From: "Idris Samawi Hamid ادريس سماوي حامد via ntg-context" <ntg-context@ntg.nl>
To: "mailing list for ConTeXt users" <ntg-context@ntg.nl>
Cc: "Idris Samawi Hamid ادريس سماوي حامد" <Idris.Hamid@colostate.edu>
Subject: Re: LMTX error processing Adobe Arabic Naskh font
Date: Wed, 10 Nov 2021 09:04:19 -0700 [thread overview]
Message-ID: <op.1cnf9htgejo439@desktop-mt1m160> (raw)
In-Reply-To: <op.1cnf2904ejo439@desktop-mt1m160>
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For III: See attached!
On Wed, 10 Nov 2021 09:00:26 -0700, Idris Samawi Hamid ادريس سماوي حامد
<Idris.Hamid@colostate.edu> wrote:
> Dear Hans and gang,
>
> Consider the following MWE:
>
> ==============
> \definefont[ARABICFONT][file:Adobe_Naskh.ttf*arabic at 28pt]
> % \definefont[ARABICFONT][file:Amiri-Regular_0.ttf*arabic at 28pt]
> % \definefont[ARABICFONT][file:Scheherazade-Regular.ttf*arabic at 28pt]
> % \definefont[ARABICFONT][file:UthmanTN1_Ver10.otf*arabic at 28pt]
> % \definefont[ARABICFONT][file:almfixed.otf*arabic at 28pt]
>
> \disabledirectives[filters.utf.reorder]
> \noheaderandfooterlines
>
> \setupwhitespace[big]
> % \setupinterlinespace[line=4.2ex]
>
> \starttext
> % \startTEXpage[offset=1ex]
> \setupdirections[bidi=global,method=one]
> \righttoleft
> \ARABICFONT
>
> خَ % a
>
> خَل
>
> % \stopTEXpage
> \stoptext
> ==============
>
> Three bugs:
>
> I. If we use start|stoptex and comment start|stopTeXpage, then both
> lines 19 and 21 give an error:
>
> =======
> tex error > tex error on line 20 in file ./test.tex:
>
> lua error:
>
> callback error: [string
> "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2058: attempt to
> index a number value (local 'chainstep')
> stack traceback:
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2058: in
> upvalue 'chainrun'
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2941: in
> function <[string
> "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2514>
> (...tail calls...)
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2065: in
> upvalue 'chainrun'
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2941: in
> local 'handler'
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:3999: in
> field '?'
> ...eXt/tex/texmf-context/tex/context/base/mkxl/node-fnt.lmt:459: in
> upvalue 'nodes_handlers_characters'
> [string "local tonut = nodes.tonut..."]:23: in function <[string
> "local tonut = nodes.tonut..."]:12>
> (...tail calls...)
>
> 10 \setupwhitespace[big]
> 11 % \setupinterlinespace[line=4.2ex]
> 12
> 13 \starttext
> 14 % \startTEXpage[offset=1ex]
> 15 \setupdirections[bidi=global,method=one]
> 16 \righttoleft
> 17 \ARABICFONT
> 18
> 19 خَ
> 20 >>
> 21 خَل
> 22
> 23 % \stopTEXpage
> 24 \stoptext
> =======
>
> Comment line 19 and yu will get virtually the same error.
>
> II. Using start|stopTeXpage, only line 21 gives the error:
>
> =======
> tex error > tex error on line 22 in file ./test.tex:
>
> lua error:
>
> callback error: [string
> "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2058: attempt to
> index a number value (local 'chainstep')
> stack traceback:
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2058: in
> upvalue 'chainrun'
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2941: in
> function <[string
> "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2514>
> (...tail calls...)
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2065: in
> upvalue 'chainrun'
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:2941: in
> local 'handler'
> [string "C:/ConTeXt/tex/texmf-context/tex/context/base..."]:3999: in
> field '?'
> ...eXt/tex/texmf-context/tex/context/base/mkxl/node-fnt.lmt:459: in
> upvalue 'nodes_handlers_characters'
> [string "local tonut = nodes.tonut..."]:23: in function <[string
> "local tonut = nodes.tonut..."]:12>
> (...tail calls...)
>
> 12
> 13 % \starttext
> 14 \startTEXpage[offset=1ex]
> 15 \setupdirections[bidi=global,method=one]
> 16 \righttoleft
> 17 \ARABICFONT
> 18
> 19 خَ % a
> 20
> 21 خَل
> 22 >>
> 23 \stopTEXpage
> 24 % \stoptext
> =======
>
> III Let us switch to almfixed:
>
> If you comment line 21 and use only line 19, then there is no tex error,
> but the result is rendered incorrectly - see test-broken.pdf.
>
> For the correct result, see test-correct.pdf (add a space and any letter
> - uncomment the end of line 19).
>
> Adobe Naskh is not publicly available. The four commented fonts are
> publicly available and generate no tex errors.
>
> Best wishes
> Idris
--
Idris Samawi Hamid, Professor
Department of Philosophy
Colorado State University
Fort Collins, CO 80512
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next prev parent reply other threads:[~2021-11-10 16:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-10 16:00 Idris Samawi Hamid ادريس سماوي حامد via ntg-context
2021-11-10 16:04 ` Idris Samawi Hamid ادريس سماوي حامد via ntg-context [this message]
2021-11-13 23:13 ` Idris Samawi Hamid ادريس سماوي حامد via ntg-context
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