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Clean up some history search interfaces

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This commit is contained in:
ridiculousfish 2018-02-03 14:10:47 -08:00
parent 5262719995
commit 89709c3a89
1 changed files with 24 additions and 31 deletions
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55
src/reader.cpp
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@ -114,20 +114,13 @@
/// current contents of the kill buffer.
#define KILL_PREPEND 1
/// History search mode. This value means that no search is currently performed.
#define NO_SEARCH 0
enum class history_search_mode_t {
none, // no search
line, // searching by line
token // searching by token
};
/// History search mode. This value means that we are performing a line history search.
#define LINE_SEARCH 1
/// History search mode. This value means that we are performing a token history search.
#define TOKEN_SEARCH 2
/// History search mode. This value means we are searching backwards.
#define SEARCH_BACKWARD 0
/// History search mode. This value means we are searching forwards.
#define SEARCH_FORWARD 1
enum class history_search_direction_t { forward, backward };
/// Any time the contents of a buffer changes, we update the generation count. This allows for our
/// background threads to notice it and skip doing work that they would otherwise have to do.
@ -230,7 +223,7 @@ class reader_data_t {
/// Pointer to previous reader_data.
reader_data_t *next;
/// This variable keeps state on if we are in search mode, and if yes, what mode.
int search_mode;
history_search_mode_t search_mode = history_search_mode_t::none;
/// Keep track of whether any internal code has done something which is known to require a
/// repaint.
bool repaint_needed;
@ -279,7 +272,6 @@ class reader_data_t {
end_loop(false),
prev_end_loop(false),
next(0),
search_mode(0),
repaint_needed(false),
screen_reset_needed(false),
exit_on_interrupt(false) {}
@ -1699,10 +1691,11 @@ static void reset_token_history() {
/// Handles a token search command.
///
/// \param forward if the search should be forward or reverse
/// \param dir if the search should be forward or reverse
/// \param reset whether the current token should be made the new search token
static void handle_token_history(int forward, int reset) {
static void handle_token_history(history_search_direction_t dir, bool reset = false) {
if (!data) return;
const bool forward = (dir == history_search_direction_t::forward);
wcstring str;
size_t current_pos;
@ -1773,7 +1766,7 @@ static void handle_token_history(int forward, int reset) {
data->search_prev.push_back(str);
} else if (!reader_interrupted()) {
data->token_history_pos = -1;
handle_token_history(0, 0);
handle_token_history(history_search_direction_t::forward);
}
}
}
@ -1851,7 +1844,7 @@ static void reader_set_buffer_maintaining_pager(const wcstring &b, size_t pos) {
update_buff_pos(&data->command_line, pos);
// Clear history search and pager contents.
data->search_mode = NO_SEARCH;
data->search_mode = history_search_mode_t::none;
data->search_buff.clear();
data->history_search.go_to_end();
@ -2352,7 +2345,7 @@ const wchar_t *reader_readline(int nchars) {
data->cycle_cursor_pos = 0;
data->search_buff.clear();
data->search_mode = NO_SEARCH;
data->search_mode = history_search_mode_t::none;
exec_prompt();
@ -2687,8 +2680,8 @@ const wchar_t *reader_readline(int nchars) {
}
// Escape was pressed.
case L'\e': {
if (data->search_mode) {
data->search_mode = NO_SEARCH;
if (data->search_mode != history_search_mode_t::none) {
data->search_mode = history_search_mode_t::none;
if (data->token_history_pos == (size_t)-1) {
// history_reset();
@ -2809,12 +2802,12 @@ const wchar_t *reader_readline(int nchars) {
case R_HISTORY_SEARCH_FORWARD:
case R_HISTORY_TOKEN_SEARCH_FORWARD: {
int reset = 0;
if (data->search_mode == NO_SEARCH) {
if (data->search_mode == history_search_mode_t::none) {
reset = 1;
if ((c == R_HISTORY_SEARCH_BACKWARD) || (c == R_HISTORY_SEARCH_FORWARD)) {
data->search_mode = LINE_SEARCH;
data->search_mode = history_search_mode_t::line;
} else {
data->search_mode = TOKEN_SEARCH;
data->search_mode = history_search_mode_t::token;
}
const editable_line_t *el = &data->command_line;
@ -2833,7 +2826,7 @@ const wchar_t *reader_readline(int nchars) {
data->history_search.skip_matches(skip_list);
}
if (data->search_mode == LINE_SEARCH) {
if (data->search_mode == history_search_mode_t::line) {
if ((c == R_HISTORY_SEARCH_BACKWARD) ||
(c == R_HISTORY_TOKEN_SEARCH_BACKWARD)) {
data->history_search.go_backwards();
@ -2851,12 +2844,12 @@ const wchar_t *reader_readline(int nchars) {
new_text = data->history_search.current_string();
}
set_command_line_and_position(&data->command_line, new_text, new_text.size());
} else if (data->search_mode == TOKEN_SEARCH) {
} else if (data->search_mode == history_search_mode_t::token) {
if ((c == R_HISTORY_SEARCH_BACKWARD) ||
(c == R_HISTORY_TOKEN_SEARCH_BACKWARD)) {
handle_token_history(SEARCH_BACKWARD, reset);
handle_token_history(history_search_direction_t::backward, reset);
} else {
handle_token_history(SEARCH_FORWARD, reset);
handle_token_history(history_search_direction_t::forward, reset);
}
}
break;
@ -3217,7 +3210,7 @@ const wchar_t *reader_readline(int nchars) {
if ((c != R_HISTORY_SEARCH_BACKWARD) && (c != R_HISTORY_SEARCH_FORWARD) &&
(c != R_HISTORY_TOKEN_SEARCH_BACKWARD) && (c != R_HISTORY_TOKEN_SEARCH_FORWARD) &&
(c != R_NULL) && (c != R_REPAINT) && (c != R_FORCE_REPAINT)) {
data->search_mode = NO_SEARCH;
data->search_mode = history_search_mode_t::none;
data->search_buff.clear();
data->history_search.go_to_end();
data->token_history_pos = -1;
@ -3253,7 +3246,7 @@ int reader_search_mode() {
if (!data) {
return -1;
}
return data->search_mode == NO_SEARCH ? 0 : 1;
return data->search_mode == history_search_mode_t::none ? 0 : 1;
}
int reader_has_pager_contents() {