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 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1980, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)soelim.c 8.1 (Berkeley) 6/6/93"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 #include <err.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 /* 53 * soelim - a filter to process n/troff input eliminating .so's 54 * 55 * Author: Bill Joy UCB July 8, 1977 56 * 57 * This program eliminates .so's from a n/troff input stream. 58 * It can be used to prepare safe input for submission to the 59 * phototypesetter since the software supporting the operator 60 * doesn't let him do chdir. 61 * 62 * This is a kludge and the operator should be given the 63 * ability to do chdir. 64 * 65 * This program is more generally useful, it turns out, because 66 * the program tbl doesn't understand ".so" directives. 67 */ 68 #define STDIN_NAME "-" 69 70 int process(const char *); 71 72 int 73 main(argc, argv) 74 int argc; 75 char *argv[]; 76 { 77 78 argc--; 79 argv++; 80 if (argc == 0) { 81 (void)process(STDIN_NAME); 82 exit(0); 83 } 84 do { 85 (void)process(argv[0]); 86 argv++; 87 argc--; 88 } while (argc > 0); 89 exit(0); 90 } 91 92 int 93 process(file) 94 const char *file; 95 { 96 register char *cp; 97 register int c; 98 char fname[BUFSIZ]; 99 FILE *soee; 100 int isfile; 101 102 if (!strcmp(file, STDIN_NAME)) { 103 soee = stdin; 104 } else { 105 soee = fopen(file, "r"); 106 if (soee == NULL) { 107 warn("%s", file); 108 return(-1); 109 } 110 } 111 for (;;) { 112 c = getc(soee); 113 if (c == EOF) 114 break; 115 if (c != '.') 116 goto simple; 117 c = getc(soee); 118 if (c != 's') { 119 putchar('.'); 120 goto simple; 121 } 122 c = getc(soee); 123 if (c != 'o') { 124 printf(".s"); 125 goto simple; 126 } 127 do 128 c = getc(soee); 129 while (c == ' ' || c == '\t'); 130 cp = fname; 131 isfile = 0; 132 for (;;) { 133 switch (c) { 134 135 case ' ': 136 case '\t': 137 case '\n': 138 case EOF: 139 goto donename; 140 141 default: 142 *cp++ = c; 143 c = getc(soee); 144 isfile++; 145 continue; 146 } 147 } 148 donename: 149 if (cp == fname) { 150 printf(".so"); 151 goto simple; 152 } 153 *cp = 0; 154 if (process(fname) < 0) 155 if (isfile) 156 printf(".so %s\n", fname); 157 continue; 158 simple: 159 if (c == EOF) 160 break; 161 putchar(c); 162 if (c != '\n') { 163 c = getc(soee); 164 goto simple; 165 } 166 } 167 if (soee != stdin) { 168 fclose(soee); 169 } 170 return(0); 171 } 172