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Annotation of src/usr.bin/make/cond.h, Revision 1.1

1.1     ! espie       1: #ifndef COND_H
        !             2: #define COND_H
        !             3: /*     $OpenPackages$ */
        !             4: /*     $OpenBSD$ */
        !             5:
        !             6: /*
        !             7:  * Copyright (c) 2001 Marc Espie.
        !             8:  *
        !             9:  * Redistribution and use in source and binary forms, with or without
        !            10:  * modification, are permitted provided that the following conditions
        !            11:  * are met:
        !            12:  * 1. Redistributions of source code must retain the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer.
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  *
        !            18:  * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
        !            19:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
        !            20:  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
        !            21:  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
        !            22:  * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
        !            23:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
        !            24:  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            25:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            26:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            27:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
        !            28:  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            29:  */
        !            30:
        !            31: /* cond
        !            32:  *     Parse Makefile conditionals.
        !            33:  */
        !            34:
        !            35: /* Values returned by Cond_Eval.  */
        !            36: #define COND_PARSE     0       /* Parse the next lines */
        !            37: #define COND_SKIP      1       /* Skip the next lines */
        !            38: #define COND_INVALID   2       /* Not a conditional statement */
        !            39:
        !            40: /* whattodo = Cond_Eval(line);
        !            41:  *     Parses a conditional expression (without the leading dot),
        !            42:  *     and returns a decision value.
        !            43:  *     State is kept internally, since conditionals nest.  */
        !            44: extern int Cond_Eval(const char *);
        !            45:
        !            46: /* Cond_End();
        !            47:  *     To call at end of parsing, checks that all conditionals were
        !            48:  *     closed.  */
        !            49: extern void Cond_End(void);
        !            50:
        !            51: #endif