/* vi: set sw=4 ts=4: */ /* * Adapted from ash applet code * * This code is derived from software contributed to Berkeley by * Kenneth Almquist. * * Copyright (c) 1989, 1991, 1993, 1994 * The Regents of the University of California. All rights reserved. * * Copyright (c) 1997-2005 Herbert Xu <herbert@gondor.apana.org.au> * was re-ported from NetBSD and debianized. * * Copyright (c) 2010 Denys Vlasenko * Split from ash.c * * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. */ #include "libbb.h" #include "shell_common.h" const char defifsvar[] ALIGN1 = "IFS= \t\n"; int FAST_FUNC is_well_formed_var_name(const char *s, char terminator) { if (!s || !(isalpha(*s) || *s == '_')) return 0; do s++; while (isalnum(*s) || *s == '_'); return *s == terminator; }