Re: is \1 vs $1 a necessary distinction?

>>>>> "DS" == Dave Storrs <[email protected]> writes:

  DS> Both \1 and $1 refer to what is matched by the first set of parens
  DS> in a regex.  AFAIK, the only difference between these two notation
  DS> is that \1 is used within the regex itself and $1 is used outside
  DS> of the regex.  Is there any reason not to standardize these down
  DS> to one notation (i.e., eliminate one or the other)?


because $1 having be set previously will be interpolated INTO the new
regex. so you have to have another notation to refer to grabbed stuff
from the current regex.

uri

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