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Ensure TerminalInfo.screen_size returns numbers safely

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This commit is contained in:
Conrad Irwin 2012-11-29 10:23:43 -08:00
parent 6a9dd8ee70
commit 408fdb98d2
1 changed files with 11 additions and 2 deletions
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13
lib/pry/terminal_info.rb
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@ -3,6 +3,15 @@ class Pry::TerminalInfo
#
# If the window size cannot be determined, return nil.
def self.screen_size
rows, cols = actual_screen_size
if rows && cols
[rows.to_i, cols.to_i]
else
nil
end
end
def self.actual_screen_size
[
# Some readlines also provides get_screen_size.
# Readline comes before IO#winsize because jruby sometimes defaults winsize to [25, 80]
@ -18,9 +27,9 @@ class Pry::TerminalInfo
# If the user is running within ansicon, then use the screen size
# that it reports (same caveats apply as with ROWS and COLUMNS)
ENV['ANSICON'] =~ /\((.*)x(.*)\)/ && [$2, $1]
ENV['ANSICON'] =~ /\((.*)x(.*)\)/ && [$2, $1],
].detect do |(_, cols)|
cols.to_i > 0
end.map!(&:to_i)
end
end
end