example1-grammar.p6

grammar Infobox::Grammar {
    token TOP { <infobox> .+ } # (#1)
    token infobox { '{{Infobox' <.ws> <name> \n <propertylist> '}}' }
    token name { <-[\n]>+ }
    token propertylist {
        [
            | <property> \n
            | \n
        ]+
    }
    token property {
        '|' <key=.key-content> '=' <value=.value-content-list>
    }
    
    token key-content { <-[=\n]>+ }
    token value-content-list {
        <value-content>+
    }
    token value-content { # (#6)
        [
            | <anchortext>
            | <weblink>
            | <rawtext>
            | <delimiter>
        ]+
    }
    token anchortext { '[[' <-[\n]>+? ']]' } # (#2)
    token weblink { '[' <-[\n]>+? ']' } # (#3)
    token rawtext { <-[\|\[\]\n、\,\<\>\}\{]>+ } # (#4)
    token delimiter { [ '、' | ',' ] } # (#5)
}