(x_term_init): Unblock input around call1.

[bpt/emacs.git] / lispref / processes.texi

diff --git a/lispref/processes.texi b/lispref/processes.texi
index 16aa65a..289ae42 100644 (file)
--- a/lispref/processes.texi
+++ b/lispref/processes.texi
@@ -1,6 +1,7 @@
 @c -*-texinfo-*-
 @c This is part of the GNU Emacs Lisp Reference Manual.
-@c Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1998 Free Software Foundation, Inc. 
+@c Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1998, 1999
+@c   Free Software Foundation, Inc. 
 @c See the file elisp.texi for copying conditions.
 @setfilename ../info/processes
 @node Processes, Display, Abbrevs, Top
@@ -314,7 +315,7 @@ as it comes in.  For details, see the description of
 @code{call-process}, above.  If @var{destination} is the integer 0,
 @code{call-process-region} discards the output and returns @code{nil}
 immediately, without waiting for the subprocess to finish (this only
-works if asynchronous subprocess are supported).
+works if asynchronous subprocesses are supported).
 
 The remaining arguments, @var{args}, are strings that specify command
 line arguments for the program.
@@ -365,7 +366,6 @@ inputinput@point{}
 @end defun
 
 @defun shell-command-to-string command
-@tindex shell-command-to-string
 This function executes @var{command} (a string) as a shell command,
 then returns the command's output as a string.
 @end defun
@@ -594,7 +594,6 @@ This function returns the name of @var{process}.
 @end defun
 
 @defun process-contact process
-@tindex process-contact
 This function returns @code{t} for an ordinary child process, and
 @code{(@var{hostname} @var{service})} for a net connection
 (@pxref{Network}).
@@ -663,7 +662,6 @@ instead of a terminal (see @code{process-connection-type} in
 @end defun
 
 @defun process-coding-system process
-@tindex process-coding-system
 This function returns a cons cell describing the coding systems in use
 for decoding output from @var{process} and for encoding input to
 @var{process} (@pxref{Coding Systems}).  The value has this form:
@@ -674,7 +672,6 @@ for decoding output from @var{process} and for encoding input to
 @end defun
 
 @defun set-process-coding-system process decoding-system encoding-system
-@tindex set-process-coding-system
 This function specifies the coding systems to use for subsequent output
 from and input to @var{process}.  It will use @var{decoding-system} to
 decode subprocess output, and @var{encoding-system} to encode subprocess
@@ -878,7 +875,7 @@ which is called the associated buffer of the process, or a function
 called the @dfn{filter function} can be called to act on the output.  If
 the process has no buffer and no filter function, its output is
 discarded.
-
+ 
   Output from a subprocess can arrive only while Emacs is waiting: when
 reading terminal input, in @code{sit-for} and @code{sleep-for}
 (@pxref{Waiting}), and in @code{accept-process-output} (@pxref{Accepting
@@ -888,6 +885,13 @@ process and only then specify its buffer or filter function; no output
 can arrive before you finish, if the code in between does not call any
 primitive that waits.
 
+  It is impossible to separate the standard output and standard error
+streams of the subprocess, because Emacs normally spawns the subprocess
+inside a pseudo-TTY, and a pseudo-TTY has only one output channel.  If
+you want to keep the output to those streams separate, you should
+redirect one of them to a file--for example, by using an appropriate
+shell command.
+
   Subprocess output is normally decoded using a coding system before the
 buffer or filter function receives it, much like text read from a file.
 You can use @code{set-process-coding-system} to specify which coding