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Implement C-a C-e C-b C-f in the editor 

Updates #4
This commit is contained in:
Přemysl Eric Janouch 2020-10-21 23:53:30 +02:00
parent 5d0c105b10
commit 12d8f6a931
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 26 additions and 1 deletions
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27
sdn.cpp
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@ -415,7 +415,8 @@ enum { ALT = 1 << 24, SYM = 1 << 25 }; // Outside the range of Unicode
XX(CHDIR) XX(PARENT) XX(GO_START) XX(GO_HOME) \
XX(SEARCH) XX(RENAME) XX(RENAME_PREFILL) \
XX(TOGGLE_FULL) XX(REVERSE_SORT) XX(SHOW_HIDDEN) XX(REDRAW) XX(RELOAD) \
XX(INPUT_ABORT) XX(INPUT_CONFIRM) XX(INPUT_B_DELETE)
XX(INPUT_ABORT) XX(INPUT_CONFIRM) XX(INPUT_B_DELETE) \
XX(INPUT_BACKWARD) XX(INPUT_FORWARD) XX(INPUT_BEGINNING) XX(INPUT_END)
#define XX(name) ACTION_ ## name,
enum action { ACTIONS(XX) ACTION_COUNT };
@ -453,6 +454,10 @@ static map<wint_t, action> g_input_actions {
// Sometimes terminfo is wrong, we need to accept both of these
{L'\b', ACTION_INPUT_B_DELETE}, {CTRL ('?'), ACTION_INPUT_B_DELETE},
{KEY (BACKSPACE), ACTION_INPUT_B_DELETE},
{CTRL ('B'), ACTION_INPUT_BACKWARD}, {KEY (LEFT), ACTION_INPUT_BACKWARD},
{CTRL ('F'), ACTION_INPUT_FORWARD}, {KEY (RIGHT), ACTION_INPUT_FORWARD},
{CTRL ('A'), ACTION_INPUT_BEGINNING}, {KEY (HOME), ACTION_INPUT_BEGINNING},
{CTRL ('E'), ACTION_INPUT_END}, {KEY (END), ACTION_INPUT_END},
};
static const map<string, map<wint_t, action>*> g_binding_contexts {
{"normal", &g_normal_actions}, {"input", &g_input_actions},
@ -1185,6 +1190,26 @@ fun handle_editor (wint_t c) {
g.editor_on_change = nullptr;
g.editor_on_confirm = nullptr;
break;
case ACTION_INPUT_BEGINNING:
g.editor_cursor = 0;
break;
case ACTION_INPUT_END:
g.editor_cursor = g.editor_line.length ();
break;
case ACTION_INPUT_BACKWARD:
while (g.editor_cursor > 0) {
if (--g.editor_cursor <= 0
|| wcwidth (g.editor_line.at (g.editor_cursor)))
break;
}
break;
case ACTION_INPUT_FORWARD:
while (g.editor_cursor < int (g.editor_line.length ())) {
if (++g.editor_cursor >= int (g.editor_line.length ())
|| wcwidth (g.editor_line.at (g.editor_cursor)))
break;
}
break;
case ACTION_INPUT_B_DELETE:
// Remove the last character including its postfix combining characters
while (g.editor_cursor > 0) {