Re: [jamboost] Re: [BBv2] How to do pattern matching inside files?

From: Rene Rivera (grafik.list_at_[hidden])
Date: 2005-08-31 10:54:10

Joao Abecasis wrote:
> Another way to state the problem is how to read the contents of a file 
> with current bjam + Boost.Build2?
> 
> Is there currently a way to do this?
> 
> Something grep-like...
> 
> Handling the regular expressions and iterating over files (or even 
> finding them using GLOB) seems to be the easy part, what I'm really 
> missing is how to open those files and read their contents.
> 
> Any pointers?

I though someone had worked on a CAT builtin that would read in a file, 
but I don't see it now. One possibility is to use the SHELL builtin to 
run "cat [file]" (or whatever the platform equivalent is) to get the text.

The other way is to do what the --help option does. It hijacks the 
header scanning to scan/read the *.jam files in. Take a look at 
v2/utils/doc.jam for how that's done.

Of course a contribution of a "CAT" builtin would be ideal ;-) (I might 
do this myself next week if no one beats me to it.)

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