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