Class: String

Inherits:
Object show all
Defined in:
lib/ruco/core_ext/string.rb,
lib/ruco/core_ext/string.rb

Overview

grosser.it/2010/12/31/ruby-string-indexes-indices-find-all-indexes-in-a-string

Instance Method Summary collapse

Instance Method Details

#ellipsize(options = {}) ⇒ Object

gist.github.com/20844 remove middle from strings exceeding max length.



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# File 'lib/ruco/core_ext/string.rb', line 46

def ellipsize(options={})
  max = options[:max] || 40
  delimiter = options[:delimiter] || "..."
  return self if self.size <= max
  remainder = max - delimiter.size
  offset = remainder / 2
  (self[0,offset + (remainder.odd? ? 1 : 0)].to_s + delimiter + self[-offset,offset].to_s)[0,max].to_s
end

#force_encoding(encoding) ⇒ Object 



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# File 'lib/ruco/core_ext/string.rb', line 27

def force_encoding(encoding)
  self
end

#indexes(needle) ⇒ Object 



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# File 'lib/ruco/core_ext/string.rb', line 58

def indexes(needle)
  found = []
  current_index = -1
  while current_index = index(needle, current_index+1)
    found << current_index
  end
  found
end

#leading_whitespace ⇒ Object 



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# File 'lib/ruco/core_ext/string.rb', line 17

def leading_whitespace
  match(/^\s*/)[0]
end

#leading_whitespace=(whitespace) ⇒ Object 



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# File 'lib/ruco/core_ext/string.rb', line 21

def leading_whitespace=(whitespace)
  sub!(/^\s*/, whitespace)
end

#naive_split(pattern) ⇒ Object

grosser.it/2011/08/28/ruby-string-naive-split-because-split-is-to-clever/ “ ”.split(‘ ’) == [] “ ”.naive_split(‘ ’) == [”,”,”,”] “”.split(‘ ’) == [] “”.naive_split(‘ ’) == [”]



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# File 'lib/ruco/core_ext/string.rb', line 7

def naive_split(pattern)
  pattern = /#{Regexp.escape(pattern)}/ unless pattern.is_a?(Regexp)
  result = split(pattern, -1)
  result.empty? ? [''] : result
end

#ord ⇒ Object 



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# File 'lib/ruco/core_ext/string.rb', line 33

def ord
  bytes.first
end

#surrounded_in?(*words) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ruco/core_ext/string.rb', line 38

def surrounded_in?(*words)
  first = words.first
  last = words.last
  slice(0,first.size) == first and slice(-last.size,last.size) == last
end

#tabs_to_spaces! ⇒ Object 



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# File 'lib/ruco/core_ext/string.rb', line 13

def tabs_to_spaces!
  gsub!("\t",' ' * Ruco::TAB_SIZE)
end