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fish-shell/src/input.cpp
Fabian Homborg cd16676911 Make "trying to match mapping" debug priority 4 
Instantly makes debug output _much_ more usable.
2017-04-01 10:43:01 +02:00

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// Functions for reading a character of input from stdin.
#include "config.h"
#include <errno.h>
#include <termios.h>
#include <wchar.h>
#include <wctype.h>
#if HAVE_TERM_H
#include <term.h>
#elif HAVE_NCURSES_TERM_H
#include <ncurses/term.h>
#endif
#include <algorithm>
#include <memory>
#include <string>
#include <vector>
#include "common.h"
#include "env.h"
#include "event.h"
#include "fallback.h" // IWYU pragma: keep
#include "input.h"
#include "input_common.h"
#include "io.h"
#include "parser.h"
#include "proc.h"
#include "reader.h"
#include "signal.h" // IWYU pragma: keep
#include "wutil.h" // IWYU pragma: keep
#define MAX_INPUT_FUNCTION_ARGS 20
/// Struct representing a keybinding. Returned by input_get_mappings.
struct input_mapping_t {
/// Character sequence which generates this event.
wcstring seq;
/// Commands that should be evaluated by this mapping.
wcstring_list_t commands;
/// We wish to preserve the user-specified order. This is just an incrementing value.
unsigned int specification_order;
/// Mode in which this command should be evaluated.
wcstring mode;
/// New mode that should be switched to after command evaluation.
wcstring sets_mode;
input_mapping_t(const wcstring &s, const std::vector<wcstring> &c, const wcstring &m,
const wcstring &sm)
: seq(s), commands(c), mode(m), sets_mode(sm) {
static unsigned int s_last_input_map_spec_order = 0;
specification_order = ++s_last_input_map_spec_order;
}
};
/// A struct representing the mapping from a terminfo key name to a terminfo character sequence.
struct terminfo_mapping_t {
const wchar_t *name; // name of key
const char *seq; // character sequence generated on keypress
};
/// Names of all the input functions supported.
static const wchar_t *const name_arr[] = {L"beginning-of-line",
L"end-of-line",
L"forward-char",
L"backward-char",
L"forward-word",
L"backward-word",
L"forward-bigword",
L"backward-bigword",
L"history-search-backward",
L"history-search-forward",
L"delete-char",
L"backward-delete-char",
L"kill-line",
L"yank",
L"yank-pop",
L"complete",
L"complete-and-search",
L"beginning-of-history",
L"end-of-history",
L"backward-kill-line",
L"kill-whole-line",
L"kill-word",
L"kill-bigword",
L"backward-kill-word",
L"backward-kill-path-component",
L"backward-kill-bigword",
L"history-token-search-backward",
L"history-token-search-forward",
L"self-insert",
L"transpose-chars",
L"transpose-words",
L"upcase-word",
L"downcase-word",
L"capitalize-word",
L"vi-arg-digit",
L"vi-delete-to",
L"execute",
L"beginning-of-buffer",
L"end-of-buffer",
L"repaint",
L"force-repaint",
L"up-line",
L"down-line",
L"suppress-autosuggestion",
L"accept-autosuggestion",
L"begin-selection",
L"swap-selection-start-stop",
L"end-selection",
L"kill-selection",
L"forward-jump",
L"backward-jump",
L"and",
L"cancel"};
wcstring describe_char(wint_t c) {
wint_t initial_cmd_char = R_BEGINNING_OF_LINE;
long name_count = sizeof(name_arr) / sizeof(*name_arr);
if (c >= initial_cmd_char && c < initial_cmd_char + name_count) {
return format_string(L"%02x (%ls)", c, name_arr[c - initial_cmd_char]);
}
return format_string(L"%02x", c);
}
/// Internal code for each supported input function.
static const wchar_t code_arr[] = {R_BEGINNING_OF_LINE,
R_END_OF_LINE,
R_FORWARD_CHAR,
R_BACKWARD_CHAR,
R_FORWARD_WORD,
R_BACKWARD_WORD,
R_FORWARD_BIGWORD,
R_BACKWARD_BIGWORD,
R_HISTORY_SEARCH_BACKWARD,
R_HISTORY_SEARCH_FORWARD,
R_DELETE_CHAR,
R_BACKWARD_DELETE_CHAR,
R_KILL_LINE,
R_YANK,
R_YANK_POP,
R_COMPLETE,
R_COMPLETE_AND_SEARCH,
R_BEGINNING_OF_HISTORY,
R_END_OF_HISTORY,
R_BACKWARD_KILL_LINE,
R_KILL_WHOLE_LINE,
R_KILL_WORD,
R_KILL_BIGWORD,
R_BACKWARD_KILL_WORD,
R_BACKWARD_KILL_PATH_COMPONENT,
R_BACKWARD_KILL_BIGWORD,
R_HISTORY_TOKEN_SEARCH_BACKWARD,
R_HISTORY_TOKEN_SEARCH_FORWARD,
R_SELF_INSERT,
R_TRANSPOSE_CHARS,
R_TRANSPOSE_WORDS,
R_UPCASE_WORD,
R_DOWNCASE_WORD,
R_CAPITALIZE_WORD,
R_VI_ARG_DIGIT,
R_VI_DELETE_TO,
R_EXECUTE,
R_BEGINNING_OF_BUFFER,
R_END_OF_BUFFER,
R_REPAINT,
R_FORCE_REPAINT,
R_UP_LINE,
R_DOWN_LINE,
R_SUPPRESS_AUTOSUGGESTION,
R_ACCEPT_AUTOSUGGESTION,
R_BEGIN_SELECTION,
R_SWAP_SELECTION_START_STOP,
R_END_SELECTION,
R_KILL_SELECTION,
R_FORWARD_JUMP,
R_BACKWARD_JUMP,
R_AND,
R_CANCEL};
/// Mappings for the current input mode.
static std::vector<input_mapping_t> mapping_list;
/// Terminfo map list.
static std::vector<terminfo_mapping_t> terminfo_mappings;
#define TERMINFO_ADD(key) \
{ (L## #key) + 4, key }
/// List of all terminfo mappings.
static std::vector<terminfo_mapping_t> mappings;
/// Set to true when the input subsytem has been initialized.
bool input_initialized = false;
/// Initialize terminfo.
static void init_input_terminfo();
static wchar_t input_function_args[MAX_INPUT_FUNCTION_ARGS];
static bool input_function_status;
static int input_function_args_index = 0;
/// Return the current bind mode.
wcstring input_get_bind_mode() {
env_var_t mode = env_get_string(FISH_BIND_MODE_VAR);
return mode.missing() ? DEFAULT_BIND_MODE : mode;
}
/// Set the current bind mode.
void input_set_bind_mode(const wcstring &bm) {
// Only set this if it differs to not execute variable handlers all the time.
// modes may not be empty - empty is a sentinel value meaning to not change the mode
assert(!bm.empty());
if (input_get_bind_mode() != bm.c_str()) {
env_set(FISH_BIND_MODE_VAR, bm.c_str(), ENV_GLOBAL);
}
}
/// Returns the arity of a given input function.
static int input_function_arity(int function) {
return (function == R_FORWARD_JUMP || function == R_BACKWARD_JUMP) ? 1 : 0;
}
/// Sets the return status of the most recently executed input function.
void input_function_set_status(bool status) { input_function_status = status; }
/// Helper function to compare the lengths of sequences.
static bool length_is_greater_than(const input_mapping_t &m1, const input_mapping_t &m2) {
return m1.seq.size() > m2.seq.size();
}
static bool specification_order_is_less_than(const input_mapping_t &m1, const input_mapping_t &m2) {
return m1.specification_order < m2.specification_order;
}
/// Inserts an input mapping at the correct position. We sort them in descending order by length, so
/// that we test longer sequences first.
static void input_mapping_insert_sorted(const input_mapping_t &new_mapping) {
std::vector<input_mapping_t>::iterator loc = std::lower_bound(
mapping_list.begin(), mapping_list.end(), new_mapping, length_is_greater_than);
mapping_list.insert(loc, new_mapping);
}
/// Adds an input mapping.
void input_mapping_add(const wchar_t *sequence, const wchar_t *const *commands, size_t commands_len,
const wchar_t *mode, const wchar_t *sets_mode) {
CHECK(sequence, );
CHECK(commands, );
CHECK(mode, );
CHECK(sets_mode, );
// debug( 0, L"Add mapping from %ls to %ls in mode %ls", escape_string(sequence,
// ESCAPE_ALL).c_str(),
// escape_string(command, ESCAPE_ALL).c_str(), mode);
// Remove existing mappings with this sequence.
const wcstring_list_t commands_vector(commands, commands + commands_len);
for (size_t i = 0; i < mapping_list.size(); i++) {
input_mapping_t &m = mapping_list.at(i);
if (m.seq == sequence && m.mode == mode) {
m.commands = commands_vector;
m.sets_mode = sets_mode;
return;
}
}
// Add a new mapping, using the next order.
const input_mapping_t new_mapping = input_mapping_t(sequence, commands_vector, mode, sets_mode);
input_mapping_insert_sorted(new_mapping);
}
void input_mapping_add(const wchar_t *sequence, const wchar_t *command, const wchar_t *mode,
const wchar_t *sets_mode) {
input_mapping_add(sequence, &command, 1, mode, sets_mode);
}
/// Handle interruptions to key reading by reaping finshed jobs and propagating the interrupt to the
/// reader.
static int interrupt_handler() {
// Fire any pending events.
event_fire(NULL);
// Reap stray processes, including printing exit status messages.
if (job_reap(1)) reader_repaint_needed();
// Tell the reader an event occured.
if (reader_reading_interrupted()) {
return shell_modes.c_cc[VINTR];
}
return R_NULL;
}
/// Set up arrays used by readch to detect escape sequences for special keys and perform related
/// initializations for our input subsystem.
void init_input() {
input_common_init(&interrupt_handler);
init_input_terminfo();
// If we have no keybindings, add a few simple defaults.
if (mapping_list.empty()) {
input_mapping_add(L"", L"self-insert");
input_mapping_add(L"\n", L"execute");
input_mapping_add(L"\r", L"execute");
input_mapping_add(L"\t", L"complete");
input_mapping_add(L"\x3", L"commandline \"\"");
input_mapping_add(L"\x4", L"exit");
input_mapping_add(L"\x5", L"bind");
}
input_initialized = true;
return;
}
void input_destroy() {
if (!input_initialized) return;
input_initialized = false;
input_common_destroy();
}
void input_function_push_arg(wchar_t arg) {
input_function_args[input_function_args_index++] = arg;
}
wchar_t input_function_pop_arg() { return input_function_args[--input_function_args_index]; }
void input_function_push_args(int code) {
int arity = input_function_arity(code);
std::vector<wchar_t> skipped;
for (int i = 0; i < arity; i++) {
wchar_t arg;
// Skip and queue up any function codes. See issue #2357.
while ((arg = input_common_readch(0)) >= R_MIN && arg <= R_MAX) {
skipped.push_back(arg);
}
input_function_push_arg(arg);
}
// Push the function codes back into the input stream.
size_t idx = skipped.size();
while (idx--) {
input_common_next_ch(skipped.at(idx));
}
}
/// Perform the action of the specified binding. allow_commands controls whether fish commands
/// should be executed, or should be deferred until later.
static void input_mapping_execute(const input_mapping_t &m, bool allow_commands) {
// has_functions: there are functions that need to be put on the input queue
// has_commands: there are shell commands that need to be evaluated
bool has_commands = false, has_functions = false;
for (wcstring_list_t::const_iterator it = m.commands.begin(), end = m.commands.end(); it != end;
++it) {
if (input_function_get_code(*it) != INPUT_CODE_NONE)
has_functions = true;
else
has_commands = true;
}
// !has_functions && !has_commands: only set bind mode
if (!has_commands && !has_functions) {
if (!m.sets_mode.empty()) input_set_bind_mode(m.sets_mode);
return;
}
if (has_commands && !allow_commands) {
// We don't want to run commands yet. Put the characters back and return R_NULL.
for (wcstring::const_reverse_iterator it = m.seq.rbegin(), end = m.seq.rend(); it != end;
++it) {
input_common_next_ch(*it);
}
input_common_next_ch(R_NULL);
return; // skip the input_set_bind_mode
} else if (has_functions && !has_commands) {
// Functions are added at the head of the input queue.
for (wcstring_list_t::const_reverse_iterator it = m.commands.rbegin(),
end = m.commands.rend();
it != end; ++it) {
wchar_t code = input_function_get_code(*it);
input_function_push_args(code);
input_common_next_ch(code);
}
} else if (has_commands && !has_functions) {
// Execute all commands.
//
// FIXME(snnw): if commands add stuff to input queue (e.g. commandline -f execute), we won't
// see that until all other commands have also been run.
int last_status = proc_get_last_status();
for (wcstring_list_t::const_iterator it = m.commands.begin(), end = m.commands.end();
it != end; ++it) {
parser_t::principal_parser().eval(it->c_str(), io_chain_t(), TOP);
}
proc_set_last_status(last_status);
input_common_next_ch(R_NULL);
} else {
// Invalid binding, mixed commands and functions. We would need to execute these one by
// one.
input_common_next_ch(R_NULL);
}
// Empty bind mode indicates to not reset the mode (#2871)
if (!m.sets_mode.empty()) input_set_bind_mode(m.sets_mode);
}
/// Try reading the specified function mapping.
static bool input_mapping_is_match(const input_mapping_t &m) {
wchar_t c = 0;
int j;
debug(4, L"trying to match mapping %ls", escape_string(m.seq.c_str(), ESCAPE_ALL).c_str());
const wchar_t *str = m.seq.c_str();
for (j = 0; str[j] != L'\0'; j++) {
bool timed = (j > 0 && iswcntrl(str[0]));
c = input_common_readch(timed);
if (str[j] != c) {
break;
}
}
if (str[j] == L'\0') {
// debug(0, L"matched mapping %ls (%ls)\n", escape_string(m.seq.c_str(),
// ESCAPE_ALL).c_str(),
// m.command.c_str());
// We matched the entire sequence.
return true;
}
// Reinsert the chars we read to be read again since we didn't match the bind sequence (i.e.,
// the input mapping).
input_common_next_ch(c);
for (int k = j - 1; k >= 0; k--) {
input_common_next_ch(m.seq[k]);
}
return false;
}
void input_queue_ch(wint_t ch) { input_common_queue_ch(ch); }
static void input_mapping_execute_matching_or_generic(bool allow_commands) {
const input_mapping_t *generic = NULL;
const wcstring bind_mode = input_get_bind_mode();
for (size_t i = 0; i < mapping_list.size(); i++) {
const input_mapping_t &m = mapping_list.at(i);
// debug(0, L"trying mapping (%ls,%ls,%ls)\n", escape_string(m.seq.c_str(),
// ESCAPE_ALL).c_str(),
// m.mode.c_str(), m.sets_mode.c_str());
if (m.mode != bind_mode) {
// debug(0, L"skipping mapping because mode %ls != %ls\n", m.mode.c_str(),
// input_get_bind_mode().c_str());
continue;
}
if (m.seq.length() == 0) {
generic = &m;
} else if (input_mapping_is_match(m)) {
input_mapping_execute(m, allow_commands);
return;
}
}
if (generic) {
input_mapping_execute(*generic, allow_commands);
} else {
debug(2, L"no generic found, ignoring char...");
wchar_t c = input_common_readch(0);
if (c == R_EOF) {
input_common_next_ch(c);
}
}
}
/// Helper function. Picks through the queue of incoming characters until we get to one that's not a
/// readline function.
static wchar_t input_read_characters_only() {
std::vector<wchar_t> functions_to_put_back;
wchar_t char_to_return;
for (;;) {
char_to_return = input_common_readch(0);
bool is_readline_function = (char_to_return >= R_MIN && char_to_return <= R_MAX);
// R_NULL and R_EOF are more control characters than readline functions, so check specially
// for those.
if (!is_readline_function || char_to_return == R_NULL || char_to_return == R_EOF) {
break;
}
// This is a readline function; save it off for later re-enqueing and try again.
functions_to_put_back.push_back(char_to_return);
}
// Restore any readline functions, in reverse to preserve their original order.
size_t idx = functions_to_put_back.size();
while (idx--) {
input_common_next_ch(functions_to_put_back.at(idx));
}
return char_to_return;
}
wint_t input_readch(bool allow_commands) {
CHECK_BLOCK(R_NULL);
// Clear the interrupted flag.
reader_reset_interrupted();
// Search for sequence in mapping tables.
while (1) {
wchar_t c = input_common_readch(0);
if (c >= R_MIN && c <= R_MAX) {
switch (c) {
case R_EOF: // if it's closed, then just return
{
return R_EOF;
}
case R_SELF_INSERT: {
// Issue #1595: ensure we only insert characters, not readline functions. The
// common case is that this will be empty.
return input_read_characters_only();
}
case R_AND: {
if (input_function_status) {
return input_readch();
}
c = input_common_readch(0);
while (c >= R_MIN && c <= R_MAX) {
c = input_common_readch(0);
}
input_common_next_ch(c);
return input_readch();
}
default: { return c; }
}
} else {
input_common_next_ch(c);
input_mapping_execute_matching_or_generic(allow_commands);
// Regarding allow_commands, we're in a loop, but if a fish command
// is executed, R_NULL is unread, so the next pass through the loop
// we'll break out and return it.
}
}
}
std::vector<input_mapping_name_t> input_mapping_get_names() {
// Sort the mappings by the user specification order, so we can return them in the same order
// that the user specified them in.
std::vector<input_mapping_t> local_list = mapping_list;
std::sort(local_list.begin(), local_list.end(), specification_order_is_less_than);
std::vector<input_mapping_name_t> result;
result.reserve(local_list.size());
for (size_t i = 0; i < local_list.size(); i++) {
const input_mapping_t &m = local_list.at(i);
result.push_back((input_mapping_name_t){m.seq, m.mode});
}
return result;
}
bool input_mapping_erase(const wcstring &sequence, const wcstring &mode) {
ASSERT_IS_MAIN_THREAD();
bool result = false;
for (std::vector<input_mapping_t>::iterator it = mapping_list.begin(), end = mapping_list.end();
it != end; ++it) {
if (sequence == it->seq && mode == it->mode) {
mapping_list.erase(it);
result = true;
break;
}
}
return result;
}
bool input_mapping_get(const wcstring &sequence, const wcstring &mode, wcstring_list_t *out_cmds,
wcstring *out_sets_mode) {
bool result = false;
for (std::vector<input_mapping_t>::const_iterator it = mapping_list.begin(),
end = mapping_list.end();
it != end; ++it) {
if (sequence == it->seq && mode == it->mode) {
*out_cmds = it->commands;
*out_sets_mode = it->sets_mode;
result = true;
break;
}
}
return result;
}
/// Add all terminfo mappings and cache other terminfo facts we care about.
static void init_input_terminfo() {
assert(curses_initialized);
if (!cur_term) return; // setupterm() failed so we can't referency any key definitions
const terminfo_mapping_t tinfos[] = {
TERMINFO_ADD(key_a1),
TERMINFO_ADD(key_a3),
TERMINFO_ADD(key_b2),
TERMINFO_ADD(key_backspace),
TERMINFO_ADD(key_beg),
TERMINFO_ADD(key_btab),
TERMINFO_ADD(key_c1),
TERMINFO_ADD(key_c3),
TERMINFO_ADD(key_cancel),
TERMINFO_ADD(key_catab),
TERMINFO_ADD(key_clear),
TERMINFO_ADD(key_close),
TERMINFO_ADD(key_command),
TERMINFO_ADD(key_copy),
TERMINFO_ADD(key_create),
TERMINFO_ADD(key_ctab),
TERMINFO_ADD(key_dc),
TERMINFO_ADD(key_dl),
TERMINFO_ADD(key_down),
TERMINFO_ADD(key_eic),
TERMINFO_ADD(key_end),
TERMINFO_ADD(key_enter),
TERMINFO_ADD(key_eol),
TERMINFO_ADD(key_eos),
TERMINFO_ADD(key_exit),
TERMINFO_ADD(key_f0),
TERMINFO_ADD(key_f1),
TERMINFO_ADD(key_f2),
TERMINFO_ADD(key_f3),
TERMINFO_ADD(key_f4),
TERMINFO_ADD(key_f5),
TERMINFO_ADD(key_f6),
TERMINFO_ADD(key_f7),
TERMINFO_ADD(key_f8),
TERMINFO_ADD(key_f9),
TERMINFO_ADD(key_f10),
TERMINFO_ADD(key_f11),
TERMINFO_ADD(key_f12),
TERMINFO_ADD(key_f13),
TERMINFO_ADD(key_f14),
TERMINFO_ADD(key_f15),
TERMINFO_ADD(key_f16),
TERMINFO_ADD(key_f17),
TERMINFO_ADD(key_f18),
TERMINFO_ADD(key_f19),
TERMINFO_ADD(key_f20),
#if 0
// I know of no keyboard with more than 20 function keys, so adding the rest here makes very
// little sense, since it will take up a lot of room in any listings (like tab completions),
// but with no benefit.
TERMINFO_ADD(key_f21),
TERMINFO_ADD(key_f22),
TERMINFO_ADD(key_f23),
TERMINFO_ADD(key_f24),
TERMINFO_ADD(key_f25),
TERMINFO_ADD(key_f26),
TERMINFO_ADD(key_f27),
TERMINFO_ADD(key_f28),
TERMINFO_ADD(key_f29),
TERMINFO_ADD(key_f30),
TERMINFO_ADD(key_f31),
TERMINFO_ADD(key_f32),
TERMINFO_ADD(key_f33),
TERMINFO_ADD(key_f34),
TERMINFO_ADD(key_f35),
TERMINFO_ADD(key_f36),
TERMINFO_ADD(key_f37),
TERMINFO_ADD(key_f38),
TERMINFO_ADD(key_f39),
TERMINFO_ADD(key_f40),
TERMINFO_ADD(key_f41),
TERMINFO_ADD(key_f42),
TERMINFO_ADD(key_f43),
TERMINFO_ADD(key_f44),
TERMINFO_ADD(key_f45),
TERMINFO_ADD(key_f46),
TERMINFO_ADD(key_f47),
TERMINFO_ADD(key_f48),
TERMINFO_ADD(key_f49),
TERMINFO_ADD(key_f50),
TERMINFO_ADD(key_f51),
TERMINFO_ADD(key_f52),
TERMINFO_ADD(key_f53),
TERMINFO_ADD(key_f54),
TERMINFO_ADD(key_f55),
TERMINFO_ADD(key_f56),
TERMINFO_ADD(key_f57),
TERMINFO_ADD(key_f58),
TERMINFO_ADD(key_f59),
TERMINFO_ADD(key_f60),
TERMINFO_ADD(key_f61),
TERMINFO_ADD(key_f62),
TERMINFO_ADD(key_f63),
#endif
TERMINFO_ADD(key_find),
TERMINFO_ADD(key_help),
TERMINFO_ADD(key_home),
TERMINFO_ADD(key_ic),
TERMINFO_ADD(key_il),
TERMINFO_ADD(key_left),
TERMINFO_ADD(key_ll),
TERMINFO_ADD(key_mark),
TERMINFO_ADD(key_message),
TERMINFO_ADD(key_move),
TERMINFO_ADD(key_next),
TERMINFO_ADD(key_npage),
TERMINFO_ADD(key_open),
TERMINFO_ADD(key_options),
TERMINFO_ADD(key_ppage),
TERMINFO_ADD(key_previous),
TERMINFO_ADD(key_print),
TERMINFO_ADD(key_redo),
TERMINFO_ADD(key_reference),
TERMINFO_ADD(key_refresh),
TERMINFO_ADD(key_replace),
TERMINFO_ADD(key_restart),
TERMINFO_ADD(key_resume),
TERMINFO_ADD(key_right),
TERMINFO_ADD(key_save),
TERMINFO_ADD(key_sbeg),
TERMINFO_ADD(key_scancel),
TERMINFO_ADD(key_scommand),
TERMINFO_ADD(key_scopy),
TERMINFO_ADD(key_screate),
TERMINFO_ADD(key_sdc),
TERMINFO_ADD(key_sdl),
TERMINFO_ADD(key_select),
TERMINFO_ADD(key_send),
TERMINFO_ADD(key_seol),
TERMINFO_ADD(key_sexit),
TERMINFO_ADD(key_sf),
TERMINFO_ADD(key_sfind),
TERMINFO_ADD(key_shelp),
TERMINFO_ADD(key_shome),
TERMINFO_ADD(key_sic),
TERMINFO_ADD(key_sleft),
TERMINFO_ADD(key_smessage),
TERMINFO_ADD(key_smove),
TERMINFO_ADD(key_snext),
TERMINFO_ADD(key_soptions),
TERMINFO_ADD(key_sprevious),
TERMINFO_ADD(key_sprint),
TERMINFO_ADD(key_sr),
TERMINFO_ADD(key_sredo),
TERMINFO_ADD(key_sreplace),
TERMINFO_ADD(key_sright),
TERMINFO_ADD(key_srsume),
TERMINFO_ADD(key_ssave),
TERMINFO_ADD(key_ssuspend),
TERMINFO_ADD(key_stab),
TERMINFO_ADD(key_sundo),
TERMINFO_ADD(key_suspend),
TERMINFO_ADD(key_undo),
TERMINFO_ADD(key_up)
};
const size_t count = sizeof tinfos / sizeof *tinfos;
terminfo_mappings.reserve(terminfo_mappings.size() + count);
terminfo_mappings.insert(terminfo_mappings.end(), tinfos, tinfos + count);
}
bool input_terminfo_get_sequence(const wchar_t *name, wcstring *out_seq) {
ASSERT_IS_MAIN_THREAD();
assert(input_initialized);
CHECK(name, 0);
const char *res = 0;
int err = ENOENT;
for (size_t i = 0; i < terminfo_mappings.size(); i++) {
const terminfo_mapping_t &m = terminfo_mappings.at(i);
if (!wcscmp(name, m.name)) {
res = m.seq;
err = EILSEQ;
break;
}
}
if (!res) {
errno = err;
return false;
}
*out_seq = format_string(L"%s", res);
return true;
}
bool input_terminfo_get_name(const wcstring &seq, wcstring *out_name) {
assert(input_initialized);
for (size_t i = 0; i < terminfo_mappings.size(); i++) {
terminfo_mapping_t &m = terminfo_mappings.at(i);
if (!m.seq) {
continue;
}
const wcstring map_buf = format_string(L"%s", m.seq);
if (map_buf == seq) {
out_name->assign(m.name);
return true;
}
}
return false;
}
wcstring_list_t input_terminfo_get_names(bool skip_null) {
assert(input_initialized);
wcstring_list_t result;
result.reserve(terminfo_mappings.size());
for (size_t i = 0; i < terminfo_mappings.size(); i++) {
terminfo_mapping_t &m = terminfo_mappings.at(i);
if (skip_null && !m.seq) {
continue;
}
result.push_back(wcstring(m.name));
}
return result;
}
wcstring_list_t input_function_get_names(void) {
size_t count = sizeof name_arr / sizeof *name_arr;
return wcstring_list_t(name_arr, name_arr + count);
}
wchar_t input_function_get_code(const wcstring &name) {
for (size_t i = 0; i < sizeof code_arr / sizeof *code_arr; i++) {
if (name == name_arr[i]) {
return code_arr[i];
}
}
return INPUT_CODE_NONE;
}
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