17 lines
424 B
Text
17 lines
424 B
Text
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#lang brag
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u-program: [/NEWLINE+] (u-expr [/NEWLINE+])*
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u-expr:
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; u-series ; string series
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| u-atom
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| u-converting-num
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| u-sexp
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u-sexp:
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/L_PAREN u-expr (/SEPERATOR u-expr)* /R_PAREN
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u-series: (u-atom | u-sexp)+
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~~~u-converting-num: /NUM_CONVERTER (u-id | u-number)
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~~~u-atom: u-id | u-string | u-number | (NEWLINE+)
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~~~u-number: INTEGER | DECIMAL
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u-id: ID
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@u-string: u-char+
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@u-char: CHAR | " "
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