74 lines
2.7 KiB
Plaintext
74 lines
2.7 KiB
Plaintext
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literal := number-literal | string-literal | character-literal | symbol-literal
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string-literal := single-quote string-character* single-quote
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string-character := normal-character | (single-quote single-quote)
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single-quote := "'"
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normal-character := character-except-single-quote
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character-literal := "$" character
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character := normal-character | "'"
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symbol-literal := "#" symbol-body
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symbol-body := identifier | keyword+ | binary-selector | string
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unary-selector := identifier
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binary-selector := binary-selector-character+
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binary-selector-character := "+" | "/" | "\" | ...
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selector-argument := identifier
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identifier := alpha-char (alpha-char | digit-char)*
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keyword := identifier ":"
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class-definition := #class class-modifier? "{" class-body "}"
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class-modifier := "(" (#byte | #character | #word | #pointer)? ")"
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class-body := variable-definition* method-definition*
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variable-definition := (#dcl | #declare) variable-modifier? variable-list "."
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variable-modifier := "(" (#class | #classinst)? ")"
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variable-list := identifier*
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method-definition := #method method-modifier? method-actual-definition
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method-modifier := "(" (#class | #instance) ")"
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method-actual-definition := method-name "{" method-tempraries? method-primitive? method-statements* "}"
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method-name := unary-method-name | binary-method-name | keyword-method-name
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unary-method-name := unary-selector
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binary-method-name := binary-selector selector-argument
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keyword-method-name := (keyword selector-argument)+
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method-temporaries := "|" variable-list "|"
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method-primitive := "<" "primitive:" integer ">"
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method-statements := method-statement ("." | ("." method-statements))*
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method-statement := method-return-statement | method-expression
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method-return-statement := "^" method-expression
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method-expression := method-assignment-expression | basic-expression
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method-assignment-expression := identifier ":=" method-expression
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basic-expression := expression-primary (message-expression cascaded-message-expression)?
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expression-primary := identifier | literal | block-constructor | ( "(" method-expression ")" )
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----------------------------------------------------------
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message-expression := (unary-message-expression+ binary-message-expresson* keyword-message-expression?) |
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(binary-message-expression+ keyword-message-expression?) |
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keyword-message-expression
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cascaded-message-expression := (";" message-expression)*
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keyword-message-expression := (keyword keyword-argument)+
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keyword-argument := expression-primary unary-selector* binary-message-expression*
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binary-message-expression := binary-selector binary-argument
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binary-argument := expression-primary unary-selector*
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------------------------------------------------------------
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#include '....'.
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#class Test(Object)
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{
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}
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#main
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