% operator -- did Python or C++/boost come first?

[sismex01 at hebmex.com]

> From: roy at panix.com [mailto:roy at panix.com] 
> Sent: Lunes, 14 de Julio de 2003 03:28 p.m.
> 
> Up until recently, Python was the only language I'd ever seen that
> used the % operator for string replacement.  Today, I was perusing the
> C++ Boost libraries, and discoverd that boost::format uses a very
> similar syntax.  The following lines print the same thing in Python
> and C++, respectively.
> 
> print "int->%i, string->%s" % (42, "wugga, wugga")
> cout << boost::format ("int->%i, string->%s\n") % 42 % "wugga, wugga";
> 
> The question is, which came first?  Did boost adapt the Python syntax,
> or the other way around, or did they both evolve in parallel?  I'm not
> talking about the use of % in the C/printf style format specifier, but
> the use of % as an operator to connect the format specifier with the
> data to be formatted.
>

I don't think anybody copied anybody's idea, rather, it's quite
logical to think up "%" as a string-formatting operator, because
of it's ties with it's use in printf() style format strings.

-gustavo


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