diff options
Diffstat (limited to 'code/extensions/basic.rb')
| -rw-r--r-- | code/extensions/basic.rb | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/code/extensions/basic.rb b/code/extensions/basic.rb index 1bc67519..1e890a04 100644 --- a/code/extensions/basic.rb +++ b/code/extensions/basic.rb @@ -8,6 +8,7 @@ class MutableNumber end def add(n=1) @value += n end def sub(n=1) @value -= n end + def set(n) @value = n end end class Array @@ -15,6 +16,10 @@ class Array # TODO: this can be done better... n.times { push shift } end + def cdr(n = 1) + self[n .. -1] + end + alias car first end class String @@ -65,6 +70,14 @@ class String res.gsub!("\000", '\\\\') return res end + + ## encodes a string for the shell. + ## peter's song.mp3 -> 'peter'\''s song.mp3' + ## + ## system("mplayer #{ ~some_video_file }") + def ~ + "'#{ gsub("'", "'\\\\''") }'" + end end class Numeric |