On 2013-11-23 16:07, ph10 wrote:
On Sat, 23 Nov 2013, Zoltán Herczeg wrote:
currently PCRE character tables can only hold lowercase / flipped case
and various type bits for the >first 256 characters. Supporting the
whole 64K character set in 16 bit mode would take 409600 bytes >of
memory, which is less than half megabyte. Today, even smartphones can
afford that cost. The trade->of would be that the same tables could not
be used in 8/16/32 bit modes anymore, since the >lowercase / flipped
case tables would depend on the natural character length. Hence a table
with only >256 characters would be bigger in 16/32 bit mode than now.
(Note: the table size would always be >divisible by 256. This would
allow not to change anything in 8 bit mode, but we could also support
>character sets which does not have 64K characters in 16 bit and
especially in 32 bit mode, where we >have 4096M characters).
I am sure we cannot do this for 8.34 (this is not an easy task), but if
this is important for many >people, we might think about this later.
I think it will be useful.
Thanks.
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