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I would like to have a capture template that would take a pasted link like:

https://orgmode.org/manual/Completion.html

and return:

[https://orgmode.org/manual/Completion.html][orgmode.org/manual/Completion.html]

My goal is to have a shorter, cleaner description. Even better would be to have it strip the extension from the description as well.

I have seen %(EXP) in the manual but my elisp is novice (purely used for my config files). This my current capture template:

("c" "paste clipboard" entry
 (file "~/Dropbox/inbox.txt")
 "* PROC %c%?" :prepend t)))
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  • You can use %(EXP) (Evaluate Elisp expression EXP and replace it with the result.) to get the style you want. see orgmode.org/manual/Template-expansion.html#Template-expansion Feb 14, 2022 at 1:17
  • Do you have a capture already that does not do the transformation? If so, add it to your question. The transformation itself should be easy.
    – NickD
    Feb 14, 2022 at 2:11
  • By the way, another way to have better descriptions is to have page titles together with the links. Personally I use two methods for this: first, a plugin in the browser for org-capture, which invokes it through org-protocol and passes the title and the address. Second, a plugin that copies both the title and the address to the clipboard, so I paste them anywhere I like. The latter kind of plugins often have customizable templates, so you can have Org-style links ready in the clipboard.
    – aaa
    Feb 15, 2022 at 7:17

1 Answer 1

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You probably want to add something like this:

("l" "Insert a link with a cleaned-up description" entry (file "~/Dropbox/inbox.txt")
 "* [[%c][%(replace-regexp-in-string \"^https?://\" \"\" (replace-regexp-in-string \"\\.[a-z0-9]+$\" \"\" \"%c\"))]]"
 :prepend t)

This removes both the protocol and the extension. However, while that should work via just one regex, for some reason org-capture's processing hiccups when it sees a pipe in the regex, and doesn't perform the replacement. So instead I have to call replace-regexp-in-string twice.

Note that all those backslashes are necessary, including the double one.

Also, removing extensions can be messy: considering that the web doesn't impose any requirements for extensions to be there, people are free to use all kinds of addresses, including ones with a dot and some word at the end. E.g. Wikipedia's page of https://en.wikipedia.org/wiki/.com. These will be stripped from the description by the brute approach. Perhaps you'll want to remove just some known extensions—for that, replace [a-z0-9]+ in the second regex with something like \(html\|php\|cfm\) etc. Again, the backslashes need to be there. To switch off the removal of extensions altogether, replace the second (replace-regexp-in-string ...) with just \"%c\".

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  • Capture templates are confusing enough as it is: they don't need the additional confusion that regexps introduce. IMO, it would be better to define a function that does the transformation (and encapsulates the regexps), and then just call the function in the template. Also, can you explain the difference between %c as the OP had it and %:link as you have it?
    – NickD
    Feb 15, 2022 at 1:29
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    @NickD you were right about the clink discrepancy: I fell back into the habits of dealing with org-protocol, forgetting that the OP has links coming from a different source. Thanks! As for a function, IMO that would be overkill just for the regexes—though dispensing with some backslashes would be nice. However, it might make sense if I add the ability to switch off the replacement of extensions or to customize it, as suggested by my edit. I'll think a bit later of how to better organize that.
    – aaa
    Feb 15, 2022 at 5:30
  • After adding %c that worked. Thanks so much!
    – fred
    Feb 17, 2022 at 0:11

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