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Prevent fish_title output from triggering a bel

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fish outputs the result of fish_title inside an escape sequence, which
happens to be terminated by \a (BEL). It may happen that the initial
output is interrupted; fish then emits the closing BEL and that makes an
annoying beep. Output the fish_title all at once, even if a signal is
delivered (so we don't get "stuck inside" the sequence).

This is related to #8628 in that it's a "torn escape sequence."
This commit is contained in:
ridiculousfish 2022-02-02 10:42:30 -08:00
parent 1bdd629326
commit 7f31acbf9b
1 changed files with 5 additions and 3 deletions
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8
src/reader.cpp
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@ -1293,11 +1293,13 @@ void reader_write_title(const wcstring &cmd, parser_t &parser, bool reset_cursor
wcstring_list_t lst;
(void)exec_subshell(fish_title_command, parser, lst, false /* ignore exit status */);
if (!lst.empty()) {
std::fputws(L"\x1B]0;", stdout);
wcstring title_line = L"\x1B]0;";
for (const auto &i : lst) {
std::fputws(i.c_str(), stdout);
title_line += i;
}
ignore_result(write(STDOUT_FILENO, "\a", 1));
title_line += L"\a";
std::string narrow = wcs2string(title_line);
ignore_result(write_loop(STDOUT_FILENO, narrow.data(), narrow.size()));
}
outputter_t::stdoutput().set_color(rgb_color_t::reset(), rgb_color_t::reset());