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author | Ahmad Samir <a.samirh78@gmail.com> | 2020-12-27 15:27:42 +0200 |
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committer | Giuseppe D'Angelo <giuseppe.dangelo@kdab.com> | 2020-12-28 14:35:39 +0000 |
commit | 824c726340ed8da0393aa97016682bcfd8c8bdc3 (patch) | |
tree | 7ccf4a67caaef5b1fb02bded0f14bfe7758bff33 /src/corelib/text/qregularexpression.cpp | |
parent | 24cf218b3985941887a7f0dcfc249e3367768700 (diff) |
QRegularExpression: mention raw string literal in the docs
Raw string literals (since C++11 according to [1]), make writing/reading
regex patterns easier, since one can just use e.g. "\w\d" without having
to escape those backslashes e.g. "\\w\\d"; this is especially useful with
longer/more complex regex patterns.
[1] https://en.cppreference.com/w/cpp/language/string_literal
Pick-to: 5.15 6.0
Change-Id: I119f9566d27222b915af931ee7e13e064baede61
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Diffstat (limited to 'src/corelib/text/qregularexpression.cpp')
-rw-r--r-- | src/corelib/text/qregularexpression.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/corelib/text/qregularexpression.cpp b/src/corelib/text/qregularexpression.cpp index fd0e10dfe6..1127b77831 100644 --- a/src/corelib/text/qregularexpression.cpp +++ b/src/corelib/text/qregularexpression.cpp @@ -140,6 +140,14 @@ QT_BEGIN_NAMESPACE \snippet code/src_corelib_text_qregularexpression.cpp 2 + Alternatively, you can use a + \l {https://en.cppreference.com/w/cpp/language/string_literal} {raw string literal}, + in which case you don't need to escape backslashes in the pattern, all characters + between \c {R"(...)"} are considered raw characters. As you can see in the following + example, this simplifies writing patterns: + + \snippet code/src_corelib_text_qregularexpression.cpp 35 + The pattern() function returns the pattern that is currently set for a QRegularExpression object: |