ido: Prefix Matching
2.2 Prefix Matching
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The standard way of completion with *nix shells and Emacs is to insert a
“prefix” and then hitting <TAB> (or another completion key). Cause of
this behavior has become second nature to a lot of Emacs users Ido
offers in addition to the default substring matching method (look above)
also the prefix matching method. The kind of matching is the only
difference to the description of the substring matching above.
You can toggle prefix matching with ‘C-p’ (‘ido-toggle-prefix’).
For example, if you have two buffers ‘123456’ and ‘123’ then hitting
‘2’ does not match because ‘2’ is not a prefix in any of the buffer
names.
Info Catalog
ido: Interactive Substring Matching
ido: Matching
ido: Flexible Matching