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Merged
nobu merged 3 commits into from
Nov 30, 2021
Merged

Sync from ruby #5

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832ea92
lib/pp.rb (PP.pp): Use io/console's winsize by default
mame Nov 30, 2021
394ad73
lib/pp.rb (width_for): ignore Errno::EINVAL
mame Nov 30, 2021
1c39546
lib/pp.rb (width_for): Ignore all syscall errors
mame Nov 30, 2021
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11 changes: 10 additions & 1 deletion lib/pp.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -61,14 +61,23 @@
# Tanaka Akira <akr@fsij.org>

class PP < PrettyPrint
def PP.width_for(out)
begin
require 'io/console'
_, width = out.winsize
rescue LoadError, NoMethodError, SystemCallError
end
(width || ENV['COLUMNS']&.to_i&.nonzero? || 80) - 1
end

# Outputs +obj+ to +out+ in pretty printed format of
# +width+ columns in width.
#
# If +out+ is omitted, <code>$></code> is assumed.
# If +width+ is omitted, 79 is assumed.
#
# PP.pp returns +out+.
def PP.pp(obj, out=$>, width=79)
def PP.pp(obj, out=$>, width=width_for(out))
q = PP.new(out, width)
q.guard_inspect_key {q.pp obj}
q.flush
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