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Diffstat (limited to 'jni/ruby/lib/irb/ext/math-mode.rb')
| -rw-r--r-- | jni/ruby/lib/irb/ext/math-mode.rb | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/jni/ruby/lib/irb/ext/math-mode.rb b/jni/ruby/lib/irb/ext/math-mode.rb new file mode 100644 index 0000000..33e9968 --- /dev/null +++ b/jni/ruby/lib/irb/ext/math-mode.rb @@ -0,0 +1,47 @@ +# +# math-mode.rb - +# $Release Version: 0.9.6$ +# $Revision: 47112 $ +# by Keiju ISHITSUKA(keiju@ruby-lang.org) +# +# -- +# +# +# +require "mathn" + +module IRB + class Context + # Returns whether bc mode is enabled. + # + # See #math_mode= + attr_reader :math_mode + # Alias for #math_mode + alias math? math_mode + + # Sets bc mode, which loads +lib/mathn.rb+ so fractions or matrix are + # available. + # + # Also available as the +-m+ command line option. + # + # See IRB@Command+line+options and the unix manpage <code>bc(1)</code> for + # more information. + def math_mode=(opt) + if @math_mode == true && !opt + IRB.fail CantReturnToNormalMode + return + end + + @math_mode = opt + if math_mode + main.extend Math + print "start math mode\n" if verbose? + end + end + + def inspect? + @inspect_mode.nil? && !@math_mode or @inspect_mode + end + end +end + |