(provide 'viper-ex)
(defvar read-file-name-map)
(defvar viper-use-register)
(defvar viper-s-string)
(defvar viper-shift-width)
(defvar viper-ex-history)
(defvar viper-related-files-and-buffers-ring)
(defvar viper-local-search-start-marker)
(defvar viper-expert-level)
(defvar viper-custom-file-name)
(defvar viper-case-fold-search)
(defvar explicit-shell-file-name)
(if noninteractive
(eval-when-compile
(let ((load-path (cons (expand-file-name ".") load-path)))
(or (featurep 'viper-util)
(load "viper-util.el" nil nil 'nosuffix))
(or (featurep 'viper-keym)
(load "viper-keym.el" nil nil 'nosuffix))
(or (featurep 'viper-cmd)
(load "viper-cmd.el" nil nil 'nosuffix))
)))
(require 'viper-util)
(defgroup viper-ex nil
"Viper support for Ex commands"
:prefix "ex-"
:group 'viper)
(defconst viper-ex-work-buf-name " *ex-working-space*")
(defconst viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(defconst viper-ex-tmp-buf-name " *ex-tmp*")
(defun ex-cmd-obsolete (name)
(error "`%s': Obsolete command, not supported by Viper" name))
(defun ex-cmd-not-yet (name)
(error "`%s': Command not implemented in Viper" name))
(defconst ex-token-alist '(
("!" (ex-command))
("&" (ex-substitute t))
("=" (ex-line-no))
(">" (ex-line "right"))
("<" (ex-line "left"))
("Buffer" (if ex-cycle-other-window
(viper-switch-to-buffer)
(viper-switch-to-buffer-other-window)))
("Next" (ex-next (not ex-cycle-other-window)))
("PreviousRelatedFile" (ex-next-related-buffer -1))
("RelatedFile" (ex-next-related-buffer 1))
("W" "Write")
("WWrite" (save-some-buffers t))
("Write" (save-some-buffers))
("a" "append")
("args" (ex-args))
("buffer" (if ex-cycle-other-window
(viper-switch-to-buffer-other-window)
(viper-switch-to-buffer)))
("c" "change")
("ch" "chdir")
("cd" (ex-cd))
("chdir" (ex-cd))
("copy" (ex-copy nil))
("customize" (customize-group "viper"))
("delete" (ex-delete))
("edit" (ex-edit))
("file" (viper-info-on-file))
("g" "global")
("global" (ex-global nil) is-mashed)
("goto" (ex-goto))
("help" (ex-help))
("join" (ex-line "join"))
("k" (ex-mark) one-letter)
("kmark" (ex-mark))
("m" "move")
("make" (ex-compile))
("map" (ex-map))
("mark" (ex-mark))
("move" (ex-copy t))
("next" (ex-next ex-cycle-other-window))
("p" "print")
("preserve" (ex-preserve))
("put" (ex-put))
("pwd" (ex-pwd))
("quit" (ex-quit))
("r" "read")
("re" "read")
("read" (ex-read))
("recover" (ex-recover))
("rewind" (ex-rewind))
("s" "substitute")
("su" "substitute")
("sub" "substitute")
("set" (ex-set))
("shell" (ex-shell))
("source" (ex-source))
("stop" (suspend-emacs))
("sr" (ex-substitute t t))
("submitReport" (viper-submit-report))
("substitute" (ex-substitute) is-mashed)
("suspend" (suspend-emacs))
("t" "transfer")
("tag" (ex-tag))
("transfer" (ex-copy nil))
("u" "undo")
("un" "undo")
("undo" (viper-undo))
("unmap" (ex-unmap))
("v" "vglobal")
("version" (viper-version))
("vglobal" (ex-global t) is-mashed)
("visual" (ex-edit))
("w" "write")
("wq" (ex-write t))
("write" (ex-write nil))
("xit" (ex-write t))
("yank" (ex-yank))
("~" (ex-substitute t t))
("append" (ex-cmd-obsolete "append"))
("change" (ex-cmd-obsolete "change"))
("insert" (ex-cmd-obsolete "insert"))
("open" (ex-cmd-obsolete "open"))
("list" (ex-cmd-not-yet "list"))
("print" (ex-cmd-not-yet "print"))
("z" (ex-cmd-not-yet "z"))
("#" (ex-cmd-not-yet "#"))
("abbreviate" (error "`%s': Vi abbreviations are obsolete. Use the more powerful Emacs abbrevs" ex-token))
("unabbreviate" (error "`%s': Vi abbreviations are obsolete. Use the more powerful Emacs abbrevs" ex-token))
))
(defun ex-cmd-is-mashed-with-args (cmd)
(if (eq 'is-mashed (car (nthcdr 2 cmd))) cmd))
(defun ex-cmd-is-one-letter (cmd)
(if (eq 'one-letter (car (nthcdr 2 cmd))) cmd))
(defun ex-cmd-execute (cmd)
(eval (cadr cmd)))
(defun ex-splice-args-in-1-letr-cmd (key list)
(let ((onelet (ex-cmd-is-one-letter (assoc (substring key 0 1) list))))
(if onelet
(list key
(append (cadr onelet)
(if (< 1 (length key)) (list (substring key 1))))
(caddr onelet)))
))
(defun ex-cmd-assoc (key list)
(let ((entry (try-completion key list))
result)
(setq result (cond
((eq entry t) (assoc key list))
((stringp entry) (or (ex-splice-args-in-1-letr-cmd key list)
(assoc entry list)))
((eq entry nil) (ex-splice-args-in-1-letr-cmd key list))
(t nil)
))
(if (stringp (cadr result))
(setq result (ex-cmd-assoc (cadr result) list)))
result
))
(defconst ex-variable-alist
'(("wrapscan") ("ws") ("wrapmargin") ("wm")
("tabstop-global") ("ts-g") ("tabstop") ("ts")
("showmatch") ("sm") ("shiftwidth") ("sw") ("shell") ("sh")
("readonly") ("ro")
("nowrapscan") ("nows") ("noshowmatch") ("nosm")
("noreadonly") ("noro") ("nomagic") ("noma")
("noignorecase") ("noic")
("noautoindent-global") ("noai-g") ("noautoindent") ("noai")
("magic") ("ma") ("ignorecase") ("ic")
("autoindent-global") ("ai-g") ("autoindent") ("ai")
("all")
))
(defvar ex-token nil)
(defvar ex-token-type nil)
(defvar ex-addresses nil)
(defvar ex-flag nil)
(defvar ex-buffer nil)
(defvar ex-count nil)
(defvar ex-g-flag nil)
(defvar ex-g-variant nil)
(defvar ex-reg-exp nil)
(defvar ex-repl nil)
(defvar ex-g-pat nil)
(defcustom ex-unix-type-shell
(let ((case-fold-search t))
(and (stringp shell-file-name)
(string-match
(concat
"\\("
"csh$\\|csh.exe$"
"\\|"
"ksh$\\|ksh.exe$"
"\\|"
"^sh$\\|sh.exe$"
"\\|"
"[^a-z]sh$\\|[^a-z]sh.exe$"
"\\|"
"bash$\\|bash.exe$"
"\\)")
shell-file-name)))
"Is the user using a unix-type shell under a non-OS?"
:type 'boolean
:group 'viper-ex)
(defcustom ex-unix-type-shell-options
(let ((case-fold-search t))
(if ex-unix-type-shell
(cond ((string-match "\\(csh$\\|csh.exe$\\)" shell-file-name)
"-f") ((string-match "\\(bash$\\|bash.exe$\\)" shell-file-name)
"-noprofile") )))
"Options to pass to the Unix-style shell.
Don't put `-c' here, as it is added automatically."
:type '(choice (const nil) string)
:group 'viper-ex)
(defcustom ex-compile-command "make"
"The comand to run when the user types :make."
:type 'string
:group 'viper-ex)
(defcustom viper-glob-function
(cond (ex-unix-type-shell 'viper-glob-unix-files)
((eq system-type 'emx) 'viper-glob-mswindows-files) (viper-ms-style-os-p 'viper-glob-mswindows-files) (viper-vms-os-p 'viper-glob-unix-files) (t 'viper-glob-unix-files) )
"Expand the file spec containing wildcard symbols.
The default tries to set this variable to work with Unix, Windows,
OS/2, and VMS.
However, if it doesn't work right for some types of Unix shells or some OS,
the user should supply the appropriate function and set this variable to the
corresponding function symbol."
:type 'symbol
:group 'viper-ex)
(defvar ex-tag nil)
(defvar ex-file nil)
(defvar ex-variant nil)
(defvar ex-offset nil)
(defvar ex-append nil)
(defvar ex-cmdfile nil)
(defvar ex-cmdfile-args "")
(defvar viper-keep-reading-filename nil)
(defcustom ex-cycle-other-window t
"*If t, :n and :b cycles through files and buffers in other window.
Then :N and :B cycles in the current window. If nil, this behavior is
reversed."
:type 'boolean
:group 'viper-ex)
(defcustom ex-cycle-through-non-files nil
"*Cycle through *scratch* and other buffers that don't visit any file."
:type 'boolean
:group 'viper-ex)
(defvar viper-ex-last-shell-com nil)
(defvar viper-incomplete-ex-cmd nil)
(defvar viper-last-ex-prompt "")
(defun viper-get-ex-com-subr ()
(let (cmd case-fold-search)
(set-mark (point))
(re-search-forward "[a-zA-Z][a-zA-Z]*")
(setq ex-token-type 'command)
(setq ex-token (buffer-substring (point) (mark t)))
(setq cmd (ex-cmd-assoc ex-token ex-token-alist))
(if cmd
(setq ex-token (car cmd))
(setq ex-token-type 'non-command))
))
(defun viper-get-ex-token ()
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(skip-chars-forward " \t|")
(let ((case-fold-search t))
(cond ((looking-at "#")
(setq ex-token-type 'command)
(setq ex-token (char-to-string (following-char)))
(forward-char 1))
((looking-at "[a-z]") (viper-get-ex-com-subr))
((looking-at "\\.")
(forward-char 1)
(setq ex-token-type 'dot))
((looking-at "[0-9]")
(set-mark (point))
(re-search-forward "[0-9]*")
(setq ex-token-type
(cond ((eq ex-token-type 'plus) 'add-number)
((eq ex-token-type 'minus) 'sub-number)
(t 'abs-number)))
(setq ex-token
(string-to-int (buffer-substring (point) (mark t)))))
((looking-at "\\$")
(forward-char 1)
(setq ex-token-type 'end))
((looking-at "%")
(forward-char 1)
(setq ex-token-type 'whole))
((looking-at "+")
(cond ((or (looking-at "+[-+]") (looking-at "+[\n|]"))
(forward-char 1)
(insert "1")
(backward-char 1)
(setq ex-token-type 'plus))
((looking-at "+[0-9]")
(forward-char 1)
(setq ex-token-type 'plus))
(t
(error viper-BadAddress))))
((looking-at "-")
(cond ((or (looking-at "-[-+]") (looking-at "-[\n|]"))
(forward-char 1)
(insert "1")
(backward-char 1)
(setq ex-token-type 'minus))
((looking-at "-[0-9]")
(forward-char 1)
(setq ex-token-type 'minus))
(t
(error viper-BadAddress))))
((looking-at "/")
(forward-char 1)
(set-mark (point))
(let ((cont t))
(while (and (not (eolp)) cont)
(re-search-forward "[^/]*\\(/\\|\n\\)")
(if (not (viper-looking-back "[^\\\\]\\(\\\\\\\\\\)*\\\\/"))
(setq cont nil))))
(backward-char 1)
(setq ex-token (buffer-substring (point) (mark t)))
(if (looking-at "/") (forward-char 1))
(setq ex-token-type 'search-forward))
((looking-at "\\?")
(forward-char 1)
(set-mark (point))
(let ((cont t))
(while (and (not (eolp)) cont)
(re-search-forward "[^\\?]*\\(\\?\\|\n\\)")
(if (not (viper-looking-back "[^\\\\]\\(\\\\\\\\\\)*\\\\\\?"))
(setq cont nil))
(backward-char 1)
(if (not (looking-at "\n")) (forward-char 1))))
(setq ex-token-type 'search-backward)
(setq ex-token (buffer-substring (1- (point)) (mark t))))
((looking-at ",")
(forward-char 1)
(setq ex-token-type 'comma))
((looking-at ";")
(forward-char 1)
(setq ex-token-type 'semi-colon))
((looking-at "[!=><&~]")
(setq ex-token-type 'command)
(setq ex-token (char-to-string (following-char)))
(forward-char 1))
((looking-at "'")
(setq ex-token-type 'goto-mark)
(forward-char 1)
(cond ((looking-at "'") (setq ex-token nil))
((looking-at "[a-z]") (setq ex-token (following-char)))
(t (error "Marks are ' and a-z")))
(forward-char 1))
((looking-at "\n")
(setq ex-token-type 'end-mark)
(setq ex-token "goto"))
(t
(error viper-BadExCommand))))))
(defun ex-cmd-read-exit ()
(interactive)
(setq viper-incomplete-ex-cmd t)
(let ((quit-regex1 (concat
"\\(" "set[ \t]*"
"\\|" "edit[ \t]*"
"\\|" "[nN]ext[ \t]*"
"\\|" "unm[ \t]*"
"\\|" "^[ \t]*rep"
"\\)"))
(quit-regex2 (concat
"[a-zA-Z][ \t]*"
"\\(" "!" "\\|" ">>"
"\\|" "\\+[0-9]+"
"\\)"
"*[ \t]*$"))
(stay-regex (concat
"\\(" "^[ \t]*$"
"\\|" "[?/].*"
"\\|" "[ktgjmsz][ \t]*$"
"\\|" "^[ \t]*ab.*"
"\\|" "tr[ansfer \t]*"
"\\|" "sr[ \t]*"
"\\|" "mo.*"
"\\|" "^[ \t]*k?ma[^p]*"
"\\|" "^[ \t]*fi.*"
"\\|" "v?gl.*"
"\\|" "[vg][ \t]*$"
"\\|" "jo.*"
"\\|" "^[ \t]*ta.*"
"\\|" "^[ \t]*una.*"
"\\|" "^[ \t]*\\([`'][a-z]\\|[.,%]\\)*[ \t]*su.*"
"\\|" "^[ \t]*\\([`'][a-z]\\|[.,%]\\)*[ \t]*s[^a-z].*"
"\\|" "['`][a-z][ \t]*"
"\\|" "\\(r\\|re\\|rea\\|read\\)[ \t]*!"
"\\|" "\\(w\\|wr\\|wri\\|writ.?\\)[ \t]+!"
"\\|" "![ \t]*[a-zA-Z].*"
"\\)"
"!*")))
(save-window-excursion (setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(goto-char (point-max)))
(cond ((viper-looking-back quit-regex1) (exit-minibuffer))
((viper-looking-back stay-regex) (insert " "))
((viper-looking-back quit-regex2) (exit-minibuffer))
(t (insert " ")))))
(defun ex-cmd-complete ()
(interactive)
(let (save-pos dist compl-list string-to-complete completion-result)
(save-excursion
(setq dist (skip-chars-backward "[a-zA-Z!=>&~]")
save-pos (point)))
(if (or (= dist 0)
(viper-looking-back "\\([ \t]*['`][ \t]*[a-z]*\\)")
(viper-looking-back
"^[ \t]*[a-zA-Z!=>&~][ \t]*[/?]*[ \t]+[a-zA-Z!=>&~]+"))
(if (or (viper-looking-back "[a-zA-Z!=>&~][ \t]*[/?]*[ \t]*")
(viper-looking-back "\\([ \t]*['`][ \t]*[a-z]*\\)")
(looking-at "[^ \t\n\C-m]"))
nil
(with-output-to-temp-buffer "*Completions*"
(display-completion-list
(viper-alist-to-list ex-token-alist))))
(setq string-to-complete (buffer-substring save-pos (point)))
(setq completion-result
(try-completion string-to-complete ex-token-alist))
(cond ((eq completion-result t) (viper-tmp-insert-at-eob " (Sole completion)"))
((eq completion-result nil)
(viper-tmp-insert-at-eob " (No match)"))
(t (goto-char save-pos)
(delete-region (point) (point-max))
(insert completion-result)
(let (case-fold-search)
(setq compl-list
(viper-filter-alist (concat "^" completion-result)
ex-token-alist)))
(if (> (length compl-list) 1)
(with-output-to-temp-buffer "*Completions*"
(display-completion-list
(viper-alist-to-list (reverse compl-list)))))))
)))
(defun viper-ex (arg &optional string)
(interactive "P")
(or string
(setq ex-g-flag nil
ex-g-variant nil))
(let* ((map (copy-keymap minibuffer-local-map))
(address nil)
(cont t)
(dot (point))
reg-beg-line reg-end-line
reg-beg reg-end
initial-str
prev-token-type com-str)
(viper-add-keymap viper-ex-cmd-map map)
(if arg
(progn
(viper-enlarge-region (mark t) (point))
(if (> (point) (mark t))
(setq reg-beg (mark t)
reg-end (point))
(setq reg-end (mark t)
reg-beg (point)))
(save-excursion
(goto-char reg-beg)
(setq reg-beg-line (1+ (count-lines (point-min) (point)))
reg-end-line
(+ reg-beg-line (count-lines reg-beg reg-end) -1)))))
(if reg-beg-line
(setq initial-str (format "%d,%d" reg-beg-line reg-end-line)))
(setq com-str
(or string (viper-read-string-with-history
":"
initial-str
'viper-ex-history
(if initial-str
nil
(car viper-ex-history))
map
(if initial-str
" [Type command to execute on current region]"))))
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(delete-region (point-min) (point-max))
(insert com-str "\n")
(goto-char (point-min)))
(setq ex-token-type nil
ex-addresses nil)
(while cont
(viper-get-ex-token)
(cond ((memq ex-token-type '(command end-mark))
(if address (setq ex-addresses (cons address ex-addresses)))
(viper-deactivate-mark)
(let ((cmd (ex-cmd-assoc ex-token ex-token-alist)))
(if (null cmd)
(error "`%s': %s" ex-token viper-BadExCommand))
(ex-cmd-execute cmd)
(if (or (ex-cmd-is-mashed-with-args cmd)
(ex-cmd-is-one-letter cmd))
(setq cont nil)
(save-excursion
(save-window-excursion
(setq viper-ex-work-buf
(get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(skip-chars-forward " \t")
(cond ((looking-at "|")
(forward-char 1))
((looking-at "\n")
(setq cont nil))
(t (error
"`%s': %s" ex-token viper-SpuriousText)))
)))
))
((eq ex-token-type 'non-command)
(error "`%s': %s" ex-token viper-BadExCommand))
((eq ex-token-type 'whole)
(setq address nil)
(setq ex-addresses
(if ex-addresses
(cons (point-max) ex-addresses)
(cons (point-max) (cons (point-min) ex-addresses)))))
((eq ex-token-type 'comma)
(if (eq prev-token-type 'whole)
(setq address (point-min)))
(setq ex-addresses
(cons (if (null address) (point) address) ex-addresses)))
((eq ex-token-type 'semi-colon)
(if (eq prev-token-type 'whole)
(setq address (point-min)))
(if address (setq dot address))
(setq ex-addresses
(cons (if (null address) (point) address) ex-addresses)))
(t (let ((ans (viper-get-ex-address-subr address dot)))
(if ans (setq address ans)))))
(setq prev-token-type ex-token-type))))
(defun viper-get-ex-pat ()
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(skip-chars-forward " \t")
(if (looking-at "!")
(progn
(setq ex-g-variant (not ex-g-variant)
ex-g-flag (not ex-g-flag))
(forward-char 1)
(skip-chars-forward " \t")))
(let ((c (following-char)))
(cond ((string-match "[0-9A-Za-z]" (format "%c" c))
(error
"Global regexp must be inside matching non-alphanumeric chars"))
((= c ??) (error "`?' is not an allowed pattern delimiter here")))
(if (looking-at "[^\\\\\n]")
(progn
(forward-char 1)
(set-mark (point))
(let ((cont t))
(while (and (not (eobp)) cont)
(if (not (re-search-forward (format "[^%c]*%c" c c) nil t))
(if (member ex-token '("global" "vglobal"))
(error "Missing closing delimiter for global regexp")
(goto-char (point-max))))
(if (not (viper-looking-back
(format "[^\\\\]\\(\\\\\\\\\\)*\\\\%c" c)))
(setq cont nil)
(delete-backward-char 2)
(insert c)
(if (eolp)
(progn
(setq cont nil)
(forward-char))))
))
(setq ex-token
(if (= (mark t) (point)) ""
(buffer-substring (1- (point)) (mark t))))
(backward-char 1)
(if (eolp)
(progn
(insert c)
(backward-char 1)))
)
(setq ex-token nil))
c)))
(defun viper-get-ex-opt-gc (c)
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(if (looking-at (format "%c" c)) (forward-char 1))
(skip-chars-forward " \t")
(cond ((looking-at "g")
(setq ex-token "g")
(forward-char 1)
t)
((looking-at "c")
(setq ex-token "c")
(forward-char 1)
t)
(t nil))))
(defun viper-default-ex-addresses (&optional whole-flag)
(cond ((null ex-addresses)
(setq ex-addresses
(if whole-flag
(list (point-max) (point-min))
(list (point) (point)))))
((null (cdr ex-addresses))
(setq ex-addresses
(cons (car ex-addresses) ex-addresses)))))
(defun viper-get-ex-address ()
(let ((address (point-marker))
(cont t))
(setq ex-token "")
(setq ex-flag nil)
(while cont
(viper-get-ex-token)
(cond ((eq ex-token-type 'command)
(if (member ex-token '("print" "list" "#"))
(progn
(setq ex-flag t
cont nil))
(error "Address expected in this Ex command")))
((eq ex-token-type 'end-mark)
(setq cont nil))
((eq ex-token-type 'whole)
(error "Trailing address expected"))
((eq ex-token-type 'comma)
(error "`%s': %s" ex-token viper-SpuriousText))
(t (let ((ans (viper-get-ex-address-subr address (point-marker))))
(if ans (setq address ans))))))
address))
(defun viper-get-ex-address-subr (old-address dot)
(let ((address nil))
(if (null old-address) (setq old-address dot))
(cond ((eq ex-token-type 'dot)
(setq address dot))
((eq ex-token-type 'add-number)
(save-excursion
(goto-char old-address)
(forward-line (if (= old-address 0) (1- ex-token) ex-token))
(setq address (point-marker))))
((eq ex-token-type 'sub-number)
(save-excursion
(goto-char old-address)
(forward-line (- ex-token))
(setq address (point-marker))))
((eq ex-token-type 'abs-number)
(save-excursion
(goto-char (point-min))
(if (= ex-token 0) (setq address 0)
(forward-line (1- ex-token))
(setq address (point-marker)))))
((eq ex-token-type 'end)
(setq address (point-max-marker)))
((eq ex-token-type 'plus) t) ((eq ex-token-type 'minus) t) ((eq ex-token-type 'search-forward)
(save-excursion
(ex-search-address t)
(setq address (point-marker))))
((eq ex-token-type 'search-backward)
(save-excursion
(ex-search-address nil)
(setq address (point-marker))))
((eq ex-token-type 'goto-mark)
(save-excursion
(if (null ex-token)
(exchange-point-and-mark)
(goto-char
(viper-register-to-point
(viper-int-to-char (1+ (- ex-token ?a))) 'enforce-buffer)))
(setq address (point-marker)))))
address))
(defun ex-search-address (forward)
(if (string= ex-token "")
(if (null viper-s-string)
(error viper-NoPrevSearch)
(setq ex-token viper-s-string))
(setq viper-s-string ex-token))
(if forward
(progn
(forward-line 1)
(re-search-forward ex-token))
(forward-line -1)
(re-search-backward ex-token)))
(defun viper-get-ex-buffer ()
(setq ex-buffer nil)
(setq ex-count nil)
(setq ex-flag nil)
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(skip-chars-forward " \t")
(if (looking-at "[a-zA-Z]")
(progn
(setq ex-buffer (following-char))
(forward-char 1)
(skip-chars-forward " \t")))
(if (looking-at "[0-9]")
(progn
(set-mark (point))
(re-search-forward "[0-9][0-9]*")
(setq ex-count (string-to-int (buffer-substring (point) (mark t))))
(skip-chars-forward " \t")))
(if (looking-at "[pl#]")
(progn
(setq ex-flag t)
(forward-char 1)))
(if (not (looking-at "[\n|]"))
(error "`%s': %s" ex-token viper-SpuriousText))))
(defun viper-get-ex-count ()
(setq ex-variant nil
ex-count nil
ex-flag nil)
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(skip-chars-forward " \t")
(if (looking-at "!")
(progn
(setq ex-variant t)
(forward-char 1)))
(skip-chars-forward " \t")
(if (looking-at "[0-9]")
(progn
(set-mark (point))
(re-search-forward "[0-9][0-9]*")
(setq ex-count (string-to-int (buffer-substring (point) (mark t))))
(skip-chars-forward " \t")))
(if (looking-at "[pl#]")
(progn
(setq ex-flag t)
(forward-char 1)))
(if (not (looking-at "[\n|]"))
(error "`%s': %s"
(buffer-substring
(point-min) (1- (point-max))) viper-BadExCommand))))
(defun ex-expand-filsyms (cmd buf)
(let (cf pf ret)
(save-excursion
(set-buffer buf)
(setq cf buffer-file-name)
(setq pf (ex-next nil t))) (if (and (null cf) (string-match "[^\\]%\\|\\`%" cmd))
(error "No current file to substitute for `%%'"))
(if (and (null pf) (string-match "[^\\]#\\|\\`#" cmd))
(error "No alternate file to substitute for `#'"))
(save-excursion
(set-buffer (get-buffer-create viper-ex-tmp-buf-name))
(erase-buffer)
(insert cmd)
(goto-char (point-min))
(while (re-search-forward "%\\|#" nil t)
(let ((data (match-data))
(char (buffer-substring (match-beginning 0) (match-end 0))))
(if (viper-looking-back (concat "\\\\" char))
(replace-match char)
(store-match-data data)
(if (string= char "%")
(replace-match cf)
(replace-match pf)))))
(end-of-line)
(setq ret (buffer-substring (point-min) (point)))
(message "%s" ret))
ret))
(defun viper-get-ex-file ()
(let (prompt)
(setq ex-file nil
ex-variant nil
ex-append nil
ex-offset nil
ex-cmdfile nil
ex-cmdfile-args "")
(save-excursion
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(skip-chars-forward " \t")
(if (looking-at "!")
(if (and (not (viper-looking-back "[ \t]"))
(not (string= ex-token "read")))
(progn
(setq ex-variant t)
(forward-char 1)
(skip-chars-forward " \t"))
(setq ex-cmdfile t)
(forward-char 1)
(skip-chars-forward " \t")))
(if (looking-at ">>")
(progn
(setq ex-append t
ex-variant t)
(forward-char 2)
(skip-chars-forward " \t")))
(if (looking-at "+")
(progn
(forward-char 1)
(set-mark (point))
(re-search-forward "[ \t\n]")
(backward-char 1)
(setq ex-offset (buffer-substring (point) (mark t)))
(forward-char 1)
(skip-chars-forward " \t")))
(if (member ex-token '("read" "write" "edit" "visual" "next"))
(progn
(setq ex-file (buffer-substring (point) (1- (point-max))))
(setq ex-file
(if (string-match
(if (string= ex-token "edit")
"[^ \t\n]+\\([ \t]+[^ \t\n]+\\)*"
"[^ \t\n]+")
ex-file)
(progn
(setq viper-incomplete-ex-cmd nil)
(setq ex-cmdfile-args
(substring ex-file (match-end 0) nil))
(substring ex-file (match-beginning 0) (match-end 0))
)
""))
(delete-region (point) (1- (point-max)))
))
(goto-char (point-max))
(skip-chars-backward " \t\n")
(setq prompt (buffer-substring (point-min) (point)))
))
(setq viper-last-ex-prompt prompt)
(if viper-incomplete-ex-cmd
(setq ex-file (viper-ex-read-file-name (format ":%s " prompt)))
(setq ex-file (or ex-file "")))
))
(defun viper-complete-filename-or-exit ()
(interactive)
(setq viper-keep-reading-filename t)
(cond ((ex-cmd-accepts-multiple-files-p ex-token) (exit-minibuffer))
((viper-looking-back "^[ \t]*!.*")
(setq ex-cmdfile t)
(insert " "))
(t
(setq ex-cmdfile nil)
(minibuffer-complete-word))))
(defun viper-handle-! ()
(interactive)
(if (and (string=
(buffer-string) (viper-abbreviate-file-name default-directory))
(member ex-token '("read" "write")))
(erase-buffer))
(insert "!"))
(defun ex-cmd-accepts-multiple-files-p (token)
(member token '("edit" "next" "Next")))
(defun viper-ex-read-file-name (prompt)
(let* ((str "")
(minibuffer-local-completion-map
(copy-keymap minibuffer-local-completion-map))
beg end cont val)
(viper-add-keymap ex-read-filename-map
(if viper-emacs-p
minibuffer-local-completion-map
read-file-name-map))
(setq cont (setq viper-keep-reading-filename t))
(while cont
(setq viper-keep-reading-filename nil
val (read-file-name (concat prompt str) nil default-directory))
(setq val (expand-file-name val))
(if (and (string-match " " val)
(ex-cmd-accepts-multiple-files-p ex-token))
(setq val (concat "\"" val "\"")))
(setq str (concat str (if (equal val "") "" " ")
val (if (equal val "") "" " ")))
(setq cont (and viper-keep-reading-filename
(ex-cmd-accepts-multiple-files-p ex-token)))
)
(setq beg (string-match "[^ \t]" str) end (string-match "[ \t]*$" str)) (if (member ex-token '("read" "write"))
(if (string-match "[\t ]*!" str)
(progn
(setq ex-cmdfile t)
(setq beg (1+ beg))
(setq viper-last-ex-prompt
(concat viper-last-ex-prompt " !")))))
(substring str (or beg 0) end)))
(defun viper-undisplayed-files ()
(mapcar
(lambda (b)
(if (null (get-buffer-window b))
(let ((f (buffer-file-name b)))
(if f f
(if ex-cycle-through-non-files
(let ((s (buffer-name b)))
(if (string= " " (substring s 0 1))
nil
s))
nil)))
nil))
(buffer-list)))
(defun ex-args ()
(let ((l (viper-undisplayed-files))
(args "")
(file-count 1))
(while (not (null l))
(if (car l)
(setq args (format "%s %d) %s\n" args file-count (car l))
file-count (1+ file-count)))
(setq l (cdr l)))
(if (string= args "")
(message "All files are already displayed")
(save-excursion
(save-window-excursion
(with-output-to-temp-buffer " *viper-info*"
(princ "\n\nThese files are not displayed in any window.\n")
(princ "\n=============\n")
(princ args)
(princ "\n=============\n")
(princ "\nThe numbers can be given as counts to :next. ")
(princ "\n\nPress any key to continue...\n\n"))
(viper-read-event))))))
(defun ex-cd ()
(viper-get-ex-file)
(if (string= ex-file "")
(setq ex-file "~"))
(setq default-directory (file-name-as-directory (expand-file-name ex-file))))
(defun ex-copy (del-flag)
(viper-default-ex-addresses)
(let ((address (viper-get-ex-address))
(end (car ex-addresses)) (beg (car (cdr ex-addresses))))
(goto-char end)
(save-excursion
(push-mark beg t)
(viper-enlarge-region (mark t) (point))
(if del-flag
(kill-region (point) (mark t))
(copy-region-as-kill (point) (mark t)))
(if ex-flag
(progn
(with-output-to-temp-buffer " *copy text*"
(princ
(if (or del-flag ex-g-flag ex-g-variant)
(current-kill 0)
(buffer-substring (point) (mark t)))))
(condition-case nil
(progn
(read-string "[Hit return to confirm] ")
(save-excursion (kill-buffer " *copy text*")))
(quit (save-excursion (kill-buffer " *copy text*"))
(signal 'quit nil))))))
(if (= address 0)
(goto-char (point-min))
(goto-char address)
(forward-line 1))
(insert (current-kill 0))))
(defun ex-delete ()
(viper-default-ex-addresses)
(viper-get-ex-buffer)
(let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))))
(if (> beg end) (error viper-FirstAddrExceedsSecond))
(save-excursion
(viper-enlarge-region beg end)
(exchange-point-and-mark)
(if ex-count
(progn
(set-mark (point))
(forward-line (1- ex-count)))
(set-mark end))
(viper-enlarge-region (point) (mark t))
(if ex-flag
(progn
(with-output-to-temp-buffer " *delete text*"
(princ (buffer-substring (point) (mark t))))
(condition-case nil
(read-string "[Hit return to confirm] ")
(quit
(save-excursion (kill-buffer " *delete text*"))
(error "")))
(save-excursion (kill-buffer " *delete text*")))
(if ex-buffer
(cond ((viper-valid-register ex-buffer '(Letter))
(viper-append-to-register
(downcase ex-buffer) (point) (mark t)))
((viper-valid-register ex-buffer)
(copy-to-register ex-buffer (point) (mark t) nil))
(t (error viper-InvalidRegister ex-buffer))))
(kill-region (point) (mark t))))))
(defun ex-edit (&optional file)
(if (not file)
(viper-get-ex-file))
(cond ((and (string= ex-file "") buffer-file-name)
(setq ex-file (viper-abbreviate-file-name (buffer-file-name))))
((string= ex-file "")
(error viper-NoFileSpecified)))
(if (null (setq file (get-file-buffer ex-file)))
(progn
(ex-find-file
(ex-expand-filsyms ex-file (current-buffer)))
(or (eq major-mode 'dired-mode)
(viper-change-state-to-vi))
(goto-char (point-min)))
(switch-to-buffer file))
(if ex-offset
(progn
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(delete-region (point-min) (point-max))
(insert ex-offset "\n")
(goto-char (point-min)))
(goto-char (viper-get-ex-address))
(beginning-of-line)))
(ex-fixup-history viper-last-ex-prompt ex-file))
(defun ex-find-file (filespec)
(let ((nonstandard-filename-chars "[^-a-zA-Z0-9_./,~$\\]"))
(cond ((file-exists-p filespec) (find-file filespec))
((string-match nonstandard-filename-chars filespec)
(mapcar 'find-file (funcall viper-glob-function filespec)))
(t (find-file filespec)))
))
(defun ex-global (variant)
(let ((gcommand ex-token))
(if (or ex-g-flag ex-g-variant)
(error "`%s' within `global' is not allowed" gcommand)
(if variant
(setq ex-g-flag nil
ex-g-variant t)
(setq ex-g-flag t
ex-g-variant nil)))
(viper-get-ex-pat)
(if (null ex-token)
(error "`%s': Missing regular expression" gcommand)))
(if (string= ex-token "")
(if (null viper-s-string)
(error viper-NoPrevSearch)
(setq ex-g-pat viper-s-string))
(setq ex-g-pat ex-token
viper-s-string ex-token))
(if (null ex-addresses)
(setq ex-addresses (list (point-max) (point-min)))
(viper-default-ex-addresses))
(let ((marks nil)
(mark-count 0)
(end (car ex-addresses))
(beg (car (cdr ex-addresses)))
com-str)
(if (> beg end) (error viper-FirstAddrExceedsSecond))
(save-excursion
(viper-enlarge-region beg end)
(exchange-point-and-mark)
(let ((cont t) (limit (point-marker)))
(exchange-point-and-mark)
(beginning-of-line)
(if (eobp) (viper-backward-char-carefully))
(while (and cont (not (bobp)) (>= (point) limit))
(beginning-of-line)
(set-mark (point))
(end-of-line)
(let ((found (re-search-backward ex-g-pat (mark t) t)))
(if (or (and ex-g-flag found)
(and ex-g-variant (not found)))
(progn
(end-of-line)
(setq mark-count (1+ mark-count))
(setq marks (cons (point-marker) marks)))))
(beginning-of-line)
(if (bobp) (setq cont nil)
(forward-line -1)
(end-of-line)))))
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(setq com-str (buffer-substring (1+ (point)) (1- (point-max)))))
(while marks
(goto-char (car marks))
(viper-ex nil com-str)
(setq mark-count (1- mark-count))
(setq marks (cdr marks)))))
(defun ex-goto ()
(if (null ex-addresses)
(setq ex-addresses (cons (point) nil)))
(push-mark (point) t)
(goto-char (car ex-addresses))
(beginning-of-line)
)
(defun ex-line (com)
(viper-default-ex-addresses)
(viper-get-ex-count)
(let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))) point)
(if (> beg end) (error viper-FirstAddrExceedsSecond))
(save-excursion
(viper-enlarge-region beg end)
(exchange-point-and-mark)
(if ex-count
(progn
(set-mark (point))
(forward-line ex-count)))
(if ex-flag
(progn
(with-output-to-temp-buffer " *join text*"
(princ (buffer-substring (point) (mark t))))
(condition-case nil
(progn
(read-string "[Hit return to confirm] ")
(ex-line-subr com (point) (mark t)))
(quit (ding)))
(save-excursion (kill-buffer " *join text*")))
(ex-line-subr com (point) (mark t)))
(setq point (point)))
(goto-char (1- point))
(beginning-of-line)))
(defun ex-line-subr (com beg end)
(cond ((string= com "join")
(goto-char (min beg end))
(while (and (not (eobp)) (< (point) (max beg end)))
(end-of-line)
(if (and (<= (point) (max beg end)) (not (eobp)))
(progn
(forward-line 1)
(delete-region (point) (1- (point)))
(if (not ex-variant) (fixup-whitespace))))))
((or (string= com "right") (string= com "left"))
(indent-rigidly
(min beg end) (max beg end)
(if (string= com "right") viper-shift-width (- viper-shift-width)))
(goto-char (max beg end))
(end-of-line)
(viper-forward-char-carefully))))
(defun ex-mark (&optional name)
(let (char)
(if (null ex-addresses)
(setq ex-addresses
(cons (point) nil)))
(if name
(if (eq 1 (length name))
(setq char (string-to-char name))
(error "`%s': Spurious text \"%s\" after mark name"
name (substring name 1) viper-SpuriousText))
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(skip-chars-forward " \t")
(if (looking-at "[a-z]")
(progn
(setq char (following-char))
(forward-char 1)
(skip-chars-forward " \t")
(if (not (looking-at "[\n|]"))
(error "`%s': %s" ex-token viper-SpuriousText)))
(error "`%s' requires a following letter" ex-token))))
(save-excursion
(goto-char (car ex-addresses))
(point-to-register (viper-int-to-char (1+ (- char ?a)))))))
(defun ex-next (cycle-other-window &optional find-alt-file)
(catch 'ex-edit
(let (count l)
(if (not find-alt-file)
(progn
(viper-get-ex-file)
(if (or (char-or-string-p ex-offset)
(and (not (string= "" ex-file))
(not (string-match "^[0-9]+$" ex-file))))
(progn
(ex-edit t)
(throw 'ex-edit nil))
(setq count (string-to-int ex-file))
(if (= count 0) (setq count 1))
(if (< count 0) (error "Usage: `next <count>' (count >= 0)"))))
(setq count 1))
(setq l (viper-undisplayed-files))
(while (> count 0)
(while (and (not (null l)) (null (car l)))
(setq l (cdr l)))
(setq count (1- count))
(if (> count 0)
(setq l (cdr l))))
(if find-alt-file (car l)
(progn
(if (and (car l) (get-file-buffer (car l)))
(let* ((w (if cycle-other-window
(get-lru-window) (selected-window)))
(b (window-buffer w)))
(set-window-buffer w (get-file-buffer (car l)))
(bury-buffer b)
(ex-fixup-history viper-last-ex-prompt ex-file))
(error "Not that many undisplayed files")))))))
(defun ex-next-related-buffer (direction &optional no-recursion)
(viper-ring-rotate1 viper-related-files-and-buffers-ring direction)
(let ((file-or-buffer-name
(viper-current-ring-item viper-related-files-and-buffers-ring))
(old-ring viper-related-files-and-buffers-ring)
(old-win (selected-window))
skip-rest buf wind)
(or (and (ring-p viper-related-files-and-buffers-ring)
(> (ring-length viper-related-files-and-buffers-ring) 0))
(error "This buffer has no related files or buffers"))
(or (stringp file-or-buffer-name)
(error
"File and buffer names must be strings, %S" file-or-buffer-name))
(setq buf (cond ((get-buffer file-or-buffer-name))
((file-exists-p file-or-buffer-name)
(find-file-noselect file-or-buffer-name))
))
(if (not (viper-buffer-live-p buf))
(error "Didn't find buffer %S or file %S"
file-or-buffer-name
(viper-abbreviate-file-name
(expand-file-name file-or-buffer-name))))
(if (equal buf (current-buffer))
(or no-recursion
(progn
(setq skip-rest t)
(ex-next-related-buffer direction 'norecursion))))
(if skip-rest
()
(if (setq wind (viper-get-visible-buffer-window buf))
()
(setq wind (get-lru-window (if viper-xemacs-p nil 'visible)))
(set-window-buffer wind buf))
(if (viper-window-display-p)
(progn
(raise-frame (window-frame wind))
(if (equal (window-frame wind) (window-frame old-win))
(save-window-excursion (select-window wind) (sit-for 1))
(select-window wind)))
(save-window-excursion (select-window wind) (sit-for 1)))
(save-excursion
(set-buffer buf)
(setq viper-related-files-and-buffers-ring old-ring))
(setq viper-local-search-start-marker (point-marker))
)))
(defun ex-preserve ()
(message "Autosaving all buffers that need to be saved...")
(do-auto-save t))
(defun ex-put ()
(let ((point (if (null ex-addresses) (point) (car ex-addresses))))
(viper-get-ex-buffer)
(setq viper-use-register ex-buffer)
(goto-char point)
(if (bobp) (viper-Put-back 1) (viper-put-back 1))))
(defun ex-pwd ()
(message default-directory))
(defun ex-quit ()
(save-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(if (looking-at "!") (forward-char 1)))
(if (< viper-expert-level 3)
(save-buffers-kill-emacs)
(kill-buffer (current-buffer))))
(defun ex-read ()
(viper-get-ex-file)
(let ((point (if (null ex-addresses) (point) (car ex-addresses)))
command)
(goto-char point)
(viper-add-newline-at-eob-if-necessary)
(if (not (or (bobp) (eobp))) (forward-line 1))
(if (and (not ex-variant) (string= ex-file ""))
(progn
(if (null buffer-file-name)
(error viper-NoFileSpecified))
(setq ex-file buffer-file-name)))
(if ex-cmdfile
(progn
(setq command
(ex-expand-filsyms (concat ex-file ex-cmdfile-args)
(current-buffer)))
(shell-command command t))
(insert-file-contents ex-file)))
(ex-fixup-history viper-last-ex-prompt ex-file ex-cmdfile-args))
(defun ex-fixup-history (&rest args)
(setq viper-ex-history
(cons (mapconcat 'identity args " ") (cdr viper-ex-history))))
(defun ex-recover ()
(viper-get-ex-file)
(if (or ex-append ex-offset)
(error "`recover': %s" viper-SpuriousText))
(if (string= ex-file "")
(progn
(if (null buffer-file-name)
(error "This buffer isn't visiting any file"))
(setq ex-file buffer-file-name))
(setq ex-file (expand-file-name ex-file)))
(if (and (not (string= ex-file (buffer-file-name)))
(buffer-modified-p)
(not ex-variant))
(error "No write since last change \(:rec! overrides\)"))
(recover-file ex-file))
(defun ex-rewind ()
(message
"Use `:n <count>' instead. Counts are obtained from the `:args' command"))
(defun ex-set-read-variable ()
(let ((minibuffer-local-completion-map
(copy-keymap minibuffer-local-completion-map))
(cursor-in-echo-area t)
str batch)
(define-key
minibuffer-local-completion-map " " 'minibuffer-complete-and-exit)
(define-key minibuffer-local-completion-map "=" 'exit-minibuffer)
(if (viper-set-unread-command-events
(ex-get-inline-cmd-args "[ \t]*[a-zA-Z]*[ \t]*" nil "\C-m"))
(progn
(setq batch t)
(viper-set-unread-command-events ?\C-m)))
(message ":set <Variable> [= <Value>]")
(or batch (sit-for 2))
(while (string-match "^[ \\t\\n]*$"
(setq str
(completing-read ":set " ex-variable-alist)))
(message ":set <Variable> [= <Value>]")
(or (viper-set-unread-command-events "") (sit-for 2))
) str))
(defun ex-set ()
(let ((var (ex-set-read-variable))
(val 0)
(set-cmd "setq")
(ask-if-save t)
(auto-cmd-label "; don't touch or else...")
(delete-turn-on-auto-fill-pattern
"([ \t]*add-hook[ \t]+'viper-insert-state-hook[ \t]+'turn-on-auto-fill.*)")
actual-lisp-cmd lisp-cmd-del-pattern
val2 orig-var)
(setq orig-var var)
(cond ((string= var "all")
(setq ask-if-save nil
set-cmd nil))
((member var '("ai" "autoindent"))
(setq var "viper-auto-indent"
set-cmd "setq"
ask-if-save nil
val "t"))
((member var '("ai-g" "autoindent-global"))
(kill-local-variable 'viper-auto-indent)
(setq var "viper-auto-indent"
set-cmd "setq-default"
val "t"))
((member var '("noai" "noautoindent"))
(setq var "viper-auto-indent"
ask-if-save nil
val "nil"))
((member var '("noai-g" "noautoindent-global"))
(kill-local-variable 'viper-auto-indent)
(setq var "viper-auto-indent"
set-cmd "setq-default"
val "nil"))
((member var '("ic" "ignorecase"))
(setq var "viper-case-fold-search"
val "t"))
((member var '("noic" "noignorecase"))
(setq var "viper-case-fold-search"
val "nil"))
((member var '("ma" "magic"))
(setq var "viper-re-search"
val "t"))
((member var '("noma" "nomagic"))
(setq var "viper-re-search"
val "nil"))
((member var '("ro" "readonly"))
(setq var "buffer-read-only"
val "t"))
((member var '("noro" "noreadonly"))
(setq var "buffer-read-only"
val "nil"))
((member var '("sm" "showmatch"))
(setq var "blink-matching-paren"
val "t"))
((member var '("nosm" "noshowmatch"))
(setq var "blink-matching-paren"
val "nil"))
((member var '("ws" "wrapscan"))
(setq var "viper-search-wrap-around-t"
val "t"))
((member var '("nows" "nowrapscan"))
(setq var "viper-search-wrap-around-t"
val "nil")))
(if (and set-cmd (eq val 0)) (let ((cursor-in-echo-area t))
(message ":set %s = <Value>" var)
(or (viper-set-unread-command-events "") (sit-for 2))
(setq val (read-string (format ":set %s = " var)))
(ex-fixup-history "set" orig-var val)
(if (member var
'("sw" "shiftwidth"
"ts" "tabstop"
"ts-g" "tabstop-global"
"wm" "wrapmargin"))
(condition-case nil
(or (numberp (setq val2 (car (read-from-string val))))
(error "%s: Invalid value, numberp, %S" var val))
(error
(error "%s: Invalid value, numberp, %S" var val))))
(cond
((member var '("sw" "shiftwidth"))
(setq var "viper-shift-width"))
((member var '("ts" "tabstop"))
(setq var "tab-width"
set-cmd "setq"
ask-if-save nil))
((member var '("ts-g" "tabstop-global"))
(kill-local-variable 'tab-width)
(setq var "tab-width"
set-cmd "setq-default"))
((member var '("wm" "wrapmargin"))
(kill-local-variable 'fill-column)
(setq var "fill-column"
val (format "(- (window-width) %s)" val)
set-cmd "setq-default"))
((member var '("sh" "shell"))
(setq var "explicit-shell-file-name"
val (format "\"%s\"" val)))))
(ex-fixup-history "set" orig-var))
(if set-cmd
(setq actual-lisp-cmd
(format "\n(%s %s %s) %s" set-cmd var val auto-cmd-label)
lisp-cmd-del-pattern
(format "^\n?[ \t]*([ \t]*%s[ \t]+%s[ \t].*)[ \t]*%s"
set-cmd var auto-cmd-label)))
(if (and ask-if-save
(y-or-n-p (format "Do you want to save this setting in %s "
viper-custom-file-name)))
(progn
(viper-save-string-in-file
actual-lisp-cmd viper-custom-file-name
lisp-cmd-del-pattern)
(if (string= var "fill-column")
(if (> val2 0)
(viper-save-string-in-file
(concat
"(add-hook 'viper-insert-state-hook 'turn-on-auto-fill) "
auto-cmd-label)
viper-custom-file-name
delete-turn-on-auto-fill-pattern)
(viper-save-string-in-file
nil viper-custom-file-name delete-turn-on-auto-fill-pattern)
(viper-save-string-in-file
nil viper-custom-file-name
lisp-cmd-del-pattern)
))
))
(if set-cmd
(message "%s %s %s"
set-cmd var
(if (string-match "^[ \t]*$" val)
(format "%S" val)
val)))
(if actual-lisp-cmd
(eval (car (read-from-string actual-lisp-cmd))))
(if (string= var "fill-column")
(if (> val2 0)
(auto-fill-mode 1)
(auto-fill-mode -1)))
(if (string= var "all") (ex-show-vars))
))
(defun ex-get-inline-cmd-args (regex-forw &optional chars-back replace-str)
(save-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(goto-char (point-min))
(re-search-forward regex-forw nil t)
(let ((beg (point))
end)
(goto-char (point-max))
(if chars-back
(skip-chars-backward chars-back)
(skip-chars-backward " \t\n\C-m"))
(setq end (point))
(goto-char beg)
(if replace-str
(while (re-search-forward " +" nil t)
(replace-match replace-str nil t)
(viper-forward-char-carefully)))
(goto-char end)
(buffer-substring beg end))))
(defun ex-shell ()
(shell))
(defun ex-help ()
(condition-case nil
(progn
(pop-to-buffer (get-buffer-create "*info*"))
(info (if viper-xemacs-p "viper.info" "viper"))
(message "Type `i' to search for a specific topic"))
(error (beep 1)
(with-output-to-temp-buffer " *viper-info*"
(princ (format "
The Info file for Viper does not seem to be installed.
This file is part of the standard distribution of %sEmacs.
Please contact your system administrator. "
(if viper-xemacs-p "X" "")
))))))
(defun ex-source ()
(viper-get-ex-file)
(if (string= ex-file "")
(load viper-custom-file-name)
(load ex-file)))
(defun ex-substitute (&optional repeat r-flag)
(let ((opt-g nil)
(opt-c nil)
(matched-pos nil)
(case-fold-search viper-case-fold-search)
delim pat repl)
(if repeat (setq ex-token nil) (setq delim (viper-get-ex-pat)))
(if (null ex-token)
(progn
(setq pat (if r-flag viper-s-string ex-reg-exp))
(or (stringp pat)
(error "No previous pattern to use in substitution"))
(setq repl ex-repl
delim (string-to-char pat)))
(setq pat (if (string= ex-token "") viper-s-string ex-token))
(setq viper-s-string pat
ex-reg-exp pat)
(setq delim (viper-get-ex-pat))
(if (null ex-token)
(setq ex-token ""
ex-repl "")
(setq repl ex-token
ex-repl ex-token)))
(while (viper-get-ex-opt-gc delim)
(if (string= ex-token "g") (setq opt-g t) (setq opt-c t)))
(viper-get-ex-count)
(if ex-count
(save-excursion
(if ex-addresses (goto-char (car ex-addresses)))
(set-mark (point))
(forward-line (1- ex-count))
(setq ex-addresses (cons (point) (cons (mark t) nil))))
(if (null ex-addresses)
(setq ex-addresses (cons (point) (cons (point) nil)))
(if (null (cdr ex-addresses))
(setq ex-addresses (cons (car ex-addresses) ex-addresses)))))
(let ((beg (car ex-addresses))
(end (car (cdr ex-addresses)))
eol-mark)
(save-excursion
(viper-enlarge-region beg end)
(let ((limit (save-excursion
(goto-char (max (point) (mark t)))
(point-marker))))
(goto-char (min (point) (mark t)))
(while (< (point) limit)
(save-excursion
(end-of-line)
(viper-forward-char-carefully)
(setq eol-mark (point-marker)))
(beginning-of-line)
(if opt-g
(progn
(while (and (not (eolp))
(re-search-forward pat eol-mark t))
(if (or (not opt-c)
(progn
(viper-put-on-search-overlay (match-beginning 0)
(match-end 0))
(y-or-n-p "Replace? ")))
(progn
(viper-hide-search-overlay)
(setq matched-pos (point))
(if (not (stringp repl))
(error "Can't perform Ex substitution: No previous replacement pattern"))
(replace-match repl t))))
(end-of-line)
(viper-forward-char-carefully))
(if (null pat)
(error
"Can't repeat Ex substitution: No previous regular expression"))
(if (and (re-search-forward pat eol-mark t)
(or (not opt-c)
(progn
(viper-put-on-search-overlay (match-beginning 0)
(match-end 0))
(y-or-n-p "Replace? "))))
(progn
(viper-hide-search-overlay)
(setq matched-pos (point))
(if (not (stringp repl))
(error "Can't perform Ex substitution: No previous replacement pattern"))
(replace-match repl t)))
(goto-char eol-mark)
)))))
(if matched-pos (goto-char matched-pos))
(beginning-of-line)
(if opt-c (message "done"))))
(defun ex-tag ()
(let (tag)
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(skip-chars-forward " \t")
(set-mark (point))
(skip-chars-forward "^ |\t\n")
(setq tag (buffer-substring (mark t) (point))))
(if (not (string= tag "")) (setq ex-tag tag))
(viper-change-state-to-emacs)
(condition-case conds
(progn
(if (string= tag "")
(find-tag ex-tag t)
(find-tag-other-window ex-tag))
(viper-change-state-to-vi))
(error
(viper-change-state-to-vi)
(viper-message-conditions conds)))))
(defun ex-write (q-flag)
(viper-default-ex-addresses t)
(viper-get-ex-file)
(let ((end (car ex-addresses))
(beg (car (cdr ex-addresses)))
(orig-buf (current-buffer))
(orig-buf-file-name (buffer-file-name))
(orig-buf-name (buffer-name))
(buff-changed-p (buffer-modified-p))
temp-buf writing-same-file region
file-exists writing-whole-file)
(if (> beg end) (error viper-FirstAddrExceedsSecond))
(if ex-cmdfile
(progn
(viper-enlarge-region beg end)
(shell-command-on-region (point) (mark t)
(concat ex-file ex-cmdfile-args)))
(if (and (string= ex-file "") (not (buffer-file-name)))
(setq ex-file
(read-file-name
(format "Buffer %s isn't visiting any file. File to save in: "
(buffer-name)))))
(setq writing-whole-file (and (= (point-min) beg) (= (point-max) end))
ex-file (if (string= ex-file "")
(buffer-file-name)
(expand-file-name ex-file)))
(if (and (file-directory-p ex-file)
buffer-file-name
(not (file-directory-p buffer-file-name)))
(setq ex-file
(concat (file-name-as-directory ex-file)
(file-name-nondirectory buffer-file-name))))
(setq file-exists (file-exists-p ex-file)
writing-same-file (string= ex-file (buffer-file-name)))
(if (and writing-whole-file writing-same-file)
(if (not (buffer-modified-p))
(message "(No changes need to be saved)")
(viper-maybe-checkout (current-buffer))
(save-buffer)
(save-restriction
(widen)
(ex-write-info file-exists ex-file (point-min) (point-max))
))
(if (and file-exists (not writing-same-file)
(not (yes-or-no-p
(format "File %s exists. Overwrite? " ex-file))))
(error "Quit"))
(unwind-protect
(save-excursion
(viper-enlarge-region beg end)
(setq region (buffer-substring (point) (mark t)))
(setq temp-buf (get-buffer-create " *ex-write*"))
(set-buffer temp-buf)
(if viper-xemacs-p
(set-visited-file-name ex-file)
(set-visited-file-name ex-file 'noquerry))
(erase-buffer)
(if (and file-exists ex-append)
(insert-file-contents ex-file))
(goto-char (point-max))
(insert region)
(viper-maybe-checkout (current-buffer))
(setq selective-display nil)
(save-buffer)
(ex-write-info
file-exists ex-file (point-min) (point-max))
)
(set-buffer temp-buf)
(set-buffer-modified-p nil)
(kill-buffer temp-buf)
(set-buffer orig-buf)))
(if (and (buffer-file-name) writing-same-file)
(set-visited-file-modtime))
(or writing-whole-file
(not writing-same-file)
(progn
(sit-for 2)
(message "Warning: you have saved only part of the buffer!")
(set-buffer-modified-p t)))
(if q-flag
(if (< viper-expert-level 2)
(save-buffers-kill-emacs)
(kill-buffer (current-buffer))))
)))
(defun ex-write-info (exists file-name beg end)
(message "`%s'%s %d lines, %d characters"
(viper-abbreviate-file-name file-name)
(if exists "" " [New file]")
(count-lines beg (min (1+ end) (point-max)))
(- end beg)))
(defun ex-yank ()
(viper-default-ex-addresses)
(viper-get-ex-buffer)
(let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))))
(if (> beg end) (error viper-FirstAddrExceedsSecond))
(save-excursion
(viper-enlarge-region beg end)
(exchange-point-and-mark)
(if (or ex-g-flag ex-g-variant)
(error "Can't execute `yank' within `global'"))
(if ex-count
(progn
(set-mark (point))
(forward-line (1- ex-count)))
(set-mark end))
(viper-enlarge-region (point) (mark t))
(if ex-flag (error "`yank': %s" viper-SpuriousText))
(if ex-buffer
(cond ((viper-valid-register ex-buffer '(Letter))
(viper-append-to-register
(downcase ex-buffer) (point) (mark t)))
((viper-valid-register ex-buffer)
(copy-to-register ex-buffer (point) (mark t) nil))
(t (error viper-InvalidRegister ex-buffer))))
(copy-region-as-kill (point) (mark t)))))
(defun ex-command ()
(let (command)
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(skip-chars-forward " \t")
(setq command (buffer-substring (point) (point-max)))
(end-of-line))
(setq command (ex-expand-filsyms command (current-buffer)))
(if (and (> (length command) 0) (string= "!" (substring command 0 1)))
(if viper-ex-last-shell-com
(setq command
(concat viper-ex-last-shell-com (substring command 1)))
(error "No previous shell command")))
(setq viper-ex-last-shell-com command)
(if (null ex-addresses)
(shell-command command)
(let ((end (car ex-addresses)) (beg (car (cdr ex-addresses))))
(if (null beg) (setq beg end))
(save-excursion
(goto-char beg)
(set-mark end)
(viper-enlarge-region (point) (mark t))
(shell-command-on-region (point) (mark t) command t))
(goto-char beg)))))
(defun ex-compile ()
"Reads args from the command line, then runs make with the args.
If no args are given, then it runs the last compile command.
Type 'mak ' (including the space) to run make with no args."
(let (args)
(save-window-excursion
(setq viper-ex-work-buf (get-buffer-create viper-ex-work-buf-name))
(set-buffer viper-ex-work-buf)
(setq args (buffer-substring (point) (point-max)))
(end-of-line))
(if (string= "\n" (substring args (1- (length args))))
(setq args (substring args 0 (1- (length args)))))
(setq args
(if (string= "" args)
(if (boundp 'compile-command)
compile-command
ex-compile-command)
(concat ex-compile-command " " args)))
(compile args)
))
(defun ex-line-no ()
(message "%d"
(1+ (count-lines
(point-min)
(if (null ex-addresses) (point-max) (car ex-addresses))))))
(defun viper-info-on-file ()
(interactive)
(let ((pos1 (viper-line-pos 'start))
(pos2 (viper-line-pos 'end))
lines file info)
(setq lines (count-lines (point-min) (viper-line-pos 'end))
file (if (buffer-file-name)
(concat (viper-abbreviate-file-name (buffer-file-name)) ":")
(concat (buffer-name) " [Not visiting any file]:"))
info (format "line=%d/%d pos=%d/%d col=%d %s"
(if (= pos1 pos2)
(1+ lines)
lines)
(count-lines (point-min) (point-max))
(point) (1- (point-max))
(1+ (current-column))
(if (buffer-modified-p) "[Modified]" "[Unchanged]")))
(if (< (+ 1 (length info) (length file))
(window-width (minibuffer-window)))
(message (concat file " " info))
(save-window-excursion
(with-output-to-temp-buffer " *viper-info*"
(princ (concat "\n" file "\n\n\t" info "\n\n")))
(let ((inhibit-quit t))
(viper-set-unread-command-events (viper-read-event)))
(kill-buffer " *viper-info*")))
))
(defun ex-show-vars ()
(with-output-to-temp-buffer " *viper-info*"
(princ (if viper-auto-indent
"autoindent (local)\n" "noautoindent (local)\n"))
(princ (if (default-value 'viper-auto-indent)
"autoindent (global) \n" "noautoindent (global) \n"))
(princ (if viper-case-fold-search "ignorecase\n" "noignorecase\n"))
(princ (if viper-re-search "magic\n" "nomagic\n"))
(princ (if buffer-read-only "readonly\n" "noreadonly\n"))
(princ (if blink-matching-paren "showmatch\n" "noshowmatch\n"))
(princ (if viper-search-wrap-around-t "wrapscan\n" "nowrapscan\n"))
(princ (format "shiftwidth \t\t= %S\n" viper-shift-width))
(princ (format "tabstop (local) \t= %S\n" tab-width))
(princ (format "tabstop (global) \t= %S\n" (default-value 'tab-width)))
(princ (format "wrapmargin (local) \t= %S\n"
(- (window-width) fill-column)))
(princ (format "wrapmargin (global) \t= %S\n"
(- (window-width) (default-value 'fill-column))))
(princ (format "shell \t\t\t= %S\n" (if (boundp 'explicit-shell-file-name)
explicit-shell-file-name
'none)))
))