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authorContext Git Mirror Bot <phg42.2a@gmail.com>2016-07-30 01:22:07 +0200
committerContext Git Mirror Bot <phg42.2a@gmail.com>2016-07-30 01:22:07 +0200
commit5135aef167bec739fe429e1aa987671768b237bc (patch)
treebd9f9696704e57c45f453bb7dc6becd5501cb657 /doc/context/sources/general/manuals/lua
parent9d7c4ba8449bec1da920c01e24a17c41bbf2211d (diff)
downloadcontext-5135aef167bec739fe429e1aa987671768b237bc.tar.gz
2016-07-30 00:31:00
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-% language=uk
-
-% author : Hans Hagen
-% copyright : PRAGMA ADE & ConTeXt Development Team
-% license : Creative Commons Attribution ShareAlike 4.0 International
-% reference : pragma-ade.nl | contextgarden.net | texlive (related) distributions
-% origin : the ConTeXt distribution
-%
-% comment : Because this manual is distributed with TeX distributions it comes with a rather
-% liberal license. We try to adapt these documents to upgrades in the (sub)systems
-% that they describe. Using parts of the content otherwise can therefore conflict
-% with existing functionality and we cannot be held responsible for that. Many of
-% the manuals contain characteristic graphics and personal notes or examples that
-% make no sense when used out-of-context.
-
-\usemodule[art-01,abr-02]
-
-\setupbodyfont
- [10pt]
-
-\definecolor
- [maincolor]
- [b=.4]
-
-\usesymbols
- [cc]
-
-\setuptype
- [color=maincolor]
-
-\setuptyping
- [color=maincolor]
-
-\definefont
- [TitlePageFont]
- [file:lmmonolt10-bold.otf]
-
-\setuphead
- [color=maincolor]
-
-\setupinteraction
- [hidden]
-
-\startdocument
- [metadata:author=Hans Hagen,
- metadata:title={Lua, the context libraries},
- author=Hans Hagen,
- affiliation=PRAGMA ADE,
- location=Hasselt NL,
- title=Lua,
- subtitle=the context libraries,
- support=www.contextgarden.net,
- website=www.pragma-ade.nl]
-
-\startMPpage
-
- StartPage ;
-
- numeric w ; w := bbwidth(Page) ;
- numeric h ; h := bbheight(Page) ;
-
- fill Page withcolor \MPcolor{maincolor} ;
-
- draw textext.urt("\TitlePageFont \getvariable{document}{title}") xsized (0.8w) shifted (.1w,.2h) withcolor .80white ;
- draw textext.top("\TitlePageFont \getvariable{document}{subtitle}") xsized (0.8w) shifted (.5w,.1h) withcolor .60white ;
-
- StopPage ;
-
-\stopMPpage
-
-\startsubject[title=Contents]
-
-\placelist[section][alternative=a]
-
-\stopsubject
-
-\startsection[title=Introduction]
-
-Once we started the \LUATEX\ project it didn't take long for \CONTEXT\ to use
-the \LUA\ language extensively. And so, rather soon, a bunch of libraries
-evolved that provided all kind of helpers. Because \LUATEX\ can also act as
-a \LUA\ interpreter, and because we have \type {mtxrun} as script runner
-we can also use some of those libraries outside \CONTEXT. So, for me, a rather
-natural way to run a \LUA\ script is:
-
-\starttyping
-mtxrun --script myscript.lua <optional arguments>
-\stoptyping
-
-The advantage of this approach is that you operate in the same file domain as
-your \TEX\ runs as all file locators are preloaded as well. However, in some
-cases this is not possible, for instance when you run a stock \LUA\ or some
-embedded version. For this we provide an alternative mechanism.
-
-\stopsection
-
-\startsection[title=Making libraries]
-
-In the \CONTEXT\ distribution there is a script called \type {mtxlibs.lua} that
-can create a library for you that has the basic general purpose \CONTEXT\
-libraries on board, as well as whatever more you specify.
-
-\starttyping
-lua mtxlibs.lua --selfmerge myproject-a-libs.lua
-lua mtxlibs.lua --selfmerge myproject-b-libs.lua \
- trac-lmx
-lua mtxlibs.lua --selfmerge myproject-c-libs.lua \
- util-sql util-sql-imp-client util-sql-imp-library
-\stoptyping
-
-Here we create three libs. The first one has only the core libraries. You can
-read more about what they provide in the \type {cld-mkiv.pdf} manual. The second
-library includes code for creating web pages. The third variant preloads \SQL\
-support.
-
-You can best run this file in its own directory, in the \CONTEXT\ tree, so that
-it knows where to find the libraries needed. Of course you can put the result
-everywhere you want, preferably alongside your normal scripts. As we merge code,
-this is a rather good way to prevent compatibility issues. After all, some of
-the code might get improved.
-
-You can \type {require("mtxlibs")} directly in which case it will load the core
-libraries runtime. Of course this means that \LUA\ should be able to figure out
-where it can find them.
-
-\stopsection
-
-\startsubject[title={Colofon}]
-
-\starttabulate[|B|p|]
-\NC author \NC \getvariable{document}{author}, \getvariable{document}{affiliation}, \getvariable{document}{location} \NC \NR
-\NC version \NC \currentdate \NC \NR
-\NC website \NC \getvariable{document}{website} \endash\ \getvariable{document}{support} \NC \NR
-\NC copyright \NC \symbol[cc][cc-by-sa-nc] \NC \NR
-\stoptabulate
-
-\stopsubject
-
-\stopdocument