* [PATCH] Ability to specify :html-head as a function
@ 2024-05-13 0:04 Nathan Nichols
2024-05-13 15:23 ` Ihor Radchenko
0 siblings, 1 reply; 8+ messages in thread
From: Nathan Nichols @ 2024-05-13 0:04 UTC (permalink / raw)
To: emacs-orgmode
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Hello org-mode users,
Here's a patch that adds the ability to specify :html-head as a function. I
think this is a logical change because:
1. It provides a wider range of options for how to use :html-head (before
:html-head could only be a string, now it can also be a function.)
2. It is consistent with the behavior of :html-preamble and
:html-postamble, which can both either be a string or a function.
I probably did this wrong but anyway here's my attempt at a patch
submission. Please let me know if you need any additional information or
have any questions.
Thanks,
-Nate
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From a4c5d3e648898c91858643c27ff6d56cde7af3be Mon Sep 17 00:00:00 2001
From: Nate Nichols <nathannichols454@gmail.com>
Date: Sun, 12 May 2024 19:53:09 -0400
Subject: [PATCH] Squashed commit of the following:
commit 8160b298a544642881fd10c651fd4e736517cf2f
Author: Nate Nichols <nathannichols454@gmail.com>
Date: Sun May 12 19:03:25 2024 -0400
Added ability to specify :html-head as a function
---
lisp/org-element.el | 20 ++++++++++++---
lisp/ox-html.el | 59 +++++++++++++++++++--------------------------
2 files changed, 42 insertions(+), 37 deletions(-)
diff --git a/lisp/org-element.el b/lisp/org-element.el
index cf0982f18..63222c2cc 100644
--- a/lisp/org-element.el
+++ b/lisp/org-element.el
@@ -5578,9 +5578,8 @@ If there is no affiliated keyword, return the empty string."
;; global indentation from the contents of the current element.
(defun org-element-normalize-string (s)
- "Ensure string S ends with a single newline character.
-
-If S isn't a string return it unchanged. If S is the empty
+ "Return S, or evaluate to a string ending with a single newline character.
+If S isn't a string or a function, return it unchanged. If S is the empty
string, return it. Otherwise, return a new string with a single
newline character at its end."
(cond
@@ -5589,6 +5588,21 @@ newline character at its end."
(t (and (string-match "\\(\n[ \t]*\\)*\\'" s)
(replace-match "\n" nil nil s)))))
+
+(defun org-element-normalize-str-or-fn (input &rest trailing)
+ "If INPUT is a string, it is passed to `org-element-normalize-string'.
+If INPUT is a function, it is applied to arguments TRAILING, and the result is
+passed to `org-element-normalize-string'."
+ (let ((s (if (functionp input) (format "%s" (apply input trailing)) input)))
+ (org-element-normalize-string s)))
+
+
+;; Test cases for `org-element-normalize-str-or-fn'
+(cl-assert (string= (org-element-normalize-str-or-fn (lambda (_res) "abcdefg") nil) "abcdefg\n"))
+(cl-assert (string= (org-element-normalize-str-or-fn "abcdefg") "abcdefg\n") nil)
+(cl-assert (= (org-element-normalize-str-or-fn 123 nil) 123))
+
+
(defun org-element-normalize-contents (element &optional ignore-first)
"Normalize plain text in ELEMENT's contents.
diff --git a/lisp/ox-html.el b/lisp/ox-html.el
index ec0add65e..72a8590c4 100644
--- a/lisp/ox-html.el
+++ b/lisp/ox-html.el
@@ -131,7 +131,11 @@
(:html-equation-reference-format "HTML_EQUATION_REFERENCE_FORMAT" nil org-html-equation-reference-format t)
(:html-postamble nil "html-postamble" org-html-postamble)
(:html-preamble nil "html-preamble" org-html-preamble)
- (:html-head "HTML_HEAD" nil org-html-head newline)
+ ;; You should be able to use multiple headline properties "#+EXPORT_HTML_HEAD" in a file.
+ ;; The results of each occurrence will be joined by a newline to form the final string
+ ;; included in the <head> section.
+ ;; TODO: Test/verify this works still. See: `org-export-options-alist'.
+ (:html-head "HTML_HEAD" "html-head" org-html-head newline)
(:html-head-extra "HTML_HEAD_EXTRA" nil org-html-head-extra newline)
(:subtitle "SUBTITLE" nil nil parse)
(:html-head-include-default-style
@@ -1402,6 +1406,24 @@ This option can also be set on with the CREATOR keyword."
:package-version '(Org . "8.0")
:type '(string :tag "Creator string"))
+
+;;;; Template :: Head
+
+(defcustom org-html-head ""
+ "When set to a string, include that string in the HTML header.
+When set to a function, apply this function and insert the
+returned string. The function takes the property list of export
+options as its only argument.
+
+Setting :html-preamble in publishing projects will take
+precedence over this variable."
+ :group 'org-export-html
+ :type '(choice (const :tag "Default (empty)" "")
+ (string :tag "Fixed string")
+ (function :tag "Function (must return a string)")))
+
+
+
;;;; Template :: Preamble
(defcustom org-html-preamble t
@@ -1525,38 +1547,7 @@ style information."
;;;###autoload
(put 'org-html-head-include-default-style 'safe-local-variable 'booleanp)
-(defcustom org-html-head ""
- "Org-wide head definitions for exported HTML files.
-
-This variable can contain the full HTML structure to provide a
-style, including the surrounding HTML tags. You can consider
-including definitions for the following classes: title, todo,
-done, timestamp, timestamp-kwd, tag, target.
-
-For example, a valid value would be:
-
- <style>
- p { font-weight: normal; color: gray; }
- h1 { color: black; }
- .title { text-align: center; }
- .todo, .timestamp-kwd { color: red; }
- .done { color: green; }
- </style>
-
-If you want to refer to an external style, use something like
- <link rel=\"stylesheet\" type=\"text/css\" href=\"mystyles.css\" />
-
-As the value of this option simply gets inserted into the HTML
-<head> header, you can use it to add any arbitrary text to the
-header.
-
-You can set this on a per-file basis using #+HTML_HEAD:,
-or for publication projects using the :html-head property."
- :group 'org-export-html
- :version "24.4"
- :package-version '(Org . "8.0")
- :type 'string)
;;;###autoload
(put 'org-html-head 'safe-local-variable 'stringp)
@@ -2008,8 +1999,8 @@ INFO is a plist used as a communication channel."
(concat
(when (plist-get info :html-head-include-default-style)
(org-element-normalize-string org-html-style-default))
- (org-element-normalize-string (plist-get info :html-head))
- (org-element-normalize-string (plist-get info :html-head-extra))
+ (org-element-normalize-str-or-fn (plist-get info :html-head) info)
+ (org-element-normalize-str-or-fn (plist-get info :html-head-extra) info)
(when (and (plist-get info :html-htmlized-css-url)
(eq org-html-htmlize-output-type 'css))
(org-html-close-tag "link"
--
2.34.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] Ability to specify :html-head as a function
2024-05-13 0:04 [PATCH] Ability to specify :html-head as a function Nathan Nichols
@ 2024-05-13 15:23 ` Ihor Radchenko
[not found] ` <CACJZKxjn-z2g81zJ2N1_-GMxd2stqC-4wZPVpNSiwtMj1V+jKQ@mail.gmail.com>
0 siblings, 1 reply; 8+ messages in thread
From: Ihor Radchenko @ 2024-05-13 15:23 UTC (permalink / raw)
To: Nathan Nichols; +Cc: emacs-orgmode
Nathan Nichols <nathannichols454@gmail.com> writes:
> Here's a patch that adds the ability to specify :html-head as a function. I
> think this is a logical change because:
>
> 1. It provides a wider range of options for how to use :html-head (before
> :html-head could only be a string, now it can also be a function.)
> 2. It is consistent with the behavior of :html-preamble and
> :html-postamble, which can both either be a string or a function.
Thanks!
This addition makes sense.
> I probably did this wrong but anyway here's my attempt at a patch
> submission. Please let me know if you need any additional information or
> have any questions.
>
> Thanks,
>
> --- a/lisp/org-element.el
> +++ b/lisp/org-element.el
> @@ -5578,9 +5578,8 @@ If there is no affiliated keyword, return the empty string."
> ;; global indentation from the contents of the current element.
>
> (defun org-element-normalize-string (s)
> - "Ensure string S ends with a single newline character.
> -
> -If S isn't a string return it unchanged. If S is the empty
> + "Return S, or evaluate to a string ending with a single newline character.
> +If S isn't a string or a function, return it unchanged. If S is the empty
> string, return it. Otherwise, return a new string with a single
> newline character at its end."
> (cond
> @@ -5589,6 +5588,21 @@ newline character at its end."
> (t (and (string-match "\\(\n[ \t]*\\)*\\'" s)
> (replace-match "\n" nil nil s)))))
Please, do not remove existing functions.
Also, please do not modify org-element library when it is just for the
purposes of a single exporter. org-element library is the Org mode
parser, used by all parts of Org mode.
Instead, you can simply define a helper function inside ox-html.el.
> +;; Test cases for `org-element-normalize-str-or-fn'
> +(cl-assert (string= (org-element-normalize-str-or-fn (lambda (_res) "abcdefg") nil) "abcdefg\n"))
> +(cl-assert (string= (org-element-normalize-str-or-fn "abcdefg") "abcdefg\n") nil)
> +(cl-assert (= (org-element-normalize-str-or-fn 123 nil) 123))
Tests should go to testing/lisp/..., which see.
> (defun org-element-normalize-contents (element &optional ignore-first)
> "Normalize plain text in ELEMENT's contents.
>
> diff --git a/lisp/ox-html.el b/lisp/ox-html.el
> index ec0add65e..72a8590c4 100644
> --- a/lisp/ox-html.el
> +++ b/lisp/ox-html.el
> @@ -131,7 +131,11 @@
> (:html-equation-reference-format "HTML_EQUATION_REFERENCE_FORMAT" nil org-html-equation-reference-format t)
> (:html-postamble nil "html-postamble" org-html-postamble)
> (:html-preamble nil "html-preamble" org-html-preamble)
> - (:html-head "HTML_HEAD" nil org-html-head newline)
> + ;; You should be able to use multiple headline properties "#+EXPORT_HTML_HEAD" in a file.
> + ;; The results of each occurrence will be joined by a newline to form the final string
> + ;; included in the <head> section.
> + ;; TODO: Test/verify this works still. See: `org-export-options-alist'.
> + (:html-head "HTML_HEAD" "html-head" org-html-head newline)
What is the purpose of "html-head" #+options keyword addition?
Also, is TODO comment for you or for others?
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] Ability to specify :html-head as a function
[not found] ` <87jziiptoh.fsf@localhost>
@ 2024-06-21 19:21 ` Nathan Nichols
2024-06-22 12:35 ` Ihor Radchenko
0 siblings, 1 reply; 8+ messages in thread
From: Nathan Nichols @ 2024-06-21 19:21 UTC (permalink / raw)
To: Ihor Radchenko, emacs-orgmode
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> This looks like a copy-paste of `org-element-normalize-string'.
> Why not simply calling `org-element-normalize-string'?
I changed it at one point, but then changed it back and didn't realize that
it was ultimately unchanged.
Here's a patch that uses `org-element-normalize-string` instead.
> Also, may we move this discussion to Org mailing list? I prefer the
> discussions and development to be public (it helps future maintainers).
Yes, of course. I think I just forgot to hit "reply all".
On Fri, Jun 21, 2024 at 4:47 AM Ihor Radchenko <yantar92@posteo.net> wrote:
> Nathan Nichols <nathannichols454@gmail.com> writes:
>
> > Subject: [PATCH] Added ability to specify :html-head as a string or
> function
> > ...
> > +(defun org-html-normalize-str (s)
> > + "Return S, or evaluate to a string ending with a single newline
> character.
> > +If S isn't a string or a function, return it unchanged. If S is the
> empty
> > +string, return it. Otherwise, return a new string with a single
> > +newline character at its end."
> > + (cond
> > + ((not (stringp s)) s)
> > + ((string= "" s) "")
> > + (t (and (string-match "\\(\n[ \t]*\\)*\\'" s)
> > + (replace-match "\n" nil nil s)))))
>
> This looks like a copy-paste of `org-element-normalize-string'.
> Why not simply calling `org-element-normalize-string'?
>
> Also, may we move this discussion to Org mailing list? I prefer the
> discussions and development to be public (it helps future maintainers).
>
> --
> Ihor Radchenko // yantar92,
> Org mode contributor,
> Learn more about Org mode at <https://orgmode.org/>.
> Support Org development at <https://liberapay.com/org-mode>,
> or support my work at <https://liberapay.com/yantar92>
>
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From 4f4f5c76a490eaab86d721a1331dcee5307687d0 Mon Sep 17 00:00:00 2001
From: Nate Nichols <nathannichols454@gmail.com>
Date: Thu, 20 Jun 2024 14:25:35 -0400
Subject: [PATCH] Added ability to specify :html-head as a string or function
---
lisp/ox-html.el | 13 ++++++++++---
testing/lisp/test-ox-html.el | 6 ++++++
2 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/lisp/ox-html.el b/lisp/ox-html.el
index d1687cf5a..0139aa88c 100644
--- a/lisp/ox-html.el
+++ b/lisp/ox-html.el
@@ -2001,15 +2001,22 @@ INFO is a plist used as a communication channel."
org-html-meta-tags))
""))))
+(defun org-html-normalize-str-or-fn (input &rest trailing)
+ "If INPUT is a string, it is passed to `org-element-normalize-string'.
+If INPUT is a function, it is applied to arguments TRAILING, and the result is
+passed to `org-element-normalize-string'."
+ (let ((s (if (functionp input) (format "%s" (apply input trailing)) input)))
+ (org-element-normalize-str s)))
+
(defun org-html--build-head (info)
"Return information for the <head>..</head> of the HTML output.
INFO is a plist used as a communication channel."
(org-element-normalize-string
(concat
(when (plist-get info :html-head-include-default-style)
- (org-element-normalize-string org-html-style-default))
- (org-element-normalize-string (plist-get info :html-head))
- (org-element-normalize-string (plist-get info :html-head-extra))
+ (org-element-normalize-str org-html-style-default))
+ (org-html-normalize-str-or-fn (plist-get info :html-head) info)
+ (org-html-normalize-str-or-fn (plist-get info :html-head-extra) info)
(when (and (plist-get info :html-htmlized-css-url)
(eq org-html-htmlize-output-type 'css))
(org-html-close-tag "link"
diff --git a/testing/lisp/test-ox-html.el b/testing/lisp/test-ox-html.el
index 0959d1441..d079cd271 100644
--- a/testing/lisp/test-ox-html.el
+++ b/testing/lisp/test-ox-html.el
@@ -996,5 +996,11 @@ entirely."
(should (= 0 (how-many "Created: ")))
(should (= 1 (how-many "Author=Monsieur Oeuf")))))))
+(ert-deftest ox-html/test-normalize-str-or-fn ()
+ ;; Test cases for `org-element-normalize-str-or-fn'
+ (should (string= (org-html-normalize-str-or-fn (lambda (_res) "abcdefg") nil) "abcdefg\n"))
+ (should (string= (org-html-normalize-str-or-fn "abcdefg") "abcdefg\n"))
+ (should (= (org-element-normalize-str-or-fn 123 nil) 123)))
+
(provide 'test-ox-html)
;;; test-ox-html.el ends here
--
2.34.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] Ability to specify :html-head as a function
2024-06-21 19:21 ` Nathan Nichols
@ 2024-06-22 12:35 ` Ihor Radchenko
2024-06-29 14:19 ` Nathan Nichols
0 siblings, 1 reply; 8+ messages in thread
From: Ihor Radchenko @ 2024-06-22 12:35 UTC (permalink / raw)
To: Nathan Nichols; +Cc: emacs-orgmode
Nathan Nichols <nathannichols454@gmail.com> writes:
>> This looks like a copy-paste of `org-element-normalize-string'.
>> Why not simply calling `org-element-normalize-string'?
>
> I changed it at one point, but then changed it back and didn't realize that
> it was ultimately unchanged.
> Here's a patch that uses `org-element-normalize-string` instead.
Thanks!
> +(defun org-html-normalize-str-or-fn (input &rest trailing)
> + "If INPUT is a string, it is passed to `org-element-normalize-string'.
Ideally, the first line of the docstring should fully describe what
function does.
Maybe you can add something like
Normalize INPUT function or string. Return a string or nil.
> +If INPUT is a function, it is applied to arguments TRAILING, and the result is
> +passed to `org-element-normalize-string'."
> + (let ((s (if (functionp input) (format "%s" (apply input trailing)) input)))
> + (org-element-normalize-str s)))
^org-element-normalize-string
TRAILING name is confusing because it is not what one expects to be a
name of function arguments. Maybe
(defun org-html-normalize-str-or-fn (input &rest args)
Also, you need to update docstrings and type definitions for
`org-html-head' and `org-html-head-extra', update the Org manual, and
announce the new allowed values in etc/ORG-NEWS.
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] Ability to specify :html-head as a function
2024-06-22 12:35 ` Ihor Radchenko
@ 2024-06-29 14:19 ` Nathan Nichols
2024-06-30 8:30 ` Rudolf Adamkovič
0 siblings, 1 reply; 8+ messages in thread
From: Nathan Nichols @ 2024-06-29 14:19 UTC (permalink / raw)
To: Ihor Radchenko; +Cc: emacs-orgmode
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Ok, here's a patch. Please let me know if this is acceptable or not.
On Sat, Jun 22, 2024 at 8:33 AM Ihor Radchenko <yantar92@posteo.net> wrote:
> Nathan Nichols <nathannichols454@gmail.com> writes:
>
> >> This looks like a copy-paste of `org-element-normalize-string'.
> >> Why not simply calling `org-element-normalize-string'?
> >
> > I changed it at one point, but then changed it back and didn't realize
> that
> > it was ultimately unchanged.
> > Here's a patch that uses `org-element-normalize-string` instead.
>
> Thanks!
>
> > +(defun org-html-normalize-str-or-fn (input &rest trailing)
> > + "If INPUT is a string, it is passed to `org-element-normalize-string'.
>
> Ideally, the first line of the docstring should fully describe what
> function does.
>
> Maybe you can add something like
>
> Normalize INPUT function or string. Return a string or nil.
>
> > +If INPUT is a function, it is applied to arguments TRAILING, and the
> result is
> > +passed to `org-element-normalize-string'."
> > + (let ((s (if (functionp input) (format "%s" (apply input trailing))
> input)))
> > + (org-element-normalize-str s)))
> ^org-element-normalize-string
>
> TRAILING name is confusing because it is not what one expects to be a
> name of function arguments. Maybe
>
> (defun org-html-normalize-str-or-fn (input &rest args)
>
>
> Also, you need to update docstrings and type definitions for
> `org-html-head' and `org-html-head-extra', update the Org manual, and
> announce the new allowed values in etc/ORG-NEWS.
>
> --
> Ihor Radchenko // yantar92,
> Org mode contributor,
> Learn more about Org mode at <https://orgmode.org/>.
> Support Org development at <https://liberapay.com/org-mode>,
> or support my work at <https://liberapay.com/yantar92>
>
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From 3b3ad45f506c3446fda0d7702913f1badfd20d46 Mon Sep 17 00:00:00 2001
From: Nate Nichols <nathannichols454@gmail.com>
Date: Thu, 20 Jun 2024 14:25:35 -0400
Subject: [PATCH] Added ability to specify :html-head as a string or function
---
etc/ORG-NEWS | 6 ++++++
lisp/ox-html.el | 28 +++++++++++++++++++++-------
testing/lisp/test-ox-html.el | 6 ++++++
3 files changed, 33 insertions(+), 7 deletions(-)
diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS
index b9f51667d..59aceea02 100644
--- a/etc/ORG-NEWS
+++ b/etc/ORG-NEWS
@@ -92,7 +92,13 @@ This results in an error such as:
Runtime error near line 2: attempt to write a readonly database (8)
[ Babel evaluation exited with code 1 ]
#+end_example
+*** ~org-html-head~ and ~org-html-head-extra~ can now be specified as functions
+Previously, ~org-html-head~ and ~org-html-head-extra~ could only be
+specified directly as strings. Now, they can be set to functions that
+accept the project p-list and return a string. This makes it possible
+to dynamically generate the content of the resulting ~<head>~ tag in
+the resulting HTML document.
** Miscellaneous
*** Trailing =-= is now allowed in plain links
diff --git a/lisp/ox-html.el b/lisp/ox-html.el
index d1687cf5a..6119bc82a 100644
--- a/lisp/ox-html.el
+++ b/lisp/ox-html.el
@@ -1531,7 +1531,8 @@ style information."
This variable can contain the full HTML structure to provide a
style, including the surrounding HTML tags. You can consider
including definitions for the following classes: title, todo,
-done, timestamp, timestamp-kwd, tag, target.
+done, timestamp, timestamp-kwd, tag, target. Can be a string, or
+a function that accepts the project p-list and returns a string.
For example, a valid value would be:
@@ -1556,19 +1557,23 @@ or for publication projects using the :html-head property."
:group 'org-export-html
:version "24.4"
:package-version '(Org . "8.0")
- :type 'string)
+ :type '(choice (string :tag "Literal text to insert")
+ (function :tag "Function evaluating to a string")))
;;;###autoload
(put 'org-html-head 'safe-local-variable 'stringp)
(defcustom org-html-head-extra ""
"More head information to add in the HTML output.
-You can set this on a per-file basis using #+HTML_HEAD_EXTRA:,
-or for publication projects using the :html-head-extra property."
+You can set this on a per-file basis using #+HTML_HEAD_EXTRA:, or
+for publication projects using the :html-head-extra property.
+Can be a string, or a function that accepts the project p-list
+and returns a string."
:group 'org-export-html
:version "24.4"
:package-version '(Org . "8.0")
- :type 'string)
+ :type '(choice (string :tag "Literal text to insert")
+ (function :tag "Function evaluating to a string")))
;;;###autoload
(put 'org-html-head-extra 'safe-local-variable 'stringp)
@@ -2001,6 +2006,15 @@ INFO is a plist used as a communication channel."
org-html-meta-tags))
""))))
+(defun org-html-normalize-str-or-fn (input &rest args)
+ "Normalize INPUT function or string. Return a string or nil.
+If INPUT is a string, it is passed to
+`org-element-normalize-string'. If INPUT is a function, it is
+applied to arguments ARGS, and the result is passed to
+`org-element-normalize-string'."
+ (let ((s (if (functionp input) (format "%s" (apply input args)) input)))
+ (org-element-normalize-string s)))
+
(defun org-html--build-head (info)
"Return information for the <head>..</head> of the HTML output.
INFO is a plist used as a communication channel."
@@ -2008,8 +2022,8 @@ INFO is a plist used as a communication channel."
(concat
(when (plist-get info :html-head-include-default-style)
(org-element-normalize-string org-html-style-default))
- (org-element-normalize-string (plist-get info :html-head))
- (org-element-normalize-string (plist-get info :html-head-extra))
+ (org-html-normalize-str-or-fn (plist-get info :html-head) info)
+ (org-html-normalize-str-or-fn (plist-get info :html-head-extra) info)
(when (and (plist-get info :html-htmlized-css-url)
(eq org-html-htmlize-output-type 'css))
(org-html-close-tag "link"
diff --git a/testing/lisp/test-ox-html.el b/testing/lisp/test-ox-html.el
index 0959d1441..d079cd271 100644
--- a/testing/lisp/test-ox-html.el
+++ b/testing/lisp/test-ox-html.el
@@ -996,5 +996,11 @@ entirely."
(should (= 0 (how-many "Created: ")))
(should (= 1 (how-many "Author=Monsieur Oeuf")))))))
+(ert-deftest ox-html/test-normalize-str-or-fn ()
+ ;; Test cases for `org-element-normalize-str-or-fn'
+ (should (string= (org-html-normalize-str-or-fn (lambda (_res) "abcdefg") nil) "abcdefg\n"))
+ (should (string= (org-html-normalize-str-or-fn "abcdefg") "abcdefg\n"))
+ (should (= (org-element-normalize-str-or-fn 123 nil) 123)))
+
(provide 'test-ox-html)
;;; test-ox-html.el ends here
--
2.34.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] Ability to specify :html-head as a function
2024-06-29 14:19 ` Nathan Nichols
@ 2024-06-30 8:30 ` Rudolf Adamkovič
2024-06-30 20:13 ` Nathan Nichols
0 siblings, 1 reply; 8+ messages in thread
From: Rudolf Adamkovič @ 2024-06-30 8:30 UTC (permalink / raw)
To: Nathan Nichols, Ihor Radchenko; +Cc: emacs-orgmode
Nathan Nichols <nathannichols454@gmail.com> writes:
> +(defun org-html-normalize-str-or-fn (input &rest args)
How about
org-html-normalize-string-or-function
instead of
org-html-normalize-str-or-fn
to match
org-element-normalize-string
and make searching easier?
Rudy
--
"Great minds discuss ideas; average minds discuss events; small minds
discuss people." --- Anna Eleanor Roosevelt (1884-1962)
Rudolf Adamkovič <rudolf@adamkovic.org> [he/him]
http://adamkovic.org
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] Ability to specify :html-head as a function
2024-06-30 8:30 ` Rudolf Adamkovič
@ 2024-06-30 20:13 ` Nathan Nichols
2024-07-02 11:59 ` Ihor Radchenko
0 siblings, 1 reply; 8+ messages in thread
From: Nathan Nichols @ 2024-06-30 20:13 UTC (permalink / raw)
To: Rudolf Adamkovič; +Cc: Ihor Radchenko, emacs-orgmode
[-- Attachment #1.1: Type: text/plain, Size: 715 bytes --]
Ok here's an updated patch. Please let me know if there's anything else.
On Sun, Jun 30, 2024 at 4:30 AM Rudolf Adamkovič <rudolf@adamkovic.org>
wrote:
> Nathan Nichols <nathannichols454@gmail.com> writes:
>
> > +(defun org-html-normalize-str-or-fn (input &rest args)
>
> How about
>
> org-html-normalize-string-or-function
>
> instead of
>
> org-html-normalize-str-or-fn
>
> to match
>
> org-element-normalize-string
>
> and make searching easier?
>
> Rudy
> --
> "Great minds discuss ideas; average minds discuss events; small minds
> discuss people." --- Anna Eleanor Roosevelt (1884-1962)
>
> Rudolf Adamkovič <rudolf@adamkovic.org> [he/him]
> http://adamkovic.org
>
[-- Attachment #1.2: Type: text/html, Size: 1279 bytes --]
[-- Attachment #2: 0001-Added-ability-to-specify-html-head-as-a-string-or-fu.patch --]
[-- Type: text/x-patch, Size: 5106 bytes --]
From 153ee0e8ff2a0b17fa7d928af66a608dac18d31b Mon Sep 17 00:00:00 2001
From: Nate Nichols <nathannichols454@gmail.com>
Date: Thu, 20 Jun 2024 14:25:35 -0400
Subject: [PATCH] Added ability to specify :html-head as a string or function
---
etc/ORG-NEWS | 6 ++++++
lisp/ox-html.el | 29 ++++++++++++++++++++++-------
testing/lisp/test-ox-html.el | 8 ++++++++
3 files changed, 36 insertions(+), 7 deletions(-)
diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS
index b9f51667d..59aceea02 100644
--- a/etc/ORG-NEWS
+++ b/etc/ORG-NEWS
@@ -92,7 +92,13 @@ This results in an error such as:
Runtime error near line 2: attempt to write a readonly database (8)
[ Babel evaluation exited with code 1 ]
#+end_example
+*** ~org-html-head~ and ~org-html-head-extra~ can now be specified as functions
+Previously, ~org-html-head~ and ~org-html-head-extra~ could only be
+specified directly as strings. Now, they can be set to functions that
+accept the project p-list and return a string. This makes it possible
+to dynamically generate the content of the resulting ~<head>~ tag in
+the resulting HTML document.
** Miscellaneous
*** Trailing =-= is now allowed in plain links
diff --git a/lisp/ox-html.el b/lisp/ox-html.el
index d1687cf5a..304671f7e 100644
--- a/lisp/ox-html.el
+++ b/lisp/ox-html.el
@@ -1531,7 +1531,8 @@ style information."
This variable can contain the full HTML structure to provide a
style, including the surrounding HTML tags. You can consider
including definitions for the following classes: title, todo,
-done, timestamp, timestamp-kwd, tag, target.
+done, timestamp, timestamp-kwd, tag, target. Can be a string, or
+a function that accepts the project p-list and returns a string.
For example, a valid value would be:
@@ -1556,19 +1557,23 @@ or for publication projects using the :html-head property."
:group 'org-export-html
:version "24.4"
:package-version '(Org . "8.0")
- :type 'string)
+ :type '(choice (string :tag "Literal text to insert")
+ (function :tag "Function evaluating to a string")))
;;;###autoload
(put 'org-html-head 'safe-local-variable 'stringp)
(defcustom org-html-head-extra ""
"More head information to add in the HTML output.
-You can set this on a per-file basis using #+HTML_HEAD_EXTRA:,
-or for publication projects using the :html-head-extra property."
+You can set this on a per-file basis using #+HTML_HEAD_EXTRA:, or
+for publication projects using the :html-head-extra property.
+Can be a string, or a function that accepts the project p-list
+and returns a string."
:group 'org-export-html
:version "24.4"
:package-version '(Org . "8.0")
- :type 'string)
+ :type '(choice (string :tag "Literal text to insert")
+ (function :tag "Function evaluating to a string")))
;;;###autoload
(put 'org-html-head-extra 'safe-local-variable 'stringp)
@@ -2001,6 +2006,15 @@ INFO is a plist used as a communication channel."
org-html-meta-tags))
""))))
+(defun org-html-normalize-string-or-function (input &rest args)
+ "Normalize INPUT function or string. Return a string or nil.
+If INPUT is a string, it is passed to
+`org-element-normalize-string'. If INPUT is a function, it is
+applied to arguments ARGS, and the result is passed to
+`org-element-normalize-string'."
+ (let ((s (if (functionp input) (format "%s" (apply input args)) input)))
+ (org-element-normalize-string s)))
+
(defun org-html--build-head (info)
"Return information for the <head>..</head> of the HTML output.
INFO is a plist used as a communication channel."
@@ -2008,8 +2022,9 @@ INFO is a plist used as a communication channel."
(concat
(when (plist-get info :html-head-include-default-style)
(org-element-normalize-string org-html-style-default))
- (org-element-normalize-string (plist-get info :html-head))
- (org-element-normalize-string (plist-get info :html-head-extra))
+ (org-html-normalize-string-or-function (plist-get info :html-head) info)
+ (org-html-normalize-string-or-function (plist-get info :html-head-extra)
+ info)
(when (and (plist-get info :html-htmlized-css-url)
(eq org-html-htmlize-output-type 'css))
(org-html-close-tag "link"
diff --git a/testing/lisp/test-ox-html.el b/testing/lisp/test-ox-html.el
index 0959d1441..af3007392 100644
--- a/testing/lisp/test-ox-html.el
+++ b/testing/lisp/test-ox-html.el
@@ -996,5 +996,13 @@ entirely."
(should (= 0 (how-many "Created: ")))
(should (= 1 (how-many "Author=Monsieur Oeuf")))))))
+(ert-deftest ox-html/test-normalize-string-or-function ()
+ ;; Test cases for `org-element-normalize-string-or-function'
+ (should (string= (org-html-normalize-string-or-function
+ (lambda (_res) "abcdefg") nil) "abcdefg\n"))
+ (should (string= (org-html-normalize-string-or-function "abcdefg")
+ "abcdefg\n"))
+ (should (= (org-element-normalize-string-or-function 123 nil) 123)))
+
(provide 'test-ox-html)
;;; test-ox-html.el ends here
--
2.34.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] Ability to specify :html-head as a function
2024-06-30 20:13 ` Nathan Nichols
@ 2024-07-02 11:59 ` Ihor Radchenko
0 siblings, 0 replies; 8+ messages in thread
From: Ihor Radchenko @ 2024-07-02 11:59 UTC (permalink / raw)
To: Nathan Nichols; +Cc: Rudolf Adamkovič, emacs-orgmode
Nathan Nichols <nathannichols454@gmail.com> writes:
> Ok here's an updated patch. Please let me know if there's anything else.
Thanks!
> Subject: [PATCH] Added ability to specify :html-head as a string or function
Please add changelog to the commit message.
See https://orgmode.org/worg/org-contribute.html#commit-messages
> --- a/lisp/ox-html.el
> +++ b/lisp/ox-html.el
> @@ -1531,7 +1531,8 @@ style information."
> This variable can contain the full HTML structure to provide a
> style, including the surrounding HTML tags. You can consider
> including definitions for the following classes: title, todo,
> -done, timestamp, timestamp-kwd, tag, target.
> +done, timestamp, timestamp-kwd, tag, target. Can be a string, or
> +a function that accepts the project p-list and returns a string.
> ...
> (defcustom org-html-head-extra ""
> "More head information to add in the HTML output.
>
> -You can set this on a per-file basis using #+HTML_HEAD_EXTRA:,
> -or for publication projects using the :html-head-extra property."
> +You can set this on a per-file basis using #+HTML_HEAD_EXTRA:, or
> +for publication projects using the :html-head-extra property.
> +Can be a string, or a function that accepts the project p-list
> +and returns a string."
We usually say INFO plist or INFO channel. "Project p-list" is not a
term we use.
> :group 'org-export-html
> :version "24.4"
> :package-version '(Org . "8.0")
Please change :package-version to 9.8. This slot indicates the most
recent version when the meaning of default value of the option has been
changed.
> +(defun org-html-normalize-string-or-function (input &rest args)
> + "Normalize INPUT function or string. Return a string or nil.
"String or nil" is not accurate, actually. Because
`org-element-normalize-stirng' either returns the argument unchanged or
returns a string. Maybe better just drop "Return a string or nil"
completely.
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
^ permalink raw reply [flat|nested] 8+ messages in thread
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