ted@linux-jp04:~/Work/Projects/misc.tests> ./compress.multiple.spaces.to.single.space.pl
               Rate compress_3 compress_1 compress_2 split_join     squash
compress_3 135174/s         --        -2%        -6%       -34%       -45%
compress_1 137798/s         2%         --        -4%       -33%       -44%
compress_2 143178/s         6%         4%         --       -30%       -42%
split_join 205421/s        52%        49%        43%         --       -17%
squash     247547/s        83%        80%        73%        21%         --
'compress_1' => ' Mary had a little lamb. '
'compress_2' => ' Mary had a little lamb. '
'compress_3' => ' Mary had a little lamb. '
'squash' => ' Mary had a little lamb. '
'split_join' => 'Mary had a little lamb.'
ted@linux-jp04:~/Work/Projects/misc.tests> ./trim.ws.pl
                 Rate double_plus2 regex_or trim for_plus for_star double_star one_liner double_plus replace
double_plus2  69971/s           --      -5% -21%     -28%     -36%        -37%      -43%        -46%    -46%
regex_or      73562/s           5%       -- -17%     -24%     -33%        -34%      -40%        -43%    -44%
trim          88942/s          27%      21%   --      -8%     -19%        -20%      -27%        -32%    -32%
for_plus      96591/s          38%      31%   9%       --     -12%        -13%      -21%        -26%    -26%
for_star     109941/s          57%      49%  24%      14%       --         -1%      -10%        -16%    -16%
double_star  111060/s          59%      51%  25%      15%       1%          --       -9%        -15%    -15%
one_liner    122651/s          75%      67%  38%      27%      12%         10%        --         -6%     -6%
double_plus  130149/s          86%      77%  46%      35%      18%         17%        6%          --     -0%
replace      130236/s          86%      77%  46%      35%      18%         17%        6%          0%      --                                                                      
'trim' => 'Mary had a little lamb.'                                                                                                                                               
'double_star' => 'Mary had a little lamb.'                                                                                                                                        
'double_plus' => 'Mary had a little lamb.'                                                                                                                                        
'double_plus2' => 'Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.  Mary had a little lamb.'                                                                                                                                                                      
'replace' => 'Mary had a little lamb.'                                                                                                                                            
'for_star' => 'Mary had a little lamb.'                                                                                                                                           
'for_plus' => 'Mary had a little lamb.'                                                                                                                                           
'regex_or' => 'Mary had a little lamb.'                                                                                                                                           
'one_liner' => 'Mary had a little lamb.'                                                                                                                                          
ted@linux-jp04:~/Work/Projects/misc.tests>