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expansions.asciidoc: Add an example of file expansion.

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Properly speaking, all expansions are of the form "%abc{}" where "abc"
is the expansion type. All expansion types are listed in the documentation, as
they should be. However, when searching through the documentation, a keyword
like "file" is likely to hit a lot of false-positives, so a smart user is likely
to search for the more-unique "%file" instead. Unfortunately, unlike every other
expansion-type, file-expansions did not include an example, so a search for
"%file" resulted in no hits, potentially leading people to believe it was
undocumented.

Now there's an example, so people searching for "%file" will find what they're
looking for.
This commit is contained in:
Tim Allen 2020-07-01 23:47:06 +10:00
parent d79b005323
commit 14573244d4
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doc/pages/expansions.asciidoc
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@ -171,6 +171,13 @@ Kakoune uses a shell command, such as the `|`, `!` or `$` normal mode commands
Expansions with the type `file` will expand to the content of the filename
given in argument as read from the host filesystem.
For example, this command stores the entire content of `/etc/passwd` into the
`a` register.
----
set-register a %file{/etc/passwd}
----
== Value expansions
Expansions with the type `val` give access to Kakoune internal data that is