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authorHans Hagen <pragma@wxs.nl>2017-06-19 15:50:29 +0200
committerContext Git Mirror Bot <phg42.2a@gmail.com>2017-06-19 15:50:29 +0200
commitd11a1200ed28c6e0058990a621d7404f821ac7fd (patch)
treea433002a97225266abf1f925beb0ed699dbee41c /doc
parent008292817580eba8a0f0cf83d8e2d08df8fc8c3f (diff)
downloadcontext-d11a1200ed28c6e0058990a621d7404f821ac7fd.tar.gz
2017-06-19 15:35:00
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-rw-r--r--doc/context/documents/general/qrcs/setup-cs.pdfbin845146 -> 845130 bytes
-rw-r--r--doc/context/documents/general/qrcs/setup-de.pdfbin843051 -> 843044 bytes
-rw-r--r--doc/context/documents/general/qrcs/setup-en.pdfbin847898 -> 847882 bytes
-rw-r--r--doc/context/documents/general/qrcs/setup-fr.pdfbin841580 -> 841578 bytes
-rw-r--r--doc/context/documents/general/qrcs/setup-it.pdfbin843183 -> 843166 bytes
-rw-r--r--doc/context/documents/general/qrcs/setup-nl.pdfbin840148 -> 840138 bytes
-rw-r--r--doc/context/documents/general/qrcs/setup-ro.pdfbin840238 -> 840228 bytes
-rw-r--r--doc/context/sources/general/manuals/luatex/luatex-math.tex22
-rw-r--r--doc/context/sources/general/manuals/math/math-spacing.tex37
9 files changed, 54 insertions, 5 deletions
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index ae60bf4e5..bcc1e1d31 100644
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diff --git a/doc/context/sources/general/manuals/luatex/luatex-math.tex b/doc/context/sources/general/manuals/luatex/luatex-math.tex
index f8383e974..33b57ff3e 100644
--- a/doc/context/sources/general/manuals/luatex/luatex-math.tex
+++ b/doc/context/sources/general/manuals/luatex/luatex-math.tex
@@ -1227,6 +1227,28 @@ formula.
% if needed we can put the value in stylenodes but maybe more should go there
+\subsection{Penalties: \type {\mathpenaltiesmode}}
+
+Only in inline math penalties will be added in a math list. You can force
+penalties (also in display math) by setting:
+
+\starttyping
+\mathpenaltiesmode = 1
+\stoptyping
+
+This primnitive is not really needed in \LUATEX\ because you can use the callback
+\type {mlist_to_hlist} to force penalties by just calling the regular routine
+with forced penalties. However, as part of opening up and control this primitive
+makes sense. As a bonus we also provide two extra penalties:
+
+\starttyping
+\prebinoppenalty = -100 % example value
+\prerelpenalty = 900 % example value
+\stoptyping
+
+They default to inifinite which signals that they don't need to be inserted. When
+set they are injected before a binop or rel noad. This is an experimental feature.
+
\subsection {Tracing}
Because there are quite some math related parameters and values, it is possible
diff --git a/doc/context/sources/general/manuals/math/math-spacing.tex b/doc/context/sources/general/manuals/math/math-spacing.tex
index 02f2c71a8..3a665a7d8 100644
--- a/doc/context/sources/general/manuals/math/math-spacing.tex
+++ b/doc/context/sources/general/manuals/math/math-spacing.tex
@@ -397,24 +397,51 @@ Of course better is to fix the font.
Inline formulas can span lines but display math normally sits on one line unless
one uses alignment mechanisms. Take this:
-\startbuffer
+\startbuffer[demo]
\startformula
x\dorecurse{30}{ + #1x^{#1x}} = 10
\stopformula
\stopbuffer
-\typebuffer
+\typebuffer[demo]
-\par \start \setupformula[split=no] \getbuffer \stop \par
+\par \start \setupformula[split=no] \getbuffer[demo] \stop \par
You can set \type {split} to \type {yes} using \type {\setupformula} and get the
following:
-\par \start \setupformula[split=yes] \getbuffer \stop \par
+\par \start \setupformula[split=yes] \getbuffer[demo] \stop \par
Maybe nicer is to also set \type {align} to \type {flushleft}:
-\par \start \setupformula[split=yes,align=flushleft] \getbuffer \stop \par
+\par \start \setupformula[split=yes,align=flushleft] \getbuffer[demo] \stop \par
+
+If you want the binary operators to start the lines you can set this:
+
+\startbuffer[setup]
+\setupmathematics[setups=math:spacing:split]
+\setupformulas[split=yes,align=flushleft]
+\stopbuffer
+
+\typebuffer[setup]
+
+\par \start \getbuffer[setup,demo] \stop \par
+
+You can prevent a split with a large penalty. Here is a test that yuou can run
+to play with this feature:
+
+\starttyping
+\dostepwiserecurse {30} {100} {1} {
+ \hsize \dimexpr 40pt + #1pt \relax
+ \startformula
+ y = a \dorecurse {50} {
+ \penalty 10000 {\bf + ##1b}
+ + ##1c^2
+ }
+ \stopformula
+ \page
+}
+\stoptyping
There is an experimental alignment mechanism available. Watch the following
examples: