Class: Pursuit::SearchTermParser

Inherits:
Object
  • Object
show all
Defined in:
lib/pursuit/search_term_parser.rb

Defined Under Namespace

Classes: KeyedTerm

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(query, keys: []) ⇒ SearchTermParser

Create a new search term parser by parsing the specified query into an ‘unkeyed term’ and ‘keyed terms’.

Parameters:

  • query (String) —

    The query to parse.

  • keys (Array<String>) (defaults to: []) —

    The keys which are permitted for use as keyed terms.



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# File 'lib/pursuit/search_term_parser.rb', line 22

def initialize(query, keys: [])
  @keyed_terms = []
  @unkeyed_term = query.gsub(/(\s+)?(\w+)(==|\*=|!=|!\*=|<=|>=|<|>)("([^"]+)?"|'([^']+)?'|[^\s]+)(\s+)?/) do |term|
    key = Regexp.last_match(2)
    next term unless keys.include?(key)

    operator = Regexp.last_match(3)
    value = Regexp.last_match(4)
    value = value[1..-2] if value =~ /^(".*"|'.*')$/

    @keyed_terms << KeyedTerm.new(key, operator, value)

    # Both the starting and ending spaces surrounding the keyed term can be removed, so in this case we'll need to
    # replace with a single space to ensure the unkeyed term's words are separated correctly.
    if term =~ /^\s.*\s$/
      ' '
    else
      ''
    end
  end

  @unkeyed_term = @unkeyed_term.strip
end

Instance Attribute Details

#keyed_terms ⇒ Array<Pursuit::SearchTermParser::KeyedTerm> (readonly)

Returns The keys which are permitted for use as keyed terms.

Returns:



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# File 'lib/pursuit/search_term_parser.rb', line 11

def keyed_terms
  @keyed_terms
end

#unkeyed_term ⇒ String (readonly)

Returns The unkeyed term.

Returns:

  • (String) —

    The unkeyed term.



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# File 'lib/pursuit/search_term_parser.rb', line 15

def unkeyed_term
  @unkeyed_term
end