64 	out.dbcnt = in.dbcnt;  in def()
66 	if (in.dbcnt >= out.dbsz) {  in def()
76 		in.dbcnt = out.dbcnt;  in def()
84 	if (in.dbcnt)  in def_close()
85 		out.dbcnt = in.dbcnt;  in def_close()
114 			in.dbcnt = 0;  in block()
120 		in.dbcnt = cnt - 1;  in block()
129 	for (inp = in.dbp - in.dbcnt, outp = out.dbp; in.dbcnt;) {  in block()
130 		maxlen = MIN(cbsz, (size_t)in.dbcnt);  in block()
143 		if (ch != '\n' && (size_t)in.dbcnt < cbsz) {  in block()
144 			(void)memmove(in.db, in.dbp - in.dbcnt, in.dbcnt);  in block()
149 		in.dbcnt -= cnt;  in block()
151 			--in.dbcnt;  in block()
161 			if (!in.dbcnt || *inp != '\n')  in block()
165 			for (; in.dbcnt && *inp++ != '\n'; --in.dbcnt)  in block()
167 			if (!in.dbcnt)  in block()
170 				--in.dbcnt;  in block()
175 		if ((out.dbcnt += cbsz) >= out.dbsz)  in block()
179 	in.dbp = in.db + in.dbcnt;  in block()
193 	if (in.dbcnt) {  in block_close()
195 		(void)memmove(out.dbp, in.dbp - in.dbcnt, in.dbcnt);  in block_close()
196 		(void)memset(out.dbp + in.dbcnt, ctab ? ctab[' '] : ' ',  in block_close()
197 		    cbsz - in.dbcnt);  in block_close()
198 		out.dbcnt += cbsz;  in block_close()
225 	for (inp = in.db; (size_t)in.dbcnt >= cbsz; inp += cbsz, in.dbcnt -= cbsz) {  in unblock()
232 			out.dbcnt += cnt;  in unblock()
235 		if (++out.dbcnt >= out.dbsz)  in unblock()
238 	if (in.dbcnt)  in unblock()
239 		(void)memmove(in.db, in.dbp - in.dbcnt, in.dbcnt);  in unblock()
240 	in.dbp = in.db + in.dbcnt;  in unblock()
249 	if (in.dbcnt) {  in unblock_close()
251 		for (t = in.db + in.dbcnt - 1; t >= in.db && *t == ' '; --t)  in unblock_close()
257 			out.dbcnt += cnt;  in unblock_close()
259 		++out.dbcnt;  in unblock_close()