;;; helm-regexp.el --- In buffer regexp searching and replacement for helm. -*- lexical-binding: t -*-
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;; Copyright (C) 2012 ~ 2018 Thierry Volpiatto <thierry.volpiatto@gmail.com>
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Code:
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(require 'cl-lib)
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(require 'helm)
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(require 'helm-help)
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(require 'helm-utils)
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(declare-function helm-mm-split-pattern "helm-multi-match")
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(defgroup helm-regexp nil
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"Regexp related Applications and libraries for Helm."
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:group 'helm)
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(defcustom helm-moccur-always-search-in-current nil
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"Helm multi occur always search in current buffer when non--nil."
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:group 'helm-regexp
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:type 'boolean)
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(defcustom helm-moccur-use-ioccur-style-keys t
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"Similar to `helm-grep-use-ioccur-style-keys' but for multi occur."
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:group 'helm-regexp
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:type 'boolean)
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(defcustom helm-moccur-auto-update-on-resume nil
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"Allow auto updating helm-(m)occur buffer when outdated.
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noask => Always update without asking
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nil => Don't update but signal buffer needs update
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never => Never update and do not signal buffer needs update
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Any other non--nil value update after confirmation."
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:group 'helm-regexp
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:type '(radio :tag "Allow auto updating helm-(m)occur buffer when outdated."
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(const :tag "Always update without asking" noask)
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(const :tag "Never update and do not signal buffer needs update" never)
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(const :tag "Don't update but signal buffer needs update" nil)
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(const :tag "Update after confirmation" t)))
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(defcustom helm-source-multi-occur-actions
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'(("Go to Line" . helm-moccur-goto-line)
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("Goto line other window (C-u vertically)" . helm-moccur-goto-line-ow)
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("Goto line new frame" . helm-moccur-goto-line-of)
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("Save buffer" . helm-moccur-save-results))
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"Actions for helm-occur and helm-moccur."
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:group 'helm-regexp
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:type '(alist :key-type string :value-type function))
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(defcustom helm-moccur-truncate-lines t
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"When nil the (m)occur line that appears will not be truncated."
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:group 'helm-regexp
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:type 'boolean)
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(defcustom helm-moccur-show-buffer-fontification nil
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"Show fontification of searched buffer in results when non nil.
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This enable or disable fontification globally in results, but you can
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override this default setting with `helm-moccur-buffer-substring-fn-for-modes'."
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:group 'helm-regexp
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:type '(radio :tag "Allow preserving fontification of searched buffer in results"
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(const :tag "Don't preserve buffer fontification" nil)
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(const :tag "Preserve buffer fontification" t)))
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(defcustom helm-moccur-buffer-substring-fn-for-modes
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'((mu4e-headers-mode . buffer-substring)
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(package-menu-mode . buffer-substring-no-properties))
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"Alist that allow configuring the function to use for storing a buffer.
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Can be one of `buffer-substring' or `buffer-substring-no-properties'.
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Allow overriding the global effect of `helm-moccur-show-buffer-fontification'
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for a specific mode."
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:group 'helm-regexp
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:type '(alist :key-type (symbol :tag "Mode")
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:value-type (radio (const :tag "With text properties" buffer-substring)
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(const :tag "Without text properties" buffer-substring-no-properties))))
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(defcustom helm-occur-show-buffer-name nil
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"Show buffer name in `helm-occur' results when non-nil.
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Not that this doesn't affect `helm-moccur' results and
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`helm-moccur-mode' buffers where buffer names are always shown."
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:group 'helm-regexp
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:type 'boolean)
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(defface helm-moccur-buffer
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'((t (:foreground "DarkTurquoise" :underline t)))
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"Face used to highlight moccur buffer names."
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:group 'helm-regexp)
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(defface helm-resume-need-update
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'((t (:background "red")))
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"Face used to flash moccur buffer when it needs update."
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:group 'helm-regexp)
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(defvar helm-moccur-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map helm-map)
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(define-key map (kbd "M-<down>") 'helm-goto-next-file)
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(define-key map (kbd "M-<up>") 'helm-goto-precedent-file)
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(define-key map (kbd "C-c o") 'helm-moccur-run-goto-line-ow)
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(define-key map (kbd "C-c C-o") 'helm-moccur-run-goto-line-of)
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(define-key map (kbd "C-x C-s") 'helm-moccur-run-save-buffer)
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(when helm-moccur-use-ioccur-style-keys
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(define-key map (kbd "<right>") 'helm-execute-persistent-action)
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(define-key map (kbd "<left>") 'helm-moccur-run-default-action))
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(delq nil map))
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"Keymap used in Moccur source.")
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;; History vars
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(defvar helm-build-regexp-history nil)
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(defvar helm-occur-history nil)
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(defun helm-query-replace-regexp (_candidate)
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"Query replace regexp from `helm-regexp'.
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With a prefix arg replace only matches surrounded by word boundaries,
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i.e Don't replace inside a word, regexp is surrounded with \\bregexp\\b."
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(let ((regexp helm-input))
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(apply 'query-replace-regexp
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(helm-query-replace-args regexp))))
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(defun helm-kill-regexp-as-sexp (_candidate)
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"Kill regexp in a format usable in lisp code."
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(helm-regexp-kill-new
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(prin1-to-string helm-input)))
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(defun helm-kill-regexp (_candidate)
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"Kill regexp as it is in `helm-pattern'."
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(helm-regexp-kill-new helm-input))
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(defun helm-query-replace-args (regexp)
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"create arguments of `query-replace-regexp' action in `helm-regexp'."
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(let ((region-only (helm-region-active-p)))
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(list
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regexp
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(query-replace-read-to regexp
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(format "Query replace %sregexp %s"
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(if helm-current-prefix-arg "word " "")
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(if region-only "in region " ""))
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t)
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helm-current-prefix-arg
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(when region-only (region-beginning))
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(when region-only (region-end)))))
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(defvar helm-source-regexp
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(helm-build-in-buffer-source "Regexp Builder"
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:init (lambda ()
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(helm-init-candidates-in-buffer
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'global (with-temp-buffer
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(insert-buffer-substring helm-current-buffer)
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(buffer-string))))
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:get-line #'helm-regexp-get-line
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:persistent-action #'helm-regexp-persistent-action
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:persistent-help "Show this line"
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:multiline t
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:multimatch nil
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:requires-pattern 2
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:group 'helm-regexp
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:mode-line "Press TAB to select action."
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:action '(("Kill Regexp as sexp" . helm-kill-regexp-as-sexp)
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("Query Replace Regexp (C-u Not inside word.)"
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. helm-query-replace-regexp)
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("Kill Regexp" . helm-kill-regexp))))
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(defun helm-regexp-get-line (s e)
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(let ((matches (match-data))
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(line (buffer-substring s e)))
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(propertize
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(cl-loop with ln = (format "%5d: %s" (1- (line-number-at-pos s)) line)
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for i from 0 to (1- (/ (length matches) 2))
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if (match-string i)
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concat (format "\n%s%s'%s'"
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(make-string 10 ? ) (format "Group %d: " i) it)
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into ln1
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finally return (concat ln ln1))
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'helm-realvalue s)))
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(defun helm-regexp-persistent-action (pt)
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(helm-goto-char pt)
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(helm-highlight-current-line))
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(defun helm-regexp-kill-new (input)
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(kill-new (substring-no-properties input))
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(message "Killed: %s" input))
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;;; Occur
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;;
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;;
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(defvar helm-source-occur nil)
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(defun helm-occur-init-source ()
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(unless helm-source-occur
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(setq helm-source-occur
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(helm-make-source "Occur" 'helm-source-multi-occur))))
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;;; Multi occur
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;;
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;;
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;; Internal
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(defvar helm-multi-occur-buffer-list nil)
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(defvar helm-multi-occur-buffer-tick nil)
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(defvar helm-occur--invisible nil
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"[INTERNAL] Hide buffer name in results when non-nil.
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Should be a local var to helm-buffer to allow resuming.")
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(defun helm-moccur-init ()
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"Create the initial helm multi occur buffer."
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(helm-init-candidates-in-buffer
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'global
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(cl-loop with buffers = (helm-attr 'moccur-buffers)
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with bsubstring = (if helm-moccur-show-buffer-fontification
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#'buffer-substring #'buffer-substring-no-properties)
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for buf in buffers
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for bufstr = (with-current-buffer buf
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(helm-aif (assq major-mode
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helm-moccur-buffer-substring-fn-for-modes)
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(setq bsubstring (cdr it)))
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;; A leading space is needed to allow helm
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;; searching the first line of buffer
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;; (#1725).
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(concat (if (memql (char-after (point-min))
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'(? ?\t ?\n))
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"" " ")
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(funcall bsubstring (point-min) (point-max))))
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do (add-text-properties
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0 (length bufstr)
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`(buffer-name ,(buffer-name (get-buffer buf)))
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bufstr)
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concat bufstr)))
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(defun helm-moccur--next-or-previous-char ()
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(save-excursion
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(or (re-search-forward "^." nil t)
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(re-search-backward "^." nil t))))
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(defun helm-moccur-get-line (beg end)
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"Format line for `helm-source-moccur'."
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(prog1
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(format "%s:%d:%s"
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(get-text-property (if (= beg end)
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(helm-moccur--next-or-previous-char)
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beg)
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'buffer-name)
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(save-restriction
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(narrow-to-region (or (previous-single-property-change
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(point) 'buffer-name)
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(point-at-bol 2))
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(or (next-single-property-change
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(if (= beg end)
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(helm-moccur--next-or-previous-char)
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(point))
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'buffer-name)
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(point-max)))
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(line-number-at-pos beg))
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;; When matching empty line, use empty string
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;; to allow saving and modifying with wgrep.
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(if (= beg end) "" (buffer-substring beg end)))
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;; When matching empty line, forward char ("\n")
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;; to not be blocked forever here.
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(when (= beg end) (forward-char 1))))
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(cl-defun helm-moccur-action (candidate
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&optional (method (quote buffer)))
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"Jump to CANDIDATE with METHOD.
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arg METHOD can be one of buffer, buffer-other-window, buffer-other-frame."
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(require 'helm-grep)
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(let* ((split (helm-grep-split-line candidate))
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(buf (car split))
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(lineno (string-to-number (nth 1 split)))
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(split-pat (helm-mm-split-pattern helm-input)))
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(cl-case method
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(buffer (switch-to-buffer buf))
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(buffer-other-window (helm-window-show-buffers (list buf) t))
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(buffer-other-frame (switch-to-buffer-other-frame buf)))
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(with-current-buffer buf
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(helm-goto-line lineno)
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;; Move point to the nearest matching regexp from bol.
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(cl-loop for reg in split-pat
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when (save-excursion
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(condition-case _err
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(if helm-migemo-mode
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(helm-mm-migemo-forward reg (point-at-eol) t)
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(re-search-forward reg (point-at-eol) t))
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(invalid-regexp nil)))
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collect (match-beginning 0) into pos-ls
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finally (when pos-ls (goto-char (apply #'min pos-ls)))))))
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(defun helm-moccur-persistent-action (candidate)
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(helm-moccur-goto-line candidate)
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(helm-highlight-current-line))
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(defun helm-moccur-goto-line (candidate)
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"From multi occur, switch to buffer and go to nth 1 CANDIDATE line."
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(helm-moccur-action
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candidate 'buffer))
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(defun helm-moccur-goto-line-ow (candidate)
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"Go to CANDIDATE line in other window.
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Same as `helm-moccur-goto-line' but go in other window."
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(helm-moccur-action
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candidate 'buffer-other-window))
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(defun helm-moccur-goto-line-of (candidate)
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"Go to CANDIDATE line in new frame.
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Same as `helm-moccur-goto-line' but go in new frame."
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(helm-moccur-action
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candidate 'buffer-other-frame))
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(defun helm-moccur-run-goto-line-ow ()
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"Run goto line other window action from `helm-source-moccur'."
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(interactive)
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(with-helm-alive-p
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(helm-exit-and-execute-action 'helm-moccur-goto-line-ow)))
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(put 'helm-moccur-run-goto-line-ow 'helm-only t)
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(defun helm-moccur-run-goto-line-of ()
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"Run goto line new frame action from `helm-source-moccur'."
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(interactive)
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(with-helm-alive-p
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(helm-exit-and-execute-action 'helm-moccur-goto-line-of)))
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(put 'helm-moccur-run-goto-line-of 'helm-only t)
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(defun helm-moccur-run-default-action ()
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(interactive)
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(with-helm-alive-p
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(helm-exit-and-execute-action 'helm-moccur-goto-line)))
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(put 'helm-moccur-run-default-action 'helm-only t)
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(defvar helm-moccur-before-init-hook nil
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"Hook that runs before initialization of the helm buffer.")
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(defvar helm-moccur-after-init-hook nil
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"Hook that runs after initialization of the helm buffer.")
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(defvar helm-source-moccur nil)
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(defclass helm-source-multi-occur (helm-source-in-buffer)
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((init :initform (lambda ()
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(require 'helm-grep)
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(helm-moccur-init)))
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(filter-one-by-one :initform 'helm-moccur-filter-one-by-one)
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(get-line :initform helm-moccur-get-line)
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(nohighlight :initform t)
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(nomark :initform t)
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(migemo :initform t)
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(action :initform 'helm-source-multi-occur-actions)
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(persistent-action :initform 'helm-moccur-persistent-action)
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(persistent-help :initform "Go to line")
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(resume :initform 'helm-moccur-resume-fn)
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(candidate-number-limit :initform 9999)
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(help-message :initform 'helm-moccur-help-message)
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(keymap :initform helm-moccur-map)
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(history :initform 'helm-occur-history)
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(requires-pattern :initform 2)
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(before-init-hook :initform 'helm-moccur-before-init-hook)
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(after-init-hook :initform 'helm-moccur-after-init-hook)
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(group :initform 'helm-regexp)))
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(defun helm-moccur-resume-fn ()
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(with-helm-buffer
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(let (new-tick-ls buffer-is-modified)
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(set (make-local-variable 'helm-multi-occur-buffer-list)
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(cl-loop for b in helm-multi-occur-buffer-list
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when (buffer-live-p (get-buffer b))
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collect b))
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(setq buffer-is-modified (/= (length helm-multi-occur-buffer-list)
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(length (helm-attr 'moccur-buffers))))
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(helm-attrset 'moccur-buffers helm-multi-occur-buffer-list)
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(setq new-tick-ls (cl-loop for b in helm-multi-occur-buffer-list
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collect (buffer-chars-modified-tick (get-buffer b))))
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(when buffer-is-modified
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(setq helm-multi-occur-buffer-tick new-tick-ls))
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(cl-assert (> (length helm-multi-occur-buffer-list) 0) nil
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"helm-resume error: helm-(m)occur buffer list is empty")
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(unless (eq helm-moccur-auto-update-on-resume 'never)
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(when (or buffer-is-modified
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(cl-loop for b in helm-multi-occur-buffer-list
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for new-tick = (buffer-chars-modified-tick (get-buffer b))
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for tick in helm-multi-occur-buffer-tick
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thereis (/= tick new-tick)))
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(helm-aif helm-moccur-auto-update-on-resume
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(when (or (eq it 'noask)
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(y-or-n-p "Helm (m)occur Buffer outdated, update? "))
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(run-with-idle-timer 0.1 nil (lambda ()
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(with-helm-buffer
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(helm-force-update)
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(message "Helm (m)occur Buffer have been udated")
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(sit-for 1) (message nil))))
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(unless buffer-is-modified (setq helm-multi-occur-buffer-tick new-tick-ls)))
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(run-with-idle-timer 0.1 nil (lambda ()
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(with-helm-buffer
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(let ((ov (make-overlay (save-excursion
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(goto-char (point-min))
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(forward-line 1)
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(point))
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(point-max))))
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(overlay-put ov 'face 'helm-resume-need-update)
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(sit-for 0.3) (delete-overlay ov)
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(message "[Helm occur Buffer outdated (C-c C-u to update)]")))))
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(unless buffer-is-modified
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(with-helm-after-update-hook
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(setq helm-multi-occur-buffer-tick new-tick-ls)
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(message "Helm (m)occur Buffer have been udated")))))))))
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(defun helm-moccur-filter-one-by-one (candidate &optional outside-helm)
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"`filter-one-by-one' function for `helm-source-moccur'."
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(require 'helm-grep)
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(let* ((split (helm-grep-split-line candidate))
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(buf (car split))
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(lineno (nth 1 split))
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(str (nth 2 split)))
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(cons (concat (propertize
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buf
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'invisible (and (null outside-helm)
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(with-helm-buffer
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helm-occur--invisible))
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'face 'helm-moccur-buffer
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'help-echo (buffer-file-name
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(get-buffer buf))
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'buffer-name buf)
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(propertize ":" 'invisible (and (null outside-helm)
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(with-helm-buffer
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helm-occur--invisible)))
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(propertize lineno 'face 'helm-grep-lineno)
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":"
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(helm-grep-highlight-match str t))
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candidate)))
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(defun helm-multi-occur-1 (buffers &optional input)
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"Main function to call `helm-source-moccur' with BUFFERS list."
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(let ((bufs (if helm-moccur-always-search-in-current
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(cons
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;; will become helm-current-buffer later.
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(buffer-name (current-buffer))
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(remove helm-current-buffer buffers))
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buffers)))
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(unless helm-source-moccur
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(setq helm-source-moccur
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(helm-make-source "Moccur" 'helm-source-multi-occur)))
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(helm-attrset 'moccur-buffers bufs helm-source-moccur)
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(helm-set-local-variable 'helm-multi-occur-buffer-list bufs)
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(helm-set-local-variable
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'helm-multi-occur-buffer-tick
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(cl-loop for b in bufs
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collect (buffer-chars-modified-tick (get-buffer b)))))
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(helm :sources 'helm-source-moccur
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:buffer "*helm multi occur*"
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:default (helm-aif (thing-at-point 'symbol) (regexp-quote it))
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:history 'helm-occur-history
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:keymap helm-moccur-map
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:input input
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:truncate-lines helm-moccur-truncate-lines))
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(defun helm-moccur-run-save-buffer ()
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"Run moccur save results action from `helm-moccur'."
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(interactive)
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(with-helm-alive-p
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(helm-exit-and-execute-action 'helm-moccur-save-results)))
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(put 'helm-moccur-run-save-buffer 'helm-only t)
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;;; helm-moccur-mode
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;;
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;;
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(defvar helm-moccur-mode-map
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(let ((map (make-sparse-keymap)))
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(define-key map (kbd "RET") 'helm-moccur-mode-goto-line)
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(define-key map (kbd "C-o") 'helm-moccur-mode-goto-line-ow)
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(define-key map (kbd "<C-down>") 'helm-moccur-mode-goto-line-ow-forward)
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(define-key map (kbd "<C-up>") 'helm-moccur-mode-goto-line-ow-backward)
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(define-key map (kbd "<M-down>") 'helm-gm-next-file)
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(define-key map (kbd "<M-up>") 'helm-gm-precedent-file)
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(define-key map (kbd "M-n") 'helm-moccur-mode-goto-line-ow-forward)
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(define-key map (kbd "M-p") 'helm-moccur-mode-goto-line-ow-backward)
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(define-key map (kbd "M-N") 'helm-gm-next-file)
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(define-key map (kbd "M-P") 'helm-gm-precedent-file)
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map))
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(defun helm-moccur-mode-goto-line ()
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(interactive)
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(helm-aif (get-text-property (point) 'helm-realvalue)
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(progn (helm-moccur-goto-line it) (helm-match-line-cleanup-pulse))))
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(defun helm-moccur-mode-goto-line-ow ()
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(interactive)
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(helm-aif (get-text-property (point) 'helm-realvalue)
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(progn (helm-moccur-goto-line-ow it) (helm-match-line-cleanup-pulse))))
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(defun helm-moccur-mode-goto-line-ow-forward-1 (arg)
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(condition-case nil
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(progn
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(save-selected-window
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(helm-moccur-mode-goto-line-ow)
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(recenter))
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(forward-line arg))
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(error nil)))
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(defun helm-moccur-mode-goto-line-ow-forward ()
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(interactive)
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(helm-moccur-mode-goto-line-ow-forward-1 1))
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(defun helm-moccur-mode-goto-line-ow-backward ()
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(interactive)
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(helm-moccur-mode-goto-line-ow-forward-1 -1))
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(defun helm-moccur-save-results (_candidate)
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"Save helm moccur results in a `helm-moccur-mode' buffer."
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(let ((buf "*hmoccur*")
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new-buf)
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(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)
|
(map (make-sparse-keymap)))
|
(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)))))
|
(save-excursion
|
(while (not (eobp))
|
(add-text-properties
|
(point-at-bol) (point-at-eol)
|
`(keymap ,map
|
help-echo ,(concat
|
(buffer-file-name
|
(get-buffer (get-text-property
|
(point) 'buffer-name)))
|
"\nmouse-1: set point\nmouse-2: jump to selection")
|
mouse-face highlight
|
invisible nil))
|
(define-key map [mouse-1] 'mouse-set-point)
|
(define-key map [mouse-2] 'helm-moccur-mode-mouse-goto-line)
|
(define-key map [mouse-3] 'ignore)
|
(forward-line 1))))
|
(helm-moccur-mode))
|
(pop-to-buffer buf)
|
(message "Helm Moccur Results saved in `%s' buffer" buf)))
|
|
(defun helm-moccur-mode-mouse-goto-line (event)
|
(interactive "e")
|
(let* ((window (posn-window (event-end event)))
|
(pos (posn-point (event-end event))))
|
(with-selected-window window
|
(when (eq major-mode 'helm-moccur-mode)
|
(goto-char pos)
|
(helm-moccur-mode-goto-line)))))
|
(put 'helm-moccur-mode-mouse-goto-line 'helm-only t)
|
|
;;;###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)
|
(bsubstring (if helm-moccur-show-buffer-fontification
|
#'buffer-substring #'buffer-substring-no-properties)))
|
(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
|
(funcall bsubstring
|
(point-min) (point-max))))
|
"")
|
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 t))
|
'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 searching lines matching pattern in `current-buffer'.
|
|
When `helm-source-occur' is member of
|
`helm-sources-using-default-as-input' which is the default,
|
symbol at point is searched at startup.
|
|
When a region is marked search only in this region by narrowing.
|
|
To search in multiples buffers start from one of the commands listing
|
buffers (i.e. a helm command using `helm-source-buffers-list' like
|
`helm-mini') and use the multi occur buffers action.
|
|
This is the helm implementation that collect lines matching pattern
|
like vanilla emacs `occur' but have nothing to do with it, the search
|
engine beeing completely different."
|
(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-set-local-variable 'helm-occur--invisible
|
(null helm-occur-show-buffer-name))
|
(save-restriction
|
(let (def pos)
|
(when (use-region-p)
|
;; When user mark defun with `mark-defun' with intention of
|
;; using helm-occur on this region, it is relevant to use the
|
;; thing-at-point located at previous position which have been
|
;; pushed to `mark-ring'.
|
(setq def (save-excursion
|
(goto-char (setq pos (car mark-ring)))
|
(helm-aif (thing-at-point 'symbol) (regexp-quote it))))
|
(narrow-to-region (region-beginning) (region-end)))
|
(unwind-protect
|
(helm :sources 'helm-source-occur
|
:buffer "*helm occur*"
|
:default (or def (helm-aif (thing-at-point 'symbol) (regexp-quote it)))
|
: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 (or pos (point)))))
|
:truncate-lines helm-moccur-truncate-lines)
|
(deactivate-mark t)))))
|
|
;;;###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-set-local-variable 'helm-occur--invisible
|
(null helm-occur-show-buffer-name))
|
(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 obsolete)
|
;; coding: utf-8
|
;; indent-tabs-mode: nil
|
;; End:
|
|
;;; helm-regexp.el ends here
|
