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added tabifier

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svn: r6942
This commit is contained in:
Robby Findler 2007-07-21 20:01:15 +00:00
parent aab6fcdca6
commit 8d99cb38f3
1 changed files with 82 additions and 0 deletions
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82
collects/profj/tool.ss
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@ -77,6 +77,87 @@
(get-token get-syntax-token)
(token-sym->style short-sym->style-name)))
(define java-keymap (new keymap%))
(send java-keymap add-function "do-return" (λ (edit event) (send edit do-return)))
(send java-keymap map-function "return" "do-return")
(send java-keymap map-function "s:return" "do-return")
(send java-keymap map-function "s:c:return" "do-return")
(send java-keymap map-function "a:return" "do-return")
(send java-keymap map-function "s:a:return" "do-return")
(send java-keymap map-function "c:a:return" "do-return")
(send java-keymap map-function "c:s:a:return" "do-return")
(send java-keymap map-function "c:return" "do-return")
(send java-keymap map-function "d:return" "do-return")
(keymap:send-map-function-meta java-keymap "return" "do-return")
(keymap:send-map-function-meta java-keymap "s:return" "do-return")
(keymap:send-map-function-meta java-keymap "s:c:return" "do-return")
(keymap:send-map-function-meta java-keymap "a:return" "do-return")
(keymap:send-map-function-meta java-keymap "s:a:return" "do-return")
(keymap:send-map-function-meta java-keymap "c:a:return" "do-return")
(keymap:send-map-function-meta java-keymap "c:s:a:return" "do-return")
(keymap:send-map-function-meta java-keymap "c:return" "do-return")
(send java-keymap add-function "tabify-at-caret" (λ (edit event) (send edit java-tabify-selection)))
(send java-keymap map-function "TAB" "tabify-at-caret")
(define defs-text-mixin
(mixin (color:text<%> editor:keymap<%>) ()
(inherit insert classify-position
get-start-position get-end-position get-character delete
backward-match backward-containing-sexp
find-string position-paragraph paragraph-start-position
begin-edit-sequence end-edit-sequence)
(define single-tab-stop 2)
(define/private (get-indentation start-pos)
(let ([to-insert 0])
(let loop ([pos start-pos])
(let ([pos-before (backward-containing-sexp pos 0)])
(when pos-before
(let ([brace-pos (find-string "{" 'backward pos-before 0 #f)])
(when brace-pos
(set! to-insert (+ single-tab-stop to-insert))
(loop brace-pos))))))
(build-string to-insert (λ (x) #\space))))
(define/public (do-return)
(let ([start-pos (get-start-position)]
[end-pos (get-end-position)])
(let ([to-insert ""])
(if (= start-pos end-pos)
(insert (string-append "\n" (get-indentation start-pos)))
(insert "\n")))))
(define/public (java-tabify-selection)
(let ([start-para (position-paragraph (get-start-position))]
[end-para (position-paragraph (get-end-position))])
(begin-edit-sequence)
(let loop ([para start-para])
(let* ([para-start (paragraph-start-position para)]
[insertion (get-indentation para-start)]
[closer? #f])
(let loop ()
(let ([c (get-character para-start)])
(cond
[(and (char-whitespace? c)
(not (char=? c #\newline)))
(delete para-start (+ para-start 1))
(loop)]
[(char=? #\} c)
(set! closer? #t)])))
(if closer?
(insert (substring insertion 0 (max 0 (- (string-length insertion) single-tab-stop))) para-start para-start)
(insert insertion para-start para-start)))
(unless (= para end-para)
(loop (+ para 1))))
(end-edit-sequence)))
(define/override (get-keymaps)
(cons java-keymap (super get-keymaps)))
(super-new)))
;repl-submit: text int -> bool
;Determines if the reple should submit or not
(define (repl-submit text prompt-position)
@ -1005,6 +1086,7 @@
(register-capability-menu-item 'profj:special:java-interactions-box (get-special-menu))
))
(drscheme:get/extend:extend-definitions-text defs-text-mixin)
(drscheme:get/extend:extend-unit-frame java-interactions-box-mixin)
(drscheme:language:register-capability 'profj:special:java-interactions-box (flat-contract boolean?) #t)