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Previous: <a href="Commands.html#Commands" accesskey="p" rel="prev">Commands</a>, Up: <a href="Ratfor.html#Ratfor" accesskey="u" rel="up">Ratfor</a> [<a href="Parameter-index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-index.html#Concept-index" title="Index" rel="index">Index</a>]</p>
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<a name="Caveats-about-RATFOR"></a>
<h3 class="section">9.3 Caveats about <small>RATFOR</small></h3>
<a name="index-RATFOR_002c-caveats-about"></a>
<p>The version of <small>RATFOR</small> built into <small>FWEB</small> differs slightly from its <small>UNIX</small>
counterpart:
</p>
<blockquote>
<ol>
<li> Numeric statement labels must be followed by a colon; they should
be first on their line. (Use symbolic statement labels instead; see the
discussion of ‘<samp>#:0</samp>’ in <a href="Tokens.html#Tokens">Tokens</a>.)
</li><li> The quoting convention for characters and strings follows that
of C: Single-quote single characters, double-quote strings.
</li><li> In a <b>switch</b>, cases fall through to the next case unless
terminated by <b>break</b> (just as in C).
</li><li> The <b>do</b> statement must be terminated by a semicolon if
followed by a simple statement. (It’s unnecessary if followed by a left
brace that begins a compound statement.)
</li><li> Use <tt>&&</tt> and <tt>||</tt> for the logical AND and OR.
</li><li> Do not use an <b>end</b> statement at the very end of a <small>RATFOR</small> program
unit; it is added automatically by <small>FWEB</small> when the closing brace is sensed.
</li></ol>
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