From: Joel VanderWerf <vjoel@...>
Date: 2002-04-04T06:51:16+09:00
Subject: Re: Ruby, python, perl, ...

Yohanes Santoso wrote:
> 
> Chris <chris@cmb-enterprises.com> writes:
> 
> > In article <3CAB5620.F1D693C1@path.berkeley.edu>,
> >  Joel VanderWerf <vjoel@PATH.Berkeley.EDU> wrote:
> >
> > > Chris wrote:
> > >
> > > > Ah, but the real magic of """ is something like:
> > > >
> > > > >>> foo = """<a href="bar.html">here's a single quote mark</a>"""
> > > > >>> foo
> > > > "<a href=\"bar.html\">here's a single quote mark</a>"
> > >
> > > What about
> > >
> > > irb(main):001:0> foo = %{<a href="bar.html">here's a single quote
> > > mark</a>}
> > > "<a href=\"bar.html\">here's a single quote mark</a>"
> >
> > You'd still have to escape out any } that might actually occur in the
> > string.

Only if the { } are not balanced.

> foo = %q# quotation marker can be any non-alphanumeric char #
> foo2 = %Q@ foo=#{foo} @

I always forget about this. What's really cool is that you can use
newlines:

irb(main):013:0> foo = %
irb(main):014:0" grabs the whole line
irb(main):015:0>
"grabs the whole line"

and for single quoting you can use %q instead of %, and you can use %x
for shell escape:

ls = %x
ls

puts ls # ==> string with ls output