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From: Jean Louis <bugs@gnu.support>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: help-gnu-emacs@gnu.org
Subject: Re: How to tame compiler?
Date: Sat, 1 May 2021 19:19:48 +0300	[thread overview]
Message-ID: <YI1/pApky/uC5m86@protected.localdomain> (raw)
In-Reply-To: <jwvbl9u60o3.fsf-monnier+emacs@gnu.org>

* Stefan Monnier <monnier@iro.umontreal.ca> [2021-05-01 16:39]:
> >   I have to understand it in this example:
> >   
> >   The HTML template is following and it is string:
> >
> >   <html>
> >     <head>
> >       <title>⟦ xml-escape title ⟧</title>
> >     </head>
> >     <body>
> >       <p>Today is one US dollar this many euros: ⟦ usd-eur 1 ⟧</p>
> >     </body>
> >   </html>
> 
> I think the way I'd attack this is similar to what was suggested
> recently.  I think I'd introduce a macro (call it `xml-template`) which
> you'd use maybe as follows:
> 
>     (xml-template
>      (html
>       (head (title ,title))
>       (body (p "Today is one US dollar this many euros: " ,@(usd-eur 1)))))
> 
> where `,` is used to insert a random chunk of plain text,
> whereas `,@` is used to insert a chunk of XML.

Approach is known to me from, is it Scribilo?
https://www.nongnu.org/skribilo/ and Skribe
https://www.nongnu.org/skribilo/#self

I use similar approach for CGI document generation.

My system does allow such inclusion as I can introduce any type of
document.

But let me think:

- HTML template would need to be converted into sex-pressions; (don't
  stone me); it would increase the startup time of preparing the
  template, there are just 127 templates in the database;

- then Markdown documents, what I do with it? Maybe all of 4057 should
  be converted into sex-pressions... with very careful attention to
  detail;  

- then Markdown is not any more Markdown, it would still need to be
  expanded by Emacs Lisp;

- then everything expanded embedded into HTML as Emacs Lisp;

Problems with the process:

- it is not readable any more;

- becomes tiresome, much more work is involved to write simple text;
  HTML template preparation alone involves programming skills; not
  easily scalable;

- it becomes very much error prone, one mistake and all page will not
  interpolate;

- author, who only slighly was thinking about the markup, has now to
  go back into thinking harder about the markup, instead of just
  writing text, author has to mark it up with (p "something") or
  similar; author is not any more in the "lightweight" markup as
  described here:
  https://en.wikipedia.org/wiki/Lightweight_markup_language

That approach would be definitely usable for:

- specific pages where large need arise for interpolation;

- with complex code where a lot of interpolation is taking place



-- 
Jean

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  reply	other threads:[~2021-05-01 16:19 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-22 14:43 How to tame compiler? Jean Louis
2021-04-22 14:46 ` Stefan Monnier
2021-04-22 15:47   ` Jean Louis
2021-04-22 16:06   ` Jean Louis
2021-04-30 13:31   ` Jorge P. de Morais Neto
2021-04-30 19:38     ` rcd-template-eval - was " Jean Louis
2021-04-30 19:48     ` rcd-template-eval, much is in Org mode Jean Louis
2021-04-30 20:06       ` Tassilo Horn
2021-04-30 22:08       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-04-30 23:04         ` Org mode rant Jean Louis
2021-05-01  0:46           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-01  6:10             ` Jean Louis
2021-05-01  6:34               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-01  9:41                 ` On markdown images Jean Louis
2021-05-01  9:59                   ` Yuri Khan
2021-05-01 10:18                     ` Jean Louis
2021-05-01 11:09                       ` Yuri Khan
2021-05-01 11:25                         ` Jean Louis
2021-05-02 19:30                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-03  5:43                           ` Yuri Khan
2021-05-03 17:08                             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-03 23:22                               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-04  2:39                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-01  5:00           ` Org mode rant Bastien
2021-05-01  5:10             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-01  9:16             ` Jean Louis
2021-05-01 10:06               ` Bastien
2021-05-01 10:42                 ` Jean Louis
2021-05-01 10:10               ` Bastien
2021-05-01 11:19                 ` Jean Louis
2021-05-01 13:48                 ` [External] : " Drew Adams
2021-05-01 14:05                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-01 10:10               ` Bastien
2021-04-30 20:23     ` eval myths - Re: How to tame compiler? Jean Louis
2021-04-30 22:11       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-04-30 23:07         ` Jean Louis
2021-05-01  0:28           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-01  8:13       ` tomas
2021-04-30 22:06     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-04-30 22:20       ` Stefan Monnier
2021-04-30 22:31         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-04-30 22:50           ` Stefan Monnier
2021-04-30 22:56             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-01  0:44 ` Michael Heerdegen
2021-05-01  3:49   ` Stefan Monnier
2021-05-01  4:55     ` Michael Heerdegen
2021-05-01  6:34     ` Jean Louis
2021-05-01 13:38       ` Stefan Monnier
2021-05-01 16:19         ` Jean Louis [this message]
2021-05-02  5:41     ` Michael Heerdegen
2021-05-02  7:37       ` Jean Louis
2021-05-02  7:45       ` Jean Louis
2021-05-02  9:06         ` tomas
2021-05-02 11:18           ` Jean Louis
2021-05-02 12:24             ` tomas
2021-05-02 18:17               ` Jean Louis
2021-05-02 12:06           ` Stages of WWW development compared to Emacs Lisp development Jean Louis
2021-05-02 16:51             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-02 18:37               ` Jean Louis
2021-05-02 16:45       ` How to tame compiler? Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-02 22:29       ` Stefan Monnier
2021-05-02 23:14         ` Jean Louis
2021-05-03  1:58           ` Eduardo Ochs
2021-05-03  6:51             ` Eval in templates - " Jean Louis
2021-05-01  4:53   ` Michael Heerdegen
2021-05-01  7:05     ` Jean Louis
2021-05-01  7:59       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-01  6:03   ` Jean Louis
2021-05-01  6:17     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-05-02  5:58     ` Michael Heerdegen
2021-05-02  6:54       ` Jean Louis
2021-05-03 21:39       ` Jean Louis

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