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;;; uim-module-manager.scm: Part of uim-module-manager, it's not a part of libuim.
;;;
;;; Copyright (c) 2005-2012 uim Project http://code.google.com/p/uim/
;;;
;;; All rights reserved.
;;;
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;; 1. Redistributions of source code must retain the above copyright
;;; notice, this list of conditions and the following disclaimer.
;;; 2. Redistributions in binary form must reproduce the above copyright
;;; notice, this list of conditions and the following disclaimer in the
;;; documentation and/or other materials provided with the distribution.
;;; 3. Neither the name of authors nor the names of its contributors
;;; may be used to endorse or promote products derived from this software
;;; without specific prior written permission.
;;;
;;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
;;; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
;;; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;;; ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
;;; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
;;; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
;;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
;;; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
;;; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
;;; SUCH DAMAGE.
;;;;

(require "util.scm")
(require "im.scm")
(require "lazy-load.scm")

(define stub-im-list '()) ;; dummy

(define prepare-installed-im-list
  (lambda ()
    (let ((orig-enabled-im-list enabled-im-list)
(orig-require require))
      (set! enabled-im-list ()) ;; enable all IMs
      (set! im-list ()) ;; reset im-list
      ;; XXX temporary solution to register all IM in a file
      (set! require
(lambda (file)
(let* ((loaded-sym (string->symbol
(string-append "*" file "-loaded*")))
(reloaded-sym (string->symbol
(string-append "*" file "-reloaded*"))))
(cond
((symbol-bound? reloaded-sym)
loaded-sym)
((try-load file)
(eval (list 'define loaded-sym #t)
(interaction-environment))
(eval (list 'define reloaded-sym #t)
(interaction-environment))
loaded-sym)
(else
#f)))))
      (for-each require-module installed-im-module-list)
      (set! require orig-require)
      (set! enabled-im-list orig-enabled-im-list)
      (reverse (delete 'direct (map im-name im-list))))))

(define add-modules-to-module-list
  (lambda (modules current-module-list)
    (append
     (filter
      (lambda (module)
;; Test if the module is valid
(if (require-module (symbol->string module))
#t
(begin (display (string-append "Warning: Module "
(symbol->string module)
" is not a correct module.\n"))
#f)))
      (remove
       (lambda (module)
(if (memq module current-module-list)
(begin (display (string-append "Warning: Module "
(symbol->string module)
" is already registered\n"))
#t)
#f))
       modules))
     current-module-list)))

(define remove-modules-from-module-list
  (lambda (removing-modules current-module-list)
    (remove
     (lambda (module)
       (if (memq module removing-modules)
#t
#f))
     current-module-list)))

;; This function is called with 'uim-module-manager --register'
(define register-modules
  (lambda (module-names)
    (let* ((modules (map string->symbol module-names))
(current-module-list (map string->symbol installed-im-module-list))
(revised-module-list (add-modules-to-module-list modules
current-module-list)))
      (update-all-files revised-module-list))))

;; This function is called with 'uim-module-manager --unregister'
(define unregister-modules
  (lambda (module-names)
    (let* ((modules (map string->symbol module-names))
(current-module-list (map string->symbol installed-im-module-list))
(revised-module-list (remove-modules-from-module-list
modules
current-module-list)))
      (update-all-files revised-module-list))))

(define unregister-all-modules
  (lambda (dummy)
    (update-all-files '())))

(define update-all-files
  (lambda (module-list)
    (update-installed-modules-scm module-list)
    (update-loader-scm module-list)))

(define update-loader-scm
  (lambda (module-list)
    (set! installed-im-module-list (map symbol->string module-list))
    (write-loader.scm
     (string-append
      "(define stub-im-rec-spec\n"
      " '((name #f)\n"
      " (lang \"\")\n"
      " (encoding \"\")\n"
      " (name-label \"\")\n"
      " (short-desc \"\")\n"
      " (module-name \"\")))\n"
      "(define-record 'stub-im stub-im-rec-spec)\n\n"
      "(define stub-im-list\n"
      " '(\n"
      (string-join (stub-im-generate-all-stub-im-list) "\n")
      " ))\n\n"
      "(for-each (lambda (stub)\n"
      " (if (memq (stub-im-name stub) enabled-im-list)\n"
      " (if enable-lazy-loading?\n"
      " (apply register-stub-im stub)\n"
      " (require-module (stub-im-module-name stub)))))\n"
      " stub-im-list)\n"
      ))))

(define update-installed-modules-scm
  (lambda (module-list)
    (set! installed-im-module-list (map symbol->string module-list))
    (try-require "custom.scm")
    (set! installed-im-list (prepare-installed-im-list))
    (write-installed-modules.scm
     (string-append
      ";; The described order of input methods affects which IM is preferred\n"
      ";; at the default IM selection process for each locale. i.e. list\n"
      ";; preferable IM first for each language\n"
      "(define installed-im-module-list "
      (custom-list-as-literal installed-im-module-list)
      ")\n"
      "(define installed-im-list "
      (custom-list-as-literal installed-im-list)
      ")\n"
      "(define enabled-im-list installed-im-list)\n"))))


(prealloc-heaps-for-heavy-job)
(verbose 1)
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