dwaite

#include <stdio.h>

/* prints 78.882004 */
int main(int argc, char** argv) {
   float f = 78.882;
   printf("%f\n", f);
   return 0;
}

dwaite

$ RBXOPT=-Xprofile\ -Xprofiler.graph\ -Xprofiler.full_report rbx -S rspec spec -f p &>foo
bash-3.2$ vim foo
bash-3.2$ grep Array#map foo
                  0.00      0.22          1               Array#map [74]
[74]      0.3     0.00      0.22          1           Array#map [74]
                  0.00      0.22          1               Array#map [74]
                  0.00      0.22          4               Array#map [76]
[76]      0.3     0.00      0.22          4           Array#map [76]
                  0.00      0.22          4               Array#map [76]
                  0.00      0.22          1               Array#map [80]

dwaite

ruby-1.9.2-p180 :008 > z = Fiber.new{Thread.current}.resume
 => #<Thread:0x00000100887678 run> 
ruby-1.9.2-p180 :009 > Thread.current
 => #<Thread:0x00000100887678 run> 
ruby-1.9.2-p180 :010 > z = Fiber.new{Thread.current.object_id}.resume
 => 2151955260 
ruby-1.9.2-p180 :011 > Thread.current.object_id
 => 2151955260 

dwaite

def foo
  puts "before: '#{$~}'"
  /foo/ =~ 'foo'
  puts "after: '#{$~}'"
  clear_last_match
  puts "after call: '#{$~}' (should still be set)"
end

def clear_last_match
  $~ = nil

dwaite

  # Performs normal match and returns MatchData object from $~ or nil.
  def match(str)
    unless str
      Regexp.last_match = nil
      return nil
    end

    str = StringValue(str)

    Regexp.last_match = search_region(str, 0, str.size, true)

dwaite

  # Performs normal match and returns MatchData object from $~ or nil.
  def match(str)
    unless str
      Regexp.last_match = nil
      return nil
    end

    str = StringValue(str)

    Regexp.last_match = search_region(str, 0, str.size, true)

dwaite

rbx-head-hydra :002 > foo = /foo/.match "foo"
 => #<MatchData "foo"> 
rbx-head-hydra :003 > bar = /bar/.match "bar"
 => #<MatchData "bar"> 
rbx-head-hydra :004 > $~
 => #<MatchData "bar"> 
rbx-head-hydra :005 > $~ = foo
 => #<MatchData "foo"> 
rbx-head-hydra :006 > $~
 => #<MatchData "bar"> 

dwaite

diff --git a/spec/ruby/language/regexp/back-references_spec.rb b/spec/ruby/langu
index c09a165..fe0d9e0 100644
--- a/spec/ruby/language/regexp/back-references_spec.rb
+++ b/spec/ruby/language/regexp/back-references_spec.rb
@@ -7,6 +7,13 @@ describe "Regexps with back-references" do
     $~.to_a.should == ["ll"]
   end
 
+  it 'allows the $~ pseudo-global varable to be assigned' do
+    "hello" =~ /l+/

dwaite

$ bundle exec rspec spec -fd

Callisto::Lexer
  #tokenize
    tokenizes a blank message to an empty array
    tokenizes 'key' into a single identifier
    tokenizes 'foo bar' into two identifiers
    tokenizes hex numbers
    tokenizes integers
    tokenizes numbers starting with a decimal point

dwaite

rvm install --trace --branch hydra rbx-hydra
--trace --branch hydra rbx-hydra

rvm 1.2.8 by Wayne E. Seguin (wayneeseguin@gmail.com) [http://rvm.beginrescueend.com/]

+ [[ -z '' ]]
+ export 'PS4=+[${BASH_SOURCE}] : ${LINENO} : ${FUNCNAME[0]:+${FUNCNAME[0]}() $ }'
+ PS4='+[${BASH_SOURCE}] : ${LINENO} : ${FUNCNAME[0]:+${FUNCNAME[0]}() $ }'
+[/Users/david/.rvm/scripts/cli] : 705 : __rvm_parse_args() $ [[ -z install ]]
+[/Users/david/.rvm/scripts/cli] : 707 : __rvm_parse_args() $ [[ 0 -eq 1 ]]