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Q&A

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Comments on How to control how HTML is copied into the clipboard in plain text form?

Parent

How to control how HTML is copied into the clipboard in plain text form?

+5
−1

Premise

The text/plain representation of my HTML5 markup is inequivalent to its CSS3 markup, even in manners which /plain is able to represent, like the amount of line breaks and depth (or even presence of) indentation. Specifically:

  1. When I duplicate the content of a <blockquote>, it is indented with a tabulator, even though my linked CSS3 stylesheet does not indent it.

  2. Similarly, <p>s retain a single line between them even when it is not rendered.

  3. Likewise, margins that would produce a line between non-<p> text lack line breaks between them, rendering them nigh unreadable.

For this question, I care about the indentation. However, if someone is competent enough to generalise to the other problems, I'll be glad for the effort.

Demonstration

An example is how, in firefox-142.0, firefox 'data:text/html;charset=utf-8,<!DOCTYPE html><html><body><p>Unindented</p><blockquote>Indented</blockquote></body></html>' becomes:

Unindented

    Indented

Rationale

I would like my webpage to be as readable as is possible when duplicated into plain text form with Control. To this end, I've appended colons to <h[1-6]> (with ECMAScript). However, I utilise indentation extensively to indicate nested sections. Until the WHATWG implements an <indent> element, which would presumably be indented as <blockquote> is on paste, I need to manually implement this.

Desire

Can this be achieved? If so, how?

History

2 comment threads

Meaing of "Control" (3 comments)
Can you provide an example of desired output? I'm assuming that the text you have put under demonstra... (2 comments)
Post
+0
−1

I don't really understand what you're asking (I barely know how to spell "CSS"), so maybe this is way off base. However, you can make your own <indent> in a style sheet. Here is how I do it:

indent {
  display: block;
  margin-left: 2em;
  margin-right: 0;
  margin-top: 0;
  margin-bottom: 0;
  background: none;
  }

I also use indentation heavily to show document tree structure hierarchy. I used to use <dl> to get nested indentation back when that was the only option. The <indent> defined in the style sheet is much less klunky and works pretty much as expected.

History

1 comment thread

Not What I Asked For, But A Valiant Attempt (1 comment)
Not What I Asked For, But A Valiant Attempt
Mr. Beedell, Roke Julian Lockhart (RJLB)‭ wrote about 1 year ago · edited about 1 year ago

Thank you, although I already have this. It's part of the premise of the question. Access data:text/html + ;charset=utf-8,<!DOCTYPE html><html><body><p>Unindented</p><blockquote>Indented</blockquote></body></html> in firefox-142.0, and regardless of whether it appears indented in the HTML renderer (the viewport), copy the entire content of the page into a text editor, where you'll see that the content of the body > blockquote:nth-child(2) is prepended by a tabulator. An example is visible in posts/294526/history#3.

Apologies for the downvote, but see meta.codidact.com/posts/294590.