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/* syntax.h -- Syntax definitions for the shell */
/* Copyright (C) 2000, 2001, 2005, 2008,2009 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SYNTAX_H_
#define _SYNTAX_H_
/* Defines for use by mksyntax.c */
#define slashify_in_quotes "\\`$\"\n"
#define slashify_in_here_document "\\`$"
#define shell_meta_chars "()<>;&|"
#define shell_break_chars "()<>;&| \t\n"
#define shell_quote_chars "\"`'"
#if defined (PROCESS_SUBSTITUTION)
# define shell_exp_chars "$<>"
#else
# define shell_exp_chars "$"
#endif
#if defined (EXTENDED_GLOB)
# define ext_glob_chars "@*+?!"
#else
# define ext_glob_chars ""
#endif
#define shell_glob_chars "*?[]^"
/* Defines shared by mksyntax.c and the rest of the shell code. */
/* Values for character flags in syntax tables */
#define CWORD 0x0000 /* nothing special; an ordinary character */
#define CSHMETA 0x0001 /* shell meta character */
#define CSHBRK 0x0002 /* shell break character */
#define CBACKQ 0x0004 /* back quote */
#define CQUOTE 0x0008 /* shell quote character */
#define CSPECL 0x0010 /* special character that needs quoting */
#define CEXP 0x0020 /* shell expansion character */
#define CBSDQUOTE 0x0040 /* characters escaped by backslash in double quotes */
#define CBSHDOC 0x0080 /* characters escaped by backslash in here doc */
#define CGLOB 0x0100 /* globbing characters */
#define CXGLOB 0x0200 /* extended globbing characters */
#define CXQUOTE 0x0400 /* cquote + backslash */
#define CSPECVAR 0x0800 /* single-character shell variable name */
#define CSUBSTOP 0x1000 /* values of OP for ${word[:]OPstuff} */
#define CBLANK 0x2000 /* whitespace (blank) character */
/* Defines for use by the rest of the shell. */
extern int sh_syntaxtab[];
extern int sh_syntabsiz;
#define shellmeta(c) (sh_syntaxtab[(unsigned char)(c)] & CSHMETA)
#define shellbreak(c) (sh_syntaxtab[(unsigned char)(c)] & CSHBRK)
#define shellquote(c) (sh_syntaxtab[(unsigned char)(c)] & CQUOTE)
#define shellxquote(c) (sh_syntaxtab[(unsigned char)(c)] & CXQUOTE)
#define shellblank(c) (sh_syntaxtab[(unsigned char)(c)] & CBLANK)
#define issyntype(c, t) ((sh_syntaxtab[(unsigned char)(c)] & (t)) != 0)
#define notsyntype(c,t) ((sh_syntaxtab[(unsigned char)(c)] & (t)) == 0)
#if defined (PROCESS_SUBSTITUTION)
# define shellexp(c) ((c) == '$' || (c) == '<' || (c) == '>')
#else
# define shellexp(c) ((c) == '$')
#endif
#if defined (EXTENDED_GLOB)
# define PATTERN_CHAR(c) \
((c) == '@' || (c) == '*' || (c) == '+' || (c) == '?' || (c) == '!')
#else
# define PATTERN_CHAR(c) 0
#endif
#define GLOB_CHAR(c) \
((c) == '*' || (c) == '?' || (c) == '[' || (c) == ']' || (c) == '^')
#define CTLESC '\001'
#define CTLNUL '\177'
#if !defined (HAVE_ISBLANK) && !defined (isblank)
# define isblank(x) ((x) == ' ' || (x) == '\t')
#endif
#endif /* _SYNTAX_H_ */
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