Catmandu::Fix::Condition::marc_has3pm

Test if a marc (sub)field exists

Usage

   # marc_has(MARC_PATH)
   unless marc_has('245')
        add_field('error.$append','no 245 value!')
   end

Evaluate the enclosing fixes only if the MARC (sub)field exists.

Evaluates to true when the MARC_PATH values exists, false otherwise.

4 releases since Debian 10 (Buster); the text changed 2 times.