nvi/ex/ex_txt.c

61 	TEXT ait, *ntp, *tp;
75 		tp = TAILQ_FIRST(tiqh);
76 		if (TAILQ_NEXT(tp, q) != NULL || tp->lb_len < 32) {
80 		tp->len = 0;
82 newtp:		if ((tp = text_init(sp, NULL, 0, 32)) == NULL)
84 		TAILQ_INSERT_HEAD(tiqh, tp, q);
88 	tp->lno = sp->lno + 1;
108 			if (v_txt_auto(sp, sp->lno, NULL, 0, tp))
111 		txt_prompt(sp, tp, prompt, flags);
146 		 * (Use tp->len, ignore overwrite and non-printable chars.)
148 		BINC_GOTOW(sp, tp->lb, tp->lb_len, tp->len + 1);
171 			    tp->len != 0 && tp->lb[tp->len - 1] == '\\')
181 				tp->lb[tp->len] = '\0';
189 			if (LF_ISSET(TXT_DOTTERM) && tp->len == tp->ai + 1 &&
190 			    tp->lb[tp->len - 1] == '.') {
191 notlast:			TAILQ_REMOVE(tiqh, tp, q);
192 				text_free(tp);
199 			ntp->lno = tp->lno + 1;
205 			 * using the current tp structure, use the cursor as
218 					    OOBLNO, tp, tp->len, ntp))
228 			tp = ntp;
229 			TAILQ_INSERT_TAIL(tiqh, tp, q);
232 			if (tp->len <= tp->ai && LF_ISSET(TXT_AUTOINDENT))
236 			if (tp->len <= tp->ai && LF_ISSET(TXT_AUTOINDENT))
248 				for (cnt = 0; cnt < tp->len; ++cnt)
249 					if (!isblank(tp->lb[cnt]))
251 				if (cnt == tp->len) {
252 					tp->len = 1;
253 					tp->lb[0] = ev.e_c;
254 					tp->lb[1] = '\0';
284 			if (!LF_ISSET(TXT_AUTOINDENT) || tp->len == 0)
288 				if (tp->len > tp->ai + 1)
294 				BINC_GOTOW(sp, ait.lb, ait.lb_len, tp->ai);
295 				MEMCPY(ait.lb, tp->lb, tp->ai);
296 				ait.ai = ait.len = tp->ai;
302 				if (tp->len > tp->ai + 1)
307 				tp->ai = tp->len = 0;
310 				if (tp->len > tp->ai)
313 				if (txt_dent(sp, tp))
322 			txt_prompt(sp, tp, prompt, flags);
336 			tp->lb[tp->len++] = ev.e_c;
356 txt_prompt(SCR *sp, TEXT *tp, ARG_CHAR_T prompt, u_int32_t flags)
364 		(void)ex_printf(sp, "%6lu  ", (u_long)tp->lno);
368 		(void)ex_printf(sp, WVS, (int)tp->ai, tp->lb);
380 txt_dent(SCR *sp, TEXT *tp)
389 	for (off = scno = 0; off < tp->len; ++off)
390 		if (tp->lb[off] == '\t')
414 	BINC_RETW(sp, tp->lb, tp->lb_len, tabs + spaces + 1);
417 	tp->ai = tabs + spaces;
420 	for (tp->len = 0; tabs > 0; --tabs)
421 		tp->lb[tp->len++] = '\t';
423 		tp->lb[tp->len++] = ' ';