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Re: pine/pico vt control characters bug
From: mouse () RODENTS MONTREAL QC CA (der Mouse)
Date: Sat, 25 Apr 1998 18:26:21 -0400


Pico, an editor included with pine 3.96 package, handles vt control
characters (eg. 0x9B) improperly, so it's possible to do almost
anything when normal text file is viewed with pico.

This depends entirely on the terminal (or emulator) in use; I just now
tried sending 0x9b 0x63 to one of my windows and got a greater-or-equal
sign and a lowercase c, nothing odd at all.

-    else if (c.c < 0x20 || c.c == 0x7F) {
+    else if (c.c < 0x20 || c.c == 0x7F || c.c == 0x9B) {

If you're going to blindly assume 00-20, 7f, and 9b, you probably want
to hit all of C1 space as well, as in

+    else if (c.c < 0x20 || (c.c >= 0x7F && c.c <= 0x9F)) {

(I'm assuming c.c is a specifically unsigned char, or something wider
than a char, or the "< 0x20" test breaks the whole high half anyway).

                                        der Mouse

                               mouse () rodents montreal qc ca
                     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B



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