/* shell.h -- The data structures used by the shell */
-/* Copyright (C) 1993 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2009 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 2, or (at your option) any later
- version.
+ 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.
+ 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; see the file COPYING. If not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with Bash. If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifdef HAVE_CONFIG_H
#include "config.h"
+#endif
#include "bashjmp.h"
#include "command.h"
+#include "syntax.h"
#include "general.h"
#include "error.h"
#include "variables.h"
+#include "arrayfunc.h"
#include "quit.h"
#include "maxpath.h"
#include "unwind_prot.h"
#include "dispose_cmd.h"
#include "make_cmd.h"
+#include "ocache.h"
#include "subst.h"
#include "sig.h"
#include "pathnames.h"
#define NO_PIPE -1
#define REDIRECT_BOTH -2
-#define IS_DESCRIPTOR -1
#define NO_VARIABLE -1
/* Usage messages by builtins result in a return status of 2. */
#define EX_BADUSAGE 2
+#define EX_MISCERROR 2
+
/* Special exit statuses used by the shell, internally and externally. */
+#define EX_RETRYFAIL 124
+#define EX_WEXPCOMSUB 125
#define EX_BINARY_FILE 126
#define EX_NOEXEC 126
#define EX_NOINPUT 126
#define EX_BADASSIGN 260 /* variable assignment error */
#define EX_EXPFAIL 261 /* word expansion failed */
-/* The list of characters that are quoted in double-quotes with a
- backslash. Other characters following a backslash cause nothing
- special to happen. */
-#define slashify_in_quotes "\\`$\"\n"
-#define slashify_in_here_document "\\`$"
-
-/* Constants which specify how to handle backslashes and quoting in
- expand_word_internal (). Q_DOUBLE_QUOTES means to use the function
- slashify_in_quotes () to decide whether the backslash should be
- retained. Q_HERE_DOCUMENT means slashify_in_here_document () to
- decide whether to retain the backslash. Q_KEEP_BACKSLASH means
- to unconditionally retain the backslash. */
-#define Q_DOUBLE_QUOTES 0x1
-#define Q_HERE_DOCUMENT 0x2
-#define Q_KEEP_BACKSLASH 0x4
-#define Q_NOQUOTE 0x8
-#define Q_QUOTED 0x10
-#define Q_ADDEDQUOTES 0x20
-#define Q_QUOTEDNULL 0x40
-
/* Flag values that control parameter pattern substitution. */
-#define MATCH_ANY 0x0
-#define MATCH_BEG 0x1
-#define MATCH_END 0x2
+#define MATCH_ANY 0x000
+#define MATCH_BEG 0x001
+#define MATCH_END 0x002
-#define MATCH_TYPEMASK 0x3
+#define MATCH_TYPEMASK 0x003
-#define MATCH_GLOBREP 0x10
-#define MATCH_QUOTED 0x20
+#define MATCH_GLOBREP 0x010
+#define MATCH_QUOTED 0x020
+#define MATCH_STARSUB 0x040
/* Some needed external declarations. */
extern char **shell_environment;
extern WORD_LIST *rest_of_args;
/* Generalized global variables. */
+extern int debugging_mode;
extern int executing, login_shell;
+extern int interactive, interactive_shell;
+extern int startup_state;
+extern int subshell_environment;
+extern int shell_compatibility_level;
+
+extern int locale_mb_cur_max;
/* Structure to pass around that holds a bitmap of file descriptors
to close, and the size of that structure. Used in execute_cmd.c. */
struct fd_bitmap {
- long size;
+ int size;
char *bitmap;
};
/* Information about the current user. */
struct user_info {
- int uid, euid;
- int gid, egid;
+ uid_t uid, euid;
+ gid_t gid, egid;
char *user_name;
char *shell; /* shell from the password file */
char *home_dir;
};
extern struct user_info current_user;
+
+/* Force gcc to not clobber X on a longjmp(). Old versions of gcc mangle
+ this badly. */
+#if (__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ > 8)
+# define USE_VAR(x) ((void) &(x))
+#else
+# define USE_VAR(x)
+#endif
+
+/* Structure in which to save partial parsing state when doing things like
+ PROMPT_COMMAND and bash_execute_unix_command execution. */
+
+typedef struct _sh_parser_state_t {
+
+ /* parsing state */
+ int parser_state;
+ int *token_state;
+
+ char *token;
+ int token_buffer_size;
+
+ /* input line state -- line number saved elsewhere */
+ int input_line_terminator;
+ int eof_encountered;
+
+#if defined (HANDLE_MULTIBYTE)
+ /* Nothing right now for multibyte state, but might want something later. */
+#endif
+
+ char **prompt_string_pointer;
+
+ /* history state affecting or modified by the parser */
+ int current_command_line_count;
+#if defined (HISTORY)
+ int remember_on_history;
+ int history_expansion_inhibited;
+#endif
+
+ /* execution state possibly modified by the parser */
+ int last_command_exit_value;
+#if defined (ARRAY_VARS)
+ ARRAY *pipestatus;
+#endif
+ sh_builtin_func_t *last_shell_builtin, *this_shell_builtin;
+
+ /* flags state affecting the parser */
+ int expand_aliases;
+ int echo_input_at_read;
+ int need_here_doc;
+
+} sh_parser_state_t;
+
+typedef struct _sh_input_line_state_t {
+ char *input_line;
+ size_t input_line_index;
+ size_t input_line_size;
+ size_t input_line_len;
+} sh_input_line_state_t;
+
+/* Let's try declaring these here. */
+extern char *parser_remaining_input __P((void));
+
+extern sh_parser_state_t *save_parser_state __P((sh_parser_state_t *));
+extern void restore_parser_state __P((sh_parser_state_t *));
+
+extern sh_input_line_state_t *save_input_line_state __P((sh_input_line_state_t *));
+extern void restore_input_line_state __P((sh_input_line_state_t *));
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