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/*
* Copyright 1999, TaBE Project, All Rights Reserved.
* Copyright 1999, Pai-Hsiang Hsiao, All Rights Reserved.
*
* $Id: tsidel.c,v 1.4 2002/08/11 01:58:11 kcwu Exp $
*
*/
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#ifdef HPUX
# define _INCLUDE_POSIX_SOURCE
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <db.h>
#include <tabe.h>
#include "../src/version.h"
#define BUF_SIZE 1000
void
usage(void)
{
printf("tsidel: libtabe-%s\n", RELEASE_VER);
printf("Usage: tsidel -d <TsiDB> [-f input file]\n");
printf(" -d <TsiDB> \t path to TsiDB\n");
printf(" -f <input file>\t input file in plain text (default: stdin)\n");
exit(0);
}
void
del(struct TsiDB *db, FILE *fp)
{
struct TsiInfo *tsi;
int rval, i, j;
char buf[BUF_SIZE];
DBT key;
rval = db->RecordNumber(db);
if (rval < 0) {
fprintf(stderr, "tsidel: wrong DB format.\n");
usage();
}
tsi = (struct TsiInfo *)malloc(sizeof(struct TsiInfo));
memset(tsi, 0, sizeof(struct TsiInfo));
tsi->tsi = (ZhiStr)malloc(sizeof(unsigned char)*80);
memset(tsi->tsi, 0, 80);
i = j = 0;
while (1) {
if (!fgets(buf, BUF_SIZE-1, fp)) {
break;
}
sscanf(buf, "%80s", tsi->tsi);
i++;
rval = db->Get(db, tsi);
if (!rval) {
memset(&key, 0, sizeof(DBT));
key.data = tsi->tsi;
key.size = strlen((char *)tsi->tsi);
rval = ((DB *)(db->dbp))->del((DB *)db->dbp, NULL, &key, 0);
j++;
}
else {
/* donothing */
}
}
printf("There're %d queries, %d deleted.\n", i, j);
db->Close(db);
}
int
main(int argc, char **argv)
{
int ch;
FILE *fp;
struct TsiDB *db;
extern char *optarg;
extern int optind, opterr, optopt;
char *db_name, *op_name;
db_name = op_name = (char *)NULL;
while ((ch = getopt(argc, argv, "d:f:")) != -1) {
switch(ch) {
case 'd':
db_name = (char *)strdup(optarg);
break;
case 'f':
op_name = (char *)strdup(optarg);
break;
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
if (!db_name) {
usage();
}
db = tabeTsiDBOpen(DB_TYPE_DB, db_name, 0);
if (!db) {
usage();
}
if (op_name) {
fp = fopen(op_name, "r");
del(db, fp);
fclose(fp);
}
else {
del(db, stdin);
}
return(0);
}
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