From 39877769ecfa442af71b4ddd1c266f401957cdd8 Mon Sep 17 00:00:00 2001 From: Norbert Preining Date: Sat, 1 Jan 2022 03:00:53 +0000 Subject: CTAN sync 202201010300 --- systems/doc/luatex/luatex-modifications.tex | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'systems/doc/luatex/luatex-modifications.tex') diff --git a/systems/doc/luatex/luatex-modifications.tex b/systems/doc/luatex/luatex-modifications.tex index bf4233165b..caf643913f 100644 --- a/systems/doc/luatex/luatex-modifications.tex +++ b/systems/doc/luatex/luatex-modifications.tex @@ -1,4 +1,4 @@ -% language=uk +% language=us engine=luatex runpath=texruns:manuals/luatex \environment luatex-style @@ -507,6 +507,14 @@ opened it up. \stopsubsection +\startsubsection[title=Changes from anywhere] + +The \type {\partokenname} and \type {\partokencontext} primitives are taken from +the \PDFTEX\ change file posted on the implementers list. They are explained in +the \PDFTEX\ manual and are classified as \ETEX\ extensions. + +\stopsubsection + \startsubsection[title=Changes from standard \WEBC] \topicindex {\WEBC} @@ -1129,6 +1137,14 @@ kerns, should be handled in the input or macro package because there is no way w can predict the expected behaviour. In fact, the \lpr {linedir} is just a convenience extra which could also have been implemented using node list parsing. +Directions are complicated by the fact that they often need to work over groups +so a separate grouping related stack is used. A side effect is that there can be +paragraphs with only a local par node followed by direction synchronization +nodes. Paragraphs like that are seen as empty paragraphs and therefore ignored. +Because \type {\noindent} doesn't inject anything but a \type {\indent} injects +an box, paragraphs with only an indent and directions are handles as paragraphs +with content. + \stopsubsection \startsubsection[title={Controlling glue with \lpr {breakafterdirmode}}] -- cgit v1.2.3