Bug 22776 – string literal printing fails on non-ASCII/non-printable chars

When dmd prints a string literal in an error message it doesn't handle non-trivial cases properly: ``` "before \0 after"; "\n"; ``` Error: declaration expected, not `"before "` Error: declaration expected, not `"\x0a"` It truncates at zero bytes and uses \x00 codes for everything non-printable, even when there are more readable escape sequences available (most commonly \n for \x0A). non-ASCII code units in wstrings and dstrings also get messed up in semantic errors: ``` pragma(msg, "\u1234"w.stringof); // "\x34\x12"w pragma(msg, "\u1234"d.stringof); // "\x34\x12"d ``` The lexer handles these correctly by emitting \u sequences instead of \x sequences.

@dkorpel created dlang/dmd pull request #13662 "Fix issue 22776 - string literal printing fails on non-ASCII/non-printable chars" fixing this issue: - Fix issue 22776 - string literal printing fails on non-ASCII/non-printable chars https://github.com/dlang/dmd/pull/13662

dlang/dmd pull request #13662 "Fix issue 22776 - string literal printing fails on non-ASCII/non-printable chars" was merged into master: - d4471395045078a943cfba00edc5efa0ed2aab52 by dkorpel: Fix issue 22776 - string literal printing fails on non-ASCII/non-printable chars https://github.com/dlang/dmd/pull/13662