[Boost-users] Boost::Spirit - Just enough to match a term?

From: Eric Hill (eric_at_[hidden])
Date: 2006-07-12 11:11:21

I'm past the initial learning curve with Spirit, but would like to see how  
the pros handle this problem.

I have the following simple command structure:

show queues
show users
show processes
start process foo
queue user bar to process foo
...etc

I would like to parse these commands with Spirit.  Easy enough.  Since  
this is being entered from a keyboard, it would be nice to short-circuit  
the parser so you only have to enter enough of the command for the parser  
to reliably figure out what you want.

e.g. "sh qu" would parse as "show queues", and "st pr foo" would parse as  
"start process foo".

I can easily model the whole "show queues" command word with:

str_p("show") >> str_p("queues")

But how do I match "just enough" instead of "whole word" without doing it  
manually?

TIA,
Eric