anchor.diff:  
   [discrete]
   [[eql-syntax-pattern-comparison-keywords]]
  -=== Pattern comparison keywords
  +==== Pattern comparison keywords
   
   [source,eql]
   ----
  
positive.code: 
  [discrete]
  [[eql-syntax-logical-operators]]
  === Logical operators
  
  [source,eql]
  ----
  
negative.code: 
  [discrete]
  [[eql-syntax-escape-characters]]
  ==== Escape characters in a string
  
  When used within a string, special characters, such as a carriage return or
  double quote (`"`), must be escaped with a preceding backslash (`\`).
  