ifhub/inform7
1
0
Fork 0
mirror of https://github.com/ganelson/inform.git synced 2024-07-03 07:24:58 +03:00
Code Issues Projects Releases Wiki Activity
inform7/docs/inpolicy/2-rw.html
Graham Nelson d8e8d824cc Tidied compilation modules
2019-04-22 15:42:10 +01:00

288 lines
46 KiB
HTML
Raw Blame History

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>2/vn</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="Content-Language" content="en-gb">
<link href="inweb.css" rel="stylesheet" rev="stylesheet" type="text/css">
</head>
<body>
<!--Weave of '2/rw' generated by 7-->
<ul class="crumbs"><li><a href="../webs.html">&#9733;</a></li><li><a href="index.html">inpolicy 1</a></li><li><a href="index.html#2">Chapter 2: Policies</a></li><li><b>Readme Writeme</b></li></ul><p class="purpose">To construct Readme and similar files.</p>
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. </b></p>
<pre class="display">
<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">write_state</span><span class="plain"> {</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">OUT</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">file_open</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">text_stream</span><span class="plain"> </span><span class="identifier">the_file</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">macro</span><span class="plain"> *</span><span class="identifier">current_definition</span><span class="plain">;</span>
<span class="plain">} </span><span class="reserved">write_state</span><span class="plain">;</span>
<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">macro</span><span class="plain"> {</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">name</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">content</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">macro_tokens</span><span class="plain"> </span><span class="identifier">tokens</span><span class="plain">;</span>
<span class="constant">MEMORY_MANAGEMENT</span>
<span class="plain">} </span><span class="reserved">macro</span><span class="plain">;</span>
<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">macro_tokens</span><span class="plain"> {</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">macro</span><span class="plain"> *</span><span class="identifier">bound_to</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">pars</span><span class="plain">[8];</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">no_pars</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">macro_tokens</span><span class="plain"> *</span><span class="identifier">down</span><span class="plain">;</span>
<span class="constant">MEMORY_MANAGEMENT</span>
<span class="plain">} </span><span class="reserved">macro_tokens</span><span class="plain">;</span>
<span class="reserved">macro_tokens</span><span class="plain"> *</span><span class="identifier">mt_stack</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Readme::write</span><span class="plain">(</span><span class="reserved">filename</span><span class="plain"> *</span><span class="identifier">from</span><span class="plain">) {</span>
<span class="reserved">write_state</span><span class="plain"> </span><span class="identifier">ws</span><span class="plain">;</span>
<span class="identifier">ws</span><span class="element">.OUT</span><span class="plain"> = </span><span class="constant">STDOUT</span><span class="plain">;</span>
<span class="identifier">ws</span><span class="element">.file_open</span><span class="plain"> = </span><span class="constant">FALSE</span><span class="plain">;</span>
<span class="identifier">ws</span><span class="element">.current_definition</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="functiontext">TextFiles::read</span><span class="plain">(</span><span class="identifier">from</span><span class="plain">, </span><span class="constant">FALSE</span><span class="plain">, </span><span class="string">"unable to read template file"</span><span class="plain">, </span><span class="constant">TRUE</span><span class="plain">,</span>
<span class="plain">&amp;</span><span class="functiontext">Readme::write_line</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">, (</span><span class="reserved">void</span><span class="plain"> *) &amp;</span><span class="identifier">ws</span><span class="plain">);</span>
<span class="functiontext">Readme::close</span><span class="plain">(&amp;</span><span class="identifier">ws</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Readme::write is used in 1/mn (<a href="1-mn.html#SP2">&#167;2</a>).</p>
<p class="endnote">The structure write_state is private to this section.</p>
<p class="endnote">The structure macro is accessed in 2/pc, 2/vn and here.</p>
<p class="endnote">The structure macro_tokens is private to this section.</p>
<p class="inwebparagraph"><a id="SP2"></a><b>&#167;2. </b></p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Readme::write_line</span><span class="plain">(</span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">text</span><span class="plain">, </span><span class="reserved">text_file_position</span><span class="plain"> *</span><span class="identifier">tfp</span><span class="plain">, </span><span class="reserved">void</span><span class="plain"> *</span><span class="identifier">state</span><span class="plain">) {</span>
<span class="reserved">write_state</span><span class="plain"> *</span><span class="identifier">ws</span><span class="plain"> = (</span><span class="reserved">write_state</span><span class="plain"> *) </span><span class="identifier">state</span><span class="plain">;</span>
<span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">OUT</span><span class="plain"> = </span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;OUT</span><span class="plain">;</span>
<span class="reserved">match_results</span><span class="plain"> </span><span class="identifier">mr</span><span class="plain"> = </span><span class="functiontext">Regexp::create_mr</span><span class="plain">();</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Regexp::match</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">, </span><span class="identifier">text</span><span class="plain">, </span><span class="identifier">L</span><span class="string">" *@end *"</span><span class="plain">)) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="functiontext">Errors::in_text_file</span><span class="plain">(</span><span class="string">"@end without @define"</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="reserved">else</span><span class="plain"> </span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Str::len</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain">-</span><span class="element">&gt;content</span><span class="plain">) &gt; 0)</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain">-</span><span class="element">&gt;content</span><span class="plain">, </span><span class="string">"\</span><span class="plain">n</span><span class="string">"</span><span class="plain">);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain">-</span><span class="element">&gt;content</span><span class="plain">, </span><span class="string">"%S"</span><span class="plain">, </span><span class="identifier">text</span><span class="plain">);</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Regexp::match</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">, </span><span class="identifier">text</span><span class="plain">, </span><span class="identifier">L</span><span class="string">" *@define (%i+)(%c*)"</span><span class="plain">)) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain">) </span><span class="functiontext">Errors::in_text_file</span><span class="plain">(</span><span class="string">"@define without @end"</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain"> = </span><span class="identifier">CREATE</span><span class="plain">(</span><span class="reserved">macro</span><span class="plain">);</span>
<span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain">-</span><span class="element">&gt;name</span><span class="plain"> = </span><span class="functiontext">Str::duplicate</span><span class="plain">(</span><span class="identifier">mr</span><span class="element">.exp</span><span class="plain">[0]);</span>
<span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain">-</span><span class="element">&gt;tokens</span><span class="plain"> = </span><span class="functiontext">Readme::parse_token_list</span><span class="plain">(</span><span class="identifier">mr</span><span class="element">.exp</span><span class="plain">[1], </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;current_definition</span><span class="plain">-</span><span class="element">&gt;content</span><span class="plain"> = </span><span class="functiontext">Str::new</span><span class="plain">();</span>
<span class="plain">}</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Regexp::match</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">, </span><span class="identifier">text</span><span class="plain">, </span><span class="identifier">L</span><span class="string">" *@-&gt; *(%c+?) *"</span><span class="plain">)) {</span>
<span class="reserved">pathname</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain"> = </span><span class="functiontext">Filenames::get_path_to</span><span class="plain">(</span><span class="identifier">tfp</span><span class="plain">-</span><span class="element">&gt;text_file_filename</span><span class="plain">);</span>
<span class="reserved">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain"> = </span><span class="functiontext">Filenames::from_text_relative</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="identifier">mr</span><span class="element">.exp</span><span class="plain">[0]);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="constant">STDOUT</span><span class="plain">, </span><span class="string">"inpolicy: %f --&gt; %f\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">-</span><span class="element">&gt;text_file_filename</span><span class="plain">, </span><span class="identifier">F</span><span class="plain">);</span>
<span class="functiontext">Readme::close</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Streams::open_to_file</span><span class="plain">(&amp;(</span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;the_file</span><span class="plain">), </span><span class="identifier">F</span><span class="plain">, </span><span class="constant">UTF8_ENC</span><span class="plain">) == </span><span class="constant">FALSE</span><span class="plain">)</span>
<span class="functiontext">Errors::fatal_with_file</span><span class="plain">(</span><span class="string">"can't write readme file"</span><span class="plain">, </span><span class="identifier">F</span><span class="plain">);</span>
<span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;file_open</span><span class="plain"> = </span><span class="constant">TRUE</span><span class="plain">;</span>
<span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;OUT</span><span class="plain"> = &amp;(</span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;the_file</span><span class="plain">);</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="functiontext">Readme::expand</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">, </span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">text</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="functiontext">Readme::expand</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">, </span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Readme::expand</span><span class="plain">(</span><span class="reserved">write_state</span><span class="plain"> *</span><span class="identifier">ws</span><span class="plain">, </span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">OUT</span><span class="plain">, </span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">text</span><span class="plain">, </span><span class="reserved">text_file_position</span><span class="plain"> *</span><span class="identifier">tfp</span><span class="plain">) {</span>
<span class="reserved">match_results</span><span class="plain"> </span><span class="identifier">mr</span><span class="plain"> = </span><span class="functiontext">Regexp::create_mr</span><span class="plain">();</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Regexp::match</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">, </span><span class="identifier">text</span><span class="plain">, </span><span class="identifier">L</span><span class="string">"(%c*?)@(%i+)(%c*)"</span><span class="plain">)) {</span>
<span class="functiontext">Readme::expand</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">, </span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">mr</span><span class="element">.exp</span><span class="plain">[0], </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="reserved">macro_tokens</span><span class="plain"> </span><span class="identifier">mt</span><span class="plain"> = </span><span class="functiontext">Readme::parse_token_list</span><span class="plain">(</span><span class="identifier">mr</span><span class="element">.exp</span><span class="plain">[2], </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="identifier">mt</span><span class="element">.down</span><span class="plain"> = </span><span class="identifier">mt_stack</span><span class="plain">;</span>
<span class="identifier">mt_stack</span><span class="plain"> = &amp;</span><span class="identifier">mt</span><span class="plain">;</span>
<span class="functiontext">Readme::command</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">, </span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">mr</span><span class="element">.exp</span><span class="plain">[1], </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="identifier">mt_stack</span><span class="plain"> = </span><span class="identifier">mt</span><span class="element">.down</span><span class="plain">;</span>
<span class="functiontext">Readme::expand</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">, </span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">mr</span><span class="element">.exp</span><span class="plain">[2], </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"%S"</span><span class="plain">, </span><span class="identifier">text</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Readme::write_line is used in <a href="#SP1">&#167;1</a>.</p>
<p class="endnote">The function Readme::expand is used in <a href="#SP4">&#167;4</a>.</p>
<p class="inwebparagraph"><a id="SP3"></a><b>&#167;3. </b></p>
<pre class="display">
<span class="reserved">macro_tokens</span><span class="plain"> </span><span class="functiontext">Readme::parse_token_list</span><span class="plain">(</span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">chunk</span><span class="plain">, </span><span class="reserved">text_file_position</span><span class="plain"> *</span><span class="identifier">tfp</span><span class="plain">) {</span>
<span class="reserved">macro_tokens</span><span class="plain"> </span><span class="identifier">mt</span><span class="plain">;</span>
<span class="identifier">mt</span><span class="element">.no_pars</span><span class="plain"> = 0;</span>
<span class="identifier">mt</span><span class="element">.down</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="identifier">mt</span><span class="element">.bound_to</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Str::get_first_char</span><span class="plain">(</span><span class="identifier">chunk</span><span class="plain">) == </span><span class="character">'('</span><span class="plain">) {</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">x</span><span class="plain"> = 1, </span><span class="identifier">bl</span><span class="plain"> = 1, </span><span class="identifier">from</span><span class="plain"> = 1, </span><span class="identifier">quoted</span><span class="plain"> = </span><span class="constant">FALSE</span><span class="plain">;</span>
<span class="reserved">while</span><span class="plain"> ((</span><span class="identifier">bl</span><span class="plain"> &gt; 0) &amp;&amp; (</span><span class="functiontext">Str::get_at</span><span class="plain">(</span><span class="identifier">chunk</span><span class="plain">, </span><span class="identifier">x</span><span class="plain">) != 0)) {</span>
<span class="identifier">wchar_t</span><span class="plain"> </span><span class="identifier">c</span><span class="plain"> = </span><span class="functiontext">Str::get_at</span><span class="plain">(</span><span class="identifier">chunk</span><span class="plain">, </span><span class="identifier">x</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">c</span><span class="plain"> == </span><span class="character">'\</span><span class="plain">'</span><span class="character">'</span><span class="plain">) {</span>
<span class="identifier">quoted</span><span class="plain"> = </span><span class="identifier">quoted</span><span class="plain">?</span><span class="constant">FALSE</span><span class="plain">:</span><span class="constant">TRUE</span><span class="plain">;</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">quoted</span><span class="plain"> == </span><span class="constant">FALSE</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">c</span><span class="plain"> == </span><span class="character">'('</span><span class="plain">) </span><span class="identifier">bl</span><span class="plain">++;</span>
<span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">c</span><span class="plain"> == </span><span class="character">')'</span><span class="plain">) {</span>
<span class="identifier">bl</span><span class="plain">--;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">bl</span><span class="plain"> == 0) </span>&lt;<span class="cwebmacro">Recognise token</span> <span class="cwebmacronumber">3.1</span>&gt;<span class="plain">;</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> </span><span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">c</span><span class="plain"> == </span><span class="character">','</span><span class="plain">) &amp;&amp; (</span><span class="identifier">bl</span><span class="plain"> == 1)) </span>&lt;<span class="cwebmacro">Recognise token</span> <span class="cwebmacronumber">3.1</span>&gt;<span class="plain">;</span>
<span class="plain">}</span>
<span class="identifier">x</span><span class="plain">++;</span>
<span class="plain">}</span>
<span class="functiontext">Str::delete_n_characters</span><span class="plain">(</span><span class="identifier">chunk</span><span class="plain">, </span><span class="identifier">x</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">mt</span><span class="plain">;</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Readme::parse_token_list is used in <a href="#SP2">&#167;2</a>.</p>
<p class="inwebparagraph"><a id="SP3_1"></a><b>&#167;3.1. </b><code class="display">
&lt;<span class="cwebmacrodefn">Recognise token</span> <span class="cwebmacronumber">3.1</span>&gt; =
</code></p>
<pre class="displaydefn">
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">n</span><span class="plain"> = </span><span class="identifier">mt</span><span class="element">.no_pars</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">n</span><span class="plain"> &gt;= 8) </span><span class="functiontext">Errors::in_text_file</span><span class="plain">(</span><span class="string">"too many parameters"</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">mt</span><span class="element">.pars</span><span class="plain">[</span><span class="identifier">n</span><span class="plain">] = </span><span class="functiontext">Str::new</span><span class="plain">();</span>
<span class="reserved">for</span><span class="plain"> (</span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">j</span><span class="plain">=</span><span class="identifier">from</span><span class="plain">; </span><span class="identifier">j</span><span class="plain">&lt;</span><span class="identifier">x</span><span class="plain">; </span><span class="identifier">j</span><span class="plain">++) </span><span class="identifier">PUT_TO</span><span class="plain">(</span><span class="identifier">mt</span><span class="element">.pars</span><span class="plain">[</span><span class="identifier">n</span><span class="plain">], </span><span class="functiontext">Str::get_at</span><span class="plain">(</span><span class="identifier">chunk</span><span class="plain">, </span><span class="identifier">j</span><span class="plain">));</span>
<span class="functiontext">Str::trim_white_space</span><span class="plain">(</span><span class="identifier">mt</span><span class="element">.pars</span><span class="plain">[</span><span class="identifier">n</span><span class="plain">]);</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="functiontext">Str::get_first_char</span><span class="plain">(</span><span class="identifier">mt</span><span class="element">.pars</span><span class="plain">[</span><span class="identifier">n</span><span class="plain">]) == </span><span class="character">'\</span><span class="plain">'</span><span class="character">'</span><span class="plain">) &amp;&amp; (</span><span class="functiontext">Str::get_last_char</span><span class="plain">(</span><span class="identifier">mt</span><span class="element">.pars</span><span class="plain">[</span><span class="identifier">n</span><span class="plain">]) == </span><span class="character">'\</span><span class="plain">'</span><span class="character">'</span><span class="plain">)) {</span>
<span class="functiontext">Str::delete_first_character</span><span class="plain">(</span><span class="identifier">mt</span><span class="element">.pars</span><span class="plain">[</span><span class="identifier">n</span><span class="plain">]);</span>
<span class="functiontext">Str::delete_last_character</span><span class="plain">(</span><span class="identifier">mt</span><span class="element">.pars</span><span class="plain">[</span><span class="identifier">n</span><span class="plain">]);</span>
<span class="plain">}</span>
<span class="identifier">mt</span><span class="element">.no_pars</span><span class="plain">++;</span>
<span class="plain">}</span>
<span class="identifier">from</span><span class="plain"> = </span><span class="identifier">x</span><span class="plain">+1;</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">This code is used in <a href="#SP3">&#167;3</a> (twice).</p>
<p class="inwebparagraph"><a id="SP4"></a><b>&#167;4. </b></p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Readme::command</span><span class="plain">(</span><span class="reserved">write_state</span><span class="plain"> *</span><span class="identifier">ws</span><span class="plain">, </span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">OUT</span><span class="plain">, </span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">command</span><span class="plain">, </span><span class="reserved">text_file_position</span><span class="plain"> *</span><span class="identifier">tfp</span><span class="plain">) {</span>
<span class="reserved">match_results</span><span class="plain"> </span><span class="identifier">mr</span><span class="plain"> = </span><span class="functiontext">Regexp::create_mr</span><span class="plain">();</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Regexp::match</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">, </span><span class="identifier">command</span><span class="plain">, </span><span class="identifier">L</span><span class="string">"version"</span><span class="plain">)) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">mt_stack</span><span class="plain">-</span><span class="element">&gt;no_pars</span><span class="plain"> != 1) </span><span class="functiontext">Errors::in_text_file</span><span class="plain">(</span><span class="string">"@version takes 1 parameter"</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">program</span><span class="plain">);</span>
<span class="functiontext">Readme::expand</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">, </span><span class="identifier">program</span><span class="plain">, </span><span class="identifier">mt_stack</span><span class="plain">-</span><span class="element">&gt;pars</span><span class="plain">[0], </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="reserved">project</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain"> = </span><span class="functiontext">Inversion::read</span><span class="plain">(</span><span class="identifier">program</span><span class="plain">, </span><span class="constant">TRUE</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">program</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;current_version</span><span class="plain">) {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"version"</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Str::len</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;current_version</span><span class="plain">-</span><span class="element">&gt;number</span><span class="plain">) &gt; 0)</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">" %S"</span><span class="plain">, </span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;current_version</span><span class="plain">-</span><span class="element">&gt;number</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Str::len</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;current_version</span><span class="plain">-</span><span class="element">&gt;name</span><span class="plain">) &gt; 0)</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">" '%S'"</span><span class="plain">, </span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;current_version</span><span class="plain">-</span><span class="element">&gt;name</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Str::ne</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;current_version</span><span class="plain">-</span><span class="element">&gt;build_code</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"9Z99"</span><span class="plain">))</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">" (build %S)"</span><span class="plain">, </span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;current_version</span><span class="plain">-</span><span class="element">&gt;build_code</span><span class="plain">);</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"unversioned"</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Regexp::match</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">, </span><span class="identifier">command</span><span class="plain">, </span><span class="identifier">L</span><span class="string">"purpose"</span><span class="plain">)) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">mt_stack</span><span class="plain">-</span><span class="element">&gt;no_pars</span><span class="plain"> != 1) </span><span class="functiontext">Errors::in_text_file</span><span class="plain">(</span><span class="string">"@purpose takes 1 parameter"</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="reserved">else</span><span class="plain"> {</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">program</span><span class="plain">);</span>
<span class="functiontext">Readme::expand</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">, </span><span class="identifier">program</span><span class="plain">, </span><span class="identifier">mt_stack</span><span class="plain">-</span><span class="element">&gt;pars</span><span class="plain">[0], </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="reserved">project</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain"> = </span><span class="functiontext">Inversion::read</span><span class="plain">(</span><span class="identifier">program</span><span class="plain">, </span><span class="constant">TRUE</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">program</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"%S"</span><span class="plain">, </span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;purpose</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">macro_tokens</span><span class="plain"> *</span><span class="identifier">stack</span><span class="plain"> = </span><span class="identifier">mt_stack</span><span class="plain">;</span>
<span class="reserved">while</span><span class="plain"> (</span><span class="identifier">stack</span><span class="plain">) {</span>
<span class="reserved">macro</span><span class="plain"> *</span><span class="identifier">in</span><span class="plain"> = </span><span class="identifier">stack</span><span class="plain">-</span><span class="element">&gt;bound_to</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">in</span><span class="plain">)</span>
<span class="reserved">for</span><span class="plain"> (</span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">n</span><span class="plain"> = 0; </span><span class="identifier">n</span><span class="plain"> &lt; </span><span class="identifier">in</span><span class="plain">-</span><span class="element">&gt;tokens.no_pars</span><span class="plain">; </span><span class="identifier">n</span><span class="plain">++)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Str::eq</span><span class="plain">(</span><span class="identifier">in</span><span class="plain">-</span><span class="element">&gt;tokens.pars</span><span class="plain">[</span><span class="identifier">n</span><span class="plain">], </span><span class="identifier">command</span><span class="plain">)) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">n</span><span class="plain"> &lt; </span><span class="identifier">stack</span><span class="plain">-</span><span class="element">&gt;no_pars</span><span class="plain">) {</span>
<span class="functiontext">Readme::expand</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">, </span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">stack</span><span class="plain">-</span><span class="element">&gt;pars</span><span class="plain">[</span><span class="identifier">n</span><span class="plain">], </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="identifier">stack</span><span class="plain"> = </span><span class="identifier">stack</span><span class="plain">-</span><span class="element">&gt;down</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">macro</span><span class="plain"> *</span><span class="identifier">M</span><span class="plain">;</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">M</span><span class="plain">, </span><span class="reserved">macro</span><span class="plain">)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Str::eq</span><span class="plain">(</span><span class="identifier">M</span><span class="plain">-</span><span class="element">&gt;name</span><span class="plain">, </span><span class="identifier">command</span><span class="plain">)) {</span>
<span class="identifier">mt_stack</span><span class="plain">-</span><span class="element">&gt;bound_to</span><span class="plain"> = </span><span class="identifier">M</span><span class="plain">;</span>
<span class="functiontext">Readme::expand</span><span class="plain">(</span><span class="identifier">ws</span><span class="plain">, </span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">M</span><span class="plain">-</span><span class="element">&gt;content</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="functiontext">Errors::in_text_file</span><span class="plain">(</span><span class="string">"no such @-command"</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="constant">STDERR</span><span class="plain">, </span><span class="string">"(command is '%S')\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">command</span><span class="plain">);</span>
<span class="functiontext">Regexp::dispose_of</span><span class="plain">(&amp;</span><span class="identifier">mr</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Readme::command is used in <a href="#SP2">&#167;2</a>.</p>
<p class="inwebparagraph"><a id="SP5"></a><b>&#167;5. </b></p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Readme::close</span><span class="plain">(</span><span class="reserved">write_state</span><span class="plain"> *</span><span class="identifier">ws</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;file_open</span><span class="plain">) {</span>
<span class="identifier">ws</span><span class="plain">-</span><span class="element">&gt;file_open</span><span class="plain"> = </span><span class="constant">FALSE</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Readme::close is used in <a href="#SP1">&#167;1</a>, <a href="#SP2">&#167;2</a>.</p>
<hr class="tocbar">
<ul class="toc"><li><a href="2-vn.html">Back to 'Version Numbering'</a></li><li><i>(This section ends Chapter 2: Policies.)</i></li></ul><hr class="tocbar">
<!--End of weave-->
</body>
</html>
Reference in a new issue View git blame Copy permalink