Module: TextDataTools::Named

Defined in:

lib/text-data-tools.rb

Overview

Tools for dealing with files where named variables are assigned in the form

  name sep base
E.g.
  height = 4.0

Defined Under Namespace

Classes: DataFile

Class Method Summary

• .get_variable_value(filename, name, sep = '=') ⇒ Object

  Extract a variable value from the given file where the variable is defined in this form: name sep value E.g.

Class Method Details

.get_variable_value(filename, name, sep = '=') ⇒ Object

Extract a variable value from the given file where the variable is defined in this form:

name sep value

E.g. heat = 4.0

Both name and sep can be either regexps or strings

Raises:

• (NotFoundError)

# File 'lib/text-data-tools.rb', line 211

def self.get_variable_value(filename, name, sep='=')
	value = nil
	File.open(filename) do |file|
		while line= file.gets
			next unless line =~ Regexp.new("#{name.kind_of?(Regexp) ? name : Regexp.escape(name) }\\s*#{sep.kind_of?(Regexp) ? sep : Regexp.escape(sep) }\\s*(?<value>.*)")
			value = $~[:value]
				
		end
	end
	raise NotFoundError.new("Can't find #{name} in #{filename}") unless value
	value
end