Re: <reject> and whitespace

On 24 Apr 2001, Randal L. Schwartz wrote:

> >>>>> "Aaron" == Aaron J Mackey <[email protected]> writes:
>
> Aaron> line: word // { $thiscolumn == 22} word # skipping whitespace is automatic
> Aaron> 					# but I require the second word to
> Aaron> 					# start at column 22, hence I need
> Aaron> 					# to skip the whitespace which
> Aaron> 					# preceeds it
>
> Well, // is not ''.  I'd use that instead.  // means "match whatever
> the most recent successful match matched".  This isn't split. :)

Hmm, well then the documentation is quite confusing:

  Note that $thiscolumn reports the column number before any whitespace
  that might be skipped before reading a token. Hence if you wish to know
  where a token started (and ended) use something like this:

             rule: token1 token2 startcol token3 endcol token4
                             { print "token3: columns $item[3] to $item[5]"; }

             startcol: // { $thiscolumn }    # NEED THE // TO STEP PAST TOKEN SEP
             endcol:      { $prevcolumn }

My // is just Damian's startcol "inlined".

-Aaron