In Vim, for an entire file:
:%s/:\([^ ]*\)\(\s*\)=>/\1:/g
In the shell, for an entire project:
perl -pi -e 's/(?<![:]):([\w\d_]+)(\s*)=>/\1:/g' **/*.rb
Now, instead of those old-school hashes like this:
get "/", :agent => MOBILE_BROWSERS do
You’ll have new-school hashes like this:
get "/", agent: MOBILE_BROWSERS do
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