Re: [NTG-context] \emptylines non-functional

2015-09-09 Thread Wolfgang Schuster 

Aditya Mahajan <mailto:adit...@umich.edu>
9. September 2015 16:19
On Wed, 9 Sep 2015, Hans Hagen wrote:


How does this differ from \blank[2*line] etc? vertical glue?
1. When the empty lines are inserted at a line break they are kept with 
\emptylines but when you use \blank the glue disappears at the begin of 
the page.


2. When you use \blank to insert empty lines before (or after) another 
environment which uses \blank to insert vertical space only the larger 
value is used.


Wolfgang
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Re: [NTG-context] \emptylines non-functional

2015-09-09 Thread Aditya Mahajan 

On Wed, 9 Sep 2015, Hans Hagen wrote:


On 9/9/2015 2:17 AM, Rik Kabel wrote:

On 2015-09-08 17:52, Hans Hagen wrote:

\def\spac_lines_empty[#1]%
  {\endgraf
   \begingroup
   \forgetall
   \scratchcounter\iffirstargument#1\else3\fi\relax
   \ifhmode
  \crlf
  \advance\scratchcounter\minusone
   \fi
   \dorecurse\scratchcounter{\strut\crlf}%
   \endgroup}

Hmmm. I think that the mode test and added \crlf can go, but the
decrement has to be there, at least if my test with and without \crlf in
the example tests that properly, so:

\def\spac_lines_empty[#1]%
   {\endgraf
\begingroup
\forgetall
\scratchcounter\iffirstargument#1\else3\fi\relax
\advance\scratchcounter\minusone
\dorecurse\scratchcounter{\strut\crlf}%
\endgroup}

Of course, I did not run through more tests and do not know if anything
else depends on this that should be tested.


\def\spac_lines_empty[#1]%
  {\endgraf
   \begingroup
  %\forgetall % debatable
   \ifhmode
  \crlf % finish the current line
   \fi
   \dorecurse{\iffirstargument#1\else3\fi}{\strut\crlf}%
   \endgroup}


\starttext

x1 \emptylines[0] x1
x2 \emptylines[1] x2
x3 \emptylines[2] x3
x4 \emptylines[3] x4

x1 \par \emptylines[0] x1
x2 \par \emptylines[1] x2
x3 \par \emptylines[2] x3
x4 \par \emptylines[3] x4

\stoptext


How does this differ from \blank[2*line] etc? vertical glue?

Aditya
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Re: [NTG-context] \emptylines non-functional

2015-09-09 Thread Hans Hagen 

On 9/9/2015 2:17 AM, Rik Kabel wrote:

On 2015-09-08 17:52, Hans Hagen wrote:

\def\spac_lines_empty[#1]%
  {\endgraf
   \begingroup
   \forgetall
   \scratchcounter\iffirstargument#1\else3\fi\relax
   \ifhmode
  \crlf
  \advance\scratchcounter\minusone
   \fi
   \dorecurse\scratchcounter{\strut\crlf}%
   \endgroup}

Hmmm. I think that the mode test and added \crlf can go, but the
decrement has to be there, at least if my test with and without \crlf in
the example tests that properly, so:

\def\spac_lines_empty[#1]%
   {\endgraf
\begingroup
\forgetall
\scratchcounter\iffirstargument#1\else3\fi\relax
\advance\scratchcounter\minusone
\dorecurse\scratchcounter{\strut\crlf}%
\endgroup}

Of course, I did not run through more tests and do not know if anything
else depends on this that should be tested.


\def\spac_lines_empty[#1]%
  {\endgraf
   \begingroup
  %\forgetall % debatable
   \ifhmode
  \crlf % finish the current line
   \fi
   \dorecurse{\iffirstargument#1\else3\fi}{\strut\crlf}%
   \endgroup}


\starttext

x1 \emptylines[0] x1
x2 \emptylines[1] x2
x3 \emptylines[2] x3
x4 \emptylines[3] x4

x1 \par \emptylines[0] x1
x2 \par \emptylines[1] x2
x3 \par \emptylines[2] x3
x4 \par \emptylines[3] x4

\stoptext

-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
 | www.pragma-pod.nl
-
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Re: [NTG-context] \emptylines non-functional

2015-09-08 Thread Rik Kabel 

On 2015-09-08 17:52, Hans Hagen wrote:

\def\spac_lines_empty[#1]%
  {\endgraf
   \begingroup
   \forgetall
   \scratchcounter\iffirstargument#1\else3\fi\relax
   \ifhmode
  \crlf
  \advance\scratchcounter\minusone
   \fi
   \dorecurse\scratchcounter{\strut\crlf}%
   \endgroup}
Hmmm. I think that the mode test and added \crlf can go, but the 
decrement has to be there, at least if my test with and without \crlf  
in the example tests that properly, so:


\def\spac_lines_empty[#1]%
  {\endgraf
   \begingroup
   \forgetall
   \scratchcounter\iffirstargument#1\else3\fi\relax
   \advance\scratchcounter\minusone
   \dorecurse\scratchcounter{\strut\crlf}%
   \endgroup}

Of course, I did not run through more tests and do not know if anything 
else depends on this that should be tested.

--
Rik
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Re: [NTG-context] \emptylines non-functional

2015-09-08 Thread Hans Hagen 

On 9/8/2015 10:49 PM, Rik wrote:

\setuppapersize[A5]
\startcolumns[n=3]
 With non-empty lines\crlf
 asdf\crlf
 asdf\crlf
 asdf\crlf
 asdf
\column
 With\tex{emptylines[2]}
 \emptylines[2]
 asdf\crlf
 asdf
\column
 With\tex{blank[2*big]}
 \blank[2*big]
 asdf\crlf
 asdf
\stopcolumns


you can experiment with this in cont-new.mkiv:

\unprotect

\def\spac_lines_empty[#1]%
  {\endgraf
   \begingroup
   \forgetall
   \scratchcounter\iffirstargument#1\else3\fi\relax
   \ifhmode
  \crlf
  \advance\scratchcounter\minusone
   \fi
   \dorecurse\scratchcounter{\strut\crlf}%
   \endgroup}

\protect



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  Hans Hagen | PRAGMA ADE
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 | www.pragma-pod.nl
-
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[NTG-context] \emptylines non-functional

2015-09-08 Thread Rik 
\emptylines is not producing empty lines. Here is the example from the 
wiki <http://wiki.contextgarden.net/Command/emptylines>:


\setuppapersize[A5]
\startcolumns[n=3]
With non-empty lines\crlf
asdf\crlf
asdf\crlf
asdf\crlf
asdf
\column
With\tex{emptylines[2]}
\emptylines[2]
asdf\crlf
asdf
\column
With\tex{blank[2*big]}
\blank[2*big]
asdf\crlf
asdf
\stopcolumns

and here is the output using the current MKIV beta:

--
Rik
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