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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>FILE-ENABLE-SQL-READER-SYNTAX</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><link rel="home" href="index.html" title="CLSQL Users' Guide" /><link rel="up" href="ref-syntax.html" title="The Symbolic SQL Syntax" /><link rel="prev" href="restore-sql-reader-syntax-state.html" title="RESTORE-SQL-READER-SYNTAX-STATE" /><link rel="next" href="sql.html" title="SQL" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">FILE-ENABLE-SQL-READER-SYNTAX</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="restore-sql-reader-syntax-state.html">Prev</a> </td><th width="60%" align="center">The Symbolic SQL Syntax</th><td width="20%" align="right"> <a accesskey="n" href="sql.html">Next</a></td></tr></table><hr /></div><div class="refentry"><a id="file-enable-sql-reader-syntax"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>FILE-ENABLE-SQL-READER-SYNTAX —
Enable the square bracket reader syntax for the duration of the file.
<strong>Macro</strong></p></div><div class="refsect1"><a id="idp73212784"></a><h2>Syntax</h2><pre class="synopsis">
<code class="function">file-enable-sql-reader-syntax</code> => <span class="returnvalue"></span></pre></div><div class="refsect1"><a id="idp73215264"></a><h2>Arguments and Values</h2><p>None.</p></div><div class="refsect1"><a id="idp73216608"></a><h2>Description</h2><p>Uncoditionally enables the SQL reader syntax. Unlike <a class="link" href="enable-sql-reader-syntax.html" title="ENABLE-SQL-READER-SYNTAX">
<code class="function">enable-sql-reader-syntax</code></a> and <a class="link" href="disable-sql-reader-syntax.html" title="DISABLE-SQL-READER-SYNTAX">
<code class="function">disable-sql-reader-syntax</code></a> which try to keep track of whether
the syntax has been enabled or disabled and keep track of the old read-table for restoration this function just enables it unconditionally.
</p><p>Once enabled this way there is no corresponding disable function but instead relies on being used in a file context. The spec for <a class="ulink" href="http://www.lispworks.com/documentation/lw51/CLHS/Body/f_load.htm" target="_top">load</a> and <a class="ulink" href="http://www.lispworks.com/documentation/lw51/CLHS/Body/f_cmp_fi.htm" target="_top">compile-file</a> states that the *readtable* will be restored after processing the file.</p></div><div class="refsect1"><a id="idp73222768"></a><h2>Examples</h2><p>Intended to be used at the top of a file that contains sql reader syntax.</p><pre class="screen">
(in-package :my-package)
(clsql:file-enable-sql-reader-syntax)
...
;;functions that use the square bracket syntax.
</pre></div><div class="refsect1"><a id="idp73224912"></a><h2>Side Effects</h2><p>
Modifies the readtable for #\[ and #\]
</p></div><div class="refsect1"><a id="idp73226224"></a><h2>Affected by</h2><p>None.</p></div><div class="refsect1"><a id="idp73227568"></a><h2>Exceptional Situations</h2><p>
None.
</p></div><div class="refsect1"><a id="idp73228912"></a><h2>See Also</h2><table border="0" summary="Simple list" class="simplelist"><tr><td><a class="link" href="enable-sql-reader-syntax.html" title="ENABLE-SQL-READER-SYNTAX"><code class="function">enable-sql-reader-syntax</code></a></td></tr><tr><td><a class="link" href="disable-sql-reader-syntax.html" title="DISABLE-SQL-READER-SYNTAX"><code class="function">disable-sql-reader-syntax</code></a></td></tr><tr><td><a class="link" href="locally-enable-sql-reader-syntax.html" title="LOCALLY-ENABLE-SQL-READER-SYNTAX"><code class="function">locally-enable-sql-reader-syntax</code></a></td></tr><tr><td><a class="link" href="locally-disable-sql-reader-syntax.html" title="LOCALLY-DISABLE-SQL-READER-SYNTAX"><code class="function">locally-disable-sql-reader-syntax</code></a></td></tr></table></div><div class="refsect1"><a id="idp73235648"></a><h2>Notes</h2><p>
Unique to <span class="application"><span class="emphasis"><em>CLSQL</em></span></span>, not present in <span class="application">CommonSQL</span>.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="restore-sql-reader-syntax-state.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ref-syntax.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">RESTORE-SQL-READER-SYNTAX-STATE </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> SQL</td></tr></table></div></body></html>
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