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Annotation of src/usr.bin/make/for.h, Revision 1.5

1.1       espie       1: #ifndef FOR_H
                      2: #define FOR_H
1.5     ! espie       3: /* $OpenBSD: for.h,v 1.4 2010/07/19 19:30:37 espie Exp $ */
1.1       espie       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:
                     35: struct For_;
                     36: typedef 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
1.2       espie      40:  *      <variable1> ... in <values>
1.3       espie      41:  *     assuming .for has been parsed by previous modules.
1.2       espie      42:  *     Returns NULL if this does not parse as a for loop after all.  */
1.1       espie      43: extern For *For_Eval(const char *);
                     44:
                     45: /* finished = For_Accumulate(handle, line);
                     46:  *     Accumulate lines in a loop, until we find the matching .endfor. */
                     47: extern bool For_Accumulate(For *, const char *);
                     48:
                     49: /* For_Run(handle);
1.3       espie      50:  *     Runs the complete for loop, pushing back expanded lines to reparse
1.1       espie      51:  *     using Parse_FromString. */
                     52: extern void For_Run(For *);
                     53:
                     54: #endif