This is C++ code. I know that QRegularExpression does support 's' flag.
I was asking about javascript...
On 11/26/2021 1:24 AM, ivan tkachenko wrote:
Hi,
On Thursday, November 25, 2021 11:47:19 PM MSK Alexander Dyagilev wrote:
I'm trying to:
var re = new RegExp('someregex', 's');
Getting error: SyntaxError: Invalid flags supplied to RegExp constructor.
At least in qtbase/src/corelib/text/qregularexpression.h[1] file there is a
QRegularExpression::DotMatchesEverythingOption enum constant. Which means it's
just a matter of checking for QV4 engine implementation of those flags. Here's
what in qv4regexp{_p.h,cpp} files[2][3], either in the struct RegExp : Base {}
declaration, or in flagsAsString() method:
bool global() const;
bool ignoreCase() const;
bool multiLine() const;
bool unicode() const;
bool sticky() const;
(little bit stripped down for convenience of the reader)
QString result;
if (flags & RegExp_Global)
result += 'g';
if (flags & RegExp_IgnoreCase)
result += 'i';
if (flags & RegExp_Multiline)
result += 'm';
if (flags & RegExp_Unicode)
result += 'u';
if (flags & RegExp_Sticky)
result += 'y';
return result;
If we compare that to the MDN docs[4], we can see that exactly two out of
seven flags are missing.
Can anything be done for '.' to match _any_ character?
Not practically, no. But you can contribute upstream, or in the meantime
create your own wrapper class in C++ that would #include Qt's private headers
or something.
[1]: https://code.woboq.org/qt5/qtbase/src/corelib/text/
qregularexpression.h.html#QRegularExpression::DotMatchesEverythingOption
[2]: https://code.woboq.org/qt5/qtdeclarative/src/qml/jsruntime/
qv4regexp_p.h.html
[3]: https://code.woboq.org/qt5/qtdeclarative/src/qml/jsruntime/
qv4regexp.cpp.html
[4]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/
Regular_Expressions#advanced_searching_with_flags
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