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 1.3 2003/10/04 20:36:51 hmp 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 #define STDIN_NAME "-" 60 61 int process(char *); 62 63 int 64 main(int argc, char **argv) 65 { 66 67 argc--; 68 argv++; 69 if (argc == 0) { 70 (void)process(STDIN_NAME); 71 exit(0); 72 } 73 do { 74 (void)process(argv[0]); 75 argv++; 76 argc--; 77 } while (argc > 0); 78 exit(0); 79 } 80 81 int 82 process(char *file) 83 { 84 register char *cp; 85 register int c; 86 char fname[BUFSIZ]; 87 FILE *soee; 88 int isfile; 89 90 if (!strcmp(file, STDIN_NAME)) { 91 soee = stdin; 92 } else { 93 soee = fopen(file, "r"); 94 if (soee == NULL) { 95 warn("%s", file); 96 return(-1); 97 } 98 } 99 for (;;) { 100 c = getc(soee); 101 if (c == EOF) 102 break; 103 if (c != '.') 104 goto simple; 105 c = getc(soee); 106 if (c != 's') { 107 putchar('.'); 108 goto simple; 109 } 110 c = getc(soee); 111 if (c != 'o') { 112 printf(".s"); 113 goto simple; 114 } 115 do 116 c = getc(soee); 117 while (c == ' ' || c == '\t'); 118 cp = fname; 119 isfile = 0; 120 for (;;) { 121 switch (c) { 122 123 case ' ': 124 case '\t': 125 case '\n': 126 case EOF: 127 goto donename; 128 129 default: 130 *cp++ = c; 131 c = getc(soee); 132 isfile++; 133 continue; 134 } 135 } 136 donename: 137 if (cp == fname) { 138 printf(".so"); 139 goto simple; 140 } 141 *cp = 0; 142 if (process(fname) < 0) 143 if (isfile) 144 printf(".so %s\n", fname); 145 continue; 146 simple: 147 if (c == EOF) 148 break; 149 putchar(c); 150 if (c != '\n') { 151 c = getc(soee); 152 goto simple; 153 } 154 } 155 if (soee != stdin) { 156 fclose(soee); 157 } 158 return(0); 159 } 160