How is std.regex.replaceAllInto more efficient?
Marc Schütz via Digitalmars-d
digitalmars-d at puremagic.com
Sat Oct 17 04:16:28 PDT 2015
On Saturday, 17 October 2015 at 10:54:19 UTC, Dmitry Olshansky
wrote:
> On 17-Oct-2015 13:06, Shriramana Sharma wrote:
>> Dmitry Olshansky wrote:
>>
>>> Feel free to improve on the examples, I'd gladly pull such
>>> patches.
>>
>> How about this, using the "comifying" regex from the
>> replaceAll example:
>>
>> auto re = ctRegex!(`(?<=\d)(?=(\d\d\d)+\b)`, "g");
>> auto sink = appender!(char [])();
>> foreach (line; stdin.byLine())
>> {
>> sink.clear();
>> replaceAllInto(sink, line, re, ",");
>> writeln(sink.data());
>> }
>>
>
> My problem with it is writeln/byLine b/c it can't be
> unittested. Documented unit-tests as examples are gold.
>
You can prefix it with `version(StdDdoc)`, then it will only
appear in the documentation. It won't be really tested of course,
but the compiler will at least do syntax checking on it, I guess.
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