Thanks for the answers!
I haven't got much experience yet of std::string so I thought the grass
was greener over there. But sure, functions like split() and trimmed() I
use regularly, and they indeed seem to be lacking in std::string.
So sorry QString about that brief moment of infidelity, won't happen
again :-)
On 2019-10-18 03:49, Sze Howe Koh wrote:
On Fri, 18 Oct 2019 at 08:43, Alexander Nassian
<[email protected]> wrote:
C++ hasn‘t even proper Unicode handling integrated. std::string is a mess in my
opinion.
Beste Grüße / Best regards,
Alexander Nassian
Am 18.10.2019 um 02:30 schrieb Henry Skoglund <[email protected]>:
Hi, while writing lots of QString string fiddling code (keyboard macro
utility) I feel something tugging at my sleeve:
the upcoming C++20, looking at std::format(), it seems really handy, e.g.:
std::string s = std::format("String '{}' has {} characters\n", string,
string.length());
// for a German flavor you can use arg #
std::string s = std::format("{1} Zeichen lang ist die Zeichenkette '{0}'\n",
string, string.length());
// lots of formatting options with a ':' inside the curlies
std::string s = std::format("{0:b} {0:d} {0:x}", 42); // s == "101010 42 2a"
Using QString::arg() works fine but it's getting harder to ignore all the new
C++ stuff and C++20 looks to be one of the bigger additions to the language
since C++11.
Perhaps the time has come to think about a retirement plan for QString?
Rgrds Henry
I agree with Alexander; QString is far more pleasant to use than
std::string for many everyday tasks.
Aside from Unicode support, std::string lacks (clean) equivalents of
the following functions which I use regularly:
- QString::startsWith(), QString::endsWith()
- QString::split(), QString::section()
- QString::simplified(), QString::trimmed()
- QString::contains(), QString::indexOf() by regex
- QString::replace(), QString::remove() by substring or by regex
I refuse to ditch QString for std::string until Unicode and the above
functionality are offered in std::string, at the very least.
Here are more functions that are lacking in std::string. I personally
don't use them much, but they look pretty handy if the right project
comes along:
- QString::right()
- QString::localeAwareCompare()
- QString::compare() with Qt::CaseInsensitive
- QString::chop(), QString::chopped()
- QString::leftJustified(), QString::rightJustified()
Regards,
Sze-Howe
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