1 #ifndef FOR_H 2 #define FOR_H 3 /* $OpenPackages$ */ 4 /* $OpenBSD: for.h,v 1.3 2007/09/17 09:28:36 espie Exp $ */ 5 /* 6 * Copyright (c) 2001 Marc Espie. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD 21 * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 31 /* 32 * for 33 * Functions to handle loops in a makefile. 34 */ 35 36 struct For_; 37 typedef struct For_ For; 38 /* handle = For_Eval(line); 39 * Evaluate for loop in line, and returns an opaque handle. 40 * Loop lines are parsed as 41 * <variable1> ... in <values> 42 * assuming .for has been parsed by previous modules. 43 * Returns NULL if this does not parse as a for loop after all. */ 44 extern For *For_Eval(const char *); 45 46 /* finished = For_Accumulate(handle, line); 47 * Accumulate lines in a loop, until we find the matching .endfor. */ 48 extern bool For_Accumulate(For *, const char *); 49 50 /* For_Run(handle); 51 * Runs the complete for loop, pushing back expanded lines to reparse 52 * using Parse_FromString. */ 53 extern void For_Run(For *); 54 55 #endif 56