Re: [jamboost] Re: [bjam] implementation of builtin CAT

From: Rob Stewart (rob_stewart_lists_at_[hidden])
Date: 2005-09-04 12:29:47

>>Rene Rivera wrote:

PMFJI, but I tried replying to an earlier message and used the 
wrong e-mail address, so I'm a little late to the party. Still, 
maybe I can offer something.

>>>How about something like:
>>>
>>>rule READ ( file : first-and-last-line * : regexp ? )
>>> # file, path to file
>>> # first-and-last-line, range of lines to read, default ( 0 1 )
>>> # regexp, optional regex to apply to each line before it is returned
>>> #
>>> # returns: ( first-line-read last-line-read strings * )

Wouldn't something more along the *nix philosophy be good? That 
is, if you can support pipelining, a set of smaller rules than 
can be chained somehow would provide more flexibility.

Thus, you'd want rules like HEAD, TAIL, GREP, etc. Those might 
be harder to manage from within jam rules, but they would afford 
great flexibility and power.

-- 
Rob