From: Chris Hanson <org/chris-hanson/cph>
Date: Fri, 19 Jul 2019 03:26:56 +0000 (-0400)
Subject: Edwin: force subprocess I/O ports to use iso-8859-1 coding.
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=fc4113bab7fddd0f66370e82146c8925e02c624f;p=mit-scheme.git

Edwin: force subprocess I/O ports to use iso-8859-1 coding.

There may still be a problem with synchronous subprocesses, since we don't have
a way to get at those ports.  If the process writes UTF-8, then the I/O copier
will try to write unicode chars to a buffer, and I'm not sure what will happen
in that case.  It might just ignore the upper bits.
---

diff --git a/src/edwin/process.scm b/src/edwin/process.scm
index 1c2d8f835..71d0fe7b0 100644
--- a/src/edwin/process.scm
+++ b/src/edwin/process.scm
@@ -159,6 +159,12 @@ Initialized from the SHELL environment variable."
 	   (let ((channel (subprocess-input-channel subprocess)))
 	     (if channel
 		 (channel-nonblocking channel)))
+           (let ((fix-port
+                  (lambda (port)
+                    (if (and port (port/supports-coding? port))
+                        (port/set-coding port 'iso-8859-1)))))
+             (fix-port (subprocess-input-port subprocess))
+             (fix-port (subprocess-output-port subprocess)))
 	   (set-process-status-registration!
 	    process
 	    (register-subprocess-event