mirror of
https://github.com/false-schemers/skint.git
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74 lines
3.2 KiB
Text
74 lines
3.2 KiB
Text
;---------------------------------------------------------------------------------------------
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; Skint k.sf precursor compiler (k.sf => k.c)
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;---------------------------------------------------------------------------------------------
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(import (only (skint hidden)
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list2? list3? path-relative? path-directory path-strip-directory
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path-strip-extension file-resolve-relative-to-base-path %system))
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(define (list4? x) (and (pair? x) (list3? (cdr x))))
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(define *prelude* "
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#include \"n.h\"
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#include \"i.h\"
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#define MODULE module_k
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#define LOAD()
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")
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(define (convert iport oport ifbase ifname)
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(let loop ([l (read-line iport)] [in-header? #t])
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(cond [(eof-object? l)]
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[(and in-header? (string=? l "/* cx globals */"))
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(display "/* " oport) (display ifbase oport)
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(display ".c -- generated via skint ksf2c.ssc " oport)
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(display ifname oport)
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(display " */" oport) (newline oport)
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(display *prelude* oport)
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(display l oport) (newline oport)
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(loop (read-line iport) #f)]
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[in-header?
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(loop (read-line iport) #t)]
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[(string=? l "static size_t cxg_hsize = 0; ") ; sfc puts 1 trailing space!
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(display "size_t cxg_hsize = 0;" oport) (newline oport)
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(loop (read-line iport) #f)]
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[(string=? l "static int cxg_gccount = 0, cxg_bumpcount = 0;")
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(display "int cxg_gccount = 0, cxg_bumpcount = 0;" oport) (newline oport)
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(loop (read-line iport) #f)]
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[(string=? l " /* fprintf(stderr, \"%d collections, %d reallocs\\n\", cxg_gccount, cxg_bumpcount); */")
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(loop (read-line iport) #f)]
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[else
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(display l oport) (newline oport)
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(loop (read-line iport) #f)])))
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(define (process-file sfcpath ifpath . ?ofpath)
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(define cwd (current-directory))
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(define sfcp (file-resolve-relative-to-base-path sfcpath cwd))
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(define ifdir (path-directory ifpath))
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(define ifname (path-strip-directory ifpath))
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(define ifbase (path-strip-extension ifname))
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(define tfpath (string-append ifdir ifbase ".c"))
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(define sfccmd (format #f "~a -v ~a" sfcp ifname))
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(when (file-exists? tfpath) (error "itermediate file already exists" tfpath))
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(format #t "; running ~a~%" sfccmd)
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(parameterize ([current-directory ifdir])
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(define res (begin (format #t "; cd is '~a'~%" (current-directory)) (%system sfccmd)))
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(unless (eqv? res 0) (error "sfc failed!")))
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(unless (file-exists? tfpath) (error "itermediate file is not found" tfpath))
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(format #t "; converting intermediate file ~a~%" tfpath)
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(let ([iport (open-input-file tfpath)]
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[oport (if (null? ?ofpath) (current-output-port) (open-output-file (car ?ofpath)))])
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(convert iport oport ifbase ifname)
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(close-input-port iport)
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(unless (null? ?ofpath) (close-output-port oport)))
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(format #t "; deleting intermediate file ~a~%" tfpath)
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(delete-file tfpath))
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(define (main args)
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(cond [(list3? args) (process-file (cadr args) (caddr args))]
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[(list4? args) (process-file (cadr args) (caddr args) (cadddr args))]
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[else (error "usage: scint ksf2c.ssc SFCPATH INFILE [OUTFILE]" args)]))
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; this is not a real #! script, so call main manually
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(main (command-line))
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