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<img alt="Erlang logo" src="../../../../doc/erlang-logo.png"><br><small><a href="index.html">Reference Manual</a><br><a href="release_notes.html">Release Notes</a><br><a href="../pdf/parsetools-2.0.2.pdf">PDF</a><br><a href="../../../../doc/index.html">Top</a></small><p><strong>Parse Tools</strong><br><strong>Release Notes</strong><br><small>Version 2.0.2</small></p>
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<ul class="flipMenu" imagepath="../../../../doc/js/flipmenu"><li id="loadscrollpos" title="Parsetools Release Notes" expanded="true">Parsetools Release Notes<ul>
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<li title="Parsetools 2.0.2"><a href="notes.html#id2259919">Parsetools 2.0.2</a></li>
<li title="Parsetools 2.0.1"><a href="notes.html#id2259949">Parsetools 2.0.1</a></li>
<li title="Parsetools 2.0"><a href="notes.html#id2260006">Parsetools 2.0</a></li>
<li title="Parsetools 1.4.7"><a href="notes.html#id2260460">Parsetools 1.4.7</a></li>
<li title="Parsetools 1.4.6"><a href="notes.html#id2260491">Parsetools 1.4.6</a></li>
<li title="Parsetools 1.4.5"><a href="notes.html#id2260522">Parsetools 1.4.5</a></li>
<li title="Parsetools 1.4.4"><a href="notes.html#id2260557">Parsetools 1.4.4</a></li>
<li title="Parsetools 1.4.3"><a href="notes.html#id2260593">Parsetools 1.4.3</a></li>
<li title="Parsetools 1.4.2"><a href="notes.html#id2253951">Parsetools 1.4.2</a></li>
<li title="Parsetools 1.4.1.1"><a href="notes.html#id2254002">Parsetools 1.4.1.1</a></li>
<li title="Parsetools 1.4.1"><a href="notes.html#id2254035">Parsetools 1.4.1</a></li>
<li title="Parsetools 1.4"><a href="notes.html#id2254069">Parsetools 1.4</a></li>
<li title="Parsetools 1.3.2"><a href="notes.html#id2256921">Parsetools 1.3.2</a></li>
<li title="Parsetools 1.3.1"><a href="notes.html#id2256959">Parsetools 1.3.1</a></li>
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<h1>1 Parsetools Release Notes</h1>
<p>This document describes the changes made to the Parsetools application.</p>
<h3><a name="id2259919">1.1
Parsetools 2.0.2</a></h3>
<h4>Improvements and New Features</h4>
<ul>
<li>
<p>
Cleanups suggested by tidier and modernization of types
and specs.</p>
<p>
Own Id: OTP-8455</p>
</li>
</ul>
<h3><a name="id2259949">1.2
Parsetools 2.0.1</a></h3>
<h4>Improvements and New Features</h4>
<ul>
<li>
<p>Leex no longer uses the deprecated <span class="code">regexp</span>
module. (Thanks to Robert Virding.).</p>
<p>
Own Id: OTP-8231</p>
</li>
</ul>
<h4>Fixed Bugs and Malfunctions</h4>
<ul>
<li>
<p>A minor bug in <span class="code">leex(3)</span> has been fixed.</p>
<p>
Own Id: OTP-8197</p>
</li>
</ul>
<h3><a name="id2260006">1.3
Parsetools 2.0</a></h3>
<h4>Improvements and New Features</h4>
<ul>
<li>
<p>Leex, a lexical analyzer generator for Erlang,
has been added to Parsetools. This initial version
should be considered experimental; it is known
that there will be changes and additions.
(Thanks to Robert Virding.).</p>
<p>
Own Id: OTP-8013</p>
</li>
</ul>
<h4>Fixed Bugs and Malfunctions</h4>
<ul>
<li>
<p>The parsers generated by Yecc now report correct
error lines when possible.</p>
<p>
Own Id: OTP-7969</p>
</li>
</ul>
<h3><a name="id2260460">1.4
Parsetools 1.4.7</a></h3>
<h4>Fixed Bugs and Malfunctions</h4>
<ul>
<li>
<p>A bug in yeccpre.hrl introduced in R13A has been
fixed.</p>
<p>
Own Id: OTP-7945</p>
</li>
</ul>
<h3><a name="id2260491">1.5
Parsetools 1.4.6</a></h3>
<h4>Improvements and New Features</h4>
<ul>
<li>
<p>Updated file headers.</p>
<p>
Own Id: OTP-7798</p>
</li>
</ul>
<h3><a name="id2260522">1.6
Parsetools 1.4.5</a></h3>
<h4>Improvements and New Features</h4>
<ul>
<li>
<p>The <span class="code">yecc</span> grammar has been augmented with an
optional header section. (Thanks to Richard
Carlsson.)</p>
<p>
Own Id: OTP-7292</p>
</li>
</ul>
<h3><a name="id2260557">1.7
Parsetools 1.4.4</a></h3>
<h4>Improvements and New Features</h4>
<ul>
<li>
<p>The size of the code generated by Yecc has
been reduced. The code is also faster.</p>
<p>Macros can now be used in actions.</p>
<p>
Own Id: OTP-7224</p>
</li>
</ul>
<h3><a name="id2260593">1.8
Parsetools 1.4.3</a></h3>
<h4>Improvements and New Features</h4>
<ul>
<li>
<p><span class="code">tuple_size/1</span> and <span class="code">byte_size/1</span> have been
substituted for <span class="code">size/1</span>.</p>
<p>
Own Id: OTP-7009</p>
</li>
</ul>
<h3><a name="id2253951">1.9
Parsetools 1.4.2</a></h3>
<h4>Improvements and New Features</h4>
<ul>
<li>
<p>The size of the code generated by yecc has been
reduced. </p>
<p>A note regarding the <span class="code">includefile</span> option:
although yecc can cope with includefiles based on some
earlier <span class="code">yeccpre.hrl</span> it is recommended for
efficiency reasons to update includefiles as to follow
the pattern in the latest <span class="code">yeccpre.hrl</span>.</p>
<p>
Own Id: OTP-6851</p>
</li>
</ul>
<h3><a name="id2254002">1.10
Parsetools 1.4.1.1</a></h3>
<h4>Improvements and New Features</h4>
<ul>
<li>
<p>Minor Makefile changes.</p>
<p>Own Id: OTP-6689</p>
</li>
</ul>
<h3><a name="id2254035">1.11
Parsetools 1.4.1</a></h3>
<h4>Fixed Bugs and Malfunctions</h4>
<ul>
<li>
<p>A bug concerning precedence declarations of
non-terminals "one level up" has been fixed in yecc.</p>
<p>Own Id: OTP-6362</p>
</li>
</ul>
<h3><a name="id2254069">1.12
Parsetools 1.4</a></h3>
<h4>Improvements and Fixed Bugs</h4>
<p>Several modifications of Yecc have been made:</p>
<ul>
<li>
<p>The new functions <span class="code">file/1,2</span> take the
role of the old functions <span class="code">yecc/2,3,4</span>. The
latter functions are no longer documented but are
kept for backward compatibility.</p>
</li>
<li>
<p>More checks of the grammar file have been
implemented. Examples are warnings for unused
non-terminals and duplicated declarations.</p>
</li>
<li>
<p>Invalid pseudo variables are no longer
replaced by <span class="code">'$undefined'</span> but cause a failure.</p>
</li>
<li>
<p>Reserved words no longer need to be quoted
when used as terminals or non-terminals.</p>
</li>
<li>
<p>When compiling the generated parser file errors
and warnings concerning user code refer to
the grammar file, not the parser file.</p>
</li>
<li>
<p>Yecc emits a warning if there are conflicts
in the grammar. The new declaration <span class="code">Expect</span> can
be used to suppress this warning.</p>
</li>
<li>
<p>The new operator precedence declaration
<span class="code">Nonassoc</span> can be used to declare operators with
no associativity.</p>
</li>
<li>
<p>Precedence can be given to more than one operator
with one single operator precedence declaration.</p>
</li>
<li>
<p>The function <span class="code">parse_and_scan/1</span> in the
default includefile accepts <span class="code">{Function, A}</span>
as well as {{M,F}, A} as tokenizer function.
Exceptions in the tokenizer are never caught.</p>
</li>
<li>
<p>The functions <span class="code">yecc:file/1,2</span> can be accessed
from the Erlang shell via the new functions <span class="code">c:y/1,2</span>
in STDLIB.</p>
</li>
</ul>
<p>See yecc(3) for further details.</p>
<p>Own Id: OTP-5366</p>
<h3><a name="id2256921">1.13
Parsetools 1.3.2</a></h3>
<h4>Fixed Bugs and Malfunctions</h4>
<ul>
<li>
<p>A bug in <span class="code">Yecc</span> that was introduced in R9B has been
removed. Another bug concerning precedence declaration
"one level up" has been fixed.</p>
<p>Own Id: OTP-5461</p>
</li>
</ul>
<h3><a name="id2256959">1.14
Parsetools 1.3.1</a></h3>
<h4>Fixed Bugs and Malfunctions</h4>
<ul>
<li>
<p>A bug in the file <span class="code">parsetools/include/yeccpre.hrl</span>
caused <span class="code">yecc:parse_and_scan/1</span> to always report a
parse failure when the lexer reported end-of-file. This
problem has been fixed.</p>
<p>Own Id: OTP-5369</p>
</li>
</ul>
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