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- /* Copyright (c) 1994 Burra Gopal, Udi Manber. All Rights Reserved. */
-
- /*
- * main_cast.c : uses functions in hash.c and cast.c to implement "cast".
- */
-
- #include "defs.h"
-
- extern char **environ;
- usage(progname)
- char *progname;
- {
- fprintf(stderr, "\nThis is cast version %s. Copyright (c) %s, University of Arizona.\n\n", GLIMPSE_VERSION, GLIMPSE_DATE);
- fprintf(stderr, "usage: %s [-help] [-F] [-H dir] [-V] [-d] [-e] [-o] [-r] [-s] [-y] sourcefiles\n", progname);
- fprintf(stderr, "summary of options (for a more detailed version, see 'man cast'):\n");
- fprintf(stderr, "-help: output this menu\n");
- fprintf(stderr, "-d: DO NOT delete sourcefiles after compress\n");
- fprintf(stderr, "-e: DO NOT compress for easy search\n");
- fprintf(stderr, "-o: DO NOT overwrite the existing compressed file (if any)\n");
- fprintf(stderr, "-r: compress recursively\n");
- fprintf(stderr, "-s: proceed silently and output the names of the compressible files\n");
- fprintf(stderr, "-y: DO NOT prompt and always overwrite when used without -o\n");
- fprintf(stderr, "-F: expect NAMES of files on stdin instead of data if there are no sourcefiles\n");
- fprintf(stderr, "-H dir: the directory for dictionaries is 'dir' (default ~)\n");
- fprintf(stderr, "\n");
- exit(1);
- }
-
- main(argc, argv)
- int argc;
- char *argv[];
- {
- char **filev;
- int filec;
- int i; /* counter on argc, and later, filec */
- char hash_file[MAX_LINE_LEN];
- char freq_file[MAX_LINE_LEN];
- char comp_dir[MAX_LINE_LEN];
- char name[MAX_LINE_LEN];
- char outname[MAX_LINE_LEN];
- char *home;
- int FLAGS;
-
- filev = (char **)malloc(sizeof(char *) * argc);
- memset(filev, '\0', sizeof(char *)*argc);
- filec = 0;
- comp_dir[0] = '\0';
- hash_file[0] = '\0';
- freq_file[0] = '\0';
- FLAGS = 0;
- FLAGS |= TC_ERRORMSGS | TC_REMOVE | TC_OVERWRITE | TC_EASYSEARCH;
-
- /* Look at options */
- i=1;
- while (i < argc) {
- if (filec == 0 && !strcmp(argv[i], "-d")) {
- FLAGS &= ~TC_REMOVE;
- i ++;
- }
- else if (filec == 0 && !strcmp(argv[i], "-V")) {
- printf("\nThis is cast version %s, %s.\n\n", CAST_VERSION, CAST_DATE);
- return 0;
- }
- else if (filec == 0 && !strcmp(argv[i], "-e")) {
- FLAGS &= ~TC_EASYSEARCH;
- i ++;
- }
- if (filec == 0 && !strcmp(argv[i], "-help")) {
- return usage(argv[0]);
- }
- else if (filec == 0 && !strcmp(argv[i], "-o")) {
- FLAGS &= ~TC_OVERWRITE;
- i ++;
- }
- else if (filec == 0 && !strcmp(argv[i], "-r")) {
- FLAGS |= TC_RECURSIVE;
- i ++;
- }
- else if (filec == 0 && !strcmp(argv[i], "-s")) {
- FLAGS |= TC_SILENT;
- i ++;
- }
- else if (filec == 0 && !strcmp(argv[i], "-y")) {
- FLAGS |= TC_NOPROMPT;
- i ++;
- }
- else if(filec == 0 && !strcmp(argv[1], "-F")) {
- FLAGS |= TC_FILENAMESONSTDIN;
- i ++;
- }
- else if (filec == 0 && !strcmp(argv[i], "-H")) {
- if (i + 1 >= argc) {
- fprintf(stderr, "%s: directory not specified after -H\n", argv[0]);
- return usage(argv[0]);
- }
- strcpy(comp_dir, argv[i+1]);
- i+=2;
- }
- else {
- filev[filec++] = argv[i++];
- }
- }
-
- if (comp_dir[0] == '\0') {
- if ((home = (char *)getenv("HOME")) == NULL) {
- getcwd(comp_dir, MAXNAME-1);
- fprintf(stderr, "using working-directory '%s' to locate index\n", comp_dir);
- }
- else strncpy(comp_dir, home, MAXNAME);
- }
- strcpy(hash_file, comp_dir);
- strcat(hash_file, "/");
- strcat(hash_file, DEF_HASH_FILE);
- strcpy(freq_file, comp_dir);
- strcat(freq_file, "/");
- strcat(freq_file, DEF_FREQ_FILE);
- if (!initialize_tcompress(hash_file, freq_file, FLAGS)) exit(2);
-
- if (FLAGS & TC_SILENT) FLAGS &= ~TC_ERRORMSGS;
-
- /* now compress each file in filev array: if no files specified, compress stdin and put it on stdout */
- if (filec == 0) {
- if (FLAGS & TC_FILENAMESONSTDIN) {
- while (fgets(name, MAX_LINE_LEN, stdin) == name) {
- tcompress_file(name, outname, FLAGS);
- }
- }
- else tcompress(stdin, -1, stdout, -1, FLAGS);
- }
- else for (i=0; i<filec; i++) {
- strcpy(name, filev[i]);
- tcompress_file(name, outname, FLAGS);
- }
- return 0;
- }
-