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(This article was first published on <strong><a href="http://dirk.eddelbuettel.com/blog/2017/01/05#rcpptoml_0.1.0"> Thinking inside the box </a></strong>, and kindly contributed to <a rel="nofollow" href="https://www.r-bloggers.com/">R-bloggers)</a> </div>
<p>Big news: RcppTOML now works on Windows too!</p>
<p>This package had an uneventful 2016 without a single update. Release 0.0.5 had come out <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/blog/2015/12/19#rcpptoml_0.0.5">in late 2015</a> and we had no bugs or issues to fix. We use the package daily in production: a key part of our parameterisation is in <a target="_blank" rel="nofollow" href="https://github.com/toml-lang/toml">TOML</a> files</p>
<p>In the summer, I took one brief stab at building on Windows now that R sports itself a proper C++11 compiler on Windows too. I got stuck over the not-uncommon problem of incomplete POSIX and/or C++11 support with MinGW and g++-4.9. And sadly … I appears I wasn’t quite awake enough to realize that the missing functionality was right there exposed by <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/code/rcpp.html">Rcpp</a>! Having updated that date / datetime functionality <a target="_blank" rel="nofollow" href="https://github.com/RcppCore/Rcpp/commit/e0d480715008a6b4d3ad10eea2fb7cc9d1827871">very recently</a>, I was in a better position to realize this when <a target="_blank" rel="nofollow" href="https://github.com/dpastoor">Devin Pastoor</a> asked <a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcpptoml/issues/5">two days ago</a>. I was able to make a quick suggestion which he tested, which I then refined … here we are: <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/code/rcpp.toml.html">RcppTOML</a> on Windows too! (For the impatient: CRAN has reported that it has built the Windows binaries, they should hit mirrors such as <a target="_blank" rel="nofollow" href="https://cloud.r-project.org/web/packages/RcppTOML/index.html">this CRAN package for RcppTOML</a> shortly.)</p>
<p>So what is this <a target="_blank" rel="nofollow" href="https://github.com/toml-lang/toml">TOML</a> thing, you ask? A file format, very suitable for configurations, meant to be <em>edited by humans</em> but read by computers. It emphasizes <em>strong readability for humans</em> while at the same time supporting <em>strong typing</em> as well as <em>immediate and clear error reports</em>. On small typos you get parse errors, rather than silently corrupted garbage. Much preferable to any and all of XML, JSON or YAML — though sadly these may be too ubiquitous now. But <a target="_blank" rel="nofollow" href="https://github.com/toml-lang/toml">TOML</a> is making good inroads with newer and more flexible projects. The <a target="_blank" rel="nofollow" href="https://gohugo.io/">Hugo</a> static blog compiler is one example; the <a target="_blank" rel="nofollow" href="https://crates.io/">Cargo</a> system of Crates (aka &quot;packages&quot;) for the <a target="_blank" rel="nofollow" href="https://www.rust-lang.org/en-US/">Rust language</a> is another example.</p>
<p>The new release updates the included <a target="_blank" rel="nofollow" href="https://github.com/skystrife/cpptoml">cpptoml</a> template header by <a target="_blank" rel="nofollow" href="https://chara.cs.illinois.edu/sites/cgeigle/">Chase Geigle</a>, brings the aforementioned Windows support and updates the Travis configuration. We also added a NEWS file for the first time so here are all changes so far:</p>
<blockquote>
<h4>Changes in version 0.1.0 (2017-01-05)</h4>
<ul>
<li>
<p>Added Windows support by relying on <code>Rcpp::mktime00()</code> (<a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcpptoml/pull/6">#6</a> and <a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcpptoml/pull/8">#8</a> closing <a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcpptoml/issues/5">#5</a> and <a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcpptoml/issues/3">#3</a>)</p>
</li>
<li>
<p>Synchronized with <code>cpptoml</code> upstream (<a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcpptoml/pull/9">#9</a>)</p>
</li>
<li>
<p>Updated Travis CI support via newer <code>run.sh</code></p>
</li>
</ul>
<h4>Changes in version 0.0.5 (2015-12-19)</h4>
<ul>
<li>
<p>Synchronized with <code>cpptoml</code> upstream (<a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcpptoml/pull/4">#4</a>)</p>
</li>
<li>
<p>Improved and extended examples</p>
</li>
</ul>
<h4>Changes in version 0.0.4 (2015-07-16)</h4>
<ul>
<li>
<p>Minor update of upstream <code>cpptoml.h</code></p>
</li>
<li>
<p>More explicit call of <code>utils::str()</code></p>
</li>
<li>
<p>Properly cope with empty lists (<a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcpptoml/pull/2">#2</a>)</p>
</li>
</ul>
<h4>Changes in version 0.0.3 (2015-04-27)</h4>
<ul>
<li>First CRAN release after four weeks of initial development</li>
</ul>
</blockquote>
<p>Courtesy of <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/cranberries/">CRANberries</a>, there is a diffstat report for <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/cranberries/2017/01/05#RcppTOML_0.1.0">this release</a>.</p>
<p>More information and examples are on the <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/code/rcpp.toml.html">RcppTOML page</a>. Issues and bugreports should go to the <a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcpptoml/issues">GitHub issue tracker</a>.</p>
<p>
This post by <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/">Dirk Eddelbuettel</a> originated on his <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/blog/">Thinking inside the box</a> blog. Please report excessive re-aggregation in third-party for-profit settings.</p>
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