mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-11-28 04:03:39 +08:00
fix setting the fish_key_reader locale
In addition to fixing the setting of the locale to C/POSIX this also corrects several problems introduced by the commits made in the past couple of days. As a consequence of dealing with all of this I decided to refactor the code to simplify one of the overly long functions I introduced in my previous change. Fixes #3168
This commit is contained in:
Kurtis Rader
parent
a6ec2dc3ed
commit
046174397b
|
|
@ -26,19 +26,18 @@
|
|||
#include "input_common.h"
|
||||
#include "proc.h"
|
||||
#include "reader.h"
|
||||
#include "wutil.h"
|
||||
|
||||
struct config_paths_t determine_config_directory_paths(const char *argv0);
|
||||
|
||||
double prev_tstamp = std::numeric_limits<double>::quiet_NaN();
|
||||
|
||||
static const char *ctrl_equivalents[] = {
|
||||
"\\000", "\\001", "\\002", "\\003", "\\004", "\\005", "\\006", "\\a",
|
||||
"\\b", "\\t", "\\n", "\\v", "\\f", "\\r", "\\014", "\\015",
|
||||
"\\016", "\\017", "\\018", "\\019", "\\020", "\\021", "\\022", "\\023",
|
||||
"\\024", "\\025", "", "\\e", "\\028", "\\029", "\\030", "\\031"};
|
||||
static const char *ctrl_symbolic_names[] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, "\\a",
|
||||
"\\b", "\\t", "\\n", "\\v", "\\f", "\\r", NULL, NULL,
|
||||
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
|
||||
NULL, NULL, NULL, "\\e", NULL, NULL, NULL, NULL};
|
||||
static bool keep_running = true;
|
||||
|
||||
/// Return true if the recent sequence of characters indicates the user wants to exit the program.
|
||||
bool should_exit(unsigned char c) {
|
||||
static bool should_exit(unsigned char c) {
|
||||
static unsigned char recent_chars[4] = {0};
|
||||
|
||||
recent_chars[0] = recent_chars[1];
|
||||
|
|
@ -49,7 +48,7 @@ bool should_exit(unsigned char c) {
|
|||
}
|
||||
|
||||
/// Return the key name if the recent sequence of characters matches a known terminfo sequence.
|
||||
char *const key_name(unsigned char c) {
|
||||
static char *const key_name(unsigned char c) {
|
||||
static char recent_chars[8] = {0};
|
||||
|
||||
recent_chars[0] = recent_chars[1];
|
||||
|
|
@ -73,10 +72,57 @@ char *const key_name(unsigned char c) {
|
|||
return NULL;
|
||||
}
|
||||
|
||||
static void output_info_about_char(unsigned char c) {
|
||||
printf("dec: %3u oct: %03o hex: %02X char: ", c, c, c);
|
||||
if (c < 32) {
|
||||
// Control characters.
|
||||
printf("\\c%c", c + 64);
|
||||
if (ctrl_symbolic_names[c]) printf(" (or %s)", ctrl_symbolic_names[c]);
|
||||
} else if (c == 32) {
|
||||
// The "space" character.
|
||||
printf("\\%03o (aka \"space\")", c);
|
||||
} else if (c == 0x7F) {
|
||||
// The "del" character.
|
||||
printf("\\%03o (aka \"del\")", c);
|
||||
} else if (c >= 128) {
|
||||
// Non-ASCII characters (i.e., those with bit 7 set).
|
||||
printf("\\%03o (aka non-ASCII)", c);
|
||||
} else {
|
||||
// ASCII characters that are not control characters.
|
||||
printf("%c", c);
|
||||
}
|
||||
putchar('\n');
|
||||
}
|
||||
|
||||
static void output_matching_key_name(unsigned char c) {
|
||||
char *name = key_name(c);
|
||||
if (name) {
|
||||
printf("Sequence matches bind key name \"%s\"\n", name);
|
||||
free(name);
|
||||
}
|
||||
}
|
||||
|
||||
static double output_elapsed_time(double prev_tstamp, bool first_char_seen) {
|
||||
// How much time has passed since the previous char was received in microseconds.
|
||||
double now = timef();
|
||||
long long int delta_tstamp_us = 1000000 * (now - prev_tstamp);
|
||||
|
||||
if (delta_tstamp_us >= 200000 && first_char_seen) putchar('\n');
|
||||
if (delta_tstamp_us >= 1000000) {
|
||||
printf(" ");
|
||||
} else {
|
||||
printf("(%3lld.%03lld ms) ", delta_tstamp_us / 1000, delta_tstamp_us % 1000);
|
||||
}
|
||||
return now;
|
||||
}
|
||||
|
||||
/// Process the characters we receive as the user presses keys.
|
||||
void process_input(bool continuous_mode) {
|
||||
static void process_input(bool continuous_mode) {
|
||||
bool first_char_seen = false;
|
||||
while (true) {
|
||||
double prev_tstamp = 0.0;
|
||||
|
||||
printf("Press a key\n\n");
|
||||
while (keep_running) {
|
||||
wchar_t wc = input_common_readch(first_char_seen && !continuous_mode);
|
||||
if (wc == WEOF) {
|
||||
return;
|
||||
|
|
@ -86,49 +132,10 @@ void process_input(bool continuous_mode) {
|
|||
return;
|
||||
}
|
||||
|
||||
double delta_tstamp = (timef() - prev_tstamp);
|
||||
// double timef() is time in seconds since unix epoch with ~microsecondish precision
|
||||
prev_tstamp = timef();
|
||||
|
||||
if (delta_tstamp > 20) {
|
||||
printf("Type 'exit' or 'quit' to terminate this program.\n");
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
unsigned char c = wc;
|
||||
if (c < 32) {
|
||||
// Control characters.
|
||||
if (ctrl_equivalents[c]) {
|
||||
printf("dec: %3u hex: %2x char: %s (aka \\c%c)", c, c, ctrl_equivalents[c],
|
||||
c + 64);
|
||||
} else {
|
||||
printf("dec: %3u hex: %2x char: \\c%c\t", c, c, c + 64);
|
||||
}
|
||||
} else if (c == 32) {
|
||||
// The space character.
|
||||
printf("dec: %3u hex: %2x char: <space>", c, c);
|
||||
} else if (c == 127) {
|
||||
// The "del" character.
|
||||
printf("dec: %3u hex: %2x char: \\x7f (aka del)", c, c);
|
||||
} else if (c >= 128) {
|
||||
// Non-ASCII characters (i.e., those with bit 7 set).
|
||||
printf("dec: %3u hex: %2x char: non-ASCII", c, c);
|
||||
} else {
|
||||
// ASCII characters that are not control characters.
|
||||
printf("dec: %3u hex: %2x char: %c\t", c, c, c);
|
||||
}
|
||||
|
||||
if (!std::isnan(delta_tstamp)) {
|
||||
printf("\t(%6.lf ms)\n", delta_tstamp * 1000);
|
||||
} else {
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
char *const name = key_name(c);
|
||||
if (name) {
|
||||
printf("Sequence matches bind key name \"%s\"\n", name);
|
||||
free(name);
|
||||
}
|
||||
prev_tstamp = output_elapsed_time(prev_tstamp, first_char_seen);
|
||||
output_info_about_char(c);
|
||||
output_matching_key_name(c);
|
||||
|
||||
if (should_exit(c)) {
|
||||
printf("\nExiting at your request.\n");
|
||||
|
|
@ -139,38 +146,42 @@ void process_input(bool continuous_mode) {
|
|||
}
|
||||
}
|
||||
|
||||
/// Make sure we cleanup before exiting if we're signaled.
|
||||
void signal_handler(int signo) {
|
||||
printf("\nExiting on receipt of signal #%d\n", signo);
|
||||
restore_term_mode();
|
||||
exit(1);
|
||||
/// Make sure we cleanup before exiting if we receive a signal that should cause us to exit.
|
||||
/// Otherwise just report receipt of the signal.
|
||||
static void signal_handler(int signo) {
|
||||
printf("\nSignal #%d (%ls) received\n\n", signo, sig2wcs(signo));
|
||||
if (signo == SIGINT || signo == SIGTERM || signo == SIGABRT || signo == SIGSEGV) {
|
||||
keep_running = false;
|
||||
}
|
||||
}
|
||||
|
||||
/// Setup our environment (e.g., tty modes), process key strokes, then reset the environment.
|
||||
void setup_and_process_keys(bool continuous_mode) {
|
||||
is_interactive_session = 1; // by definition this is interactive
|
||||
setlocale(LC_ALL, "POSIX");
|
||||
static void setup_and_process_keys(bool continuous_mode) {
|
||||
is_interactive_session = 1; // by definition this program is interactive
|
||||
setenv("LC_ALL", "POSIX", 1); // ensure we're in a single-byte locale
|
||||
set_main_thread();
|
||||
setup_fork_guards();
|
||||
|
||||
env_init();
|
||||
reader_init();
|
||||
input_init();
|
||||
|
||||
// Installing our handler for every signal (e.g., SIGSEGV) is dubious because it means that
|
||||
// signals that might generate a core dump will not do so. On the other hand this allows us
|
||||
// to restore the tty modes so the terminal is still usable when we die.
|
||||
// Install a handler for every signal. This allows us to restore the tty modes so the terminal
|
||||
// is still usable when we die. We do this only to ensure any signal not handled by
|
||||
// signal_set_handlers() gets handled for a clean exit.
|
||||
for (int signo = 1; signo < 32; signo++) {
|
||||
signal(signo, signal_handler);
|
||||
}
|
||||
|
||||
env_init();
|
||||
reader_init();
|
||||
input_init();
|
||||
proc_push_interactive(1);
|
||||
signal_set_handlers();
|
||||
|
||||
if (continuous_mode) {
|
||||
printf("ctrl-C or type 'exit' or 'quit' to terminate this program.\n");
|
||||
} else {
|
||||
set_wait_on_escape_ms(500);
|
||||
printf("\n");
|
||||
printf("To terminate this program type \"exit\" or \"quit\" in this window\n");
|
||||
printf("or \"kill %d\" in another window\n", getpid());
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
// TODO: We really should enable keypad mode but see issue #838.
|
||||
process_input(continuous_mode);
|
||||
restore_term_mode();
|
||||
restore_term_foreground_process_group();
|
||||
|
|
@ -181,8 +192,11 @@ void setup_and_process_keys(bool continuous_mode) {
|
|||
int main(int argc, char **argv) {
|
||||
program_name = L"fish_key_reader";
|
||||
bool continuous_mode = false;
|
||||
const char *short_opts = "+c";
|
||||
const struct option long_opts[] = {{"continuous", no_argument, NULL, 'd'}, {NULL, 0, NULL, 0}};
|
||||
const char *short_opts = "+cd:D:";
|
||||
const struct option long_opts[] = {{"continuous", no_argument, NULL, 'c'},
|
||||
{"debug-level", required_argument, NULL, 'd'},
|
||||
{"debug-stack-frames", required_argument, NULL, 'D'},
|
||||
{NULL, 0, NULL, 0}};
|
||||
int opt;
|
||||
while ((opt = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
|
||||
switch (opt) {
|
||||
|
|
@ -194,6 +208,36 @@ int main(int argc, char **argv) {
|
|||
continuous_mode = true;
|
||||
break;
|
||||
}
|
||||
case 'd': {
|
||||
char *end;
|
||||
long tmp;
|
||||
|
||||
errno = 0;
|
||||
tmp = strtol(optarg, &end, 10);
|
||||
|
||||
if (tmp >= 0 && tmp <= 10 && !*end && !errno) {
|
||||
debug_level = (int)tmp;
|
||||
} else {
|
||||
fwprintf(stderr, _(L"Invalid value '%s' for debug-level flag"), optarg);
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 'D': {
|
||||
char *end;
|
||||
long tmp;
|
||||
|
||||
errno = 0;
|
||||
tmp = strtol(optarg, &end, 10);
|
||||
|
||||
if (tmp > 0 && tmp <= 128 && !*end && !errno) {
|
||||
debug_stack_frames = (int)tmp;
|
||||
} else {
|
||||
fwprintf(stderr, _(L"Invalid value '%s' for debug-stack-frames flag"), optarg);
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
// We assume getopt_long() has already emitted a diagnostic msg.
|
||||
exit(1);
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user