PATCH: catch some more common regexps and if/unless expressions

Gavin Sinclair gsinclair at soyabean.com.au
Thu Sep 18 15:07:46 EDT 2003


On Thursday, September 18, 2003, 1:30:26 PM, Doug wrote:


>> Given any thought to using the \v modifier?

> <snip>

> I've never really found it very useful. It makes the simple cases a
> little 'neater' but not really any easier to read.

> \v$%(deferr|defout|stderr|stdin|stdout)>

> $\%(deferr\|defout\|stderr\|stdin\|stdout\)\>


> As for the more convoluted cases, is this:

> \v\w@<!%(\?%(\\M-\\C-|\\C-\\M-|\\M-\\c|\\c\\M-|\\c|\\C-|\\M-)=%(\\\o{3}|\\x\x{2}|\\=\S))

> really any easier to read than this:

> \w\@<!\%(?\%(\\M-\\C-\|\\C-\\M-\|\\M-\\c\|\\c\\M-\|\\c\|\\C-\|\\M-\)\=\%(\\\o\{3}\|\\x\x\{2}\|\\\=\S\)\)


Yes, it is.  Perhaps not by much, but I think it's hard to argue for
their equivalence.

If your point is that I have no idea what either of them mean, then
you are perfectly correct!

Gavin



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