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;;;; -*-emacs-lisp-*-
;;;;---------------------------------------------------------------------------
;;;; EMACS interface for send-pr (by Heinz G. Seidl, hgs@cygnus.com)
;;;; Slightly hacked by Brendan Kehoe (brendan@cygnus.com).
;;;;
;;;; This file is part of the Problem Report Management System (GNATS)
;;;; Copyright 1992, 1993 Cygnus Support
;;;;
;;;; This program is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 2 of the License, or (at your option) any later version.
;;;;
;;;; This program 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
;;;; General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Library General Public
;;;; License along with this program; if not, write to the Free
;;;; Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
;;;;
;;;;---------------------------------------------------------------------------
;;;;
;;;; This file contains the EMACS interface to the Problem Report Management
;;;; System (GNATS):
;;;;
;;;; - The `send-pr' command and the `send-pr-mode' for sending
;;;; Problem Reports (PRs).
;;;;
;;;; For more information about how to send a PR see send-pr(1).
;;;;
;;;;---------------------------------------------------------------------------
;;;;
;;;; Configuration: the symbol `DEFAULT-RELEASE' can be replaced by
;;;; site/release specific strings during the configuration/installation
;;;; process.
;;;;
;;;; Install this file in your EMACS library directory.
;;;;
;;;;---------------------------------------------------------------------------
(provide 'send-pr)
;;;;---------------------------------------------------------------------------
;;;; Customization: put the following forms into your default.el file
;;;; (or into your .emacs)
;;;;---------------------------------------------------------------------------
;(autoload 'send-pr-mode "send-pr"
; "Major mode for sending problem reports." t)
;(autoload 'send-pr "send-pr"
; "Command to create and send a problem report." t)
;;;;---------------------------------------------------------------------------
;;;; End of Customization Section
;;;;---------------------------------------------------------------------------
(autoload 'server-buffer-done "server")
(defvar server-buffer-clients nil)
(defvar mail-self-blind nil)
(defvar mail-default-reply-to nil)
(defconst send-pr::version "xVERSIONx")
(defvar gnats:root "xGNATS_ROOTx"
"*The top of the tree containing the GNATS database.")
;;;;---------------------------------------------------------------------------
;;;; hooks
;;;;---------------------------------------------------------------------------
(defvar text-mode-hook nil) ; we define it here in case it's not defined
(defvar send-pr-mode-hook text-mode-hook "Called when send-pr is invoked.")
;;;;---------------------------------------------------------------------------
;;;; Domains and default values for (some of) the Problem Report fields;
;;;; constants and definitions.
;;;;---------------------------------------------------------------------------
(defconst gnats::emacs-19p
(not (or (and (boundp 'epoch::version) epoch::version)
(string-lessp emacs-version "19")))
"Is this emacs v19?")
;;; This has to be here rather than at the bottom of this file with
;;; the other utility functions because it is used by
;;; gnats::get-config, which is called when send-pr.el is being
;;; loaded (see the "defconst" below), before the whole file has been
;;; loaded.
(defun gnats::find-safe-default-directory (&optional buffer)
"If the directory referred to by `default-directory' for the current
buffer (or for optional argument BUFFER) does not exist, set it to the home
directory of the current user if that exists, or to `/'.
Returns the final value of default-directory in the buffer."
(let ((homedir (expand-file-name "~/")))
(save-excursion
(if buffer (set-buffer buffer))
(if (not (file-exists-p default-directory))
(if (file-exists-p homedir)
(setq default-directory homedir)
(setq default-directory "/")))
default-directory)))
;;; These may be changed during configuration/installation or by the individual
;;; user in his/her .emacs file.
;;;
(defun gnats::get-config (var)
(let ((shell-file-name "/bin/sh")
(buf (generate-new-buffer " *GNATS config*"))
ret)
(save-excursion
(set-buffer buf)
(shell-command-on-region
(point-min) (point-max)
(concat ". " gnats:root "/gnats-adm/config; echo $" var ) t)
(goto-char (point-min))
; We have to use get-buffer, since shell-command-on-region will wipe
; out the buffer if there's no output from the command.
(if (or (not (get-buffer "*Shell Command Output*"))
(looking-at "/bin/sh:\\|\.:\\|\n"))
(setq ret nil)
(setq ret (buffer-substring (point-min) (- (point-max) 1)))))
(kill-buffer buf)
ret))
;; const because it must match the script's value
(defconst send-pr:datadir (or (gnats::get-config "DATADIR") "xDATADIRx")
"*Where the `gnats' subdirectory containing category lists lives.")
(defvar send-pr::sites nil
"List of GNATS support sites; computed at runtime.")
(defvar send-pr:default-site
(or (gnats::get-config "GNATS_SITE") "xGNATS_SITEx")
"Default site to send bugs to.")
(defvar send-pr:::site send-pr:default-site
"The site to which a problem report is currently being submitted, or NIL
if using the default site (buffer local).")
(defvar send-pr:::categories nil
"Buffer local list of available categories, derived at runtime from
send-pr:::site and send-pr::category-alist.")
(defvar send-pr::category-alist nil
"Alist of GNATS support sites and the categories supported at each; computed
at runtime.")
;;; Ideally we would get all the following values from a central database
;;; during runtime instead of having them here in the code.
;;;
(defconst send-pr::fields
(` (("Category" send-pr::set-categories
(, (or (gnats::get-config "DEFAULT_CATEGORY") nil)) enum)
("Class" (("sw-bug") ("doc-bug") ("change-request") ("support"))
(, (or (gnats::get-config "DEFAULT_CLASS") 0)) enum)
("Confidential" (("yes") ("no"))
(, (or (gnats::get-config "DEFAULT_CONFIDENTIAL") 1)) enum)
("Severity" (("non-critical") ("serious") ("critical"))
(, (or (gnats::get-config "DEFAULT_SEVERITY") 1)) enum)
("Priority" (("low") ("medium") ("high"))
(, (or (gnats::get-config "DEFAULT_PRIORITY") 1)) enum)
("Release" nil
(, (or (gnats::get-config "DEFAULT_RELEASE") "xDEFAULT_RELEASEx"))
text)
("Submitter-Id" nil
(, (or (gnats::get-config "SUBMITTER") "xSUBMITTERx")) text)
("Synopsis" nil nil text
(lambda (a b c) (gnats::set-mail-field "Subject" c)))))
"AList, keyed on the name of the field, of:
1) The field name.
2) The list of completions. This can be a list, a function to call, or nil.
3) The default value.
4) The type of the field.
5) A sub-function to call when changed.")
(defvar gnats::fields nil)
(defmacro gnats::push (i l)
(` (setq (, l) (cons (,@ (list i l))))))
(defun send-pr::set-categories (&optional arg)
"Get the list of categories for the current site out of
send-pr::category-alist if there or from send-pr if not. With arg, force
update."
;;
(let ((entry (assoc send-pr:::site send-pr::category-alist)))
(or (and entry (null arg))
(let ((oldpr (getenv "GNATS_ROOT")) cats)
(send-pr::set-sites arg)
(setenv "GNATS_ROOT" gnats:root)
(setq cats (gnats::get-value-from-shell
"send-pr" "-CL" send-pr:::site))
(setenv "GNATS_ROOT" oldpr)
(if entry (setcdr entry cats)
(setq entry (cons send-pr:::site cats))
(gnats::push entry send-pr::category-alist))))
(setq send-pr:::categories (cdr entry))))
(defun send-pr::set-sites (&optional arg)
"Get the list of sites (by listing the contents of DATADIR/gnats) and assign
it to send-pr::sites. With arg, force update."
(or (and (null arg) send-pr::sites)
(progn
(setq send-pr::sites nil)
(mapcar
(function
(lambda (file)
(or (memq t (mapcar (function (lambda (x) (string= x file)))
'("." ".." "pr-edit" "pr-addr")))
(not (file-readable-p file))
(gnats::push (list (file-name-nondirectory file))
send-pr::sites))))
(directory-files (format "%s/gnats" send-pr:datadir) t))
(setq send-pr::sites (reverse send-pr::sites)))))
(defconst send-pr::pr-buffer-name "*send-pr*"
"Name of the temporary buffer, where the problem report gets composed.")
(defconst send-pr::err-buffer-name "*send-pr-error*"
"Name of the temporary buffer, where send-pr error messages appear.")
(defvar send-pr:::err-buffer nil
"The error buffer used by the current PR buffer.")
(defvar send-pr:::spawn-to-send nil
"Whether or not send-pr-mode should spawn a send-pr process to send the PR.")
(defconst gnats::indent 16 "Indent for formatting the value.")
;;;;---------------------------------------------------------------------------
;;;; `send-pr' - command for creating and sending of problem reports
;;;;---------------------------------------------------------------------------
(fset 'send-pr 'send-pr:send-pr)
(defun send-pr:send-pr (&optional site)
"Create a buffer and read in the result of `send-pr -P'.
When finished with editing the problem report use \\[send-pr:submit-pr]
to send the PR with `send-pr -b -f -'."
;;
(interactive
(if current-prefix-arg
(list (completing-read "Site: " (send-pr::set-sites 'recheck) nil t
send-pr:default-site))))
(or site (setq site send-pr:default-site))
(let ((buf (get-buffer send-pr::pr-buffer-name)))
(if (or (not buf)
(progn (switch-to-buffer buf)
(cond ((or (not (buffer-modified-p buf))
(y-or-n-p "Erase previous problem report? "))
(erase-buffer) t)
(t nil))))
(send-pr::start-up site))))
(defun send-pr::start-up (site)
(switch-to-buffer (get-buffer-create send-pr::pr-buffer-name))
(setq default-directory (expand-file-name "~/"))
(auto-save-mode auto-save-default)
(let ((oldpr (getenv "GNATS_ROOT"))
(case-fold-search nil))
(setenv "GNATS_ROOT" gnats:root)
(send-pr::insert-template site)
(setenv "GNATS_ROOT" oldpr)
(goto-char (point-min))
(if (looking-at "send-pr:")
(cond ((looking-at "send-pr: .* does not have a categories list")
(setq send-pr::sites nil)
(error "send-pr: the GNATS site %s does not have a categories list" site))
(t (error (buffer-substring (point-min) (point-max)))))
(save-excursion
;; Clear cruft inserted by bdamaged .cshrcs
(goto-char 1)
(re-search-forward "^SEND-PR:")
(delete-region 1 (match-beginning 0)))))
(set-buffer-modified-p nil)
(send-pr:send-pr-mode)
(setq send-pr:::site site)
(setq send-pr:::spawn-to-send t)
(send-pr::set-categories)
(if (null send-pr:::categories)
(progn
(and send-pr:::err-buffer (kill-buffer send-pr:::err-buffer))
(kill-buffer nil)
(message "send-pr: no categories found"))
(if (eq mail-default-reply-to t)
(setq mail-default-reply-to (getenv "REPLYTO")))
(and mail-default-reply-to
(gnats::set-mail-field "Reply-To" mail-default-reply-to))
(and mail-self-blind
(gnats::set-mail-field "BCC" (user-login-name)))
(mapcar 'send-pr::maybe-change-field send-pr::fields)
(gnats::position-on-field "Description")
(message (substitute-command-keys
"To send the problem report use: \\[send-pr:submit-pr]"))))
(defvar send-pr::template-alist nil
"An alist containing the output of send-pr -P <sitename> for various sites.")
(defun send-pr::insert-template (site)
(let ((elt (assoc site send-pr::template-alist)))
(if elt
(save-excursion (insert (cdr elt)))
(shell-command (concat "send-pr -P " site) t)
(save-excursion
(setq send-pr::template-alist
(cons (cons site (buffer-substring (point-min) (point-max)))
send-pr::template-alist))))))
(fset 'do-send-pr 'send-pr:submit-pr) ;backward compat
(defun send-pr:submit-pr ()
"Pipe the contents of the buffer *send-pr* to `send-pr -f -.' unless this
buffer was loaded with emacsclient, in which case save the buffer and exit."
;;
(interactive)
(cond
((and (boundp 'server-buffer-clients)
server-buffer-clients)
(let ((buffer (current-buffer))
(version-control nil) (buffer-backed-up nil))
(save-buffer buffer)
(kill-buffer buffer)
(server-buffer-done buffer)))
(send-pr:::spawn-to-send
(or (and send-pr:::err-buffer
(buffer-name send-pr:::err-buffer))
(setq send-pr:::err-buffer
(get-buffer-create send-pr::err-buffer-name)))
(let ((err-buffer send-pr:::err-buffer) mesg ok)
(save-excursion (set-buffer err-buffer) (erase-buffer))
(message "running send-pr...")
(let ((oldpr (getenv "GNATS_ROOT")))
(setenv "GNATS_ROOT" gnats:root)
(call-process-region (point-min) (point-max) "send-pr"
nil err-buffer nil send-pr:::site
"-b" "-f" "-")
(setenv "GNATS_ROOT" oldpr))
(message "running send-pr...done")
;; stupidly we cannot check the return value in EMACS 18.57, thus we need
;; this kluge to find out whether send-pr succeeded.
(if (save-excursion
(set-buffer err-buffer)
(goto-char (point-min))
(setq mesg (buffer-substring (point-min) (- (point-max) 1)))
(search-forward "problem report sent" nil t))
(progn (message mesg)
(kill-buffer err-buffer)
(delete-auto-save-file-if-necessary)
(set-buffer-modified-p nil)
(bury-buffer))
(pop-to-buffer err-buffer))
))
(t
(save-buffer)
(message "Exit emacs to send the PR."))))
;;;;---------------------------------------------------------------------------
;;;; send-pr:send-pr-mode mode
;;;;---------------------------------------------------------------------------
(defvar send-pr-mode-map
(let ((map (make-sparse-keymap)))
(define-key map "\C-c\C-c" 'send-pr:submit-pr)
(define-key map "\C-c\C-f" 'gnats:change-field)
(define-key map "\M-n" 'gnats:next-field)
(define-key map "\M-p" 'gnats:previous-field)
(define-key map "\C-\M-f" 'gnats:forward-field)
(define-key map "\C-\M-b" 'gnats:backward-field)
map)
"Keymap for send-pr mode.")
(defconst gnats::keyword "^>\\([-a-zA-Z]+\\):")
(defconst gnats::before-keyword "[ \t\n\f]*[\n\f]+>\\([-a-zA-Z]+\\):")
(defconst gnats::after-keyword "^>\\([-a-zA-Z]+\\):[ \t\n\f]+")
(fset 'send-pr-mode 'send-pr:send-pr-mode)
(defun send-pr:send-pr-mode ()
"Major mode for submitting problem reports.
For information about the form see gnats(1) and send-pr(1).
Special commands: \\{send-pr-mode-map}
Turning on send-pr-mode calls the value of the variable send-pr-mode-hook,
if it is not nil."
(interactive)
(gnats::patch-exec-path)
(put 'send-pr:send-pr-mode 'mode-class 'special)
(kill-all-local-variables)
(setq major-mode 'send-pr:send-pr-mode)
(setq mode-name "send-pr")
(use-local-map send-pr-mode-map)
(set-syntax-table text-mode-syntax-table)
(setq local-abbrev-table text-mode-abbrev-table)
(setq buffer-offer-save t)
(make-local-variable 'send-pr:::site)
(make-local-variable 'send-pr:::categories)
(make-local-variable 'send-pr:::err-buffer)
(make-local-variable 'send-pr:::spawn-to-send)
(make-local-variable 'paragraph-separate)
(setq paragraph-separate (concat (default-value 'paragraph-separate)
"\\|" gnats::keyword "[ \t\n\f]*$"))
(make-local-variable 'paragraph-start)
(setq paragraph-start (concat (default-value 'paragraph-start)
"\\|" gnats::keyword))
(run-hooks 'send-pr-mode-hook)
t)
;;;;---------------------------------------------------------------------------
;;;; Functions to read and replace field values.
;;;;---------------------------------------------------------------------------
(defun gnats::position-on-field (field &optional quiet)
(goto-char (point-min))
(if (not (re-search-forward (concat "^>" field ":") nil t))
(if quiet
nil
(error "Field `>%s:' not found." field))
(re-search-forward "[ \t\n\f]*")
(if (looking-at gnats::keyword)
(backward-char 1))
t))
(defun gnats::mail-position-on-field (field)
(let (end
(case-fold-search t))
(goto-char (point-min))
(re-search-forward "^$")
(setq end (match-beginning 0))
(goto-char (point-min))
(if (not (re-search-forward (concat "^" field ":") end 'go-to-end))
(insert field ": \n")
(re-search-forward "[ \t\n\f]*"))
(skip-chars-backward "\n")
t))
(defun gnats::field-contents (field &optional elem move)
(let (pos)
(unwind-protect
(save-excursion
(if (not (gnats::position-on-field field t))
nil
(setq pos (point-marker))
(if (or (looking-at "<.*>$") (eolp))
t
(looking-at ".*$") ; to set match-{beginning,end}
(gnats::nth-word
(buffer-substring (match-beginning 0) (match-end 0))
elem))))
(and move pos (goto-char pos)))))
(defun gnats::functionp (thing)
(or (and (symbolp thing) (fboundp thing))
(and (listp thing) (eq (car thing) 'lambda))))
(defun gnats::field-values (field)
"Return the possible (known) values for field FIELD."
(let* ((fields (if (eq major-mode 'gnats:gnats-mode) gnats::fields
send-pr::fields))
(thing (elt (assoc field fields) 1)))
(cond ((gnats::functionp thing) (funcall thing))
((listp thing) thing)
(t (error "ACK")))))
(defun gnats::field-default (field)
"Return the default value for field FIELD."
(let* ((fields (if (eq major-mode 'gnats:gnats-mode) gnats::fields
send-pr::fields))
(thing (elt (assoc field fields) 2)))
(cond ((stringp thing) thing)
((null thing) "")
((numberp thing) (car (elt (gnats::field-values field) thing)))
((gnats::functionp thing)
(funcall thing (gnats::field-contents field)))
((eq thing t) (gnats::field-contents field))
(t (error "ACK")))))
(defun gnats::field-type (field)
"Return the type of field FIELD."
(let* ((fields (if (eq major-mode 'gnats:gnats-mode) gnats::fields
send-pr::fields))
(thing (elt (assoc field fields) 3)))
thing))
(defun gnats::field-action (field)
"Return the extra handling function for field FIELD."
(let* ((fields (if (eq major-mode 'gnats:gnats-mode) gnats::fields
send-pr::fields))
(thing (elt (assoc field fields) 4)))
(cond ((null thing) 'ignore)
((gnats::functionp thing) thing)
(t (error "ACK")))))
;;;;---------------------------------------------------------------------------
;;;; Point movement functions
;;;;---------------------------------------------------------------------------
(or (fboundp 'defsubst) (fset 'defsubst 'defun))
(defun send-pr::maybe-change-field (field)
(setq field (car field))
(let ((thing (gnats::field-contents field)))
(and thing (eq t thing)
(not (eq 'multi-text (gnats::field-type field)))
(gnats:change-field field))))
(defun gnats:change-field (&optional field default)
"Change the value of the field containing the cursor. With arg, ask the
user for the field to change. From a program, the function takes optional
arguments of the field to change and the default value to use."
(interactive)
(or field current-prefix-arg (setq field (gnats::current-field)))
(or field
(setq field
(completing-read "Field: "
(if (eq major-mode 'gnats:gnats-mode)
gnats::fields
send-pr::fields)
nil t)))
(gnats::position-on-field field)
(sit-for 0)
(let* ((old (gnats::field-contents field))
new)
(if (null old)
(error "ACK")
(if (or (interactive-p) t)
(let ((prompt (concat ">" field ": "))
(domain (gnats::field-values field))
(type (gnats::field-type field)))
(or default (setq default (gnats::field-default field)))
(setq new
(if (eq type 'enum)
(completing-read prompt domain nil t
(if gnats::emacs-19p (cons default 0)
default))
(read-string prompt (if gnats::emacs-19p (cons default 1)
default)))))
(setq new default))
(gnats::set-field field new)
(funcall (gnats::field-action field) field old new)
new)))
(defun gnats::set-field (field value)
(save-excursion
(gnats::position-on-field field)
(delete-horizontal-space)
(looking-at ".*$")
(replace-match
(concat (make-string (- gnats::indent (length field) 2) ?\40 ) value) t)))
(defun gnats::set-mail-field (field value)
(save-excursion
(gnats::mail-position-on-field field)
(delete-horizontal-space)
(looking-at ".*$")
(replace-match (concat " " value) t)))
(defun gnats::before-keyword (&optional where)
"Returns t if point is in some white space before a keyword.
If where is nil, then point is not changed; if where is t then point is moved
to the beginning of the keyword, otherwise it is moved to the beginning
of the white space it was in."
;;
(if (looking-at gnats::before-keyword)
(prog1 t
(cond ((eq where t)
(re-search-forward "^>") (backward-char))
((not (eq where nil))
(re-search-backward "[^ \t\n\f]") (forward-char))))
nil))
(defun gnats::after-keyword (&optional where)
"Returns t if point is in some white space after a keyword.
If where is nil, then point is not changed; if where is t then point is moved
to the beginning of the keyword, otherwise it is moved to the end of the white
space it was in."
;;
(if (gnats::looking-after gnats::after-keyword)
(prog1 t
(cond ((eq where t)
(re-search-backward "^>"))
((not (eq where nil))
(re-search-forward "[^ \t\n\f]") (backward-char))))
nil))
(defun gnats::in-keyword (&optional where)
"Returns t if point is within a keyword.
If where is nil, then point is not changed; if where is t then point is moved
to the beginning of the keyword."
;;
(let ((old-point (point-marker)))
(beginning-of-line)
(cond ((and (looking-at gnats::keyword)
(< old-point (match-end 0)))
(prog1 t
(if (eq where t)
t
(goto-char old-point))))
(t (goto-char old-point)
nil))))
(defun gnats::forward-bofield ()
"Moves point to the beginning of a field. Assumes that point is in the
keyword."
;;
(if (re-search-forward "[ \t\n\f]+[^ \t\n\f]" (point-max) '-)
(backward-char)
t))
(defun gnats::backward-eofield ()
"Moves point to the end of a field. Assumes point is in the keyword."
;;
(if (re-search-backward "[^ \t\n\f][ \t\n\f]+" (point-min) '-)
(forward-char)
t))
(defun gnats::forward-eofield ()
"Moves point to the end of a field. Assumes that point is in the field."
;;
;; look for the next field
(if (re-search-forward gnats::keyword (point-max) '-)
(progn (beginning-of-line) (gnats::backward-eofield))
(re-search-backward "[^ \t\n\f][ \t\n\f]*" (point-min) '-)
(forward-char)))
(defun gnats::backward-bofield ()
"Moves point to the beginning of a field. Assumes that point is in the
field."
;;
;;look for previous field
(if (re-search-backward gnats::keyword (point-min) '-)
(gnats::forward-bofield)
t))
(defun gnats:forward-field ()
"Move point forward to the end of the field or to the beginning of the next
field."
;;
(interactive)
(if (or (gnats::before-keyword t) (gnats::in-keyword t)
(gnats::after-keyword t))
(gnats::forward-bofield)
(gnats::forward-eofield)))
(defun gnats:backward-field ()
"Move point backward to the beginning/end of a field."
;;
(interactive)
(backward-char)
(if (or (gnats::before-keyword t) (gnats::in-keyword t)
(gnats::after-keyword t))
(gnats::backward-eofield)
(gnats::backward-bofield)))
(defun gnats:next-field ()
"Move point to the beginning of the next field."
;;
(interactive)
(if (or (gnats::before-keyword t) (gnats::in-keyword t)
(gnats::after-keyword t))
(gnats::forward-bofield)
(if (re-search-forward gnats::keyword (point-max) '-)
(gnats::forward-bofield)
t)))
(defun gnats:previous-field ()
"Move point to the beginning of the previous field."
;;
(interactive)
(backward-char)
(if (or (gnats::after-keyword t) (gnats::in-keyword t)
(gnats::before-keyword t))
(progn (re-search-backward gnats::keyword (point-min) '-)
(gnats::forward-bofield))
(gnats::backward-bofield)))
(defun gnats:beginning-of-field ()
"Move point to the beginning of the current field."
(interactive)
(cond ((gnats::in-keyword t)
(gnats::forward-bofield))
((gnats::after-keyword 0))
(t
(gnats::backward-bofield))))
(defun gnats::current-field ()
(save-excursion
(if (cond ((or (gnats::in-keyword t) (gnats::after-keyword t))
(looking-at gnats::keyword))
((re-search-backward gnats::keyword nil t)))
(buffer-substring (match-beginning 1) (match-end 1))
nil)))
;;;;---------------------------------------------------------------------------
;;;; Support functions
;;;;---------------------------------------------------------------------------
(defun gnats::looking-after (regex)
"Returns t if point is after regex."
;;
(let* ((old-point (point))
(start (if (eobp)
old-point
(forward-char) (point))))
(cond ((re-search-backward regex (point-min) t)
(goto-char old-point)
(cond ((eq (match-end 0) start)
t))))))
(defun gnats::nth-word (string &optional elem)
"Returns the elem-th word of the string.
If elem is nil, then the first wort is returned, if elem is 0 then
the whole string is returned."
;;
(if (integerp elem)
(cond ((eq elem 0) string)
((eq elem 1) (gnats::first-word string))
((equal string "") "")
((>= elem 2)
(let ((i 0) (value ""))
(setq string ; strip leading blanks
(substring string (or (string-match "[^ \t]" string) 0)))
(while (< i elem)
(setq value
(substring string 0
(string-match "[ \t]*$\\|[ \t]+" string)))
(setq string
(substring string (match-end 0)))
(setq i (+ i 1)))
value)))
(gnats::first-word string)))
(defun gnats::first-word (string)
(setq string
(substring string (or (string-match "[^ \t]" string) 0)))
(substring string 0 (string-match "[ \t]*$\\|[ \t]+" string)))
;;;;---------------------------------------------------------------------------
(defun gnats::patch-exec-path ()
;;
"Replaces `//' by `/' in `exec-path'."
;;
;(make-local-variable 'exec-path)
(let ((err-buffer (get-buffer-create " *gnats::patch-exec-path*"))
(ret))
(setq exec-path (save-excursion (set-buffer err-buffer)
(prin1 exec-path err-buffer)
(goto-char (point-min))
(replace-string "//" "/")
(goto-char (point-min))
(setq ret (read err-buffer))
(kill-buffer err-buffer)
ret
))))
(defun gnats::get-value-from-shell (&rest command)
"Execute shell command to get a list of valid values for `variable'."
;;
(let ((err-buffer (get-buffer-create " *gnats::get-value-from-shell*")))
(save-excursion
(set-buffer err-buffer)
(unwind-protect
(condition-case var
(progn
(apply 'call-process
(car command) nil err-buffer nil (cdr command))
(goto-char (point-min))
(if (looking-at "[-a-z]+: ")
(error (buffer-substring (point-min) (point-max))))
(read err-buffer))
(error nil))
(kill-buffer err-buffer)))))
(or (fboundp 'setenv)
(defun setenv (variable &optional value)
"Set the value of the environment variable named VARIABLE to VALUE.
VARIABLE should be a string. VALUE is optional; if not provided or is
`nil', the environment variable VARIABLE will be removed.
This function works by modifying `process-environment'."
(interactive "sSet environment variable: \nsSet %s to value: ")
(if (string-match "=" variable)
(error "Environment variable name `%s' contains `='" variable)
(let ((pattern (concat "\\`" (regexp-quote (concat variable "="))))
(case-fold-search nil)
(scan process-environment))
(while scan
(cond
((string-match pattern (car scan))
(if (eq nil value)
(setq process-environment (delq (car scan)
process-environment))
(setcar scan (concat variable "=" value)))
(setq scan nil))
((null (setq scan (cdr scan)))
(setq process-environment
(cons (concat variable "=" value)
process-environment)))))))))
;;;; end of send-pr.el
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