On Sun, Aug 30, 2009 at 04:13:18PM -0700, bilal ghayyad wrote:
> This is the idea david:
>
> Why in the constant string we use the tag and we do not use the tag
> in the BODY?
>
> In other wrods, why we write it $BODY$ and does not write it as
> $q$BODY$q$ or as $$BODY$$?
The string BODY in $BODY$ has no syntactical significance. You could
just as easily use $$ or $supercalifragilisticexpialidocious$. The
only place where the string inside matters is when you're nesting
dollar quoted structures.
> Also why in the single-quote syntax, each backslash will be written
> as four backslashes? While this will not be needed in the
> dolar-quoted string?
Dollar quoting was specifically invented so that people would not have
to use torrents of backslashes and/or single quotes.
Cheers,
David.
--
David Fetter <david@fetter.org> http://fetter.org/
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