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added untabify

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svn: r2172
This commit is contained in:
Eli Barzilay 2006-02-08 17:14:21 +00:00
parent bf04a78095
commit 3e7e50d5f8
2 changed files with 28 additions and 3 deletions
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5
collects/handin-server/doc.txt
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@ -723,6 +723,11 @@ Keywords for configuring `check:':
printouts and grading, and is in a subdirectory so students will not
see it on the status web server. Defaults to #t.
* :untabify? -- if true, then tabs are converted to spaces, assuming a
standard tab width of 8 places. This is needed for a correct
computation of line lengths, but note that DrScheme does not insert
tabs in Scheme mode. Defaults to #t.
* :textualize? -- if true, then all submissions are converted to text,
trying to convert objects like comment boxes and test cases to some
form of text. Defaults to #f, meaning that an exception is raised

26
collects/handin-server/extra-utils.ss
View File

@ -124,7 +124,19 @@
(send x get-text 0 (send x get-count)))]
[else x])))
(define (submission->string submission maxwidth textualize?)
(define (untabify str)
(let loop ([idx 0] [pos 0] [strs '()])
(let ([tab (regexp-match-positions #rx"\t" str idx)])
(if tab
(let* ([pos (+ pos (- (caar tab) idx))]
[newpos (* (add1 (quotient pos 8)) 8)])
(loop (cdar tab) newpos
(list* (make-bytes (- newpos pos) 32)
(subbytes str idx (caar tab))
strs)))
(apply bytes-append (reverse! (cons (subbytes str idx) strs)))))))
(define (submission->string submission maxwidth textualize? untabify?)
(let-values ([(defs inters) (unpack-submission submission)])
(parameterize ([current-output-port (open-output-string)]
[current-input-port
@ -141,7 +153,10 @@
"have non-textual items"))])
(read-bytes-line)))])
(unless (eof-object? line)
(let ([line (regexp-replace #rx#"[ \t]+$" line #"")])
(let* ([line (regexp-replace #rx#"[ \t]+$" line #"")]
[line (if (and untabify?
(regexp-match-positions #rx"\t" line))
(untabify line) line)])
(when maxwidth
(verify-line-length line (and (not textualize?) n) maxwidth))
(display line) (newline) (loop (add1 n))))))
@ -245,6 +260,7 @@
[language* (get ':language #'#f)]
[teachpacks* (get ':teachpacks #''())]
[create-text?* (get ':create-text? #'#t)]
[untabify?* (get ':untabify? #'#t)]
[textualize?* (get ':textualize? #'#f)]
[maxwidth* (get ':maxwidth #'79)]
[markup-prefix* (get ':markup-prefix #'#f)]
@ -287,6 +303,7 @@
[language language*]
[teachpacks teachpacks*]
[create-text? create-text?*]
[untabify? untabify?*]
[textualize? textualize?*]
[maxwidth maxwidth*]
[markup-prefix markup-prefix*]
@ -351,7 +368,8 @@
'truncate))
(define submission-text
(and create-text?
(submission->string submission maxwidth textualize?)))
(submission->string
submission maxwidth textualize? untabify?)))
(when create-text?
(make-directory "grading")
(when (regexp-match prefix-re submission-text)
@ -408,6 +426,8 @@
"`eval?' without `language'"]
[(and (not create-text?) textualize?)
"`textualize?' without `create-text?'"]
[(and maxwidth (not untabify?))
"`untabify?' without `maxwidth'"]
[(and (not eval?) coverage?)
"`coverage?' without `eval?'"]
[(and textualize? coverage?)