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/*
* Copyright (c) 1996, 1997, 1998 Shigio Yamaguchi. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Shigio Yamaguchi.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* defined.c 12-Nov-98
*
*/
#include <stdlib.h>
#include "die.h"
#include "dbop.h"
#include "defined.h"
#include "makepath.h"
static DBOP *dbop = NULL;
/*
* Tag command that supports referenced tag must call this function
* to decide whether or not the tag is defined.
*/
int
defined(name)
const char *name;
{
if (dbop == NULL) {
const char *dbpath;
/*
* gtags(1) set GTAGSDBPATH to the path GTAGS exist.
*/
if (!(dbpath = getenv("GTAGSDBPATH")))
dbpath = ".";
dbop = dbop_open(makepath(dbpath, "GTAGS"), 0, 0, 0);
if (dbop == NULL)
die1("GTAGS not found. (%s)", makepath(dbpath, "GTAGS"));
}
if (dbop_get(dbop, name))
return 1;
return 0;
}
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