Class: BEL::Completion::MatchNamespacePrefixRule

Inherits:
Object
  • Object
show all
Includes:
Rule
Defined in:
lib/bel/completion_rule.rb

Overview

MatchNamespacePrefixRule defines a namespace completion rule. TODO Namespces should be passed as state, not hardcoded.

Instance Method Summary collapse

Methods included from Rule

#apply

Instance Method Details

#_apply(token_list, active_token, active_token_index, options = {}) ⇒ Object 



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# File 'lib/bel/completion_rule.rb', line 151

def _apply(token_list, active_token, active_token_index, options = {})
  if token_list.empty? or active_token.type == :O_PAREN
    return SORTED_NAMESPACES.map { |ns_prefix|
      map_namespace_prefix(ns_prefix)
    }
  end

  # first token is always function
  return [] if active_token == token_list[0]

  if active_token.type == :IDENT
    value = active_token.value.downcase
    return SORTED_NAMESPACES.find_all { |x|
      x.downcase.include? value
    }.map { |ns_prefix|
      map_namespace_prefix(ns_prefix)
    }
  end

  return EMPTY_MATCH
end