Class: General::GArrayPlaceholder

Inherits:
GPartial
  • Object
show all
Defined in:
lib/gpartials/garrayplaceholder.rb

Overview

Created: 7 - 1 - 2016

Constant Summary collapse

REGEX =

Regular expression that matches array placeholders

/\A@\[#{NAME}\s*(#{OPERATION}\s*#{ARGUMENTS}?)?\]( +|(\r?\n)+)?(?<text>.*?)( +|(\r?\n)+)?@\[(?<delimeter>.+)?\]/m
DEFAULT_DELIMETER =

Default delimeter

"\n"

Instance Attribute Summary

Attributes inherited from GPartial

#name

Instance Method Summary collapse

Constructor Details

#initialize(match, defaults = {}) ⇒ GArrayPlaceholder

Initializes the GArrayPlaceholder with the given match

Parameter: match - the match data from the string being parsed Parameter: defaults - the hash of default data from the GTemplate



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# File 'lib/gpartials/garrayplaceholder.rb', line 40

def initialize match, defaults={}
	super
	@template = General::GTemplate.new match[:text]
	@delimeter = match[:delimeter] || DEFAULT_DELIMETER
	@operation = match[:operation]
	if match[:arguments]
		@arguments = match[:arguments].gsub(ARGUMENT).collect { |arg|
			ARGUMENT.match(arg)[:text]
		}
	else
		@arguments = []
	end
end

Instance Method Details

#apply(data) ⇒ Object

Returns the value of the array placeholder in the given data formatted by the given GTemplate and joined by the given delimeter

Parameter: data - the data being applied

Return: the value of the array placeholder in the given data formatted by the given GTemplate and joined by the given delimeter



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# File 'lib/gpartials/garrayplaceholder.rb', line 61

def apply(data)
	array = (@operation ? General::GOperations.send(@operation, data[@name], *@arguments) : data[@name])
	return @template.apply_all(array).join(@delimeter)
end

#regex(first = true) ⇒ Object

Throws TypeError

Parameter: first - true if the placeholder is the first of it’s kind

Raises:

  • (TypeError) 


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# File 'lib/gpartials/garrayplaceholder.rb', line 69

def regex(first=true); raise TypeError.new("Array Templates cannot be matched."); end

#string(first = true) ⇒ Object

Returns the string representation of the array placeholder

Parameter: first - true if the placeholder is the first of it’s kind

Return: the string representation of the array placeholder



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# File 'lib/gpartials/garrayplaceholder.rb', line 76

def string(first=true)
	str = "@[#{@name}"
	if @operation
		str += " -> #{@operation}"
		unless @arguments.empty?
			str += @arguments.collect{|s| " \"#{s}\""}.join
		end
	end
	return str + "] #{@template.to_s} @[#{@delimeter.inspect[1...-1]}]"
end