Jari Aalto | 726f638 | 1996-08-26 18:22:31 +0000 | [diff] [blame] | 1 | /* parser.h -- Everything you wanted to know about the parser, but were |
| 2 | afraid to ask. */ |
Jari Aalto | bb70624 | 2000-03-17 21:46:59 +0000 | [diff] [blame] | 3 | |
Chet Ramey | 495aee4 | 2011-11-22 19:11:26 -0500 | [diff] [blame] | 4 | /* Copyright (C) 1995-2010 Free Software Foundation, Inc. |
Jari Aalto | bb70624 | 2000-03-17 21:46:59 +0000 | [diff] [blame] | 5 | |
| 6 | This file is part of GNU Bash, the Bourne Again SHell. |
| 7 | |
Jari Aalto | 3185942 | 2009-01-12 13:36:28 +0000 | [diff] [blame] | 8 | Bash is free software: you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation, either version 3 of the License, or |
| 11 | (at your option) any later version. |
Jari Aalto | bb70624 | 2000-03-17 21:46:59 +0000 | [diff] [blame] | 12 | |
Jari Aalto | 3185942 | 2009-01-12 13:36:28 +0000 | [diff] [blame] | 13 | Bash is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
Jari Aalto | bb70624 | 2000-03-17 21:46:59 +0000 | [diff] [blame] | 17 | |
Jari Aalto | 3185942 | 2009-01-12 13:36:28 +0000 | [diff] [blame] | 18 | You should have received a copy of the GNU General Public License |
| 19 | along with Bash. If not, see <http://www.gnu.org/licenses/>. |
| 20 | */ |
Jari Aalto | bb70624 | 2000-03-17 21:46:59 +0000 | [diff] [blame] | 21 | |
Jari Aalto | ccc6cda | 1996-12-23 17:02:34 +0000 | [diff] [blame] | 22 | #if !defined (_PARSER_H_) |
| 23 | # define _PARSER_H_ |
Jari Aalto | 726f638 | 1996-08-26 18:22:31 +0000 | [diff] [blame] | 24 | |
Jari Aalto | 726f638 | 1996-08-26 18:22:31 +0000 | [diff] [blame] | 25 | # include "command.h" |
| 26 | # include "input.h" |
Jari Aalto | ccc6cda | 1996-12-23 17:02:34 +0000 | [diff] [blame] | 27 | |
Jari Aalto | 3185942 | 2009-01-12 13:36:28 +0000 | [diff] [blame] | 28 | /* Possible states for the parser that require it to do special things. */ |
Chet Ramey | 0001803 | 2011-11-21 20:51:19 -0500 | [diff] [blame] | 29 | #define PST_CASEPAT 0x000001 /* in a case pattern list */ |
| 30 | #define PST_ALEXPNEXT 0x000002 /* expand next word for aliases */ |
| 31 | #define PST_ALLOWOPNBRC 0x000004 /* allow open brace for function def */ |
| 32 | #define PST_NEEDCLOSBRC 0x000008 /* need close brace */ |
| 33 | #define PST_DBLPAREN 0x000010 /* double-paren parsing */ |
| 34 | #define PST_SUBSHELL 0x000020 /* ( ... ) subshell */ |
| 35 | #define PST_CMDSUBST 0x000040 /* $( ... ) command substitution */ |
| 36 | #define PST_CASESTMT 0x000080 /* parsing a case statement */ |
| 37 | #define PST_CONDCMD 0x000100 /* parsing a [[...]] command */ |
| 38 | #define PST_CONDEXPR 0x000200 /* parsing the guts of [[...]] */ |
Chet Ramey | 495aee4 | 2011-11-22 19:11:26 -0500 | [diff] [blame] | 39 | #define PST_ARITHFOR 0x000400 /* parsing an arithmetic for command - unused */ |
Chet Ramey | 0001803 | 2011-11-21 20:51:19 -0500 | [diff] [blame] | 40 | #define PST_ALEXPAND 0x000800 /* OK to expand aliases - unused */ |
| 41 | #define PST_EXTPAT 0x001000 /* parsing an extended shell pattern */ |
| 42 | #define PST_COMPASSIGN 0x002000 /* parsing x=(...) compound assignment */ |
| 43 | #define PST_ASSIGNOK 0x004000 /* assignment statement ok in this context */ |
| 44 | #define PST_EOFTOKEN 0x008000 /* yylex checks against shell_eof_token */ |
| 45 | #define PST_REGEXP 0x010000 /* parsing an ERE/BRE as a single word */ |
| 46 | #define PST_HEREDOC 0x020000 /* reading body of here-document */ |
| 47 | #define PST_REPARSE 0x040000 /* re-parsing in parse_string_to_word_list */ |
Chet Ramey | ac50fba | 2014-02-26 09:36:43 -0500 | [diff] [blame^] | 48 | #define PST_REDIRLIST 0x080000 /* parsing a list of redirections preceding a simple command name */ |
Chet Ramey | 0001803 | 2011-11-21 20:51:19 -0500 | [diff] [blame] | 49 | |
Jari Aalto | 3185942 | 2009-01-12 13:36:28 +0000 | [diff] [blame] | 50 | |
Jari Aalto | ccc6cda | 1996-12-23 17:02:34 +0000 | [diff] [blame] | 51 | /* Definition of the delimiter stack. Needed by parse.y and bashhist.c. */ |
| 52 | struct dstack { |
| 53 | /* DELIMITERS is a stack of the nested delimiters that we have |
| 54 | encountered so far. */ |
| 55 | char *delimiters; |
| 56 | |
| 57 | /* Offset into the stack of delimiters. */ |
| 58 | int delimiter_depth; |
| 59 | |
| 60 | /* How many slots are allocated to DELIMITERS. */ |
| 61 | int delimiter_space; |
| 62 | }; |
| 63 | |
Chet Ramey | 495aee4 | 2011-11-22 19:11:26 -0500 | [diff] [blame] | 64 | /* States we can be in while scanning a ${...} expansion. Shared between |
| 65 | parse.y and subst.c */ |
| 66 | #define DOLBRACE_PARAM 0x01 |
| 67 | #define DOLBRACE_OP 0x02 |
| 68 | #define DOLBRACE_WORD 0x04 |
| 69 | |
Chet Ramey | ac50fba | 2014-02-26 09:36:43 -0500 | [diff] [blame^] | 70 | #define DOLBRACE_QUOTE 0x40 /* single quote is special in double quotes */ |
| 71 | #define DOLBRACE_QUOTE2 0x80 /* single quote is semi-special in double quotes */ |
Chet Ramey | 495aee4 | 2011-11-22 19:11:26 -0500 | [diff] [blame] | 72 | |
Jari Aalto | ccc6cda | 1996-12-23 17:02:34 +0000 | [diff] [blame] | 73 | #endif /* _PARSER_H_ */ |