Re: DSL in lua

[Vasiliy Tolstov <v.tolstov@...>]

Thanks. =)

2012/12/10 Philipp Janda <siffiejoe@gmx.net>:
> Am 10.12.2012 05:22, schrieb Vasiliy Tolstov:
>
>> 2012/12/7 Philipp Janda <siffiejoe@gmx.net>:
>>>
>>> - add  +V"file" after V"directory inside the parentheses in the startrule
>>
>>
>> Does it possible to rewrite example to avoid this big line in case of
>> many block/rules ?
>
>
> If all your blocks look the same, sure:
>
> local btype = C( W"directory" + W"file" + W"link" + W"socket" )
> -- or even: local btype = ID
>
> startrule( "dsl", _ * (V"block")^0 * eof )
> rule( "block", btype * _ * (str_E) * _ * (P"{"+E"{ expected") * _ *
>
>                (V"owner" + V"group" + V"mode" + V"action")^0 *
>                (P"}"+E"owner|group|mode|action|} expected") * _ )
>
> Your ast nodes look slightly different then:
> - the node id is "block" instead of "file", "directory", etc.
> - the first sub-element is the type of the block -> "file", etc.
> - all other sub-elements are shifted by one.
>
> HTH,
> Philipp
>
>
>
>



-- 
Vasiliy Tolstov,
Clodo.ru
e-mail: v.tolstov@selfip.ru
jabber: vase@selfip.ru