bug#3001: 23.0.92; doc for regexp construct (?:

[Stefan Monnier <monnier@IRO.UMontreal.CA>]

> But at least some explanation of the use of the word "shy" is in
> order, if only for mnemonic purposes.  What were you thinking? ;-)

I really don't know what I was thinking, sorry, nor what "they"
were thinking.  I could guess at an rationalisation; e.g. "yo' mama's
so shy she doesn't even dare to get a number".

> (Perhaps it is translated from some other language, where it has more
> than one meaning?)

My attempt of humor is indeed translated from an unknown language where
it sounds even less funny.
 
> More importantly, this construct does not appear to be indexed in the
> manual.  It should be indexed under "(: in regexp", as well as under
> "regexp non-capturing group" and "regexp unnumbered group" - and of
> course "regexp shy group", if that term is kept.
 
It is indexed under "shy group, in regexp".  I don't know if chars like
"(?:" can be used in a Texinfo index without first sacrificing a few
virgins.  I'm not sure if it's likely that someone will look for
"non-capturing" or "unnumbered" groups (i.e. would someone look for the
syntax to use for that feature, rather than look for the feature
associated to that syntax?).


        Stefan