Discussed during Qt Contributor Summit 2017. We concluded that we don't
want to make these functions public, as they do not follow Qt coding
style API. Specifically,
qStartsWith(a, b)
is not easily understood which argument is the needle and which argument
is the haystack (same problem memcpy() has). Compare that to
a.startsWith(b)
which can clearly be read in English as a subject-verb-object sentence.
This commit removes the unit tests that called compare().
Discussed-on: http://lists.qt-project.org/pipermail/development/2017-October/031060.html
Change-Id: Icaa86fc7b54d4b368c0efffd14ee6205eb9043fb
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
... using the same qt_trimmed(), qTrimmed(), Q..::trimmed() split we've
been using for all other out-of-line string-view member functions to
avoid forcing string-view objects onto the stack for the passing of 'this'.
In the test, had to fix nullness not being propagated from a QByteArray
to the QLatin1String constructed from it. Probably worth fixing in
QLatin1String(QByteArray), too.
[ChangeLog][QtCore] Added qTrimmed() free functions.
[ChangeLog][QtCore][QLatin1String] Added trimmed() function.
Change-Id: I73c18ef87e203f30f7552c10dd5c84223bcfae0e
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
All good (now).
Change-Id: I666773856a239826e646398a943e7df30bd81671
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
For transformations, regardless of whether they're currently
overloaded on rvalue-this or not, check the results of calls to const
lvalues as well as mutable rvalues.
Use the new mixed-type QCOMPARE more.
Change-Id: Ibaa436cd88b40e5c0823c3bbe5b04a9964e7e987
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Less code duplication, since truncate() is the action version of
left().
This is done in preparation of adding more actions for the string
transformations we have.
Change-Id: I55027b5143ad3349d46091ac1cc3d24a9707caee
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
All good.
Can't check QByteArray::startsWith(), as it is lacking the
Qt::CaseSensitivity parameter.
Change-Id: I7f2379e520617c14514fc66d8fb3413cfb7c9147
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
qstrcmp sorts null strings before empty ones, while the Qt string
classes consider them equal.
The qt_compare_strings() overload for QLatin1String was using
qstrcmp(), but is supposed to implement the semantics that Qt string
classes use, so we need to add an extra check.
Was uncovered by tests for QLatin1String::startsWith(), but added a
new test for qCompareStrings() now, which is a bit more complicated
than desired, due to the lack of QUtf8String.
Change-Id: I0493c4491df928a68861a1bc7f0962f1c870a416
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
We have two functions to get a substring without doing some
calculations involving size():
- mid(p): mid(p, size() - p)
- right(n) : mid(size() - n, n)
(left does not involve size(), so isn't in that set). What was missing
was a name for
- f(n): mid(0, size() - n)
As an action, it's called chop(), so call the transformation version
chopped().
I made chopped(n), n < 0 or n > size(), undefined, because QString(Ref)
::left() is broken[1], while the QByteArray implementation is not. This
is the only way to get consistent behavior among the three classes.
I's also the correct thing to do.
[1] instead of returning the empty string for negative indexes, it
returns the whole string.
[ChangeLog][QtCore][QString/QStringRef/QByteArray] Added chopped(n), a
const version of chop(n).
Change-Id: I6c2c5b16e0060fa924ced5860f21f2d0f23bd023
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Like the qt_compare_strings()/qCompareStrings() split, distinguish
between the internal and exported functions.
Because of the circular dependency between qstring.h and qvector.h,
the inline toUcs4() function has to be in qvector.h.
At some point, we need to refactor the headers so qvector.h is lower
in the dependency chain than qstring.h. It's not the first time this
bites.
Change-Id: Ief9f3bd92c83cdd1f31c51c700f42e146916eefd
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
All good.
Change-Id: Id791a04fd5e2c9bc7f54660eaaa95d6db61a5674
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Change-Id: If1d2cf175d51b3c02881e21937b0a2d33b78aadd
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Remove most of the std::equal() tests that were used to determine
equality in pre-relational-operator-times again.
Amends a1421e4787.
Change-Id: Iff64808f5ac60861caee899d594b512b58046636
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Systematic testing in tst_QStringApiSymmetry revealed a bug in
QStringRef::toLatin1(): a null input did not result in a null output,
but an empty one. This is fixed, for consistency with
QString::toLatin1(), and QString(Ref)::toUtf8(), which behaved
correctly already.
The same bug was found in QString(Ref)::toLocal8Bit(), which is
particularly hideous, as it's documented to fall back to toLatin1(),
which preserves null inputs. Fixed, too.
[ChangeLog][QtCore][QString] toLocal8Bit() now preserves nullness of
the input QString (outputs null QByteArray).
[ChangeLog][QtCore][QStringRef] toLocal8Bit() and toLatin1() now
preserve nullness of the input QStringRef (output null QByteArrays).
Change-Id: I7026211922c287e03d07e89edbad2987aa646e51
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Use the new qtConfig macro in all pro/pri files.
This required adding some feature entries, and adding
{private,public}Feature to every referenced already existing entry.
Change-Id: I164214dad1154df6ad84e86d99ed14994ef97cf4
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
The implementation used the QString::compare_helper(QChar*, int, char*, int)
overload, which, however, interprets the rhs as a UTF-8 sequence, not as
Latin-1.
Fix by using the (QChar*, int, QLatin1String) overload.
Extend the test to cover this case, too.
Change-Id: I59b26d63d0caec036b80ef8818c75d0cebe519d2
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
As in 032efc2cb2, which added the
API-symmetry test, define the missing relational operators
locally in the test harness until they are fixed in the library.
Change-Id: Ic2688e6b6b3e028a9c29f1a5eb01058375ef3fe9
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Instead of relying on the QString relational operators to
implicitly convert the QChar to a QString, add relational
operator overloads that compare the QChar without first
turning it into a QString, saving one memory allocation
per comparison, and allowing to mark the operation as
nothrow.
Consequently, in tst_QStringBinOps, verify now that all
relational operations are noexcept.
The added overloads make QChar ==/!= int comparisons
ambiguous. De-ambiguate by providing a constrained
template that matches int and nothing but int (otherwise,
the QChar and the int versions would compete for a
QChar::SpecialCharacter argument, and end up creating
new ambiguities). This solution may not be perfect, but
it can be easily extended should more ambiguities crop up.
The existing overload deals with all patterns found in
qtbase.
Change-Id: I4156d918e9b9134c1da684b8b69e0ee526ad24e3
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
For QChar <> QStringRef, equality and inequality were already provided
(via QChar -> QString implicit conversions, to be fixed in a separate
patch). Missing were the less/greater than (or equal) operators.
Added.
For QChar <> QLatin1String, all relational operators were missing.
Added, too.
[ChangeLog][QtCore][QChar] Added missing operator{<,>,<=,>=}
comparing against QLatin1String and QStringRef.
[ChangeLog][QtCore][QChar] Added missing operator{==,!=}
comparing against QLatin1String.
Change-Id: I9941fe7e7281ea560b3bd5970cb9651ffadc1495
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Equality and inequality were already provided. Missing were the
less/greater than (or equal) operators.
Added.
Moved existing functions around and more similar to the new ones,
to make the whole code section a bit more manageable.
[ChangeLog][QtCore][QStringRef] Added missing operator{<,>,<=,>=}
comparing against QLatin1String and QString.
Change-Id: Idb3c4fa9b38421637987226f3cc1b77f5d4a6309
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
At the moment, only checks the relational operators, where
it already found some which do not compile. In order to
simplify the test, the missing operators are supplied by
the test harness until they are fixed in the library.
Change-Id: Ief5daefa68f15de5f8e559c9378ed83b715b69ee
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
