Re: [NTG-context] LMTX error processing Adobe Arabic Naskh font

2021-11-13 Thread Idris Samawi Hamid ادريس سماوي حامد via ntg-context
Problems I and II are apparently solved in the latest update. As for III,  
the following works:


\definefont[ARABICFONT][file:almfixed.otf*arabic at 28pt]

\noheaderandfooterlines
\setupwhitespace[big]

% \starttext
\startTEXpage[offset=1ex]
% \setupdirections[bidi=global,method=one]
\righttoleft
% \setupalign[r2l]
% \dontleavehmode \setupalign[r2l]
\ARABICFONT

\utfchar{"062E}\utfchar{"064E}\utfchar{"200D}
\stopTEXpage
% \stoptext

As Hans explained off-list, TEXpage interacts with hmode and vmode in ways  
that may appear unpredictable in some circumstances. In this case the  
circumstance is


% \setupdirections[bidi=global,method=one]

Uncommenting this line will bring the bidi issue back, but it's not needed  
for the desired result.


Best wishes
Idris

On Wed, 10 Nov 2021 09:00:26 -0700, Idris Samawi Hamid ادريس سماوي حامد  
via ntg-context  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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Re: [NTG-context] LMTX error processing Adobe Arabic Naskh font

2021-11-10 Thread Idris Samawi Hamid ادريس سماوي حامد via ntg-context

For III: See attached!

On Wed, 10 Nov 2021 09:00:26 -0700, Idris Samawi Hamid ادريس سماوي حامد  
 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

test-broken.pdf
Description: Adobe PDF document


test-correct.pdf
Description: Adobe PDF document
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[NTG-context] LMTX error processing Adobe Arabic Naskh font

2021-11-10 Thread Idris Samawi Hamid ادريس سماوي حامد via ntg-context

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
___
If your question is of interest to others as well, please add an entry to the 
Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
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