'~&' control sequence broken in FORMAT for Lucid CLIM streams?

• To: clim@BBN.COM
• Subject: '~&' control sequence broken in FORMAT for Lucid CLIM streams?
• From: peter c halverson <halvers@sol.crd.ge.com>
• Date: Tue, 10 Nov 92 11:15:58 EST
• Organization: GE Corporate R&D Center, Schenectady, NY
• Reply-To: Pete Halverson <halverson@crd.ge.com>
• Sun-Distance: 148103563 kilometers (0.990 AU)

Has anyone else encountered the following glitch in Lucid CLIM 1.1?
Workarounds or patches would be appreciated; responses of the form "it's
fixed in 2.0" need not apply.

Pete

==========================================================================
Problem Description:

   The FORMAT control sequence '~&', which starts a fresh line on the
   output stream if necessary, does not seem to work for CLIM output
   streams when it is the first thing in the format control string:
   "~&...".  It works correctly when used on other output streams or when
   the control sequence is anywhere other than the start of the control
   string "...~&...".  Preceding the call to FORMAT with a call to
   FRESH-LINE on the output stream also works correctly.

   Calling the following function with a CLIM output stream should
   demonstrate the problem.  Cases 1 and 2 work correctly, but case 3
   fails, instead of producing identical output.

      (TEST-~& (str)
        (clim:formatting-table (str)
          (clim:formatting-row (str)                                   
            (clim:formatting-cell (str)
              (format str "1. "))
            (clim:formatting-cell (str)
              (format str "hello world!~&goodbye moon!")))
          (clim:formatting-row (str)                                   
            (clim:formatting-cell (str)
              (format str "2. "))
            (clim:formatting-cell (str)
              (format str "hello world!")
              (fresh-line str)
              (format str "goodbye moon!")))
          (clim:formatting-row (str)                                   
            (clim:formatting-cell (str)
              (format str "3. "))
            (clim:formatting-cell (str)
              (format str "hello world!")
              (format str "~&goodbye moon!")))))

    This test case works correctly in Symbolics CLIM 1.1 and Allegro CLIM
    1.1. 

Environment:

   Sun SPARCStation 2 (32Mb Ram), SunOS 4.1.2
   Lucid Common Lisp, Development Environment 4.0.2, 6 July 1990
   Sun-4 Version for SunOS 4.0.x and sunOS 4.1 
   CLIM 1.1
   Features: (:CLIM-1-0 :CLX-MIT-R4 :XLIB :CLX :CLOS :MULTITASKING :LCL4.0
              :MONITORING :PQC :COMPILER :LOOP :IEEE-FLOATING-POINT
              :NEWCFG :SPARC :SUN :UNIX :LCL3.0 :EGC :LUCID :COMMON-LISP)



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