1 /* 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved. 30 * @(#)soelim.c 8.1 (Berkeley) 6/6/93 31 * $FreeBSD: src/usr.bin/soelim/soelim.c,v 1.3.2.2 2001/07/30 10:16:46 dd Exp $ 32 * $DragonFly: src/usr.bin/soelim/soelim.c,v 1.5 2004/09/30 10:08:46 joerg Exp $ 33 */ 34 35 #include <err.h> 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <string.h> 39 /* 40 * soelim - a filter to process n/troff input eliminating .so's 41 * 42 * Author: Bill Joy UCB July 8, 1977 43 * 44 * This program eliminates .so's from a n/troff input stream. 45 * It can be used to prepare safe input for submission to the 46 * phototypesetter since the software supporting the operator 47 * doesn't let him do chdir. 48 * 49 * This is a kludge and the operator should be given the 50 * ability to do chdir. 51 * 52 * This program is more generally useful, it turns out, because 53 * the program tbl doesn't understand ".so" directives. 54 */ 55 56 #define STDIN_NAME "-" 57 58 static int process(const char *); 59 60 int 61 main(int argc, const char **argv) 62 { 63 int errs = 0; 64 65 if (argc == 1) { 66 argv[0] = STDIN_NAME; 67 } else { 68 argv++; 69 argc--; 70 } 71 72 while (--argc >= 0) { 73 errs += process(argv[0]); 74 argv++; 75 } 76 exit(errs != 0); 77 } 78 79 static int 80 process(const char *file) 81 { 82 char *cp; 83 int c; 84 char fname[BUFSIZ]; 85 FILE *soee; 86 int isfile; 87 88 if (!strcmp(file, STDIN_NAME)) { 89 soee = stdin; 90 } else { 91 soee = fopen(file, "r"); 92 if (soee == NULL) { 93 warn("%s", file); 94 return(-1); 95 } 96 } 97 for (;;) { 98 c = getc(soee); 99 if (c == EOF) 100 break; 101 if (c != '.') 102 goto simple; 103 c = getc(soee); 104 if (c != 's') { 105 putchar('.'); 106 goto simple; 107 } 108 c = getc(soee); 109 if (c != 'o') { 110 printf(".s"); 111 goto simple; 112 } 113 do 114 c = getc(soee); 115 while (c == ' ' || c == '\t'); 116 cp = fname; 117 isfile = 0; 118 for (;;) { 119 switch (c) { 120 121 case ' ': 122 case '\t': 123 case '\n': 124 case EOF: 125 goto donename; 126 127 default: 128 *cp++ = c; 129 c = getc(soee); 130 isfile++; 131 continue; 132 } 133 } 134 donename: 135 if (cp == fname) { 136 printf(".so"); 137 goto simple; 138 } 139 *cp = 0; 140 if (process(fname) < 0) 141 if (isfile) 142 printf(".so %s\n", fname); 143 continue; 144 simple: 145 if (c == EOF) 146 break; 147 putchar(c); 148 if (c != '\n') { 149 c = getc(soee); 150 goto simple; 151 } 152 } 153 if (soee != stdin) { 154 fclose(soee); 155 } 156 return(0); 157 } 158