Midgard
d0699b3716
Require double space before tags and price, like in the plain text accounting format of ledger. This makes it easier to differentiate between prices mentioned in descriptions and the price for the dish.
89 lines
1.7 KiB
Text
89 lines
1.7 KiB
Text
# This is a Tatsu file.
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# Syntax is explained at
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# https://tatsu.readthedocs.io/en/stable/syntax.html
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@@grammar :: Hlds
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# Don't ignore any whitespace
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@@whitespace :: //
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@@eol_comments :: /[ \t]*#.*?$/
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@@keyword :: single_choice multi_choice dish preset only requires except
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start = [n] { @+:location } $ ;
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location_header =
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/={3,}/ n ~
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id:identifier ':' s name:string
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attributes:{ location_attribute }
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[ n ]
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/={3,}\n+/
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;
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location_attribute =
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n '\t' key:identifier s value:string
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;
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location = >location_header items:{ block } ;
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attributes =
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name:/[^\n#]*?(?= +-- | | *\n| *#)/
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[ s '--' ~ s description:/[^\n#]*?(?= | *\n| *#)/ ]
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[ / {2,}/ ~
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[ {[ s ] ('{' tags+:identifier '}')} / +|$/ ]
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[ price:price ]
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]
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;
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block =
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| dish_block
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| choice_block
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;
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dish_block =
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'dish' s ~
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id:identifier ':' s >attributes
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n
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choices:{ indent_choice_block }
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;
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choice_entry = id:identifier ':' s >attributes ;
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noindent_choice_entry = n '\t' >choice_entry ;
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indent_choice_entry = n '\t\t' >choice_entry ;
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# Toplevel choice definitions
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choice_block =
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id:identifier ':' s >attributes entries:{ noindent_choice_entry }
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n
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;
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# Appears in a dish block. One of:
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# 1) reference to toplevel choice definition
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# 2) inline choice declaration (as opposed to globally declared and referenced)
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indent_choice_block =
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'\t' type:choice_type s
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(
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| kind:`declaration` id:identifier ':' ~ s >attributes entries:{ indent_choice_entry }
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| kind:`reference` id:identifier [ s price:price ]
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)
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n
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;
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s = / +/ ;
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n = '\n' {{'\t'} '\n'} ;
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@name
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identifier = /[a-z0-9_-]+/ ;
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string = /[^\n#]+/ ;
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choice_type = 'single_choice' | 'multi_choice' ;
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int = /[0-9]+/ ;
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currency = '€' ;
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price = currency:currency s value_unit:int [ '.' value_cents:/[0-9]{,2}/ ] ;
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