usr.bin/pr/pr.c

73  *	output. By default, input is separated into 66-line pages, each
98 static char	nmchar;		/* line numbering append char */
99 static int	nmwd;		/* width of line number field */
200 	 * allocate line buffer
252 			 * loop by line
256 				 * input next line
265 				 * start of new line.
276 				 * if line bigger than buffer, get more
284 				 * whole line rcvd. reset tab proc. state
379 	 * pointer into page where last data per line is located
453 				 * loop by line
476 					 * input next line
500 					 * remember last char in line
572 					 * terminate line
603 			 * output each line
696 			 * loop by line
715 					 * input line
724 					 * if last line skip padding
741 				 * determine line length
749 				 * output line
863 	 * line buffer
886 		 * loop by line
893 				 * add line number to line
931 				 * if last ACTIVE column, done with line
948 			 * calculate data in line
957 			 * output line
984  * inln():	input a line of data (unlimited length lines supported)
990  *	cps:	column position 1st char in buffer (large line support)
992  *	mor:	set if more data in line (not truncated)
1021 				 * if more than this line, push back
1057 		 * entire line processed
1065 	 * line was larger than limit
1069 		 * throw away rest of line
1089  * otln():	output a line of data. (Supports unlimited length lines)
1096  *	mor:	output line not complete in this buf; more data to come.
1174 			 * if incomplete line, save position counts
1219 	 * process line end and double space as required
1381  * addnum():	adds the line number to the column
1387  *	line	line number
1396 addnum(char *buf, int wdth, int line)
1401 		*--pt = digs[line % 10];
1402 		line /= 10;
1403 	} while (line && (pt > buf));
1431 	 * posix is not clear if the header is subject to line length
1432 	 * restrictions. The specification for header line format
1453  *	incomp	was a '\n' missing from last line output
1460 		 * only pad with no headers when incomplete last line
1560 	 "          [-i[ch][gap]] [-l line] [-n[ch][width]] [-o offset]\n",err);