edits
parent
f21e0f7c20
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#lang brag
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program : load-expr output-file-expr compare-to-expr output-list-expr test-expr*
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load-expr : /"load" ID /","
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output-file-expr : /"output-file" ID /","
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compare-to-expr : /"compare-to" ID /","
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output-list-expr : /"output-list" column+ /";"
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/column : ID FORMAT-STRING
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@test-expr : step-expr+ /";"
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@step-expr : (set-expr | eval-expr | output-expr) [/","]
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set-expr : /"set" ID VAL
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eval-expr : /"eval"
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output-expr : /"output"
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#lang br
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(require "grammar.rkt" brag/support)
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(module reader br
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(require "parser.rkt" "tokenizer.rkt")
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(provide read-syntax)
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(define (read-syntax source-path port)
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(define-values (line col pos) (port-next-location port))
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(define port+newline (input-port-append #f port (open-input-string "\n")))
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(port-count-lines! port+newline)
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(set-port-next-location! port+newline line col pos)
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(strip-context
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(with-syntax ([PT (parse source-path (make-tokenizer port+newline))])
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#'(module hdl-mod hdl-tst-demo/expander
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PT)))))
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(module+ reader
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(provide read-syntax))
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(define tokenize
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(lexer-srcloc
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[(:or (from/to "/*" "*/")
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(from/to "//" #\newline)) (token 'COMMENT lexeme #:skip? #t)]
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[whitespace (token lexeme #:skip? #t)]
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[(:or "load" "output-list" "output-file" "compare-to" "set" "eval" "output" "," ";") lexeme]
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[(:seq "%" (:+ alphabetic numeric ".")) (token 'FORMAT-STRING lexeme)]
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[(:+ numeric) (token 'VAL (string->number lexeme))]
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[(:+ alphabetic numeric "-" ".") (token 'ID lexeme)]))
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(define (read-syntax src ip)
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(port-count-lines! ip)
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(strip-context
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(with-syntax ([PT (parse src (λ () (tokenize ip)))])
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#'(module hdl-mod hdl-tst-demo/expander
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PT))))
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#lang brag
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tst-program : tst-load-expr tst-output-file-expr tst-compare-to-expr tst-output-list-expr /";" tst-test-expr*
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tst-load-expr : /"load" ID /","
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tst-output-file-expr : /"output-file" ID /","
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tst-compare-to-expr : /"compare-to" ID /","
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tst-output-list-expr : /"output-list" tst-column [tst-column]+
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/tst-column : ID FORMAT-STRING
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@tst-test-expr : tst-step-expr+ /";"
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@tst-step-expr : (tst-set-expr | tst-eval-expr | tst-output-expr) [/","]
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tst-set-expr : /"set" ID VAL
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tst-eval-expr : /"eval"
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tst-output-expr : /"output"
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@ -1,17 +0,0 @@
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#lang br/quicklang
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(require brag/support)
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(provide make-tokenizer)
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(define hdl-test-lexer
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(lexer-srcloc
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[(:or (from/to "/*" "*/")
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(from/to "//" #\newline)) (token 'COMMENT lexeme #:skip? #t)]
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[whitespace (token lexeme #:skip? #t)]
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[(:or "load" "output-list" "output-file" "compare-to" "set" "eval" "output" "," ";") lexeme]
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[(:seq "%" (:+ alphabetic numeric ".")) (token 'FORMAT-STRING lexeme)]
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[(:+ numeric) (token 'VAL (string->number lexeme))]
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[(:+ alphabetic numeric "-" ".") (token 'ID lexeme)]))
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(define (make-tokenizer ip)
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(define (next-token) (hdl-test-lexer ip))
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next-token)
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