* math
@ 2006-01-17 13:50 Hans Hagen
2006-01-18 6:56 ` math sjoerd siebinga
` (3 more replies)
0 siblings, 4 replies; 10+ messages in thread
From: Hans Hagen @ 2006-01-17 13:50 UTC (permalink / raw)
[-- Attachment #1: Type: text/plain, Size: 199 bytes --]
Hi,
Attached is a new version of math-ext
- multiple columns
- alignment per column
See examples in source (mixed &|cr and NC|NR is no longer supported).
That's all the math for this week.
Hans
[-- Attachment #2: math-ext.tex --]
[-- Type: text/x-tex, Size: 12542 bytes --]
%D \module
%D [ file=math-ext,
%D version=2006.01.14,
%D title=\CONTEXT\ Math Macros,
%D subtitle=Extra Macros,
%D author={Hans Hagen \& Taco Hoekwater},
%D date=\currentdate,
%D copyright=\PRAGMA]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
%D This will go into core-mat
%M \ifx\startalign\undefined \input math-ext.tex \fi
% some simple math constructs (based on user requests)
%
% preliminary
\unprotect
% adapted stuff
% we need to make this plain code a bit more 'readable'
\def\openup
{\afterassignment\dopenup\scratchdimen=}
\def\dopenup
{\advance\lineskip \scratchdimen
\advance\baselineskip \scratchdimen
\advance\lineskiplimit\scratchdimen}
\def\jot{.25\bodyfontsize} % plain tex: 3 pt (todo: better name)
\newif\ifdt@p
\def\displ@y % \presetdisplayspacing or so
{\global\dt@ptrue
\openup\jot
\mathsurround\zeropoint
\everycr{\noalign{%
\ifdt@p
\global\dt@pfalse
\ifdim\prevdepth>-\thousandpoint
\vskip-\lineskiplimit
\vskip\normallineskiplimit
\fi
\else
\penalty\interdisplaylinepenalty
\fi}}}
% context (hooks)
\let\normaldispl@y\displ@y
\def\displ@y{\resetdisplaymatheq\normaldispl@y}
\let\presetdisplaymath\displ@y
% plain tex value: \centering = 0pt plus 1000pt minus 1000pt
% plain tex valye: \jot = 3pt
% n>1 #### needed, strange # interaction (maybe we need a toks in recurse ane no macro)
\def\buildeqalign
{\scratchtoks\emptytoks
\dorecurse{\mathalignparameter\c!m}
{\ifnum\recurselevel>\plusone
\appendtoks
\tabskip\mathalignparameter\c!distance&\tabskip\zeropoint
\to\scratchtoks
\fi
\expanded{\scratchtoks{\the\scratchtoks\the\!!toksa}}%
\dorecurse{\numexpr\mathalignparameter\c!n-\plusone\relax}
{\expanded{\scratchtoks{\the\scratchtoks\the\!!toksb}}}}%
\expanded{\scratchtoks{\the\scratchtoks\the\!!toksc}}}
\def\forgetalign
{\tabskip\zeropoint\everycr\emptytoks}
\let\firstineqalign\empty
\let\nextineqalign \empty
\let\leftofeqalign \empty
\let\rightofeqalign\empty
\def\mathineqalign#1{$\forgetalign\displaystyle{{}#1{}}$}
\def\textineqalign#1{$\forgetalign#1$}
\def\eqalign#1% why no halign here, probably because of displaywidth
{\!!toksa{\strut\hfil$\displaystyle{##}$}%
\!!toksb{&$\displaystyle{{}##{}}$\hfil}%
\!!toksc\emptytoks
\buildeqalign
\null\,\vcenter
{\openup\jot
\mathsurround\zeropoint
\expandafter \ialign \expandafter {\the\scratchtoks\crcr#1\crcr}%
}\,}
% preamble is scanned for tabskips so we need the span to prevent an error message
\def\prepareeqalignno
{\!!toksa{\strut\firstineqalign\hfil\leftofeqalign\span\mathineqalign{##}\rightofeqalign\tabskip\zeropoint}%
\!!toksb{&\nextineqalign\leftofeqalign\span\mathineqalign{##}\rightofeqalign\tabskip\zeropoint}%
\!!toksc{\hfil\tabskip\centering&\llap{\span\textineqalign{##}}\tabskip\zeropoint}%
\buildeqalign
\presetdisplaymath
\tabskip\centering}
\def\prepareleqalignno
{\!!toksa{\strut\firstineqalign\hfil\leftofeqalign\span\mathineqalign{##}\rightofeqalign\tabskip\zeropoint}%
\!!toksb{&\nextineqalign\leftofeqalign\span\mathineqalign{##}\rightofeqalign\tabskip\zeropoint}%
\!!toksc{\hfil\tabskip\centering&\kern-\displaywidth\rlap{\span\textineqalign{##}}\tabskip\displaywidth}%
\buildeqalign
\presetdisplaymath
\tabskip\centering}
\chardef\eqalignmode=1
\def\eqalignno#1%
{\prepareeqalignno
\halign \ifcase\eqalignmode \or to \displaywidth \fi \@EA {\the\scratchtoks\crcr#1\crcr}}
\def\leqalignno#1%
{\prepareleqaligno
\halign \ifcase\eqalignmode \or to \displaywidth \fi \@EA {\the\scratchtoks\crcr#1\crcr}}
\def\aligneqalignno
{\prepareeqalignno
\halign \ifcase\eqalignmode \or to \displaywidth \fi \@EA \bgroup\the\scratchtoks\crcr}
\def\alignleqalignno
{\prepareleqalignno
\halign \ifcase\eqalignmode \or to \displaywidth \fi \@EA \bgroup\the\scratchtoks\crcr}
\def\finishalignno
{\crcr\egroup}
\definesystemvariable{eq}
\def\setupmathalign
{\dodoubleempty\dosetupmathalign}
\def\dosetupmathalign[#1][#2]%
{\ifsecondargument
\getparameters[\??eq#1][#2]%
\else
\getparameters[\??eq][#1]%
\fi}
\let\currentmathalign\empty
\def\mathalignparameter#1%
{\executeifdefined{\??eq\currentmathalign#1}{\executeifdefined{\??eq#1}\empty}}
\setupmathalign
[\c!n=2,
\c!m=1,
\c!distance=1em]
\def\numberedeqalign
{\doifelse\@@fmlocation\v!left\alignleqalignno\aligneqalignno}
\def\doxxdoubleempty#1#2%
{\ifx#2[\expandafter\dodoxxdoubleempty\else\expandafter\noxxdoubleempty\fi#1#2}
\def\dodoxxdoubleempty#1[#2]#3%
{\ifx#3[\else\expandafter\nonoxxdoubleempty\fi#1[#2]#3}
\def\noxxdoubleempty #1{#1[][]}
\def\nonoxxdoubleempty#1[#2]{#1[#2][]}
\newcount\eqaligncolumn
\def\firstineqalign{\global\eqaligncolumn\plusone}
\def\nextineqalign {\global\advance\eqaligncolumn\plusone}
\def\leftofeqalign {\getvalue{\??eq:\v!left :\number\eqaligncolumn}}
\def\rightofeqalign{\getvalue{\??eq:\v!right:\number\eqaligncolumn}}
\def\doseteqaligncolumn#1%
{\letvalue{\??eq:\v!left :\number\eqaligncolumn}\empty
\letvalue{\??eq:\v!right:\number\eqaligncolumn}\empty
\doif{#1}\v!left {\letvalue{\??eq:\v!right:\number\eqaligncolumn}\hfill}%
\doif{#1}\v!right {\letvalue{\??eq:\v!left :\number\eqaligncolumn}\hfill}%
\doif{#1}\v!middle{\letvalue{\??eq:\v!right:\number\eqaligncolumn}\hfill
\letvalue{\??eq:\v!left :\number\eqaligncolumn}\hfill}}
\def\dodoalignNC
{\gdef\doalignNC##1{&##1}}
\def\doalignNR[#1][#2]%
{\doifsomething{#1}
{\doifelse{#1}{+}
{\doformulanumber[][#2][]{}}
{\doformulanumber[#1][#2][]{}}}%
\crcr}
\def\dostartmathalign[#1][#2]%
{\pushmacro\doalignNC
\edef\currentmathalign{#1}%
\doifassignmentelse{#2}{\setupmathalign[#1][#2]}\donothing
\def\NC{\doalignNC}%
\global\let\doalignNC\dodoalignNC
\def\EQ{&=}%
\def\NR{&\global\let\doalignNC\dodoalignNC\doxxdoubleempty\doalignNR}%
% amstex compatibility mode: (ugly)
\def\notag{\def\\{&\crcr}}%
\doifelse{#2}{*}{\def\\{&\crcr}}{\def\\{&\doalignNR[+][]\crcr}}%
% end of compatibility mode
\eqaligncolumn\zerocount
\processcommacommand[\mathalignparameter\c!align]{\advance\eqaligncolumn\plusone\doseteqaligncolumn}%
% the real action
\global\eqaligncolumn\plusone
\numberedeqalign}
\def\dostopmathalign
{\finishalignno
\popmacro\doalignNC}
\def\definemathalign
{\dodoubleempty\dodefinemathalign}
\def\dodefinemathalign[#1]% [#2]%
{\setvalue{\e!start#1}{\dodoubleempty\dostartmathalign[#1]}%
\setvalue{\e!stop #1}{\dostopmathalign}%
\setupmathalign[#1]}% [#2]
\definemathalign[align] % default case
% \def\startsplit
% {\startalign[*]} % no number by default
%
% \def\stopsplit
% {&\doalignNR[+][]\crcr % for a number on last line
% \stopalign}
%D \startbuffer
%D \placeformula \startformula \eqalignno {
%D a &= b & \formulanumber \cr
%D c &= d \cr
%D &= e \cr
%D &= f & \formulanumber
%D } \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D \NC a \EQ b \NR[+]
%D \NC c \EQ d \NR
%D \NC \EQ f \NR[for:demo-a-1]
%D \NC \EQ g \NR[for:demo-a-2][a]
%D \NC \EQ h \NR[for:demo-a-3][b]
%D \NC \EQ i \NR
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D \NC a \EQ b \NR[+]
%D \NC c \EQ d \NR
%D \NC \EQ f \NR
%D \NC \EQ g \NR
%D \NC \EQ h \NR
%D \NC \EQ i \NR[+]
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D a &= b \\
%D c &= d \notag \\
%D &= e \notag \\
%D &= f \\
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D \NC a \NC \eq b \NR[+]
%D \NC c \NC \neq d \NR
%D \NC \NC \neq f \NR[for:demo-b-1]
%D \NC \NC \geq g \NR[for:demo-b-2][a]
%D \NC \NC \leq h \NR[for:demo-b-3][b]
%D \NC \NC \neq i \NR
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign[*]
%D a &= b \\
%D c &= d \\
%D &= e \\
%D &= f \\
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D x &= y \\
%D a &= b \\
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign[m=3]
%D x &= y & x &= y & z &= t \\
%D a &= b & p &= q & w &= s \\
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign[m=3,distance=0pt]
%D x &= y &= x &= y &= z &= t \\
%D a &= b &= p &= q &= w &= s \\
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign[n=5,distance=0pt]
%D x &= yy &= xx &= yy &= zz \\
%D a &= b &= p &= q &= w \\
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign[n=3,align={left,middle,right}]
%D \NC l \NC = \NC r \NR
%D \NC left \NC = \NC right \NR
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign[n=3,align={right,middle,left}]
%D \NC l \NC = \NC r \NR
%D \NC left \NC = \NC right \NR
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign[n=3,align={middle,middle,middle}]
%D \NC l \NC = \NC r \NR
%D \NC left \NC = \NC right \NR
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
% BEGIN OF PATCH (CORE-MAT.TEX)
\def\doplaceformula[#1][#2]% #2 = dummy, gobbles spaces
{\def\redoplaceformula
{\bgroup
\ifx\next\bgroup
\egroup \@EA\moreplaceformula % [ref]{}
\else
\def\nextnext{$}%
\ifx\next\nextnext
\egroup \@EAEAEA\dispplaceformula % [ref]$$
\else
\egroup \@EAEAEA\dodoplaceformula % [ref]\start
\fi
\fi[#1]{}}%
\futurelet\next\redoplaceformula}
\long\def\moreplaceformula[#1]#2#3#4% #2 dummy #4 gobbles spaces
{\def\redoplaceformula
{\bgroup
\def\nextnext{$}%
\ifx\next\nextnext
\egroup \@EA\dispplaceformula % [ref]$$
\else
\egroup \@EA\dodoplaceformula % [ref]\start
\fi
[#1]{#3}}%
\futurelet\next\redoplaceformula#4}
% END OF PATCH
\def\startformulas#1\stopformulas
{\bgroup
\forgetdisplayskips
\startdisplaymath
\setlocalhsize
\long\def\startformula##1\stopformula{\advance\scratchcounter\plusone}%
\scratchcounter\zerocount #1% preroll
\divide \hsize \scratchcounter
\hbox to \localhsize \bgroup
\hss
\def\normalstartformula{\vskip-\strutdepth$$}% i hate this
\def\normalstopformula {$$}%
% \def\jot{0pt}%
\def\startformula{$\vcenter\bgroup\normalstartformula}%
\def\stopformula {\normalstopformula\egroup$\hss}%
#1%
\egroup
\stopdisplaymath
\egroup}
%D \startbuffer
%D \placeformula
%D \startformula
%D \startalign[n=3,align={middle,middle,middle}]
%D \NC a \NC = \NC b \NR[+]
%D \NC 2a \NC = \NC 2b \NR
%D \stopalign
%D \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula
%D \startformulas
%D \setupmathalign[n=3,align={middle,middle,middle}]%
%D \startformula
%D \startalign
%D \NC a \NC = \NC b \NR[+]
%D \NC 2a \NC = \NC 2b \NR
%D \stopalign
%D \stopformula
%D \startformula
%D \startalign
%D \NC a \NC = \NC b \NR[+]
%D \NC 2a \NC = \NC 2b \NR
%D \stopalign
%D \stopformula
%D \stopformulas
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula
%D \startformulas
%D \dorecurse{5}{\startformula
%D \startalign[n=3,align={middle,middle,middle}]
%D \NC a \NC = \NC b \NR[+]
%D \NC 2a \NC = \NC 2b \NR
%D \stopalign
%D \stopformula}
%D \stopformulas
%D \stopbuffer
%D
%D \typebuffer \getbuffer
\protect \endinput
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^ permalink raw reply [flat|nested] 10+ messages in thread* Re: math
2006-01-17 13:50 math Hans Hagen
@ 2006-01-18 6:56 ` sjoerd siebinga
2006-01-18 7:48 ` math Taco Hoekwater
2006-01-18 8:17 ` math sjoerd siebinga
` (2 subsequent siblings)
3 siblings, 1 reply; 10+ messages in thread
From: sjoerd siebinga @ 2006-01-18 6:56 UTC (permalink / raw)
On 17 Jan 2006, at 23:54, Hans Hagen wrote:
>
> does {\it blabla} give italic?
Yes it does. But when I place the \uchar{1}{01} inbetween the bla
bla's the glyph remains regular.
Sjoerd
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: math
2006-01-18 6:56 ` math sjoerd siebinga
@ 2006-01-18 7:48 ` Taco Hoekwater
0 siblings, 0 replies; 10+ messages in thread
From: Taco Hoekwater @ 2006-01-18 7:48 UTC (permalink / raw)
sjoerd siebinga wrote:
>
> On 17 Jan 2006, at 23:54, Hans Hagen wrote:
>
>>
>> does {\it blabla} give italic?
>
>
> Yes it does. But when I place the \uchar{1}{01} inbetween the bla bla's
> the glyph remains regular.
Are you in math mode, by any chance?
An very small example with wrong versus right would be very helpful.
Cheers, Taco
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: math
2006-01-17 13:50 math Hans Hagen
2006-01-18 6:56 ` math sjoerd siebinga
@ 2006-01-18 8:17 ` sjoerd siebinga
2006-01-19 5:42 ` math Aditya Mahajan
2006-01-21 4:01 ` math David Arnold
3 siblings, 0 replies; 10+ messages in thread
From: sjoerd siebinga @ 2006-01-18 8:17 UTC (permalink / raw)
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Hi Taco,
I am not in math mode. I am not sure what happened, but somehow I
must have send my reply to the wrong thread. I have since send it to
the correct thread, see \uchar and italics question.
Sorry for the inconvenience,
Sjoerd
On 18 Jan 2006, at 08:47, Taco Hoekwater wrote:
> sjoerd siebinga wrote:
> >
> > On 17 Jan 2006, at 23:54, Hans Hagen wrote:
> >
> >>
> >> does {\it blabla} give italic?
> >
> >
> > Yes it does. But when I place the \uchar{1}{01} inbetween the bla
> bla's
> > the glyph remains regular.
>
> Are you in math mode, by any chance?
> An very small example with wrong versus right would be very helpful.
>
> Cheers, Taco
>
[-- Attachment #1.2: Type: text/html, Size: 2983 bytes --]
[-- Attachment #2: Type: text/plain, Size: 139 bytes --]
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^ permalink raw reply [flat|nested] 10+ messages in thread* Re: math
2006-01-17 13:50 math Hans Hagen
2006-01-18 6:56 ` math sjoerd siebinga
2006-01-18 8:17 ` math sjoerd siebinga
@ 2006-01-19 5:42 ` Aditya Mahajan
2006-01-19 7:57 ` math Hans Hagen
2006-01-21 4:01 ` math David Arnold
3 siblings, 1 reply; 10+ messages in thread
From: Aditya Mahajan @ 2006-01-19 5:42 UTC (permalink / raw)
<--- On Jan 17, Hans Hagen wrote --->
> Hi,
>
> Attached is a new version of math-ext
>
> - multiple columns
> - alignment per column
>
> See examples in source (mixed &|cr and NC|NR is no longer supported).
Thanks a lot. This takes care of 95% of my math needs, and I have
finally started using context for a project. I did a bit of testing of
the code and things work as expected. Once it is included in the main
distribution, I will write an entry on the wiki.
I am not sure of what is distance supposed to do when we specify the
columns as n=something. Consider the following example for the source.
I changed distance=0pt to distance=5cm and see no change.
\startbuffer
\placeformula \startformula \startalign[n=5,distance=5cm]
x &= yy &= xx &= yy &= zz \\
a &= b &= p &= q &= w \\
\stopalign \stopformula
\stopbuffer
\typebuffer \getbuffer
Thanks
Aditya
--
Aditya Mahajan, EECS Systems, University of Michigan
http://www.eecs.umich.edu/~adityam || Ph: 7342624008
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: math
2006-01-19 5:42 ` math Aditya Mahajan
@ 2006-01-19 7:57 ` Hans Hagen
0 siblings, 0 replies; 10+ messages in thread
From: Hans Hagen @ 2006-01-19 7:57 UTC (permalink / raw)
Aditya Mahajan wrote:
> <--- On Jan 17, Hans Hagen wrote --->
>
>> Hi,
>>
>> Attached is a new version of math-ext
>>
>> - multiple columns
>> - alignment per column
>>
>> See examples in source (mixed &|cr and NC|NR is no longer supported).
>
>
> Thanks a lot. This takes care of 95% of my math needs, and I have
> finally started using context for a project. I did a bit of testing of
> the code and things work as expected. Once it is included in the main
> distribution, I will write an entry on the wiki.
>
> I am not sure of what is distance supposed to do when we specify the
> columns as n=something. Consider the following example for the source.
> I changed distance=0pt to distance=5cm and see no change.
>
> \startbuffer
> \placeformula \startformula \startalign[n=5,distance=5cm]
> x &= yy &= xx &= yy &= zz \\
> a &= b &= p &= q &= w \\
> \stopalign \stopformula
> \stopbuffer
>
> \typebuffer \getbuffer
>
it's only used when m is set
Hans
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: math
2006-01-17 13:50 math Hans Hagen
` (2 preceding siblings ...)
2006-01-19 5:42 ` math Aditya Mahajan
@ 2006-01-21 4:01 ` David Arnold
2006-01-23 21:51 ` math Hans Hagen
3 siblings, 1 reply; 10+ messages in thread
From: David Arnold @ 2006-01-21 4:01 UTC (permalink / raw)
Hans et al,
I am going to assume that all of this is saved as math-ext.tex. None
of it goes anywhere else at the moment. Correct?
Also, I assume that:
\ifx\startalign\undefined \input math-ext.tex \fi
still needs to go into cont-new.tex.
Correct?
On Jan 17, 2006, at 5:50 AM, Hans Hagen wrote:
> Hi,
>
> Attached is a new version of math-ext
>
> - multiple columns
> - alignment per column
>
> See examples in source (mixed &|cr and NC|NR is no longer supported).
>
> That's all the math for this week.
>
> Hans
> %D \module
> %D [ file=math-ext,
> %D version=2006.01.14,
> %D title=\CONTEXT\ Math Macros,
> %D subtitle=Extra Macros,
> %D author={Hans Hagen \& Taco Hoekwater},
> %D date=\currentdate,
> %D copyright=\PRAGMA]
> %C
> %C This module is part of the \CONTEXT\ macro||package and is
> %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
> %C details.
>
> %D This will go into core-mat
>
> %M \ifx\startalign\undefined \input math-ext.tex \fi
>
> % some simple math constructs (based on user requests)
> %
> % preliminary
>
> \unprotect
>
> % adapted stuff
>
> % we need to make this plain code a bit more 'readable'
>
> \def\openup
> {\afterassignment\dopenup\scratchdimen=}
>
> \def\dopenup
> {\advance\lineskip \scratchdimen
> \advance\baselineskip \scratchdimen
> \advance\lineskiplimit\scratchdimen}
>
> \def\jot{.25\bodyfontsize} % plain tex: 3 pt (todo: better name)
>
> \newif\ifdt@p
>
> \def\displ@y % \presetdisplayspacing or so
> {\global\dt@ptrue
> \openup\jot
> \mathsurround\zeropoint
> \everycr{\noalign{%
> \ifdt@p
> \global\dt@pfalse
> \ifdim\prevdepth>-\thousandpoint
> \vskip-\lineskiplimit
> \vskip\normallineskiplimit
> \fi
> \else
> \penalty\interdisplaylinepenalty
> \fi}}}
>
> % context (hooks)
>
> \let\normaldispl@y\displ@y
>
> \def\displ@y{\resetdisplaymatheq\normaldispl@y}
>
> \let\presetdisplaymath\displ@y
>
> % plain tex value: \centering = 0pt plus 1000pt minus 1000pt
> % plain tex valye: \jot = 3pt
>
> % n>1 #### needed, strange # interaction (maybe we need a toks in
> recurse ane no macro)
>
> \def\buildeqalign
> {\scratchtoks\emptytoks
> \dorecurse{\mathalignparameter\c!m}
> {\ifnum\recurselevel>\plusone
> \appendtoks
> \tabskip\mathalignparameter\c!distance&\tabskip\zeropoint
> \to\scratchtoks
> \fi
> \expanded{\scratchtoks{\the\scratchtoks\the\!!toksa}}%
> \dorecurse{\numexpr\mathalignparameter\c!n-\plusone\relax}
> {\expanded{\scratchtoks{\the\scratchtoks\the\!!toksb}}}}%
> \expanded{\scratchtoks{\the\scratchtoks\the\!!toksc}}}
>
> \def\forgetalign
> {\tabskip\zeropoint\everycr\emptytoks}
>
> \let\firstineqalign\empty
> \let\nextineqalign \empty
> \let\leftofeqalign \empty
> \let\rightofeqalign\empty
>
> \def\mathineqalign#1{$\forgetalign\displaystyle{{}#1{}}$}
> \def\textineqalign#1{$\forgetalign#1$}
>
> \def\eqalign#1% why no halign here, probably because of displaywidth
> {\!!toksa{\strut\hfil$\displaystyle{##}$}%
> \!!toksb{&$\displaystyle{{}##{}}$\hfil}%
> \!!toksc\emptytoks
> \buildeqalign
> \null\,\vcenter
> {\openup\jot
> \mathsurround\zeropoint
> \expandafter \ialign \expandafter {\the\scratchtoks\crcr#1
> \crcr}%
> }\,}
>
> % preamble is scanned for tabskips so we need the span to prevent
> an error message
>
> \def\prepareeqalignno
> {\!!toksa{\strut\firstineqalign\hfil\leftofeqalign\span
> \mathineqalign{##}\rightofeqalign\tabskip\zeropoint}%
> \!!toksb{&\nextineqalign\leftofeqalign\span\mathineqalign{##}
> \rightofeqalign\tabskip\zeropoint}%
> \!!toksc{\hfil\tabskip\centering&\llap{\span\textineqalign{##}}
> \tabskip\zeropoint}%
> \buildeqalign
> \presetdisplaymath
> \tabskip\centering}
>
> \def\prepareleqalignno
> {\!!toksa{\strut\firstineqalign\hfil\leftofeqalign\span
> \mathineqalign{##}\rightofeqalign\tabskip\zeropoint}%
> \!!toksb{&\nextineqalign\leftofeqalign\span\mathineqalign{##}
> \rightofeqalign\tabskip\zeropoint}%
> \!!toksc{\hfil\tabskip\centering&\kern-\displaywidth\rlap{\span
> \textineqalign{##}}\tabskip\displaywidth}%
> \buildeqalign
> \presetdisplaymath
> \tabskip\centering}
>
> \chardef\eqalignmode=1
>
> \def\eqalignno#1%
> {\prepareeqalignno
> \halign \ifcase\eqalignmode \or to \displaywidth \fi \@EA {\the
> \scratchtoks\crcr#1\crcr}}
>
> \def\leqalignno#1%
> {\prepareleqaligno
> \halign \ifcase\eqalignmode \or to \displaywidth \fi \@EA {\the
> \scratchtoks\crcr#1\crcr}}
>
> \def\aligneqalignno
> {\prepareeqalignno
> \halign \ifcase\eqalignmode \or to \displaywidth \fi \@EA \bgroup
> \the\scratchtoks\crcr}
>
> \def\alignleqalignno
> {\prepareleqalignno
> \halign \ifcase\eqalignmode \or to \displaywidth \fi \@EA \bgroup
> \the\scratchtoks\crcr}
>
> \def\finishalignno
> {\crcr\egroup}
>
> \definesystemvariable{eq}
>
> \def\setupmathalign
> {\dodoubleempty\dosetupmathalign}
>
> \def\dosetupmathalign[#1][#2]%
> {\ifsecondargument
> \getparameters[\??eq#1][#2]%
> \else
> \getparameters[\??eq][#1]%
> \fi}
>
> \let\currentmathalign\empty
>
> \def\mathalignparameter#1%
> {\executeifdefined{\??eq\currentmathalign#1}{\executeifdefined{\??
> eq#1}\empty}}
>
> \setupmathalign
> [\c!n=2,
> \c!m=1,
> \c!distance=1em]
>
> \def\numberedeqalign
> {\doifelse\@@fmlocation\v!left\alignleqalignno\aligneqalignno}
>
> \def\doxxdoubleempty#1#2%
> {\ifx#2[\expandafter\dodoxxdoubleempty\else\expandafter
> \noxxdoubleempty\fi#1#2}
>
> \def\dodoxxdoubleempty#1[#2]#3%
> {\ifx#3[\else\expandafter\nonoxxdoubleempty\fi#1[#2]#3}
>
> \def\noxxdoubleempty #1{#1[][]}
> \def\nonoxxdoubleempty#1[#2]{#1[#2][]}
>
> \newcount\eqaligncolumn
>
> \def\firstineqalign{\global\eqaligncolumn\plusone}
> \def\nextineqalign {\global\advance\eqaligncolumn\plusone}
> \def\leftofeqalign {\getvalue{\??eq:\v!left :\number\eqaligncolumn}}
> \def\rightofeqalign{\getvalue{\??eq:\v!right:\number\eqaligncolumn}}
>
> \def\doseteqaligncolumn#1%
> {\letvalue{\??eq:\v!left :\number\eqaligncolumn}\empty
> \letvalue{\??eq:\v!right:\number\eqaligncolumn}\empty
> \doif{#1}\v!left {\letvalue{\??eq:\v!right:\number
> \eqaligncolumn}\hfill}%
> \doif{#1}\v!right {\letvalue{\??eq:\v!left :\number
> \eqaligncolumn}\hfill}%
> \doif{#1}\v!middle{\letvalue{\??eq:\v!right:\number
> \eqaligncolumn}\hfill
> \letvalue{\??eq:\v!left :\number
> \eqaligncolumn}\hfill}}
>
> \def\dodoalignNC
> {\gdef\doalignNC##1{&##1}}
>
> \def\doalignNR[#1][#2]%
> {\doifsomething{#1}
> {\doifelse{#1}{+}
> {\doformulanumber[][#2][]{}}
> {\doformulanumber[#1][#2][]{}}}%
> \crcr}
>
> \def\dostartmathalign[#1][#2]%
> {\pushmacro\doalignNC
> \edef\currentmathalign{#1}%
> \doifassignmentelse{#2}{\setupmathalign[#1][#2]}\donothing
> \def\NC{\doalignNC}%
> \global\let\doalignNC\dodoalignNC
> \def\EQ{&=}%
> \def\NR{&\global\let\doalignNC\dodoalignNC\doxxdoubleempty
> \doalignNR}%
> % amstex compatibility mode: (ugly)
> \def\notag{\def\\{&\crcr}}%
> \doifelse{#2}{*}{\def\\{&\crcr}}{\def\\{&\doalignNR[+][]\crcr}}%
> % end of compatibility mode
> \eqaligncolumn\zerocount
> \processcommacommand[\mathalignparameter\c!align]{\advance
> \eqaligncolumn\plusone\doseteqaligncolumn}%
> % the real action
> \global\eqaligncolumn\plusone
> \numberedeqalign}
>
> \def\dostopmathalign
> {\finishalignno
> \popmacro\doalignNC}
>
> \def\definemathalign
> {\dodoubleempty\dodefinemathalign}
>
> \def\dodefinemathalign[#1]% [#2]%
> {\setvalue{\e!start#1}{\dodoubleempty\dostartmathalign[#1]}%
> \setvalue{\e!stop #1}{\dostopmathalign}%
> \setupmathalign[#1]}% [#2]
>
> \definemathalign[align] % default case
>
> % \def\startsplit
> % {\startalign[*]} % no number by default
> %
> % \def\stopsplit
> % {&\doalignNR[+][]\crcr % for a number on last line
> % \stopalign}
>
> %D \startbuffer
> %D \placeformula \startformula \eqalignno {
> %D a &= b & \formulanumber \cr
> %D c &= d \cr
> %D &= e \cr
> %D &= f & \formulanumber
> %D } \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign
> %D \NC a \EQ b \NR[+]
> %D \NC c \EQ d \NR
> %D \NC \EQ f \NR[for:demo-a-1]
> %D \NC \EQ g \NR[for:demo-a-2][a]
> %D \NC \EQ h \NR[for:demo-a-3][b]
> %D \NC \EQ i \NR
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign
> %D \NC a \EQ b \NR[+]
> %D \NC c \EQ d \NR
> %D \NC \EQ f \NR
> %D \NC \EQ g \NR
> %D \NC \EQ h \NR
> %D \NC \EQ i \NR[+]
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign
> %D a &= b \\
> %D c &= d \notag \\
> %D &= e \notag \\
> %D &= f \\
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign
> %D \NC a \NC \eq b \NR[+]
> %D \NC c \NC \neq d \NR
> %D \NC \NC \neq f \NR[for:demo-b-1]
> %D \NC \NC \geq g \NR[for:demo-b-2][a]
> %D \NC \NC \leq h \NR[for:demo-b-3][b]
> %D \NC \NC \neq i \NR
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign[*]
> %D a &= b \\
> %D c &= d \\
> %D &= e \\
> %D &= f \\
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign
> %D x &= y \\
> %D a &= b \\
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign[m=3]
> %D x &= y & x &= y & z &= t \\
> %D a &= b & p &= q & w &= s \\
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign[m=3,distance=0pt]
> %D x &= y &= x &= y &= z &= t \\
> %D a &= b &= p &= q &= w &= s \\
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign[n=5,distance=0pt]
> %D x &= yy &= xx &= yy &= zz \\
> %D a &= b &= p &= q &= w \\
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign[n=3,align=
> {left,middle,right}]
> %D \NC l \NC = \NC r \NR
> %D \NC left \NC = \NC right \NR
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign[n=3,align=
> {right,middle,left}]
> %D \NC l \NC = \NC r \NR
> %D \NC left \NC = \NC right \NR
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula \startformula \startalign[n=3,align=
> {middle,middle,middle}]
> %D \NC l \NC = \NC r \NR
> %D \NC left \NC = \NC right \NR
> %D \stopalign \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
>
> % BEGIN OF PATCH (CORE-MAT.TEX)
>
> \def\doplaceformula[#1][#2]% #2 = dummy, gobbles spaces
> {\def\redoplaceformula
> {\bgroup
> \ifx\next\bgroup
> \egroup \@EA\moreplaceformula % [ref]{}
> \else
> \def\nextnext{$}%
> \ifx\next\nextnext
> \egroup \@EAEAEA\dispplaceformula % [ref]$$
> \else
> \egroup \@EAEAEA\dodoplaceformula % [ref]\start
> \fi
> \fi[#1]{}}%
> \futurelet\next\redoplaceformula}
>
> \long\def\moreplaceformula[#1]#2#3#4% #2 dummy #4 gobbles spaces
> {\def\redoplaceformula
> {\bgroup
> \def\nextnext{$}%
> \ifx\next\nextnext
> \egroup \@EA\dispplaceformula % [ref]$$
> \else
> \egroup \@EA\dodoplaceformula % [ref]\start
> \fi
> [#1]{#3}}%
> \futurelet\next\redoplaceformula#4}
>
> % END OF PATCH
>
> \def\startformulas#1\stopformulas
> {\bgroup
> \forgetdisplayskips
> \startdisplaymath
> \setlocalhsize
> \long\def\startformula##1\stopformula{\advance\scratchcounter
> \plusone}%
> \scratchcounter\zerocount #1% preroll
> \divide \hsize \scratchcounter
> \hbox to \localhsize \bgroup
> \hss
> \def\normalstartformula{\vskip-\strutdepth$$}% i hate this
> \def\normalstopformula {$$}%
> % \def\jot{0pt}%
> \def\startformula{$\vcenter\bgroup\normalstartformula}%
> \def\stopformula {\normalstopformula\egroup$\hss}%
> #1%
> \egroup
> \stopdisplaymath
> \egroup}
>
> %D \startbuffer
> %D \placeformula
> %D \startformula
> %D \startalign[n=3,align={middle,middle,middle}]
> %D \NC a \NC = \NC b \NR[+]
> %D \NC 2a \NC = \NC 2b \NR
> %D \stopalign
> %D \stopformula
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula
> %D \startformulas
> %D \setupmathalign[n=3,align={middle,middle,middle}]%
> %D \startformula
> %D \startalign
> %D \NC a \NC = \NC b \NR[+]
> %D \NC 2a \NC = \NC 2b \NR
> %D \stopalign
> %D \stopformula
> %D \startformula
> %D \startalign
> %D \NC a \NC = \NC b \NR[+]
> %D \NC 2a \NC = \NC 2b \NR
> %D \stopalign
> %D \stopformula
> %D \stopformulas
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
> %D
> %D \startbuffer
> %D \placeformula
> %D \startformulas
> %D \dorecurse{5}{\startformula
> %D \startalign[n=3,align={middle,middle,middle}]
> %D \NC a \NC = \NC b \NR[+]
> %D \NC 2a \NC = \NC 2b \NR
> %D \stopalign
> %D \stopformula}
> %D \stopformulas
> %D \stopbuffer
> %D
> %D \typebuffer \getbuffer
>
> \protect \endinput
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: math
2006-01-21 4:01 ` math David Arnold
@ 2006-01-23 21:51 ` Hans Hagen
2006-01-24 4:56 ` math David Arnold
0 siblings, 1 reply; 10+ messages in thread
From: Hans Hagen @ 2006-01-23 21:51 UTC (permalink / raw)
David Arnold wrote:
> Hans et al,
>
> I am going to assume that all of this is saved as math-ext.tex. None
> of it goes anywhere else at the moment. Correct?
>
> Also, I assume that:
>
> \ifx\startalign\undefined \input math-ext.tex \fi
>
> still needs to go into cont-new.tex.
>
> Correct?
till you update, because on my machine the code is now in core-mat so
it's part of the core
Hans
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: math
2006-01-23 21:51 ` math Hans Hagen
@ 2006-01-24 4:56 ` David Arnold
2006-01-24 8:21 ` math Hans Hagen
0 siblings, 1 reply; 10+ messages in thread
From: David Arnold @ 2006-01-24 4:56 UTC (permalink / raw)
Does this mean if I update I will have it in the core and I can get
rid of the line in cont-new.tex?
On Jan 23, 2006, at 1:51 PM, Hans Hagen wrote:
> David Arnold wrote:
>
>> Hans et al,
>>
>> I am going to assume that all of this is saved as math-ext.tex. None
>> of it goes anywhere else at the moment. Correct?
>>
>> Also, I assume that:
>>
>> \ifx\startalign\undefined \input math-ext.tex \fi
>>
>> still needs to go into cont-new.tex.
>>
>> Correct?
>
> till you update, because on my machine the code is now in core-mat so
> it's part of the core
>
> Hans
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2006-01-24 8:21 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-01-17 13:50 math Hans Hagen
2006-01-18 6:56 ` math sjoerd siebinga
2006-01-18 7:48 ` math Taco Hoekwater
2006-01-18 8:17 ` math sjoerd siebinga
2006-01-19 5:42 ` math Aditya Mahajan
2006-01-19 7:57 ` math Hans Hagen
2006-01-21 4:01 ` math David Arnold
2006-01-23 21:51 ` math Hans Hagen
2006-01-24 4:56 ` math David Arnold
2006-01-24 8:21 ` math Hans Hagen
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