Module: Tins::StringCamelize

Defined in:
lib/tins/string_camelize.rb

Overview

Tins::StringCamelize provides methods for converting snake_case strings to camelCase or PascalCase format.

This module contains the ‘camelize` method which is commonly used in Ruby applications, particularly in Rails-style naming conventions where developers need to convert between different naming styles.

Examples:

Converting snake_case to PascalCase (default)

"snake_case_string".camelize
# => "SnakeCaseString"

Converting snake_case to camelCase

"snake_case_string".camelize(:lower)
# => "snakeCaseString"

Handling nested module paths

"my/module/class_name".camelize
# => "My::Module::ClassName"

Instance Method Summary collapse

Instance Method Details

#camelize(first_letter = :upper) ⇒ String Also known as: camelcase

Convert a snake_case string to camelCase or PascalCase format.

This method handles various naming conventions:

  • Converts snake_case to PascalCase (default) or camelCase

  • Handles nested module paths with ‘/’ separators

  • Supports different first letter cases

Parameters:

  • first_letter (Symbol, Boolean) (defaults to: :upper) —

    Controls capitalization of first letter

Options Hash (first_letter):

  • :upper (Object) — default: default —

    Convert first letter to uppercase (PascalCase)

  • :lower (Object) —

    Convert first letter to lowercase (camelCase)

  • true (Object) —

    Same as :upper

  • false (Object) —

    Same as :lower

Returns:

  • (String) —

    A new string in camelCase or PascalCase format



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# File 'lib/tins/string_camelize.rb', line 34

def camelize(first_letter = :upper)
  case first_letter
  when :upper, true
    gsub(/\/(.?)/) { "::#{$1.upcase}" }.gsub(/(?:^|_)(.)/) { $1.upcase }
  when :lower, false
    self[0].chr.downcase + camelize[1..-1]
  end
end