Experimental LaTeX3 High-Level Concepts ======================================= 2011/08/14 WHERE TO GET IT --------------- The files in this distribution represent a snapshot of selected files from the Subversion (SVN) repository of the LaTeX3 Project. To obtain current versions of the files, visit <http://www.latex-project.org/code.html> which contains further instructions. OVERVIEW -------- The l3experimental packages are a collection of experimental implementations for aspects of the LaTeX3 kernel, dealing with higher-level ideas such as the Designer Interface. Some of them work as stand alone packages, providing new functionality, and can be used on top of LaTeX2e with no changes to the existing kernel. Others go further, and redefine LaTeX2e internals to provide better methods for managing certain constructs. The packages in the collection are under active development and the interfaces may change. Currently included in the CTAN release of l3experimental are the following bundles: * l3dt * l3sort * l3str * xcoffins * xgalley l3dt ---- A 'data table' is a method of storing data in a spreadsheet-like format, with rows and fields. This module provides the basic management structures needed to work with data tables, including the ability to map to fields on a row-by-row basis. l3sort ------ Ordered variables content (in tl, clist or seq variables) may be sorted in a flexible manner using the l3sort module. The definition of how to sort two items is provided by the programmer at the point at which the sort is carried out. Internally, the sorting algorithm is designed to take advantage of TeX token registers to allow a high performance and scalable sort. l3str ----- A 'string' in TeX terms is a token list in which all of the tokens have category code 12 ('other'), with the exception of spaces which have the category code 10 ('space'). The l3str bundle consists of two parts. The first is l3str itself. This is a collection of functions to act on strings, including for manipulations such as UTF8 mappings in pdfTeX. The second part of the bundle is l3regex, a regular expression search-and-replace implementation written in TeX primitives. The regex module works on a string basis, ignoring category codes. xcoffins -------- A _coffin_ is a 'box with handles': a data structure which comprises both a TeX box and associated information to allow controlled typesetting. The xcoffins package provides a high-level interface for manipulating coffins. This is supported by the lower-level l3coffins package, which provides the data structure. xgalley ------- In LaTeX3 terminology a galley is a rectangular area which receives text and other material filling it from top. The vertically extend of a galley is normally not restricted: instead certain chunks are taken off the top of an already partially filled galley to form columns or similar areas on a page. This process is typically asynchronous but there are ways to control or change its behaviour. The xgalley module provides a mechanism for filling galleys and controlling the spacing, hyphenation and justification within them. DISCUSSION ---------- Discussion concerning the approach, suggestions for improvements, changes, additions, etc. should be addressed to the list LaTeX-L. You can subscribe to this list by sending mail to email@example.com with the body containing subscribe LATEX-L <Your-First-Name> <Your-Second-Name> BUGS ---- The issue tracker for LaTeX3 bugs is currently located at https://github.com/latex3/svn-mirror/issues Please report specific issues with LaTeX3 code there. More general discussion should be directed to the LaTeX-L lists. --- Copyright 1998 -- 2011 The LaTeX3 Project. All rights reserved ---
|l3dt.dtx||44017||2013-12-31 05:42:54||Experimental LaTeX 3 data tables|
|l3regex.dtx||228238||2013-12-31 05:42:54||Regular expression facilities for LaTeX|
|xgalley.dtx||59300||2013-12-31 05:42:54||Control text feeding onto the page|
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l3experimental – Experimental LaTeX3 concepts
The l3experimental packages are a collection of experimental implementations for aspects of the LaTeX3 kernel, dealing with higher-level ideas such as the Designer Interface. Some of them work as stand alone packages, providing new functionality, and can be used on top of LaTeX2ε with no changes to the existing kernel.The present release includes:
- xgalley, which controls boxes receiving text for typesetting.
- l3dt: kernel support for data tables;
- l3regex: kernel support for regular expression search and replace operations;
- l3sort: kernel support for sorting sequences, token lists or comma-lists, according to user-specified comparison criteria;
- l3str: kernel support for string manipulation;
- l3tl-build: kernel support for token list building;
- l3tl_analysis: kernel support for token list analysis; and xcoffins, which allows the alignment of boxes using a series of ‘handle’ positions, supplementing the simple TeX reference point.
|License||The LaTeX Project Public License 1.3|
|Copyright||2012-2013 The LaTeX3 Project|
|Maintainer||The LaTeX Team |
|Contained in||TeXLive as l3experimental|
|MiKTeX as l3experimental|
work done for the project to upgrade LaTeX|
layout of objects on the page
support for development of (La)TeX macros
developing version of new software