In Texinfo, code is often illustrated in examples that are delimited
by @example and @end example. In such examples,
you can indicate the results of evaluation or an expansion using
‘⇒’ or ‘→’. Likewise, there are commands
to insert glyphs to indicate printed output, error messages, equivalence
of expressions, the location of point in an editor, and GUI operation
sequences.
The glyph-insertion commands do not need to be used within an example, but most often they are. All glyph-insertion commands are followed by empty braces.