#2490 Regexp to simulate DOTALL mode does not work

[Georger Araujo]

This is on SciTE 5.5.8 on Windows 11 24H2 with find.replace.regexp.cpp11=1.

Regular expression first[\d\D]*second does not match the test string

first line
second line

I suppose it should work, since SciTE uses ECMAScript grammar (as per [1])? I tested it with [2], and it works. I want to use it as a workaround to simulate DOTALL mode.

[1] https://sourceforge.net/p/scintilla/code/ci/default/tree/src/Document.cxx#l3402
[2] https://regex101.com/r/DHihB3/1

[Neil Hodgson]

From the comment in MatchOnLines:

    // MSVC and libc++ have problems with ^ and $ matching line ends inside a range.
    // CRLF line ends are also a problem as ^ and $ only treat LF as a line end.
    // The std::regex::multiline option was added to C++17 to improve behaviour but
    // has not been implemented by compiler runtimes with MSVC always in multiline
    // mode and libc++ and libstdc++ always in single-line mode.
    // If multiline regex worked well then the line by line iteration could be removed
    // for the forwards case and replaced with the following:

You can experiment with multi-line regular expressions by defining REGEX_MULTILINE when building.

[Georger Araujo]

I understand. Please close the ticket.

[Georger Araujo]

It worked with w64devkit 2.4.0 [1], which ships gcc 15.2.0.

[1] https://github.com/skeeto/w64devkit