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Add basic structure to print only result to stdout. 

Also reorganize init sequence a bit, and add KEY_ENTER as a recognized
input.
This commit is contained in:
Érico Rolim 2021-01-07 16:34:12 -03:00
parent 4ae24894e7
commit 8f70f6e213
1 changed files with 27 additions and 7 deletions
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34
browser.c
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@ -16,6 +16,13 @@ static void endwin_void(void)
endwin();
}
static const char *final_name;
static FILE* stdout_save;
static void print_name(void)
{
if (stdout_save && final_name) fputs(final_name, stdout_save);
}
static void finish(int sig)
{
(void)sig;
@ -24,21 +31,28 @@ static void finish(int sig)
int main()
{
signal(SIGINT, finish);
atexit(endwin_void);
at_quick_exit(endwin_void);
const char delim = '\n';
struct str_array entries = { 0 };
read_entries_from_stream(&entries, delim, stdin);
/* use stderr for input instead of stdin, since we got the list from stdin */
if (dup2(STDERR_FILENO, STDIN_FILENO) != STDIN_FILENO) {
perror("dup2");
int tmp_fd;
/* use stderr for input instead of stdin, since we get the entries from stdin */
if (dup2(STDERR_FILENO, STDIN_FILENO) != STDIN_FILENO ||
/* use stderr for output as well, since we should only print the result to stdout */
(tmp_fd = dup(STDOUT_FILENO)) < 0 ||
(stdout_save = fdopen(tmp_fd, "w")) == NULL ||
dup2(STDERR_FILENO, STDOUT_FILENO) != STDOUT_FILENO) {
perror("fd dance");
exit(1);
}
atexit(print_name);
signal(SIGINT, finish);
atexit(endwin_void);
at_quick_exit(endwin_void);
/* curses initialization */
initscr();
/* terminal configuration */
@ -80,6 +94,12 @@ int main()
while (n < sizeof name) {
int c = wgetch(prompt);
switch (c) {
case KEY_ENTER:
case '\r':
/* since we are using nonl above, only capture '\r' itself
* TODO: actually store the entry name */
final_name = name;
exit(0);
case KEY_BACKSPACE:
case 127:
name[n] = 0;