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* snarf-check-and-output-texi: rewrite.
This commit is contained in:
Michael Livshin
parent
ac13d9d210
commit
58e17e276b
2 changed files with 198 additions and 71 deletions
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@ -1,3 +1,7 @@
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2001-06-25 Michael Livshin <mlivshin@bigfoot.com>
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* snarf-check-and-output-texi: rewrite.
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2001-05-31 Michael Livshin <mlivshin@bigfoot.com>
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* snarf-check-and-output-texi: new file.
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@ -27,8 +27,99 @@ exec ${GUILE-guile} -c "(apply $main (cdr (command-line)))" "$@"
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;;; Code:
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(define-module (scripts snarf-check-and-output-texi)
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:use-module (ice-9 streams)
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:use-module (ice-9 match)
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:export (snarf-check-and-output-texi))
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;;; why aren't these in some module?
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(define-macro (when cond . body)
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`(if ,cond (begin ,@body)))
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(define-macro (unless cond . body)
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`(if (not ,cond) (begin ,@body)))
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(define (snarf-check-and-output-texi)
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(process-stream (current-input-port)))
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(define (process-stream port)
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(let loop ((input (stream-map (match-lambda
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(('id . s)
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(cons 'id (string->symbol s)))
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(('int_dec . s)
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(cons 'int (string->number s)))
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(('int_oct . s)
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(cons 'int (string->number s 8)))
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(('int_hex . s)
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(cons 'int (string->number s 16)))
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((and x (? symbol?))
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(cons x x))
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((and x (? string?))
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(cons 'string x))
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(x x))
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(make-stream (lambda (s)
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(let loop ((s s))
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(cond
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((stream-null? s) #t)
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((eq? 'eol (stream-car s))
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(loop (stream-cdr s)))
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(else (cons (stream-car s) (stream-cdr s))))))
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(port->stream port read)))))
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(unless (stream-null? input)
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(let ((token (stream-car input)))
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(if (eq? (car token) 'snarf_cookie)
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(dispatch-top-cookie (stream-cdr input)
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loop)
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(loop (stream-cdr input)))))))
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(define (dispatch-top-cookie input cont)
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(when (stream-null? input)
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(error 'syntax "premature end of file"))
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(let ((token (stream-car input)))
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(cond
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((eq? (car token) 'brace_open)
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(consume-multiline (stream-cdr input)
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cont))
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(else
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(consume-upto-cookie process-singleline
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input
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cont)))))
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(define (consume-upto-cookie process input cont)
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(let loop ((acc '()) (input input))
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(when (stream-null? input)
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(error 'syntax "premature end of file in directive context"))
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(let ((token (stream-car input)))
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(cond
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((eq? (car token) 'snarf_cookie)
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(process (reverse! acc))
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(cont (stream-cdr input)))
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(else (loop (cons token acc) (stream-cdr input)))))))
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(define (consume-multiline input cont)
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(begin-multiline)
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(let loop ((input input))
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(when (stream-null? input)
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(error 'syntax "premature end of file in multiline context"))
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(let ((token (stream-car input)))
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(cond
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((eq? (car token) 'brace_close)
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(end-multiline)
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(cont (stream-cdr input)))
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(else (consume-upto-cookie process-multiline-directive
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input
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loop))))))
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(define *file* #f)
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(define *line* #f)
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(define *function-name* #f)
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@ -37,62 +128,16 @@ exec ${GUILE-guile} -c "(apply $main (cdr (command-line)))" "$@"
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(define *sig* #f)
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(define *docstring* #f)
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(define (doc-block args)
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(let loop ((args args))
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(if (not (null? args))
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(let ((arg (car args)))
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(if (not (null? arg))
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(begin
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(case (car arg)
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((fname)
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(set! *function-name* (cdr arg)))
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((type)
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(set! *snarf-type* (cdr arg)))
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((location)
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(set! *file* (cadr arg))
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(set! *line* (cddr arg)))
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((arglist)
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(set! *args* (cdr arg)))
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((argsig)
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(set! *sig* (cdr arg)))
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((docstring)
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(set! *docstring* (cdr arg)))
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(else
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(error (format #f "unknown doc attribute: ~A" (car arg)))))))
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(loop (cdr args)))))
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(output-doc-block))
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(define (doc-check arg)
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(if (not (null? arg))
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(define (begin-multiline)
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(set! *file* #f)
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(set! *line* #f)
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(set! *function-name* #f)
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(set! *snarf-type* #f)
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(set! *args* #f)
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(set! *sig* #f)
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(set! *docstring* #f))
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(case (car arg)
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((argpos)
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(let* ((name (cadr arg))
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(pos (caddr arg))
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(line (cadddr arg))
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(idx (list-index *args* name)))
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(cond
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((not idx))
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((not (number? pos)))
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((= 0 pos))
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((not (= (+ idx 1) pos))
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(display (format #f "~A:~A: wrong position for argument \"~A\": ~A (should be ~A)\n"
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*file* line name pos (+ idx 1))
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(current-error-port))))))
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(else
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(error (format #f "unknown check: ~A" (car arg)))))))
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(define (output-doc-block)
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(define (end-multiline)
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(let* ((req (car *sig*))
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(opt (cadr *sig*))
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(var (caddr *sig*))
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@ -137,21 +182,99 @@ exec ${GUILE-guile} -c "(apply $main (cdr (command-line)))" "$@"
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(loop (cdr strings)))))
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(display "\n@end deffn\n"))))
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(define (snarf-check-and-output-texi)
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(let loop ((form (read)))
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(if (not (eof-object? form))
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(begin
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(if (not (null? form))
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(case (car form)
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((doc-block)
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(doc-block (cdr form)))
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((doc-check)
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(doc-check (cdr form)))
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(else (error (format #f "unknown doc command: ~A" (car form))))))
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(loop (read))))))
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(define (texi-quote s)
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(let rec ((i 0))
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(if (= i (string-length s))
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""
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(string-append (let ((ss (substring s i (+ i 1))))
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(if (string=? ss "@")
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"@@"
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ss))
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(rec (+ i 1))))))
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(define (process-multiline-directive l)
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(define do-args
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(match-lambda
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(('(paren_close . paren_close))
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'())
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(('(comma . comma) rest ...)
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(do-args rest))
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(('(id . SCM) ('id . name) rest ...)
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(cons name (do-args rest)))
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(x (error (format #f "invalid argument syntax: ~A" (map cdr x))))))
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(define do-arglist
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(match-lambda
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(('(paren_open . paren_open) '(id . void) '(paren_close . paren_close))
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'())
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(('(paren_open . paren_open) rest ...)
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(do-args rest))
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(x (error (format #f "invalid arglist syntax: ~A" (map cdr x))))))
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(define do-command
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(match-lambda
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(('fname ('string . name))
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(set! *function-name* (texi-quote name)))
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(('type ('id . type))
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(set! *snarf-type* type))
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(('type ('int . num))
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(set! *snarf-type* num))
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(('location ('string . file) ('int . line))
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(set! *file* file)
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(set! *line* line))
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(('arglist rest ...)
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(set! *args* (do-arglist rest)))
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(('argsig ('int . req) ('int . opt) ('int . var))
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(set! *sig* (list req opt var)))
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(x (error (format #f "unknown doc attribute: ~A" x)))))
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(define do-directive
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(match-lambda
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((('id . command) rest ...)
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(do-command (cons command rest)))
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((('string . string) ...)
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(set! *docstring* string))
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(x (error (format #f "unknown doc attribute syntax: ~A" x)))))
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(do-directive l))
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(define (process-singleline l)
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(define do-argpos
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(match-lambda
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((('id . name) ('int . pos) ('int . line))
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(let ((idx (list-index *args* name)))
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(when idx
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(unless (= (+ idx 1) pos)
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(display (format #f "~A:~A: wrong position for argument ~A: ~A (should be ~A)\n"
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*file* line name pos (+ idx 1)))))))
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(x #f)))
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(define do-command
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(match-lambda
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(('(id . argpos) rest ...)
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(do-argpos rest))
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(x (error (format #f "unknown check: ~A" x)))))
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(when *function-name*
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(do-command l)))
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(define main snarf-check-and-output-texi)
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