question about speed of sequential string replacement vs regex or
Eli the Bearded
* at eli.users.panix.com
Wed Sep 28 15:08:21 EDT 2011
In comp.lang.perl.misc, Willem <willem at toad.stack.nl> wrote:
> In Perl, it would be applicable. You see, in Perl, you can call a function
> in the replacement of the regex substitution, which can then look up the
> html entity and return the wanted unicode literal.
A function? I'd use a hash.
> I think you can do that in some other languages as well.
Hash / array type substitutions indexed by $1 (or language equivilent)
are probably easy to implement in many languages.
for really fast, write code to generate a C lexer to do it
More information about the Python-list