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tweaks: return quicker from the key parsing routine

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This commit is contained in:
Benno Schulenberg 2016-07-13 18:08:44 +02:00
parent b9e83fe9f8
commit 1af1f5c9f4
1 changed files with 27 additions and 40 deletions
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67
src/winio.c
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@ -369,6 +369,9 @@ int parse_kbinput(WINDOW *win)
keycode, escapes, byte_digits);
#endif
if (keycode == ERR)
return ERR;
if (keycode == NANO_CONTROL_3) {
/* Increment the escape counter. */
escapes++;
@ -376,7 +379,9 @@ int parse_kbinput(WINDOW *win)
if (escapes > 3)
escapes = 1;
solitary = (escapes == 1 && get_key_buffer_len() == 0);
} else if (keycode != ERR) {
return ERR;
}
switch (escapes) {
case 0:
/* One non-escape: normal input mode. */
@ -507,38 +512,35 @@ int parse_kbinput(WINDOW *win)
parse_escape_sequence(win, keycode));
break;
}
}
if (retval != ERR) {
if (retval == ERR)
return ERR;
switch (retval) {
#ifdef KEY_SLEFT
/* Slang doesn't support KEY_SLEFT. */
case KEY_SLEFT:
#endif
case KEY_LEFT:
retval = sc_seq_or(do_left, keycode);
break;
return sc_seq_or(do_left, keycode);
#ifdef KEY_SRIGHT
/* Slang doesn't support KEY_SRIGHT. */
case KEY_SRIGHT:
#endif
case KEY_RIGHT:
retval = sc_seq_or(do_right, keycode);
break;
return sc_seq_or(do_right, keycode);
#ifdef KEY_SUP
/* ncurses and Slang don't support KEY_SUP. */
case KEY_SUP:
#endif
case KEY_UP:
retval = sc_seq_or(do_up_void, keycode);
break;
return sc_seq_or(do_up_void, keycode);
#ifdef KEY_SDOWN
/* ncurses and Slang don't support KEY_SDOWN. */
case KEY_SDOWN:
#endif
case KEY_DOWN:
retval = sc_seq_or(do_down_void, keycode);
break;
return sc_seq_or(do_down_void, keycode);
#ifdef KEY_SHOME
/* HP-UX 10-11 and Slang don't support KEY_SHOME. */
case KEY_SHOME:
@ -547,8 +549,7 @@ int parse_kbinput(WINDOW *win)
case KEY_HOME:
#endif
case KEY_A1: /* Home (7) on keypad with NumLock off. */
retval = sc_seq_or(do_home, keycode);
break;
return sc_seq_or(do_home, keycode);
#ifdef KEY_SEND
/* HP-UX 10-11 and Slang don't support KEY_SEND. */
case KEY_SEND:
@ -557,38 +558,31 @@ int parse_kbinput(WINDOW *win)
case KEY_END:
#endif
case KEY_C1: /* End (1) on keypad with NumLock off. */
retval = sc_seq_or(do_end, keycode);
break;
return sc_seq_or(do_end, keycode);
case KEY_PPAGE:
case KEY_A3: /* PageUp (9) on keypad with NumLock off. */
retval = sc_seq_or(do_page_up, keycode);
break;
return sc_seq_or(do_page_up, keycode);
case KEY_NPAGE:
case KEY_C3: /* PageDown (3) on keypad with NumLock off. */
retval = sc_seq_or(do_page_down, keycode);
break;
return sc_seq_or(do_page_down, keycode);
case KEY_ENTER:
retval = sc_seq_or(do_enter, keycode);
break;
return sc_seq_or(do_enter, keycode);
case KEY_BACKSPACE:
retval = sc_seq_or(do_backspace, keycode);
break;
return sc_seq_or(do_backspace, keycode);
#ifdef KEY_SDC
/* Slang doesn't support KEY_SDC. */
case KEY_SDC:
#endif
case NANO_CONTROL_8:
if (ISSET(REBIND_DELETE))
retval = sc_seq_or(do_delete, keycode);
return sc_seq_or(do_delete, keycode);
else
retval = sc_seq_or(do_backspace, keycode);
break;
return sc_seq_or(do_backspace, keycode);
#ifdef KEY_SIC
/* Slang doesn't support KEY_SIC. */
case KEY_SIC:
retval = sc_seq_or(do_insertfile_void, keycode);
break;
return sc_seq_or(do_insertfile_void, keycode);
#endif
#ifdef KEY_SBEG
/* Slang doesn't support KEY_SBEG. */
@ -599,8 +593,7 @@ int parse_kbinput(WINDOW *win)
case KEY_BEG:
#endif
case KEY_B2: /* Center (5) on keypad with NumLock off. */
retval = ERR;
break;
return ERR;
#ifdef KEY_CANCEL
#ifdef KEY_SCANCEL
/* Slang doesn't support KEY_SCANCEL. */
@ -608,8 +601,7 @@ int parse_kbinput(WINDOW *win)
#endif
/* Slang doesn't support KEY_CANCEL. */
case KEY_CANCEL:
retval = first_sc_for(currmenu, do_cancel)->keycode;
break;
return first_sc_for(currmenu, do_cancel)->keycode;
#endif
#ifdef KEY_SUSPEND
#ifdef KEY_SSUSPEND
@ -618,8 +610,7 @@ int parse_kbinput(WINDOW *win)
#endif
/* Slang doesn't support KEY_SUSPEND. */
case KEY_SUSPEND:
retval = sc_seq_or(do_suspend_void, 0);
break;
return sc_seq_or(do_suspend_void, 0);
#endif
#ifdef PDCURSES
case KEY_SHIFT_L:
@ -628,8 +619,7 @@ int parse_kbinput(WINDOW *win)
case KEY_CONTROL_R:
case KEY_ALT_L:
case KEY_ALT_R:
retval = ERR;
break;
return ERR;
#endif
#if !defined(NANO_TINY) && defined(KEY_RESIZE)
/* Since we don't change the default SIGWINCH handler when
@ -637,13 +627,10 @@ int parse_kbinput(WINDOW *win)
* Also, Slang and SunOS 5.7-5.9 don't support
* KEY_RESIZE. */
case KEY_RESIZE:
retval = ERR;
break;
return ERR;
#endif
}
}
/* Return the result. */
return retval;
}