Class: Pursuit::PredicateParser

Inherits:
Parslet::Parser
  • Object
show all
Defined in:
lib/pursuit/predicate_parser.rb

Overview

Parser for predicate queries.

Predicate queries take an attribute, an operator (such as the equal sign), and a value to compare with.

For example, to search for records where the ‘first_name` attribute is equal to “John” and the `last_name` attribute contains either “Doe” or “Smith”, you might use:

> “first_name = John & (last_name ~ Doe | last_name ~ Smith)”

Instance Method Summary collapse

Instance Method Details

#stri(string) ⇒ Object

Helpers



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# File 'lib/pursuit/predicate_parser.rb', line 174

def stri(string)
  string
    .each_char
    .map { |c| match("[#{c.upcase}#{c.downcase}]") }
    .reduce(:>>)
end