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tutorial: Clean up language about syntax extensions

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Brian Anderson 2012-12-20 13:45:54 -08:00
parent 30fac74bf3
commit b7354f114d
1 changed files with 2 additions and 2 deletions
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doc/tutorial.md
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@ -373,8 +373,8 @@ assert y == 4u;
but are instead provided by the libraries. To make it clear to the reader when
a name refers to a syntax extension, the names of all syntax extensions end
with `!`. The standard library defines a few syntax extensions, the most
useful of which is `fmt!`, a `sprintf`-style text formatter that an early
compiler phase expands statically.
useful of which is `fmt!`, a `sprintf`-style text formatter that you will
often see in examples.
`fmt!` supports most of the directives that [printf][pf] supports, but unlike
printf, will give you a compile-time error when the types of the directives