my-emacs-d/elpa/helm-20160929.1313/helm-regexp.el
Gergely Polonkai 449ebf466d Update packages
2016-10-03 13:57:29 +02:00

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;;; helm-regexp.el --- In buffer regexp searching and replacement for helm. -*- lexical-binding: t -*-
;; Copyright (C) 2012 ~ 2016 Thierry Volpiatto <thierry.volpiatto@gmail.com>
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Code:
(require 'cl-lib)
(require 'helm)
(require 'helm-help)
(require 'helm-utils)
(declare-function helm-mm-split-pattern "helm-multi-match")
(defgroup helm-regexp nil
"Regexp related Applications and libraries for Helm."
:group 'helm)
(defcustom helm-moccur-always-search-in-current nil
"Helm multi occur always search in current buffer when non--nil."
:group 'helm-regexp
:type 'boolean)
(defcustom helm-moccur-use-ioccur-style-keys t
"Similar to `helm-grep-use-ioccur-style-keys' but for multi occur."
:group 'helm-regexp
:type 'boolean)
(defcustom helm-moccur-auto-update-on-resume nil
"Allow auto updating helm-(m)occur buffer when outdated.
noask => Always update without asking
nil => Don't update but signal buffer needs update
never => Never update and do not signal buffer needs update
Any other non--nil value update after confirmation."
:group 'helm-regexp
:type '(radio :tag "Allow auto updating helm-(m)occur buffer when outdated."
(const :tag "Always update without asking" noask)
(const :tag "Never update and do not signal buffer needs update" never)
(const :tag "Don't update but signal buffer needs update" nil)
(const :tag "Update after confirmation" t)))
(defcustom helm-source-multi-occur-actions
'(("Go to Line" . helm-moccur-goto-line)
("Goto line other window" . helm-moccur-goto-line-ow)
("Goto line new frame" . helm-moccur-goto-line-of))
"Actions for helm-occur and helm-moccur."
:group 'helm-regexp
:type '(alist :key-type string :value-type function))
(defcustom helm-moccur-truncate-lines t
"When nil the (m)occur line that appears will not be truncated."
:group 'helm-regexp
:type 'boolean)
(defface helm-moccur-buffer
'((t (:foreground "DarkTurquoise" :underline t)))
"Face used to highlight moccur buffer names."
:group 'helm-regexp)
(defface helm-resume-need-update
'((t (:background "red")))
"Face used to flash moccur buffer when it needs update."
:group 'helm-regexp)
(defvar helm-moccur-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map helm-map)
(define-key map (kbd "M-<down>") 'helm-goto-next-file)
(define-key map (kbd "M-<up>") 'helm-goto-precedent-file)
(define-key map (kbd "C-w") 'helm-yank-text-at-point)
(define-key map (kbd "C-c o") 'helm-moccur-run-goto-line-ow)
(define-key map (kbd "C-c C-o") 'helm-moccur-run-goto-line-of)
(define-key map (kbd "C-x C-s") 'helm-moccur-run-save-buffer)
(when helm-moccur-use-ioccur-style-keys
(define-key map (kbd "<right>") 'helm-execute-persistent-action)
(define-key map (kbd "<left>") 'helm-moccur-run-default-action))
(delq nil map))
"Keymap used in Moccur source.")
;; History vars
(defvar helm-build-regexp-history nil)
(defvar helm-occur-history nil)
(defun helm-query-replace-regexp (_candidate)
"Query replace regexp from `helm-regexp'.
With a prefix arg replace only matches surrounded by word boundaries,
i.e Don't replace inside a word, regexp is surrounded with \\bregexp\\b."
(let ((regexp helm-input))
(apply 'query-replace-regexp
(helm-query-replace-args regexp))))
(defun helm-kill-regexp-as-sexp (_candidate)
"Kill regexp in a format usable in lisp code."
(helm-regexp-kill-new
(prin1-to-string helm-input)))
(defun helm-kill-regexp (_candidate)
"Kill regexp as it is in `helm-pattern'."
(helm-regexp-kill-new helm-input))
(defun helm-query-replace-args (regexp)
"create arguments of `query-replace-regexp' action in `helm-regexp'."
(let ((region-only (helm-region-active-p)))
(list
regexp
(query-replace-read-to regexp
(format "Query replace %sregexp %s"
(if helm-current-prefix-arg "word " "")
(if region-only "in region " ""))
t)
helm-current-prefix-arg
(when region-only (region-beginning))
(when region-only (region-end)))))
(defvar helm-source-regexp
(helm-build-in-buffer-source "Regexp Builder"
:init (lambda ()
(helm-init-candidates-in-buffer
'global (with-temp-buffer
(insert-buffer-substring helm-current-buffer)
(buffer-string))))
:get-line #'helm-regexp-get-line
:persistent-action #'helm-regexp-persistent-action
:persistent-help "Show this line"
:multiline t
:multimatch nil
:requires-pattern 2
:mode-line "Press TAB to select action."
:action '(("Kill Regexp as sexp" . helm-kill-regexp-as-sexp)
("Query Replace Regexp (C-u Not inside word.)"
. helm-query-replace-regexp)
("Kill Regexp" . helm-kill-regexp))))
(defun helm-regexp-get-line (s e)
(let ((matches (match-data))
(line (buffer-substring s e)))
(propertize
(cl-loop with ln = (format "%5d: %s" (1- (line-number-at-pos s)) line)
for i from 0 to (1- (/ (length matches) 2))
concat (format "\n %s'%s'" (format "Group %d: " i)
(match-string i))
into ln1
finally return (concat ln ln1))
'helm-realvalue s)))
(defun helm-regexp-persistent-action (pt)
(helm-goto-char pt)
(helm-highlight-current-line))
(defun helm-regexp-kill-new (input)
(kill-new (substring-no-properties input))
(message "Killed: %s" input))
;;; Occur
;;
;;
(defvar helm-source-occur nil)
(defun helm-occur-init-source ()
(unless helm-source-occur
(setq helm-source-occur
(helm-make-source "Occur" 'helm-source-multi-occur))))
;;; Multi occur
;;
;;
;; Internal
(defvar helm-multi-occur-buffer-list nil)
(defvar helm-multi-occur-buffer-tick nil)
(defun helm-moccur-init ()
"Create the initial helm multi occur buffer."
(helm-init-candidates-in-buffer
'global
(cl-loop with buffers = (helm-attr 'moccur-buffers)
for buf in buffers
for bufstr = (with-current-buffer buf (buffer-string))
do (add-text-properties
0 (length bufstr)
`(buffer-name ,(buffer-name (get-buffer buf)))
bufstr)
concat bufstr)))
(defun helm-moccur--next-or-previous-char ()
(save-excursion
(or (re-search-forward "^." nil t)
(re-search-backward "^." nil t))))
(defun helm-moccur-get-line (beg end)
"Format line for `helm-source-moccur'."
(prog1
(format "%s:%d:%s"
(get-text-property (if (= beg end)
(helm-moccur--next-or-previous-char)
beg)
'buffer-name)
(save-restriction
(narrow-to-region (or (previous-single-property-change
(point) 'buffer-name) 1)
(or (next-single-property-change
(if (= beg end)
(helm-moccur--next-or-previous-char)
(point))
'buffer-name)
(point-max)))
(line-number-at-pos beg))
;; When matching empty line, use empty string
;; to allow saving and modifying with wgrep.
(if (= beg end) "" (buffer-substring beg end)))
;; When matching empty line, forward char ("\n")
;; to not be blocked forever here.
(when (= beg end) (forward-char 1))))
(cl-defun helm-moccur-action (candidate
&optional (method (quote buffer)) mark)
"Jump to CANDIDATE with METHOD.
arg METHOD can be one of buffer, buffer-other-window, buffer-other-frame."
(require 'helm-grep)
(let* ((split (helm-grep-split-line candidate))
(buf (car split))
(lineno (string-to-number (nth 1 split)))
(split-pat (helm-mm-split-pattern helm-input)))
(cl-case method
(buffer (switch-to-buffer buf))
(buffer-other-window (switch-to-buffer-other-window buf))
(buffer-other-frame (switch-to-buffer-other-frame buf)))
(helm-goto-line lineno)
;; Move point to the nearest matching regexp from bol.
(cl-loop for reg in split-pat
when (save-excursion
(condition-case _err
(if helm-migemo-mode
(helm-mm-migemo-forward reg (point-at-eol) t)
(re-search-forward reg (point-at-eol) t))
(invalid-regexp nil)))
collect (match-beginning 0) into pos-ls
finally (when pos-ls (goto-char (apply #'min pos-ls))))
(when mark
(set-marker (mark-marker) (point))
(push-mark (point) 'nomsg))))
(defun helm-moccur-persistent-action (candidate)
(helm-moccur-goto-line candidate)
(helm-highlight-current-line))
(defun helm-moccur-goto-line (candidate)
"From multi occur, switch to buffer and go to nth 1 CANDIDATE line."
(helm-moccur-action
candidate 'buffer (or current-prefix-arg ; persistent.
helm-current-prefix-arg))) ; exit.
(defun helm-moccur-goto-line-ow (candidate)
"Go to CANDIDATE line in other window.
Same as `helm-moccur-goto-line' but go in other window."
(helm-moccur-action
candidate 'buffer-other-window
(or current-prefix-arg ; persistent.
helm-current-prefix-arg))) ; exit.
(defun helm-moccur-goto-line-of (candidate)
"Go to CANDIDATE line in new frame.
Same as `helm-moccur-goto-line' but go in new frame."
(helm-moccur-action
candidate 'buffer-other-frame
(or current-prefix-arg ; persistent.
helm-current-prefix-arg))) ; exit.
(defun helm-moccur-run-goto-line-ow ()
"Run goto line other window action from `helm-source-moccur'."
(interactive)
(with-helm-alive-p
(helm-exit-and-execute-action 'helm-moccur-goto-line-ow)))
(put 'helm-moccur-run-goto-line-ow 'helm-only t)
(defun helm-moccur-run-goto-line-of ()
"Run goto line new frame action from `helm-source-moccur'."
(interactive)
(with-helm-alive-p
(helm-exit-and-execute-action 'helm-moccur-goto-line-of)))
(put 'helm-moccur-run-goto-line-of 'helm-only t)
(defun helm-moccur-run-default-action ()
(interactive)
(with-helm-alive-p
(helm-exit-and-execute-action 'helm-moccur-goto-line)))
(put 'helm-moccur-run-default-action 'helm-only t)
(defvar helm-source-moccur nil)
(defclass helm-source-multi-occur (helm-source-in-buffer)
((init :initform (lambda ()
(require 'helm-grep)
(helm-moccur-init)))
(filter-one-by-one :initform 'helm-moccur-filter-one-by-one)
(get-line :initform helm-moccur-get-line)
(nohighlight :initform t)
(nomark :initform t)
(migemo :initform t)
(action :initform 'helm-source-multi-occur-actions)
(persistent-action :initform 'helm-moccur-persistent-action)
(persistent-help :initform "Go to line")
(resume :initform 'helm-moccur-resume-fn)
(candidate-number-limit :initform 9999)
(help-message :initform 'helm-moccur-help-message)
(keymap :initform helm-moccur-map)
(history :initform 'helm-occur-history)
(requires-pattern :initform 2)))
(defun helm-moccur-resume-fn ()
(with-helm-buffer
(let (new-tick-ls buffer-is-modified)
(set (make-local-variable 'helm-multi-occur-buffer-list)
(cl-loop for b in helm-multi-occur-buffer-list
when (buffer-live-p (get-buffer b))
collect b))
(setq buffer-is-modified (/= (length helm-multi-occur-buffer-list)
(length (helm-attr 'moccur-buffers))))
(helm-attrset 'moccur-buffers helm-multi-occur-buffer-list)
(setq new-tick-ls (cl-loop for b in helm-multi-occur-buffer-list
collect (buffer-chars-modified-tick (get-buffer b))))
(when buffer-is-modified
(setq helm-multi-occur-buffer-tick new-tick-ls))
(cl-assert (> (length helm-multi-occur-buffer-list) 0) nil
"helm-resume error: helm-(m)occur buffer list is empty")
(unless (eq helm-moccur-auto-update-on-resume 'never)
(when (or buffer-is-modified
(cl-loop for b in helm-multi-occur-buffer-list
for new-tick = (buffer-chars-modified-tick (get-buffer b))
for tick in helm-multi-occur-buffer-tick
thereis (/= tick new-tick)))
(helm-aif helm-moccur-auto-update-on-resume
(when (or (eq it 'noask)
(y-or-n-p "Helm (m)occur Buffer outdated, update? "))
(run-with-idle-timer 0.1 nil (lambda ()
(with-helm-buffer
(helm-force-update)
(message "Helm (m)occur Buffer have been udated")
(sit-for 1) (message nil))))
(unless buffer-is-modified (setq helm-multi-occur-buffer-tick new-tick-ls)))
(run-with-idle-timer 0.1 nil (lambda ()
(with-helm-buffer
(let ((ov (make-overlay (save-excursion
(goto-char (point-min))
(forward-line 1)
(point))
(point-max))))
(overlay-put ov 'face 'helm-resume-need-update)
(sit-for 0.3) (delete-overlay ov)
(message "[Helm occur Buffer outdated (C-c C-u to update)]")))))
(unless buffer-is-modified
(with-helm-after-update-hook
(setq helm-multi-occur-buffer-tick new-tick-ls)
(message "Helm (m)occur Buffer have been udated")))))))))
(defun helm-moccur-filter-one-by-one (candidate)
"`filter-one-by-one' function for `helm-source-moccur'."
(require 'helm-grep)
(let* ((split (helm-grep-split-line candidate))
(buf (car split))
(lineno (nth 1 split))
(str (nth 2 split)))
(cons (concat (propertize
buf
'face 'helm-moccur-buffer
'help-echo (buffer-file-name
(get-buffer buf))
'buffer-name buf)
":"
(propertize lineno 'face 'helm-grep-lineno)
":"
(helm-grep-highlight-match str t))
candidate)))
(defun helm-multi-occur-1 (buffers &optional input)
"Main function to call `helm-source-moccur' with BUFFERS list."
(let ((bufs (if helm-moccur-always-search-in-current
(cons
;; will become helm-current-buffer later.
(buffer-name (current-buffer))
(remove helm-current-buffer buffers))
buffers)))
(unless helm-source-moccur
(setq helm-source-moccur
(helm-make-source "Moccur" 'helm-source-multi-occur)))
(helm-attrset 'moccur-buffers bufs helm-source-moccur)
(helm-set-local-variable 'helm-multi-occur-buffer-list bufs)
(helm-set-local-variable
'helm-multi-occur-buffer-tick
(cl-loop for b in bufs
collect (buffer-chars-modified-tick (get-buffer b)))))
(helm :sources 'helm-source-moccur
:buffer "*helm multi occur*"
:history 'helm-occur-history
:keymap helm-moccur-map
:input input
:truncate-lines helm-moccur-truncate-lines))
(defun helm-moccur-run-save-buffer ()
"Run moccur save results action from `helm-moccur'."
(interactive)
(with-helm-alive-p
(helm-exit-and-execute-action 'helm-moccur-save-results)))
(put 'helm-moccur-run-save-buffer 'helm-only t)
;;; helm-moccur-mode
;;
;;
(defvar helm-moccur-mode-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "RET") 'helm-moccur-mode-goto-line)
(define-key map (kbd "C-o") 'helm-moccur-mode-goto-line-ow)
(define-key map (kbd "<C-down>") 'helm-moccur-mode-goto-line-ow-forward)
(define-key map (kbd "<C-up>") 'helm-moccur-mode-goto-line-ow-backward)
(define-key map (kbd "<M-down>") 'helm-gm-next-file)
(define-key map (kbd "<M-up>") 'helm-gm-precedent-file)
(define-key map (kbd "M-n") 'helm-moccur-mode-goto-line-ow-forward)
(define-key map (kbd "M-p") 'helm-moccur-mode-goto-line-ow-backward)
(define-key map (kbd "M-N") 'helm-gm-next-file)
(define-key map (kbd "M-P") 'helm-gm-precedent-file)
map))
(defun helm-moccur-mode-goto-line ()
(interactive)
(helm-aif (get-text-property (point) 'helm-realvalue)
(helm-moccur-goto-line it)))
(defun helm-moccur-mode-goto-line-ow ()
(interactive)
(helm-aif (get-text-property (point) 'helm-realvalue)
(helm-moccur-goto-line-ow it)))
(defun helm-moccur-mode-goto-line-ow-forward-1 (arg)
(condition-case nil
(progn
(save-selected-window
(helm-moccur-mode-goto-line-ow)
(recenter))
(forward-line arg))
(error nil)))
(defun helm-moccur-mode-goto-line-ow-forward ()
(interactive)
(helm-moccur-mode-goto-line-ow-forward-1 1))
(defun helm-moccur-mode-goto-line-ow-backward ()
(interactive)
(helm-moccur-mode-goto-line-ow-forward-1 -1))
(defun helm-moccur-save-results (_candidate)
"Save helm moccur results in a `helm-moccur-mode' buffer."
(let ((buf "*hmoccur*")
new-buf)
(when (get-buffer buf)
(setq new-buf (helm-read-string "OccurBufferName: " buf))
(cl-loop for b in (helm-buffer-list)
when (and (string= new-buf b)
(not (y-or-n-p
(format "Buffer `%s' already exists overwrite? "
new-buf))))
do (setq new-buf (helm-read-string "OccurBufferName: " "*hmoccur ")))
(setq buf new-buf))
(with-current-buffer (get-buffer-create buf)
(setq buffer-read-only t)
(let ((inhibit-read-only t))
(erase-buffer)
(insert "-*- mode: helm-moccur -*-\n\n"
(format "Moccur Results for `%s':\n\n" helm-input))
(save-excursion
(insert (with-current-buffer helm-buffer
(goto-char (point-min)) (forward-line 1)
(buffer-substring (point) (point-max))))))
(helm-moccur-mode))
(pop-to-buffer buf)
(message "Helm Moccur Results saved in `%s' buffer" buf)))
;;;###autoload
(define-derived-mode helm-moccur-mode
special-mode "helm-moccur"
"Major mode to provide actions in helm moccur saved buffer.
Special commands:
\\{helm-moccur-mode-map}"
(set (make-local-variable 'helm-multi-occur-buffer-list)
(with-helm-buffer helm-multi-occur-buffer-list))
(set (make-local-variable 'revert-buffer-function)
#'helm-moccur-mode--revert-buffer-function))
(put 'helm-moccur-mode 'helm-only t)
(defun helm-moccur-mode--revert-buffer-function (&optional _ignore-auto _noconfirm)
(goto-char (point-min))
(let (pattern)
(when (re-search-forward "^Moccur Results for `\\(.*\\)'" nil t)
(setq pattern (match-string 1))
(forward-line 0)
(when (re-search-forward "^$" nil t)
(forward-line 1))
(let ((inhibit-read-only t)
(buffer (current-buffer))
(buflst helm-multi-occur-buffer-list))
(delete-region (point) (point-max))
(message "Reverting buffer...")
(save-excursion
(with-temp-buffer
(insert
"\n"
(cl-loop for buf in buflst
for bufstr = (or (and (buffer-live-p (get-buffer buf))
(with-current-buffer buf
(buffer-string)))
"")
unless (string= bufstr "")
do (add-text-properties
0 (length bufstr)
`(buffer-name ,(buffer-name (get-buffer buf)))
bufstr)
concat bufstr)
"\n")
(goto-char (point-min))
(cl-loop with helm-pattern = pattern
while (helm-mm-search pattern)
for line = (helm-moccur-get-line (point-at-bol) (point-at-eol))
when line
do (with-current-buffer buffer
(insert
(propertize
(car (helm-moccur-filter-one-by-one line))
'helm-realvalue line)
"\n")))))
(message "Reverting buffer done")))))
;;; Predefined commands
;;
;;
;;;###autoload
(defun helm-regexp ()
"Preconfigured helm to build regexps.
`query-replace-regexp' can be run from there against found regexp."
(interactive)
(save-restriction
(when (and (helm-region-active-p)
;; Don't narrow to region if buffer is already narrowed.
(not (helm-current-buffer-narrowed-p (current-buffer))))
(narrow-to-region (region-beginning) (region-end)))
(helm :sources helm-source-regexp
:buffer "*helm regexp*"
:prompt "Regexp: "
:history 'helm-build-regexp-history)))
;;;###autoload
(defun helm-occur ()
"Preconfigured helm for Occur."
(interactive)
(helm-occur-init-source)
(let ((bufs (list (buffer-name (current-buffer)))))
(helm-attrset 'moccur-buffers bufs helm-source-occur)
(helm-set-local-variable 'helm-multi-occur-buffer-list bufs)
(helm-set-local-variable
'helm-multi-occur-buffer-tick
(cl-loop for b in bufs
collect (buffer-chars-modified-tick (get-buffer b)))))
(helm :sources 'helm-source-occur
:buffer "*helm occur*"
:history 'helm-occur-history
:preselect (and (memq 'helm-source-occur helm-sources-using-default-as-input)
(format "%s:%d:" (regexp-quote (buffer-name))
(line-number-at-pos (point))))
:truncate-lines helm-moccur-truncate-lines))
;;;###autoload
(defun helm-occur-from-isearch ()
"Invoke `helm-occur' from isearch."
(interactive)
(let ((input (if isearch-regexp
isearch-string
(regexp-quote isearch-string)))
(bufs (list (buffer-name (current-buffer)))))
(isearch-exit)
(helm-occur-init-source)
(helm-attrset 'moccur-buffers bufs helm-source-occur)
(helm-set-local-variable 'helm-multi-occur-buffer-list bufs)
(helm-set-local-variable
'helm-multi-occur-buffer-tick
(cl-loop for b in bufs
collect (buffer-chars-modified-tick (get-buffer b))))
(helm :sources 'helm-source-occur
:buffer "*helm occur*"
:history 'helm-occur-history
:input input
:truncate-lines helm-moccur-truncate-lines)))
;;;###autoload
(defun helm-multi-occur-from-isearch (&optional _arg)
"Invoke `helm-multi-occur' from isearch.
With a prefix arg, reverse the behavior of
`helm-moccur-always-search-in-current'.
The prefix arg can be set before calling
`helm-multi-occur-from-isearch' or during the buffer selection."
(interactive "p")
(let (buf-list
helm-moccur-always-search-in-current
(input (if isearch-regexp
isearch-string
(regexp-quote isearch-string))))
(isearch-exit)
(setq buf-list (helm-comp-read "Buffers: "
(helm-buffer-list)
:name "Occur in buffer(s)"
:marked-candidates t))
(setq helm-moccur-always-search-in-current
(if (or current-prefix-arg
helm-current-prefix-arg)
(not helm-moccur-always-search-in-current)
helm-moccur-always-search-in-current))
(helm-multi-occur-1 buf-list input)))
(provide 'helm-regexp)
;; Local Variables:
;; byte-compile-warnings: (not cl-functions obsolete)
;; coding: utf-8
;; indent-tabs-mode: nil
;; End:
;;; helm-regexp.el ends here