> Anyway, searching the database seems to turn up many false positives. I
> am quite familiar with regular expressions from Perl hacking and
> grepping, so I'm pretty sure I'm not making a mistake. Using
> bbdb-search-name (or bbdb or b in the BBDB buffer) returns the correct
> match and at least one false positive, every time. For example,
> searching for Jo* returns (minus the domain names, which are either
> otago dot ac dot nz or gmail dot com):
> -----------------------------------------------------
> Jeremiah Deng
> mail: jeremiah.deng@
> Jenny Rock
> mail: jennifer.rock@
> John Williams
> mail: john.williams@, johnfrombluff@
> ----------------------------------------------------
Those are not false positives. You want to search for Jo followed by whatever,
but you are actually searching for J followed by zero or more o's so everything
with a J matches.
>From the Emacs manual (C-h i) on regular expressions (M regex):
3.4.1 The Match-zero-or-more Operator ('*')
-------------------------------------------
This operator repeats the smallest possible preceding regular expression
as many times as necessary (including zero) to match the pattern. '*'
represents this operator. For example, 'o*' matches any string made up
of zero or more 'o's. Since this operator operates on the smallest
preceding regular expression, 'fo*' has a repeating 'o', not a repeating
'fo'. So, 'fo*' matches 'f', 'fo', 'foo', and so on.
--
Dave Goldberg
david.goldbe...@verizon.net
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