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Graham Nelson 399a391436 Created building module
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>3/iibf</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 '3/iitf' 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#3">Chapter 3: Language Definition</a></li><li><b>Inter in Text Files</b></li></ul><p class="purpose">To read inter from a textual file.</p>
<ul class="toc"><li><a href="#SP1">&#167;1. Reading textual inter</a></li><li><a href="#SP2">&#167;2. Writing textual inter</a></li></ul><hr class="tocbar">
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. Reading textual inter. </b></p>
<pre class="display">
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">no_blank_lines_stacked</span><span class="plain"> = 0;</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Textual::read</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain">) {</span>
<span class="identifier">LOGIF</span><span class="plain">(</span><span class="identifier">INTER_FILE_READ</span><span class="plain">, </span><span class="string">"(Reading textual inter file %f)\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">F</span><span class="plain">);</span>
<span class="identifier">default_ptree</span><span class="plain"> = </span><span class="identifier">I</span><span class="plain">;</span>
<span class="identifier">no_blank_lines_stacked</span><span class="plain"> = 0;</span>
<span class="reserved">inter_bookmark</span><span class="plain"> </span><span class="identifier">IBM</span><span class="plain"> = </span><span class="functiontext">Inter::Bookmarks::at_start_of_this_repository</span><span class="plain">(</span><span class="identifier">I</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="functiontext">Inter::Errors::file_location</span><span class="plain">(</span><span class="identifier">NULL</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">);</span>
<span class="identifier">TextFiles::read</span><span class="plain">(</span><span class="identifier">F</span><span class="plain">, </span><span class="identifier">FALSE</span><span class="plain">, </span><span class="string">"can't open inter file"</span><span class="plain">, </span><span class="identifier">FALSE</span><span class="plain">, </span><span class="functiontext">Inter::Textual::read_line</span><span class="plain">, 0, &amp;</span><span class="identifier">IBM</span><span class="plain">);</span>
<span class="functiontext">Inter::SymbolsTables::resolve_forward_references</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">, &amp;</span><span class="identifier">eloc</span><span class="plain">);</span>
<span class="identifier">default_ptree</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="functiontext">Inter::Tree::traverse</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">, </span><span class="functiontext">Inter::Textual::lint_visitor</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">, -</span><span class="constant">PACKAGE_IST</span><span class="plain">);</span>
<span class="identifier">Primitives::scan_tree</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Textual::lint_visitor</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</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">void</span><span class="plain"> *</span><span class="identifier">state</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_children_inner</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="functiontext">Inter::Errors::issue</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="functiontext">Inter::Textual::new_symbol</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_symbols_table</span><span class="plain"> *</span><span class="identifier">T</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">name</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="identifier">NULL</span><span class="plain">;</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">symb</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::symbol_from_name</span><span class="plain">(</span><span class="identifier">T</span><span class="plain">, </span><span class="identifier">name</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">symb</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Inter::Symbols::is_predeclared</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">)) {</span>
<span class="functiontext">Inter::Symbols::undefine</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">symb</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::Errors::quoted</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"symbol already exists"</span><span class="plain">, </span><span class="identifier">name</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">NULL</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="functiontext">Inter::SymbolsTables::symbol_from_name_creating</span><span class="plain">(</span><span class="identifier">T</span><span class="plain">, </span><span class="identifier">name</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="functiontext">Inter::Textual::find_symbol</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</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_symbols_table</span><span class="plain"> *</span><span class="identifier">T</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">name</span><span class="plain">, </span><span class="constant">inter_t</span><span class="plain"> </span><span class="identifier">construct</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="identifier">NULL</span><span class="plain">;</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">symb</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::symbol_from_name</span><span class="plain">(</span><span class="identifier">T</span><span class="plain">, </span><span class="identifier">name</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">symb</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::Errors::quoted</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"no such symbol"</span><span class="plain">, </span><span class="identifier">name</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">NULL</span><span class="plain">; }</span>
<span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">D</span><span class="plain"> = </span><span class="functiontext">Inter::Symbols::definition</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Inter::Symbols::is_extern</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">)) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">symb</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="functiontext">Inter::Symbols::is_predeclared</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">)) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">symb</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">D</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::Errors::quoted</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"undefined symbol"</span><span class="plain">, </span><span class="identifier">name</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">NULL</span><span class="plain">; }</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">D</span><span class="plain">-</span><span class="element">&gt;W.data</span><span class="plain">[</span><span class="constant">ID_IFLD</span><span class="plain">] != </span><span class="identifier">construct</span><span class="plain">) &amp;&amp; (</span><span class="functiontext">Inter::Symbols::is_predeclared</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">)) {</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">"symbol of wrong type"</span><span class="plain">, </span><span class="identifier">name</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">NULL</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">symb</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="functiontext">Inter::Textual::find_undefined_symbol</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_error_location</span><span class="plain"> *</span><span class="identifier">eloc</span><span class="plain">, </span><span class="reserved">inter_symbols_table</span><span class="plain"> *</span><span class="identifier">T</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">name</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="identifier">NULL</span><span class="plain">;</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">symb</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::symbol_from_name</span><span class="plain">(</span><span class="identifier">T</span><span class="plain">, </span><span class="identifier">name</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">symb</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::Errors::quoted</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"no such symbol"</span><span class="plain">, </span><span class="identifier">name</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">NULL</span><span class="plain">; }</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="functiontext">Inter::Symbols::is_defined</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">)) &amp;&amp;</span>
<span class="plain">(</span><span class="functiontext">Inter::Symbols::is_predeclared</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">) &amp;&amp;</span>
<span class="plain">(</span><span class="functiontext">Inter::Symbols::is_predeclared_local</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">)) {</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">STDERR</span><span class="plain">, </span><span class="string">"Ho! %S\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">symb</span><span class="plain">-</span><span class="element">&gt;symbol_name</span><span class="plain">);</span>
<span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">D</span><span class="plain"> = </span><span class="functiontext">Inter::Symbols::definition</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">);</span>
<span class="functiontext">Inter::Defn::write_construct_text</span><span class="plain">(</span><span class="identifier">STDERR</span><span class="plain">, </span><span class="identifier">D</span><span class="plain">);</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">"symbol already defined"</span><span class="plain">, </span><span class="identifier">name</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">NULL</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">symb</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="functiontext">Inter::Textual::find_KOI</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_symbols_table</span><span class="plain"> *</span><span class="identifier">T</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">name</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="identifier">NULL</span><span class="plain">;</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">symb</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::symbol_from_name</span><span class="plain">(</span><span class="identifier">T</span><span class="plain">, </span><span class="identifier">name</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">symb</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::Errors::quoted</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"no such symbol"</span><span class="plain">, </span><span class="identifier">name</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">NULL</span><span class="plain">; }</span>
<span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">D</span><span class="plain"> = </span><span class="functiontext">Inter::Symbols::definition</span><span class="plain">(</span><span class="identifier">symb</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">D</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::Errors::quoted</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"undefined symbol"</span><span class="plain">, </span><span class="identifier">name</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">NULL</span><span class="plain">; }</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">D</span><span class="plain">-</span><span class="element">&gt;W.data</span><span class="plain">[</span><span class="constant">ID_IFLD</span><span class="plain">] != </span><span class="constant">KIND_IST</span><span class="plain">) &amp;&amp;</span>
<span class="plain">(</span><span class="identifier">D</span><span class="plain">-</span><span class="element">&gt;W.data</span><span class="plain">[</span><span class="constant">ID_IFLD</span><span class="plain">] != </span><span class="constant">INSTANCE_IST</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">"symbol of wrong type"</span><span class="plain">, </span><span class="identifier">name</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">NULL</span><span class="plain">; }</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">symb</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_data_type</span><span class="plain"> *</span><span class="functiontext">Inter::Textual::data_type</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="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">name</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_data_type</span><span class="plain"> *</span><span class="identifier">idt</span><span class="plain"> = </span><span class="functiontext">Inter::Types::find_by_name</span><span class="plain">(</span><span class="identifier">name</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">idt</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::Errors::quoted</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"no such data type"</span><span class="plain">, </span><span class="identifier">name</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">idt</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Textual::read_line</span><span class="plain">(</span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">line</span><span class="plain">, </span><span class="identifier">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">inter_bookmark</span><span class="plain"> *</span><span class="identifier">IBM</span><span class="plain"> = (</span><span class="reserved">inter_bookmark</span><span class="plain"> *) </span><span class="identifier">state</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="functiontext">Inter::Errors::file_location</span><span class="plain">(</span><span class="identifier">line</span><span class="plain">, </span><span class="identifier">tfp</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Str::len</span><span class="plain">(</span><span class="identifier">line</span><span class="plain">) == 0) { </span><span class="identifier">no_blank_lines_stacked</span><span class="plain">++; </span><span class="reserved">return</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">i</span><span class="plain">=0; </span><span class="identifier">i</span><span class="plain">&lt;</span><span class="identifier">no_blank_lines_stacked</span><span class="plain">; </span><span class="identifier">i</span><span class="plain">++) {</span>
<span class="reserved">inter_error_location</span><span class="plain"> </span><span class="identifier">b_eloc</span><span class="plain"> = </span><span class="functiontext">Inter::Errors::file_location</span><span class="plain">(</span><span class="identifier">I</span><span class="string">""</span><span class="plain">, </span><span class="identifier">tfp</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::read_construct_text</span><span class="plain">(</span><span class="identifier">I</span><span class="string">""</span><span class="plain">, &amp;</span><span class="identifier">b_eloc</span><span class="plain">, </span><span class="identifier">IBM</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="functiontext">Inter::Errors::issue</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">no_blank_lines_stacked</span><span class="plain"> = 0;</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::read_construct_text</span><span class="plain">(</span><span class="identifier">line</span><span class="plain">, &amp;</span><span class="identifier">eloc</span><span class="plain">, </span><span class="identifier">IBM</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="functiontext">Inter::Errors::issue</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Inter::Textual::read appears nowhere else.</p>
<p class="endnote">The function Inter::Textual::lint_visitor appears nowhere else.</p>
<p class="endnote">The function Inter::Textual::new_symbol is used in 4/tmc (<a href="4-tmc.html#SP2">&#167;2</a>), 4/tsc (<a href="4-tsc.html#SP1">&#167;1</a>), 4/tpc (<a href="4-tpc.html#SP2">&#167;2</a>), 4/tpc2 (<a href="4-tpc2.html#SP2">&#167;2</a>), 4/tkc (<a href="4-tkc.html#SP2">&#167;2</a>), 4/tvc2 (<a href="4-tvc2.html#SP2">&#167;2</a>), 4/tcc2 (<a href="4-tcc2.html#SP2">&#167;2</a>), 4/trc (<a href="4-trc.html#SP2">&#167;2</a>), 4/tic (<a href="4-tic.html#SP2">&#167;2</a>), 4/tpc4 (<a href="4-tpc4.html#SP2">&#167;2</a>), 4/tpc6 (<a href="4-tpc6.html#SP2">&#167;2</a>), 4/tpc7 (<a href="4-tpc7.html#SP2">&#167;2</a>).</p>
<p class="endnote">The function Inter::Textual::find_symbol is used in 3/idt (<a href="3-idt.html#SP3">&#167;3</a>), 4/tpc3 (<a href="4-tpc3.html#SP2">&#167;2</a>), 4/tkc (<a href="4-tkc.html#SP2">&#167;2</a>), 4/tdc (<a href="4-tdc.html#SP2">&#167;2</a>), 4/tvc2 (<a href="4-tvc2.html#SP2">&#167;2</a>), 4/tcc2 (<a href="4-tcc2.html#SP2">&#167;2</a>), 4/trc (<a href="4-trc.html#SP2">&#167;2</a>), 4/tic (<a href="4-tic.html#SP2">&#167;2</a>), 4/tpc4 (<a href="4-tpc4.html#SP2">&#167;2</a>), 4/tpc5 (<a href="4-tpc5.html#SP2">&#167;2</a>), 4/tpc6 (<a href="4-tpc6.html#SP2">&#167;2</a>), 5/tlc2 (<a href="5-tlc2.html#SP2">&#167;2</a>), 5/trc (<a href="5-trc.html#SP2">&#167;2</a>), 5/tvc (<a href="5-tvc.html#SP2">&#167;2</a>), 5/tcc2 (<a href="5-tcc2.html#SP2">&#167;2</a>).</p>
<p class="endnote">The function Inter::Textual::find_undefined_symbol is used in 5/tlc2 (<a href="5-tlc2.html#SP2">&#167;2</a>).</p>
<p class="endnote">The function Inter::Textual::find_KOI is used in 4/tpc5 (<a href="4-tpc5.html#SP2">&#167;2</a>), 4/tpc6 (<a href="4-tpc6.html#SP2">&#167;2</a>).</p>
<p class="endnote">The function Inter::Textual::data_type is used in 4/tkc (<a href="4-tkc.html#SP2">&#167;2</a>).</p>
<p class="endnote">The function Inter::Textual::read_line appears nowhere else.</p>
<p class="inwebparagraph"><a id="SP2"></a><b>&#167;2. Writing textual inter. </b></p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Textual::writer</span><span class="plain">(</span><span class="identifier">OUTPUT_STREAM</span><span class="plain">, </span><span class="reserved">char</span><span class="plain"> *</span><span class="identifier">format_string</span><span class="plain">, </span><span class="reserved">void</span><span class="plain"> *</span><span class="identifier">vI</span><span class="plain">) {</span>
<span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain"> = (</span><span class="reserved">inter_tree</span><span class="plain"> *) </span><span class="identifier">vI</span><span class="plain">;</span>
<span class="functiontext">Inter::Textual::write</span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">, 1);</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">textual_write_state</span><span class="plain"> {</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">to</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> (*</span><span class="identifier">filter</span><span class="plain">)(</span><span class="reserved">inter_tree_node</span><span class="plain">, </span><span class="reserved">int</span><span class="plain">);</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">pass</span><span class="plain">;</span>
<span class="plain">} </span><span class="reserved">textual_write_state</span><span class="plain">;</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Textual::write</span><span class="plain">(</span><span class="identifier">OUTPUT_STREAM</span><span class="plain">, </span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> (*</span><span class="identifier">filter</span><span class="plain">)(</span><span class="reserved">inter_tree_node</span><span class="plain">, </span><span class="reserved">int</span><span class="plain">), </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">pass</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">I</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) { </span><span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&lt;no-inter&gt;\</span><span class="plain">n</span><span class="string">"</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">; }</span>
<span class="reserved">textual_write_state</span><span class="plain"> </span><span class="identifier">tws</span><span class="plain">;</span>
<span class="identifier">tws</span><span class="element">.to</span><span class="plain"> = </span><span class="identifier">OUT</span><span class="plain">;</span>
<span class="identifier">tws</span><span class="element">.filter</span><span class="plain"> = </span><span class="identifier">filter</span><span class="plain">;</span>
<span class="identifier">tws</span><span class="element">.pass</span><span class="plain"> = </span><span class="identifier">pass</span><span class="plain">;</span>
<span class="functiontext">Inter::Tree::traverse_root_only</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">, </span><span class="functiontext">Inter::Textual::visitor</span><span class="plain">, &amp;</span><span class="identifier">tws</span><span class="plain">, -</span><span class="constant">PACKAGE_IST</span><span class="plain">);</span>
<span class="functiontext">Inter::Tree::traverse</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">, </span><span class="functiontext">Inter::Textual::visitor</span><span class="plain">, &amp;</span><span class="identifier">tws</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">, 0);</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Textual::visitor</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</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">void</span><span class="plain"> *</span><span class="identifier">state</span><span class="plain">) {</span>
<span class="reserved">textual_write_state</span><span class="plain"> *</span><span class="identifier">tws</span><span class="plain"> = (</span><span class="reserved">textual_write_state</span><span class="plain"> *) </span><span class="identifier">state</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">tws</span><span class="plain">-</span><span class="element">&gt;filter</span><span class="plain">) &amp;&amp; ((*(</span><span class="identifier">tws</span><span class="plain">-</span><span class="element">&gt;filter</span><span class="plain">))(*</span><span class="identifier">P</span><span class="plain">, </span><span class="identifier">tws</span><span class="plain">-</span><span class="element">&gt;pass</span><span class="plain">) == </span><span class="identifier">FALSE</span><span class="plain">)) </span><span class="reserved">return</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::write_construct_text</span><span class="plain">(</span><span class="identifier">tws</span><span class="plain">-</span><span class="element">&gt;to</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="functiontext">Inter::Errors::issue</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">);</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Inter::Textual::writer is used in 1/im (<a href="1-im.html#SP3_3">&#167;3.3</a>).</p>
<p class="endnote">The function Inter::Textual::write appears nowhere else.</p>
<p class="endnote">The function Inter::Textual::visitor appears nowhere else.</p>
<p class="endnote">The structure textual_write_state is private to this section.</p>
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