The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Software Development’ Category

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Thanks Stephan Kämper for showing me how to validate HTML on-line at W3C

Posted by jpluimers on 2023/07/05

In Another difference between the and element in HTML&XHTML, I mentioned Stephan Kämper taught be about the W3C HTML NU validator in [Archive] Stephan Kämper on Twitter: “I try to write fairly simple & #valid #HTML ➙ …gist..Validating it with …online HTML-Validator…, I get the error ‘No p element in scope but a p end tag seen.‘ What? Why? Removing the list from the HTML, gets rid of the error… Why?!? I. don’t. get it. 1/2″ / Twitter.

Upon closer inspection, there are actually two w3c.org HTML validators, each operating in three modes:

  1. Default checker which is DTD-based:

    This validator checks the [Wayback/Archive] markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc. If you wish to validate specific content such as [Wayback/Archive] RSS/Atom feeds or [Wayback/Archive] CSS stylesheets, [Wayback/Archive] MobileOK content (now retired), or to [Wayback/Archive] find broken links, there are [Wayback/Archive] other validators and tools available. As an alternative you can also try our [Wayback/Archive] non-DTD-based validator.

    1. [Wayback/Archive] The W3C Markup Validation Service: #validate_by_uri mode (without #validate_by_uri URL fragment) and

      default: checks the HTML of a URL

    2. [Archive] The W3C Markup Validation Service: #validate_by_upload mode

      you upload a file of which the HTML then gets checked

    3. [Archive] The W3C Markup Validation Service: #validate_by_input mode

      you enter the HTML to be checked into a text box

  2. NU checker which is non-DTD-based:
    1. [Wayback/Archive] Ready to check – Nu Html Checker; #address mode (without #address URL fragment) and

      default: checks the HTML of a URL

    2. [Archive] Ready to check – Nu Html Checker: #file mode

      you upload a file of which the HTML then gets checked

    3. [Archive] Ready to check – Nu Html Checker: #textarea mode

      you enter the HTML to be checked into a <textarea> element

Notes:

  1. that all three above modes get selected by a URL fragment (after a # hash) which the Wayback machine cannot individually save, but Archive.is can, hence the non-default URLs are not saved only in Archive.is, and not in the Wayback machine.
  2. The DTD-based checker seems non-functional and redirects all requests to the non-DTD-based checker.

I also took a look at the Wayback machine saved pages under the direct URLs of both checkers:

  1. https://web.archive.org/web/*/https://validator.w3.org/*
  2. https://web.archive.org/web/*/https://validator.w3.org/nu/*

I learned that the NU validator accepts at least these arguments:

Note that you cannot do this directly with HTML files saved in a gist or GitHub repository because it serves all RAW files as

[Wayback/Archive] text/plain MIME type. You can work around this by using a raw.githack.com trick I explained before at:

I also amended my above reply with more information using the ?doc= parameter with RAW gist files and archived that thread at [Wayback/Archive] Thread by @jpluimers on Thread Reader App – Thread Reader App.

–jeroen

Posted in Development, HTML, HTML5, Software Development, Web Development | Leave a Comment »

Another difference between the and element in HTML & XHTML

Posted by jpluimers on 2023/07/04

A few weeks after queueing What is the difference between <p>, <div> and <span> in HTML&XHTML?, Stephan Kämper posted an interesting other “TIL“.

Besides that TIL, it also taught me about an on-line HTML validator. Cool: I learned two things from Stephan that day!

The above post talked about phrasing versus non-phrasing elements, Stephan discovered another difference between the p and div elements:

Stephan’s TIL: [Archive] Stephan Kämper on Twitter: “TIL or Life (and the HTML specification) is full of wonders and surprises ➙ “List elements (in particular, ol and ul elements) cannot be children of p elements.” …” / Twitter

It was based on his quest [Archive] Stephan Kämper on Twitter: “I try to write fairly simple & #valid #HTML ➙ …gist..Validating it with …online HTML-Validator…, I get the error ‘No p element in scope but a p end tag seen.‘ What? Why? Removing the list from the HTML, gets rid of the error… Why?!? I. don’t. get it. 1/2″ / Twitter, which I archived at [Wayback/Archive] Thread by @S_2K on Thread Reader App – Thread Reader App.

I responded this: [Archive] Jeroen Wiert Pluimers on Twitter: “@S_2K I thought it would be something like explained in p/div/span differences But it is yet another html oddity where structural and logical concept are mixed in one language.” / Twitter.

Both his quest and tweet referred to this key documentation part: [Wayback/Archive] HTML Standard: grouping content; the p element; note on lists:

Read the rest of this entry »

Posted in Development, HTML, HTML5, Software Development, Web Development | 1 Comment »

JavaScript Bookmarklet to enable Mastodon publishing for a WordPress.com post that is edited in the Classic Editor

Posted by jpluimers on 2023/07/02

I quickly hacked together this JavaScript Bookmarklet today, so it is without any checks and assumes you have enabled one Mastodon account for publishing, that you are hosting your blog on WordPress.com, and using the Classic Editor:

javascript:(function(){
  publicizeFormEditHref = document.getElementById('publicize-form-edit');
  publicizeFormEditHref.click();
  mastodonCheckboxes = document.getElementsByClassName('wpas-submit-mastodon');
  mastodonCheckboxes[0].checked = true;
  publicizeFormHideHref = document.getElementById('publicize-form-hide');
  publicizeFormHideHref.click();
  updateButtonHref = document.getElementById('publish');
  updateButtonHref.click();
})();

The above code is the state of [Wayback/Archive] JavaScript Bookmarklet for the WordPress classic editor which enables mastodon publishing (assuming you have one mastodon publishing account enabled … )  and due to be improved in a later blog post.

This will enable the currently edited post to be published to Mastodon, then update/publish the post.

On enabling one Mastodon account for publishing:

Read the rest of this entry »

Posted in Bookmarklet, Development, HTML, JavaScript/ECMAScript, Mastodon, Power User, Scripting, SocialMedia, Software Development, Twitter, Web Browsers, Web Development, WordPress, WordPress | Leave a Comment »

Reading list: Remove sensitive data from your git repository

Posted by jpluimers on 2023/06/29

First: [Archive] Laurent Bugnion 🏡 🇨🇭 on Twitter: “@IrisClasson What I do is use a tool AND nuke the secret. For example generate new tokens, modify the connection string etc.” / Twitter.

I agree to nuke the secret before, as opposed to after: [Archive] Matt Kerr on Twitter: “@grahamcox82 @IrisClasson That’s why it’s best practice to issue a new key after removing it. There’s no need to worry about the old one being compromised if you’ve revoked it.” / Twitter.

For my reading list:

All via [Archive] Iris Classon on Twitter: “Don’t shame me for asking this… but… is rebase a safe way to fix accidentally pushing sensitive info to a remote repo? Obviously you’d change the secrets etc. to be sure, but in theory, will rebase remove everything, or is it still in your history somehow?” / Twitter.

–jeroen

Posted in Development, DVCS - Distributed Version Control, git, Software Development, Source Code Management | Leave a Comment »

Converting an inline svg image to file

Posted by jpluimers on 2023/06/28

Via [Wayback/Archive.is] inline svg to file – Google Search, found first [Wayback/Archive] Convert Inline SVG to File – Eyedeal Graphics

  1. Use your browser’s “View Source” or “Page Source” command to view the page’s HTML code.
  2. Locate and copy all the code between the beginning <svg> and closing </svg> tags.
  3. Paste the copied code, including the <svg> and </svg> tags into your text editor of choice. (Atom, Brackets, Visual Studio Code, Sublime Text, etc.)
  4. Save the text file as an SVG file. (ex. legacy-xyz-products-logo.svg)
  5. Open the SVG file in your preferred vector editing tool. (Adobe, Illustrator, Affinity Designer, Sketch, Inkscape, etc.)

That wasn’t enough, as not all SVG files then render properly, so luckily the next hit was [Wayback/Archive] html – Convert an inline SVG into a SVG file – Stack Overflow (thanks [Wayback/Archive] Paul LeBeau):

Read the rest of this entry »

Posted in Development, HTML, HTML5, Software Development, Web Development | Leave a Comment »

Need to check out replay.io: The Time Travel Debugger for Web Development

Posted by jpluimers on 2023/06/27

I need to check out [Wayback/Archive.is] The Time Travel Debugger for Web Development:

one frame of the replay.io demo

one frame of the replay.io demo

Read the rest of this entry »

Posted in Development, JavaScript/ECMAScript, Scripting, Software Development | 1 Comment »

Via isotopp: Yes, I can connect to a DB in CSS

Posted by jpluimers on 2023/06/22

Boy, I wonder what can go wrong with [Wayback/Archive] Yes, I can connect to a DB in CSS

Via: [Wayback/Archive] Kris on Twitter: “… “Yes, I can connect to a DB in CSS” Abusing houdini.how, and using a JS version of Sqlite, CSS can connect to a DB.” / Twitter

Related:

–jeroen

Posted in CSS, Database Development, Development, Software Development, SQLite, Web Development | Leave a Comment »

doegox/EMV-CAP: This tool emulates an EMV-CAP device, to illustrate the article “Banque en ligne : à la decouverte d’EMV-CAP” published in MISC, issue #56

Posted by jpluimers on 2023/06/21

For my link archive: [Wayback/Archive] doegox/EMV-CAP: This tool emulates an EMV-CAP device, to illustrate the article “Banque en ligne : à la decouverte d’EMV-CAP” published in MISC, issue #56.

Via: [Archive] Philippe Teuwen on Twitter: “Our 10 years old EMV-CAP emulator is now republished on Github under GPL3+, use it responsibly! …” / Twitter

Related:

–jeroen

Posted in Development, Python, Scripting, Software Development | Leave a Comment »

Rust tool to make DNS queries: ~mvforell/toluol – sourcehut git

Posted by jpluimers on 2023/06/20

[Wayback/Archive] ~mvforell/toluol – sourcehut git: Rust tool to make DNS queries

From [Archive] Max on Twitter: “@b0rk Shameless plug of an alternative to dig I’ve written: … It’s not complete yet (it can’t do what dig +trace does), but it’s getting there :) I’m also planning to add coloured output to make it more readable. …” / Twitter

In a reaction to [Archive] 🔎Julia Evans🔍 on Twitter: “I wish dig‘s output actually looked like this? I feel like there’s no reason (except compatibility or whatever) that it has to be as unreadable of it is …” / Twitter

Read the rest of this entry »

Posted in *nix, *nix-tools, Development, dig, Power User, Rust, Software Development | Leave a Comment »

JavaScript – how to refresh an iframe automatically – Stack Overflow

Posted by jpluimers on 2023/06/14

Based on [Wayback/Archive] javascript – how to refresh an iframe automatically – Stack Overflow and help from [Archive] Roderick Gadellaa (@RGadellaa) / Twitter, I used this JavaScript code right after the body in the html page to reload part of the iframes every 3 minutes and another part every 3 hours:

<script>
  var iframes3minuteInterval = setInterval( () => {
    const ids3minutes = [ 'agenda_iframe', 'month_iframe' ];
    ids3minutes.forEach( id => {
      element = document.getElementById( id );
      element.src = element.src;
    });
  }, 1000 * 60 * 3);
  var iframes3hourInterval = setInterval( () => {
    const ids3hours = [ 'weerplaza_nederland_iframe', 'weerplaza_radar_iframe', 'buienradar_iframe' ];
    ids3hours.forEach( id => {
      element = document.getElementById( id );
      element.src = element.src;
    });
  }, 1000 * 60 * 60 * 3);
</script>

The iframes are widgets for:

This was to workaround GitLab pages on a custom domain are nice, but be aware of intermittent 502 and certificate errors. Now the page only gets loaded once, and the widgets at intervals that are needed.

—jeroen

Posted in CSS, Development, HTML, JavaScript/ECMAScript, Scripting, Software Development, Web Development | Leave a Comment »

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