BASH PATCH REPORT
			     =================

Bash-Release:	5.2
Patch-ID:	bash52-003

Bug-Reported-by:	 D630 <d630@posteo.net>
Bug-Reference-ID:	<cf8523d58ac75b9ffba9519faa175618@posteo.de>
Bug-Reference-URL:	https://lists.gnu.org/archive/html/bug-bash/2022-10/msg00092.html

Bug-Description:

Command substitutions need to preserve newlines instead of replacing them
with semicolons, especially in the presence of multiple here-documents.

Patch (apply with `patch -p0'):

*** ../bash-5.2-patched/print_cmd.c	2022-07-26 09:16:39.000000000 -0400
--- print_cmd.c	2022-10-17 10:41:06.000000000 -0400
***************
*** 298,305 ****
--- 298,307 ----
  	      {
  		char c = command->value.Connection->connector;
+ 		int was_newline;
  
  		s[0] = printing_comsub ? c : ';';
  		s[1] = '\0';
  
+ 		was_newline = deferred_heredocs == 0 && was_heredoc == 0 && c == '\n';
  		if (deferred_heredocs == 0)
  		  {
***************
*** 315,318 ****
--- 317,322 ----
  		if (inside_function_def)
  		  cprintf ("\n");
+ 		else if (printing_comsub && c == '\n' && was_newline == 0)
+ 		  cprintf ("\n");	/* preserve newlines in comsubs but don't double them */
  		else
  		  {
***************
*** 1366,1370 ****
      }
    else
!     newline ("}");
  
    dispose_command (cmdcopy);
--- 1371,1379 ----
      }
    else
!     {
!       /* { */
!       newline ("}");
!       was_heredoc = 0;		/* not printing any here-documents now */
!     }
  
    dispose_command (cmdcopy);
***************
*** 1443,1447 ****
      }
    else
!     newline ("}");
  
    result = the_printed_command;
--- 1452,1459 ----
      }
    else
!     {	/* { */
!       newline ("}");
!       was_heredoc = 0;
!     }
  
    result = the_printed_command;
*** ../bash-5.2/patchlevel.h	2020-06-22 14:51:03.000000000 -0400
--- patchlevel.h	2020-10-01 11:01:28.000000000 -0400
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 2
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 3
  
  #endif /* _PATCHLEVEL_H_ */