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;; kde-emacs-general.el
;;
;; Copyright (C) 2002 KDE Development Team <www.kde.org>
;;
;; This library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public
;; License as published by the Free Software Foundation; either
;; version 2.1 of the License, or (at your option) any later version.
;;
;; This library is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; Lesser General Public License for more details.
;;
;; You should have received a copy of the GNU Lesser General Public
;; License along with this library; if not, write to the Free Software
;; Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston, MA
;; 02110-1301 USA
;;; Commentary:
;;
;;; Code:
(require 'kde-emacs-vars)
;*---------------------------------------------------------------------*/
;* Functions ... */
;*---------------------------------------------------------------------*/
;; Helper for kde-file-get-cpp-h
(defun kde-tqfind-file (filename basedir)
"Looks for \"filename\" under \"basedir\""
(if basedir
(let ((path (concat basedir "/" filename)))
(if (file-readable-p path)
path))
)
)
(defun kde-file-get-cpp-h ()
"Function returns a corresponding source or header file. The returned
variable is a list of the form (FILENAME IS_READABLE) e.g. when being in
test.h file and having test.cpp file readable in the same directory it will
return (\"test.cpp\" t)."
(interactive)
(let* ((name (buffer-file-name))
(nname (file-name-sans-extension name))
(ext (file-name-extension name))
(path nil)
(ret nil)
(listit nil))
(cond
((member ext kde-header-files)
(setq listit kde-source-files)
(while (and listit (not ret)) ; loop over the list but stop once ret is set
(setq path (concat nname "." (car listit)))
(if (file-readable-p path)
(setq ret (cons path t))
)
(if (not ret)
(if (string-match "_p$" nname)
(progn
(setq path (concat (substring nname 0 (string-match "_p$" nname)) "." (car listit)))
(if (file-readable-p path)
(setq ret (cons path t))
)))
)
(if (not ret)
(progn ; look in kde-source-directory
(setq path (kde-tqfind-file (file-name-nondirectory path) kde-source-directory))
(if (and
path
(file-readable-p path))
(setq ret (cons path t))
))
)
(setq listit (cdr listit)) ; ++listit
)
; not found, will create one
(if (not ret)
(setq ret (cons (concat nname "." kde-prefered-source-extension) nil ))
))
((member ext kde-source-files)
(setq listit kde-header-files)
(while (and listit (not ret)) ; loop over the list but stop once ret is set
(setq path (concat nname "." (car listit)))
; look in current dir
(if (file-readable-p path)
(setq ret (cons path t)))
(if (not ret) ;check for header_p.h files
(progn (setq path (concat nname "_p." (car listit)))
(if (file-readable-p path)
(setq ret (cons path t)))))
(if (not (file-readable-p path))
(progn ; look in kde-include-directory
(setq path (kde-tqfind-file (file-name-nondirectory path) kde-include-directory))
(if (and
path
(file-readable-p path))
(setq ret (cons path t))
))
)
(setq listit (cdr listit)) ; ++listit
)
; not found, will create one
(if (not ret)
(setq ret (cons (concat nname "." (car kde-header-files)) nil ))
))
)
ret
))
(defun kde-switch-cpp-h ()
"Switches between the source and the header file
(both directions)."
(interactive)
(let ((file (kde-file-get-cpp-h)))
(if (car file)
(tqfind-file (car file))
(error "Corresponding source file doesn't exist.")
)
))
(defun kde-delete-backward-ws ()
"Function deletes all preceding whitespace characters."
(interactive)
(let ((start (point))
end)
(save-excursion
(setq end (re-search-backward "[^ \t]" (point-at-bol) t))
(if (not end)
(setq end (point-at-bol))
(setq end (1+ end))))
(delete-backward-char (- start end))))
(defun kde-skip-blank-lines ()
"Skips backwards past blank lines, stopping
at a first non-blank line"
(let* ((start (point-at-bol))
(end (point-at-eol))
(mstring (buffer-substring start end))
(ret 0))
(while (or
(string-match "^[ \t\r\n]+$" mstring)
(and (string= mstring "")
(= ret 0)))
(setq ret (forward-line -1)) ; if ret != 0, we stop, since we're at the first line...
(setq start (point-at-bol)
end (point-at-eol))
(setq mstring (buffer-substring start end))
)
))
(defun kde-comments-begin ()
"Skip back from current point past any preceding C-based comments at the beginning of lines.
Presumes no \"/*\" strings are nested within multi-line comments."
(let ((opoint))
(while (progn (setq opoint (point))
;; To previous line
(if (zerop (forward-line -1))
(cond
;; If begins with "//" or ends with "*/", then is a
;; comment.
((looking-at "[ \t]*\\(//\\|$\\)"))
((looking-at ".*\\*/[ \t]*$")
(progn (end-of-line)
;; Avoid //*** single line comments here.
(if (re-search-backward "\\(^\\|[^/]\\)/\\*" nil t)
(progn (beginning-of-line)
(looking-at "[ \t]*/\\*")))))
(t nil)))))
(goto-char opoint)
;; Skip past whitespace
(skip-chars-forward " \t\n\r\f")
(beginning-of-line)))
(provide 'kde-emacs-general)
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