116 lines
4.2 KiB
EmacsLisp
116 lines
4.2 KiB
EmacsLisp
;;; helm-man.el --- Man and woman UI -*- 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)
|
|
|
|
(defvar woman-topic-all-completions)
|
|
(defvar woman-manpath)
|
|
(defvar woman-path)
|
|
(defvar woman-expanded-directory-path)
|
|
(declare-function woman-file-name "woman.el" (topic &optional re-cache))
|
|
(declare-function woman-file-name-all-completions "woman.el" (topic))
|
|
(declare-function Man-getpage-in-background "man.el" (topic))
|
|
(declare-function woman-expand-directory-path "woman.el" (path-dirs path-regexps))
|
|
(declare-function woman-topic-all-completions "woman.el" (path))
|
|
(declare-function helm-generic-sort-fn "helm-utils.el" (S1 S2))
|
|
|
|
(defgroup helm-man nil
|
|
"Man and Woman applications for helm."
|
|
:group 'helm)
|
|
|
|
(defcustom helm-man-or-woman-function 'Man-getpage-in-background
|
|
"Default command to display a man page."
|
|
:group 'helm-man
|
|
:type '(radio :tag "Preferred command to display a man page"
|
|
(const :tag "Man" Man-getpage-in-background)
|
|
(const :tag "Woman" woman)))
|
|
|
|
(defcustom helm-man-format-switches "-l %s"
|
|
"Arguments to pass to the `manual-entry' function.
|
|
Arguments are passed to `manual-entry' with `format.'
|
|
Default use \"-l\" which may not be supported on old man versions,
|
|
in this case use \"%s\" as value to pass only the filename as argument.
|
|
See Issue #1035"
|
|
:group 'helm-man
|
|
:type 'string)
|
|
|
|
;; Internal
|
|
(defvar helm-man--pages nil
|
|
"All man pages on system.
|
|
Will be calculated the first time you invoke helm with this
|
|
source.")
|
|
|
|
(defun helm-man-default-action (candidate)
|
|
"Default action for jumping to a woman or man page from helm."
|
|
(let ((wfiles (mapcar
|
|
'car (woman-file-name-all-completions candidate))))
|
|
(condition-case nil
|
|
(if (> (length wfiles) 1)
|
|
(let ((file (helm-comp-read
|
|
"ManFile: " wfiles :must-match t)))
|
|
(if (eq helm-man-or-woman-function 'Man-getpage-in-background)
|
|
(manual-entry (format helm-man-format-switches file))
|
|
(woman-find-file file)))
|
|
(funcall helm-man-or-woman-function candidate))
|
|
;; If woman is unable to format correctly
|
|
;; use man instead.
|
|
(error (kill-buffer) ; Kill woman buffer.
|
|
(Man-getpage-in-background candidate)))))
|
|
|
|
(defun helm-man--init ()
|
|
(require 'woman)
|
|
(require 'helm-utils)
|
|
(unless helm-man--pages
|
|
(setq woman-expanded-directory-path
|
|
(woman-expand-directory-path woman-manpath woman-path))
|
|
(setq woman-topic-all-completions
|
|
(woman-topic-all-completions woman-expanded-directory-path))
|
|
(setq helm-man--pages (mapcar 'car woman-topic-all-completions)))
|
|
(helm-init-candidates-in-buffer 'global helm-man--pages))
|
|
|
|
(defvar helm-source-man-pages
|
|
(helm-build-in-buffer-source "Manual Pages"
|
|
:init #'helm-man--init
|
|
:persistent-action #'ignore
|
|
:filtered-candidate-transformer
|
|
(lambda (candidates _source)
|
|
(sort candidates #'helm-generic-sort-fn))
|
|
:action '(("Display Man page" . helm-man-default-action))))
|
|
|
|
;;;###autoload
|
|
(defun helm-man-woman (arg)
|
|
"Preconfigured `helm' for Man and Woman pages.
|
|
With a prefix arg reinitialize the cache."
|
|
(interactive "P")
|
|
(when arg (setq helm-man--pages nil))
|
|
(helm :sources 'helm-source-man-pages
|
|
:buffer "*Helm man woman*"))
|
|
|
|
(provide 'helm-man)
|
|
|
|
;; Local Variables:
|
|
;; byte-compile-warnings: (not cl-functions obsolete)
|
|
;; coding: utf-8
|
|
;; indent-tabs-mode: nil
|
|
;; End:
|
|
|
|
;;; helm-man.el ends here
|