Change Font Region in Minibuffer

[Randy Parker <PARKER@OZ>]

In Symbolics 3600 Release 6.0, IP-TCP 29.0, AISite 9.4,
microcode TMC5-MIC 319, on Lisp Machine Frank Sinatra:

Why is ^X ^J defined in the minibuffer comtab if
it can't work and gets you stuck?  In general, this seems to
be the exception.

>>Break: 
While in the function PROCESS-WAIT  (:METHOD TV:SHEET :OUTPUT-HOLD-EXCEPTION)  TV:SHEET-PREPARE-SHEET-INTERNAL

PROCESS-WAIT:
   Arg 0 (WHOSTATE): "Output Hold"
   Local 0 (WHOSTATE): #<BREAK 30400735>
   Arg 1 (FUNCTION): #<DTP-COMPILED-FUNCTION (:INTERNAL (:METHOD TV:SHEET :OUTPUT-HOLD-EXCEPTION) 0) 22346365>
   Local 1 (FUNCTION): #<DTP-LOCATIVE 43440761>
   Rest arg (ARGUMENTS): (#<TYPEIN-WINDOW Typein Window 2 43241011 deexposed>)
   Local 2 (ARGUMENTS): #<DTP-LOCATIVE 43440760>

(:METHOD TV:SHEET :OUTPUT-HOLD-EXCEPTION):  (P.C. = 101)
   Arg 0 (SELF): #<TYPEIN-WINDOW Typein Window 2 43241011 deexposed>
   Arg 1 (SELF-MAPPING-TABLE): #<Map to flavor TV:SHEET -- 0. IV's, 1. FL's 105076276>
   Arg 2 (OPERATION): :OUTPUT-HOLD-EXCEPTION

TV:SHEET-PREPARE-SHEET-INTERNAL:  (P.C. = 35)
   Arg 0 (SHEET): #<TYPEIN-WINDOW Typein Window 2 43241011 deexposed>

(:METHOD TV:SHEET :TYO):  (P.C. = 45)
   Arg 0 (SELF): #<TYPEIN-WINDOW Typein Window 2 43241011 deexposed>
   Arg 1 (SELF-MAPPING-TABLE): #<Map to flavor TV:SHEET -- 0. IV's, 1. FL's 105076276>
   Arg 2 (OPERATION): :TYO
   Arg 3 (CHAR): 65
   --Defaulted args:--
   Arg 4 (FONT): NIL

(:METHOD ZWEI:TYPEIN-WINDOW :COMBINED :TYO):  (P.C. = 17)
   Arg 0 (SELF): #<TYPEIN-WINDOW Typein Window 2 43241011 deexposed>
   Arg 1 (SELF-MAPPING-TABLE): #<Map to flavor ZWEI:TYPEIN-WINDOW -- 1. IV's, 7. FL's 105076262>
   Arg 2 (.OPERATION.): :TYO
   Rest arg (.DAEMON-CALLER-ARGS.): (65)

FORMAT:FORMAT-CHARACTER:  (P.C. = 321)
   Arg 0 (STREAM): #<TYPEIN-WINDOW Typein Window 2 43241011 deexposed>
   Arg 1 (CH): 65
   Arg 2 (LONG-BITS): NIL
   Arg 3 (LONG-NAME): NIL
   Arg 4 (SYMBOL-HELP): NIL
   Arg 5 (READABLE): NIL

FORMAT:FORMAT-CTL-CHARACTER:  (P.C. = 20)
   Arg 0 (ARG): 65

(:PROPERTY FORMAT:C FORMAT:CTL-ONE-ARG):  (P.C. = 3)
   Arg 0 (ARG): 65
   Arg 1 (IGNORE): NIL

Rest of stack:
FORMAT:FORMAT-CTL-OP:  (P.C. = 21)
FORMAT:FORMAT-CTL-STRING:  (P.C. = 101)
FORMAT:  (P.C. = 66)
ZWEI:TYPEIN-LINE-MORE:  (P.C. = 13)
ZWEI:INPUT-FONT-NAME:  (P.C. = 147)
ZWEI:COM-CHANGE-FONT-REGION:  (P.C. = 17)
ZWEI:COMMAND-EXECUTE:  (P.C. = 57)
ZWEI:MAKE-EXTENDED-COMMAND-INTERNAL:  (P.C. = 107)
Closure of ZWEI:MAKE-EXTENDED-COMMAND-INTERNAL:
ZWEI:COMMAND-EXECUTE:  (P.C. = 57)
ZWEI:PROCESS-COMMAND-CHAR:  (P.C. = 14)
(:METHOD ZWEI:EDITOR :EDIT):  (P.C. = 233)
ZWEI:COMMAND-LOOP:  (P.C. = 73)
ZWEI:EDIT-IN-MINI-BUFFER:  (P.C. = 130)
ZWEI:COMPLETING-READ-FROM-MINI-BUFFER:  (P.C. = 67)
ZWEI:GET-EXTENDED-COMMAND:  (P.C. = 11)
ZWEI:COM-EXTENDED-COMMAND:  (P.C. = 13)
ZWEI:COMMAND-EXECUTE:  (P.C. = 57)
ZWEI:PROCESS-COMMAND-CHAR:  (P.C. = 14)
(:METHOD ZWEI:EDITOR :EDIT):  (P.C. = 233)
(:METHOD ZWEI:TOP-LEVEL-EDITOR :COMBINED :EDIT):  (P.C. = 60)
ZWEI:ZMACS-WINDOW-TOP-LEVEL:  (P.C. = 51)
SI:PROCESS-TOP-LEVEL:  (P.C. = 54)