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fixed :: in doc.txt files

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svn: r5154

original commit: 5e2fb3605ccbb04eb89ba9b8c1d950cf6b845b2f
This commit is contained in:
Robby Findler 2006-12-21 15:39:38 +00:00
parent a523a718de
commit ae1bfa56c0
1 changed files with 79 additions and 68 deletions
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147
collects/help/private/search.ss
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@ -3,6 +3,7 @@
"colldocs.ss"
"path.ss"
"manuals.ss"
(lib "port.ss")
(lib "getinfo.ss" "setup")
(lib "list.ss")
(lib "plt-match.ss")
@ -177,71 +178,73 @@
l)
l)))))
(define (parse-txt-file doc ht handle-one)
(define (parse-txt-file doc ht handle-parsing)
(with-hash-table
ht
doc
(lambda ()
(with-handlers ([exn:fail:filesystem? (lambda (x) null)])
(with-input-from-file doc
(lambda ()
(let loop ([start 0])
(let* ([r (read-line (current-input-port) 'any)]
[next (if (eof-object? r)
start
(+ start (string-length r) 1))])
(cond
[(eof-object? r) null]
[(handle-one r start) => (lambda (vs) (append vs (loop next)))]
[else (loop next)])))))))))
(call-with-input-file doc
handle-parsing)))))
(define re:keyword-line (regexp "^>"))
(define re:keyword-line (regexp "\n>"))
(define text-keywords (make-hash-table 'equal))
(define (load-txt-keywords doc)
(parse-txt-file
(apply build-path doc)
text-keywords
(lambda (r start)
(cond
[(regexp-match re:keyword-line r)
(let/ec k
(let* ([p (open-input-string (substring r 1 (string-length r)))]
[entry (parameterize ([read-accept-bar-quote #f])
(with-handlers ([exn:fail:read?
(lambda (x)
(k null))])
(read p)))]
[key (let loop ([l-entry entry])
(cond
[(symbol? l-entry) l-entry]
[(pair? l-entry) (if (and (eq? (car l-entry) 'quote)
(pair? (cdr l-entry)))
(loop (cadr l-entry))
(loop (car l-entry)))]
[else (error 'load-txt-keyworsd "bad entry in ~s: ~s" doc entry)]))]
[content (if (symbol? entry)
(with-handlers ([exn:fail:read? (lambda (x) #f)])
(let ([s (read p)])
(if (eq? s '::)
(read p)
#f)))
#f)])
(list
; Make the keyword entry:
(list (symbol->string key) ; the keyword name
(let ([p (open-output-string)])
(if content
(display content p)
(if (and (pair? entry)
(pair? (cdr entry))
(eq? (car entry) 'quote))
(fprintf p "'~s" (cadr entry))
(display entry p)))
(get-output-string p)) ; the text to display
(cadr doc) ; file
start ; label (a position in this case)
"doc.txt"))))] ; title
[else #f]))))
(λ (p)
(port-count-lines! p)
(let loop ()
(let ([m (regexp-match re:keyword-line p)])
(cond
[m
(let/ec k
(let* ([peek-port (peeking-input-port p)]
[entry (parameterize ([read-accept-bar-quote #f])
(with-handlers ([exn:fail:read?
(lambda (x)
(fprintf (current-error-port)
"Found > line in ~s that did not parse properly: ~s\n"
(path->string (apply build-path doc))
(exn-message x))
(k null))])
(read peek-port)))]
[key (let loop ([l-entry entry])
(cond
[(symbol? l-entry) l-entry]
[(pair? l-entry) (if (and (eq? (car l-entry) 'quote)
(pair? (cdr l-entry)))
(loop (cadr l-entry))
(loop (car l-entry)))]
[else (error 'load-txt-keyworsd "bad entry in ~s: ~s" doc entry)]))]
[content (if (symbol? entry)
(with-handlers ([exn:fail:read? (lambda (x) #f)])
(let ([s (read peek-port)])
(if (eq? s '::)
(format "~s ~s ~s" entry s (read peek-port))
#f)))
#f)]
[txt-to-display
(let ([p (open-output-string)])
(if content
(display content p)
(if (and (pair? entry)
(pair? (cdr entry))
(eq? (car entry) 'quote))
(fprintf p "'~s" (cadr entry))
(display entry p)))
(get-output-string p))]
[kwd-entry
; Make the keyword entry:
(list (symbol->string key) ; the keyword name
txt-to-display ; the text to display
(cadr doc) ; file
(let-values ([(line col pos) (port-next-location p)])
(- pos 2)) ; label (a position in this case)
"doc.txt")])
(cons kwd-entry (loop))))] ; title
[else null]))))))
(define re:index-line (regexp "_([^_]*)_(.*)"))
(define text-indices (make-hash-table 'equal))
@ -249,20 +252,28 @@
(parse-txt-file
(apply build-path doc)
text-indices
(lambda (r start)
(cond
[(regexp-match re:index-line r)
=> (lambda (m)
(let loop ([m m])
(let ([s (cadr m)])
(cons
; Make an index entry:
(cons s start)
(let ([m (regexp-match re:index-line (caddr m))])
(if m
(loop m)
null))))))]
[else #f]))))
(λ (p)
(let loop ([start 0])
(let* ([r (read-line p 'any)]
[next (if (eof-object? r)
start
(+ start (string-length r) 1))])
(cond
[(eof-object? r) null]
[(regexp-match re:index-line r)
=>
(lambda (m)
(append (let loop ([m m])
(let ([s (cadr m)])
(cons
; Make an index entry:
(cons s start)
(let ([m (regexp-match re:index-line (caddr m))])
(if m
(loop m)
null)))))
(loop next)))]
[else (loop next)]))))))
(define re:splitter (regexp "^ *([^ ]+)(.*)"))
(define (split-words s)