21.4.14 "Reasonable Discussion".

[chise/xemacs-chise.git.1] / lisp / code-process.el

diff --git a/lisp/code-process.el b/lisp/code-process.el
index 09279c8..1b493d5 100644 (file)
--- a/lisp/code-process.el
+++ b/lisp/code-process.el
@@ -1,6 +1,7 @@
 ;;; code-process.el --- Process coding functions for XEmacs.
 
-;; Copyright (C) 1985-1987, 1993, 1994, 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1985-1987, 1993, 1994, 1997, 2003
+;;               Free Software Foundation, Inc.
 ;; Copyright (C) 1995 Ben Wing
 ;; Copyright (C) 1997 MORIOKA Tomohiko
 
@@ -11,8 +12,6 @@
 
 ;; This file is part of XEmacs.
 
-;; This file is very similar to code-process.el
-
 ;; XEmacs 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)
@@ -28,6 +27,10 @@
 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 ;; 02111-1307, USA.
 
+;;; Commentary:
+
+;; This file has some similarities to code-files.el.
+
 ;;; Code:
 
 (defvar process-coding-system-alist nil
@@ -60,7 +63,12 @@ If BUFFER is 0, `call-process' returns immediately with value nil.
 Otherwise it waits for PROGRAM to terminate and returns a numeric exit status
  or a signal description string.
 If you quit, the process is killed with SIGINT, or SIGKILL if you
- quit again."
+ quit again.
+
+Coding systems are taken from `coding-system-for-read' for input and
+`coding-system-for-write' for output if those variables are bound.
+Otherwise they are looked up in `process-coding-system-alist'.  If not
+found, they default to `nil' for both input and output."
   (let* ((coding-system-for-read
          (or coding-system-for-read
              (let (ret)
@@ -105,7 +113,12 @@ If BUFFER is 0, returns immediately with value nil.
 Otherwise waits for PROGRAM to terminate
 and returns a numeric exit status or a signal description string.
 If you quit, the process is first killed with SIGINT, then with SIGKILL if
-you quit again before the process exits."
+you quit again before the process exits.
+
+Coding systems are taken from `coding-system-for-read' for input and
+`coding-system-for-write' for output if those variables are bound.
+Otherwise they are looked up in `process-coding-system-alist'.  If not
+found, they default to `nil' for both input and output."
   (let ((temp
         (make-temp-name
          (concat (file-name-as-directory (temp-directory)) "emacs"))))
@@ -151,8 +164,12 @@ BUFFER is the buffer or (buffer-name) to associate with the process.
  with any buffer
 Third arg is program file name.  It is searched for as in the shell.
 Remaining arguments are strings to give program as arguments.
-INCODE and OUTCODE specify the coding-system objects used in input/output
- from/to the process."
+
+Coding systems are taken from `coding-system-for-read' for input and
+`coding-system-for-write' for output if those variables are bound.
+Otherwise they are looked up in `process-coding-system-alist'.  If not
+found, they default to `undecided' for input and `nil' (binary) for
+output."
   (let (cs-r cs-w)
     (let (ret)
       (catch 'found