Re: strange result for escaping "\" with other font-name

[Masamichi HOSODA]

>>>>>> Second, your 2.19.26's fontconfig configure files
>>>>>> do not seem to have substitute settings.
>>>>>
>>>>> It's not clear to me why this happens. Is it a LilyPond-problem or
>>>>> something at my part?
>>>>> With 2.18.2 and 2.19.26 I'm on a 64-bit LINUX
>>>>> Trying with a build from master, lilyDev (32bit Debian), I do get
>>>>> substitute settings
>>>>>
>>>>> If I try
>>>>> \version "2.19.26"
>>>>> \markup \override #'(font-name . "not existing font") "\\<==what?"
>>>>>
>>>>> I do get substitute settings as well.
>>>>
>>>> According to the log file, your 2.19.26's fontconfig
>>>> default top configure file is
>>>> /home/hermann/lilydevel/usr/etc/fonts/fonts.conf
>>>>
>>>> And, maybe,
>>>> /home/hermann/lilydevel/usr/etc/fonts/local.conf
>>>> /home/hermann/lilydevel/usr/etc/fonts/conf.d/*.conf
>>>> are fontconfig auxiliary configure files.
>>>>
>>>> Your 2.18.2's one are
>>>> /home/hermann/lilypond/usr/etc/fonts/fonts.conf
>>>> /home/hermann/lilypond/usr/etc/fonts/local.conf
>>>> /home/hermann/lilypond/usr/etc/fonts/conf.d/*.conf
>>>>
>>>> Would you compare them?
>>>
>>> I don't have the skills to appraise what I see.
>>> Here's a simple diff. Is this sufficient?
>>>
>>> diff /home/hermann/lilydevel/usr/etc/fonts/fonts.conf
>>> /home/hermann/lilypond/usr/etc/fonts/fonts.conf
>>> 28,29d27
>>> <     <dir prefix="xdg">fonts</dir>
>>> <     <!-- the following element will be removed in the future -->
>>> 39c37
>>> <         <edit name="family" mode="assign" binding="same">
>>> ---
>>>>         <edit name="family" mode="assign">
>>> 51c49
>>> <         <edit name="family" mode="assign" binding="same">
>>> ---
>>>>         <edit name="family" mode="assign">
>>> 63c61
>>> <         <edit name="family" mode="assign" binding="same">
>>> ---
>>>>         <edit name="family" mode="assign">
>>> 76,77d73
>>> <     <cachedir prefix="xdg">fontconfig</cachedir>
>>> <     <!-- the following element will be removed in the future -->
>>
>> Would you try following command?
>>
>> $ diff -ursN /home/hermann/lilydevel/usr/etc/fonts 
>> /home/hermann/lilypond/usr/etc/fonts
> 
> I did
> diff -ursN /home/hermann/lilydevel/usr/etc/fonts
> /home/hermann/lilypond/usr/etc/fonts > log.txt 2>&1
> 
> last line reads:
> Files /home/hermann/lilydevel/usr/etc/fonts/local.conf and
> /home/hermann/lilypond/usr/etc/fonts/local.conf are identical
> 
> Do you need the entire file (it has 2000 lines)?

Yes, please.