mirror of
https://github.com/ganelson/inform.git
synced 2024-07-16 22:14:23 +03:00
331 lines
63 KiB
HTML
331 lines
63 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<head>
|
|
<title>Extension Manager</title>
|
|
<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<meta name="viewport" content="width=device-width initial-scale=1">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<meta http-equiv="Content-Language" content="en-gb">
|
|
|
|
<link href="../docs-assets/Contents.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Progress.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Navigation.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Fonts.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Base.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<script>
|
|
function togglePopup(material_id) {
|
|
var popup = document.getElementById(material_id);
|
|
popup.classList.toggle("show");
|
|
}
|
|
</script>
|
|
|
|
<link href="../docs-assets/Popups.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
|
|
</head>
|
|
<body class="commentary-font">
|
|
<nav role="navigation">
|
|
<h1><a href="../index.html">
|
|
<img src="../docs-assets/Inform.png" height=72">
|
|
</a></h1>
|
|
<ul><li><a href="../index.html">home</a></li>
|
|
</ul><h2>Compiler</h2><ul>
|
|
<li><a href="../structure.html">structure</a></li>
|
|
<li><a href="../inbuildn.html">inbuild</a></li>
|
|
<li><a href="../inform7n.html">inform7</a></li>
|
|
<li><a href="../intern.html">inter</a></li>
|
|
<li><a href="../services.html">services</a></li>
|
|
<li><a href="../secrets.html">secrets</a></li>
|
|
</ul><h2>Other Tools</h2><ul>
|
|
<li><a href="../inblorbn.html">inblorb</a></li>
|
|
<li><a href="../indocn.html">indoc</a></li>
|
|
<li><a href="../inform6.html">inform6</a></li>
|
|
<li><a href="../inpolicyn.html">inpolicy</a></li>
|
|
<li><a href="../inrtpsn.html">inrtps</a></li>
|
|
</ul><h2>Resources</h2><ul>
|
|
<li><a href="../extensions.html">extensions</a></li>
|
|
<li><a href="../kits.html">kits</a></li>
|
|
</ul><h2>Repository</h2><ul>
|
|
<li><a href="https://github.com/ganelson/inform"><img src="../docs-assets/github.png" height=18> github</a></li>
|
|
</ul><h2>Related Projects</h2><ul>
|
|
<li><a href="../../../inweb/index.html">inweb</a></li>
|
|
<li><a href="../../../intest/index.html">intest</a></li>
|
|
|
|
</ul>
|
|
</nav>
|
|
<main role="main">
|
|
<!--Weave of 'Extension Manager' generated by Inweb-->
|
|
<div class="breadcrumbs">
|
|
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../inbuildn.html">Inbuild Modules</a></li><li><a href="index.html">supervisor</a></li><li><a href="index.html#4">Chapter 4: Genre Management</a></li><li><b>Extension Manager</b></li></ul></div>
|
|
<p class="purpose">Claiming and creating copies of the extension genre: used for Inform 7 extensions.</p>
|
|
|
|
<ul class="toc"><li><a href="4-em.html#SP1">§1. Genre definition</a></li><li><a href="4-em.html#SP5">§5. Claiming</a></li><li><a href="4-em.html#SP6">§6. Searching</a></li><li><a href="4-em.html#SP7">§7. Copying</a></li><li><a href="4-em.html#SP8">§8. Build graph</a></li><li><a href="4-em.html#SP9">§9. Source text</a></li></ul><hr class="tocbar">
|
|
|
|
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. Genre definition. </b>The <span class="extract"><span class="extract-syntax">extension_genre</span></span> can be summarised as follows. Copies consist of single
|
|
files. These are recognised by having the filename extension <span class="extract"><span class="extract-syntax">.i7x</span></span>. They are
|
|
stored in nests, in <span class="extract"><span class="extract-syntax">N/Extensions/Author/Title-vVersion.i7x</span></span>. Their build
|
|
graphs are a single vertex with no build edges, but with use edges to any
|
|
further extensions which they Include.
|
|
</p>
|
|
|
|
<p class="commentary">It may seem surprising that we do not provide a <span class="extract"><span class="extract-syntax">GENRE_CONSTRUCT_GRAPH_MTID</span></span>
|
|
method. This is for efficiency reasons: we don't want to read and parse the
|
|
source text of every extension we ever see, and that's what would be needed
|
|
to make the graphs of every such extension. Instead we build out the graph
|
|
later on, as needed, just for extensions of interest: see below.
|
|
</p>
|
|
|
|
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::start</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::start</span></span>:<br/>Inbuild Control - <a href="1-ic.html#SP5">§5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax"> = </span><a href="2-gnr.html#SP1" class="function-link"><span class="function-syntax">Genres::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"extension"</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="2-gnr.html#SP4" class="function-link"><span class="function-syntax">Genres::place_in_class</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_WRITE_WORK_MTID</span><span class="plain-syntax">, </span><a href="4-em.html#SP2" class="function-link"><span class="function-syntax">ExtensionManager::write_work</span></a><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_CLAIM_AS_COPY_MTID</span><span class="plain-syntax">, </span><a href="4-em.html#SP5" class="function-link"><span class="function-syntax">ExtensionManager::claim_as_copy</span></a><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_SEARCH_NEST_FOR_MTID</span><span class="plain-syntax">, </span><a href="4-em.html#SP6" class="function-link"><span class="function-syntax">ExtensionManager::search_nest_for</span></a><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_COPY_TO_NEST_MTID</span><span class="plain-syntax">, </span><a href="4-em.html#SP7" class="function-link"><span class="function-syntax">ExtensionManager::copy_to_nest</span></a><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_READ_SOURCE_TEXT_FOR_MTID</span><span class="plain-syntax">, </span><a href="4-em.html#SP9" class="function-link"><span class="function-syntax">ExtensionManager::read_source_text_for</span></a><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">, </span><span class="constant-syntax">GENRE_BUILDING_SOON_MTID</span><span class="plain-syntax">, </span><a href="4-em.html#SP8" class="function-link"><span class="function-syntax">ExtensionManager::building_soon</span></a><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::write_work</span><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_work</span><span class="plain-syntax"> *</span><span class="identifier-syntax">work</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%X"</span><span class="plain-syntax">, </span><span class="identifier-syntax">work</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>Extensions live in their namesake subdirectory of a nest:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="function-syntax">ExtensionManager::path_within_nest</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::path_within_nest</span></span>:<br/><a href="4-em.html#SP6">§6</a>, <a href="4-em.html#SP7">§7</a><br/>Extension Bundle Manager - <a href="4-ebm.html#SP6">§6</a><br/>Census - <a href="7-cns.html#SP3">§3</a><br/>Index Pages - <a href="7-ip.html#SP1_2_2_4_4_3">§1.2.2.4.4.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">N</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"no nest"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">-></span><span class="element-syntax">location</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Extensions"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b>Extension copies are annotated with a structure called an <span class="extract"><span class="extract-syntax">inform_extension</span></span>,
|
|
which stores data about extensions used by the Inform compiler.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">inform_extension</span><span class="plain-syntax"> *</span><span class="function-syntax">ExtensionManager::from_copy</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::from_copy</span></span>:<br/><a href="4-em.html#SP8">§8</a>, <a href="4-em.html#SP9">§9</a><br/>Extension Services - <a href="5-es.html#SP4">§4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">C</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">C</span><span class="plain-syntax">-></span><span class="element-syntax">edition</span><span class="plain-syntax">-></span><span class="element-syntax">work</span><span class="plain-syntax">-></span><span class="element-syntax">genre</span><span class="plain-syntax"> == </span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">RETRIEVE_POINTER_inform_extension</span><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">-></span><span class="element-syntax">metadata</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="identifier-syntax">dictionary</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ext_copy_cache</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="function-syntax">ExtensionManager::new_copy</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::new_copy</span></span>:<br/><a href="4-em.html#SP5">§5</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ext_copy_cache</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">ext_copy_cache</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Dictionaries::new</span><span class="plain-syntax">(16, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">key</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">key</span><span class="plain-syntax">, </span><span class="string-syntax">"%f"</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Dictionaries::find</span><span class="plain-syntax">(</span><span class="identifier-syntax">ext_copy_cache</span><span class="plain-syntax">, </span><span class="identifier-syntax">key</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Dictionaries::read_value</span><span class="plain-syntax">(</span><span class="identifier-syntax">ext_copy_cache</span><span class="plain-syntax">, </span><span class="identifier-syntax">key</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">C</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><a href="2-cps.html#SP3" class="function-link"><span class="function-syntax">Copies::new_in_file</span></a><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><a href="2-edt.html#SP1" class="function-link"><span class="function-syntax">Editions::new</span></a><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><a href="2-wrk.html#SP2" class="function-link"><span class="function-syntax">Works::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Untitled"</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Anonymous"</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">VersionNumbers::null</span><span class="plain-syntax">()),</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="5-es.html#SP2" class="function-link"><span class="function-syntax">Extensions::scan</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Dictionaries::create</span><span class="plain-syntax">(</span><span class="identifier-syntax">ext_copy_cache</span><span class="plain-syntax">, </span><span class="identifier-syntax">key</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Dictionaries::write_value</span><span class="plain-syntax">(</span><span class="identifier-syntax">ext_copy_cache</span><span class="plain-syntax">, </span><span class="identifier-syntax">key</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">key</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">C</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. Claiming. </b>Here <span class="extract"><span class="extract-syntax">arg</span></span> is a textual form of a filename or pathname, such as may have been
|
|
supplied at the command line; <span class="extract"><span class="extract-syntax">ext</span></span> is a substring of it, and is its extension
|
|
(e.g., <span class="extract"><span class="extract-syntax">jpg</span></span> if <span class="extract"><span class="extract-syntax">arg</span></span> is <span class="extract"><span class="extract-syntax">Geraniums.jpg</span></span>), or is empty if there isn't one;
|
|
<span class="extract"><span class="extract-syntax">directory_status</span></span> is true if we know for some reason that this is a directory
|
|
not a file, false if we know the reverse, and otherwise not applicable.
|
|
</p>
|
|
|
|
<p class="commentary">An extension, for us, needs to be a file with extension <span class="extract"><span class="extract-syntax">i7x</span></span>, but it needs
|
|
also to scan properly — which means the top line of the file has to be right.
|
|
So we'll open it and look.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::claim_as_copy</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::claim_as_copy</span></span>:<br/><a href="4-em.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> **</span><span class="identifier-syntax">C</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">arg</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ext</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">directory_status</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">directory_status</span><span class="plain-syntax"> == </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::eq_insensitive</span><span class="plain-syntax">(</span><span class="identifier-syntax">ext</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"i7x"</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::from_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">arg</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><a href="4-em.html#SP5" class="function-link"><span class="function-syntax">ExtensionManager::claim_file_as_copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="function-syntax">ExtensionManager::claim_file_as_copy</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::claim_file_as_copy</span></span>:<br/><a href="4-em.html#SP6">§6</a><br/>Dictionary - <a href="7-dct.html#SP9">§9</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">TextFiles::exists</span><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="4-em.html#SP4" class="function-link"><span class="function-syntax">ExtensionManager::new_copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. Searching. </b>Here we look through a nest to find all extensions matching the supplied
|
|
requirements.
|
|
</p>
|
|
|
|
<p class="commentary">For efficiency's sake, since the nest could contain many hundreds of
|
|
extensions, we narrow down to the author's subfolder if a specific
|
|
author is required. We cannot safely assume that the author's name specified
|
|
in <span class="extract"><span class="extract-syntax">req</span></span> has the same casing as in the subfolder name, so we go about this
|
|
cautiously for the sake of case-sensitive file systems.
|
|
</p>
|
|
|
|
<p class="commentary">Nobody should any longer be storing extension files without the file
|
|
extension <span class="extract"><span class="extract-syntax">.i7x</span></span>. This was allowed in the early days of Inform 7, and early
|
|
drafts of inblorb allowed it too, but this caused problems with emacs backup
|
|
files (with filenames ending <span class="extract"><span class="extract-syntax">~</span></span>) being picked up instead of the extension
|
|
files they were backing up. So inblorb now recognises only <span class="extract"><span class="extract-syntax">.i7x</span></span> files as
|
|
extensions. Similarly, another bad emacs habit is to write hidden symlinks,
|
|
with leafnames beginning <span class="extract"><span class="extract-syntax">.</span></span>, so we reject those too.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::search_nest_for</span><button class="popup" onclick="togglePopup('usagePopup7')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup7">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::search_nest_for</span></span>:<br/><a href="4-em.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_requirement</span><span class="plain-syntax"> *</span><span class="identifier-syntax">req</span><span class="plain-syntax">, </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">search_results</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">req</span><span class="plain-syntax">-></span><span class="element-syntax">work</span><span class="plain-syntax">-></span><span class="element-syntax">genre</span><span class="plain-syntax">) && (</span><a href="2-gnr.html#SP4" class="function-link"><span class="function-syntax">Genres::equivalent</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">req</span><span class="plain-syntax">-></span><span class="element-syntax">work</span><span class="plain-syntax">-></span><span class="element-syntax">genre</span><span class="plain-syntax">, </span><span class="identifier-syntax">extension_genre</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="4-em.html#SP3" class="function-link"><span class="function-syntax">ExtensionManager::path_within_nest</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::len</span><span class="plain-syntax">(</span><span class="identifier-syntax">req</span><span class="plain-syntax">-></span><span class="element-syntax">work</span><span class="plain-syntax">-></span><span class="element-syntax">author_name</span><span class="plain-syntax">) > </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Directories::listing</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Platform::is_folder_separator</span><span class="plain-syntax">(</span><span class="identifier-syntax">Str::get_last_char</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">))) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Str::delete_last_character</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Str::ne</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Reserved"</span><span class="plain-syntax">)) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">Str::eq_insensitive</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">req</span><span class="plain-syntax">-></span><span class="element-syntax">work</span><span class="plain-syntax">-></span><span class="element-syntax">author_name</span><span class="plain-syntax">))) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">Q</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">entry</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="4-em.html#SP6" class="function-link"><span class="function-syntax">ExtensionManager::search_nest_for_r</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">Q</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">req</span><span class="plain-syntax">, </span><span class="identifier-syntax">search_results</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><a href="4-em.html#SP6" class="function-link"><span class="function-syntax">ExtensionManager::search_nest_for_r</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">req</span><span class="plain-syntax">, </span><span class="identifier-syntax">search_results</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::search_nest_for_r</span><span class="plain-syntax">(</span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_requirement</span><span class="plain-syntax"> *</span><span class="identifier-syntax">req</span><span class="plain-syntax">, </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">search_results</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">recurse</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Directories::listing</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Platform::is_folder_separator</span><span class="plain-syntax">(</span><span class="identifier-syntax">Str::get_last_char</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">))) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Str::delete_last_character</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">recurse</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">Str::ne</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Reserved"</span><span class="plain-syntax">)) && (</span><span class="identifier-syntax">Str::ne</span><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Source"</span><span class="plain-syntax">))) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">Q</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">entry</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="4-em.html#SP6" class="function-link"><span class="function-syntax">ExtensionManager::search_nest_for_r</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">Q</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">req</span><span class="plain-syntax">, </span><span class="identifier-syntax">search_results</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">entry</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="4-em.html#SP6" class="function-link"><span class="function-syntax">ExtensionManager::search_nest_for_single_file</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">req</span><span class="plain-syntax">, </span><span class="identifier-syntax">search_results</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::search_nest_for_single_file</span><span class="plain-syntax">(</span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_requirement</span><span class="plain-syntax"> *</span><span class="identifier-syntax">req</span><span class="plain-syntax">, </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">search_results</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">fext</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Filenames::write_extension</span><span class="plain-syntax">(</span><span class="identifier-syntax">fext</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Str::eq_insensitive</span><span class="plain-syntax">(</span><span class="identifier-syntax">fext</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">".i7x"</span><span class="plain-syntax">)) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">Str::get_first_char</span><span class="plain-syntax">(</span><span class="identifier-syntax">Filenames::get_leafname</span><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">)) != </span><span class="character-syntax">'.'</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><a href="4-em.html#SP5" class="function-link"><span class="function-syntax">ExtensionManager::claim_file_as_copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">C</span><span class="plain-syntax">) && (</span><a href="2-rqr.html#SP7" class="function-link"><span class="function-syntax">Requirements::meets</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">-></span><span class="element-syntax">edition</span><span class="plain-syntax">, </span><span class="identifier-syntax">req</span><span class="plain-syntax">))) {</span>
|
|
<span class="plain-syntax"> </span><a href="2-nst.html#SP8" class="function-link"><span class="function-syntax">Nests::add_search_result</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">search_results</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="identifier-syntax">req</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">fext</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>§7. Copying. </b>Now the task is to copy an extension into place in a nest. This is easy,
|
|
since an extension is a single file; to sync, we just overwrite.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="function-syntax">ExtensionManager::filename_in_nest</span><button class="popup" onclick="togglePopup('usagePopup8')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup8">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::filename_in_nest</span></span>:<br/>The Report - <a href="7-tr.html#SP2_5">§2.5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_edition</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">EX</span><span class="plain-syntax"> = </span><a href="4-em.html#SP3" class="function-link"><span class="function-syntax">ExtensionManager::path_within_nest</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">leaf</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="2-edt.html#SP2" class="function-link"><span class="function-syntax">Editions::write_canonical_leaf</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">leaf</span><span class="plain-syntax">, </span><span class="identifier-syntax">E</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">leaf</span><span class="plain-syntax">, </span><span class="string-syntax">".i7x"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">EX</span><span class="plain-syntax">, </span><span class="identifier-syntax">E</span><span class="plain-syntax">-></span><span class="element-syntax">work</span><span class="plain-syntax">-></span><span class="element-syntax">author_name</span><span class="plain-syntax">), </span><span class="identifier-syntax">leaf</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">leaf</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">F</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::copy_to_nest</span><button class="popup" onclick="togglePopup('usagePopup9')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup9">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::copy_to_nest</span></span>:<br/><a href="4-em.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_nest</span><span class="plain-syntax"> *</span><span class="identifier-syntax">N</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">syncing</span><span class="plain-syntax">, </span><span class="reserved-syntax">build_methodology</span><span class="plain-syntax"> *</span><span class="identifier-syntax">meth</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax"> = </span><a href="4-em.html#SP7" class="function-link"><span class="function-syntax">ExtensionManager::filename_in_nest</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-></span><span class="element-syntax">edition</span><span class="plain-syntax">);</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">TextFiles::exists</span><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">syncing</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) { </span><a href="2-cps.html#SP15" class="function-link"><span class="function-syntax">Copies::overwrite_error</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax">; }</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">meth</span><span class="plain-syntax">-></span><span class="element-syntax">methodology</span><span class="plain-syntax"> == </span><span class="constant-syntax">DRY_RUN_METHODOLOGY</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="string-syntax">"mkdir -p "</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Shell::quote_path</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="identifier-syntax">Filenames::up</span><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">STDOUT</span><span class="plain-syntax">, </span><span class="string-syntax">"%S\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">command</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::create_in_file_system</span><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">-></span><span class="element-syntax">location</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::create_in_file_system</span><span class="plain-syntax">(</span><span class="identifier-syntax">Pathnames::down</span><span class="plain-syntax">(</span><span class="identifier-syntax">N</span><span class="plain-syntax">-></span><span class="element-syntax">location</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Extensions"</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Pathnames::create_in_file_system</span><span class="plain-syntax">(</span><span class="identifier-syntax">Filenames::up</span><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="string-syntax">"cp -f "</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Shell::quote_file</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-></span><span class="element-syntax">location_if_file</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Shell::quote_file</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="3-bs2.html#SP6" class="function-link"><span class="function-syntax">BuildSteps::shell</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">, </span><span class="identifier-syntax">meth</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">command</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>§8. Build graph. </b>As far as building goes, the build graph for an extension is just a single vertex:
|
|
you don't need to build an extension at all. But it may well have use edges,
|
|
thanks to including other extensions, and because of that we have to read the
|
|
source text before we can do anything with the graph.
|
|
</p>
|
|
|
|
<p class="commentary">We don't do this at the going operational stage because that would be
|
|
inefficient and might cause VM-related problems — it would mean that many
|
|
extraneous extensions, discovered only when scanning some directory, would
|
|
be read in as source text; and some of those might not be compatible with
|
|
the current VM settings.
|
|
</p>
|
|
|
|
<p class="commentary">We therefore generate the build graph only on demand.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::building_soon</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::building_soon</span></span>:<br/><a href="4-em.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="reserved-syntax">build_vertex</span><span class="plain-syntax"> **</span><span class="identifier-syntax">V</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="4-em.html#SP8" class="function-link"><span class="function-syntax">ExtensionManager::ensure_graphed</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax"> = </span><span class="identifier-syntax">C</span><span class="plain-syntax">-></span><span class="element-syntax">vertex</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::ensure_graphed</span><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="5-es.html#SP9" class="function-link"><span class="function-syntax">Extensions::construct_graph</span></a><span class="plain-syntax">(</span><a href="4-em.html#SP4" class="function-link"><span class="function-syntax">ExtensionManager::from_copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">build_vertex</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">V</span><span class="plain-syntax">, </span><span class="reserved-syntax">build_vertex</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-></span><span class="element-syntax">vertex</span><span class="plain-syntax">-></span><span class="element-syntax">use_edges</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="4-em.html#SP4" class="function-link"><span class="function-syntax">ExtensionManager::from_copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">V</span><span class="plain-syntax">-></span><span class="element-syntax">as_copy</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><a href="4-em.html#SP8" class="function-link"><span class="function-syntax">ExtensionManager::ensure_graphed</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">V</span><span class="plain-syntax">-></span><span class="element-syntax">as_copy</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>§9. Source text. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">ExtensionManager::read_source_text_for</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">ExtensionManager::read_source_text_for</span></span>:<br/><a href="4-em.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inbuild_genre</span><span class="plain-syntax"> *</span><span class="identifier-syntax">G</span><span class="plain-syntax">, </span><span class="reserved-syntax">inbuild_copy</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="5-es.html#SP10" class="function-link"><span class="function-syntax">Extensions::read_source_text_for</span></a><span class="plain-syntax">(</span><a href="4-em.html#SP4" class="function-link"><span class="function-syntax">ExtensionManager::from_copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<nav role="progress"><div class="progresscontainer">
|
|
<ul class="progressbar"><li class="progressprev"><a href="3-is4.html">❮</a></li><li class="progresschapter"><a href="P-wtmd.html">P</a></li><li class="progresschapter"><a href="1-sm.html">1</a></li><li class="progresschapter"><a href="2-gnr.html">2</a></li><li class="progresschapter"><a href="3-bg.html">3</a></li><li class="progresscurrentchapter">4</li><li class="progresscurrent">em</li><li class="progresssection"><a href="4-ebm.html">ebm</a></li><li class="progresssection"><a href="4-km.html">km</a></li><li class="progresssection"><a href="4-lm.html">lm</a></li><li class="progresssection"><a href="4-pm.html">pm</a></li><li class="progresssection"><a href="4-pbm.html">pbm</a></li><li class="progresssection"><a href="4-pfm.html">pfm</a></li><li class="progresssection"><a href="4-tm.html">tm</a></li><li class="progresschapter"><a href="5-es.html">5</a></li><li class="progresschapter"><a href="6-st.html">6</a></li><li class="progresschapter"><a href="7-tm.html">7</a></li><li class="progressnext"><a href="4-ebm.html">❯</a></li></ul></div>
|
|
</nav><!--End of weave-->
|
|
|
|
</main>
|
|
</body>
|
|
</html>
|
|
|