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Apologies if my question is silly, it's my first day using abbrev expand.

I have an abbrev set up like this

"bm"           3    "bookmarks-acd1fe"

When I press bm tab, I end up with

bookmarks-acd1fe<tab character here>

I didn't want a tab character, why is it inserting tab? ¯_(ツ)_/¯

  • Simply inserting "bm" should do nothing. Assume a key followed "m"? Which? How did you call "expand abbrev"? – Andreas Röhler Oct 15 at 4:37
  • I pressed tab to call expand abbrev. – american-ninja-warrior Oct 15 at 12:42
  • Okay, added respective answer. – Andreas Röhler Oct 15 at 14:05
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When you enter bmTAB, abbrev expands and then inserts the tab you entered. If you had hit SPACE instead, it would have entered a space.

Emacs links process of expanding abbreviations to a couple of character-inserts, called self-insert-command. I.e. when abbrev-mode is on and such a character gets inserted, Emacs looks before point for an abbreviation and expands it if found. Characters which trigger expand-abbrev are SPACE and TAB. It's also possible to call it interactively: M-x expand-abbrev RET.

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