Backport commit 0f7ceb480 from Emacs

* lisp/ox.el (org-export-as): Use `buffer-chars-modified-tick' and
avoid extra invocations of `org-set-regexps-and-options' and
`org-update-radio-target-regexp' when the buffer is not changed.
Also, disable folding checks.  Folding is irrelevant inside export
buffer.

org-export-as: Do not update buffer settings when not modified
0f7ceb4803cabcb3c406fa7c27ccb7625096058e
Ihor Radchenko
Thu Jun 16 10:53:16 2022 +0300

[ km: This ported commit comes from main's 076dd92ac.  I'm applying it
  here too for bookkeeping/traceability purposes.  ]
This commit is contained in:
Ihor Radchenko 2022-06-16 01:03:18 +08:00 committed by Kyle Meyer
parent 4f8ea50604
commit 4ae72c6174
1 changed files with 11 additions and 5 deletions

View File

@ -2958,11 +2958,12 @@ Return code as a string."
(mapcar (lambda (o) (and (eq (nth 4 o) 'parse) (nth 1 o)))
(append (org-export-get-all-options backend)
org-export-options-alist))))
tree)
tree modified-tick)
;; Update communication channel and get parse tree. Buffer
;; isn't parsed directly. Instead, all buffer modifications
;; and consequent parsing are undertaken in a temporary copy.
(org-export-with-buffer-copy
(font-lock-mode -1)
;; Run first hook with current back-end's name as argument.
(run-hook-with-args 'org-export-before-processing-hook
(org-export-backend-name backend))
@ -2974,6 +2975,7 @@ Return code as a string."
;; potentially invasive changes.
(org-set-regexps-and-options)
(org-update-radio-target-regexp)
(setq modified-tick (buffer-chars-modified-tick))
;; Possibly execute Babel code. Re-run a macro expansion
;; specifically for {{{results}}} since inline source blocks
;; may have generated some more. Refresh buffer properties
@ -2981,8 +2983,10 @@ Return code as a string."
(when org-export-use-babel
(org-babel-exp-process-buffer)
(org-macro-replace-all '(("results" . "$1")) parsed-keywords)
(unless (eq modified-tick (buffer-chars-modified-tick))
(org-set-regexps-and-options)
(org-update-radio-target-regexp))
(setq modified-tick (buffer-chars-modified-tick)))
;; Run last hook with current back-end's name as argument.
;; Update buffer properties and radio targets one last time
;; before parsing.
@ -2990,8 +2994,10 @@ Return code as a string."
(save-excursion
(run-hook-with-args 'org-export-before-parsing-hook
(org-export-backend-name backend)))
(unless (eq modified-tick (buffer-chars-modified-tick))
(org-set-regexps-and-options)
(org-update-radio-target-regexp)
(org-update-radio-target-regexp))
(setq modified-tick (buffer-chars-modified-tick))
;; Update communication channel with environment.
(setq info
(org-combine-plists