Bash-4.3 distribution sources and documentation

[platform/upstream/bash.git] / shell.h

diff --git a/shell.h b/shell.h
index 0cc3a92..243e467 100644 (file)
--- a/shell.h
+++ b/shell.h
@@ -1,22 +1,22 @@
 /* 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, 59 Temple Place, Suite 330, Boston, MA 02111 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"
@@ -40,7 +40,6 @@
 #include "sig.h"
 #include "pathnames.h"
 #include "externs.h"
-#include "version.h"
 
 extern int EOF_Reached;
 
@@ -56,7 +55,11 @@ extern int EOF_Reached;
 /* 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
@@ -71,23 +74,29 @@ extern int EOF_Reached;
 #define EX_EXPFAIL     261     /* word expansion failed */
 
 /* 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. */
@@ -119,3 +128,59 @@ extern struct user_info current_user;
 #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;
+  
+} 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 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 *));