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 /* 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 int process __P((char *)); 69 70 int 71 main(argc, argv) 72 int argc; 73 char *argv[]; 74 { 75 76 argc--; 77 argv++; 78 if (argc == 0) { 79 (void)process(STDIN_NAME); 80 exit(0); 81 } 82 do { 83 (void)process(argv[0]); 84 argv++; 85 argc--; 86 } while (argc > 0); 87 exit(0); 88 } 89 90 int 91 process(file) 92 char *file; 93 { 94 register char *cp; 95 register int c; 96 char fname[BUFSIZ]; 97 FILE *soee; 98 int isfile; 99 100 if (!strcmp(file, STDIN_NAME)) { 101 soee = stdin; 102 } else { 103 soee = fopen(file, "r"); 104 if (soee == NULL) { 105 warn(file); 106 return(-1); 107 } 108 } 109 for (;;) { 110 c = getc(soee); 111 if (c == EOF) 112 break; 113 if (c != '.') 114 goto simple; 115 c = getc(soee); 116 if (c != 's') { 117 putchar('.'); 118 goto simple; 119 } 120 c = getc(soee); 121 if (c != 'o') { 122 printf(".s"); 123 goto simple; 124 } 125 do 126 c = getc(soee); 127 while (c == ' ' || c == '\t'); 128 cp = fname; 129 isfile = 0; 130 for (;;) { 131 switch (c) { 132 133 case ' ': 134 case '\t': 135 case '\n': 136 case EOF: 137 goto donename; 138 139 default: 140 *cp++ = c; 141 c = getc(soee); 142 isfile++; 143 continue; 144 } 145 } 146 donename: 147 if (cp == fname) { 148 printf(".so"); 149 goto simple; 150 } 151 *cp = 0; 152 if (process(fname) < 0) 153 if (isfile) 154 printf(".so %s\n", fname); 155 continue; 156 simple: 157 if (c == EOF) 158 break; 159 putchar(c); 160 if (c != '\n') { 161 c = getc(soee); 162 goto simple; 163 } 164 } 165 if (soee != stdin) { 166 fclose(soee); 167 } 168 return(0); 169 } 170