8e0f88d558
There a mixed bag of small optimizations here:
- Since underscores are converted to spaces and that we remove all leading underscores. By changing the order of operations we can leverage the faster `.lstrip!`.
- Corrected the gsub regexp to no longer match empty strings (`+` vs `*`).
- Modify the matched strings in place to save on allocations
```ruby
require 'benchmark/ips'
require 'active_support/all'
module ActiveSupport
module Inflector
def humanize2(lower_case_and_underscored_word, capitalize: true, keep_id_suffix: false)
result = lower_case_and_underscored_word.to_s.dup
inflections.humans.each { |(rule, replacement)| break if result.sub!(rule, replacement) }
result.tr!("_", " ")
result.lstrip!
unless keep_id_suffix
result.delete_suffix!(" id")
end
result.gsub!(/([a-z\d]+)/i) do |match|
match.downcase!
inflections.acronyms[match] || match
end
if capitalize
result.sub!(/\A\w/) do |match|
match.upcase!
match
end
end
result
end
end
end
%w(foo foo_bar_id ____foo_bar).each do |str|
puts "== Comparing with #{str.inspect} (#{RUBY_VERSION}) =="
unless ActiveSupport::Inflector.humanize(str) == ActiveSupport::Inflector.humanize2(str)
raise "#{ActiveSupport::Inflector.humanize2(str)} != #{ActiveSupport::Inflector.humanize(str)}"
end
Benchmark.ips do |x|
x.report('humanize') { ActiveSupport::Inflector.humanize(str) }
x.report('humanize2') { ActiveSupport::Inflector.humanize2(str) }
x.compare!
end
puts
end
```
```
== Comparing with "foo" (2.7.2) ==
Warming up --------------------------------------
humanize 25.593k i/100ms
humanize2 29.256k i/100ms
Calculating -------------------------------------
humanize 263.989k (± 1.9%) i/s - 1.331M in 5.043110s
humanize2 299.883k (± 2.2%) i/s - 1.521M in 5.075478s
Comparison:
humanize2: 299882.5 i/s
humanize: 263989.1 i/s - 1.14x (± 0.00) slower
== Comparing with "foo_bar_id" (2.7.2) ==
Warming up --------------------------------------
humanize 18.187k i/100ms
humanize2 25.678k i/100ms
Calculating -------------------------------------
humanize 183.702k (± 1.5%) i/s - 927.537k in 5.050326s
humanize2 250.470k (± 2.5%) i/s - 1.258M in 5.026682s
Comparison:
humanize2: 250469.6 i/s
humanize: 183702.3 i/s - 1.36x (± 0.00) slower
== Comparing with "____foo_bar" (2.7.2) ==
Warming up --------------------------------------
humanize 18.577k i/100ms
humanize2 24.686k i/100ms
Calculating -------------------------------------
humanize 188.868k (± 1.5%) i/s - 947.427k in 5.017524s
humanize2 255.650k (± 1.8%) i/s - 1.284M in 5.022833s
Comparison:
humanize2: 255649.8 i/s
```
|
||
|---|---|---|
| .. | ||
| bin | ||
| lib | ||
| test | ||
| .gitignore | ||
| activesupport.gemspec | ||
| CHANGELOG.md | ||
| MIT-LICENSE | ||
| Rakefile | ||
| README.rdoc | ||
= Active Support -- Utility classes and Ruby extensions from Rails
Active Support is a collection of utility classes and standard library
extensions that were found useful for the Rails framework. These additions
reside in this package so they can be loaded as needed in Ruby projects
outside of Rails.
You can read more about the extensions in the {Active Support Core Extensions}[https://edgeguides.rubyonrails.org/active_support_core_extensions.html] guide.
== Download and installation
The latest version of Active Support can be installed with RubyGems:
$ gem install activesupport
Source code can be downloaded as part of the Rails project on GitHub:
* https://github.com/rails/rails/tree/main/activesupport
== License
Active Support is released under the MIT license:
* https://opensource.org/licenses/MIT
== Support
API documentation is at:
* https://api.rubyonrails.org
Bug reports for the Ruby on Rails project can be filed here:
* https://github.com/rails/rails/issues
Feature requests should be discussed on the rails-core mailing list here:
* https://discuss.rubyonrails.org/c/rubyonrails-core