A Few Typographical Conventions
The book encloses "literal strings"
between double quotes
and single characters, like `a
´, between single quotes.
Strings that are used as patterns are also enclosed between single quotes,
like '[%w_]*
'.
The book uses a courier font both for little chunks of code
and for identifiers
.
Larger chunks of code are shown in display style:
-- program "Hello World"
print("Hello World") --> Hello World
The notation -->
shows the output of a statement or,
occasionally, the result of an expression:
print(10) --> 10
13 + 3 --> 16
Because a double hyphen (--
) starts a comment in Lua,
there is no problem if you include those annotations in your programs.
Finally, the book uses the notation <-->
to indicate that something
is equivalent to something else:
this <--> that
That is, there is no difference to Lua whether
you write this
or that
.
Copyright © 2003-2004 Roberto Ierusalimschy. All rights reserved.
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