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Replace non ascii chars with ? in xterm title, and limit to 511 chars

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Closes #839
This commit is contained in:
Maxime Coste 2016-10-04 20:13:15 +01:00
parent d2a324d3c4
commit f81b8c137b
1 changed files with 14 additions and 4 deletions
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18
src/ncurses_ui.cc
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@ -409,11 +409,21 @@ void NCursesUI::draw_status(const DisplayLine& status_line,
if (m_set_title)
{
String title = "\033]2;";
constexpr char suffix[] = " - Kakoune\007";
char buf[4 + 511 + 2] = "\033]2;";
// Fill title escape sequence buffer, removing non ascii characters
auto buf_it = &buf[4], buf_end = &buf[4 + 511 - (sizeof(suffix) - 2)];
for (auto& atom : mode_line)
title += atom.content();
title += " - Kakoune\007";
fputs(title.c_str(), stdout);
{
const auto str = atom.content();
for (auto it = str.begin(), end = str.end();
it != end and buf_it != buf_end; utf8::to_next(it, end))
*buf_it++ = (*it >= 0x20 and *it <= 0x7e) ? *it : '?';
}
for (auto c : suffix)
*buf_it++ = c;
fputs(buf, stdout);
fflush(stdout);
}