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bug#39133: 28.0.50; Emacs slowdown on special char


From: Robert Pluim
Subject: bug#39133: 28.0.50; Emacs slowdown on special char
Date: Fri, 24 Jan 2020 14:50:10 +0100

>>>>> On Fri, 24 Jan 2020 15:40:19 +0200, Eli Zaretskii <address@hidden> said:

    >> From: Robert Pluim <address@hidden>
    >> Cc: address@hidden,  address@hidden,
    >> address@hidden,  address@hidden
    >> Date: Fri, 24 Jan 2020 14:09:22 +0100
    >> 
    >> >> Rather than duplicate that code, I moved the FONT_INVALID_CODE check
    >> >> up. This works for me:
    >> 
    Eli> Looks reasonable, thanks.
    >> 
    >> Except it crashes under -nw.

    Eli> Yes, because the call to the font driver should only be done when
    Eli> 'font_object' is a font object (it isn't on TTY frames).  Otherwise,
    Eli> simply assign FONT_INVALID_CODE to 'code'.

Yes, I worked that out. A simple crash, for once :-)

Robert





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