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Bash-4.4 distribution sources and documentation

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This commit is contained in:
Chet Ramey 2016-09-15 16:59:08 -04:00
commit a0c0a00fc4
588 changed files with 130746 additions and 80164 deletions
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27
eval.c
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@ -30,6 +30,8 @@
#include "bashansi.h"
#include <stdio.h>
#include <signal.h>
#include "bashintl.h"
#include "shell.h"
@ -53,6 +55,7 @@ extern int last_command_exit_value, stdin_redir;
extern int need_here_doc;
extern int current_command_number, current_command_line_count, line_number;
extern int expand_aliases;
extern char *ps0_prompt;
#if defined (HAVE_POSIX_SIGNALS)
extern sigset_t top_level_mask;
@ -85,7 +88,8 @@ reader_loop ()
unlink_fifo_list ();
#endif /* PROCESS_SUBSTITUTION */
/* XXX - why do we set this every time through the loop? */
/* XXX - why do we set this every time through the loop? And why do
it if SIGINT is trapped in an interactive shell? */
if (interactive_shell && signal_is_ignored (SIGINT) == 0)
set_signal_handler (SIGINT, sigint_sighandler);
@ -157,6 +161,22 @@ reader_loop ()
executing = 1;
stdin_redir = 0;
/* If the shell is interactive, expand and display $PS0 after reading a
command (possibly a list or pipeline) and before executing it. */
if (interactive && ps0_prompt)
{
char *ps0_string;
ps0_string = decode_prompt_string (ps0_prompt);
if (ps0_string && *ps0_string)
{
fprintf (stderr, "%s", ps0_string);
fflush (stderr);
}
free (ps0_string);
}
execute_command (current_command);
exec_done:
@ -224,7 +244,10 @@ parse_command ()
/* Allow the execution of a random command just before the printing
of each primary prompt. If the shell variable PROMPT_COMMAND
is set then the value of it is the command to execute. */
if (interactive && bash_input.type != st_string)
/* The tests are a combination of SHOULD_PROMPT() and prompt_again()
from parse.y, which are the conditions under which the prompt is
actually printed. */
if (interactive && bash_input.type != st_string && parser_expanding_alias() == 0)
{
command_to_execute = get_string_value ("PROMPT_COMMAND");
if (command_to_execute)