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<h1>Module <a href="type_Stdlib.Genlex.html">Stdlib.Genlex</a></h1>
<pre><span id="MODULEGenlex"><span class="keyword">module</span> Genlex</span>: <code class="type"><a href="Genlex.html">Genlex</a></code></pre><hr width="100%">
<pre><code><span id="TYPEtoken"><span class="keyword">type</span> <code class="type"></code>token</span> = </code></pre><table class="typetable">
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<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTtoken.Kwd"><span class="constructor">Kwd</span></span> <span class="keyword">of</span> <code class="type">string</code></code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTtoken.Ident"><span class="constructor">Ident</span></span> <span class="keyword">of</span> <code class="type">string</code></code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTtoken.Int"><span class="constructor">Int</span></span> <span class="keyword">of</span> <code class="type">int</code></code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTtoken.Float"><span class="constructor">Float</span></span> <span class="keyword">of</span> <code class="type">float</code></code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTtoken.String"><span class="constructor">String</span></span> <span class="keyword">of</span> <code class="type">string</code></code></td>
</tr>
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<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTtoken.Char"><span class="constructor">Char</span></span> <span class="keyword">of</span> <code class="type">char</code></code></td>
</tr></table>
<div class="info ">
<div class="info-desc">
<p>The type of tokens. The lexical classes are: <code class="code"><span class="constructor">Int</span></code> and <code class="code"><span class="constructor">Float</span></code>
for integer and floating-point numbers; <code class="code"><span class="constructor">String</span></code> for
string literals, enclosed in double quotes; <code class="code"><span class="constructor">Char</span></code> for
character literals, enclosed in single quotes; <code class="code"><span class="constructor">Ident</span></code> for
identifiers (either sequences of letters, digits, underscores
and quotes, or sequences of 'operator characters' such as
<code class="code">+</code>, <code class="code">*</code>, etc); and <code class="code"><span class="constructor">Kwd</span></code> for keywords (either identifiers or
single 'special characters' such as <code class="code">(</code>, <code class="code">}</code>, etc).</p>
</div>
</div>
<pre><span id="VALmake_lexer"><span class="keyword">val</span> make_lexer</span> : <code class="type">string list -> char <a href="Stream.html#TYPEt">Stream.t</a> -> <a href="Genlex.html#TYPEtoken">token</a> <a href="Stream.html#TYPEt">Stream.t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Construct the lexer function. The first argument is the list of
keywords. An identifier <code class="code">s</code> is returned as <code class="code"><span class="constructor">Kwd</span> s</code> if <code class="code">s</code>
belongs to this list, and as <code class="code"><span class="constructor">Ident</span> s</code> otherwise.
A special character <code class="code">s</code> is returned as <code class="code"><span class="constructor">Kwd</span> s</code> if <code class="code">s</code>
belongs to this list, and cause a lexical error (exception
<a href="Stream.html#EXCEPTIONError"><code class="code"><span class="constructor">Stream</span>.<span class="constructor">Error</span></code></a> with the offending lexeme as its parameter) otherwise.
Blanks and newlines are skipped. Comments delimited by <code class="code">(*</code> and <code class="code">*)</code>
are skipped as well, and can be nested. A <a href="Stream.html#EXCEPTIONFailure"><code class="code"><span class="constructor">Stream</span>.<span class="constructor">Failure</span></code></a> exception
is raised if end of stream is unexpectedly reached.</p>
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