Now that we don't need '\0'-termination on the data, this is possible.
Moved QByteArray's tests to tst_QByteArrayApiSymmetry and added some
more test-cases.
[ChangeLog][QtCore][QByteArrayView] Added numeric parsing methods.
Change-Id: Ic0df91ecfe5dbf6f008d344dd0464d7927f32273
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
When trying to fix 0-length matches at the end of a QString,
be83ff65c4 actually introduced a
regression due to how lastIndexOf interprets its `from` parameter.
The "established" (=legacy) interpretation of a negative `from` is that
it is supposed to indicate that we want the last match at offset `from +
size()`. With the default from of -1, that means we want a match
starting at most at position `size() - 1` inclusive, i.e. *at* the last
position in the string. The aforementioned commit changed that, by
allowing a match at position `size()` instead, and this behavioral
change broke code.
The problem the commit tried to fix was that empty matches *are* allowed
to happen at position size(): the last match of regexp // inside the
string "test" is indeed at position 4 (the regexp matches 5 times).
Changing the meaning of negative from to include that last position (in
general: to include position `from+size()+1` as the last valid matching
position, in case of a negative `from`) has unfortunately broken client
code. Therefore, we need to revert it. This patch does that, adapting
the tests as necessary (drive-by: a broken #undef is removed).
Reverting the patch however is not sufficient. What we are facing here
is an historical API mistake that forces the default `from` (-1) to
*skip* the truly last possible match; the mistake is that thre is simply
no way to pass a negative `from` and obtain that match. This means that
the revert will now cause code like this:
str.lastIndexOf(QRE("")); // `from` defaulted to -1
NOT to return str.size(), which is counter-intuitive and wrong. Other
APIs expose this inconsistency: for instance, using
QRegularExpressionIterator would actually yield a last match at position
str.size(). Similarly, using QString::count would return `str.size()+1`.
Note that, in general, it's still possible for clients to call
str.lastIndexOf(~~~, str.size())
to get the "truly last" match.
This patch also tries to fix this case ("have our cake and eat it").
First and foremost, a couple of bugs in QByteArray and QString code are
fixed (when dealing with 0-length needles).
Second, a lastIndexOf overload is added. One overload is the "legacy"
one, that will honor the pre-existing semantics of negative `from`. The
new overload does NOT take a `from` parameter at all, and will actually
match from the truly end (by simply calling `lastIndexOf(~~~, size())`
internally).
These overloads are offered for all the existing lastIndexOf()
overloads, not only the ones taking QRE.
This means that code simply using `lastIndexOf` without any `from`
parameter get the "correct" behavior for 0-length matches, and code that
specifies one gets the legacy behavior. Matches of length > 0 are not
affected anyways, as they can't match at position size().
[ChangeLog][Important Behavior Changes] A regression in the behavior of
the lastIndexOf() function on text-related containers and views
(QString, QStringView, QByteArray, QByteArrayView, QLatin1String) has
been fixed, and the behavior made consistent and more in line with
user expectations. When lastIndexOf() is invoked with a negative `from`
position, the last match has now to start at the last character in the
container/view (before, it was at the position *past* the last
character). This makes a difference when using lastIndexOf() with a
needle that has 0 length (for instance an empty string, a regular
expression that can match 0 characters, and so on); any other case is
unaffected. To retrieve the "truly last" match, one can pass a
positive `from` offset to lastIndexOf() (basically, pass `size()` as the
`from` parameter). To make calls such as `text.lastIndexOf(~~~);`, that
do not pass any `from` parameter, behave properly, a new lastIndexOf()
overload has been added to all the text containers/views. This overload
does not take a `from` parameter at all, and will search starting from
one character past the end of the text, therefore returning a correct
result when used with needles that may yield 0-length matches. Client
code may need to be recompiled in order to use this new overload.
Conversely, client code that needs to skip the "truly last" match now
needs to pass -1 as the `from` parameter instead of relying on the
default.
Change-Id: I5e92bdcf1a57c2c3cca97b6adccf0883d00a92e5
Fixes: QTBUG-94215
Pick-to: 6.2
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Unlike simplified(), it just moves the end-points, without needing to
modify contents, so it makes sense (as for QStringView and
QLatin1String) to provide it. Moved QByteArray's trimmed() tests to
tst_QByteArrayApiSymmetry so that QBAV can now share them.
[ChangeLog][QtCore][QByteArrayView] Added trimmed().
Change-Id: Ifd7a752adb5f3d3e2ad0aa8220efa7e7d2d39baa
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
This patch introduces some test improvements to check the calls of
different methods on an empty default-constructed string.
Apart from that, many other tests are added to extend code coverage.
Task-number: QTBUG-91736
Pick-to: 6.2 6.1
Change-Id: If86ef3d8611a678798b1bcc60a1a4f5598fd2179
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
This patch fixed two bugs in indexOf/lastIndexOf:
1. The lastIndexOf(char, qsizetype) overload was crashing with an empty
QByteArray. It was unconditionally calling lastIndexOfCharHelper()
which assumes that this QBA is not empty. An explicit check for
the empty case is added.
2. The indexOf(QByteArray, qsizetype) overload was behaving incorrectly
while searching for an empty QByteArray. In this case it
unconditionally returned its second parameter (from). However, from
can be negative, or even exceed the size of this QByteArray. This
patch handles this cases properly.
As a drive-by: this patch adjusts the QByteArray::indexOf(char, qsizetype)
and QByteArray::lastIndexOf(char, qsizetype) overloads to match with the
QByteArrayView implementation. This is done to have similar code paths
in both cases and avoid tricky bugs in future.
Ideally we had to adjust the QByteArrayView implementation, but it's
fully inline, so can't be changed without breaking BC.
Task-number: QTBUG-91736
Pick-to: 6.2 6.1
Change-Id: Iaef2fdc5b99cce6aa342cca2d17544a1ad7ca677
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Remove the qmake project files for most of Qt.
Leave the qmake project files for examples, because we still test those
in the CI to ensure qmake does not regress.
Also leave the qmake project files for utils and other minor parts that
lack CMake project files.
Task-number: QTBUG-88742
Change-Id: I6cdf059e6204816f617f9624f3ea9822703f73cc
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Modify special case locations to use the new API as well.
Clean up some stale .prev files that are not needed anymore.
Clean up some project files that are not used anymore.
Task-number: QTBUG-86815
Change-Id: I9947da921f98686023c6bb053dfcc101851276b5
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
The issue has been introduced when refactoring QByteArray::count
implementation (see 631127126c).
Because the last argument of QByteArrayMatcher::indexIn() method
has a defult value, it has been compiling without issues, but was being
called with incorrect size parameter. Fixed it to pass the length of the
input data correctly.
Change-Id: Ic9c2f33733131ec17276aa889f2d7ea40ec79b01
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Created tst_QByteArrayApiSymmetry test for the common APIs of
QByteArray and QByteArrayView. Moved the tests for startsWith(),
endsWith(), indexOf(), lastIndexOf(), compare(), from tst_QByteArray
to tst_QByteArrayApiSymmetry and adapted them to check different
QByteArray/QByteArrayView combinations. Added tests for first(),
last(), sliced(), chopped(), chop(), truncate(), count(), contains()
(test inputs are taken from corresponding tst_QStringApiSymmetry
tests).
Task-number: QTBUG-84321
Change-Id: I4e712b1692e3c1271d51ddcda6c9eb8bb01e11d4
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
