Subversion Repositories planix.SVN

#include <u.h>

#include <libc.h>

#include <bio.h>

#include <ctype.h>

#include <ndb.h>

#include "ndbhf.h"

/*

 *  Parse a data base entry.  Entries may span multiple

 *  lines.  An entry starts on a left margin.  All subsequent

 *  lines must be indented by white space.  An entry consists

 *  of tuples of the forms:

 *	attribute-name

 *	attribute-name=value

 *	attribute-name="value with white space"

 *

 *  The parsing returns a 2-dimensional structure.  The first

 *  dimension joins all tuples. All tuples on the same line

 *  form a ring along the second dimension.

 */

/*

 *  parse the next entry in the file

 */

Ndbtuple*

ndbparse(Ndb *db)

{

	char *line;

	Ndbtuple *t;

	Ndbtuple *first, *last;

	int len;

	first = last = 0;

	for(;;){

		if((line = Brdline(&db->b, '\n')) == 0)

			break;

		len = Blinelen(&db->b);

		if(line[len-1] != '\n')

			break;

		if(first && !ISWHITE(*line) && *line != '#'){

			Bseek(&db->b, -len, 1);

			break;

		}

		t = _ndbparseline(line);

		if(t == 0)

			continue;

		setmalloctag(t, getcallerpc(&db));

		if(first)

			last->entry = t;

		else

			first = t;

		last = t;

		while(last->entry)

			last = last->entry;

	}

	ndbsetmalloctag(first, getcallerpc(&db));

	return first;

}