From: Joe Wreschnig Date: Sun, 18 Jun 2017 18:27:00 +0000 (+0200) Subject: Rewrite field setting with modern Emacs Lisp. X-Git-Tag: v20170807~37 X-Git-Url: https://git.korewanetadesu.com/?p=pelican-mode.git;a=commitdiff_plain;h=3315a18243301484682db5648146579430001772 Rewrite field setting with modern Emacs Lisp. Relicense under GPL3. --- diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Affirmer understands and acknowledges that Creative Commons is not a - party to this document and has no duty or obligation with respect to - this CC0 or use of the Work. diff --git a/README.md b/README.md index 8137411..8b365cb 100644 --- a/README.md +++ b/README.md @@ -1,8 +1,8 @@ pelican-mode is an Emacs minor mode for editing pages and posts in -[Pelican] sites. +[Pelican][] sites. -It's intended to be used alongside [markdown-mode] or [rst-mode]. It -also assumes you've set up Pelican with `pelican-quickstart` or +It's intended to be used alongside [markdown-mode][] or [rst-mode][]. +It also assumes you've set up Pelican with `pelican-quickstart` or something like it. In particular it assumes: * The existence of `pelicanconf.py` and `Makefile` in some ancestor @@ -31,15 +31,16 @@ It also enforces some parts of my preferred Pelican configuration: If the commands which invoke `make` can find the Makefile but can't find `pelican`, your `exec-path` may not be set right. Try out -[exec-path-from-shell]. +[exec-path-from-shell][]. ## License -This code is released into the public domain via the -[CC0 Public Domain Dedication][0]. +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. [Pelican]: http://getpelican.com/ [markdown-mode]: http://jblevins.org/projects/markdown-mode/ [rst-mode]: http://docutils.sourceforge.net/docs/user/emacs.html [exec-path-from-shell]: https://github.com/purcell/exec-path-from-shell - [0]: http://creativecommons.org/publicdomain/zero/1.0/legalcode diff --git a/pelican-mode.el b/pelican-mode.el index f6cc525..f82be8a 100644 --- a/pelican-mode.el +++ b/pelican-mode.el @@ -1,7 +1,24 @@ -;;; pelican-mode.el --- Minor mode for editing pages and posts in Pelican sites +;;; pelican-mode.el --- Minor mode for editing Pelican sites -*- lexical-binding: t -*- ;; -;; Author: Joe Wreschnig -;; This code is released into the public domain. +;; Copyright 2013-2017 Joe Wreschnig +;; +;; Author: Joe Wreschnig +;; Package-Version: 20170618 +;; Package-Requires: ((emacs "25")) +;; Keywords: convenience, editing +;; +;; 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 . ;;; Commentary: ;; @@ -9,62 +26,58 @@ ;; tested it on networked drives and the lookup for pelicanconf.py ;; might slow it down considerably. + ;;; Code: -(defun pelican-timestamp-now () - "Generate a Pelican-compatible timestamp." - (format-time-string "%Y-%m-%d %H:%M")) +(require 'subr-x) + +(defun pelican-timestamp (&optional time) + "Generate a Pelican-compatible timestamp for TIME." + (format-time-string "%Y-%m-%d %H:%M" time)) (defun pelican-is-markdown () "Check if the buffer is likely using Markdown." - (eq major-mode 'markdown-mode)) + (derived-mode-p 'markdown-mode)) (defun pelican-field (name value) - "Helper to format a field NAME and VALUE." - (if value (format "%s: %s\n" name value) "")) - -(defun pelican-markdown-header (title date status category tags slug) - "Generate a Pelican Markdown header. - -All parameters but TITLE may be nil to omit them. DATE may be a -string or 't to use the current date and time." - (let ((title (format "Title: %s\n" title)) - (status (pelican-field "Status" status)) - (category (pelican-field "Category" category)) - (tags (pelican-field "Tags" tags)) - (slug (pelican-field "Slug" slug)) - (date (if date (format "Date: %s\n" - (if (stringp date) date - (pelican-timestamp-now))) - ""))) - (concat title date status tags category slug "\n"))) - -(defun pelican-rst-header (title date status category tags slug) - "Generate a Pelican reStructuredText header. - -All parameters but TITLE may be nil to omit them. DATE may be a -string or 't to use the current date and time." - (let ((title (format "%s\n%s\n\n" title - (make-string (string-width title) ?#))) - (status (pelican-field ":status" status)) - (category (pelican-field ":category" category)) - (tags (pelican-field ":tags" tags)) - (slug (pelican-field ":slug" slug)) - (date (if date (format ":date: %s\n" - (if (stringp date) date - (pelican-timestamp-now))) - ""))) - (concat title date status tags category slug "\n"))) + "Format a line for a field NAME with a VALUE." + (if value + (cond ((derived-mode-p 'markdown-mode) + (format "%s: %s\n" (capitalize name) value)) + ((derived-mode-p 'rst-mode) + (format ":%s: %s\n" (downcase name) value)) + (t (error "Unsupported major mode %S" major-mode))) + "")) + +(defun pelican-title (title) + "Format a TITLE for the current document, according to major mode." + (cond ((derived-mode-p 'markdown-mode) + (pelican-field "title" title)) + ((derived-mode-p 'rst-mode) + (concat title "\n" (make-string (string-width title) ?#) "\n")) + (t (error "Unsupported major mode %S" major-mode)))) + +(defun pelican-header (title date status category tags slug) + "Create a Pelican header." + ;; TODO: Use a property list (-> alist via seq-partition) instead. + (when (eq date t) + (setq date (pelican-timestamp))) + + (concat (pelican-title title) + (pelican-field "date" date) + (pelican-field "status" status) + (pelican-field "tags" tags) + (pelican-field "category" category) + (pelican-field "slug" slug) + "\n")) (defun pelican-insert-draft-post-header (title tags) "Insert a Pelican header for a draft post." (interactive "sPost title: \nsTags: ") - (let ((slug (pelican-default-slug)) - (header (if (pelican-is-markdown) - 'pelican-markdown-header 'pelican-rst-header))) + (let ((slug (pelican-default-slug))) (save-excursion (goto-char 0) - (insert (funcall header title 't "draft" nil tags slug))))) + (insert (pelican-header title 't "draft" nil tags slug))))) (defun pelican-insert-page-header (title hidden) "Insert a Pelican header for a page." @@ -72,12 +85,10 @@ string or 't to use the current date and time." (list (read-string "Page title: ") (y-or-n-p "Hidden? "))) (let ((slug (pelican-default-slug)) - (hidden (if hidden "hidden" nil)) - (header (if (pelican-is-markdown) - 'pelican-markdown-header 'pelican-rst-header))) + (hidden (if hidden "hidden" nil))) (save-excursion (goto-char 0) - (insert (funcall header title nil hidden nil nil slug))))) + (insert (pelican-header title nil hidden nil nil slug))))) (defun pelican-insert-header () "Insert a Pelican header for a page or post." @@ -86,54 +97,47 @@ string or 't to use the current date and time." 'pelican-insert-page-header 'pelican-insert-draft-post-header))) +(defun pelican-set-field (field value) + "Set FIELD to VALUE." + (save-excursion + (goto-char 0) + (if (re-search-forward (concat "^" (pelican-field field ".+*")) nil t) + (replace-match (pelican-field field value)) + (re-search-forward "^$") + (replace-match (pelican-field field value))))) + (defun pelican-update-date () "Update a Pelican date header." (interactive) - (save-excursion - (goto-char 0) - (let* ((field (if (pelican-is-markdown) "Date" ":date")) - (re (format "^%s: [-0-9 :]+\n" field)) - (date (pelican-timestamp-now))) - (if (re-search-forward re nil t) - (replace-match (format "%s: %s\n" field date)) - (message "This doesn't look like a Pelican page."))))) + (pelican-set-field "date" (pelican-timestamp))) (defun pelican-publish-draft () "Remove draft status from a Pelican post." (interactive) - (save-excursion - (goto-char 0) - (let* ((field (if (pelican-is-markdown) "Status" ":status")) - (re (format "^%s: draft\n" field))) - (if (re-search-forward re nil t) - (progn - (replace-match (format "")) - (pelican-update-date)) - (message "This doesn't look like a Pelican draft."))))) + (pelican-set-field "status" nil) + (pelican-update-date)) (defun pelican-is-page () "Guess the current buffer is a Pelican page (vs. a post or neither)." - (let ((pelican-base (pelican-find-root))) - (if pelican-base - (let* ((relative (file-relative-name buffer-file-name pelican-base)) - (components (split-string relative "/"))) - (string= "pages" (car (cdr components))))))) + (when-let (pelican-base (pelican-find-root)) + (let* ((relative (file-relative-name buffer-file-name pelican-base)) + (components (split-string relative "/"))) + (equal "pages" (cadr components))))) (defun pelican-default-slug () "Generate a Pelican post/page slug for the current buffer." - (let ((pelican-base (pelican-find-root)) - (file-name (file-name-sans-extension buffer-file-name))) - (if pelican-base - (let* ((relative (file-relative-name file-name pelican-base)) - (components (cdr (split-string relative "/"))) - (components (if (string= "pages" (car components)) - (cdr components) components))) - (mapconcat 'identity components "/")) - (format "%s/%s" - (file-name-nondirectory - (directory-file-name - (file-name-directory file-name))) - (file-name-base file-name))))) + (if-let ((pelican-base (pelican-find-root)) + (file-name (file-name-sans-extension buffer-file-name))) + (let* ((relative (file-relative-name file-name pelican-base)) + (components (cdr (split-string relative "/"))) + (components (if (string= "pages" (car components)) + (cdr components) components))) + (mapconcat 'identity components "/")) + (format "%s/%s" + (file-name-nondirectory + (directory-file-name + (file-name-directory file-name))) + (file-name-base file-name)))) (defun pelican-find-in-parents (file-name) "Find FILE-NAME in the default directory or one of its parents, or nil." @@ -146,29 +150,28 @@ string or 't to use the current date and time." (defun pelican-find-root () "Return the root of the buffer's Pelican site, or nil." - (let ((conf (pelican-find-in-parents "pelicanconf.py"))) - (if conf (file-name-directory conf)))) + (when-let (conf (pelican-find-in-parents "pelicanconf.py")) + (file-name-directory conf))) (defun pelican-is-in-site () "Check if this buffer is under a Pelican site." - (not (not (pelican-find-root)))) + (not (null (pelican-find-root)))) (defun pelican-enable-if-site () "Enable `pelican-mode' if this buffer is under a Pelican site." - (if (pelican-is-in-site) - (pelican-mode 1))) + (when (pelican-is-in-site) + (pelican-mode 1))) (defun pelican-make (target) "Execute TARGET in a Makefile at the root of the site." (interactive "sMake Pelican target: ") - (let ((default-directory (pelican-find-root))) - (if default-directory - (let ((output (get-buffer-create "*Pelican Output*"))) - (display-buffer output) - (pop-to-buffer output) - (compilation-mode) - (start-process "Pelican Makefile" output "make" target)) - (message "This doesn't look like a Pelican site.")))) + (if-let ((default-directory (pelican-find-root))) + (let ((output (get-buffer-create "*Pelican Output*"))) + (display-buffer output) + (pop-to-buffer output) + (compilation-mode) + (start-process "Pelican Makefile" output "make" target)) + (message "This doesn't look like a Pelican site."))) (defun pelican-make-html () "Generate HTML via a Makefile at the root of the site." @@ -193,21 +196,24 @@ string or 't to use the current date and time." (define-key pelican-keymap (kbd "C-c P u") 'pelican-make-rsync-upload) + +;;;###autoload (define-minor-mode pelican-mode "Toggle Pelican mode. Interactively with no argument, this command toggles the mode. -to show buffer size and position in mode-line. -" +to show buffer size and position in mode-line." :init-value nil :lighter " Pelican" :keymap pelican-keymap - :group 'pelican - ) + :group 'pelican) + +;;;###autoload (add-hook 'markdown-mode-hook 'pelican-enable-if-site) + +;;;###autoload (add-hook 'rst-mode-hook 'pelican-enable-if-site) (provide 'pelican-mode) - ;;; pelican-mode.el ends here