Changes between Initial Version and Version 1 of Regular expression support

Timestamp:

Oct 21, 2009, 10:06:00 AM (15 years ago)

Author:

kthoden

Comment:

--

Regular expression support

@@ +1 @@
+{{{
+#!html
+
+    <h1>Regular Expressions in Arboreal</h1>
+
+<p>Arboreal allows for regular expression searches, using the syntax
+of <b>Perl 5.003</b> regular expressions. The regular expression
+library used is <a
+href="http://jakarta.apache.org/oro/index.html">Jakarta ORO</a>.</p>
+
+<p>A summary of the regular expression syntax is available in the <a
+href="jakarta-oro-2.0.6/docs/api/org/apache/oro/text/regex/package-summary.html#perl5re">API documentation</a>.</p>
+
+<h3>A note on parenthesized groups</h3>
+
+<p>If a regular expression contains <b>at least one</b> parenthesized
+group, Arboreal will highlight in the search results <b>only</b> the
+contents of the parenthesized groups. E.g., a search for
+<tt>([Tt]his).*?(sentence)</tt> will produce results such as the
+following:</p>
+
+<blockquote><i><span class="hilite">This</span> short <span
+class="hilite">sentence</span> illustrates the point.</i></blockquote>
+
+<p>This feature allows one easily to construct searches, the results
+of which can be dragged onto a term in the term editor to add
+instances.</p>
+}}}