Annotation of mandoc/soelim.c, Revision 1.1
1.1 ! schwarze 1: /*-
! 2: * Copyright (c) 2014 Baptiste Daroussin <bapt@FreeBSD.org>
! 3: * 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: * in this position and unchanged.
! 11: * 2. Redistributions in binary form must reproduce the above copyright
! 12: * notice, this list of conditions and the following disclaimer in the
! 13: * documentation and/or other materials provided with the distribution.
! 14: *
! 15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
! 16: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 17: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 18: * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
! 19: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 20: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 21: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 22: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 23: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 24: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 25: */
! 26:
! 27: #include <sys/cdefs.h>
! 28: __FBSDID("$FreeBSD$");
! 29:
! 30: #include <sys/param.h>
! 31:
! 32: #define _WITH_GETLINE
! 33: #include <stdio.h>
! 34: #include <unistd.h>
! 35: #include <stdlib.h>
! 36: #include <stdbool.h>
! 37: #include <string.h>
! 38: #include <stringlist.h>
! 39: #include <err.h>
! 40: #include <ctype.h>
! 41:
! 42: #define C_OPTION 0x1
! 43:
! 44: static StringList *includes;
! 45:
! 46: static void
! 47: usage(void)
! 48: {
! 49:
! 50: fprintf(stderr, "usage: soelim [-Crtv] [-I dir] [files]\n");
! 51:
! 52: exit(EXIT_FAILURE);
! 53: }
! 54:
! 55: static FILE *
! 56: soelim_fopen(const char *name)
! 57: {
! 58: FILE *f;
! 59: char path[MAXPATHLEN];
! 60: size_t i;
! 61:
! 62: if (strcmp(name, "-") == 0)
! 63: return (stdin);
! 64:
! 65: if ((f = fopen(name, "r")) != NULL)
! 66: return (f);
! 67:
! 68: if (*name == '/') {
! 69: warn("can't open '%s'", name);
! 70: return (NULL);
! 71: }
! 72:
! 73: for (i = 0; i < includes->sl_cur; i++) {
! 74: snprintf(path, sizeof(path), "%s/%s", includes->sl_str[i],
! 75: name);
! 76: if ((f = fopen(path, "r")) != NULL)
! 77: return (f);
! 78: }
! 79:
! 80: warn("can't open '%s'", name);
! 81:
! 82: return (f);
! 83: }
! 84:
! 85: static int
! 86: soelim_file(FILE *f, int flag)
! 87: {
! 88: char *line = NULL;
! 89: char *walk, *cp;
! 90: size_t linecap = 0;
! 91: ssize_t linelen;
! 92:
! 93: if (f == NULL)
! 94: return (1);
! 95:
! 96: while ((linelen = getline(&line, &linecap, f)) > 0) {
! 97: if (strncmp(line, ".so", 3) != 0) {
! 98: printf("%s", line);
! 99: continue;
! 100: }
! 101:
! 102: walk = line + 3;
! 103: if (!isspace(*walk) && ((flag & C_OPTION) == 0)) {
! 104: printf("%s", line);
! 105: continue;
! 106: }
! 107:
! 108: while (isspace(*walk))
! 109: walk++;
! 110:
! 111: cp = walk;
! 112: while (*cp != '\0' && !isspace(*cp))
! 113: cp++;
! 114: *cp = 0;
! 115: if (cp < line + linelen)
! 116: cp++;
! 117:
! 118: if (*walk == '\0') {
! 119: printf("%s", line);
! 120: continue;
! 121: }
! 122: if (soelim_file(soelim_fopen(walk), flag) == 1) {
! 123: free(line);
! 124: return (1);
! 125: }
! 126: if (*cp != '\0')
! 127: printf("%s", cp);
! 128: }
! 129:
! 130: free(line);
! 131: fclose(f);
! 132:
! 133: return (0);
! 134: }
! 135:
! 136: int
! 137: main(int argc, char **argv)
! 138: {
! 139: int ch, i;
! 140: int ret = 0;
! 141: int flags = 0;
! 142:
! 143: includes = sl_init();
! 144: if (includes == NULL)
! 145: err(EXIT_FAILURE, "sl_init()");
! 146:
! 147: while ((ch = getopt(argc, argv, "CrtvI:")) != -1) {
! 148: switch (ch) {
! 149: case 'C':
! 150: flags |= C_OPTION;
! 151: break;
! 152: case 'r':
! 153: case 'v':
! 154: case 't':
! 155: /* stub compatibility with groff's soelim */
! 156: break;
! 157: case 'I':
! 158: sl_add(includes, optarg);
! 159: break;
! 160: default:
! 161: sl_free(includes, 0);
! 162: usage();
! 163: }
! 164: }
! 165:
! 166: argc -= optind;
! 167: argv += optind;
! 168:
! 169: if (argc == 0)
! 170: ret = soelim_file(stdin, flags);
! 171:
! 172: for (i = 0; i < argc; i++)
! 173: ret = soelim_file(soelim_fopen(argv[i]), flags);
! 174:
! 175: sl_free(includes, 0);
! 176:
! 177: return (ret);
! 178: }
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