texlive[49802] Master: globalvals (23jan19)

[commits+karl at tug.org]

Revision: 49802
          http://tug.org/svn/texlive?view=revision&revision=49802
Author:   karl
Date:     2019-01-23 22:29:45 +0100 (Wed, 23 Jan 2019)
Log Message:
-----------
globalvals (23jan19)

Modified Paths:
--------------
    trunk/Master/tlpkg/bin/tlpkg-ctan-check
    trunk/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc

Added Paths:
-----------
    trunk/Master/texmf-dist/doc/latex/globalvals/
    trunk/Master/texmf-dist/doc/latex/globalvals/COPYING
    trunk/Master/texmf-dist/doc/latex/globalvals/ChangeLog
    trunk/Master/texmf-dist/doc/latex/globalvals/README.md
    trunk/Master/texmf-dist/doc/latex/globalvals/globalvals.pdf
    trunk/Master/texmf-dist/doc/latex/globalvals/globalvals.tex
    trunk/Master/texmf-dist/tex/latex/globalvals/
    trunk/Master/texmf-dist/tex/latex/globalvals/globalvals.sty
    trunk/Master/tlpkg/tlpsrc/globalvals.tlpsrc

Added: trunk/Master/texmf-dist/doc/latex/globalvals/COPYING
===================================================================
--- trunk/Master/texmf-dist/doc/latex/globalvals/COPYING	                        (rev 0)
+++ trunk/Master/texmf-dist/doc/latex/globalvals/COPYING	2019-01-23 21:29:45 UTC (rev 49802)
@@ -0,0 +1,416 @@
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Added: trunk/Master/texmf-dist/doc/latex/globalvals/ChangeLog
===================================================================
--- trunk/Master/texmf-dist/doc/latex/globalvals/ChangeLog	                        (rev 0)
+++ trunk/Master/texmf-dist/doc/latex/globalvals/ChangeLog	2019-01-23 21:29:45 UTC (rev 49802)
@@ -0,0 +1,2 @@
+2019-01-23
+ * initial release
\ No newline at end of file

Added: trunk/Master/texmf-dist/doc/latex/globalvals/README.md
===================================================================
--- trunk/Master/texmf-dist/doc/latex/globalvals/README.md	                        (rev 0)
+++ trunk/Master/texmf-dist/doc/latex/globalvals/README.md	2019-01-23 21:29:45 UTC (rev 49802)
@@ -0,0 +1,23 @@
+Global Vals (version 1.0)
+=========================
+
+URL: https://github.com/charlesbaynham/globalvals
+(c) Charles Baynham 2018
+
+License: LaTeX Project Public License 1.3c
+
+This package allow the user to declare a variable which can then be used
+anywhere else in a document, including before it was declared. This is done
+by putting the definitions into the .aux files, therefore requiring two runs
+to get it right.
+
+It implements two commands: \defVal{<value>} and \useVal{<value>}. \defVal
+sets up a global variable and \useVal recalls it.
+
+Using \defVal twice will result in an error. Using \useVal for an undefined
+value will output the text "??"
+
+
+
+The package is released 'as is' with no warranty under the LaTeX Project Public
+License, version 1.3.


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Index: trunk/Master/texmf-dist/doc/latex/globalvals/globalvals.pdf
===================================================================
--- trunk/Master/texmf-dist/doc/latex/globalvals/globalvals.pdf	2019-01-23 21:29:12 UTC (rev 49801)
+++ trunk/Master/texmf-dist/doc/latex/globalvals/globalvals.pdf	2019-01-23 21:29:45 UTC (rev 49802)

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Added: trunk/Master/texmf-dist/doc/latex/globalvals/globalvals.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/globalvals/globalvals.tex	                        (rev 0)
+++ trunk/Master/texmf-dist/doc/latex/globalvals/globalvals.tex	2019-01-23 21:29:45 UTC (rev 49802)
@@ -0,0 +1,83 @@
+\documentclass[a4paper]{ltxdoc}
+\usepackage{globalvals}
+\usepackage{siunitx}
+
+\begin{document}
+\title{\textsf{globalvals} -- Resuable variables \\ 
+for use in large projects}
+\author{Charles Baynham}
+\date{2019/01/23 (v\,1.0)}
+\MaintainedBy{%
+This file is maintained by Charles Baynham.\\%
+Bug reports can be opened at\\%
+\url{https://github.com/charlesbaynham/globalvals}.
+}
+\maketitle
+
+\noindent
+The \textsf{globalvals} package allow the user to declare a variable which can then be used anywhere else in a document, including before it was declared. This can be useful in large projects, where value can be entered once and automatically updated throughout the document, without having to maintain a seperate file full of definitions. 
+
+This is done by putting the definitions into the .aux files, therefore requiring two runs to get it right.
+
+It implements two commands: |\defVal{|\meta{key}|}{|\meta{value}|}| and |\useVal{<key>}|. |\defVal|
+sets up a global variable and |\useVal| recalls it.
+
+Using |\defVal| twice with the same \meta{key} will result in an error. Using |\useVal| for an undefined
+value will output the text ``\textsc{??}''.
+
+\section{Defining a value}
+\label{sec:defining}
+
+\DescribeMacro{\defVal}
+%
+Defining a macro can be done using the command 
+\begin{quote}
+	|\defVal{|\meta{key}|}{|\meta{value}|}|
+\end{quote}
+
+For example, you might call 
+\begin{quote}
+	|\defVal{software_version}{v1.65}|
+\end{quote}
+\defVal{software_version}{v1.65}
+
+\meta{value}s will be expanded, so you can also embed macros within your variables, e.g.:
+\begin{quote}
+	|\defVal{fractional_stability}{\SI{10E-16}{\per\sqrt\second}}|
+\end{quote}
+\defVal{fractional_stability}{\SI{10E-16}{\per\sqrt\second}}
+
+\section{Using a variable}
+
+\DescribeMacro{\useVal} 
+To use a defined variable, use the command
+\begin{quote}
+	|\useVar{|\meta{key}|}|
+\end{quote}
+
+For instance, the values saved in section \ref{sec:defining} could be recalled using
+\begin{quote}
+	|\useVal{software_version}|
+\end{quote}
+and
+\begin{quote}
+	|\useVal{fractional_stability}|
+\end{quote}
+%
+to give ``\useVal{software_version}'' and ``\useVal{fractional_stability}''. 
+
+Importantly, values may be used \textbf{before they are defined}. This is handy if you e.g.\ would like to refer to a quantity in your abstract but it's most sensible defined in a later chapter. Like so:
+\begin{quote}
+	|The clock's fractional accuracy is estimated as| \\
+	|\useVal{an_important_quantity}.| \\
+	... \\
+	|\defVal{an_important_quantity}{\num{1E-18}}|
+\end{quote}
+to give
+\begin{quote}
+	The clock's fractional accuracy is estimated as
+	\useVal{an_important_quantity}. 
+	\defVal{an_important_quantity}{\num{1E-18}}
+\end{quote}
+
+\end{document}


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===================================================================
--- trunk/Master/texmf-dist/tex/latex/globalvals/globalvals.sty	                        (rev 0)
+++ trunk/Master/texmf-dist/tex/latex/globalvals/globalvals.sty	2019-01-23 21:29:45 UTC (rev 49802)
@@ -0,0 +1,62 @@
+% Global Vars
+
+% (c) Charles Baynham 2019
+
+% License: LaTeX Project Public License 1.3c
+
+% % This program can be redistributed and/or modified under the terms
+% % of the LaTeX Project Public License Distributed from CTAN archives
+% % in directory macros/latex/base/lppl.txt.
+
+% This package allow the user to declare a variable which can then be used
+% anywhere else in a document, including before it was declared. This is done
+% by putting the definitions into the .aux files, therefore requiring two runs
+% to get it right.
+
+% It implements two commands: \defVal{<value>} and \useVal{<value>}. \defVal
+% sets up a global variable and \useVal recalls it.
+
+% Using \defVal twice will result in an error. Using \useVal for an undefined
+% value will output the text "??"
+%
+\makeatletter
+\NeedsTeXFormat{LaTeX2e}
+\def\@globalvalsPkgName{globalvals}
+\ProvidesPackage{\@globalvalsPkgName}
+  [2019/01/23 v1.0 Define and use global variables throughout a document, including before their definition]
+
+
+
+% useVal@#1 will hold the value of the variable: it's defined by an .aux file
+% somewhere
+\newcommand{\useVal}[1]{%
+  \ifcsname useVal@#1\endcsname
+    \csname useVal@#1\endcsname
+  \else
+    ??%
+    \PackageWarning{\@globalvalsPkgName}{Value "#1" has not yet been defined. This may be fine, you may need to recompile. If you keep getting this message it's because you haven't defined it yet. }
+  \fi
+}
+
+% useVal@#1 is defined in the .aux file to be used on the next run.
+% useVal@#1 at defined is defined immediately to mark that useVal@#1 has already
+% been used and cannot be used again
+\newcommand{\defVal}[2]{%
+\ifcsname useVal@#1 at defined\endcsname
+  \PackageError{\@globalvalsPkgName}{Value "#1" already defined}%
+    {You have two defVal commands which have the same parameter name. This error is occurring on the 2nd (or 3rd, or 4th...).}%
+\else%
+  \write\@auxout{%
+    \unexpanded{\global\@namedef{useVal@#1}{#2}}%
+  }%
+  \global\@namedef{useVal@#1 at defined}{}%
+  \global\@namedef{useVal@#1}{#2}%
+  \PackageInfo{\@globalvalsPkgName}{Defining new variable "#1" with value "#2"}%
+\fi%
+}
+
+\makeatother
+
+\endinput
+%%
+%% End of file `globalvals.sty'.
\ No newline at end of file


Property changes on: trunk/Master/texmf-dist/tex/latex/globalvals/globalvals.sty
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Modified: trunk/Master/tlpkg/bin/tlpkg-ctan-check
===================================================================
--- trunk/Master/tlpkg/bin/tlpkg-ctan-check	2019-01-23 21:29:12 UTC (rev 49801)
+++ trunk/Master/tlpkg/bin/tlpkg-ctan-check	2019-01-23 21:29:45 UTC (rev 49802)
@@ -312,7 +312,7 @@
     gfsporson gfssolomos
     ghab ghsystem gillcm gillius gincltex ginpenc
     gitfile-info gitinfo gitinfo2 gitlog
-    gloss glossaries
+    globalvals gloss glossaries
     glossaries-danish glossaries-dutch glossaries-english glossaries-extra
     glossaries-finnish glossaries-french
     glossaries-german glossaries-irish glossaries-italian glossaries-magyar

Modified: trunk/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc
===================================================================
--- trunk/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc	2019-01-23 21:29:12 UTC (rev 49801)
+++ trunk/Master/tlpkg/tlpsrc/collection-latexextra.tlpsrc	2019-01-23 21:29:45 UTC (rev 49802)
@@ -493,6 +493,7 @@
 depend gitinfo
 depend gitinfo2
 depend gitlog
+depend globalvals
 depend gloss
 depend glossaries
 depend glossaries-danish

Added: trunk/Master/tlpkg/tlpsrc/globalvals.tlpsrc
===================================================================