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LibLine: Move search-related updates into do_cursor_left/right

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This way, arrow-left and arrow-right behave consistently with ctrl-b/ctrl-f.
This commit is contained in:
Nico Weber 2020-07-13 08:49:19 -04:00 • committed by Andreas Kling
parent dc62371439
commit b0384bb1bb
1 changed files with 34 additions and 34 deletions
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68
Libraries/LibLine/Editor.cpp
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@ -431,39 +431,42 @@ void Editor::handle_read_event()
enum Amount { Character, Word };
auto do_cursor_left = [&](Amount amount) {
if (m_cursor == 0)
return;
if (amount == Word) {
auto skipped_at_least_one_character = false;
for (;;) {
if (m_cursor == 0)
break;
if (skipped_at_least_one_character && isspace(m_buffer[m_cursor - 1])) // stop *after* a space, but only if it changes the position
break;
skipped_at_least_one_character = true;
--m_cursor;
}
} else {
--m_cursor;
}
if (m_cursor > 0) {
if (amount == Word) {
auto skipped_at_least_one_character = false;
for (;;) {
if (m_cursor == 0)
break;
if (skipped_at_least_one_character && isspace(m_buffer[m_cursor - 1])) // stop *after* a space, but only if it changes the position
break;
skipped_at_least_one_character = true;
--m_cursor;
}
} else {
--m_cursor;
}
}
m_inline_search_cursor = m_cursor;
};
auto do_cursor_right = [&](Amount amount) {
if (m_cursor >= m_buffer.size())
return;
if (amount == Word) {
// Temporarily put a space at the end of our buffer,
// doing this greatly simplifies the logic below.
m_buffer.append(' ');
for (;;) {
if (m_cursor >= m_buffer.size())
break;
if (isspace(m_buffer[++m_cursor]))
break;
}
m_buffer.take_last();
} else {
++m_cursor;
}
if (m_cursor < m_buffer.size()) {
if (amount == Word) {
// Temporarily put a space at the end of our buffer,
// doing this greatly simplifies the logic below.
m_buffer.append(' ');
for (;;) {
if (m_cursor >= m_buffer.size())
break;
if (isspace(m_buffer[++m_cursor]))
break;
}
m_buffer.take_last();
} else {
++m_cursor;
}
}
m_inline_search_cursor = m_cursor;
m_search_offset = 0;
};
auto do_backspace = [&] {
@ -559,14 +562,11 @@ void Editor::handle_read_event()
}
case 'D': // left
do_cursor_left(ctrl_held ? Word : Character);
m_inline_search_cursor = m_cursor;
m_state = InputState::Free;
ctrl_held = false;
continue;
case 'C': // right
do_cursor_right(ctrl_held ? Word : Character);
m_inline_search_cursor = m_cursor;
m_search_offset = 0;
m_state = InputState::Free;
ctrl_held = false;
continue;