Class: Expressive::TopLevel

Inherits:
Scope
  • Object
show all
Defined in:
lib/scope.rb

Instance Attribute Summary

Attributes inherited from Scope

#lookups

Instance Method Summary collapse

Methods inherited from Scope

#[], #[]=, #add_lookup_function, #add_lookup_table, #clear_lookup_tables, #define, #include?, #merge, #override_scope, #retrieve_scope, #syntax

Constructor Details

#initialize ⇒ TopLevel

Returns a new instance of TopLevel.



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# File 'lib/scope.rb', line 74

def initialize
  super

  syntax('set') do |scope, cells|
    scope[cells.first.text_value] = cells[1].eval(scope)
  end

  syntax('$append') do |scope, cells|
    scope[cells.first.text_value] = [] if scope[cells.first.text_value].nil?
    addition = cells[1].eval(scope)
    if addition.is_a?(Array)
      scope[cells.first.text_value] = scope[cells.first.text_value] | addition
    else
      scope[cells.first.text_value] << addition
    end
  end


  syntax('$lookup') {|scope, cells| perform_lookup(scope, cells)}
  syntax('lookup') {|scope, cells| perform_lookup(scope, cells)}

  syntax('post') do |scope, cells|
    perform_webhook(:post, scope, cells)
  end

  syntax('put') do |scope, cells|
    perform_webhook(:put, scope, cells)
  end

  syntax('get') do |scope, cells|
    perform_webhook(:get, scope, cells)
  end

  syntax('date') do |scope, cells|
    if cells.empty?
      Date.today.to_time.utc
    else
      date = cells.first.text_value.gsub(/[\)\(]/, '')
      values = date.split('/').map(&:to_i).reverse
      Date.new(values[0], values[1], values[2]).to_time.utc
    end
  end

  define('$id') {|*args| args.first.id }
  define('+') {|a,b| a.to_f + b.to_f }
  define('-') {|a,b| a.to_f - b.to_f }
  define('*') {|a,b| a.to_f * b.to_f }
  define('/') {|a,b| a.to_f / b.to_f }
  define('=') {|a,b| a == b }
  define('>') {|a,b| a.to_f > b.to_f }
  define('<') {|a,b| a.to_f < b.to_f }
  define('>=') {|a,b| a.to_f >= b.to_f }
  define('<=') {|a,b| a.to_f <= b.to_f }
  define('and') {|a,b| !!a && !!b }
  define('or') {|a,b| !!a || !!b }
  define('sum') {|*args| args.flatten.map(&:to_f).reduce(:+) || 0 }
  define('$sub') {|*args| result = args.flatten.map(&:to_f).reduce(:-) || 0 }
  define('if') {|*args| args.compact!; args[0] ? args[1] : args[2] }
  define('$days_ago'){|*args| Time.now - args[0].to_i * 86400 }
  define('$hours_ago'){|*args| Time.now - args[0].to_i * 3600 }
  define('$minutes_ago'){|*args| Time.now - args[0].to_i * 60 }
  define('$head'){|*args| args.flatten.first }
  define('$tail'){|*args| args.flatten[1..-1] }
  define('$reverse'){|*args| args.flatten.reverse }

  define('$round'){|*args| perform_round(args) }
  define('round'){|*args| perform_round(args) }

end

Instance Method Details

#to_hash ⇒ Object 



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# File 'lib/scope.rb', line 144

def to_hash
  h = self.retrieve_scope.dup
  h.delete_if{|k, v| v.kind_of?(Expressive::Function) || v.kind_of?(Expressive::ExtendedValue)}
end