1 /* $NetBSD: soelim.c,v 1.3 1994/12/21 08:11:26 jtc Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1980, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)soelim.c 8.1 (Berkeley) 6/6/93"; 45 #endif 46 static char rcsid[] = "$NetBSD: soelim.c,v 1.3 1994/12/21 08:11:26 jtc Exp $"; 47 #endif /* not lint */ 48 49 #include <stdio.h> 50 /* 51 * soelim - a filter to process n/troff input eliminating .so's 52 * 53 * Author: Bill Joy UCB July 8, 1977 54 * 55 * This program eliminates .so's from a n/troff input stream. 56 * It can be used to prepare safe input for submission to the 57 * phototypesetter since the software supporting the operator 58 * doesn't let him do chdir. 59 * 60 * This is a kludge and the operator should be given the 61 * ability to do chdir. 62 * 63 * This program is more generally useful, it turns out, because 64 * the program tbl doesn't understand ".so" directives. 65 */ 66 #define STDIN_NAME "-" 67 68 main(argc, argv) 69 int argc; 70 char *argv[]; 71 { 72 73 argc--; 74 argv++; 75 if (argc == 0) { 76 (void)process(STDIN_NAME); 77 exit(0); 78 } 79 do { 80 (void)process(argv[0]); 81 argv++; 82 argc--; 83 } while (argc > 0); 84 exit(0); 85 } 86 87 int process(file) 88 char *file; 89 { 90 register char *cp; 91 register int c; 92 char fname[BUFSIZ]; 93 FILE *soee; 94 int isfile; 95 96 if (!strcmp(file, STDIN_NAME)) { 97 soee = stdin; 98 } else { 99 soee = fopen(file, "r"); 100 if (soee == NULL) { 101 perror(file); 102 return(-1); 103 } 104 } 105 for (;;) { 106 c = getc(soee); 107 if (c == EOF) 108 break; 109 if (c != '.') 110 goto simple; 111 c = getc(soee); 112 if (c != 's') { 113 putchar('.'); 114 goto simple; 115 } 116 c = getc(soee); 117 if (c != 'o') { 118 printf(".s"); 119 goto simple; 120 } 121 do 122 c = getc(soee); 123 while (c == ' ' || c == '\t'); 124 cp = fname; 125 isfile = 0; 126 for (;;) { 127 switch (c) { 128 129 case ' ': 130 case '\t': 131 case '\n': 132 case EOF: 133 goto donename; 134 135 default: 136 *cp++ = c; 137 c = getc(soee); 138 isfile++; 139 continue; 140 } 141 } 142 donename: 143 if (cp == fname) { 144 printf(".so"); 145 goto simple; 146 } 147 *cp = 0; 148 if (process(fname) < 0) 149 if (isfile) 150 printf(".so %s\n", fname); 151 continue; 152 simple: 153 if (c == EOF) 154 break; 155 putchar(c); 156 if (c != '\n') { 157 c = getc(soee); 158 goto simple; 159 } 160 } 161 if (soee != stdin) { 162 fclose(soee); 163 } 164 return(0); 165 } 166