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emacs-style movememnts and page up / down.

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This commit is contained in:
Kyle Isom
2025-11-29 20:56:21 -08:00
parent f7c6e3db9f
commit f9606626b4
10 changed files with 324 additions and 164 deletions
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58
TerminalInputHandler.cc
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@@ -103,6 +103,23 @@ map_key_to_command(const int ch, bool &k_prefix, bool &esc_meta, MappedInput &ou
out = {true, CommandId::FindStart, "", 0};
return true;
}
// Emacs-style movement aliases
if (ch == CTRL('N')) { // C-n: down
out = {true, CommandId::MoveDown, "", 0};
return true;
}
if (ch == CTRL('P')) { // C-p: up
out = {true, CommandId::MoveUp, "", 0};
return true;
}
if (ch == CTRL('F')) { // C-f: right/forward
out = {true, CommandId::MoveRight, "", 0};
return true;
}
if (ch == CTRL('B')) { // C-b: left/back
out = {true, CommandId::MoveLeft, "", 0};
return true;
}
if (ch == CTRL('A')) {
out = {true, CommandId::MoveHome, "", 0};
return true;
@@ -144,26 +161,29 @@ map_key_to_command(const int ch, bool &k_prefix, bool &esc_meta, MappedInput &ou
return true;
}
if (k_prefix) {
k_prefix = false; // single next key only
// Determine if this is a control chord (e.g., C-x) and normalize
bool ctrl = false;
int ascii_key = ch;
if (ch >= 1 && ch <= 26) {
ctrl = true;
ascii_key = 'a' + (ch - 1);
}
// For letters, normalize to lowercase ASCII
ascii_key = KLowerAscii(ascii_key);
if (k_prefix) {
k_prefix = false; // single next key only
// Determine if this is a control chord (e.g., C-x) and normalize
bool ctrl = false;
int ascii_key = ch;
if (ch >= 1 && ch <= 26) {
ctrl = true;
ascii_key = 'a' + (ch - 1);
}
// For letters, normalize to lowercase ASCII
ascii_key = KLowerAscii(ascii_key);
CommandId id;
if (KLookupKCommand(ascii_key, ctrl, id)) {
out = {true, id, "", 0};
} else {
out.hasCommand = false; // unknown chord after C-k
}
return true;
}
CommandId id;
if (KLookupKCommand(ascii_key, ctrl, id)) {
out = {true, id, "", 0};
} else {
// Show unknown k-command message with the typed character
char c = (ascii_key >= 0x20 && ascii_key <= 0x7e) ? static_cast<char>(ascii_key) : '?';
std::string arg(1, c);
out = {true, CommandId::UnknownKCommand, arg, 0};
}
return true;
}
// Printable ASCII
if (ch >= 0x20 && ch <= 0x7E) {