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Graham Nelson 23bc2e2dcf Finally solved template assimilation
2019-09-07 20:43:31 +01:00

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<!--Weave of '4/tpc' generated by 7-->
<ul class="crumbs"><li><a href="../webs.html">&#9733;</a></li><li><a href="index.html">inter</a></li><li><a href="index.html#4">Chapter 4: Void Constructs</a></li><li><b>The Pragma Construct</b></li></ul><p class="purpose">Defining the pragma construct.</p>
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. </b></p>
<pre class="definitions">
<span class="definitionkeyword">enum</span> <span class="constant">PRAGMA_IST</span>
</pre>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Pragma::define</span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
<span class="reserved">inter_construct</span><span class="plain"> *</span><span class="identifier">IC</span><span class="plain"> = </span><span class="functiontext">Inter::Defn::create_construct</span><span class="plain">(</span>
<span class="constant">PRAGMA_IST</span><span class="plain">,</span>
<span class="identifier">L</span><span class="string">"pragma (%i+) \</span><span class="plain">"</span><span class="string">(%c+)\</span><span class="plain">"</span><span class="string">"</span><span class="plain">,</span>
<span class="identifier">I</span><span class="string">"pragma"</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"pragmas"</span><span class="plain">); </span> <span class="comment">pragmae? pragmata?</span>
<span class="identifier">IC</span><span class="plain">-</span><span class="element">&gt;usage_permissions</span><span class="plain"> = </span><span class="constant">OUTSIDE_OF_PACKAGES</span><span class="plain">;</span>
<span class="identifier">METHOD_ADD</span><span class="plain">(</span><span class="identifier">IC</span><span class="plain">, </span><span class="constant">CONSTRUCT_READ_MTID</span><span class="plain">, </span><span class="functiontext">Inter::Pragma::read</span><span class="plain">);</span>
<span class="identifier">METHOD_ADD</span><span class="plain">(</span><span class="identifier">IC</span><span class="plain">, </span><span class="constant">CONSTRUCT_TRANSPOSE_MTID</span><span class="plain">, </span><span class="functiontext">Inter::Pragma::transpose</span><span class="plain">);</span>
<span class="identifier">METHOD_ADD</span><span class="plain">(</span><span class="identifier">IC</span><span class="plain">, </span><span class="constant">CONSTRUCT_VERIFY_MTID</span><span class="plain">, </span><span class="functiontext">Inter::Pragma::verify</span><span class="plain">);</span>
<span class="identifier">METHOD_ADD</span><span class="plain">(</span><span class="identifier">IC</span><span class="plain">, </span><span class="constant">CONSTRUCT_WRITE_MTID</span><span class="plain">, </span><span class="functiontext">Inter::Pragma::write</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Inter::Pragma::define is used in 3/dfn (<a href="3-dfn.html#SP3">&#167;3</a>).</p>
<p class="inwebparagraph"><a id="SP2"></a><b>&#167;2. </b></p>
<pre class="definitions">
<span class="definitionkeyword">define</span> <span class="constant">TARGET_PRAGMA_IFLD</span><span class="plain"> 2</span>
<span class="definitionkeyword">define</span> <span class="constant">TEXT_PRAGMA_IFLD</span><span class="plain"> 3</span>
<span class="definitionkeyword">define</span> <span class="constant">EXTENT_PRAGMA_IFR</span><span class="plain"> 4</span>
</pre>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Pragma::read</span><span class="plain">(</span><span class="reserved">inter_construct</span><span class="plain"> *</span><span class="identifier">IC</span><span class="plain">, </span><span class="reserved">inter_bookmark</span><span class="plain"> *</span><span class="identifier">IBM</span><span class="plain">, </span><span class="reserved">inter_line_parse</span><span class="plain"> *</span><span class="identifier">ilp</span><span class="plain">, </span><span class="reserved">inter_error_location</span><span class="plain"> *</span><span class="identifier">eloc</span><span class="plain">, </span><span class="reserved">inter_error_message</span><span class="plain"> **</span><span class="identifier">E</span><span class="plain">) {</span>
<span class="plain">*</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Inter::Defn::vet_level</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">, </span><span class="constant">PRAGMA_IST</span><span class="plain">, </span><span class="identifier">ilp</span><span class="plain">-</span><span class="element">&gt;indent_level</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (*</span><span class="identifier">E</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Inter::Annotations::exist</span><span class="plain">(&amp;(</span><span class="identifier">ilp</span><span class="plain">-</span><span class="element">&gt;set</span><span class="plain">))) { *</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Inter::Errors::plain</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"__annotations are not allowed"</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">; }</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">target_name</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::symbol_from_name</span><span class="plain">(</span><span class="functiontext">Inter::Bookmarks::scope</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">), </span><span class="identifier">ilp</span><span class="plain">-</span><span class="element">&gt;mr</span><span class="plain">.</span><span class="identifier">exp</span><span class="plain">[0]);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">target_name</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">)</span>
<span class="identifier">target_name</span><span class="plain"> = </span><span class="functiontext">Inter::Textual::new_symbol</span><span class="plain">(</span><span class="identifier">eloc</span><span class="plain">, </span><span class="functiontext">Inter::Bookmarks::scope</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">), </span><span class="identifier">ilp</span><span class="plain">-</span><span class="element">&gt;mr</span><span class="plain">.</span><span class="identifier">exp</span><span class="plain">[0], </span><span class="identifier">E</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (*</span><span class="identifier">E</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">S</span><span class="plain"> = </span><span class="identifier">ilp</span><span class="plain">-</span><span class="element">&gt;mr</span><span class="plain">.</span><span class="identifier">exp</span><span class="plain">[1];</span>
<span class="constant">inter_t</span><span class="plain"> </span><span class="identifier">ID</span><span class="plain"> = </span><span class="functiontext">Inter::Warehouse::create_text</span><span class="plain">(</span><span class="functiontext">Inter::Bookmarks::warehouse</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">), </span><span class="functiontext">Inter::Bookmarks::package</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">));</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">literal_mode</span><span class="plain"> = </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="identifier">LOOP_THROUGH_TEXT</span><span class="plain">(</span><span class="identifier">pos</span><span class="plain">, </span><span class="identifier">S</span><span class="plain">) {</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">c</span><span class="plain"> = (</span><span class="reserved">int</span><span class="plain">) </span><span class="identifier">Str::get</span><span class="plain">(</span><span class="identifier">pos</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">literal_mode</span><span class="plain"> == </span><span class="identifier">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="character">'</span><span class="plain">) { </span><span class="identifier">literal_mode</span><span class="plain"> = </span><span class="identifier">TRUE</span><span class="plain">; </span><span class="reserved">continue</span><span class="plain">; }</span>
<span class="plain">} </span><span class="reserved">else</span><span class="plain"> {</span>
<span class="reserved">switch</span><span class="plain"> (</span><span class="identifier">c</span><span class="plain">) {</span>
<span class="reserved">case</span><span class="plain"> </span><span class="character">'\</span><span class="plain">\</span><span class="character">'</span><span class="plain">: </span><span class="reserved">break</span><span class="plain">;</span>
<span class="reserved">case</span><span class="plain"> </span><span class="character">'"'</span><span class="plain">: </span><span class="reserved">break</span><span class="plain">;</span>
<span class="reserved">case</span><span class="plain"> </span><span class="character">'t'</span><span class="plain">: </span><span class="identifier">c</span><span class="plain"> = 9; </span><span class="reserved">break</span><span class="plain">;</span>
<span class="reserved">case</span><span class="plain"> </span><span class="character">'n'</span><span class="plain">: </span><span class="identifier">c</span><span class="plain"> = 10; </span><span class="reserved">break</span><span class="plain">;</span>
<span class="reserved">default</span><span class="plain">: { *</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Inter::Errors::plain</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"no such backslash escape"</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">; }</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Inter::Constant::char_acceptable</span><span class="plain">(</span><span class="identifier">c</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) { *</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Inter::Errors::quoted</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"bad character in text"</span><span class="plain">, </span><span class="identifier">S</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">; }</span>
<span class="identifier">PUT_TO</span><span class="plain">(</span><span class="functiontext">Inter::Warehouse::get_text</span><span class="plain">(</span><span class="functiontext">Inter::Bookmarks::warehouse</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">), </span><span class="identifier">ID</span><span class="plain">), </span><span class="identifier">c</span><span class="plain">);</span>
<span class="identifier">literal_mode</span><span class="plain"> = </span><span class="identifier">FALSE</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="plain">*</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Inter::Pragma::new</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">, </span><span class="identifier">target_name</span><span class="plain">, </span><span class="identifier">ID</span><span class="plain">, (</span><span class="constant">inter_t</span><span class="plain">) </span><span class="identifier">ilp</span><span class="plain">-</span><span class="element">&gt;indent_level</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="functiontext">Inter::Pragma::new</span><span class="plain">(</span><span class="reserved">inter_bookmark</span><span class="plain"> *</span><span class="identifier">IBM</span><span class="plain">, </span><span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">target_name</span><span class="plain">, </span><span class="constant">inter_t</span><span class="plain"> </span><span class="identifier">pragma_text</span><span class="plain">, </span><span class="constant">inter_t</span><span class="plain"> </span><span class="identifier">level</span><span class="plain">, </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">inter_error_location</span><span class="plain"> *</span><span class="identifier">eloc</span><span class="plain">) {</span>
<span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain"> = </span><span class="functiontext">Inter::Node::fill_2</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">, </span><span class="constant">PRAGMA_IST</span><span class="plain">, </span><span class="functiontext">Inter::SymbolsTables::id_from_IRS_and_symbol</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">, </span><span class="identifier">target_name</span><span class="plain">), </span><span class="identifier">pragma_text</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">, </span><span class="identifier">level</span><span class="plain">);</span>
<span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Inter::Defn::verify_construct</span><span class="plain">(</span><span class="functiontext">Inter::Bookmarks::package</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">), </span><span class="identifier">P</span><span class="plain">); </span><span class="reserved">if</span><span class="plain"> (</span><span class="identifier">E</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">E</span><span class="plain">;</span>
<span class="functiontext">Inter::Bookmarks::insert</span><span class="plain">(</span><span class="identifier">IBM</span><span class="plain">, </span><span class="identifier">P</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Pragma::transpose</span><span class="plain">(</span><span class="reserved">inter_construct</span><span class="plain"> *</span><span class="identifier">IC</span><span class="plain">, </span><span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain">, </span><span class="constant">inter_t</span><span class="plain"> *</span><span class="identifier">grid</span><span class="plain">, </span><span class="constant">inter_t</span><span class="plain"> </span><span class="identifier">grid_extent</span><span class="plain">, </span><span class="reserved">inter_error_message</span><span class="plain"> **</span><span class="identifier">E</span><span class="plain">) {</span>
<span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;W.data</span><span class="plain">[</span><span class="constant">TEXT_PRAGMA_IFLD</span><span class="plain">] = </span><span class="identifier">grid</span><span class="plain">[</span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;W.data</span><span class="plain">[</span><span class="constant">TEXT_PRAGMA_IFLD</span><span class="plain">]];</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Pragma::verify</span><span class="plain">(</span><span class="reserved">inter_construct</span><span class="plain"> *</span><span class="identifier">IC</span><span class="plain">, </span><span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain">, </span><span class="reserved">inter_package</span><span class="plain"> *</span><span class="identifier">owner</span><span class="plain">, </span><span class="reserved">inter_error_message</span><span class="plain"> **</span><span class="identifier">E</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;W.extent</span><span class="plain"> != </span><span class="constant">EXTENT_PRAGMA_IFR</span><span class="plain">) { *</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Inter::Node::error</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"extent wrong"</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">; }</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">target_name</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::symbol_from_frame_data</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="constant">TARGET_PRAGMA_IFLD</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">target_name</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) { *</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Inter::Node::error</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"no target name"</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">); </span><span class="reserved">return</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;W.data</span><span class="plain">[</span><span class="constant">TEXT_PRAGMA_IFLD</span><span class="plain">] == 0) { *</span><span class="identifier">E</span><span class="plain"> = </span><span class="functiontext">Inter::Node::error</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"no pragma text"</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">; }</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Pragma::write</span><span class="plain">(</span><span class="reserved">inter_construct</span><span class="plain"> *</span><span class="identifier">IC</span><span class="plain">, </span><span class="identifier">OUTPUT_STREAM</span><span class="plain">, </span><span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain">, </span><span class="reserved">inter_error_message</span><span class="plain"> **</span><span class="identifier">E</span><span class="plain">) {</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">target_name</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::symbol_from_frame_data</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="constant">TARGET_PRAGMA_IFLD</span><span class="plain">);</span>
<span class="constant">inter_t</span><span class="plain"> </span><span class="identifier">ID</span><span class="plain"> = </span><span class="identifier">P</span><span class="plain">-</span><span class="element">&gt;W.data</span><span class="plain">[</span><span class="constant">TEXT_PRAGMA_IFLD</span><span class="plain">];</span>
<span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">S</span><span class="plain"> = </span><span class="functiontext">Inter::Node::ID_to_text</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="identifier">ID</span><span class="plain">);</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"pragma %S \</span><span class="plain">"</span><span class="string">%S\</span><span class="plain">"</span><span class="string">"</span><span class="plain">, </span><span class="identifier">target_name</span><span class="plain">-</span><span class="element">&gt;symbol_name</span><span class="plain">, </span><span class="identifier">S</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Inter::Pragma::read is used in <a href="#SP1">&#167;1</a>.</p>
<p class="endnote">The function Inter::Pragma::new appears nowhere else.</p>
<p class="endnote">The function Inter::Pragma::transpose is used in <a href="#SP1">&#167;1</a>.</p>
<p class="endnote">The function Inter::Pragma::verify is used in <a href="#SP1">&#167;1</a>.</p>
<p class="endnote">The function Inter::Pragma::write is used in <a href="#SP1">&#167;1</a>.</p>
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