1 /*- 2 * Copyright (c) 1992 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rodney Ruddock of the University of Guelph. 7 * 8 * %sccs.include.redist.c% 9 */ 10 11 #ifndef lint 12 static char sccsid[] = "@(#)rol.c 5.3 (Berkeley) 02/28/93"; 13 #endif /* not lint */ 14 15 #include <sys/types.h> 16 17 #include <regex.h> 18 #include <setjmp.h> 19 #include <stdio.h> 20 #include <string.h> 21 22 #ifdef DBI 23 #include <db.h> 24 #endif 25 26 #include "ed.h" 27 #include "extern.h" 28 29 /* 30 * After the command check the rest of the line to see nothing illegal 31 * is following. Any single instance of a printsfx suffix is the only 32 * legal thing to follow ( that is, a 'l', 'n', or 'p'). If a suffix 33 * occurs the execution of that suffix occurs back in the cmd_loop 34 * function after the command that called this function finishes 35 * successfully. 36 */ 37 int 38 rol(inputt, errnum) 39 FILE *inputt; 40 int *errnum; 41 { 42 ss = getc(inputt); 43 printsfx = 0; 44 45 /* Only one of the suffix is allowed. */ 46 if (ss == 'p') 47 printsfx = 1; 48 else 49 if (ss == 'n') 50 printsfx = 2; 51 else 52 if (ss == 'l') 53 printsfx = 4; 54 else 55 ungetc(ss, inputt); 56 57 for (;;) { 58 ss = getc(inputt); 59 if ((ss != ' ') && (ss != '\n') && (ss != EOF)) { 60 *errnum = -1; 61 strcpy(help_msg, "illegal command option"); 62 return (1); 63 } 64 if ((ss == '\n') || (ss == EOF)) 65 break; 66 } 67 68 /* Rest-of-line was okay. */ 69 return (0); 70 } 71