1 #ifndef VARMODIFIERS_H 2 #define VARMODIFIERS_H 3 4 /* $OpenBSD: varmodifiers.h,v 1.12 2010/07/19 19:46:44 espie Exp $ */ 5 6 /* 7 * Copyright (c) 1999 Marc Espie. 8 * 9 * Extensive code changes for the OpenBSD project. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD 24 * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* VarModifiers_Init(); 34 * Set up varmodifiers internal table according to selected features. 35 * This can be called several times without harm. */ 36 extern void VarModifiers_Init(void); 37 38 39 /* result = VarModifiers_Apply(val, name, ctxt, undef_is_bad, 40 * &should_free, &modstart, paren); 41 * Applies variable modifiers starting at modstart (including :), 42 * using parenthesis paren, to value val. 43 * Variables in spec are taken from context ctxt. 44 * If undef_is_bad, error occurs if undefined variables are mentioned. 45 * modstart is advanced past the end of the spec. 46 * name holds the name of the corresponding variable, as some ODE 47 * modifiers need it. 48 * 49 * If both val and name are NULL, VarModifiers_Apply just parses the 50 * modifiers specification, as it can't apply it to anything. */ 51 extern char *VarModifiers_Apply(char *, const struct Name *, SymTable *, 52 bool, bool *, const char **, int); 53 54 /* Direct interface to specific modifiers used under special circumstances. */ 55 /* tails = Var_GetTail(string); 56 * Returns the tail of list of words in string (needed for SysV locals). */ 57 extern char *Var_GetTail(char *); 58 /* heads = Var_GetHead(string); 59 * Returns the head of list of words in string. */ 60 /* XXX this does not replace foo with ., as (sun) System V make does. 61 * Should it ? */ 62 extern char *Var_GetHead(char *); 63 #endif 64