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diff --git a/2023/talks/overlay.md b/2023/talks/overlay.md new file mode 100644 index 00000000..a1dbb4a9 --- /dev/null +++ b/2023/talks/overlay.md @@ -0,0 +1,37 @@ +[[!meta title="Improving compiler diagnostics with Overlays"]] +[[!meta copyright="Copyright © 2023 Jeff Trull"]] +[[!inline pages="internal(2023/info/overlay-nav)" raw="yes"]] + +<!-- Initially generated with emacsconf-publish-talk-page and then left alone for manual editing --> +<!-- You can manually edit this file to update the abstract, add links, etc. ---> + + +# Improving compiler diagnostics with Overlays +Jeff Trull (he/him) - Pronunciation: rhymes with "hull" and "dull", IRC: jaafar, @jaafar@hachyderm.io + +[[!inline pages="internal(2023/info/overlay-before)" raw="yes"]] + +Overlays are a feature of Emacs that allow changing the +appearance of text while preserving its contents. They play a prominent +role in packages like org-mode, which uses them to hide or reveal custom +properties and display inline images, and magit, which uses them to +highlight diffs. + +The presenter will give a introduction to the features of overlays, +demonstrating how to: + +- Create and use overlays in Emacs Lisp code +- Query locations in an existing buffer to find out what overlays are +present. + +He will then demonstrate a new compilation minor mode for improving the +readability of error messages, using overlays to flexibly reformat portions +of the compiler output under user control. + + + +[[!inline pages="internal(2023/info/overlay-after)" raw="yes"]] + +[[!inline pages="internal(2023/info/overlay-nav)" raw="yes"]] + + |