Module: StringHelper

Included in:
String
Defined in:
lib/rubyhelper/string.rb

Instance Method Summary collapse

Instance Method Details

#^(k) ⇒ String

CRYXOR (one time pad dirt application)

Parameters:

Returns:

Raises:

  • (ArgumentError) —

    if key is not a valid String



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# File 'lib/rubyhelper/string.rb', line 118

def ^(k)
  raise ArgumentError, "The key MUST BE a String" unless k.is_a? String
  str = ""
  self.size.times do |i|
    str << (self[i].ord ^ k[i % k.size].ord).chr
  end
  return str
end

#false? ⇒ true or false

indicate if the string is “false”

Returns:

  • (true or false) 


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# File 'lib/rubyhelper/string.rb', line 213

def false?
  return (self == "false")
end

#p(replace = '') ⇒ String

Remove accents from the string, and replace it by the same letter in ASCII Note : it doesn’t remove non ASCII characters

Parameters:

  • replace (String) (defaults to: '') —

    replace by character default case

Returns:

Raises:

  • (ArgumentError) —

    if replace is not a String (via #utf8)



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# File 'lib/rubyhelper/string.rb', line 53

def p(replace='')
  begin
    return self.tr("ÀÁÂÃÄÅàáâãäåĀāĂ㥹ÇçĆćĈĉĊċČčÐðĎďĐđÈÉÊËèéêëĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħÌÍÎÏìíîïĨĩĪīĬĭĮįİıĴĵĶķĸĹĺĻļĽľĿŀŁłÑñŃńŅņŇňʼnŊŋÒÓÔÕÖØòóôõöøŌōŎŏŐőŔŕŖŗŘřŚśŜŝŞşŠšſŢţŤťŦŧÙÚÛÜùúûüŨũŪūŬŭŮůŰűŲųŴŵÝýÿŶŷŸŹźŻżŽž",
                   "AAAAAAaaaaaaAaAaAaCcCcCcCcCcDdDdDdEEEEeeeeEeEeEeEeEeGgGgGgGgHhHhIIIIiiiiIiIiIiIiIiJjKkkLlLlLlLlLlNnNnNnNnnNnOOOOOOooooooOoOoOoRrRrRrSsSsSsSssTtTtTtUUUUuuuuUuUuUuUuUuUuWwYyyYyYZzZzZz")
  rescue Encoding::CompatibilityError => e
    return self.utf8(replace)
  end
end

#p!(replace = '') ⇒ String

see #p

Returns:

Raises:

  • (ArgumentError) —

    if replace is not a String (via #p)



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# File 'lib/rubyhelper/string.rb', line 66

def p!(replace='')
  return self.replace(self.p(replace))
end

#scapitalize ⇒ String

Capitalize a sequence (each word)

Returns:

  • (String) —

    capitalized_string



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# File 'lib/rubyhelper/string.rb', line 220

def scapitalize
  return self.split.map(&:capitalize).join(' ')
end

#scapitalize! ⇒ String

see #scapitalize

Returns:



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# File 'lib/rubyhelper/string.rb', line 227

def scapitalize!
  return self.replace(self.scapitalize)
end

#sha2 ⇒ String

SHA2 shortcuts see Digest::SHA2#hexdigest

Returns:

  • (String) —

    the sha2 hash value of self



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# File 'lib/rubyhelper/string.rb', line 131

def sha2
  Digest::SHA2.hexdigest(self)
end

#sha2! ⇒ String

see #sha2

Returns:



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# File 'lib/rubyhelper/string.rb', line 138

def sha2!
  return self.replace(self.sha2)
end

#splity(sep = "\n") ⇒ Array

by [email protected] split th string and only keep the non empty striped values

Parameters:

  • sep (String) (defaults to: "\n") —

    separator

  • sep (Regexp) (defaults to: "\n") —

    separator

Returns:

Raises:

  • (ArgumentError) 


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# File 'lib/rubyhelper/string.rb', line 237

def splity(sep = "\n")
  raise ArgumentError, "sep must be a string or a regex" unless sep.is_a? String or sep.is_a? Regexp
  return self.split(sep).map{|e| ((e.strip.empty?) ? (nil) : (e.strip))}.compact
end

#splity!(sep) ⇒ Array

see #splity

Parameters:

Returns:



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# File 'lib/rubyhelper/string.rb', line 246

def splity!(sep)
  return self.replace(self.splity(sep))
end

#static(n, char = ' ', place = :right) ⇒ String

Get a str with a static length. If the str size > n, reduce the str (keep str from the (param place) ) You should check the test files for examples if the (param place) is not valid, the function will just return self Note : #center #ljust and #rjust do a similar work.

Parameters:

  • n (Integer) —

    number of char

  • char (String) (defaults to: ' ') —

    char to replace if the initial str is too short

  • place (Symbol) (defaults to: :right) —

    :begin/:front/:left :end/:back/:rigth :center/:middle

Returns:

Raises:

  • (ArgumentError) —

    if n in not an integer/char a String



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# File 'lib/rubyhelper/string.rb', line 153

def static(n, char =' ', place = :right)
  raise ArgumentError, 'char is not an Char (String)' unless char.is_a? String
  raise ArgumentError, 'n is not an Integer' unless n.is_a? Integer
  char = char[0] || " " # get only the first char or a space if empty
  if size < n
    case place
    when :begin, :front, :left
      return char * (n - size).to_i + self
    when :center, :middle
      return char * ((n - size) / 2) + self + char * ((n - size) / 2 + (n - size) % 2)
    when :end, :back, :right
      return self + char * (n - size).to_i
    else
      return self
    end
  else
    case place
    when :begin, :front, :left
      return self[0...n]
    when :center, :middle
      return self[((-(size() +n - 1)) / 2)..((-(size() -n + 1)) / 2)]
    when :end, :back, :right
      return self[(-n)..(-1)]
    else
      return self
   end
  end
end

#static!(n, char = ' ') ⇒ Object

see #static

Raises:



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# File 'lib/rubyhelper/string.rb', line 185

def static!(n, char=' ')
  return self.replace(self.static(n, char))
end

#to_ascii(replace = '', case_mod = nil) ⇒ String

Return a simple ascii string. Invalid characters will be replaced by “replace” (argument) Accents are removed first and replaced by the equivalent ASCII letter (example : ‘é’ => ‘e’) no raise error on #p because of default doesn’t let it happen ;)

Parameters:

  • replace (String) (defaults to: '') —

    a caracter to replace non-ascii chars

  • case_mod (Symbol) (defaults to: nil) —

    :upcase, :capitalize or :downcase or nil if no case change

Returns:

Raises:

  • (ArgumentError) —

    if replace is not a String char



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# File 'lib/rubyhelper/string.rb', line 104

def to_ascii(replace='', case_mod = nil)
  raise ArgumentError, "Argument replace is not a String char" unless replace.is_a? String
  s = String.new
  self.p.each_char do |c|
    s += ((c.ord > 255) ? (replace) : (c))
  end
  return s.to_case(case_mod)
end

#to_case(case_mod = :downcase) ⇒ String

permit to do upcase/downcase/capitalize easier with a simple param

Parameters:

  • case_mod (Symbol) (defaults to: :downcase) —

    :upcase, :capitalize, :classic or :downcase or nil if no case change. The capitalize correspond to #scapitalize and classic to #capitalize

Returns:

  • (String) —

    self changed to downcase, upcase, capitalize or classic_capitalize



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# File 'lib/rubyhelper/string.rb', line 74

def to_case(case_mod = :downcase)
  case case_mod
  when :upcase
    return self.upcase
  when :downcase
    return self.downcase
  when :capitalize
    return self.scapitalize
  when :classic
    return self.capitalize
  else
    return self
  end
end

#to_case!(case_mod = :downcase) ⇒ String

see #to_case

Returns:



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# File 'lib/rubyhelper/string.rb', line 92

def to_case!(case_mod = :downcase)
  return self.replace(self.to_case(case_mod))
end

#to_plain(case_mod = nil, replace = '') ⇒ String

UTF-8 encoding and replace invalid chars. Remove accents from the string (convert to ASCII chars !) And then, change the case as first argument if not nil

Parameters:

  • case_mod (Symbol) (defaults to: nil) —

    :upcase, :capitalize or :downcase or nil for no case change

  • replace (String) (defaults to: '') —

    if a char is not utf8 valid, character will replace it

Returns:

  • (String) —

    self changed without accents and non-utf-8 chars

Raises:

  • (ArgumentError) —

    if replace is not a String (via #p and #utf8)



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# File 'lib/rubyhelper/string.rb', line 35

def to_plain(case_mod = nil, replace='')
  return self.p(replace).utf8(replace).to_case(case_mod)
end

#to_plain!(case_mod = nil, replace = '') ⇒ String

see #to_plain

Returns:

Raises:

  • (ArgumentError) —

    if replace is not a String (via #to_plain)



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# File 'lib/rubyhelper/string.rb', line 43

def to_plain!(case_mod = nil, replace='')
  return self.replace(self.to_plain(case_mod, replace))
end

#to_t ⇒ true or false or nil

Returns true or false if the string if “true” or “false”. else nil

Returns:

  • (true or false or nil) 


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# File 'lib/rubyhelper/string.rb', line 192

def to_t
  case self
  when "true"
    return true
  when "false"
    return false
  else
    return nil
  end
end

#true? ⇒ true or false

indicate if the string is “true”

Returns:

  • (true or false) 


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# File 'lib/rubyhelper/string.rb', line 206

def true?
  return (self == "true")
end

#utf8(replace = '') ⇒ String

TODO : raise error on invalid utf-8 param replace Force utf-8 encoding (shortcut ;) ! )

Parameters:

  • replace (String) (defaults to: '') —

    replace invalids chars by other chas

Returns:

Raises:

  • (ArgumentError) —

    if replace is not a String



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# File 'lib/rubyhelper/string.rb', line 14

def utf8 replace=''
  raise ArgumentError, 'replace is not a valid char (String)' unless replace.is_a? String
  return self.encode('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: replace)
end

#utf8! ⇒ String

see #utf8

Returns:

  • (String) —

    utf-8 valid string

Raises:

  • (ArgumentError) —

    if replace is not a String (via #utf8)



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# File 'lib/rubyhelper/string.rb', line 23

def utf8!
  return self.replace(self.utf8)
end