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Re: [augeas-devel] shellvars - regex parsing help



On Thu, 2010-01-14 at 12:03 -0500, Adam Stokes wrote:
> > > current shellvars comment:
> > >   let key_re = /[A-Za-z0-9_]+(\[[0-9]+\])?/ - "unset" - "export"
> > >   let eq = Util.del_str "="
> > >   let empty   = Util.empty
> > >   let comment       = 
> > >     let line_re     = /(#[^ \t][^\n]*)?/ - (key_re . "=" . /.*/) in
> > >     [ label "#comment" . empty . store line_re . del /\n/ "\n" ]
> > > 
> >
> 
> Here is my latest attempt
> 
>    let comment     =
>       let line_re = /([^ \t\n].*[^ \t\n]|[^ \t\n])/ - /([ \t]key_re . [ \t]*=[ \t]*.*[ \t\n])/ in
>       [ label "#comment" . del /#[ \t]*/ "# " . store line_re . del /\n/ "\n" ]

The expression after the '-' is not right: you have
        /([ \t]key_re . [ \t]*=[ \t]*.*[ \t\n])/

That's one literal regexp; you're missing a bunch of '/' to end/start
regular expression literals.

I think what you mean is
        /[ \t]*/ . key_re . /[ \t]*=[ \t]*.*/
        
David




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