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original commit: 6b36626bca7185d1fb530b98b8e1e3d28ad27689
This commit is contained in:
Matthew Flatt
parent
77d5983c44
commit
431bd91d9b
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@ -1,66 +1,130 @@
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(require-library "browser.ss" "browser")
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(define f (make-object frame% "PLT Help" #f 400 400))
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(define top (make-object vertical-pane% f))
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(define results (make-object editor-canvas% f))
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(define f (make-object (class frame% args
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(override [on-close exit])
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(sequence (apply super-init args)))
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"PLT Help" #f 600 440))
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(define html-panel (make-object hyper-panel% f))
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(define results (send html-panel get-canvas))
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(define t (make-object text-field% "Help on:" top void))
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(define top (make-object vertical-pane% f))
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(define t (make-object text-field% "Find help on:" top void))
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(define search-pane (make-object horizontal-pane% top))
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(define button (make-object button% "Search" search-pane (lambda (b e) (start-search)) '(border)))
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(define button (make-object button% "Search" search-pane (lambda (b e) (set! collecting-thread (thread start-search))) '(border)))
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(define where (make-object choice% #f '("for Keyword"
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"for Keyword or Index Entry"
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"for Keyword, Index Entry, or Text")
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search-pane
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void))
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(define exact (make-object check-box% "Exact" search-pane void))
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search-pane void))
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(define exact (make-object choice% #f '("exact match"
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"containing match"
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"regexp match")
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search-pane void))
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(define stop (make-object button% "Stop" search-pane
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(lambda (b e)
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(break-thread collecting-thread))))
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(define editor (make-object text%))
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(send results set-editor editor)
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(send exact set-selection 1)
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(send stop show #f)
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(define results-editor% (class hyper-text% ()
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(inherit set-title)
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(sequence
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(super-init #f)
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(set-title "Search Results"))))
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(send top stretchable-height #f)
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(send t focus)
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(let* ([mb (make-object menu-bar% f)]
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[file (make-object menu% "&File" mb)]
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[edit (make-object menu% "&Edit" mb)])
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(append-editor-operation-menu-items edit)
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(make-object menu-item% "Quit" file (lambda (i e) (exit)) #\Q))
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(send f show #t)
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(define link-delta (make-object style-delta% 'change-underline #t))
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(let ([mult (send link-delta get-foreground-mult)]
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[add (send link-delta get-foreground-add)])
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(send mult set 0 0 0)
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(send add set 0 0 255))
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(send results goto-url
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(string-append "file:" (build-path (collection-path "doc") "start.htm"))
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#f)
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(define (add-choice type name title page label)
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(send editor insert (format "~a " type) (send editor last-position))
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(let ([start (send editor last-position)])
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(send editor begin-edit-sequence)
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(send editor insert (format "~a in ~s~n" name title) start)
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(let ([end (sub1 (send editor last-position))])
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(send editor change-style link-delta start end)
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(send editor set-clickback start end
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(lambda (edit start end)
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(open-url (make-url
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"file"
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#f ; host
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#f ; port
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page
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#f ; params
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#f ; query
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label)))))
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(send editor end-edit-sequence)))
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(define cycle-key #f)
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(define collecting-thread #f)
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(define re:iname "A HREF=\"(node[0-9]*[.]htm)\"><IMG SRC=\"../icons/index.gif")
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(define re:ientry "<DT><TT>([^<]*)</TT>")
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(define re:ilink "<A HREF=\"(node[0-9]*[.]htm)#([0-9]*)\">([^<]*)</A>(.*)")
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(define choices-sema (make-semaphore 1))
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(define choices null)
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(define (add-choice type name title page label ckey)
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(semaphore-wait choices-sema)
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(set! choices (cons (list type name title page label) choices))
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(semaphore-post choices-sema)
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(queue-callback
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(lambda ()
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(when (eq? cycle-key ckey)
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(semaphore-wait choices-sema)
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(let ([l choices]
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[editor (send results get-editor)])
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(set! choices null)
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(semaphore-post choices-sema)
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(send editor begin-edit-sequence)
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(for-each
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(lambda (i)
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(let-values ([(type name title page label) (apply values i)])
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(if type
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(begin
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(send editor insert " " (send editor last-position) 'same #f)
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(let ([start (send editor last-position)])
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(send editor insert name start 'same #f)
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(let ([end (send editor last-position)])
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(send editor insert (format " in ~s~n" title) end 'same #f)
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(send editor make-link-style start end)
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(send editor set-clickback start end
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(lambda (edit start end)
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(send results goto-url
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(make-url
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"file"
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#f ; host
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#f ; port
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page
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#f ; params
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#f ; query
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label)
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#f))))))
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(begin
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(send editor insert (format "In ~a:~n" name) (send editor last-position) 'same #f)))))
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(reverse l))
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(send editor end-edit-sequence))))
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#f))
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(define (add-section name ckey)
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(add-choice #f name #f #f #f ckey))
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(define re:iname (regexp "A HREF=\"(node[0-9]*[.]htm)\"><IMG SRC=\"../icons/index.gif"))
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(define re:ientry (regexp "<DT>(.*)<DD>"))
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(define re:ilink (regexp "(.*)<A HREF=\"(node[0-9]*[.]htm)#([0-9]*)\">(.*)</A>"))
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(define indices (make-hash-table))
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(define (clean-index-entry s)
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(regexp-replace*
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"<[^>]*>"
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(regexp-replace*
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">"
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(regexp-replace*
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"<"
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s
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"<")
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">")
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""))
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(define (load-index doc)
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(hash-table-get
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indices
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(string->symbol doc)
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(lambda ()
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(let ([index-file (with-handlers ([(lambda (x) #t) (lambda (x) #f)])
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(let ([index-file (with-handlers ([(lambda (x) (not (exn:misc:user-break? x))) (lambda (x) #f)])
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(with-input-from-file (build-path doc "index.htm")
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(lambda ()
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(let loop ()
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@ -73,7 +137,10 @@
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[else (loop)]))))))])
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(let ([index
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(and index-file
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(with-handlers ([(lambda (x) #f) (lambda (x) #f)])
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(with-handlers ([(lambda (x) (not (exn:misc:user-break? x)))
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(lambda (x)
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; (printf "~a~n" (exn-message x))
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#f)])
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(with-input-from-file (build-path doc index-file)
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(lambda ()
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(let loop ()
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@ -82,75 +149,133 @@
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null
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(let ([m (regexp-match re:ientry r)])
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(if m
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(cons (cons (cadr m) r) (loop))
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(cons (cons (clean-index-entry (cadr m)) r)
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(loop))
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(loop))))))))))])
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(hash-table-put! indices (string->symbol doc) index)
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index)))))
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(define (non-regexp s)
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(list->string
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(apply
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append
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(map
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(lambda (c)
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(if (memq c '(#\$ #\| #\\ #\[ #\] #\. #\* #\? #\+ #\( #\)))
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(list #\\ c)
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(list c)))
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(string->list s)))))
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(define (start-search)
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(let ([find (send t get-value)]
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[search-level (send where get-selection)]
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[exact? (send exact get-value)])
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(let* ([given-find (send t get-value)]
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[find (let ([s given-find])
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(case (send exact get-selection)
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[(0) s]
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[(1) (regexp (non-regexp s))] ; substring (not regexp) match
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[else (regexp s)]))]
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[search-level (send where get-selection)]
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[regexp? (= 2 (send exact get-selection))]
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[exact? (= 0 (send exact get-selection))]
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[ckey (gensym)]
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[editor (let ([e (send results get-editor)])
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(if (is-a? e results-editor%)
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e
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(let ([e (make-object results-editor%)])
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(send results set-page (editor->page e) #t)
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e)))])
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(dynamic-wind
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(lambda ()
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(begin-busy-cursor)
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(send html-panel enable #f)
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(send button enable #f)
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(send where enable #f)
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(send exact enable #f))
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(send exact enable #f)
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(set! cycle-key ckey))
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(lambda ()
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(send editor erase)
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(let* ([path (collection-path "doc")]
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[docs (map (lambda (x) (build-path path x)) (directory-list path))])
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;; Keyword searches
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(for-each
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(lambda (doc)
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(let ([keywords (build-path doc "keywords")])
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(when (file-exists? keywords)
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(let ([keys (with-input-from-file keywords read)]
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[add-key-choice (lambda (v)
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(add-choice
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"key" (cadr v) (list-ref v 4)
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(build-path doc (list-ref v 2))
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(list-ref v 3)))])
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(let ([v (assoc find keys)])
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(when v (add-key-choice v)))
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(unless exact?
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(for-each
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(lambda (v)
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(when (regexp-match find (car v))
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(unless (string=? find (car v))
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(add-key-choice v))))
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keys))))))
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docs)
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;; Index searches
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(unless (< search-level 1)
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(with-handlers ([exn:misc:user-break?
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(lambda (x)
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(queue-callback
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(lambda ()
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(when (eq? cycle-key ckey)
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(send editor insert "(Search stopped.)" (send editor last-position) 'same #f)))
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#f))])
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(send stop show #t)
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(send editor erase)
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(let* ([path (collection-path "doc")]
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[doc-names (directory-list path)]
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[docs (map (lambda (x) (build-path path x)) doc-names)])
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(for-each
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(lambda (doc)
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(let ([index (load-index doc)]
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[add-index-choice (lambda (name desc)
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(let loop ([desc desc])
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(let ([m (regexp-match re:ilink desc)])
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(when m
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(add-choice "idx" name
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(list-ref m 3)
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(build-path doc (list-ref m 1))
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(list-ref m 2))
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(loop (list-ref m 4))))))])
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(when index
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(let ([v (assoc find index)])
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(when v (add-index-choice (car v) (cdr v))))
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(unless exact?
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(for-each
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(lambda (v)
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(when (regexp-match find (car v))
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(unless (string=? find (car v))
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(add-index-choice (car v) (cdr v)))))
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index)))))
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docs)))
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(when (zero? (send editor last-position))
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(send editor insert (format "Found nothing for ~a." find))))
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(lambda (doc doc-name)
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(define found-one? #f)
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(define (found)
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(unless found-one?
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(set! found-one? #t)
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(add-section doc-name ckey)))
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;; Keyword search
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(let ([keywords (build-path doc "keywords")])
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(when (file-exists? keywords)
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(let ([keys (with-input-from-file keywords read)]
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[add-key-choice (lambda (v)
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(found)
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(add-choice
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"key" (cadr v) (list-ref v 4)
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(build-path doc (list-ref v 2))
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(list-ref v 3)
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ckey))])
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(unless regexp?
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(for-each
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(lambda (v)
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(when (string=? given-find (car v))
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(add-key-choice v)))
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keys))
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(unless exact?
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(for-each
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(lambda (v)
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(when (regexp-match find (car v))
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(unless (and (not regexp?) (string=? given-find (car v)))
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(add-key-choice v))))
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keys)))))
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;; Index search
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(unless (< search-level 1)
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(let ([index (load-index doc)]
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[add-index-choice (lambda (name desc)
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(let loop ([desc desc])
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(let ([m (regexp-match re:ilink desc)])
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(when m
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(loop (list-ref m 1))
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(found)
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(add-choice "idx" name
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(clean-index-entry (list-ref m 4))
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(build-path doc (list-ref m 2))
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(clean-index-entry (list-ref m 3))
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ckey)))))])
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(when index
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(unless regexp?
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(for-each
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(lambda (v)
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(when (string=? given-find (car v))
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(add-index-choice (car v) (cdr v))))
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index))
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(unless exact?
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(for-each
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(lambda (v)
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(when (regexp-match find (car v))
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(unless (and (not regexp?) (string=? given-find (car v)))
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(add-index-choice (car v) (cdr v)))))
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index))))))
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docs doc-names))
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(queue-callback
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(lambda ()
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(when (eq? cycle-key ckey)
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(when (zero? (send editor last-position))
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(send editor insert (format "Found nothing for \"~a\"." given-find)))))
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#f)))
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(lambda ()
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(send stop show #f)
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(send html-panel enable #t)
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(send button enable #t)
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(send where enable #t)
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(send exact enable #t)))))
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(send exact enable #t)
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(end-busy-cursor)))))
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(yield (make-semaphore 0))
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