Module: Ramaze::CoreExtensions::String

Defined in:

lib/ramaze/snippets/string/esc.rb,
lib/ramaze/snippets/string/color.rb,
lib/ramaze/snippets/string/unindent.rb,
lib/ramaze/snippets/string/camel_case.rb,
lib/ramaze/snippets/string/snake_case.rb

Overview

Instance Method Summary (collapse)

• - (Object) camel_case

  Simple transformation to CamelCase from snake_case.

• - (Object) escape(which = :html) (also: #esc)

  String#escape is an extensible escaping mechanism for string.

• - (Object) snake_case

  convert to snake_case from CamelCase.

• - (Object) unindent (also: #ui)

  Useful for writing indented String and unindent on demand, based on the first line with indentation.

• - (Object) unindent! (also: #ui!)

  Destructive variant of undindent, replacing the String.

'foo_bar'.camel_case # => 'FooBar'

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# File 'lib/ramaze/snippets/string/camel_case.rb', line 14

def camel_case
  split('_').map{|e| e.capitalize}.join
end

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# File 'lib/ramaze/snippets/string/esc.rb', line 13

def escape which = :html
  case which
  when :html
    Rack::Utils.escape_html(self)
  when :cgi
    Rack::Utils.escape(self)
  when :uri
    ::URI.escape(self)
  else
    raise ArgumentError, "do not know how to escape '#{ which }'"
  end
end

'FooBar'.snake_case # => 'foo_bar'

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# File 'lib/ramaze/snippets/string/snake_case.rb', line 13

def snake_case
  gsub(/\B[A-Z][^A-Z]/, '_\&').downcase.gsub(' ', '_')
end

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# File 'lib/ramaze/snippets/string/unindent.rb', line 7

def unindent
  find_indent = proc{ |l| l.find{|l| !l.strip.empty?}.to_s[/^(\s+)/, 1] }

  lines = self.split("\n")
  space = find_indent[lines]
  space = find_indent[lines.reverse] unless space

  strip.gsub(/^#{space}/, '')
end

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# File 'lib/ramaze/snippets/string/unindent.rb', line 19

def unindent!
  self.replace unindent
end