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- ;;!emacs
- ;;
- ;; FILE: br-lib.el
- ;; SUMMARY: OO-Browser support functions.
- ;; USAGE: GNU Emacs Lisp Library
- ;; KEYWORDS: oop, tools
- ;;
- ;; AUTHOR: Bob Weiner
- ;; ORG: Motorola Inc.
- ;;
- ;; ORIG-DATE: 22-Mar-90
- ;; LAST-MOD: 24-Aug-95 at 17:11:03 by Bob Weiner
- ;;
- ;; Copyright (C) 1990-1995 Free Software Foundation, Inc.
- ;; See the file BR-COPY for license information.
- ;;
- ;; This file is part of the OO-Browser.
-
- ;;; ************************************************************************
- ;;; Other required Elisp libraries
- ;;; ************************************************************************
-
- (mapcar 'require '(br-env br-ftr br-compl set))
-
- ;;; ************************************************************************
- ;;; Public variables
- ;;; ************************************************************************
-
- (defvar br-null-path "<none>"
- "Pathname associated with OO-Browser entities which have no source file.
- That is, virtual entities, such as categories.")
-
- ;;; ************************************************************************
- ;;; General public functions
- ;;; ************************************************************************
-
- (defun br-buffer-replace (regexp to-str)
- "In current buffer, replace all occurrences of REGEXP with TO-STR."
- (goto-char (point-min))
- (while (re-search-forward regexp nil t)
- (replace-match to-str 'fixedcase nil)
- (backward-char 1)))
-
- (defun br-delete-space (string)
- "Delete any leading and trailing space from STRING and return the STRING. "
- (if (string-match "\\`\\s *\\(\\(.\\|\n\\)*\\S \\)\\s *\\'" string)
- (setq string (substring string (match-beginning 1)
- (match-end 1)))
- string))
-
- (defun br-first-match (regexp list)
- "Return non-nil if REGEXP matches to an element of LIST.
- All elements of LIST must be strings.
- The value returned is the first matched element."
- (while (and list (not (string-match regexp (car list))))
- (setq list (cdr list)))
- (car list))
-
- (defun br-filename-head (path)
- (setq path (file-name-nondirectory path))
- (if (string-match "\\(.+\\)\\." path)
- (substring path 0 (match-end 1))
- path))
-
- (defun br-duplicate-and-unique-strings (sorted-strings)
- "Return SORTED-STRINGS list with a list of duplicate entries consed onto the front of the list."
- (let ((elt1) (elt2) (lst sorted-strings)
- (count 0) (repeat) (duplicates))
- (while (setq elt1 (car lst) elt2 (car (cdr lst)))
- (cond ((not (string-equal elt1 elt2))
- (setq lst (cdr lst)))
- ((equal elt1 repeat)
- ;; Already recorded this duplicate.
- (setcdr lst (cdr (cdr lst))))
- (t ;; new duplicate
- (setq count (1+ count)
- duplicates (cons elt1 duplicates)
- repeat elt1)
- (setcdr lst (cdr (cdr lst))))))
- (cons (sort duplicates 'string-lessp) sorted-strings)))
-
- (defun br-set-of-strings (sorted-strings &optional count)
- "Return SORTED-STRINGS list with any duplicate entries removed.
- Optional COUNT conses number of duplicates on to front of list before return."
- (and count (setq count 0))
- (let ((elt1) (elt2) (lst sorted-strings)
- (test (if count
- (function
- (lambda (a b) (if (string-equal a b)
- (setq count (1+ count)))))
- (function (lambda (a b) (string-equal a b))))))
- (while (setq elt1 (car lst) elt2 (car (cdr lst)))
- (if (funcall test elt1 elt2)
- (setcdr lst (cdr (cdr lst)))
- (setq lst (cdr lst)))))
- (if count (cons count sorted-strings) sorted-strings))
-
- (defun br-member-sorted-strings (elt list)
- "Return non-nil if ELT is an element of LIST. Comparison done with 'string-equal'.
- All ELTs must be strings and the list must be sorted in ascending order.
- The value returned is actually the tail of LIST whose car is ELT."
- (while (and list (not (string-equal (car list) elt)))
- (setq list (and (string-lessp (car list) elt)
- (cdr list))))
- list)
-
- (defun br-pathname-head (path)
- (if (string-match "\\(.+\\)\\." path)
- (substring path 0 (match-end 1))
- path))
-
- (defun br-quote-match (match-num)
- "Quote special symbols in last matched expression MATCH-NUM."
- (br-regexp-quote (buffer-substring (match-beginning match-num)
- (match-end match-num))))
-
- (defun br-rassoc (elt list)
- "Return non-nil if ELT is the cdr of an element of LIST.
- Comparison done with 'equal'. The value is actually the tail of LIST
- starting at the element whose cdr is ELT."
- (while (and list (not (equal (cdr (car list)) elt)))
- (setq list (cdr list)))
- list)
-
- (defun br-regexp-quote (obj)
- "If OBJ is a string, quote and return it for use in a regular expression."
- ;; Don't use (stringp obj) here since we want to signal an error if some
- ;; caller ever passes in a non-nil, non-string object, to aid in debugging.
- (if obj (regexp-quote obj)))
-
- (defun br-relative-path (filename &optional directory)
- "Convert FILENAME to be relative to DIRECTORY or default-directory.
- The shorter of the absolute and relative paths is returned."
- (let ((relative-path (file-relative-name filename directory)))
- (if (< (length relative-path) (length filename))
- relative-path
- filename)))
-
- (defmacro br-set-cons (set elt)
- "Add to SET element ELT. Returns nil iff ELT is already in SET.
- Uses 'equal' for comparison."
- (` (if (br-member (, elt) (, set))
- nil
- (setq (, set) (cons (, elt) (, set))))))
-
-
- (defun br-wind-line-at-point ()
- "Return window relative line number that point is on."
- (max 0 (1- (- (count-lines 1 (1+ (point)))
- (count-lines 1 (window-start))))))
-
- ;;; ************************************************************************
- ;;; Browser public functions
- ;;; ************************************************************************
-
- (defun br-add-class (class-name &optional class-path lib-table-p save-file)
- "Add or replace CLASS-NAME in current Environment.
- Find class source in optional CLASS-PATH. Interactively or when optional
- CLASS-PATH is nil, defaults to current buffer file as CLASS-PATH. If
- optional LIB-TABLE-P is non-nil, add to Library Environment, otherwise add to
- System Environment. If optional SAVE-FILE is t, the Environment is then
- stored to filename given by 'br-env-file'. If SAVE-FILE is non-nil and
- not t, its string value is used as the file to which to save the Environment.
- Does not update children lookup table."
- (interactive
- (list (read-string "Class name to add: ")
- (read-file-name (concat "Class file name"
- (if buffer-file-name
- " (default <current file>)")
- ": ")
- nil buffer-file-name t)
- (y-or-n-p "Add to Library, rather than System tables? ")
- (y-or-n-p
- (concat "Save tables after addition to " br-env-file "? "))))
- ;;
- ;; Pseudo code:
- ;;
- ;; If class-name is in table
- ;; If function called interactively
- ;; Query whether should overwrite class-name in tables
- ;; If yes
- ;; Replace entry
- ;; else
- ;; Don't add class; do nothing
- ;; end
- ;; else
- ;; Store class in all necessary tables
- ;; end
- ;; else
- ;; Store class under key in all necessary tables
- ;; end
- ;;
- (or class-path (setq class-path buffer-file-name)
- (error "No class pathname specified."))
- (if (or (string-equal class-name "")
- (not (or (equal class-path br-null-path)
- (file-exists-p class-path))))
- (error (format "Invalid class specified, '%s', in: %s" class-name class-path)))
- ;; Is class already in Environment?
- (if (hash-key-p class-name (br-get-htable
- (if lib-table-p "lib-parents" "sys-parents")))
- (if (interactive-p)
- (if (y-or-n-p (format "Overwrite existing '%s' entry? " class-name))
- (br-real-add-class lib-table-p class-name class-path 'replace)
- (setq save-file nil))
- (br-real-add-class lib-table-p class-name class-path))
- (br-real-add-class lib-table-p class-name class-path))
- (cond ((eq save-file nil))
- ((eq save-file t) (br-env-save))
- ((br-env-save save-file))))
-
- (defun br-build-lib-htable ()
- "Build Library dependent Environment."
- (interactive)
- (cond ((and (interactive-p)
- (not (y-or-n-p "Rebuild Library Environment? ")))
- nil)
- (t
- (message "Building Library Environment...")
- (sit-for 2)
- (br-real-build-alists br-lib-search-dirs)
- (setq br-lib-paths-htable (hash-make br-paths-alist)
- br-lib-parents-htable (hash-make br-parents-alist))
- (run-hooks 'br-after-build-lib-hook)
- (br-env-set-htables)
- (br-build-children-htable)
- ;; Set prev-search-dirs so table rebuilds are not triggered.
- (setq br-lib-prev-search-dirs br-lib-search-dirs)
- (if (interactive-p) (br-env-save))
- (message "Building Library Environment...Done")
- t)))
-
- (defun br-build-sys-htable ()
- "Build System dependent class Environment."
- (interactive)
- (cond ((and (interactive-p)
- (not (y-or-n-p "Rebuild System Environment? ")))
- nil)
- (t
- (message "Building System Environment...")
- (sit-for 2)
- (br-real-build-alists br-sys-search-dirs)
- (setq br-sys-paths-htable (hash-make br-paths-alist)
- br-sys-parents-htable (hash-make br-parents-alist))
- (run-hooks 'br-after-build-sys-hook)
- (br-env-set-htables)
- (br-build-children-htable)
- ;; Set prev-search-dirs so table rebuilds are not triggered.
- (setq br-sys-prev-search-dirs br-sys-search-dirs)
- (if (interactive-p) (br-env-save))
- (message "Building System Environment...Done")
- t)))
-
- (defun br-class-in-table-p (class-name)
- "Return t iff CLASS-NAME is found in current Environment."
- (interactive (list (br-complete-class-name)))
- (if class-name (hash-key-p class-name (br-get-parents-htable))))
-
- (defun br-class-path (class-name &optional insert)
- "Return full path, if any, to CLASS-NAME.
- With optional prefix argument INSERT non-nil, insert path at point.
- Only the first matching class is returned, so each CLASS-NAME should be
- unique. Set 'br-lib/sys-search-dirs' properly before use."
- (interactive (list (br-complete-class-name)))
- (setq class-name (if class-name (br-set-case class-name)))
- (let* ((class-path)
- (class-htable (br-get-paths-htable)))
- (hash-map
- (function (lambda (val-key-cons)
- (and (null class-path)
- (br-member-sorted-strings class-name (car val-key-cons))
- (setq class-path (br-select-path val-key-cons nil)))))
- class-htable)
- (if (equal class-path br-null-path)
- (setq class-path nil))
- (and (interactive-p) (setq insert current-prefix-arg))
- (if (and insert class-path)
- (insert class-path)
- (if (interactive-p)
- (message
- (or class-path
- (format
- "(OO-Browser): No '%s' class found in 'br-lib/sys-search-dirs'."
- class-name)))))
- class-path))
-
- (defun br-find-class (&optional class-name view-only other-win)
- "Display file of class text matching CLASS-NAME in VIEW-ONLY mode if non-nil.
- Return t if class is successfully displayed, nil otherwise. Can also
- signal an error when called interactively."
- (interactive)
- (and (interactive-p) (setq view-only current-prefix-arg))
- (let ((class-path)
- (info (equal br-lang-prefix "info-"))
- (err))
- (setq class-name
- (or class-name (br-complete-class-name))
- class-path (br-class-path class-name))
- (cond
- (info (info-find-nd class-path class-name (not view-only)))
- (class-path
- (if (file-readable-p class-path)
- (progn (if view-only
- (funcall br-view-file-function class-path other-win)
- (funcall br-edit-file-function class-path other-win)
- ;; Handle case of already existing buffer in
- ;; read only mode.
- (and buffer-read-only
- (file-writable-p class-path)
- (progn (setq buffer-read-only nil)
- ;; Force mode-line redisplay
- (set-buffer-modified-p
- (buffer-modified-p)))))
- (br-major-mode)
- (let ((opoint (point))
- (start)
- (pmin (point-min))
- (pmax (point-max))
- (class-def (br-class-definition-regexp class-name)))
- (widen)
- (goto-char (point-min))
- (if br-narrow-view-to-class
- ;; Display file narrowed to definition of
- ;; 'class-name'.
- (if (re-search-forward class-def nil t)
- ;; Narrow display to this class
- (progn (narrow-to-region
- (progn (setq opoint
- (goto-char
- (match-beginning 0)))
- (br-to-comments-begin)
- (setq start (point))
- (goto-char opoint)
- start)
- (progn (br-to-class-end)
- (point)))
- (goto-char (point-min)))
- (goto-char opoint)
- (narrow-to-region pmin pmax)
- (setq err (format "(OO-Browser): No '%s' in %s" class-name
- class-path))
- )
- (if (re-search-forward class-def nil t)
- (progn (setq opoint (goto-char (match-beginning 0)))
- (br-to-comments-begin)
- (recenter 0))
- (goto-char opoint)
- (narrow-to-region pmin pmax)
- (setq err (format "(OO-Browser): No '%s' in %s" class-name
- class-path))
- )))
- (setq class-path t))
- (setq err (format "(OO-Browser): '%s' - src file not found or not readable, %s"
- class-name class-path)
- class-path nil)
- )
- (if (interactive-p)
- (setq err
- (format "(OO-Browser): No '%s' class defined in Environment."
- class-name))
- )))
- (if err (error err))
- class-path))
-
- (defun br-major-mode ()
- "Invoke language-specific major mode on current buffer if not already set."
- (or (eq major-mode (symbol-function 'br-lang-mode))
- (br-lang-mode)))
-
- (defun br-show-children (class-name)
- "Return children of CLASS-NAME from current Environment."
- (interactive (list (br-complete-class-name t)))
- (and class-name
- (br-get-children class-name)))
-
- (defun br-show-parents (class-name)
- "Return parents of CLASS-NAME from Environment or scan of current buffer's source."
- (interactive (list (br-complete-class-name t)))
- (and class-name
- (if (br-class-in-table-p class-name)
- (br-get-parents class-name)
- (and buffer-file-name (br-get-parents-from-source buffer-file-name
- class-name)))))
-
- (defun br-undefined-classes ()
- "Return a list of the classes referenced but not defined within the current Environment."
- (let ((classes (hash-get br-null-path (br-get-paths-htable))))
- (delq nil (mapcar (function (lambda (class)
- ;; Remove default classes
- (if (/= (aref class 0) ?\[)
- class)))
- classes))))
-
- ;;; ************************************************************************
- ;;; Private functions
- ;;; ************************************************************************
-
- (defun br-add-to-paths-htable (class-name paths-key htable)
- "Add CLASS-NAME under PATHS-KEY in paths lookup HTABLE, keeping the classes sorted."
- (let ((other-classes (hash-get paths-key htable)))
- (if (and other-classes (br-member-sorted-strings class-name other-classes))
- nil
- (hash-add (sort (cons class-name other-classes) 'string-lessp)
- paths-key htable))))
-
- (defun br-build-lib-parents-htable ()
- (interactive)
- (if (not br-lib-search-dirs)
- nil
- (message "Building Library parent...")
- (sit-for 2)
- (setq br-lib-parents-htable
- (hash-make
- (if br-lib-paths-htable
- (br-real-build-parents-alist br-lib-paths-htable)
- (br-real-build-alists br-lib-search-dirs)
- br-parents-alist)))
- (if (interactive-p) (br-env-save))
- (message "Building Library parent...Done")))
-
- (defun br-build-lib-paths-htable ()
- (interactive)
- (if (not br-lib-search-dirs)
- nil
- (message "Building Library paths...")
- (sit-for 2)
- (br-real-build-alists br-lib-search-dirs)
- (setq br-lib-paths-htable (hash-make br-paths-alist))
- (if (interactive-p) (br-env-save))
- (message "Building Library paths...Done")))
-
- (defun br-build-sys-parents-htable ()
- (interactive)
- (if (not br-sys-search-dirs)
- nil
- (message "Building System parents...")
- (sit-for 2)
- (setq br-sys-parents-htable
- (hash-make
- (if br-sys-paths-htable
- (br-real-build-parents-alist br-sys-paths-htable)
- (br-real-build-alists br-sys-search-dirs)
- br-parents-alist)))
- (if (interactive-p) (br-env-save))
- (message "Building System parents...Done")))
-
- (defun br-build-sys-paths-htable ()
- (interactive)
- (if (not br-sys-search-dirs)
- nil
- (message "Building System paths...")
- (sit-for 2)
- (br-real-build-alists br-sys-search-dirs)
- (setq br-sys-paths-htable (hash-make br-paths-alist))
- (if (interactive-p) (br-env-save))
- (message "Building System paths...Done")))
-
- (defun br-build-children-htable ()
- (interactive)
- (setq br-children-htable (br-real-build-children-htable))
- (if (interactive-p) (br-env-save)))
-
- (defun br-build-parents-htable ()
- (interactive)
- (br-build-sys-parents-htable)
- (br-build-lib-parents-htable)
- ;; Make System entries override Library entries which they duplicate, since
- ;; this is generally more desireable than merging the two.
- (let ((hash-merge-values-function (function (lambda (val1 val2) val1))))
- (setq br-parents-htable (hash-merge br-sys-parents-htable
- br-lib-parents-htable)))
- (if (interactive-p) (br-env-save)))
-
- (defun br-build-paths-htable ()
- (interactive)
- (br-build-sys-paths-htable)
- (br-build-lib-paths-htable)
- (setq br-paths-htable (hash-merge br-sys-paths-htable br-lib-paths-htable))
- (if (interactive-p) (br-env-save)))
-
- (defun br-class-defined-p (class)
- "Return path for CLASS if defined in current Environment.
- Otherwise, display error and return nil."
- (or (br-class-path class)
- (progn
- (beep)
- (message
- (if (br-class-in-table-p class)
- (format "(OO-Browser): Class '%s' referenced but not defined in Environment."
- class)
- (format "(OO-Browser): Class '%s' not defined in Environment."
- class)))
- nil)))
-
- (defun br-check-for-class (cl &optional other-win)
- "Try to display class CL.
- Display message and return nil if unsucessful."
- (if (br-class-in-table-p cl)
- (or (br-find-class cl nil other-win)
- (progn
- (beep)
- (message
- (format "(OO-Browser): Class '%s' referenced but not defined in Environment."
- cl))
- t))))
-
- (defun br-get-children (class-name)
- "Return list of children of CLASS-NAME from child lookup table.
- Those which directly inherit from CLASS-NAME."
- (setq class-name (and class-name (br-set-case class-name)))
- (br-set-of-strings (hash-get class-name (br-get-children-htable))))
-
- (defun br-get-parents (class-name)
- "Return list of parents of CLASS-NAME from parent lookup table.
- Those from which CLASS-NAME directly inherits."
- (setq class-name (and class-name (br-set-case class-name)))
- (br-set-of-strings (hash-get class-name (br-get-parents-htable))))
-
- (defun br-get-children-htable ()
- "Loads or builds 'br-children-htable' if necessary and returns value."
- (br-get-htable "children"))
-
- (defun br-get-paths-htable ()
- "Loads or builds 'br-paths-htable' if necessary and returns value."
- (br-get-htable "paths"))
-
- (defun br-get-parents-htable ()
- "Loads or builds 'br-parents-htable' if necessary and returns value."
- (br-get-htable "parents"))
-
- (defun br-get-children-from-parents-htable (class-name)
- "Return list of children of CLASS-NAME.
- Those that directly inherit from CLASS-NAME. Use parent lookup table to
- compute children."
- (setq class-name (and class-name (br-set-case class-name)))
- (delq nil (hash-map (function (lambda (cns)
- (if (and (consp cns)
- (br-member class-name (car cns)))
- (cdr cns))))
- (br-get-parents-htable))))
-
- (defun br-get-htable (htable-type)
- "Return hash table corresponding to string, HTABLE-TYPE. When necessary,
- load the hash table from a file or build it."
- (let* ((htable-symbol (intern-soft (concat "br-" htable-type "-htable")))
- (htable-specific (if (string-match "sys\\|lib" htable-type)
- (substring htable-type (match-beginning 0)
- (match-end 0))))
- changed-types non-matched-types)
- (if (equal htable-type "children")
- nil
- (if (and (or (not htable-specific) (equal htable-specific "lib"))
- (or (null (symbol-value htable-symbol))
- (not (equal br-lib-prev-search-dirs br-lib-search-dirs))))
- (setq changed-types '("lib")))
- (if (and (or (not htable-specific) (equal htable-specific "sys"))
- (or (null (symbol-value htable-symbol))
- (not (equal br-sys-prev-search-dirs br-sys-search-dirs))))
- (setq changed-types (cons "sys" changed-types))))
- (if (and (or br-lib-search-dirs br-sys-search-dirs)
- (or changed-types (null (symbol-value htable-symbol)))
- (not (boundp 'br-loaded)))
- ;;
- ;; Then need to load or rebuild htable.
- ;;
- (progn (if (and br-env-file
- (file-exists-p br-env-file))
- ;;
- ;; Try to load from file.
- ;;
- (progn (setq non-matched-types
- (br-env-load-matching-htables changed-types))
- (if non-matched-types
- (setq changed-types
- (delq nil (mapcar
- (function
- (lambda (type)
- (if (br-member type
- changed-types)
- type)))
- non-matched-types)))
- (and changed-types (br-env-set-htables))
- (setq changed-types nil)
- (cond (htable-specific)
- ((equal htable-type "children")
- (progn (goto-char (point-min))
- (setq br-children-htable
- (cdr (br-env-file-sym-val
- "br-children-htable")))))
- ((let ((suffix
- (concat "-" htable-type "-htable"))
- (hash-merge-values-function
- 'hash-merge-values))
- ;; Make System entries override
- ;; Library entries which they
- ;; duplicate, if this is the parents
- ;; htable.
- (if (equal htable-type "parents")
- (setq hash-merge-values-function
- (function
- (lambda (val1 val2) val1))))
- (set htable-symbol
- (hash-merge
- (symbol-value
- (intern-soft
- (concat "br-sys" suffix)))
- (symbol-value
- (intern-soft
- (concat
- "br-lib" suffix)))
- ))))))))
- ;; Rebuild any lists that need to be changed.
- (mapcar
- (function
- (lambda (type-str)
- (let ((suffix (concat "-" htable-type "-htable")))
- (funcall (intern-soft
- (concat "br-build-" type-str suffix)))
- (and htable-specific
- ;; Make System entries override Library entries
- ;; which they duplicate, if this is the parents
- ;; htable.
- (let ((hash-merge-values-function
- 'hash-merge-values))
- (if (equal htable-type "parents")
- (setq hash-merge-values-function
- (function (lambda (val1 val2) val1))))
- (set htable-symbol
- (hash-merge (symbol-value
- (intern-soft
- (concat "br-sys" suffix)))
- (symbol-value
- (intern-soft
- (concat "br-lib" suffix)))
- )))))))
- changed-types)
- (if (and changed-types br-env-file)
- (br-env-save))
- (let ((buf (get-file-buffer br-env-file)))
- (and buf (kill-buffer buf)))
- ))
- ;; Return non-nil hash table.
- (if (null (symbol-value htable-symbol))
- (set htable-symbol (hash-make 0))
- (symbol-value htable-symbol))))
-
- (defun br-get-top-class-list (htable-type-str)
- "Returns unordered list of top-level classes.
- Those that do not explicitly inherit from any other classes. Obtains classes
- from list denoted by HTABLE-TYPE-STR whose values may be:
- \"parents\", \"sys-parents\", or \"lib-parents\"."
- (delq nil (hash-map (function
- (lambda (cns)
- (and (null (car cns)) (cdr cns))))
- (br-get-htable htable-type-str))))
-
- (defun br-get-top-classes ()
- "Returns lexicographically ordered list of top-level classes.
- Those that do not explicitly inherit from any other classes."
- (br-get-top-class-list "parents"))
-
- (defun br-get-lib-top-classes ()
- "Returns lexicographically ordered list of top-level Library classes.
- Those that do not explicitly inherit from any other classes."
- (br-get-top-class-list "lib-parents"))
-
- (defun br-get-sys-top-classes ()
- "Returns lexicographically ordered list of top-level System classes.
- Those that do not explicitly inherit from any other classes."
- (br-get-top-class-list "sys-parents"))
-
- (defun br-has-children-p (class-name)
- "Return non-nil iff CLASS-NAME has at least one child.
- That is a class that directly inherits from CLASS-NAME."
- (setq class-name (and class-name (br-set-case class-name)))
- (hash-get class-name (br-get-children-htable)))
-
- (defun br-has-parents-p (class-name)
- "Return non-nil iff CLASS-NAME has at least one parent.
- That is a class which is a direct ancestor of CLASS-NAME."
- (setq class-name (and class-name (br-set-case class-name)))
- (hash-get class-name (br-get-parents-htable)))
-
- (defun br-get-process-group (group max)
- "Return list of all active processes in GROUP (a string).
- MAX is max number of processes to check for."
- (let ((i 0)
- (proc-list))
- (while (<= i max)
- (setq i (1+ i)
- proc-list (cons (get-process (concat group (int-to-string i)))
- proc-list)))
- (delq nil proc-list)))
-
-
- (defun br-kill-process-group (group max group-descrip)
- "Optionally question user, then kill all subprocesses in named GROUP.
- Processes are numbered one to MAX, some of which may have been killed already.
- User is prompted with a string containing GROUP-DESCRIP, only if non-nil.
- Return list of processes killed."
- (let ((proc-list (br-get-process-group group max)))
- (if proc-list
- (if (or (null group-descrip)
- (y-or-n-p (concat "Terminate all " group-descrip "? ")))
- (prog1 (mapcar 'delete-process proc-list)
- (message ""))))))
-
- (defun br-real-add-class (lib-table-p class-name class-path &optional replace)
- "Add or replace class in current Environment.
- If LIB-TABLE-P is non-nil, add to Library Environment, otherwise add to
- System Environment. Add class CLASS-NAME located in CLASS-PATH to
- Environment. If CLASS-PATH is nil, use current buffer file as CLASS-PATH.
- Optional REPLACE non-nil means replace already existing class. Does not
- update children lookup table."
- (or class-path (setq class-path buffer-file-name))
- (let ((par-list)
- (paths-key class-path)
- (func)
- (class class-name))
- (if replace
- (setq func 'hash-replace
- class-name (br-first-match
- (concat "^" (regexp-quote class-name) "$")
- (hash-get paths-key
- (if lib-table-p
- (br-get-htable "lib-paths")
- (br-get-htable "sys-paths"))))
- par-list (br-get-parents-from-source class-path class-name))
- (setq func 'hash-add))
- ;; Signal error if class-name is invalid.
- (if (null class-name)
- (if replace
- (error "(br-real-add-class): '%s' not found in %s classes, so cannot replace it."
- class (if lib-table-p "Library" "System"))
- (error
- "(br-real-add-class): Attempt to add null class to %s classes."
- (if lib-table-p "Library" "System"))))
- ;;
- (mapcar
- (function
- (lambda (type)
- (let ((par-htable (br-get-htable (concat type "parents")))
- (path-htable (br-get-htable (concat type "paths"))))
- (funcall func par-list class-name par-htable)
- (br-add-to-paths-htable class-name paths-key path-htable))))
- (list (if lib-table-p "lib-" "sys-") ""))))
-
- (defun br-real-delete-class (class-name)
- "Delete class CLASS-NAME from current Environment.
- No error occurs if the class is undefined in the Environment."
- (require 'set)
- (let ((paths-key (br-class-path class-name))
- htable)
- (setq class-name
- (br-first-match (concat "^" class-name "$")
- (hash-get paths-key (br-get-paths-htable))))
- (if class-name
- (progn (mapcar
- (function
- (lambda (type)
- (hash-delete class-name
- (br-get-htable (concat type "parents")))
- (setq htable (br-get-htable (concat type "paths")))
- (if (hash-key-p paths-key htable)
- (hash-replace
- (set:remove
- class-name
- (hash-get paths-key htable))
- paths-key htable))))
- '("lib-" "sys-" ""))
- (hash-delete class-name (br-get-children-htable))))))
-
- (defun br-real-build-children-htable ()
- "Build and return Environment parent to child lookup table."
- (let* ((par-ht (br-get-parents-htable))
- (htable (hash-make (hash-size par-ht)))
- (child))
- (hash-map
- (function
- (lambda (par-child-cns)
- (setq child (cdr par-child-cns))
- (mapcar
- (function
- (lambda (parent)
- (hash-add
- (cons child (hash-get parent htable))
- parent htable)))
- (car par-child-cns))))
- par-ht)
- (hash-map (function
- (lambda (children-parent-cns)
- (hash-replace (sort (car children-parent-cns) 'string-lessp)
- (cdr children-parent-cns) htable)))
- htable)
- htable))
-
- (defun br-real-get-children (class-name)
- "Return list of child classes of CLASS-NAME listed in Environment parents htable."
- (delq nil (hash-map
- (function
- (lambda (cns)
- (if (and (consp cns)
- (br-member class-name (car cns)))
- (cdr cns))))
- (br-get-parents-htable))))
-
- (defun br-real-build-alists (search-dirs)
- "Use SEARCH-DIRS to build 'br-paths-alist' and 'br-parents-alist'."
- (setq br-paths-alist nil br-parents-alist nil)
- (br-feature-tags-init)
- (br-real-build-al search-dirs)
- (setq br-paths-alist br-paths-alist)
- (br-feature-tags-save)
- br-paths-alist)
-
- (defvar br-paths-alist nil)
- (defvar br-parents-alist nil)
-
- (defun br-skip-dir-p (dir-name)
- "Returns non-nil iff DIR-NAME is matched by a member of 'br-skip-dir-regexps'."
- (delq nil
- (mapcar (function
- (lambda (dir-regexp)
- (string-match dir-regexp
- (file-name-nondirectory
- (directory-file-name dir-name)))))
- br-skip-dir-regexps)))
-
- ;;; If abbreviate-file-name is not defined, just make it return the same
- ;;; string.
- (or (fboundp 'abbreviate-file-name)
- (fset 'abbreviate-file-name 'identity))
-
- (defun br-real-build-al (search-dirs)
- "Descend SEARCH-DIRS and build 'br-paths-alist' and 'br-parents-alist'.
- Does not initialize 'br-paths-alist' or 'br-parents-alist' to nil."
- (let ((inhibit-local-variables nil)
- (enable-local-variables t)
- (files)
- ;; These are used in the 'br-search-directory' function.
- classes parents paths-parents-cons)
- (mapcar
- (function
- (lambda (dir)
- (if (or (null dir) (equal dir "")
- (progn (setq dir (file-name-as-directory dir))
- (br-skip-dir-p dir)))
- nil
- (setq files (if (and (file-directory-p dir)
- (file-readable-p dir))
- (directory-files dir t br-file-dir-regexp)))
- ;; Extract all class/parent names in all source files in a
- ;; particular directory.
- (if files
- (progn (message "Scanning %s in %s ..."
- (file-name-nondirectory
- (directory-file-name dir))
- (abbreviate-file-name
- (or (file-name-directory
- (directory-file-name dir))
- "")))
- (br-search-directory dir files)
- ;; Call same function on all the directories below
- ;; this one.
- (br-real-build-al
- (mapcar (function (lambda (f)
- (if (file-directory-p f) f)))
- files)))))))
- search-dirs)))
-
- (defun br-search-directory (dir files)
- (mapcar
- (function
- (lambda (f)
- (setq paths-parents-cons
- (let ((br-view-file-function 'br-insert-file-contents))
- (message "Scanning %s in %s ..."
- (file-name-nondirectory f)
- (abbreviate-file-name
- (or (file-name-directory f) default-directory)))
- (br-get-classes-from-source f nil t))
- classes (car paths-parents-cons)
- parents (cdr paths-parents-cons)
- br-paths-alist (if classes
- (cons (cons (sort classes 'string-lessp) f)
- br-paths-alist)
- br-paths-alist)
- br-parents-alist (if parents
- (append br-parents-alist
- parents)
- br-parents-alist))))
- ;; List of files potentially containing classes.
- (delq nil
- (mapcar
- (function
- (lambda (f)
- (and (string-match br-src-file-regexp f)
- (not (file-directory-p f))
- f)))
- files))))
-
- (defun br-real-build-parents-alist (paths-htable)
- "Build and return 'br-parents-alist' of (parent-list . class) elements built from PATHS-HTABLE.
- Initializes 'br-parents-alist' to nil."
- (let ((inhibit-local-variables nil)
- (enable-local-variables t))
- (setq br-parents-alist nil)
- (mapcar
- (function
- (lambda (cl-dir-list)
- (mapcar (function
- (lambda (class-dir-cons)
- (let ((dir (cdr class-dir-cons)))
- (mapcar
- (function
- (lambda (class-name)
- (setq br-parents-alist
- (cons (cons (br-get-parents-from-source
- dir class-name)
- class-name)
- br-parents-alist))))
- (car class-dir-cons)))))
- cl-dir-list)))
- paths-htable)
- br-parents-alist))
-
- (defun br-set-lang-env (func sym-list val)
- "Use FUNC to set each element in SYM-LIST.
- If VAL is non-nil, set 'br' element to value of current OO-Browser language
- element with the same name, otherwise set to symbol."
- (let ((br) (lang))
- (mapcar (function
- (lambda (nm)
- (setq br (intern (concat "br-" nm))
- lang (intern-soft (concat br-lang-prefix nm)))
- (funcall func br (if val
- (symbol-value lang)
- (or lang 'br-undefined-function)))))
- sym-list)))
-
- (defun br-undefined-function (&rest ignore)
- (interactive)
- (error "(OO-Browser): That command is not supported for this language."))
-
- (defun br-setup-functions ()
- "Initialize appropriate function pointers for the current browser language."
- (br-set-lang-env 'fset
- '("class-definition-regexp" "class-list-filter"
- "get-classes-from-source" "get-parents-from-source"
- "insert-class-info" "set-case" "set-case-type"
- "to-class-end" "to-comments-begin" "to-definition"
- "select-path"
-
- "feature-implementors" "feature-locate-p"
- "feature-name-to-regexp" "feature-signature-to-name"
- "feature-signature-to-regexp" "feature-tag-class"
- "feature-tree-command-p"
- "list-categories" "list-features" "list-protocols"
- "view-friend" "view-protocol")
- nil))
-
- (defun br-setup-constants ()
- "Initialize appropriate constant values for the current browser language."
- ;; Clear language-dependent hooks.
- (setq br-after-build-lib-hook nil
- br-after-build-sys-hook nil)
- ;; Set language-specific constants.
- (br-set-lang-env 'set '("class-def-regexp" "env-file"
- "file-dir-regexp" "identifier" "identifier-chars"
- "src-file-regexp" "narrow-view-to-class"
- "type-tag-separator")
- t))
-
- ;;; ************************************************************************
- ;;; Private variables
- ;;; ************************************************************************
-
- (defvar br-lib-search-dirs nil
- "List of directories below which library dirs and source files are found.
- A library is a stable group of classes. Value is language-specific.")
- (defvar br-sys-search-dirs nil
- "List of directories below which system dirs and source files are found.
- A system is a group of classes that are likely to change. Value is
- language-specific.")
-
- (defvar br-lib-prev-search-dirs nil
- "Used to check if 'br-lib-paths-htable' must be regenerated.
- Value is language-specific.")
- (defvar br-sys-prev-search-dirs nil
- "Used to check if 'br-sys-paths-htable' must be regenerated.
- Value is language-specific.")
-
- (defun br-find-file (filename &optional other-win read-only)
- "Edit file FILENAME.
- Switch to a buffer visiting file FILENAME, creating one if none
- already exists. Optional OTHER-WIN means show in other window.
- Optional READ-ONLY means make buffer read-only."
- (interactive "FFind file: ")
- (funcall (if other-win 'switch-to-buffer-other-window 'switch-to-buffer)
- (find-file-noselect filename))
- (and read-only (setq buffer-read-only t)))
-
- (defun br-find-file-read-only (filename &optional other-win)
- "Display file FILENAME read-only.
- Switch to a buffer visiting file FILENAME, creating one if none
- already exists. Optional OTHER-WIN means show in other window."
- (interactive "FFind file read-only: ")
- (br-find-file filename other-win t))
-
- (defvar br-edit-file-function 'br-find-file
- "*Function to call to edit a class file within the browser.")
- (defvar br-view-file-function
- (if (eq br-edit-file-function 'br-find-file)
- 'br-find-file-read-only
- br-edit-file-function)
- "*Function to call to view a class file within the browser.")
-
- (defvar br-find-file-noselect-function 'find-file-noselect
- "Function to call to load a browser file but not select it.
- The function must return the buffer containing the file's contents.")
-
- (defvar *br-tmp-buffer* "*oobr-tmp*"
- "Name of temporary buffer used by the OO-Browser for parsing source files.")
-
- (defun br-insert-file-contents (filename)
- "Insert FILENAME contents into a temporary buffer and select buffer.
- Does not run any find-file hooks. Marks buffer read-only to prevent
- any accidental editing.
-
- Set 'br-view-file-function' to this function when parsing OO-Browser source
- files for fast loading of many files."
- (let ((buf (get-buffer-create *br-tmp-buffer*)))
- (switch-to-buffer buf)
- (buffer-disable-undo buf)
- (setq buffer-read-only nil)
- (erase-buffer)
- (insert-file-contents filename t)))
-
- (defvar br-lang-prefix nil
- "Prefix string that starts language-specific symbol names.")
-
- (defvar br-children-htable nil
- "Htable whose elements are of the form: (LIST-OF-CHILD-CLASSES . CLASS-NAME).
- Used to traverse class inheritance graph. 'br-build-children-htable' builds
- this list. Value is language-specific.")
- (defvar br-parents-htable nil
- "Htable whose elements are of the form: (LIST-OF-PARENT-CLASSES . CLASS-NAME).
- Used to traverse class inheritance graph. 'br-build-parents-htable' builds
- this list. Value is language-specific.")
- (defvar br-paths-htable nil
- "Htable whose elements are of the form: (LIST-OF-CLASS-NAMES . DIRECTORY).
- DIRECTORY gives the location of classes found in LIST-OF-CLASS-NAMES.
- 'br-build-paths-htable' builds this list. Value is language-specific.")
-
- (defvar br-lib-parents-htable nil
- "Htable whose elements are of the form: (LIST-OF-PARENT-CLASSES . CLASS-NAME).
- Only classes from stable software libraries are used to build the list.
- Value is language-specific.")
- (defvar br-lib-paths-htable nil
- "Htable whose elements are of the form: (LIST-OF-CLASS-NAMES . DIRECTORY).
- DIRECTORY gives the location of classes found in LIST-OF-CLASS-NAMES.
- Only classes from stable software libraries are used to build the list.
- Value is language-specific.")
-
- (defvar br-sys-parents-htable nil
- "Htable whose elements are of the form: (LIST-OF-PARENT-CLASSES . CLASS-NAME).
- Only classes from systems that are likely to change are used to build the
- list. Value is language-specific.")
- (defvar br-sys-paths-htable nil
- "Htable whose elements are of the form: (LIST-OF-CLASS-NAMES . DIRECTORY).
- DIRECTORY gives the location of classes found in LIST-OF-CLASS-NAMES.
- Only classes from systems that are likely to change are used to build the
- list. Value is language-specific.")
-
- (defvar br-file-dir-regexp nil
- "Regexp that ignores extraneous, non-source files and directories.")
-
- (defvar br-src-file-regexp nil
- "Regular expression matching a unique part of source file names and no others.")
-
- (defvar br-narrow-view-to-class nil
- "Non-nil means narrow buffer to just the matching class definition when displayed.
- Don't set this, use the language specific variable instead.")
-
- (provide 'br-lib)
-