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+/*-
+ * Copyright (c) 1991, 1993
+ *	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. 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.
+ *
+ *	@(#)expand.h	8.2 (Berkeley) 5/4/95
+ * $FreeBSD: releng/12.0/bin/sh/expand.h 314436 2017-02-28 23:42:47Z imp $
+ */
+
+struct arglist {
+	char **args;
+	int count;
+	int capacity;
+	char *smallarg[1];
+};
+
+/*
+ * expandarg() flags
+ */
+#define EXP_SPLIT	0x1	/* perform word splitting */
+#define EXP_TILDE	0x2	/* do normal tilde expansion */
+#define	EXP_VARTILDE	0x4	/* expand tildes in an assignment */
+#define EXP_CASE	0x10	/* keeps quotes around for CASE pattern */
+#define EXP_SPLIT_LIT	0x20	/* IFS split literal text ${v+-a b c} */
+#define EXP_LIT_QUOTED	0x40	/* for EXP_SPLIT_LIT, start off quoted */
+#define EXP_GLOB	0x80	/* perform file globbing */
+
+#define EXP_FULL	(EXP_SPLIT | EXP_GLOB)
+
+
+void emptyarglist(struct arglist *);
+void appendarglist(struct arglist *, char *);
+union node;
+void expandarg(union node *, struct arglist *, int);
+void rmescapes(char *);
+int casematch(union node *, const char *);