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405 lines
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<title>Program Control</title>
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<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<meta name="viewport" content="width=device-width initial-scale=1">
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}
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<body class="commentary-font">
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<nav role="navigation">
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<h1><a href="../index.html">
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<img src="../docs-assets/Octagram.png" width=72 height=72">
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</a></h1>
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<ul><li><a href="index.html"><span class="selectedlink">inweb</span></a></li>
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</ul><h2>Foundation Module</h2><ul>
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<li><a href="../foundation-module/index.html">foundation</a></li>
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<li><a href="../foundation-test/index.html">foundation-test</a></li>
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</ul><h2>Example Webs</h2><ul>
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<li><a href="../goldbach/index.html">goldbach</a></li>
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<li><a href="../twinprimes/twinprimes.html">twinprimes</a></li>
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<li><a href="../eastertide/index.html">eastertide</a></li>
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</ul><h2>Repository</h2><ul>
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<li><a href="https://github.com/ganelson/inweb"><img src="../docs-assets/github.png" height=18> github</a></li>
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</ul><h2>Related Projects</h2><ul>
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<li><a href="../../../inform/docs/index.html">inform</a></li>
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<li><a href="../../../intest/docs/index.html">intest</a></li>
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</ul>
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</nav>
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<main role="main">
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<!--Weave of 'Program Control' generated by Inweb-->
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<div class="breadcrumbs">
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="index.html">inweb</a></li><li><a href="index.html#1">Chapter 1: Top Level</a></li><li><b>Program Control</b></li></ul></div>
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<p class="purpose">The top level, which decides what is to be done and then carries this plan out.</p>
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<ul class="toc"><li><a href="1-pc.html#SP6">§6. Main routine</a></li><li><a href="1-pc.html#SP7">§7. Following instructions</a></li><li><a href="1-pc.html#SP8">§8. Error messages</a></li></ul><hr class="tocbar">
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>Inweb syntax has gradually shifted over the years, but there are two main
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versions: the second was cleaned up and simplified from the first in 2019.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">default_inweb_syntax</span><span class="plain-syntax"> = </span><span class="constant-syntax">V2_SYNTAX</span><span class="plain-syntax">;</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>Inweb has a single fundamental mode of operation: on any given run, it
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is either tangling, weaving or analysing. These processes use the same input
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and parsing code, but then do very different things to produce their output,
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so the fork in the road is not met until halfway through Inweb's execution.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">NO_MODE</span><span class="plain-syntax"> </span><span class="identifier-syntax">from</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax"> </span><span class="comment-syntax"> a special mode for doing nothing except printing command-line syntax</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">ANALYSE_MODE</span><span class="plain-syntax"> </span><span class="comment-syntax"> for -scan, -catalogue, -functions and so on</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">TANGLE_MODE</span><span class="plain-syntax"> </span><span class="comment-syntax"> for any form of -tangle</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">WEAVE_MODE</span><span class="plain-syntax"> </span><span class="comment-syntax"> for any form of -weave</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">TRANSLATE_MODE</span><span class="plain-syntax"> </span><span class="comment-syntax"> a special mode for translating a multi-web makefile</span>
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</pre>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">fundamental_mode</span><span class="plain-syntax"> = </span><span class="constant-syntax">NO_MODE</span><span class="plain-syntax">;</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>This operation will be applied to a single web, and will apply to the whole
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of that web unless we specify otherwise. Subsets of the web are represented by
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short pieces of text called "ranges". This can be a section range like
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<span class="extract"><span class="extract-syntax">2/pine</span></span>, a chapter number like <span class="extract"><span class="extract-syntax">12</span></span>, an appendix letter <span class="extract"><span class="extract-syntax">A</span></span> or the
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preliminaries block <span class="extract"><span class="extract-syntax">P</span></span>, the special chapter <span class="extract"><span class="extract-syntax">S</span></span> for the "Sections" chapter
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of an unchaptered web, or the special value <span class="extract"><span class="extract-syntax">0</span></span> to mean the entire web (which
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is the default).
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</p>
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<p class="commentary">When weaving in "swarm mode", however, the user chooses a multiplicity of
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operations rather than just one. Now it's no longer a matter of weaving a
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particular section or chapter: we can weave all of the sections or chapters,
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one after another.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">SWARM_OFF_SWM</span><span class="plain-syntax"> </span><span class="identifier-syntax">from</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">SWARM_INDEX_SWM</span><span class="plain-syntax"> </span><span class="comment-syntax"> make index(es) as if swarming, but don't actually swarm</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">SWARM_CHAPTERS_SWM</span><span class="plain-syntax"> </span><span class="comment-syntax"> swarm the chapters</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">SWARM_SECTIONS_SWM</span><span class="plain-syntax"> </span><span class="comment-syntax"> swarm the individual sections</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b>In order to run, Inweb needs to know where it is installed — this
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enables it to find its configuration file, the macros file, and so on.
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Unless told otherwise on the command line, we'll assume Inweb is present
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in the current working directory. The "materials" will then be in a further
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subfolder called <span class="extract"><span class="extract-syntax">Materials</span></span>.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">path_to_inweb</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> where we are installed</span>
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<span class="reserved-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">path_to_inweb_materials</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> the materials pathname</span>
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<span class="reserved-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">path_to_inweb_patterns</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> where built-in patterns are stored</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b>We count the errors in order to be able to exit with a suitable exit code.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">no_inweb_errors</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">verbose_mode</span><span class="plain-syntax"> = </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">;</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. Main routine. </b></p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">main</span><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">argc</span><span class="plain-syntax">, </span><span class="reserved-syntax">char</span><span class="plain-syntax"> **</span><span class="identifier-syntax">argv</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP6_1" class="named-paragraph-link"><span class="named-paragraph">Initialise inweb</span><span class="named-paragraph-number">6.1</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inweb_instructions</span><span class="plain-syntax"> </span><span class="identifier-syntax">args</span><span class="plain-syntax"> = </span><a href="1-cnf.html#SP2" class="function-link"><span class="function-syntax">Configuration::read</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">argc</span><span class="plain-syntax">, </span><span class="identifier-syntax">argv</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">verbose_mode</span><span class="plain-syntax"> = </span><span class="identifier-syntax">args</span><span class="plain-syntax">.</span><span class="element-syntax">verbose_switch</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">fundamental_mode</span><span class="plain-syntax"> = </span><span class="identifier-syntax">args</span><span class="plain-syntax">.</span><span class="element-syntax">inweb_mode</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">path_to_inweb</span><span class="plain-syntax"> = </span><a href="../foundation-module/3-pth.html#SP3" class="function-link"><span class="function-syntax">Pathnames::installation_path</span></a><span class="plain-syntax">(</span><span class="string-syntax">"INWEB_PATH"</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"inweb"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">verbose_mode</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"Installation path is %p\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">path_to_inweb</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="../foundation-module/2-lcl.html#SP4" class="function-link"><span class="function-syntax">Locales::write_locales</span></a><span class="plain-syntax">(</span><span class="constant-syntax">STDOUT</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">path_to_inweb_patterns</span><span class="plain-syntax"> = </span><a href="../foundation-module/3-pth.html#SP4" class="function-link"><span class="function-syntax">Pathnames::down</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">path_to_inweb</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Patterns"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">path_to_inweb_materials</span><span class="plain-syntax"> = </span><a href="../foundation-module/3-pth.html#SP4" class="function-link"><span class="function-syntax">Pathnames::down</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">path_to_inweb</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Materials"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="1-pc.html#SP7" class="function-link"><span class="function-syntax">Main::follow_instructions</span></a><span class="plain-syntax">(&</span><span class="identifier-syntax">args</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP6_2" class="named-paragraph-link"><span class="named-paragraph">Shut inweb down</span><span class="named-paragraph-number">6.2</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP6_1" class="paragraph-anchor"></a><b>§6.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Initialise inweb</span><span class="named-paragraph-number">6.1</span></span><span class="comment-syntax"> =</span>
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><a href="../foundation-module/1-fm.html#SP8" class="function-link"><span class="function-syntax">Foundation::start</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">argc</span><span class="plain-syntax">, </span><span class="identifier-syntax">argv</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="5-fm.html#SP3" class="function-link"><span class="function-syntax">Formats::create_weave_formats</span></a><span class="plain-syntax">();</span>
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</pre>
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<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP6">§6</a>.</li></ul>
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<p class="commentary firstcommentary"><a id="SP6_2" class="paragraph-anchor"></a><b>§6.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Shut inweb down</span><span class="named-paragraph-number">6.2</span></span><span class="comment-syntax"> =</span>
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><a href="../foundation-module/1-fm.html#SP9" class="function-link"><span class="function-syntax">Foundation::end</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="identifier-syntax">no_inweb_errors</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">)?0:1;</span>
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</pre>
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<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP6">§6</a>.</li></ul>
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<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>§7. Following instructions. </b>This is the whole program in a nutshell, and it's a pretty old-school
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program: some input, some thinking, a choice of three forms of output.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Main::follow_instructions</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">Main::follow_instructions</span></span>:<br/><a href="1-pc.html#SP6">§6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inweb_instructions</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ins</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">web</span><span class="plain-syntax"> *</span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_web</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_file</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><a href="2-tr.html#SP4" class="function-link"><span class="function-syntax">Reader::load_web</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_web</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_file</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><a href="../foundation-module/8-wm.html#SP6" class="function-link"><span class="function-syntax">WebModules::make_search_path</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">import_setting</span><span class="plain-syntax">), </span><span class="constant-syntax">TRUE</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">-></span><span class="identifier-syntax">redirect_weaves_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">weave_into_setting</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><a href="2-tr.html#SP5" class="function-link"><span class="function-syntax">Reader::read_web</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-tp.html#SP1" class="function-link"><span class="function-syntax">Parser::parse_web</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">inweb_mode</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">no_inweb_errors</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">inweb_mode</span><span class="plain-syntax"> == </span><span class="constant-syntax">TRANSLATE_MODE</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_1" class="named-paragraph-link"><span class="named-paragraph">Translate a makefile</span><span class="named-paragraph-number">7.1</span></a></span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">show_languages_switch</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_2" class="named-paragraph-link"><span class="named-paragraph">List available programming languages</span><span class="named-paragraph-number">7.2</span></a></span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">test_language_setting</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">test_language_on_setting</span><span class="plain-syntax">)) </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_3" class="named-paragraph-link"><span class="named-paragraph">Test a language</span><span class="named-paragraph-number">7.3</span></a></span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">inweb_mode</span><span class="plain-syntax"> != </span><span class="constant-syntax">NO_MODE</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_4" class="named-paragraph-link"><span class="named-paragraph">Analyse, tangle or weave an existing web</span><span class="named-paragraph-number">7.4</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP7_1" class="paragraph-anchor"></a><b>§7.1. </b>This is a one-off featurette:
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Translate a makefile</span><span class="named-paragraph-number">7.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">makefile_setting</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">prototype_setting</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">prototype_setting</span><span class="plain-syntax"> = </span><a href="../foundation-module/3-fln.html#SP3" class="function-link"><span class="function-syntax">Filenames::from_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"makescript.txt"</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">gitignore_setting</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">prototype_setting</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">prototype_setting</span><span class="plain-syntax"> = </span><a href="../foundation-module/3-fln.html#SP3" class="function-link"><span class="function-syntax">Filenames::from_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"gitignorescript.txt"</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">writeme_setting</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">prototype_setting</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">prototype_setting</span><span class="plain-syntax"> = </span><a href="../foundation-module/3-fln.html#SP3" class="function-link"><span class="function-syntax">Filenames::from_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"READMEscript.txt"</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">makefile_setting</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="6-mkf.html#SP1" class="function-link"><span class="function-syntax">Makefiles::write</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="identifier-syntax">prototype_setting</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">makefile_setting</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><a href="../foundation-module/8-wm.html#SP6" class="function-link"><span class="function-syntax">WebModules::make_search_path</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">import_setting</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">gitignore_setting</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="6-gs.html#SP1" class="function-link"><span class="function-syntax">Git::write_gitignore</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">prototype_setting</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">gitignore_setting</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">advance_setting</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="../foundation-module/8-bf.html#SP7" class="function-link"><span class="function-syntax">BuildFiles::advance</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="identifier-syntax">advance_setting</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">writeme_setting</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="6-rw.html#SP1" class="function-link"><span class="function-syntax">Readme::write</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">prototype_setting</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">writeme_setting</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7">§7</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7_2" class="paragraph-anchor"></a><b>§7.2. </b>As is this:
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">List available programming languages</span><span class="named-paragraph-number">7.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><a href="4-pl.html#SP5" class="function-link"><span class="function-syntax">Languages::read_definitions</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="4-pl.html#SP3" class="function-link"><span class="function-syntax">Languages::show</span></a><span class="plain-syntax">(</span><span class="constant-syntax">STDOUT</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7">§7</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7_3" class="paragraph-anchor"></a><b>§7.3. </b>And this:
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Test a language</span><span class="named-paragraph-number">7.3</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">test_language_setting</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">test_language_on_setting</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">matter</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">coloured</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="4-tp.html#SP7" class="function-link"><span class="function-syntax">Painter::colour_file</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">test_language_setting</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">test_language_on_setting</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">matter</span><span class="plain-syntax">, </span><span class="identifier-syntax">coloured</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"Test of colouring for language %S:\n%S\n%S\n"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">test_language_setting</span><span class="plain-syntax">-></span><span class="element-syntax">language_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">matter</span><span class="plain-syntax">, </span><span class="identifier-syntax">coloured</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">matter</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">coloured</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="../foundation-module/3-em.html#SP2" class="function-link"><span class="function-syntax">Errors::fatal</span></a><span class="plain-syntax">(</span><span class="string-syntax">"-test-language and -test-language-on must both be given"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7">§7</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7_4" class="paragraph-anchor"></a><b>§7.4. </b>But otherwise we do something with the given web:
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Analyse, tangle or weave an existing web</span><span class="named-paragraph-number">7.4</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><a href="2-tr.html#SP16" class="function-link"><span class="function-syntax">Reader::print_web_statistics</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">inweb_mode</span><span class="plain-syntax"> == </span><span class="constant-syntax">ANALYSE_MODE</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_4_1" class="named-paragraph-link"><span class="named-paragraph">Analyse the web</span><span class="named-paragraph-number">7.4.1</span></a></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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">inweb_mode</span><span class="plain-syntax"> == </span><span class="constant-syntax">TANGLE_MODE</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_4_2" class="named-paragraph-link"><span class="named-paragraph">Tangle the web</span><span class="named-paragraph-number">7.4.2</span></a></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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">inweb_mode</span><span class="plain-syntax"> == </span><span class="constant-syntax">WEAVE_MODE</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_4_3" class="named-paragraph-link"><span class="named-paragraph">Weave the web</span><span class="named-paragraph-number">7.4.3</span></a></span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7">§7</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7_4_1" class="paragraph-anchor"></a><b>§7.4.1. </b>"Analysis" invokes any combination of the following diagnostic tools:
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Analyse the web</span><span class="named-paragraph-number">7.4.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">swarm_mode</span><span class="plain-syntax"> != </span><span class="constant-syntax">SWARM_OFF_SWM</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="../foundation-module/3-em.html#SP2" class="function-link"><span class="function-syntax">Errors::fatal</span></a><span class="plain-syntax">(</span><span class="string-syntax">"only specific parts of the web can be analysed"</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">catalogue_switch</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="3-ta.html#SP2" class="function-link"><span class="function-syntax">Analyser::catalogue_the_sections</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range</span><span class="plain-syntax">, </span><span class="constant-syntax">BASIC_SECTIONCAT</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">functions_switch</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="3-ta.html#SP2" class="function-link"><span class="function-syntax">Analyser::catalogue_the_sections</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range</span><span class="plain-syntax">, </span><span class="constant-syntax">FUNCTIONS_SECTIONCAT</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">structures_switch</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="3-ta.html#SP2" class="function-link"><span class="function-syntax">Analyser::catalogue_the_sections</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range</span><span class="plain-syntax">, </span><span class="constant-syntax">STRUCTURES_SECTIONCAT</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">makefile_setting</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="3-ta.html#SP13" class="function-link"><span class="function-syntax">Analyser::write_makefile</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">makefile_setting</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><a href="../foundation-module/8-wm.html#SP6" class="function-link"><span class="function-syntax">WebModules::make_search_path</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">import_setting</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">gitignore_setting</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="3-ta.html#SP13" class="function-link"><span class="function-syntax">Analyser::write_gitignore</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">gitignore_setting</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">advance_switch</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="../foundation-module/8-bf.html#SP7" class="function-link"><span class="function-syntax">BuildFiles::advance_for_web</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">-></span><span class="element-syntax">md</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">scan_switch</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><a href="3-ta.html#SP1" class="function-link"><span class="function-syntax">Analyser::scan_line_categories</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7_4">§7.4</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7_4_2" class="paragraph-anchor"></a><b>§7.4.2. </b>We can tangle to any one of what might be several targets, numbered upwards
|
|
from 0. Target 0 always exists, and is the main program forming the web. For
|
|
many webs, this will in fact be the only target, but Inweb also allows
|
|
marked sections of a web to be independent targets — the idea here is to
|
|
allow an Appendix in the web to contain a configuration file, or auxiliary
|
|
program, needed for the main program to work; this might be written in a
|
|
quite different language from the rest of the web, and tangles to a different
|
|
output, but needs to be part of the web since it's essential to an understanding
|
|
of the whole system.
|
|
</p>
|
|
|
|
<p class="commentary">In this section we determine <span class="extract"><span class="extract-syntax">tn</span></span>, the target number wanted, and <span class="extract"><span class="extract-syntax">tangle_to</span></span>,
|
|
the filename of the tangled code to write. This may have been set at the command
|
|
line , but otherwise we impose a sensible choice based on the target.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Tangle the web</span><span class="named-paragraph-number">7.4.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">tangle_leaf</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">tangle_target</span><span class="plain-syntax"> *</span><span class="identifier-syntax">tn</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><a href="../foundation-module/4-sm.html#SP22" class="function-link"><span class="function-syntax">Str::eq_wide_string</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="identifier-syntax">chosen_range</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"0"</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_4_2_1" class="named-paragraph-link"><span class="named-paragraph">Work out main tangle destination</span><span class="named-paragraph-number">7.4.2.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="2-tr.html#SP8" class="function-link"><span class="function-syntax">Reader::get_section_for_range</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_4_2_2" class="named-paragraph-link"><span class="named-paragraph">Work out an independent tangle destination, from one section of the web</span><span class="named-paragraph-number">7.4.2.2</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../foundation-module/4-sm.html#SP8" class="function-link"><span class="function-syntax">Str::len</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">tangle_leaf</span><span class="plain-syntax">) == </span><span class="constant-syntax">0</span><span class="plain-syntax">) { </span><a href="../foundation-module/3-em.html#SP2" class="function-link"><span class="function-syntax">Errors::fatal</span></a><span class="plain-syntax">(</span><span class="string-syntax">"no tangle destination known"</span><span class="plain-syntax">); }</span>
|
|
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">tangle_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">tangle_setting</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">tangle_to</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">pathname</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="2-tr.html#SP7" class="function-link"><span class="function-syntax">Reader::tangled_folder</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</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">W</span><span class="plain-syntax">-></span><span class="element-syntax">md</span><span class="plain-syntax">-></span><span class="element-syntax">single_file</span><span class="plain-syntax">) </span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="../foundation-module/3-fln.html#SP6" class="function-link"><span class="function-syntax">Filenames::up</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">-></span><span class="element-syntax">md</span><span class="plain-syntax">-></span><span class="element-syntax">single_file</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">tangle_to</span><span class="plain-syntax"> = </span><a href="../foundation-module/3-fln.html#SP2" class="function-link"><span class="function-syntax">Filenames::in</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">tangle_leaf</span><span class="plain-syntax">);</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">tn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">tn</span><span class="plain-syntax"> = </span><a href="3-tt.html#SP4" class="function-link"><span class="function-syntax">Tangler::primary_target</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="3-tt.html#SP1" class="function-link"><span class="function-syntax">Tangler::tangle</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">tn</span><span class="plain-syntax">, </span><span class="identifier-syntax">tangle_to</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">ctags_switch</span><span class="plain-syntax">) </span><a href="6-cs.html#SP2" class="function-link"><span class="function-syntax">Ctags::write</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">ctags_setting</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">tangle_leaf</span><span class="plain-syntax">)</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7_4">§7.4</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7_4_2_1" class="paragraph-anchor"></a><b>§7.4.2.1. </b>Here the target number is 0, and the tangle is of the main part of the web,
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|
which for many small webs will be the entire thing.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Work out main tangle destination</span><span class="named-paragraph-number">7.4.2.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">tn</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><a href="../foundation-module/8-bdfw.html#SP6" class="function-link"><span class="function-syntax">Bibliographic::data_exists</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">-></span><span class="element-syntax">md</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Short Title"</span><span class="plain-syntax">))</span>
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|
<span class="plain-syntax"> </span><a href="../foundation-module/4-sm.html#SP17" class="function-link"><span class="function-syntax">Str::copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">tangle_leaf</span><span class="plain-syntax">, </span><a href="../foundation-module/8-bdfw.html#SP6" class="function-link"><span class="function-syntax">Bibliographic::get_datum</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">-></span><span class="element-syntax">md</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Short Title"</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span>
|
|
<span class="plain-syntax"> </span><a href="../foundation-module/4-sm.html#SP17" class="function-link"><span class="function-syntax">Str::copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">tangle_leaf</span><span class="plain-syntax">, </span><a href="../foundation-module/8-bdfw.html#SP6" class="function-link"><span class="function-syntax">Bibliographic::get_datum</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">-></span><span class="element-syntax">md</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Title"</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><a href="../foundation-module/4-sm.html#SP17" class="function-link"><span class="function-syntax">Str::concatenate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">tangle_leaf</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">-></span><span class="element-syntax">main_language</span><span class="plain-syntax">-></span><span class="element-syntax">file_extension</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7_4_2">§7.4.2</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7_4_2_2" class="paragraph-anchor"></a><b>§7.4.2.2. </b>If someone tangles, say, <span class="extract"><span class="extract-syntax">2/eg</span></span> then the default filename is "Example Section".
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Work out an independent tangle destination, from one section of the web</span><span class="named-paragraph-number">7.4.2.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">section</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><a href="2-tr.html#SP8" class="function-link"><span class="function-syntax">Reader::get_section_for_range</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">tn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S</span><span class="plain-syntax">-></span><span class="element-syntax">sect_target</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">tn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><a href="../foundation-module/3-em.html#SP2" class="function-link"><span class="function-syntax">Errors::fatal</span></a><span class="plain-syntax">(</span><span class="string-syntax">"section cannot be independently tangled"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="../foundation-module/4-sm.html#SP17" class="function-link"><span class="function-syntax">Str::copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">tangle_leaf</span><span class="plain-syntax">, </span><a href="../foundation-module/3-fln.html#SP7" class="function-link"><span class="function-syntax">Filenames::get_leafname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">-></span><span class="element-syntax">md</span><span class="plain-syntax">-></span><span class="element-syntax">source_file_for_section</span><span class="plain-syntax">));</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7_4_2">§7.4.2</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7_4_3" class="paragraph-anchor"></a><b>§7.4.3. </b>Weaving is not actually easier, it's just more thoroughly delegated:
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Weave the web</span><span class="named-paragraph-number">7.4.3</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><a href="2-pn.html#SP1" class="function-link"><span class="function-syntax">Numbering::number_web</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">theme_tag</span><span class="plain-syntax"> *</span><span class="identifier-syntax">tag</span><span class="plain-syntax"> = </span><a href="2-tgs.html#SP2" class="function-link"><span class="function-syntax">Tags::find_by_name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">tag_setting</span><span class="plain-syntax">, </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><a href="../foundation-module/4-sm.html#SP8" class="function-link"><span class="function-syntax">Str::len</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">tag_setting</span><span class="plain-syntax">) > </span><span class="constant-syntax">0</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">tag</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><a href="../foundation-module/3-em.html#SP2" class="function-link"><span class="function-syntax">Errors::fatal_with_text</span></a><span class="plain-syntax">(</span><span class="string-syntax">"no such theme as '%S'"</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">tag_setting</span><span class="plain-syntax">);</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">weave_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pattern</span><span class="plain-syntax"> = </span><a href="1-ptt.html#SP2" class="function-link"><span class="function-syntax">Patterns::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">weave_pattern</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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range_actually_chosen</span><span class="plain-syntax"> == </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_file</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><a href="1-cnf.html#SP6" class="function-link"><span class="function-syntax">Configuration::set_range</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ins</span><span class="plain-syntax">, </span><span class="identifier-syntax">pattern</span><span class="plain-syntax">-></span><span class="element-syntax">default_range</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">r</span><span class="plain-syntax"> = </span><a href="5-fm.html#SP4" class="function-link"><span class="function-syntax">Formats::begin_weaving</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">pattern</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">r</span><span class="plain-syntax"> != </span><span class="constant-syntax">SWARM_OFF_SWM</span><span class="plain-syntax">) </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="identifier-syntax">swarm_mode</span><span class="plain-syntax"> = </span><span class="identifier-syntax">r</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-pc.html#SP7_4_3_1" class="named-paragraph-link"><span class="named-paragraph">Assign section numbers for printing purposes</span><span class="named-paragraph-number">7.4.3.1</span></a></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">ins</span><span class="plain-syntax">-></span><span class="element-syntax">swarm_mode</span><span class="plain-syntax"> == </span><span class="constant-syntax">SWARM_OFF_SWM</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="1-ts.html#SP2" class="function-link"><span class="function-syntax">Swarm::weave_subset</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range</span><span class="plain-syntax">, </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">tag</span><span class="plain-syntax">, </span><span class="identifier-syntax">pattern</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">weave_to_setting</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">weave_into_setting</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">breadcrumb_setting</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">navigation_setting</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="1-ts.html#SP1" class="function-link"><span class="function-syntax">Swarm::weave</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">swarm_mode</span><span class="plain-syntax">, </span><span class="identifier-syntax">tag</span><span class="plain-syntax">, </span><span class="identifier-syntax">pattern</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">weave_to_setting</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">weave_into_setting</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">breadcrumb_setting</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">navigation_setting</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><a href="5-fm.html#SP4" class="function-link"><span class="function-syntax">Formats::end_weaving</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">pattern</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7_4">§7.4</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP7_4_3_1" class="paragraph-anchor"></a><b>§7.4.3.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Assign section numbers for printing purposes</span><span class="named-paragraph-number">7.4.3.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">section</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">; </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">k</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">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="reserved-syntax">section</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="2-tr.html#SP10" class="function-link"><span class="function-syntax">Reader::range_within</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">-></span><span class="element-syntax">md</span><span class="plain-syntax">-></span><span class="element-syntax">sect_range</span><span class="plain-syntax">, </span><span class="identifier-syntax">ins</span><span class="plain-syntax">-></span><span class="element-syntax">chosen_range</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">S</span><span class="plain-syntax">-></span><span class="element-syntax">printed_number</span><span class="plain-syntax"> = </span><span class="identifier-syntax">k</span><span class="plain-syntax">++;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="1-pc.html#SP7_4_3">§7.4.3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>§8. Error messages. </b>The Foundation module provides convenient functions to issue error messages,
|
|
but we'll use the following wrapper when issuing an error at a line of web
|
|
source:
|
|
</p>
|
|
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Main::error_in_web</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">Main::error_in_web</span></span>:<br/>Configuration - <a href="1-cnf.html#SP6">§6</a><br/>The Swarm - <a href="1-ts.html#SP3">§3</a><br/>Assets, Plugins and Colour Schemes - <a href="1-apacs.html#SP6">§6</a>, <a href="1-apacs.html#SP7">§7</a><br/>The Parser - <a href="2-tp.html#SP1_1_7_3">§1.1.7.3</a>, <a href="2-tp.html#SP1_1_7_4">§1.1.7.4</a>, <a href="2-tp.html#SP1_1_7_7">§1.1.7.7</a>, <a href="2-tp.html#SP1_1_7_7_1">§1.1.7.7.1</a>, <a href="2-tp.html#SP1_1_7_5_1">§1.1.7.5.1</a>, <a href="2-tp.html#SP1_1_7_5_1_1">§1.1.7.5.1.1</a>, <a href="2-tp.html#SP1_1_7_5_1_2">§1.1.7.5.1.2</a>, <a href="2-tp.html#SP1_1_7_5_1_3">§1.1.7.5.1.3</a>, <a href="2-tp.html#SP1_1_7_5_1_4">§1.1.7.5.1.4</a>, <a href="2-tp.html#SP1_1_7_5_1_7">§1.1.7.5.1.7</a>, <a href="2-tp.html#SP1_1_4_3_1">§1.1.4.3.1</a>, <a href="2-tp.html#SP4">§4</a><br/>Enumerated Constants - <a href="2-ec.html#SP3_1">§3.1</a>, <a href="2-ec.html#SP3_2">§3.2</a>, <a href="2-ec.html#SP3_3">§3.3</a><br/>The Analyser - <a href="3-ta.html#SP4_1">§4.1</a><br/>The Weaver - <a href="3-tw.html#SP2_7_2">§2.7.2</a>, <a href="3-tw.html#SP2_7_2_3_1_5">§2.7.2.3.1.5</a><br/>The Weaver of Text - <a href="3-twot.html#SP1_4">§1.4</a><br/>The Tangler - <a href="3-tt.html#SP1_1_1_1">§1.1.1.1</a>, <a href="3-tt.html#SP3_1">§3.1</a><br/>Types and Functions - <a href="4-taf.html#SP7_3">§7.3</a><br/>Language Methods - <a href="4-lm.html#SP10">§10</a><br/>ACME Support - <a href="4-as.html#SP7">§7</a><br/>C-Like Languages - <a href="4-cl.html#SP3">§3</a>, <a href="4-cl.html#SP3_1">§3.1</a>, <a href="4-cl.html#SP3_2_2_1">§3.2.2.1</a>, <a href="4-cl.html#SP6_4">§6.4</a><br/>InC Support - <a href="4-is.html#SP10">§10</a>, <a href="4-is.html#SP11_2">§11.2</a><br/>HTML Formats - <a href="5-hf.html#SP5_11">§5.11</a>, <a href="5-hf.html#SP5_14">§5.14</a>, <a href="5-hf.html#SP5_16">§5.16</a><br/>Colonies - <a href="6-cln.html#SP8_4">§8.4</a>, <a href="6-cln.html#SP10">§10</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">message</span><span class="plain-syntax">, </span><span class="reserved-syntax">source_line</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sl</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">sl</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><a href="../foundation-module/3-em.html#SP5" class="function-link"><span class="function-syntax">Errors::in_text_file_S</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">message</span><span class="plain-syntax">, &(</span><span class="identifier-syntax">sl</span><span class="plain-syntax">-></span><span class="element-syntax">source</span><span class="plain-syntax">));</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="constant-syntax">STDERR</span><span class="plain-syntax">, </span><span class="string-syntax">"%07d %S\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">sl</span><span class="plain-syntax">-></span><span class="element-syntax">source</span><span class="plain-syntax">.</span><span class="element-syntax">line_count</span><span class="plain-syntax">, </span><span class="identifier-syntax">sl</span><span class="plain-syntax">-></span><span class="element-syntax">text</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><a href="../foundation-module/3-em.html#SP5" class="function-link"><span class="function-syntax">Errors::in_text_file_S</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">message</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">no_inweb_errors</span><span class="plain-syntax">++;</span>
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<span class="plain-syntax">}</span>
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</pre>
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