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authorMike Howard <mike@clove.com>2011-05-08 09:08:56 -0600
committerJosé Valim <jose.valim@gmail.com>2011-05-09 17:06:56 +0200
commit372d72445ba7cb2d79b2b087a51214f3c3d3d835 (patch)
tree9277e4f0b1fa38136705724b4c6a41e087394cb7 /activesupport/lib/active_support/xml_mini.rb
parent851a4eab3c06cb436d58f67782e484372c8ed53a (diff)
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xml_mini.rb:_dasherize() replacement 20 to 25% faster
Signed-off-by: José Valim <jose.valim@gmail.com>
Diffstat (limited to 'activesupport/lib/active_support/xml_mini.rb')
-rw-r--r--activesupport/lib/active_support/xml_mini.rb7
1 files changed, 3 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/xml_mini.rb b/activesupport/lib/active_support/xml_mini.rb
index d8f40ab8b1..5cadcf634b 100644
--- a/activesupport/lib/active_support/xml_mini.rb
+++ b/activesupport/lib/active_support/xml_mini.rb
@@ -139,10 +139,9 @@ module ActiveSupport
protected
def _dasherize(key)
- left = key.strip.rpartition(/^_*/)
- right = left.pop.partition(/_*$/)
- right.first.tr!('_ ', '--')
- left.concat(right).join
+ # $2 must be a non-greedy regex for this to work
+ left, middle, right = /\A(_*)(.*?)(_*)\Z/.match(key.strip)[1,3]
+ "#{left}#{middle.tr('_', '-')}#{right}"
end
# TODO: Add support for other encodings