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Diffstat (limited to 'src/kash/syntax.h')
| -rw-r--r-- | src/kash/syntax.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/kash/syntax.h b/src/kash/syntax.h new file mode 100644 index 0000000..2c6aab8 --- /dev/null +++ b/src/kash/syntax.h @@ -0,0 +1,91 @@ +/* $NetBSD: syntax.h,v 1.2 2004/01/17 17:38:12 dsl Exp $ */ + +/*- + * 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. + */ + +#include <ctype.h> +#include <limits.h> + +/* Syntax classes */ +#define CWORD 0 /* character is nothing special */ +#define CNL 1 /* newline character */ +#define CBACK 2 /* a backslash character */ +#define CSQUOTE 3 /* single quote */ +#define CDQUOTE 4 /* double quote */ +#define CBQUOTE 5 /* backwards single quote */ +#define CVAR 6 /* a dollar sign */ +#define CENDVAR 7 /* a '}' character */ +#define CLP 8 /* a left paren in arithmetic */ +#define CRP 9 /* a right paren in arithmetic */ +#define CSHEOF 10 /* end of file */ +#define CCTL 11 /* like CWORD, except it must be escaped */ +#define CSPCL 12 /* these terminate a word */ + +/* Syntax classes for is_ functions */ +#define ISDIGIT 01 /* a digit */ +#define ISUPPER 02 /* an upper case letter */ +#define ISLOWER 04 /* a lower case letter */ +#define ISUNDER 010 /* an underscore */ +#define ISSPECL 020 /* the name of a special parameter */ + +#define PEOF (CHAR_MIN - 1) +#define SYNBASE (-PEOF) +/* XXX UPEOF is CHAR_MAX, so is a valid 'char' value... */ +#define UPEOF ((char)PEOF) + + +#define BASESYNTAX (basesyntax + SYNBASE) +#define DQSYNTAX (dqsyntax + SYNBASE) +#define SQSYNTAX (sqsyntax + SYNBASE) +#define ARISYNTAX (arisyntax + SYNBASE) + +/* These defines assume that the digits are contiguous */ +#define is_digit(c) ((unsigned)((c) - '0') <= 9) +#define is_alpha(c) (((char)(c)) != UPEOF && ((c) < CTL_FIRST || (c) > CTL_LAST) && isalpha((unsigned char)(c))) +#define is_name(c) (((char)(c)) != UPEOF && ((c) < CTL_FIRST || (c) > CTL_LAST) && ((c) == '_' || isalpha((unsigned char)(c)))) +#define is_in_name(c) (((char)(c)) != UPEOF && ((c) < CTL_FIRST || (c) > CTL_LAST) && ((c) == '_' || isalnum((unsigned char)(c)))) +#define is_special(c) ((is_type+SYNBASE)[c] & (ISSPECL|ISDIGIT)) +#define digit_val(c) ((c) - '0') + +#ifdef _MSC_VER +extern char basesyntax[]; +extern char dqsyntax[]; +extern char sqsyntax[]; +extern char arisyntax[]; +extern char is_type[]; +#else +extern const char basesyntax[]; +extern const char dqsyntax[]; +extern const char sqsyntax[]; +extern const char arisyntax[]; +extern const char is_type[]; +#endif |