Template:Cat in use

{{#ifexpr: {{#ifexist:Category:{{{1}}}|1|0}} {{#switch:{{{2|}}}

|+|or||#default = +

|*|and|&|&& = *

|^|xor = !=

}} {{#ifexpr:{{PAGESINCATEGORY:{{{1}}}|R}}|1|0}} | 1 | 0 }}

{{documentation}}