A C extension for Ruby that provides optimized string replacement operations, with special handling for PHP serialized strings (commonly used in WordPress).

Add this line to your application's Gemfile:

gem 'table_string_replacer'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install table_string_replacer

require 'table_string_replacer'

# Simple batch replacement
content = "Hello world, hello ruby"
replacements = [
  ["Hello", "Hi"],
  ["world", "everyone"],
  ["ruby", "Rails"]
]

# Perform all replacements in a single pass
result = TableStringReplacer.batch_replace(content, replacements)
# => "Hi everyone, hello Rails"

# For WordPress serialized data
serialized = 's:15:"http://old.com/";'
old_str = "http://old.com"
new_str = "https://new.com"

# This will handle the PHP serialized string length correctly
result = TableStringReplacer.serialized_str_replace(serialized, old_str, new_str)
# => 's:16:"https://new.com/";'

This gem is especially useful for batch operations on large strings where you need to make multiple replacements in a single pass. The C extension is typically much faster than Ruby's native string replacement for large inputs.

# Check if the C extension is faster for your workload
TableStringReplacer.faster_than_ruby?(your_string, your_replacements)

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

1. Make your code changes and ensure all tests pass with rake test
2. Update the version number in lib/table_string_replacer/version.rb following Semantic Versioning principles
3. Update the CHANGELOG.md file with your changes
4. Commit your changes to git
5. Run bundle exec rake release, which will:
   • Create a git tag for the version
   • Push git commits and tags
   • Build the gem and push it to RubyGems.org

Alternatively, you can do these steps manually:

1. Build the gem: gem build table_string_replacer.gemspec
2. Push to RubyGems: gem push table_string_replacer-x.x.x.gem (where x.x.x is the version number)

Bug reports and pull requests are welcome on GitHub at https://github.com/bv-ankit/table_string_replacer.

The gem is available as open source under the terms of the MIT License.