Sha256: 97a67680d5932dfab5145a5f874f18f9fed3366e988416c100e05c30103eb752
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Versions: 6
Compression:
Stored size: 1.77 KB
Contents
# attempt to call stty; if failure, raise error
`stty 2> /dev/null`
if $?.exitstatus != 0
raise "stty command returned nonzero exit status"
end
warn "io/console on JRuby shells out to stty for most operations"
# Non-Windows assumes stty command is available
class IO
if RbConfig::CONFIG['host_os'].downcase =~ /linux/ && File.exists?("/proc/#{Process.pid}/fd")
def stty(*args)
`stty #{args.join(' ')} < /proc/#{Process.pid}/fd/#{fileno}`
end
else
def stty(*args)
`stty #{args.join(' ')}`
end
end
def raw(*)
saved = stty('-g')
stty('raw')
yield self
ensure
stty(saved)
end
def raw!(*)
stty('raw')
end
def cooked(*)
saved = stty('-g')
stty('-raw')
yield self
ensure
stty(saved)
end
def cooked!(*)
stty('-raw')
end
def echo=(echo)
stty(echo ? 'echo' : '-echo')
end
def echo?
(stty('-a') =~ / -echo /) ? false : true
end
def noecho
saved = stty('-g')
stty('-echo')
yield self
ensure
stty(saved)
end
# Not all systems return same format of stty -a output
IEEE_STD_1003_2 = '(?<rows>\d+) rows; (?<columns>\d+) columns'
UBUNTU = 'rows (?<rows>\d+); columns (?<columns>\d+)'
def winsize
match = stty('-a').match(/#{IEEE_STD_1003_2}|#{UBUNTU}/)
[match[:rows].to_i, match[:columns].to_i]
end
def winsize=(size)
size = size.to_ary unless size.kind_of?(Array)
sizelen = size.size
if sizelen != 2 && sizelen != 4
raise ArgumentError.new("wrong number of arguments (given #{sizelen}, expected 2 or 4)")
end
row, col, xpixel, ypixel = size
if sizelen == 4
warn "stty io/console does not support pixel winsize"
end
stty("rows #{row} cols #{col}")
end
def iflush
end
def oflush
end
def ioflush
end
end
Version data entries
6 entries across 6 versions & 1 rubygems