DocBook change: use a stack of fonts

[Kornel Benko]

Am Tue, 27 Dec 2022 02:13:15 +0100
schrieb Thibaut Cuvelier <dourouc05 at gmail.com>:

> Dear list,
> 
> To solve https://www.lyx.org/trac/ticket/12585, I wrote the attached patch.
> Basically, LyX now considers the order of font tags when closing them,
> otherwise you get strange results like in the ticket. The bug is quite
> serious, actually, even though I don't believe many users will hit it.
> 
> I'd like help on two points:
> - code review
> - running the test suite (ctest -R "_docbook")
> 
> Currently, I cannot run the DocBook test suite due to Perl errors. I'm
> quite ignorant about Perl, so I'm not sure what I should do about the
> issue. I understood that the XML::Parser module can't be found, but perl -e
> "use XML::Parser" and perl -e "use XML::Parser::Expat" run without
> troubles. Here is the log from CTest:
> 
> 266: -- Expected result file
> "D:/LyX/lyx-unstable/cmake-build-debug/autotests/out-home/AbC_9MGmGf/export/docbook/LFUNs.xml"
> exists
> 266: -- Calling C:/Strawberry/perl/bin/perl.exe
> "D:/LyX/lyx-unstable/development/autotests/xmlParser.pl"
> "export/docbook/LFUNs.xml"
> 266: -- Can't load
> 'C:/Strawberry/perl/vendor/lib/auto/XML/Parser/Expat/Expat.xs.dll' for
> module XML::Parser::Expat: load_file:The specified module could not be
> found at C:/Strawberry/perl/lib/XSLoader.pm line 93.
> 266:  at C:/Strawberry/perl/vendor/lib/XML/Parser/Expat.pm line 29.
> 266: Compilation failed in require at
> C:/Strawberry/perl/vendor/lib/XML/Parser.pm line 18.
> 266: BEGIN failed--compilation aborted at
> C:/Strawberry/perl/vendor/lib/XML/Parser.pm line 22.
> 266: Compilation failed in require at
> D:/LyX/lyx-unstable/development/autotests/xmlParser.pl line 4.
> 266: BEGIN failed--compilation aborted at
> D:/LyX/lyx-unstable/development/autotests/xmlParser.pl line 4.
> 266:
> 266: -- Calling:
> C:/Strawberry/perl/bin/perl.exeD:/LyX/lyx-unstable/development/autotests/filterXml4Sax.pl
>  D:/LyX/lyx-unstable/cmake-build-debug/autotests/out-home/export/docbook/LFUNs.xml
> 266: -- Errors from xmllint: Could not run xmllint
> 266:
> 266: -- Msg Summary:
> 266: -- OK: Exporting
> "D:/LyX/lyx-unstable/cmake-build-debug/autotests/out-home/AbC_9MGmGf/export/docbook/LFUNs.lyx"
> to format docbook5
> 266: -- Error: Checking
> "D:/LyX/lyx-unstable/cmake-build-debug/autotests/out-home/AbC_9MGmGf/export/docbook/LFUNs.xml"
> with xmlParser.pl
> 266: -- Error: Checking
> "D:/LyX/lyx-unstable/cmake-build-debug/autotests/out-home/AbC_9MGmGf/export/docbook/LFUNs.xml"
> with C:/Strawberry/c/bin/xmllint.exe
> 266: -- Exporting export/docbook/LFUNs.lyx to docbook5
> 
> Here is my small debugging session:
> 
> C:\Users\Thibaut\Documents>perl -e "use XML::Parser"
> 
> C:\Users\Thibaut\Documents>perl -e "use XML::Parser::Expat"
> 
> C:\Users\Thibaut\Documents>where perl
> C:\Strawberry\perl\bin\perl.exe
> 
> (By the way, the "lyx-windows-deps-msvc2017" archive should be updated with
> the contents of
> http://xmlsoft.org/sources/win32/64bit/libxml2-2.9.3-win32-x86_64.7z to
> include xmllint.)
> 
> If anyone can lend me a hand either by testing the patch locally or by
> troubleshooting the test suite, I'd be really grateful!
> 
> All the best,
> Thibaut Cuvelier

What could you do, is to call xmlParser.pl directly to check if it working

	$ perl D:/LyX/lyx-unstable/development/autotests/xmlParser.pl some_test_file.xml
This should give the same error. In this case check if
C:/Strawberry/perl/vendor/lib/auto/XML/Parser/Expat/Expat.xs.dll exists. (Maybe it is in
the D: partition?)

	Kornel
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