78 lines
1.8 KiB
Scheme
78 lines
1.8 KiB
Scheme
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(define-language Lannotated
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(entry Defn)
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(terminals
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(record-constructor-descriptor (rcd))
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(record-type-descriptor (rtd))
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(exact-integer (tag level tag-mask))
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(datum (handler record-name pred all-pred all-term-pred
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accessor maker))
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(box (b))
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(syntax (stx))
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(identifier (id))
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(dots (dots))
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(null (null)))
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(Defn (def)
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(define-language id ref (maybe id0) rtd rcd tag-mask
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(term* ...) nt* ...))
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(Terminal (term)
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(id (id* ...) b (maybe handler) pred))
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(Nonterminal (nt)
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(id (id* ...) b rtd rcd tag pred all-pred all-term-pred
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prod* ...))
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(Production (prod)
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(production pattern (maybe pretty-prod) rtd tag pred maker field* ...)
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(terminal ref (maybe pretty-prod))
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(nonterminal ref (maybe pretty-prod)))
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(Pattern (pattern)
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id
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ref
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null
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(maybe ref)
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(pattern dots)
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(pattern0 dots pattern1 ... . pattern2)
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(pattern0 . pattern1))
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(PrettyProduction (pretty-prod)
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(procedure handler)
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(pretty pattern))
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(Field (field)
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(ref level accessor)
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(optional ref level accessor))
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(Reference (ref)
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(reference id0 id1 b)))
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(define-language Llanguage
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(entry Defn)
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(terminals
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(box (b))
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(syntax (stx))
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(identifier (id))
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(datum (handler))
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(dots (dots))
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(null (null)))
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(Defn (def)
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(define-language id cl* ...))
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(Clause (cl)
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(entry ref)
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(nongenerative-id id)
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(terminals term* ...)
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(id (id* ...) b prod* ...))
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(Terminal (term)
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simple-term
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(=> simple-term handler))
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(SimpleTerminal (simple-term)
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(id (id* ...) b))
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(Production (prod)
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pattern
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(=> pattern0 pattern1)
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(-> pattern handler))
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(Pattern (pattern)
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id
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ref
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null
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(maybe ref)
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(pattern dots)
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(pattern0 dots pattern1 ... . pattern2)
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(pattern0 . pattern1))
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(Reference (ref)
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(reference id0 id1 b)))
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