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- /*-
- * Copyright (c) 1991 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Kenneth Almquist.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)parser.h 5.1 (Berkeley) 3/7/91
- */
-
- /* control characters in argument strings */
- #define CTLESC '\201'
- #define CTLVAR '\202'
- #define CTLENDVAR '\203'
- #define CTLBACKQ '\204'
- #define CTLQUOTE 01 /* ored with CTLBACKQ code if in quotes */
-
- /* variable substitution byte (follows CTLVAR) */
- #define VSTYPE 07 /* type of variable substitution */
- #define VSNUL 040 /* colon--treat the empty string as unset */
- #define VSQUOTE 0100 /* inside double quotes--suppress splitting */
-
- /* values of VSTYPE field */
- #define VSNORMAL 1 /* normal variable: $var or ${var} */
- #define VSMINUS 2 /* ${var-text} */
- #define VSPLUS 3 /* ${var+text} */
- #define VSQUESTION 4 /* ${var?message} */
- #define VSASSIGN 5 /* ${var=text} */
-
-
- /*
- * NEOF is returned by parsecmd when it encounters an end of file. It
- * must be distinct from NULL, so we use the address of a variable that
- * happens to be handy.
- */
- extern int tokpushback;
- #define NEOF ((union node *)&tokpushback)
-
-
- #ifdef __STDC__
- union node *parsecmd(int);
- int goodname(char *);
- #else
- union node *parsecmd();
- int goodname();
- #endif
-