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excallback: show off the multibyte stuff

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This commit is contained in:
Mingye Wang 2021-04-20 10:09:05 +08:00
parent 8fd71febc6
commit df887418a4
1 changed files with 22 additions and 4 deletions
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26
examples/excallback.c
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@ -89,9 +89,12 @@ Jeff
void process_line(char *line); void process_line(char *line);
int change_prompt(void); int change_prompt(void);
char *get_prompt(void); char *get_prompt(void);
#ifdef EDITLINE_LIBRARY
el_status_t change_prompt_wrap(void);
#endif
int prompt = 1; int prompt = 1;
char prompt_buf[40], line_buf[256]; char prompt_buf[64], line_buf[256];
tcflag_t old_lflag; tcflag_t old_lflag;
cc_t old_vtime; cc_t old_vtime;
struct termios term; struct termios term;
@ -119,7 +122,12 @@ main()
exit(1); exit(1);
} }
// rl_add_defun("change-prompt", change_prompt, CTRL('t')); #ifdef EDITLINE_LIBRARY
el_bind_key(CTRL('t'), change_prompt_wrap);
#else
rl_add_defun("change-prompt", change_prompt, CTRL('t'));
#endif
rl_callback_handler_install(get_prompt(), process_line); rl_callback_handler_install(get_prompt(), process_line);
while(1) { while(1) {
@ -164,6 +172,15 @@ process_line(char *line)
free (line); free (line);
} }
#ifdef EDITLINE_LIBRARY
el_status_t
change_prompt_wrap(void)
{
change_prompt();
return CSstay;
}
#endif
int int
change_prompt(void) change_prompt(void)
{ {
@ -190,7 +207,8 @@ char *
get_prompt(void) get_prompt(void)
{ {
/* The prompts can even be different lengths! */ /* The prompts can even be different lengths! */
sprintf(prompt_buf, "%s", sprintf(prompt_buf, "%s", prompt ?
prompt ? "Hit ctrl-t to toggle prompt> " : "Pretty cool huh?> "); "Hit \1\033[1;31m\2ctrl-t\1\033[0m\2 to toggle prompt> " :
"Pretty cool huh 😉?> ");
return prompt_buf; return prompt_buf;
} }