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Diffstat (limited to '')
| -rw-r--r-- | syntax.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/syntax.h b/syntax.h new file mode 100644 index 0000000..34f5496 --- /dev/null +++ b/syntax.h @@ -0,0 +1,106 @@ +/* syntax.h -- Syntax definitions for the shell */ + +/* Copyright (C) 2000, 2001, 2005, 2008, 2009-2020 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_ */ |