[PATCH] (minor) Use lower case keywords in ox-org

[Timothy <tecosaur@gmail.com>]

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Hello,

Just a little thing, if it’s of interest. A while ago I remember upper/lower
case keywords being discussed and the conclusion being that upper case keywords
were only to be used in the manual. Since `ox-org' isn’t the manual, I’ve gone and
lowered the case of all the keywords used there.

All the best,
Timothy

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From d5c0cb92198d315031a5e4539e227b22a1f0b98b Mon Sep 17 00:00:00 2001
From: TEC <tec@tecosaur.com>
Date: Tue, 28 Sep 2021 22:45:55 +0800
Subject: [PATCH] ox-org: Use lower case keywords

* lisp/ox-org.el (org-org-identity, org-org-template): As it has
previously been clarified on the mailing list that upper-case keywords
are only intended for the manual[1], an Org export of an Org file should
use lower-case keywords.

[1]: https://list.orgmode.org/87tuuw3n15.fsf@nicolasgoaziou.fr/
---
 lisp/ox-org.el | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/lisp/ox-org.el b/lisp/ox-org.el
index c2b85473c..0c4290ebf 100644
--- a/lisp/ox-org.el
+++ b/lisp/ox-org.el
@@ -141,7 +141,7 @@ (defun org-org-identity (blob contents _info)
 CONTENTS is its contents, as a string or nil.  INFO is ignored."
   (let ((case-fold-search t))
     (replace-regexp-in-string
-     "^[ \t]*#\\+ATTR_[-_A-Za-z0-9]+:\\(?: .*\\)?\n" ""
+     "^[ \t]*#\\+attr_[-_a-za-z0-9]+:\\(?: .*\\)?\n" ""
      (org-export-expand blob contents t))))
 
 (defun org-org-headline (headline contents info)
@@ -185,26 +185,26 @@ (defun org-org-template (contents info)
 	       (org-element-map (plist-get info :parse-tree) 'keyword
 		 (lambda (k)
 		   (and (string-equal (org-element-property :key k) "OPTIONS")
-			(concat "#+OPTIONS: "
+			(concat "#+options: "
 				(org-element-property :value k)))))
 	       "\n"))
    (and (plist-get info :with-title)
-	(format "#+TITLE: %s\n" (org-export-data (plist-get info :title) info)))
+	(format "#+title: %s\n" (org-export-data (plist-get info :title) info)))
    (and (plist-get info :with-date)
 	(let ((date (org-export-data (org-export-get-date info) info)))
 	  (and (org-string-nw-p date)
-	       (format "#+DATE: %s\n" date))))
+	       (format "#+date: %s\n" date))))
    (and (plist-get info :with-author)
 	(let ((author (org-export-data (plist-get info :author) info)))
 	  (and (org-string-nw-p author)
-	       (format "#+AUTHOR: %s\n" author))))
+	       (format "#+author: %s\n" author))))
    (and (plist-get info :with-email)
 	(let ((email (org-export-data (plist-get info :email) info)))
 	  (and (org-string-nw-p email)
-	       (format "#+EMAIL: %s\n" email))))
+	       (format "#+email: %s\n" email))))
    (and (plist-get info :with-creator)
 	(org-string-nw-p (plist-get info :creator))
-	(format "#+CREATOR: %s\n" (plist-get info :creator)))
+	(format "#+creator: %s\n" (plist-get info :creator)))
    contents))
 
 (defun org-org-timestamp (timestamp _contents _info)
-- 
2.33.0