Doesn't work either
single quotes:
{publisher:'re($,' (Media|Publishing - ebooks Account|Press)$','')'}
calibre, version 2.61.0
ERROR: Invalid template: <p>The template {publisher:'re($,' (Media|Publishing - ebooks Account|Press)$','')'} is invalid:<br>Invalid conversion specification
double quotes:
{publisher:'re($," (Media|Publishing - ebooks Account|Press)$","")'}
calibre, version 2.61.0
ERROR: Invalid template: <p>The template {publisher:'re($," (Media|Publishing - ebooks Account|Press)$","")'} is invalid:<br>Invalid conversion specification
Up to two alternations work seem to work, Bizarre!:
{publisher:'re($," (Media|Publishing - ebooks Account)$","")'}