[Bug translator/4846] New: change $1..$n to character pasting

["fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

At this time, $1 substitution works by parsing a command line argument as a
number and pasting that number token into the script.  @1 turns it into a string
literal token.  There is no way to paste plain old characters, to do this:
   probe syscall.$1 { }
So, let's change things:

@1 would be redefined/clarified to paste a double-quoted (and internally
\-escaped) sequence of characters; $1 would be redefined to paste the command
line arguments verbatim.  In each case, these would paste characters right
into the lexer input stream.  (Numeric parsing for $N would be left to the
ordinary tokenizer.)

Existing scripts that use $1/@1 should actually be unaffected by this.

-- 
           Summary: change $1..$n to character pasting
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: fche at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=4846

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