1#ifndef FOR_H
2#define FOR_H
3/* $OpenBSD: for.h,v 1.5 2010/07/19 19:46:44 espie Exp $ */
4/*
5 * Copyright (c) 2001 Marc Espie.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
20 * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29
30/*
31 * for
32 *	Functions to handle loops in a makefile.
33 */
34
35struct For_;
36typedef struct For_ For;
37/* handle = For_Eval(line);
38 *	Evaluate for loop in line, and returns an opaque handle.
39 *	Loop lines are parsed as
40 *	 <variable1> ... in <values>
41 *	assuming .for has been parsed by previous modules.
42 *	Returns NULL if this does not parse as a for loop after all.  */
43extern For *For_Eval(const char *);
44
45/* finished = For_Accumulate(handle, line);
46 *	Accumulate lines in a loop, until we find the matching .endfor. */
47extern bool For_Accumulate(For *, const char *);
48
49/* For_Run(handle);
50 *	Runs the complete for loop, pushing back expanded lines to reparse
51 *	using Parse_FromString. */
52extern void For_Run(For *);
53
54#endif
55