such
as <a href="https://www.gnu.org/software/emacs/">GNU Emacs</a>,
<a href="https://gedit-text-editor.org">gedit</a>, and
<a href="https://www.vim.org">vim</a>.
Specialized source-file editing can be done via the
<a href="https://packagecontrol.io/packages/zoneinfo">Sublime
zoneinfo</a> package for <a
href="https://www.sublimetext.com">Sublime Text</a> and the <a
href="https://marketplace.visualstudio.com/items?itemName=gilmoreorless.vscode-zoneinfo">VSCode
zoneinfo</a> extension for <a href="https://code