(require 'custom)
(eval-when-compile
(require 'cl)
(defvar nnmail-pathname-coding-system))
(require 'nnheader)
(require 'time-date)
(eval-and-compile
(autoload 'message-fetch-field "message")
(autoload 'rmail-insert-rmail-file-header "rmail")
(autoload 'rmail-count-new-messages "rmail")
(autoload 'rmail-show-message "rmail"))
(defun gnus-boundp (variable)
"Return non-nil if VARIABLE is bound and non-nil."
(and (boundp variable)
(symbol-value variable)))
(defmacro gnus-eval-in-buffer-window (buffer &rest forms)
"Pop to BUFFER, evaluate FORMS, and then return to the original window."
(let ((tempvar (make-symbol "GnusStartBufferWindow"))
(w (make-symbol "w"))
(buf (make-symbol "buf")))
`(let* ((,tempvar (selected-window))
(,buf ,buffer)
(,w (get-buffer-window ,buf 'visible)))
(unwind-protect
(progn
(if ,w
(progn
(select-window ,w)
(set-buffer (window-buffer ,w)))
(pop-to-buffer ,buf))
,@forms)
(select-window ,tempvar)))))
(put 'gnus-eval-in-buffer-window 'lisp-indent-function 1)
(put 'gnus-eval-in-buffer-window 'edebug-form-spec '(form body))
(defmacro gnus-intern-safe (string hashtable)
"Set hash value. Arguments are STRING, VALUE, and HASHTABLE."
`(let ((symbol (intern ,string ,hashtable)))
(or (boundp symbol)
(set symbol nil))
symbol))
(defsubst gnus-limit-string (str width)
(if (> (length str) width)
(substring str 0 width)
str))
(defsubst gnus-functionp (form)
"Return non-nil if FORM is funcallable."
(or (and (symbolp form) (fboundp form))
(and (listp form) (eq (car form) 'lambda))
(byte-code-function-p form)))
(defsubst gnus-goto-char (point)
(and point (goto-char point)))
(defmacro gnus-buffer-exists-p (buffer)
`(let ((buffer ,buffer))
(when buffer
(funcall (if (stringp buffer) 'get-buffer 'buffer-name)
buffer))))
(defmacro gnus-kill-buffer (buffer)
`(let ((buf ,buffer))
(when (gnus-buffer-exists-p buf)
(kill-buffer buf))))
(defalias 'gnus-point-at-bol
(if (fboundp 'point-at-bol)
'point-at-bol
'line-beginning-position))
(defalias 'gnus-point-at-eol
(if (fboundp 'point-at-eol)
'point-at-eol
'line-end-position))
(defun gnus-delete-first (elt list)
"Delete by side effect the first occurrence of ELT as a member of LIST."
(if (equal (car list) elt)
(cdr list)
(let ((total list))
(while (and (cdr list)
(not (equal (cadr list) elt)))
(setq list (cdr list)))
(when (cdr list)
(setcdr list (cddr list)))
total)))
(defmacro gnus-delete-line (&optional n)
`(delete-region (progn (beginning-of-line) (point))
(progn (forward-line ,(or n 1)) (point))))
(defun gnus-byte-code (func)
"Return a form that can be `eval'ed based on FUNC."
(let ((fval (indirect-function func)))
(if (byte-code-function-p fval)
(let ((flist (append fval nil)))
(setcar flist 'byte-code)
flist)
(cons 'progn (cddr fval)))))
(defun gnus-extract-address-components (from)
(let (name address)
(when (string-match "\\b[^@ \t<>]+[!@][^@ \t<>]+\\b" from)
(setq address (substring from (match-beginning 0) (match-end 0))))
(and address
(string-match (concat "[ \t]*<" (regexp-quote address) ">") from)
(and (setq name (substring from 0 (match-beginning 0)))
(string-match "\".*\"" name)
(setq name (substring name 1 (1- (match-end 0))))))
(or name
(and (string-match "(.+)" from)
(setq name (substring from (1+ (match-beginning 0))
(1- (match-end 0)))))
(and (string-match "()" from)
(setq name address))
(and (string-match "(.*" from)
(setq name (substring from (1+ (match-beginning 0))
(match-end 0)))))
(list (if (string= name "") nil name) (or address from))))
(defun gnus-fetch-field (field)
"Return the value of the header FIELD of current article."
(save-excursion
(save-restriction
(let ((case-fold-search t)
(inhibit-point-motion-hooks t))
(nnheader-narrow-to-headers)
(message-fetch-field field)))))
(defun gnus-goto-colon ()
(beginning-of-line)
(search-forward ":" (gnus-point-at-eol) t))
(defun gnus-remove-text-with-property (prop)
"Delete all text in the current buffer with text property PROP."
(save-excursion
(goto-char (point-min))
(while (not (eobp))
(while (get-text-property (point) prop)
(delete-char 1))
(goto-char (next-single-property-change (point) prop nil (point-max))))))
(defun gnus-newsgroup-directory-form (newsgroup)
"Make hierarchical directory name from NEWSGROUP name."
(let ((newsgroup (gnus-newsgroup-savable-name newsgroup))
(len (length newsgroup))
idx)
(if (setq idx (string-match ":" newsgroup))
(aset newsgroup idx ?/)
(setq idx 0))
(while (< idx len)
(when (= (aref newsgroup idx) ?.)
(aset newsgroup idx ?/))
(setq idx (1+ idx)))
newsgroup))
(defun gnus-newsgroup-savable-name (group)
(nnheader-replace-chars-in-string group ?/ ?.))
(defun gnus-string> (s1 s2)
(not (or (string< s1 s2)
(string= s1 s2))))
(defun gnus-file-newer-than (file date)
(let ((fdate (nth 5 (file-attributes file))))
(or (> (car fdate) (car date))
(and (= (car fdate) (car date))
(> (nth 1 fdate) (nth 1 date))))))
(defmacro gnus-local-set-keys (&rest plist)
"Set the keys in PLIST in the current keymap."
`(gnus-define-keys-1 (current-local-map) ',plist))
(defmacro gnus-define-keys (keymap &rest plist)
"Define all keys in PLIST in KEYMAP."
`(gnus-define-keys-1 (quote ,keymap) (quote ,plist)))
(defmacro gnus-define-keys-safe (keymap &rest plist)
"Define all keys in PLIST in KEYMAP without overwriting previous definitions."
`(gnus-define-keys-1 (quote ,keymap) (quote ,plist) t))
(put 'gnus-define-keys 'lisp-indent-function 1)
(put 'gnus-define-keys-safe 'lisp-indent-function 1)
(put 'gnus-local-set-keys 'lisp-indent-function 1)
(defmacro gnus-define-keymap (keymap &rest plist)
"Define all keys in PLIST in KEYMAP."
`(gnus-define-keys-1 ,keymap (quote ,plist)))
(put 'gnus-define-keymap 'lisp-indent-function 1)
(defun gnus-define-keys-1 (keymap plist &optional safe)
(when (null keymap)
(error "Can't set keys in a null keymap"))
(cond ((symbolp keymap)
(setq keymap (symbol-value keymap)))
((keymapp keymap))
((listp keymap)
(set (car keymap) nil)
(define-prefix-command (car keymap))
(define-key (symbol-value (caddr keymap)) (cadr keymap) (car keymap))
(setq keymap (symbol-value (car keymap)))))
(let (key)
(while plist
(when (symbolp (setq key (pop plist)))
(setq key (symbol-value key)))
(if (or (not safe)
(eq (lookup-key keymap key) 'undefined))
(define-key keymap key (pop plist))
(pop plist)))))
(defun gnus-completing-read (default prompt &rest args)
(let* ((prompt (if default
(concat prompt " (default " default ") ")
(concat prompt " ")))
(answer (apply 'completing-read prompt args)))
(if (or (null answer) (zerop (length answer)))
default
answer)))
(defun gnus-y-or-n-p (prompt)
(prog1
(y-or-n-p prompt)
(message "")))
(defun gnus-yes-or-no-p (prompt)
(prog1
(yes-or-no-p prompt)
(message "")))
(defun gnus-dd-mmm (messy-date)
"Return a string like DD-MMM from a big messy string."
(condition-case ()
(format-time-string "%d-%b" (safe-date-to-time messy-date))
(error " - ")))
(defmacro gnus-date-get-time (date)
"Convert DATE string to Emacs time.
Cache the result as a text property stored in DATE."
`(let ((d ,date))
(if (equal "" d)
'(0 0)
(or (get-text-property 0 'gnus-time d)
(let ((time (safe-date-to-time d)))
(put-text-property 0 1 'gnus-time time d)
time)))))
(defsubst gnus-time-iso8601 (time)
"Return a string of TIME in YYYYMMDDTHHMMSS format."
(format-time-string "%Y%m%dT%H%M%S" time))
(defun gnus-date-iso8601 (date)
"Convert the DATE to YYYYMMDDTHHMMSS."
(condition-case ()
(gnus-time-iso8601 (gnus-date-get-time date))
(error "")))
(defun gnus-mode-string-quote (string)
"Quote all \"%\"'s in STRING."
(save-excursion
(gnus-set-work-buffer)
(insert string)
(goto-char (point-min))
(while (search-forward "%" nil t)
(insert "%"))
(buffer-string)))
(defun gnus-make-hashtable (&optional hashsize)
(make-vector (if hashsize (max (gnus-create-hash-size hashsize) 256) 256) 0))
(defun gnus-create-hash-size (min)
(let ((i 1))
(while (< i min)
(setq i (* 2 i)))
i))
(defcustom gnus-verbose 7
"*Integer that says how verbose Gnus should be.
The higher the number, the more messages Gnus will flash to say what
it's doing. At zero, Gnus will be totally mute; at five, Gnus will
display most important messages; and at ten, Gnus will keep on
jabbering all the time."
:group 'gnus-start
:type 'integer)
(defun gnus-message (level &rest args)
(if (<= level gnus-verbose)
(apply 'message args)
(apply 'format args)))
(defun gnus-error (level &rest args)
"Beep an error if LEVEL is equal to or less than `gnus-verbose'."
(when (<= (floor level) gnus-verbose)
(apply 'message args)
(ding)
(let (duration)
(when (and (floatp level)
(not (zerop (setq duration (* 10 (- level (floor level)))))))
(sit-for duration))))
nil)
(defun gnus-split-references (references)
"Return a list of Message-IDs in REFERENCES."
(let ((beg 0)
ids)
(while (string-match "<[^>]+>" references beg)
(push (substring references (match-beginning 0) (setq beg (match-end 0)))
ids))
(nreverse ids)))
(defsubst gnus-parent-id (references &optional n)
"Return the last Message-ID in REFERENCES.
If N, return the Nth ancestor instead."
(when references
(let ((ids (inline (gnus-split-references references))))
(while (nthcdr (or n 1) ids)
(setq ids (cdr ids)))
(car ids))))
(defsubst gnus-buffer-live-p (buffer)
"Say whether BUFFER is alive or not."
(and buffer
(get-buffer buffer)
(buffer-name (get-buffer buffer))))
(defun gnus-horizontal-recenter ()
"Recenter the current buffer horizontally."
(if (< (current-column) (/ (window-width) 2))
(set-window-hscroll (get-buffer-window (current-buffer) t) 0)
(let* ((orig (point))
(end (window-end (get-buffer-window (current-buffer) t)))
(max 0))
(when end
(goto-char (window-start))
(while (and (not (eobp))
(< (point) end))
(end-of-line)
(setq max (max max (current-column)))
(forward-line 1))
(goto-char orig)
(if (> max (window-width))
(set-window-hscroll
(get-buffer-window (current-buffer) t)
(min (- (current-column) (/ (window-width) 3))
(+ 2 (- max (window-width)))))
(set-window-hscroll (get-buffer-window (current-buffer) t) 0))
max))))
(defun gnus-read-event-char ()
"Get the next event."
(let ((event (read-event)))
(cons (and (numberp event) event) event)))
(defun gnus-sortable-date (date)
"Make string suitable for sorting from DATE."
(gnus-time-iso8601 (date-to-time date)))
(defun gnus-copy-file (file &optional to)
"Copy FILE to TO."
(interactive
(list (read-file-name "Copy file: " default-directory)
(read-file-name "Copy file to: " default-directory)))
(unless to
(setq to (read-file-name "Copy file to: " default-directory)))
(when (file-directory-p to)
(setq to (concat (file-name-as-directory to)
(file-name-nondirectory file))))
(copy-file file to))
(defvar gnus-work-buffer " *gnus work*")
(defun gnus-set-work-buffer ()
"Put point in the empty Gnus work buffer."
(if (get-buffer gnus-work-buffer)
(progn
(set-buffer gnus-work-buffer)
(erase-buffer))
(set-buffer (gnus-get-buffer-create gnus-work-buffer))
(kill-all-local-variables)
(mm-enable-multibyte)))
(defmacro gnus-group-real-name (group)
"Find the real name of a foreign newsgroup."
`(let ((gname ,group))
(if (string-match "^[^:]+:" gname)
(substring gname (match-end 0))
gname)))
(defun gnus-make-sort-function (funs)
"Return a composite sort condition based on the functions in FUNC."
(cond
((gnus-functionp funs) funs)
((null funs) funs)
((or (cdr funs)
(listp (car funs)))
`(lambda (t1 t2)
,(gnus-make-sort-function-1 (reverse funs))))
(t
(car funs))))
(defun gnus-make-sort-function-1 (funs)
"Return a composite sort condition based on the functions in FUNC."
(let ((function (car funs))
(first 't1)
(last 't2))
(when (consp function)
(cond
((eq (car function) 'not)
(setq function (cadr function)
first 't2
last 't1))
((gnus-functionp function)
)
(t
(error "Invalid sort spec: %s" function))))
(if (cdr funs)
`(or (,function ,first ,last)
(and (not (,function ,last ,first))
,(gnus-make-sort-function-1 (cdr funs))))
`(,function ,first ,last))))
(defun gnus-turn-off-edit-menu (type)
"Turn off edit menu in `gnus-TYPE-mode-map'."
(define-key (symbol-value (intern (format "gnus-%s-mode-map" type)))
[menu-bar edit] 'undefined))
(defun gnus-prin1 (form)
"Use `prin1' on FORM in the current buffer.
Bind `print-quoted' and `print-readably' to t while printing."
(let ((print-quoted t)
(print-readably t)
(print-escape-multibyte nil)
print-level print-length)
(prin1 form (current-buffer))))
(defun gnus-prin1-to-string (form)
"The same as `prin1', but bind `print-quoted' and `print-readably' to t."
(let ((print-quoted t)
(print-readably t))
(prin1-to-string form)))
(defun gnus-make-directory (directory)
"Make DIRECTORY (and all its parents) if it doesn't exist."
(require 'nnmail)
(let ((file-name-coding-system nnmail-pathname-coding-system))
(when (and directory
(not (file-exists-p directory)))
(make-directory directory t)))
t)
(defun gnus-write-buffer (file)
"Write the current buffer's contents to FILE."
(gnus-make-directory (file-name-directory file))
(let ((file-name-coding-system nnmail-pathname-coding-system))
(write-region (point-min) (point-max) file nil 'quietly)))
(defun gnus-delete-file (file)
"Delete FILE if it exists."
(when (file-exists-p file)
(delete-file file)))
(defun gnus-strip-whitespace (string)
"Return STRING stripped of all whitespace."
(while (string-match "[\r\n\t ]+" string)
(setq string (replace-match "" t t string)))
string)
(defsubst gnus-put-text-property-excluding-newlines (beg end prop val)
"The same as `put-text-property', but don't put this prop on any newlines in the region."
(save-match-data
(save-excursion
(save-restriction
(goto-char beg)
(while (re-search-forward gnus-emphasize-whitespace-regexp end 'move)
(gnus-put-text-property beg (match-beginning 0) prop val)
(setq beg (point)))
(gnus-put-text-property beg (point) prop val)))))
(defun gnus-put-text-property-excluding-characters-with-faces (beg end
prop val)
"The same as `put-text-property', but don't put props on characters with the `gnus-face' property."
(let ((b beg))
(while (/= b end)
(when (get-text-property b 'gnus-face)
(setq b (next-single-property-change b 'gnus-face nil end)))
(when (/= b end)
(gnus-put-text-property
b (setq b (next-single-property-change b 'gnus-face nil end))
prop val)))))
(defvar gnus-atomic-be-safe t
"If t, certain operations will be protected from interruption by C-g.")
(defmacro gnus-atomic-progn (&rest forms)
"Evaluate FORMS atomically, which means to protect the evaluation
from being interrupted by the user. An error from the forms themselves
will return without finishing the operation. Since interrupts from
the user are disabled, it is recommended that only the most minimal
operations are performed by FORMS. If you wish to assign many
complicated values atomically, compute the results into temporary
variables and then do only the assignment atomically."
`(let ((inhibit-quit gnus-atomic-be-safe))
,@forms))
(put 'gnus-atomic-progn 'lisp-indent-function 0)
(defmacro gnus-atomic-progn-assign (protect &rest forms)
"Evaluate FORMS, but insure that the variables listed in PROTECT
are not changed if anything in FORMS signals an error or otherwise
non-locally exits. The variables listed in PROTECT are updated atomically.
It is safe to use gnus-atomic-progn-assign with long computations.
Note that if any of the symbols in PROTECT were unbound, they will be
set to nil on a sucessful assignment. In case of an error or other
non-local exit, it will still be unbound."
(let* ((temp-sym-map (mapcar (lambda (x) (list (make-symbol
(concat (symbol-name x)
"-tmp"))
x))
protect))
(sym-temp-map (mapcar (lambda (x) (list (cadr x) (car x)))
temp-sym-map))
(temp-sym-let (mapcar (lambda (x) (list (car x)
`(and (boundp ',(cadr x))
,(cadr x))))
temp-sym-map))
(sym-temp-let sym-temp-map)
(temp-sym-assign (apply 'append temp-sym-map))
(sym-temp-assign (apply 'append sym-temp-map))
(result (make-symbol "result-tmp")))
`(let (,@temp-sym-let
,result)
(let ,sym-temp-let
(setq ,result (progn ,@forms))
(setq ,@temp-sym-assign))
(let ((inhibit-quit gnus-atomic-be-safe))
(setq ,@sym-temp-assign))
,result)))
(put 'gnus-atomic-progn-assign 'lisp-indent-function 1)
(defmacro gnus-atomic-setq (&rest pairs)
"Similar to setq, except that the real symbols are only assigned when
there are no errors. And when the real symbols are assigned, they are
done so atomically. If other variables might be changed via side-effect,
see gnus-atomic-progn-assign. It is safe to use gnus-atomic-setq
with potentially long computations."
(let ((tpairs pairs)
syms)
(while tpairs
(push (car tpairs) syms)
(setq tpairs (cddr tpairs)))
`(gnus-atomic-progn-assign ,syms
(setq ,@pairs))))
(defvar rmail-default-rmail-file)
(defun gnus-output-to-rmail (filename &optional ask)
"Append the current article to an Rmail file named FILENAME."
(require 'rmail)
(setq filename (expand-file-name filename))
(setq rmail-default-rmail-file filename)
(let ((artbuf (current-buffer))
(tmpbuf (get-buffer-create " *Gnus-output*")))
(save-excursion
(or (get-file-buffer filename)
(file-exists-p filename)
(if (or (not ask)
(gnus-yes-or-no-p
(concat "\"" filename "\" does not exist, create it? ")))
(let ((file-buffer (create-file-buffer filename)))
(save-excursion
(set-buffer file-buffer)
(rmail-insert-rmail-file-header)
(let ((require-final-newline nil)
(coding-system-for-write mm-text-coding-system))
(gnus-write-buffer filename)))
(kill-buffer file-buffer))
(error "Output file does not exist")))
(set-buffer tmpbuf)
(erase-buffer)
(insert-buffer-substring artbuf)
(gnus-convert-article-to-rmail)
(let ((outbuf (get-file-buffer filename)))
(if (not outbuf)
(let ((file-name-coding-system nnmail-pathname-coding-system))
(mm-append-to-file (point-min) (point-max) filename))
(set-buffer outbuf)
(let ((buffer-read-only nil)
(msg (and (boundp 'rmail-current-message)
(symbol-value 'rmail-current-message))))
(when msg
(widen)
(narrow-to-region (point-max) (point-max)))
(insert-buffer-substring tmpbuf)
(when msg
(goto-char (point-min))
(widen)
(search-backward "\n\^_")
(narrow-to-region (point) (point-max))
(rmail-count-new-messages t)
(when (rmail-summary-exists)
(rmail-select-summary
(rmail-update-summary)))
(rmail-count-new-messages t)
(rmail-show-message msg))
(save-buffer)))))
(kill-buffer tmpbuf)))
(defun gnus-output-to-mail (filename &optional ask)
"Append the current article to a mail file named FILENAME."
(setq filename (expand-file-name filename))
(let ((artbuf (current-buffer))
(tmpbuf (get-buffer-create " *Gnus-output*")))
(save-excursion
(when (and (not (get-file-buffer filename))
(not (file-exists-p filename)))
(if (or (not ask)
(gnus-y-or-n-p
(concat "\"" filename "\" does not exist, create it? ")))
(let ((file-buffer (create-file-buffer filename)))
(save-excursion
(set-buffer file-buffer)
(let ((require-final-newline nil)
(coding-system-for-write mm-text-coding-system))
(gnus-write-buffer filename)))
(kill-buffer file-buffer))
(error "Output file does not exist")))
(set-buffer tmpbuf)
(erase-buffer)
(insert-buffer-substring artbuf)
(goto-char (point-min))
(if (looking-at "From ")
(forward-line 1)
(insert "From nobody " (current-time-string) "\n"))
(let (case-fold-search)
(while (re-search-forward "^From " nil t)
(beginning-of-line)
(insert ">")))
(let ((outbuf (get-file-buffer filename)))
(if (not outbuf)
(let ((buffer-read-only nil))
(save-excursion
(goto-char (point-max))
(forward-char -2)
(unless (looking-at "\n\n")
(goto-char (point-max))
(unless (bolp)
(insert "\n"))
(insert "\n"))
(goto-char (point-max))
(let ((file-name-coding-system nnmail-pathname-coding-system))
(mm-append-to-file (point-min) (point-max) filename))))
(set-buffer outbuf)
(let ((buffer-read-only nil))
(goto-char (point-max))
(unless (eobp)
(insert "\n"))
(insert "\n")
(insert-buffer-substring tmpbuf)))))
(kill-buffer tmpbuf)))
(defun gnus-convert-article-to-rmail ()
"Convert article in current buffer to Rmail message format."
(let ((buffer-read-only nil))
(goto-char (point-min))
(insert "\^L\n0, unseen,,\n*** EOOH ***\n")
(while (search-forward "\n\^_" nil t) (replace-match "\n^_" t t)) (goto-char (point-max))
(insert "\^_")))
(defun gnus-map-function (funs arg)
"Applies the result of the first function in FUNS to the second, and so on.
ARG is passed to the first function."
(let ((myfuns funs))
(while myfuns
(setq arg (funcall (pop myfuns) arg)))
arg))
(defun gnus-run-hooks (&rest funcs)
"Does the same as `run-hooks', but saves excursion."
(let ((buf (current-buffer)))
(unwind-protect
(apply 'run-hooks funcs)
(set-buffer buf))))
(defun gnus-parse-netrc (file)
"Parse FILE and return an list of all entries in the file."
(when (file-exists-p file)
(with-temp-buffer
(let ((tokens '("machine" "default" "login"
"password" "account" "macdef" "force"
"port"))
alist elem result pair)
(insert-file-contents file)
(goto-char (point-min))
(while (not (eobp))
(narrow-to-region (point) (gnus-point-at-eol))
(while (not (eobp))
(skip-chars-forward "\t ")
(if (eq (char-after) ?#)
(goto-char (point-max))
(unless (eobp)
(setq elem
(if (= (following-char) ?\")
(read (current-buffer))
(buffer-substring
(point) (progn (skip-chars-forward "^\t ")
(point)))))
(cond
((equal elem "macdef")
;; We skip past the macro definition.
(widen)
(while (and (zerop (forward-line 1))
(looking-at "$")))
(narrow-to-region (point) (point)))
((member elem tokens)
;; Tokens that don't have a following value are ignored,
;; except "default".
(when (and pair (or (cdr pair)
(equal (car pair) "default")))
(push pair alist))
(setq pair (list elem)))
(t
;; Values that haven't got a preceding token are ignored.
(when pair
(setcdr pair elem)
(push pair alist)
(setq pair nil)))))))
(when alist
(push (nreverse alist) result))
(setq alist nil
pair nil)
(widen)
(forward-line 1))
(nreverse result)))))
(defun gnus-netrc-machine (list machine &optional port defaultport)
"Return the netrc values from LIST for MACHINE or for the default entry.
If PORT specified, only return entries with matching port tokens.
Entries without port tokens default to DEFAULTPORT."
(let ((rest list)
result)
(while list
(when (equal (cdr (assoc "machine" (car list))) machine)
(push (car list) result))
(pop list))
(unless result
;; No machine name matches, so we look for default entries.
(while rest
(when (assoc "default" (car rest))
(push (car rest) result))
(pop rest)))
(when result
(setq result (nreverse result))
(while (and result
(not (equal (or port defaultport "nntp")
(or (gnus-netrc-get (car result) "port")
defaultport "nntp"))))
(pop result))
(car result))))
(defun gnus-netrc-get (alist type)
"Return the value of token TYPE from ALIST."
(cdr (assoc type alist)))
;;; Various
(defvar gnus-group-buffer) ; Compiler directive
(defun gnus-alive-p ()
"Say whether Gnus is running or not."
(and (boundp 'gnus-group-buffer)
(get-buffer gnus-group-buffer)
(save-excursion
(set-buffer gnus-group-buffer)
(eq major-mode 'gnus-group-mode))))
(defun gnus-remove-duplicates (list)
(let (new (tail list))
(while tail
(or (member (car tail) new)
(setq new (cons (car tail) new)))
(setq tail (cdr tail)))
(nreverse new)))
(defun gnus-delete-if (predicate list)
"Delete elements from LIST that satisfy PREDICATE."
(let (out)
(while list
(unless (funcall predicate (car list))
(push (car list) out))
(pop list))
(nreverse out)))
(defun gnus-delete-alist (key alist)
"Delete all entries in ALIST that have a key eq to KEY."
(let (entry)
(while (setq entry (assq key alist))
(setq alist (delq entry alist)))
alist))
(defmacro gnus-pull (key alist &optional assoc-p)
"Modify ALIST to be without KEY."
(unless (symbolp alist)
(error "Not a symbol: %s" alist))
(let ((fun (if assoc-p 'assoc 'assq)))
`(setq ,alist (delq (,fun ,key ,alist) ,alist))))
(defun gnus-globalify-regexp (re)
"Returns a regexp that matches a whole line, iff RE matches a part of it."
(concat (unless (string-match "^\\^" re) "^.*")
re
(unless (string-match "\\$$" re) ".*$")))
(defun gnus-set-window-start (&optional point)
"Set the window start to POINT, or (point) if nil."
(let ((win (get-buffer-window (current-buffer) t)))
(when win
(set-window-start win (or point (point))))))
(defun gnus-annotation-in-region-p (b e)
(if (= b e)
(eq (cadr (memq 'gnus-undeletable (text-properties-at b))) t)
(text-property-any b e 'gnus-undeletable t)))
(defun gnus-or (&rest elems)
"Return non-nil if any of the elements are non-nil."
(catch 'found
(while elems
(when (pop elems)
(throw 'found t)))))
(defun gnus-and (&rest elems)
"Return non-nil if all of the elements are non-nil."
(catch 'found
(while elems
(unless (pop elems)
(throw 'found nil)))
t))
(defun gnus-write-active-file (file hashtb &optional full-names)
(let ((coding-system-for-write nnmail-active-file-coding-system))
(with-temp-file file
(mapatoms
(lambda (sym)
(when (and sym
(boundp sym)
(symbol-value sym))
(insert (format "%S %d %d y\n"
(if full-names
sym
(intern (gnus-group-real-name (symbol-name sym))))
(or (cdr (symbol-value sym))
(car (symbol-value sym)))
(car (symbol-value sym))))))
hashtb)
(goto-char (point-max))
(while (search-backward "\\." nil t)
(delete-char 1)))))
(defun gnus-add-text-properties-when
(property value start end properties &optional object)
"Like `gnus-add-text-properties', only applied on where PROPERTY is VALUE."
(let (point)
(while (and start
(setq point (text-property-not-all start end property value)))
(gnus-add-text-properties start point properties object)
(setq start (text-property-any point end property value)))
(if start
(gnus-add-text-properties start end properties object))))
(defun gnus-remove-text-properties-when
(property value start end properties &optional object)
"Like `remove-text-properties', only applied on where PROPERTY is VALUE."
(let (point)
(while (and start
(setq point (text-property-not-all start end property value)))
(remove-text-properties start point properties object)
(setq start (text-property-any point end property value)))
(if start
(remove-text-properties start end properties object))
t))
(defvar gnus-directory-sep-char-regexp "/"
"The regexp of directory separator character.
If you find some problem with the directory separator character, try
\"[/\\\\\]\" for some systems.")
(provide 'gnus-util)