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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved. 34 * @(#)soelim.c 8.1 (Berkeley) 6/6/93 35 * $FreeBSD: src/usr.bin/soelim/soelim.c,v 1.3.2.2 2001/07/30 10:16:46 dd Exp $ 36 * $DragonFly: src/usr.bin/soelim/soelim.c,v 1.5 2004/09/30 10:08:46 joerg Exp $ 37 */ 38 39 #include <err.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 /* 44 * soelim - a filter to process n/troff input eliminating .so's 45 * 46 * Author: Bill Joy UCB July 8, 1977 47 * 48 * This program eliminates .so's from a n/troff input stream. 49 * It can be used to prepare safe input for submission to the 50 * phototypesetter since the software supporting the operator 51 * doesn't let him do chdir. 52 * 53 * This is a kludge and the operator should be given the 54 * ability to do chdir. 55 * 56 * This program is more generally useful, it turns out, because 57 * the program tbl doesn't understand ".so" directives. 58 */ 59 60 #define STDIN_NAME "-" 61 62 static int process(const char *); 63 64 int 65 main(int argc, const char **argv) 66 { 67 int errs = 0; 68 69 if (argc == 1) { 70 argv[0] = STDIN_NAME; 71 } else { 72 argv++; 73 argc--; 74 } 75 76 while (--argc >= 0) { 77 errs += process(argv[0]); 78 argv++; 79 } 80 exit(errs != 0); 81 } 82 83 static int 84 process(const char *file) 85 { 86 char *cp; 87 int c; 88 char fname[BUFSIZ]; 89 FILE *soee; 90 int isfile; 91 92 if (!strcmp(file, STDIN_NAME)) { 93 soee = stdin; 94 } else { 95 soee = fopen(file, "r"); 96 if (soee == NULL) { 97 warn("%s", file); 98 return(-1); 99 } 100 } 101 for (;;) { 102 c = getc(soee); 103 if (c == EOF) 104 break; 105 if (c != '.') 106 goto simple; 107 c = getc(soee); 108 if (c != 's') { 109 putchar('.'); 110 goto simple; 111 } 112 c = getc(soee); 113 if (c != 'o') { 114 printf(".s"); 115 goto simple; 116 } 117 do 118 c = getc(soee); 119 while (c == ' ' || c == '\t'); 120 cp = fname; 121 isfile = 0; 122 for (;;) { 123 switch (c) { 124 125 case ' ': 126 case '\t': 127 case '\n': 128 case EOF: 129 goto donename; 130 131 default: 132 *cp++ = c; 133 c = getc(soee); 134 isfile++; 135 continue; 136 } 137 } 138 donename: 139 if (cp == fname) { 140 printf(".so"); 141 goto simple; 142 } 143 *cp = 0; 144 if (process(fname) < 0) 145 if (isfile) 146 printf(".so %s\n", fname); 147 continue; 148 simple: 149 if (c == EOF) 150 break; 151 putchar(c); 152 if (c != '\n') { 153 c = getc(soee); 154 goto simple; 155 } 156 } 157 if (soee != stdin) { 158 fclose(soee); 159 } 160 return(0); 161 } 162