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Postings from February 2015
Karl Williamson <public@khwilliamson.com> wrote
on Sat, 07 Feb 2015 22:51:58 MST:
>As discussed many months ago, I am implementing \b{...} to allow more
>boundary types than plain \b.
>The three types that will be in 5.22 are
> * \b{gcb} grapheme cluster break. \X is defined as .+?\b{gcb}
> * \b{sb} sentence break. Is true if Unicode thinks this is
> a boundary between two sentences. It does a decent
> job of this, but it thinks that "Mr. Jones" is 2
> sentences.
> * \b{wb} word break. Is true if Unicode thinks this is boundary
> between two words.
[ . . . ]
> It has now occurred to me that a lot of existing \b uses really would
> work better if they were \b{wb}. And that can be accomplished without
> having to change every occurrence, by instead having a pattern
> modifier flag, which could be in a 'use re "/w"' which says treat
> plain \b as \b{wb} in its scope.
> I don't see any real use for pretending that \b is any of the other
> break types, so I think this is the only modifier affecting \b that
> would ever make sense.
> I'm not sure how I feel about this, but I thought I should throw it
> out there to garner feedback.
That all sounds quite good to me, Karl.
--tom
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