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Diffstat (limited to 'parser.h')
| -rw-r--r-- | parser.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/parser.h b/parser.h new file mode 100644 index 0000000..9ff6576 --- /dev/null +++ b/parser.h @@ -0,0 +1,64 @@ +/* parser.h -- Everything you wanted to know about the parser, but were + afraid to ask. */ + +/* Copyright (C) 1995, 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/>. +*/ + +#if !defined (_PARSER_H_) +# define _PARSER_H_ + +# include "command.h" +# include "input.h" + +/* Possible states for the parser that require it to do special things. */ +#define PST_CASEPAT 0x000001 /* in a case pattern list */ +#define PST_ALEXPNEXT 0x000002 /* expand next word for aliases */ +#define PST_ALLOWOPNBRC 0x000004 /* allow open brace for function def */ +#define PST_NEEDCLOSBRC 0x000008 /* need close brace */ +#define PST_DBLPAREN 0x000010 /* double-paren parsing */ +#define PST_SUBSHELL 0x000020 /* ( ... ) subshell */ +#define PST_CMDSUBST 0x000040 /* $( ... ) command substitution */ +#define PST_CASESTMT 0x000080 /* parsing a case statement */ +#define PST_CONDCMD 0x000100 /* parsing a [[...]] command */ +#define PST_CONDEXPR 0x000200 /* parsing the guts of [[...]] */ +#define PST_ARITHFOR 0x000400 /* parsing an arithmetic for command */ +#define PST_ALEXPAND 0x000800 /* OK to expand aliases - unused */ +#define PST_EXTPAT 0x001000 /* parsing an extended shell pattern */ +#define PST_COMPASSIGN 0x002000 /* parsing x=(...) compound assignment */ +#define PST_ASSIGNOK 0x004000 /* assignment statement ok in this context */ +#define PST_EOFTOKEN 0x008000 /* yylex checks against shell_eof_token */ +#define PST_REGEXP 0x010000 /* parsing an ERE/BRE as a single word */ +#define PST_HEREDOC 0x020000 /* reading body of here-document */ +#define PST_REPARSE 0x040000 /* re-parsing in parse_string_to_word_list */ +#define PST_REDIRLIST 0x080000 /* parsing a list of redirctions preceding a simple command name */ + + +/* Definition of the delimiter stack. Needed by parse.y and bashhist.c. */ +struct dstack { +/* DELIMITERS is a stack of the nested delimiters that we have + encountered so far. */ + char *delimiters; + +/* Offset into the stack of delimiters. */ + int delimiter_depth; + +/* How many slots are allocated to DELIMITERS. */ + int delimiter_space; +}; + +#endif /* _PARSER_H_ */ |