[ragel-users] Newbie question: machine actions

[Adrian Thurston]

Hi Dan,

The action is a scanner pattern action. It can only exist inside a
scanner and gets invoked when the scanner logic determines a pattern has
matched. They function the same as the actions in lex. See section 6.3
in the manual for more information. Note that the => symbol in front of
the code block is optional and has been left out of this example.

Cheers,
 Adrian

Dan V. wrote:
> Hi.  I'm wondering what an embedded action in a machine without a (>,
> $, @ %) symbol means.  For example, in cppscan.rl identifiers are
> matched with:
> 
>     # Identifiers
>     ( [a-zA-Z_] [a-zA-Z0-9_]* )
>         {token( TK_Id );};
> 
> On what condition does token() get called?
> 
> 
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