example2-grammar.p6

grammar Infobox::Grammar {
    token TOP { <infobox> .+ }
    token infobox { '{{Infobox' <.ws> <name> \n <propertylist> '}}' }
    token name { <-[\n]>+ }
    token propertylist {
        [
            | <property> \n
            | \n
        ]+
    }
    token property {
        [
            | '|' <key=.key-content> '=' <value=.value-content-list>
            | '|' <key=.key-content> '=' # (#4)
        ]
    }
    
    token key-content { <-[=\n]>+ }
    token value-content-list {
        [
            | <value-content> <br> # (#6)
            | <value-content>
            | <br>
        ]+
    }
    token value-content-list-nl { # (#1)
        [
            | <value-content> <br> # (#7)
            | <value-content>
            | <br>
        ]+ % \n
    }
    token value-content {
        [
            | <anchortext>
            | <weblink>
            | <rawtext>
            | <template>
            | <delimiter>
            | <sup>
        ]+
    }
    token br { # (#5)
        [
            | '<br />'
            | '<br/>'
            | '<br>'
        ]
    }
    token template { 
        [
            | '{{' <-[\n]>+? '}}'
            | '{{nowrap' '|' <value-content-list> '}}' # (#3)
            | '{{Plainlist' '|' \n <value-content-list-nl> \n '}}' # (#2)
        ]
    }
    token anchortext { '[[' <-[\n]>+? ']]' }
    token weblink { '[' <-[\n]>+? ']' }
    token rawtext { <-[\|\[\]\n、\,\<\>\}\{]>+ }
    token delimiter { [ '、' | ',' | '&nbsp;' ] }
    token sup { '<sup>' <-[\n]>+? '</sup>'}
}