]++ | \{(?1)\} )+) \}]{
+ my ($name, $cmd) = split /\s*;/, $1, 2;
+ my $format = $name =~ s/\+// || $name !~ s/\#// && $opt{reformat};
+ local $_ = $vars->{$name};
if (defined) {
- $_ = $opt{'value-format'}->($_) if $opt{reformat};
- if ($+{cmd}) {
- eval $+{cmd};
- warn "Error in \$$1 report: $@" if $@;
+ $_ = $opt{'value-format'}->($_) if $format;
+ if ($cmd) {
+ eval $cmd;
+ warn "Error in \$$name report: $@" if $@;
}
$_;
}
else {
- warn "Unknown variable \$$1 in report\n";
- "\$$1";
+ warn "Unknown variable \$$name in report\n";
+ "\$$name";
}
}eg;
return $fmt;
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: