-;;; hippie-exp.el --- expand text trying various ways to find its expansion.
+;;; hippie-exp.el --- expand text trying various ways to find its expansion
;; Copyright (C) 1992 Free Software Foundation, Inc.
;; Author: Anders Holst <aho@sans.kth.se>
-;; Last change: 6 August 1995
-;; Version: 1.4
-;; Keywords: abbrev
+;; Last change: 3 March 1998
+;; Version: 1.6
+;; Keywords: abbrev convenience
;; This file is part of GNU Emacs.
;; matching buffer names (as strings) or major modes (as atoms) of
;; buffers that should not be searched by the try-functions named
;; "-all-buffers".
+;; If set, the variable `hippie-expand-only-buffers' does the opposite
+;; of `hippie-expand-ignore-buffers', in that the search is restricted
+;; to only the kind of buffers listed.
+;; If the variable `hippie-expand-no-restriction' is non-nil, narrowed
+;; buffers are widened before they are searched.
+;; The variable `hippie-expand-dabbrev-skip-space' controls whether
+;; trailing spaces will be included in the abbreviation to search for,
+;; which then gives the same behavior as the original `dabbrev-expand'.
+;; The variable `hippie-expand-dabbrev-as-symbol' controls whether
+;; characters of syntax '_' is considered part of the words to expand
+;; dynamically.
;; See also the macro `make-hippie-expand-function' below.
;;
;; A short description of the current try-functions in this file:
;;; Code:
+(eval-when-compile (require 'comint))
+
+(defgroup hippie-expand nil
+ "Expand text trying various ways to find its expansion."
+ :link '(custom-manual "(autotype)Hippie Expand")
+ :link '(emacs-commentary-link "hippie-exp")
+ :group 'abbrev
+ :group 'convenience)
+
(defvar he-num -1)
(defvar he-string-beg (make-marker))
(defvar he-search-window ())
;;;###autoload
-(defvar hippie-expand-try-functions-list '(try-complete-file-name-partially
- try-complete-file-name
- try-expand-all-abbrevs
- try-expand-list
- try-expand-line
- try-expand-dabbrev
- try-expand-dabbrev-all-buffers
- try-expand-dabbrev-from-kill
- try-complete-lisp-symbol-partially
- try-complete-lisp-symbol)
+(defcustom hippie-expand-try-functions-list
+ '(try-complete-file-name-partially
+ try-complete-file-name
+ try-expand-all-abbrevs
+ try-expand-list
+ try-expand-line
+ try-expand-dabbrev
+ try-expand-dabbrev-all-buffers
+ try-expand-dabbrev-from-kill
+ try-complete-lisp-symbol-partially
+ try-complete-lisp-symbol)
"The list of expansion functions tried in order by `hippie-expand'.
To change the behavior of `hippie-expand', remove, change the order of,
-or insert functions in this list.")
+or insert functions in this list."
+ :type '(repeat function)
+ :group 'hippie-expand)
+
+;;;###autoload
+(defcustom hippie-expand-verbose t
+ "*Non-nil makes `hippie-expand' output which function it is trying."
+ :type 'boolean
+ :group 'hippie-expand)
+
+;;;###autoload
+(defcustom hippie-expand-dabbrev-skip-space nil
+ "*Non-nil means tolerate trailing spaces in the abbreviation to expand."
+ :group 'hippie-expand
+ :type 'boolean)
;;;###autoload
-(defvar hippie-expand-verbose t
- "*Non-nil makes `hippie-expand' output which function it is trying.")
+(defcustom hippie-expand-dabbrev-as-symbol t
+ "*Non-nil means expand as symbols, i.e. syntax `_' is considered a letter."
+ :group 'hippie-expand
+ :type 'boolean)
;;;###autoload
-(defvar hippie-expand-max-buffers ()
+(defcustom hippie-expand-no-restriction t
+ "*Non-nil means that narrowed buffers are widened during search."
+ :group 'hippie-expand
+ :type 'boolean)
+
+;;;###autoload
+(defcustom hippie-expand-max-buffers ()
"*The maximum number of buffers (apart from the current) searched.
-If nil, all buffers are searched.")
+If nil, all buffers are searched."
+ :type '(choice (const :tag "All" nil)
+ integer)
+ :group 'hippie-expand)
;;;###autoload
-(defvar hippie-expand-ignore-buffers '("^ \\*.*\\*$" dired-mode)
+(defcustom hippie-expand-ignore-buffers '("^ \\*.*\\*$" dired-mode)
"*A list specifying which buffers not to search (if not current).
Can contain both regexps matching buffer names (as strings) and major modes
-\(as atoms)")
+\(as atoms)"
+ :type '(repeat (choice regexp (symbol :tag "Major Mode")))
+ :group 'hippie-expand)
+
+;;;###autoload
+(defcustom hippie-expand-only-buffers ()
+ "*A list specifying the only buffers to search (in addition to current).
+Can contain both regexps matching buffer names (as strings) and major modes
+\(as atoms). If non-NIL, this variable overrides the variable
+`hippie-expand-ignore-buffers'."
+ :type '(repeat (choice regexp (symbol :tag "Major Mode")))
+ :group 'hippie-expand)
;;;###autoload
(defun hippie-expand (arg)
(if (and hippie-expand-verbose
(not (window-minibuffer-p (selected-window))))
(message "Using %s"
- (prin1-to-string (nth he-num
- hippie-expand-try-functions-list))))))
+ (nth he-num hippie-expand-try-functions-list)))))
(if (and (>= he-num 0)
(eq (marker-buffer he-string-beg) (current-buffer)))
(progn
(defun he-init-string (beg end)
(set-marker he-string-beg beg)
(set-marker he-string-end end)
- (setq he-search-string (buffer-substring beg end)))
+ (setq he-search-string (buffer-substring-no-properties beg end)))
;; Resets the expanded region to its original contents.
(defun he-reset-string ()
str)
lst)))
-;; Check if STR matches any regexp in LST.
-;; Ignore possible non-strings in LST.
-(defun he-regexp-member (str lst)
- (while (and lst
- (or (not (stringp (car lst)))
- (not (string-match (car lst) str))))
- (setq lst (cdr lst)))
- lst)
+;; Check if current buffer matches any atom or regexp in LST.
+;; Atoms are interpreted as major modes, strings as regexps mathing the name.
+(defun he-buffer-member (lst)
+ (or (memq major-mode lst)
+ (progn
+ (while (and lst
+ (or (not (stringp (car lst)))
+ (not (string-match (car lst) (buffer-name)))))
+ (setq lst (cdr lst)))
+ lst)))
;; For the real hippie-expand enthusiast: A macro that makes it
;; possible to use many functions like hippie-expand, but with
"Construct a function similar to `hippie-expand'.
Make it use the expansion functions in TRY-LIST. An optional second
argument VERBOSE non-nil makes the function verbose."
- (` (function (lambda (arg)
- (, (concat
- "Try to expand text before point, using the following functions: \n"
- (mapconcat 'prin1-to-string (eval try-list) ", ")))
- (interactive "P")
- (let ((hippie-expand-try-functions-list (, try-list))
- (hippie-expand-verbose (, verbose)))
- (hippie-expand arg))))))
+ `(function (lambda (arg)
+ ,(concat
+ "Try to expand text before point, using the following functions: \n"
+ (mapconcat 'prin1-to-string (eval try-list) ", "))
+ (interactive "P")
+ (let ((hippie-expand-try-functions-list ,try-list)
+ (hippie-expand-verbose ,verbose))
+ (hippie-expand arg)))))
;;; Here follows the try-functions and their requisites:
(defvar he-file-name-chars
(cond ((memq system-type '(vax-vms axp-vms))
"-a-zA-Z0-9_/.,~^#$+=:\\[\\]")
- ((memq system-type '(ms-dos ms-windows))
+ ((memq system-type '(ms-dos windows-nt))
"-a-zA-Z0-9_/.,~^#$+=:\\\\")
(t ;; More strange file formats ?
"-a-zA-Z0-9_/.,~^#$+="))
"Characters that are considered part of the file name to expand.")
(defun he-file-name-beg ()
- (save-excursion
- (skip-chars-backward he-file-name-chars)
- (point)))
+ (let ((op (point)))
+ (save-excursion
+ (skip-chars-backward he-file-name-chars)
+ (if (> (skip-syntax-backward "w") 0) ;; No words with non-file chars
+ op
+ (point)))))
;; Thanks go to Richard Levitte <levitte@e.kth.se> who helped to make these
;; work under VMS, and to David Hughes <ukchugd@ukpmr.cs.philips.nl> who
(if (memq system-type '(vax-vms axp-vms))
(or (file-directory-p file)
(file-directory-p (concat file "[000000]")))
- (file-directory-p dir-part)))
+ (file-directory-p file)))
(defun he-concat-directory-file-name (dir-part name-part)
"Try to slam together two parts of a file specification, system dependently."
- (cond ((memq system-type '(axp-vms vax-vms))
+ (cond ((null dir-part) name-part)
+ ((memq system-type '(axp-vms vax-vms))
(if (and (string= (substring dir-part -1) "]")
(string= (substring name-part 0 2) "[."))
(concat (substring dir-part 0 -1) (substring name-part 1))
(concat dir-part name-part)))
- ((memq system-type '(ms-dos ms-windows))
+ ((memq system-type '(ms-dos w32))
(if (and (string-match "\\\\" dir-part)
(not (string-match "/" dir-part))
(= (aref name-part (1- (length name-part))) ?/))
t))))
(defun he-lisp-symbol-beg ()
- (let ((skips "-a-zA-Z0-9_."))
- (save-excursion
- (skip-chars-backward skips)
- (point))))
+ (save-excursion
+ (skip-syntax-backward "w_")
+ (point)))
(defun try-expand-line (old)
"Try to complete the current line to an entire line in the buffer.
string). It returns t if a new completion is found, nil otherwise."
(let ((expansion ())
(strip-prompt (and (get-buffer-process (current-buffer))
+ comint-use-prompt-regexp-instead-of-fields
comint-prompt-regexp)))
(if (not old)
(progn
(if (not (equal he-search-string ""))
(save-excursion
- ;; Try looking backward unless inhibited.
- (if he-search-bw
- (progn
- (goto-char he-search-loc)
- (setq expansion (he-line-search he-search-string
- strip-prompt t))
- (set-marker he-search-loc (point))
- (if (not expansion)
- (progn
- (set-marker he-search-loc he-string-end)
- (setq he-search-bw ())))))
-
- (if (not expansion) ; Then look forward.
- (progn
- (goto-char he-search-loc)
- (setq expansion (he-line-search he-search-string
- strip-prompt nil))
- (set-marker he-search-loc (point))))))
+ (save-restriction
+ (if hippie-expand-no-restriction
+ (widen))
+ ;; Try looking backward unless inhibited.
+ (if he-search-bw
+ (progn
+ (goto-char he-search-loc)
+ (setq expansion (he-line-search he-search-string
+ strip-prompt t))
+ (set-marker he-search-loc (point))
+ (if (not expansion)
+ (progn
+ (set-marker he-search-loc he-string-end)
+ (setq he-search-bw ())))))
+
+ (if (not expansion) ; Then look forward.
+ (progn
+ (goto-char he-search-loc)
+ (setq expansion (he-line-search he-search-string
+ strip-prompt nil))
+ (set-marker he-search-loc (point)))))))
(if (not expansion)
(progn
string). It returns t if a new completion is found, nil otherwise."
(let ((expansion ())
(strip-prompt (and (get-buffer-process (current-buffer))
+ comint-use-prompt-regexp-instead-of-fields
comint-prompt-regexp))
(buf (current-buffer))
(orig-case-fold-search case-fold-search))
(< he-searched-n-bufs hippie-expand-max-buffers)))
(set-buffer (car he-search-bufs))
(if (and (not (eq (current-buffer) buf))
- (not (memq major-mode hippie-expand-ignore-buffers))
- (not (he-regexp-member (buffer-name)
- hippie-expand-ignore-buffers)))
+ (if hippie-expand-only-buffers
+ (he-buffer-member hippie-expand-only-buffers)
+ (not (he-buffer-member hippie-expand-ignore-buffers))))
(save-excursion
- (goto-char he-search-loc)
- (setq strip-prompt (and (get-buffer-process (current-buffer))
- comint-prompt-regexp))
- (setq expansion (let ((case-fold-search orig-case-fold-search))
- (he-line-search he-search-string
- strip-prompt nil)))
- (set-marker he-search-loc (point))
- (if (not expansion)
- (progn
- (setq he-search-bufs (cdr he-search-bufs))
- (setq he-searched-n-bufs (1+ he-searched-n-bufs))
- (set-marker he-search-loc 1 (car he-search-bufs)))))
+ (save-restriction
+ (if hippie-expand-no-restriction
+ (widen))
+ (goto-char he-search-loc)
+ (setq strip-prompt (and (get-buffer-process (current-buffer))
+ comint-use-prompt-regexp-instead-of-fields
+ comint-prompt-regexp))
+ (setq expansion
+ (let ((case-fold-search orig-case-fold-search))
+ (he-line-search he-search-string
+ strip-prompt nil)))
+ (set-marker he-search-loc (point))
+ (if (not expansion)
+ (progn
+ (setq he-search-bufs (cdr he-search-bufs))
+ (setq he-searched-n-bufs (1+ he-searched-n-bufs))
+ (set-marker he-search-loc 1 (car he-search-bufs))))))
(setq he-search-bufs (cdr he-search-bufs))
(set-marker he-search-loc 1 (car he-search-bufs)))))
(re-search-forward
(he-line-search-regexp str strip-prompt)
nil t)))
- (setq result (buffer-substring (match-beginning 2) (match-end 2)))
+ (setq result (buffer-substring-no-properties (match-end 1)
+ (match-end 0)))
(if (he-string-member result he-tried-table t)
(setq result nil))) ; if already in table, ignore
result))
(if (not (equal he-search-string ""))
(save-excursion
- ;; Try looking backward unless inhibited.
- (if he-search-bw
- (progn
- (goto-char he-search-loc)
- (setq expansion (he-list-search he-search-string t))
- (set-marker he-search-loc (point))
- (if (not expansion)
- (progn
- (set-marker he-search-loc he-string-end)
- (setq he-search-bw ())))))
-
- (if (not expansion) ; Then look forward.
- (progn
- (goto-char he-search-loc)
- (setq expansion (he-list-search he-search-string nil))
- (set-marker he-search-loc (point))))))
+ (save-restriction
+ (if hippie-expand-no-restriction
+ (widen))
+ ;; Try looking backward unless inhibited.
+ (if he-search-bw
+ (progn
+ (goto-char he-search-loc)
+ (setq expansion (he-list-search he-search-string t))
+ (set-marker he-search-loc (point))
+ (if (not expansion)
+ (progn
+ (set-marker he-search-loc he-string-end)
+ (setq he-search-bw ())))))
+
+ (if (not expansion) ; Then look forward.
+ (progn
+ (goto-char he-search-loc)
+ (setq expansion (he-list-search he-search-string nil))
+ (set-marker he-search-loc (point)))))))
(if (not expansion)
(progn
(< he-searched-n-bufs hippie-expand-max-buffers)))
(set-buffer (car he-search-bufs))
(if (and (not (eq (current-buffer) buf))
- (not (memq major-mode hippie-expand-ignore-buffers))
- (not (he-regexp-member (buffer-name)
- hippie-expand-ignore-buffers)))
+ (if hippie-expand-only-buffers
+ (he-buffer-member hippie-expand-only-buffers)
+ (not (he-buffer-member hippie-expand-ignore-buffers))))
(save-excursion
- (goto-char he-search-loc)
- (setq expansion (let ((case-fold-search orig-case-fold-search))
- (he-list-search he-search-string nil)))
- (set-marker he-search-loc (point))
- (if (not expansion)
- (progn
- (setq he-search-bufs (cdr he-search-bufs))
- (setq he-searched-n-bufs (1+ he-searched-n-bufs))
- (set-marker he-search-loc 1 (car he-search-bufs)))))
+ (save-restriction
+ (if hippie-expand-no-restriction
+ (widen))
+ (goto-char he-search-loc)
+ (setq expansion
+ (let ((case-fold-search orig-case-fold-search))
+ (he-list-search he-search-string nil)))
+ (set-marker he-search-loc (point))
+ (if (not expansion)
+ (progn
+ (setq he-search-bufs (cdr he-search-bufs))
+ (setq he-searched-n-bufs (1+ he-searched-n-bufs))
+ (set-marker he-search-loc 1 (car he-search-bufs))))))
(setq he-search-bufs (cdr he-search-bufs))
(set-marker he-search-loc 1 (car he-search-bufs)))))
(setq err t))
(if (not err)
(progn
- (setq result (buffer-substring beg (point)))
+ (setq result (buffer-substring-no-properties beg (point)))
(if (he-string-member result he-tried-table t)
(setq result nil)))) ; if already in table, ignore
(goto-char pos))
(if (not (equal he-search-string ""))
(save-excursion
- ;; Try looking backward unless inhibited.
- (if he-search-bw
- (progn
- (goto-char he-search-loc)
- (setq expansion (he-dabbrev-search he-search-string t))
- (set-marker he-search-loc (point))
- (if (not expansion)
- (progn
- (set-marker he-search-loc he-string-end)
- (setq he-search-bw ())))))
-
- (if (not expansion) ; Then look forward.
- (progn
- (goto-char he-search-loc)
- (setq expansion (he-dabbrev-search he-search-string nil))
- (set-marker he-search-loc (point))))))
+ (save-restriction
+ (if hippie-expand-no-restriction
+ (widen))
+ ;; Try looking backward unless inhibited.
+ (if he-search-bw
+ (progn
+ (goto-char he-search-loc)
+ (setq expansion (he-dabbrev-search he-search-string t))
+ (set-marker he-search-loc (point))
+ (if (not expansion)
+ (progn
+ (set-marker he-search-loc he-string-end)
+ (setq he-search-bw ())))))
+
+ (if (not expansion) ; Then look forward.
+ (progn
+ (goto-char he-search-loc)
+ (setq expansion (he-dabbrev-search he-search-string nil))
+ (set-marker he-search-loc (point)))))))
(if (not expansion)
(progn
(< he-searched-n-bufs hippie-expand-max-buffers)))
(set-buffer (car he-search-bufs))
(if (and (not (eq (current-buffer) buf))
- (not (memq major-mode hippie-expand-ignore-buffers))
- (not (he-regexp-member (buffer-name)
- hippie-expand-ignore-buffers)))
+ (if hippie-expand-only-buffers
+ (he-buffer-member hippie-expand-only-buffers)
+ (not (he-buffer-member hippie-expand-ignore-buffers))))
(save-excursion
- (goto-char he-search-loc)
- (setq expansion (let ((case-fold-search orig-case-fold-search))
- (he-dabbrev-search he-search-string nil)))
- (set-marker he-search-loc (point))
- (if (not expansion)
- (progn
- (setq he-search-bufs (cdr he-search-bufs))
- (setq he-searched-n-bufs (1+ he-searched-n-bufs))
- (set-marker he-search-loc 1 (car he-search-bufs)))))
+ (save-restriction
+ (if hippie-expand-no-restriction
+ (widen))
+ (goto-char he-search-loc)
+ (setq expansion
+ (let ((case-fold-search orig-case-fold-search))
+ (he-dabbrev-search he-search-string nil)))
+ (set-marker he-search-loc (point))
+ (if (not expansion)
+ (progn
+ (setq he-search-bufs (cdr he-search-bufs))
+ (setq he-searched-n-bufs (1+ he-searched-n-bufs))
+ (set-marker he-search-loc 1 (car he-search-bufs))))))
(setq he-search-bufs (cdr he-search-bufs))
(set-marker he-search-loc 1 (car he-search-bufs)))))
(defun he-dabbrev-search (pattern &optional reverse limit)
(let ((result ())
- (regpat (if (eq (char-syntax (aref pattern 0)) ?_)
- (concat (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+")
- (concat "\\<" (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+"))))
+ (regpat (cond ((not hippie-expand-dabbrev-as-symbol)
+ (concat "\\<" (regexp-quote pattern) "\\sw+"))
+ ((eq (char-syntax (aref pattern 0)) ?_)
+ (concat (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+"))
+ (t
+ (concat "\\<" (regexp-quote pattern)
+ "\\(\\sw\\|\\s_\\)+")))))
(while (and (not result)
(if reverse
(re-search-backward regpat limit t)
(re-search-forward regpat limit t)))
- (setq result (buffer-substring (match-beginning 0) (match-end 0)))
- (if (or (and (> (match-beginning 0) (point-min))
+ (setq result (buffer-substring-no-properties (match-beginning 0)
+ (match-end 0)))
+ (if (or (and hippie-expand-dabbrev-as-symbol
+ (> (match-beginning 0) (point-min))
(memq (char-syntax (char-after (1- (match-beginning 0))))
'(?_ ?w)))
(he-string-member result he-tried-table t))
(setq result nil))) ; ignore if bad prefix or already in table
result))
-(defvar he-dabbrev-skip-space ()
- "Non-NIL means tolerate trailing spaces in the abbreviation to expand.")
-
(defun he-dabbrev-beg ()
(let ((op (point)))
(save-excursion
- (if he-dabbrev-skip-space
+ (if hippie-expand-dabbrev-skip-space
(skip-syntax-backward ". "))
- (if (= (skip-syntax-backward "w_") 0)
+ (if (= (skip-syntax-backward (if hippie-expand-dabbrev-as-symbol
+ "w_" "w"))
+ 0)
op
(point)))))
(defun he-dabbrev-kill-search (pattern)
(let ((result ())
- (regpat (if (eq (char-syntax (aref pattern 0)) ?_)
- (concat (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+")
- (concat "\\<" (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+")))
+ (regpat (cond ((not hippie-expand-dabbrev-as-symbol)
+ (concat "\\<" (regexp-quote pattern) "\\sw+"))
+ ((eq (char-syntax (aref pattern 0)) ?_)
+ (concat (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+"))
+ (t
+ (concat "\\<" (regexp-quote pattern)
+ "\\(\\sw\\|\\s_\\)+"))))
(killstr (car he-expand-list)))
(while (and (not result)
he-expand-list)
(while (and (not result)
(string-match regpat killstr he-search-loc2))
(setq result (substring killstr (match-beginning 0) (match-end 0)))
+ (set-text-properties 0 (length result) () result)
(setq he-search-loc2 (1+ (match-beginning 0)))
- (if (or (and (> (match-beginning 0) 0)
+ (if (or (and hippie-expand-dabbrev-as-symbol
+ (> (match-beginning 0) 0)
(memq (char-syntax (aref killstr (1- (match-beginning 0))))
'(?_ ?w)))
(he-string-member result he-tried-table t))
(eq (char-after (- (point) pos)) (aref killstr 0))
(search-backward (substring killstr 0 pos)
(- (point) pos) t))
- (setq result (substring killstr pos))))
+ (progn
+ (setq result (substring killstr pos))
+ (set-text-properties 0 (length result) () result))))
(if (and result
(he-string-member result he-tried-table))
(setq result nil))) ; ignore if already in table
HCoop / bpt / emacs.git / blobdiff