Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/katcp/util.rb

Overview

String add-ons for KATCP

Instance Method Summary collapse

Instance Method Details

#katcp_escape ⇒ Object

Escapes self into KATCP format and returns new String.



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# File 'lib/katcp/util.rb', line 24

def katcp_escape
  dup.katcp_escape!
end

#katcp_escape! ⇒ Object

In-place escapes self into KATCP format. Always returns self.



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# File 'lib/katcp/util.rb', line 8

def katcp_escape!
  empty? ? self[0..-1] = '\@' : self.gsub!(/[\\ \0\n\r\e\t]/) do |s|
    case s
    when "\\"; '\\\\'
    when " " ; '\_'
    when "\0"; '\0'
    when "\n"; '\n'
    when "\r"; '\r'
    when "\e"; '\e'
    when "\t"; '\t'
    end
  end
  self
end

#katcp_unescape ⇒ Object

Unescapes self from KATCP format and returns new String.



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# File 'lib/katcp/util.rb', line 45

def katcp_unescape
  dup.katcp_unescape!
end

#katcp_unescape! ⇒ Object

In-place unescapes self from KATCP format. Always returns self.



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# File 'lib/katcp/util.rb', line 29

def katcp_unescape!
  self == '\@' ? self[0..-1] = '' : self.gsub!(/\\[\\_0nret]/) do |s|
    case s
    when '\\\\'; "\\"
    when '\_'; " "
    when '\0'; "\0"
    when '\n'; "\n"
    when '\r'; "\r"
    when '\e'; "\e"
    when '\t'; "\t"
    end
  end
  self
end

#to_na(typecode, *args) ⇒ Object

call-seq:

to_na(typecode) -> NArray
to_na(typecode, size[, ...]) -> NArray

Convert String to NArray accoring to typecode.



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# File 'lib/katcp/util.rb', line 54

def to_na(typecode, *args)
  NArray.to_na(self, typecode, *args)
end