perl 5.000perl-5.000

[editor's note: this commit combines approximate 4 months of furious
releases of Andy Dougherty and Larry Wall - see pod/perlhist.pod for
details.  Andy notes that;
 
Alas neither my "Irwin AccuTrack" nor my DC 600A quarter-inch cartridge 
backup tapes from that era seem to be readable anymore.  I guess 13 years 
exceeds the shelf life for that backup technology :-(.
]

1 files changed, 435 insertions, 0 deletions

diff --git a/ext/SDBM_File/sdbm/dbe.c b/ext/SDBM_File/sdbm/dbe.c
new file mode 100644
index 0000000000..2a306f276e
--- /dev/null
+++ b/ext/SDBM_File/sdbm/dbe.c
@@ -0,0 +1,435 @@
+#include <stdio.h>
+#ifndef VMS
+#include <sys/file.h>
+#include <ndbm.h>
+#else
+#include "file.h"
+#include "ndbm.h"
+#endif
+#include <ctype.h>
+
+/***************************************************************************\
+**                                                                         **
+**   Function name: getopt()                                               **
+**   Author:        Henry Spencer, UofT                                    **
+**   Coding date:   84/04/28                                               **
+**                                                                         **
+**   Description:                                                          **
+**                                                                         **
+**   Parses argv[] for arguments.                                          **
+**   Works with Whitesmith's C compiler.                                   **
+**                                                                         **
+**   Inputs   - The number of arguments                                    **
+**            - The base address of the array of arguments                 **
+**            - A string listing the valid options (':' indicates an       **
+**              argument to the preceding option is required, a ';'        **
+**              indicates an argument to the preceding option is optional) **
+**                                                                         **
+**   Outputs  - Returns the next option character,                         **
+**              '?' for non '-' arguments                                  **
+**              or ':' when there is no more arguments.                    **
+**                                                                         **
+**   Side Effects + The argument to an option is pointed to by 'optarg'    **
+**                                                                         **
+*****************************************************************************
+**                                                                         **
+**   REVISION HISTORY:                                                     **
+**                                                                         **
+**     DATE           NAME                        DESCRIPTION              **
+**   YY/MM/DD  ------------------   ------------------------------------   **
+**   88/10/20  Janick Bergeron      Returns '?' on unamed arguments        **
+**                                  returns '!' on unknown options         **
+**                                  and 'EOF' only when exhausted.         **
+**   88/11/18  Janick Bergeron      Return ':' when no more arguments      **
+**   89/08/11  Janick Bergeron      Optional optarg when ';' in optstring  **
+**                                                                         **
+\***************************************************************************/
+
+char *optarg;			       /* Global argument pointer. */
+
+#ifdef VMS
+#define index  strchr
+#endif
+
+char
+getopt(argc, argv, optstring)
+int argc;
+char **argv;
+char *optstring;
+{
+	register int c;
+	register char *place;
+	extern char *index();
+	static int optind = 0;
+	static char *scan = NULL;
+
+	optarg = NULL;
+
+	if (scan == NULL || *scan == '\0') {
+
+		if (optind == 0)
+			optind++;
+		if (optind >= argc)
+			return ':';
+
+		optarg = place = argv[optind++];
+		if (place[0] != '-' || place[1] == '\0')
+			return '?';
+		if (place[1] == '-' && place[2] == '\0')
+			return '?';
+		scan = place + 1;
+	}
+
+	c = *scan++;
+	place = index(optstring, c);
+	if (place == NULL || c == ':' || c == ';') {
+
+		(void) fprintf(stderr, "%s: unknown option %c\n", argv[0], c);
+		scan = NULL;
+		return '!';
+	}
+	if (*++place == ':') {
+
+		if (*scan != '\0') {
+
+			optarg = scan;
+			scan = NULL;
+
+		}
+		else {
+
+			if (optind >= argc) {
+
+				(void) fprintf(stderr, "%s: %c requires an argument\n",
+					       argv[0], c);
+				return '!';
+			}
+			optarg = argv[optind];
+			optind++;
+		}
+	}
+	else if (*place == ';') {
+
+		if (*scan != '\0') {
+
+			optarg = scan;
+			scan = NULL;
+
+		}
+		else {
+
+			if (optind >= argc || *argv[optind] == '-')
+				optarg = NULL;
+			else {
+				optarg = argv[optind];
+				optind++;
+			}
+		}
+	}
+	return c;
+}
+
+
+void
+print_datum(db)
+datum db;
+{
+	int i;
+
+	putchar('"');
+	for (i = 0; i < db.dsize; i++) {
+		if (isprint(db.dptr[i]))
+			putchar(db.dptr[i]);
+		else {
+			putchar('\\');
+			putchar('0' + ((db.dptr[i] >> 6) & 0x07));
+			putchar('0' + ((db.dptr[i] >> 3) & 0x07));
+			putchar('0' + (db.dptr[i] & 0x07));
+		}
+	}
+	putchar('"');
+}
+
+
+datum
+read_datum(s)
+char *s;
+{
+	datum db;
+	char *p;
+	int i;
+
+	db.dsize = 0;
+	db.dptr = (char *) malloc(strlen(s) * sizeof(char));
+	for (p = db.dptr; *s != '\0'; p++, db.dsize++, s++) {
+		if (*s == '\\') {
+			if (*++s == 'n')
+				*p = '\n';
+			else if (*s == 'r')
+				*p = '\r';
+			else if (*s == 'f')
+				*p = '\f';
+			else if (*s == 't')
+				*p = '\t';
+			else if (isdigit(*s) && isdigit(*(s + 1)) && isdigit(*(s + 2))) {
+				i = (*s++ - '0') << 6;
+				i |= (*s++ - '0') << 3;
+				i |= *s - '0';
+				*p = i;
+			}
+			else if (*s == '0')
+				*p = '\0';
+			else
+				*p = *s;
+		}
+		else
+			*p = *s;
+	}
+
+	return db;
+}
+
+
+char *
+key2s(db)
+datum db;
+{
+	char *buf;
+	char *p1, *p2;
+
+	buf = (char *) malloc((db.dsize + 1) * sizeof(char));
+	for (p1 = buf, p2 = db.dptr; *p2 != '\0'; *p1++ = *p2++);
+	*p1 = '\0';
+	return buf;
+}
+
+
+main(argc, argv)
+int argc;
+char **argv;
+{
+	typedef enum {
+		YOW, FETCH, STORE, DELETE, SCAN, REGEXP
+	} commands;
+	char opt;
+	int flags;
+	int giveusage = 0;
+	int verbose = 0;
+	commands what = YOW;
+	char *comarg[3];
+	int st_flag = DBM_INSERT;
+	int argn;
+	DBM *db;
+	datum key;
+	datum content;
+
+	flags = O_RDWR;
+	argn = 0;
+
+	while ((opt = getopt(argc, argv, "acdfFm:rstvx")) != ':') {
+		switch (opt) {
+		case 'a':
+			what = SCAN;
+			break;
+		case 'c':
+			flags |= O_CREAT;
+			break;
+		case 'd':
+			what = DELETE;
+			break;
+		case 'f':
+			what = FETCH;
+			break;
+		case 'F':
+			what = REGEXP;
+			break;
+		case 'm':
+			flags &= ~(000007);
+			if (strcmp(optarg, "r") == 0)
+				flags |= O_RDONLY;
+			else if (strcmp(optarg, "w") == 0)
+				flags |= O_WRONLY;
+			else if (strcmp(optarg, "rw") == 0)
+				flags |= O_RDWR;
+			else {
+				fprintf(stderr, "Invalid mode: \"%s\"\n", optarg);
+				giveusage = 1;
+			}
+			break;
+		case 'r':
+			st_flag = DBM_REPLACE;
+			break;
+		case 's':
+			what = STORE;
+			break;
+		case 't':
+			flags |= O_TRUNC;
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		case 'x':
+			flags |= O_EXCL;
+			break;
+		case '!':
+			giveusage = 1;
+			break;
+		case '?':
+			if (argn < 3)
+				comarg[argn++] = optarg;
+			else {
+				fprintf(stderr, "Too many arguments.\n");
+				giveusage = 1;
+			}
+			break;
+		}
+	}
+
+	if (giveusage | what == YOW | argn < 1) {
+		fprintf(stderr, "Usage: %s databse [-m r|w|rw] [-crtx] -a|-d|-f|-F|-s [key [content]]\n", argv[0]);
+		exit(-1);
+	}
+
+	if ((db = dbm_open(comarg[0], flags, 0777)) == NULL) {
+		fprintf(stderr, "Error opening database \"%s\"\n", comarg[0]);
+		exit(-1);
+	}
+
+	if (argn > 1)
+		key = read_datum(comarg[1]);
+	if (argn > 2)
+		content = read_datum(comarg[2]);
+
+	switch (what) {
+
+	case SCAN:
+		key = dbm_firstkey(db);
+		if (dbm_error(db)) {
+			fprintf(stderr, "Error when fetching first key\n");
+			goto db_exit;
+		}
+		while (key.dptr != NULL) {
+			content = dbm_fetch(db, key);
+			if (dbm_error(db)) {
+				fprintf(stderr, "Error when fetching ");
+				print_datum(key);
+				printf("\n");
+				goto db_exit;
+			}
+			print_datum(key);
+			printf(": ");
+			print_datum(content);
+			printf("\n");
+			if (dbm_error(db)) {
+				fprintf(stderr, "Error when fetching next key\n");
+				goto db_exit;
+			}
+			key = dbm_nextkey(db);
+		}
+		break;
+
+	case REGEXP:
+		if (argn < 2) {
+			fprintf(stderr, "Missing regular expression.\n");
+			goto db_exit;
+		}
+		if (re_comp(comarg[1])) {
+			fprintf(stderr, "Invalid regular expression\n");
+			goto db_exit;
+		}
+		key = dbm_firstkey(db);
+		if (dbm_error(db)) {
+			fprintf(stderr, "Error when fetching first key\n");
+			goto db_exit;
+		}
+		while (key.dptr != NULL) {
+			if (re_exec(key2s(key))) {
+				content = dbm_fetch(db, key);
+				if (dbm_error(db)) {
+					fprintf(stderr, "Error when fetching ");
+					print_datum(key);
+					printf("\n");
+					goto db_exit;
+				}
+				print_datum(key);
+				printf(": ");
+				print_datum(content);
+				printf("\n");
+				if (dbm_error(db)) {
+					fprintf(stderr, "Error when fetching next key\n");
+					goto db_exit;
+				}
+			}
+			key = dbm_nextkey(db);
+		}
+		break;
+
+	case FETCH:
+		if (argn < 2) {
+			fprintf(stderr, "Missing fetch key.\n");
+			goto db_exit;
+		}
+		content = dbm_fetch(db, key);
+		if (dbm_error(db)) {
+			fprintf(stderr, "Error when fetching ");
+			print_datum(key);
+			printf("\n");
+			goto db_exit;
+		}
+		if (content.dptr == NULL) {
+			fprintf(stderr, "Cannot find ");
+			print_datum(key);
+			printf("\n");
+			goto db_exit;
+		}
+		print_datum(key);
+		printf(": ");
+		print_datum(content);
+		printf("\n");
+		break;
+
+	case DELETE:
+		if (argn < 2) {
+			fprintf(stderr, "Missing delete key.\n");
+			goto db_exit;
+		}
+		if (dbm_delete(db, key) || dbm_error(db)) {
+			fprintf(stderr, "Error when deleting ");
+			print_datum(key);
+			printf("\n");
+			goto db_exit;
+		}
+		if (verbose) {
+			print_datum(key);
+			printf(": DELETED\n");
+		}
+		break;
+
+	case STORE:
+		if (argn < 3) {
+			fprintf(stderr, "Missing key and/or content.\n");
+			goto db_exit;
+		}
+		if (dbm_store(db, key, content, st_flag) || dbm_error(db)) {
+			fprintf(stderr, "Error when storing ");
+			print_datum(key);
+			printf("\n");
+			goto db_exit;
+		}
+		if (verbose) {
+			print_datum(key);
+			printf(": ");
+			print_datum(content);
+			printf(" STORED\n");
+		}
+		break;
+	}
+
+db_exit:
+	dbm_clearerr(db);
+	dbm_close(db);
+	if (dbm_error(db)) {
+		fprintf(stderr, "Error closing database \"%s\"\n", comarg[0]);
+		exit(-1);
+	}
+}