K_S_TAB (reference) in projects: vim-8.2.3635

301 #define K_S_TAB		TERMCAP2KEY('k', 'B')  macro

1846 	if (c != p_wc && c == K_S_TAB && xpc.xp_numfiles > 0)  in getcmdline_int()
1951 	if (c == K_S_TAB && KeyTyped)  in getcmdline_int()

1965 	    case K_S_TAB:  in ins_compl_prep()

1465 	case K_S_TAB:		mod = VTERM_MOD_SHIFT;  in term_convert_key()

/vim-8.2.3635/src/
H A D	keymap.h	`301 #define K_S_TAB TERMCAP2KEY('k', 'B') macro`
H A D	term.c	`340 {K_S_TAB, "\233Z"}, 635 {K_S_TAB, "\316\017"}, 947 {K_S_TAB, IF_EB("\033[Z", ESC_STR "[Z")},`
H A D	ex_getln.c	`1846 if (c != p_wc && c == K_S_TAB && xpc.xp_numfiles > 0) in getcmdline_int() 1951 if (c == K_S_TAB && KeyTyped) in getcmdline_int()`
H A D	misc2.c	`1101 return K_S_TAB; in simplify_key()`
H A D	insexpand.c	`1965 case K_S_TAB: in ins_compl_prep()`
H A D	edit.c	`1162 case K_S_TAB: // When not mapped, use like a normal TAB in edit()`
H A D	terminal.c	`1465 case K_S_TAB: mod = VTERM_MOD_SHIFT; in term_convert_key()`