[thirdparty/bash.git] / syntax.h

/* 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 parserblank(c)	((c) == ' ' || (c) == '\t')

#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_ */
Commit	Line	Data
	1	/* syntax.h -- Syntax definitions for the shell */
	2
	3	/* Copyright (C) 2000, 2001, 2005, 2008,2009 Free Software Foundation, Inc.
	4
	5	This file is part of GNU Bash, the Bourne Again SHell.
	6
	7	Bash is free software: you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation, either version 3 of the License, or
	10	(at your option) any later version.
	11
	12	Bash is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with Bash. If not, see <http://www.gnu.org/licenses/>.
	19	*/
	20
	21	#ifndef _SYNTAX_H_
	22	#define _SYNTAX_H_
	23
	24	/* Defines for use by mksyntax.c */
	25
	26	#define slashify_in_quotes "\\`$\"\n"
	27	#define slashify_in_here_document "\\`$"
	28
	29	#define shell_meta_chars "()<>;&\|"
	30	#define shell_break_chars "()<>;&\| \t\n"
	31
	32	#define shell_quote_chars "\"`'"
	33
	34	#if defined (PROCESS_SUBSTITUTION)
	35	# define shell_exp_chars "$<>"
	36	#else
	37	# define shell_exp_chars "$"
	38	#endif
	39
	40	#if defined (EXTENDED_GLOB)
	41	# define ext_glob_chars "@*+?!"
	42	#else
	43	# define ext_glob_chars ""
	44	#endif
	45	#define shell_glob_chars "*?[]^"
	46
	47	/* Defines shared by mksyntax.c and the rest of the shell code. */
	48
	49	/* Values for character flags in syntax tables */
	50
	51	#define CWORD 0x0000 /* nothing special; an ordinary character */
	52	#define CSHMETA 0x0001 /* shell meta character */
	53	#define CSHBRK 0x0002 /* shell break character */
	54	#define CBACKQ 0x0004 /* back quote */
	55	#define CQUOTE 0x0008 /* shell quote character */
	56	#define CSPECL 0x0010 /* special character that needs quoting */
	57	#define CEXP 0x0020 /* shell expansion character */
	58	#define CBSDQUOTE 0x0040 /* characters escaped by backslash in double quotes */
	59	#define CBSHDOC 0x0080 /* characters escaped by backslash in here doc */
	60	#define CGLOB 0x0100 /* globbing characters */
	61	#define CXGLOB 0x0200 /* extended globbing characters */
	62	#define CXQUOTE 0x0400 /* cquote + backslash */
	63	#define CSPECVAR 0x0800 /* single-character shell variable name */
	64	#define CSUBSTOP 0x1000 /* values of OP for ${word[:]OPstuff} */
	65	#define CBLANK 0x2000 /* whitespace (blank) character */
	66
	67	/* Defines for use by the rest of the shell. */
	68	extern int sh_syntaxtab[];
	69	extern int sh_syntabsiz;
	70
	71	#define shellmeta(c) (sh_syntaxtab[(unsigned char)(c)] & CSHMETA)
	72	#define shellbreak(c) (sh_syntaxtab[(unsigned char)(c)] & CSHBRK)
	73	#define shellquote(c) (sh_syntaxtab[(unsigned char)(c)] & CQUOTE)
	74	#define shellxquote(c) (sh_syntaxtab[(unsigned char)(c)] & CXQUOTE)
	75
	76	#define shellblank(c) (sh_syntaxtab[(unsigned char)(c)] & CBLANK)
	77
	78	#define parserblank(c) ((c) == ' ' \|\| (c) == '\t')
	79
	80	#define issyntype(c, t) ((sh_syntaxtab[(unsigned char)(c)] & (t)) != 0)
	81	#define notsyntype(c,t) ((sh_syntaxtab[(unsigned char)(c)] & (t)) == 0)
	82
	83	#if defined (PROCESS_SUBSTITUTION)
	84	# define shellexp(c) ((c) == '$' \|\| (c) == '<' \|\| (c) == '>')
	85	#else
	86	# define shellexp(c) ((c) == '$')
	87	#endif
	88
	89	#if defined (EXTENDED_GLOB)
	90	# define PATTERN_CHAR(c) \
	91	((c) == '@' \|\| (c) == '*' \|\| (c) == '+' \|\| (c) == '?' \|\| (c) == '!')
	92	#else
	93	# define PATTERN_CHAR(c) 0
	94	#endif
	95
	96	#define GLOB_CHAR(c) \
	97	((c) == '*' \|\| (c) == '?' \|\| (c) == '[' \|\| (c) == ']' \|\| (c) == '^')
	98
	99	#define CTLESC '\001'
	100	#define CTLNUL '\177'
	101
	102	#if !defined (HAVE_ISBLANK) && !defined (isblank)
	103	# define isblank(x) ((x) == ' ' \|\| (x) == '\t')
	104	#endif
	105
	106	#endif /* _SYNTAX_H_ */