Re: [NTG-context] problem with math: "\left" leads to "udefined symbol" --solved (sort of)

2017-01-24 Thread Hans Hagen 

On 1/24/2017 4:47 PM, j. van den hoff wrote:

well after incrementally deleting most everything from my document I now
seem to have a reproducible example:

8<
\definesynonyms[MySymbol][MySymbols][\meaning]
   \MySymbol [whaever] {this} {  means }

\starttext
\startformula
x = \left ( 1 + 2 \right )
\stopformula
\stoptext
8<

the apparent "culprit" is the presence of the `\definesynonyms' stuff.
without it the rest (identical to your minimal example) compiles. with
it it does not... remember that I am really unexperienced with
`context': at the time (2 years ago), when I first tried this, it
worked. I now realize (after reading up on the `definesynonyms' syntax
again ...) that
in the definition a _command_ has to go into the third bracket.
seemingly at the time I was just putting a placeholder `\meaning' there
(never attempting to use it as a command acting on the explanatory text
for that symbol definition but only wanting a glossary.

the strange thing (for me) is that this worked just fine two years ago,
now it does produce a very strange error as described. question is why.

but replacing `\meaning' by `\infull' suffices to restore sane behaviour.

while I understand, that I did something stupid (putting a non-existent
command `\meaning' in the definition), I would have presumed that this
might trigger an error at that place rather than making `\left ('
suddenly an undefined control sequence. any explanation what is going on
here would be greatly appreciated.


\meaning is a primitive ... best use \UpperCase names for such commands 
... imagine that you overload \relax or \hbox or ...





On Tue, 24 Jan 2017 15:02:38 +0100, Hans Hagen  wrote:


 this just works here ... so can others confirm it?
 \starttext
 \startformula
x =  \left ( 1 + 2 \right )
\stopformula
 \stoptext






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Re: [NTG-context] problem with math: "\left" leads to "udefined symbol" --solved (sort of)

2017-01-24 Thread j. van den hoff 
well after incrementally deleting most everything from my document I now  
seem to have a reproducible example:


8<
\definesynonyms[MySymbol][MySymbols][\meaning]
   \MySymbol [whaever] {this} {  means }

\starttext
\startformula
x = \left ( 1 + 2 \right )
\stopformula
\stoptext
8<

the apparent "culprit" is the presence of the `\definesynonyms' stuff.  
without it the rest (identical to your minimal example) compiles. with it  
it does not... remember that I am really unexperienced with `context': at  
the time (2 years ago), when I first tried this, it worked. I now realize  
(after reading up on the `definesynonyms' syntax again ...) that
in the definition a _command_ has to go into the third bracket. seemingly  
at the time I was just putting a placeholder `\meaning' there (never  
attempting to use it as a command acting on the explanatory text for that  
symbol definition but only wanting a glossary.


the strange thing (for me) is that this worked just fine two years ago,  
now it does produce a very strange error as described. question is why.


but replacing `\meaning' by `\infull' suffices to restore sane behaviour.


while I understand, that I did something stupid (putting a non-existent  
command `\meaning' in the definition), I would have presumed that this  
might trigger an error at that place rather than making `\left (' suddenly  
an undefined control sequence. any explanation what is going on here would  
be greatly appreciated.




On Tue, 24 Jan 2017 15:02:38 +0100, Hans Hagen  wrote:


 this just works here ... so can others confirm it?
 \starttext
 \startformula
x =  \left ( 1 + 2 \right )
\stopformula
 \stoptext



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Re: [NTG-context] problem with math: "\left" leads to "udefined symbol"

2017-01-24 Thread Roger Mason 
Hans Hagen  writes:

>
> this just works here ... so can others confirm it?
>
> \starttext
>
> \startformula
> x =  \left ( 1 + 2 \right )
> \stopformula
>
> \stoptext
>
>
Here too:

resolvers   | trees | analyzing 'home:texmf'
resolvers   | globbing | confusing filename, name: 'README.txt', lower: 
'readme.txt', already: 'ReadMe.txt'
mtx-context | ConTeXt Process Management 0.63
mtx-context |
mtx-context | main context file: 
/opt/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv
mtx-context | current version: 2016.10.14 17:19

Roger
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Re: [NTG-context] problem with math: "\left" leads to "udefined symbol"

2017-01-24 Thread j. van den hoff 
On Tue, 24 Jan 2017 15:15:09 +0100, luigi scarso   
wrote:



On Tue, Jan 24, 2017 at 3:02 PM, Hans Hagen  wrote:

this just works here ... so can others confirm it?

\starttext

\startformula
x =  \left ( 1 + 2 \right )
\stopformula

\stoptext





no problem here with

This is LuaTeX, Version 1.0.2 (TeX Live 2017/dev)
 system commands enabled.
system  > ConTeXt  ver: 2017.01.17 16:50 MKIV beta  fmt:
2017.1.23  int: english/english


in fact, this minimal example works for me too. BUT adding those three  
lines (\startformula  \stopformula) to my actual document makes  
compilation fail. no idea what's happening here. I will now try to reduce  
my original document to a hopefully minimal example triggering the  
described behaviour.


any hints, where to look regarding possible reasons of the observed  
behavior would of course be appreciated.







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Re: [NTG-context] problem with math: "\left" leads to "udefined symbol"

2017-01-24 Thread luigi scarso 
On Tue, Jan 24, 2017 at 3:02 PM, Hans Hagen  wrote:
> this just works here ... so can others confirm it?
>
> \starttext
>
> \startformula
> x =  \left ( 1 + 2 \right )
> \stopformula
>
> \stoptext
>
>


no problem here with

This is LuaTeX, Version 1.0.2 (TeX Live 2017/dev)
 system commands enabled.
system  > ConTeXt  ver: 2017.01.17 16:50 MKIV beta  fmt:
2017.1.23  int: english/english

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Re: [NTG-context] problem with math: "\left" leads to "udefined symbol"

2017-01-24 Thread Hans Hagen 

On 1/24/2017 2:33 PM, j. van den hoff wrote:

On Tue, 24 Jan 2017 14:15:08 +0100, Hans Hagen  wrote:

thanks for the quick reply and sorry for my not being precise.
correction/addition follows:


On 1/24/2017 11:33 AM, j. van den hoff wrote:

hi everybody,

after a 2 year hiatus I'm just giving `context' a second try (so, really
not much experience so far).

I updated to the latest version (0.63) before proceeding.


0.63 what? luatex? then you need to check things as we're beyond 1.00 now


I was refering to the `context --version' output:

resolvers   | trees | analyzing 'home:texmf'
mtx-context | ConTeXt Process Management 0.63
mtx-context |
mtx-context | main context file:
path_to/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv
mtx-context | current version: 2017.01.17 17:37

I _was_ under the impression that this is current since I did an update
and `current version' gives a date from last week. or that's what I
believed would happen, when re-running `first-setup.sh': am I mistaken?
if this is a stupid question I'd accept a RTFM answer ;-).


the context version is: 2017.01.17 17:37

(best also mention the reported luatex version in such cases)

the 0.63 hardly changes as mtx-context hardly changes





two observations:

1.
in a new document including assorted equations everything went fine
until I tried something like

\startformula
x = \left 1 + 2 \right
\stopformula


\left( ... \right)

left and right take an argument that has to be some known open or
close operator


yes, I know. sorry for the glitch. I _meant_

\startformula
  x =  \left ( 1 + 2 \right )
 \stopformula

and _that_ is what's still causes the `Undefined control sequence'
(both, in the new as well as the two year old unmodified document) --
actually it is thus reported in
the error message (in the previous mail, too):

"l.472 x = \left (
1 + 2 \right )"



this just works here ... so can others confirm it?

\starttext

\startformula
x =  \left ( 1 + 2 \right )
\stopformula

\stoptext



which caused an error:

8<--
 ! Undefined control sequence


\strc_synonyms_insert_meaning ...urrentsynonymtag
  {#2}\fastsetup
{\??simplel...
\math_left ...ame \??mathleft \meaning \nexttoken
  \endcsname
\expandafter \l...
l.472 x = \left (
1 + 2 \right )
8<--

2.
an old document (not modified these 2 years) does no longer compile due
to apparently the same problem (not understanding `\left', `\right'.

question: my understanding is, that `context' supports "everything" out
of the box (notably equations) and there is no need for explicit loading
of additional packages? so `\left' etc. _should be defined (and it
_used_ to work 2 years ago)? what am I missing?

thx, joerg










--

-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
   tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] problem with math: "\left" leads to "udefined symbol"

2017-01-24 Thread j. van den hoff 

On Tue, 24 Jan 2017 14:15:08 +0100, Hans Hagen  wrote:

thanks for the quick reply and sorry for my not being precise.  
correction/addition follows:



On 1/24/2017 11:33 AM, j. van den hoff wrote:

hi everybody,

after a 2 year hiatus I'm just giving `context' a second try (so, really
not much experience so far).

I updated to the latest version (0.63) before proceeding.


0.63 what? luatex? then you need to check things as we're beyond 1.00 now


I was refering to the `context --version' output:

resolvers   | trees | analyzing 'home:texmf'
mtx-context | ConTeXt Process Management 0.63
mtx-context |
mtx-context | main context file:  
path_to/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv

mtx-context | current version: 2017.01.17 17:37

I _was_ under the impression that this is current since I did an update  
and `current version' gives a date from last week. or that's what I  
believed would happen, when re-running `first-setup.sh': am I mistaken? if  
this is a stupid question I'd accept a RTFM answer ;-).





two observations:

1.
in a new document including assorted equations everything went fine
until I tried something like

\startformula
x = \left 1 + 2 \right
\stopformula


\left( ... \right)

left and right take an argument that has to be some known open or close  
operator


yes, I know. sorry for the glitch. I _meant_

\startformula
  x =  \left ( 1 + 2 \right )
 \stopformula

and _that_ is what's still causes the `Undefined control sequence' (both,  
in the new as well as the two year old unmodified document) -- actually it  
is thus reported in

the error message (in the previous mail, too):

"l.472 x = \left (
1 + 2 \right )"




which caused an error:

8<--
 ! Undefined control sequence


\strc_synonyms_insert_meaning ...urrentsynonymtag
  {#2}\fastsetup
{\??simplel...
\math_left ...ame \??mathleft \meaning \nexttoken
  \endcsname
\expandafter \l...
l.472 x = \left (
1 + 2 \right )
8<--

2.
an old document (not modified these 2 years) does no longer compile due
to apparently the same problem (not understanding `\left', `\right'.

question: my understanding is, that `context' supports "everything" out
of the box (notably equations) and there is no need for explicit loading
of additional packages? so `\left' etc. _should be defined (and it
_used_ to work 2 years ago)? what am I missing?

thx, joerg







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Re: [NTG-context] problem with math: "\left" leads to "udefined symbol"

2017-01-24 Thread Hans Hagen 

On 1/24/2017 11:33 AM, j. van den hoff wrote:

hi everybody,

after a 2 year hiatus I'm just giving `context' a second try (so, really
not much experience so far).

I updated to the latest version (0.63) before proceeding.


0.63 what? luatex? then you need to check things as we're beyond 1.00 now


two observations:

1.
in a new document including assorted equations everything went fine
until I tried something like

\startformula
x = \left 1 + 2 \right
\stopformula


\left( ... \right)

left and right take an argument that has to be some known open or close 
operator



which caused an error:

8<--
 ! Undefined control sequence


\strc_synonyms_insert_meaning ...urrentsynonymtag
  {#2}\fastsetup
{\??simplel...
\math_left ...ame \??mathleft \meaning \nexttoken
  \endcsname
\expandafter \l...
l.472 x = \left (
1 + 2 \right )
8<--

2.
an old document (not modified these 2 years) does no longer compile due
to apparently the same problem (not understanding `\left', `\right'.

question: my understanding is, that `context' supports "everything" out
of the box (notably equations) and there is no need for explicit loading
of additional packages? so `\left' etc. _should be defined (and it
_used_ to work 2 years ago)? what am I missing?

thx, joerg




--

-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
   tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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[NTG-context] problem with math: "\left" leads to "udefined symbol"

2017-01-24 Thread j. van den hoff 

hi everybody,

after a 2 year hiatus I'm just giving `context' a second try (so, really  
not much experience so far).


I updated to the latest version (0.63) before proceeding.

two observations:

1.
in a new document including assorted equations everything went fine until  
I tried something like


\startformula
x = \left 1 + 2 \right
\stopformula

which caused an error:

8<--
 ! Undefined control sequence


\strc_synonyms_insert_meaning ...urrentsynonymtag
  {#2}\fastsetup  
{\??simplel...

\math_left ...ame \??mathleft \meaning \nexttoken
  \endcsname \expandafter  
\l...

l.472 x = \left (
1 + 2 \right )
8<--

2.
an old document (not modified these 2 years) does no longer compile due to  
apparently the same problem (not understanding `\left', `\right'.


question: my understanding is, that `context' supports "everything" out of  
the box (notably equations) and there is no need for explicit loading of  
additional packages? so `\left' etc. _should be defined (and it _used_ to  
work 2 years ago)? what am I missing?


thx, joerg

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