HTML tags produce undefined behavior on the TWiki parser
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Key: DOXIA-441
URL: https://jira.codehaus.org/browse/DOXIA-441
Project: Maven Doxia
Issue Type: Bug
Components: Module - Twiki
Affects Versions: 1.1.4
Environment: RHEL 5.5, java 1.6.0_20
Reporter: Rodrigo Tobar
Attachments: TWikiParserTest.java
I'm using the TWiki parser in conjunction with a sink to format some twiki
text. When putting some html tags in the code, the parser produces invalid
output. I found this bug while working with a home-brewed sink, but later I
tried with other sinks and it was also the case, which pointed out that the
fault is actually in the parser. Actually the test case I'm attaching is using
a XhtmlBaseSink sink.
The fault seems to be in org.apache.maven.doxia.module.twiki.parser.TextParser.
I see one of two possibilities (but I don't have the time to produce a patch,
and I prefer just to explain my findings):
* Fix the HTML_TAG_PATTERN pattern, since it is detecting, in the example, the
whole " and a bit of <font color=\"red\">red</font>" string, instead of just
"<font color=\"red\">red</font>"
* If that's not possible, then the pattern compiled in line 117/118 should be
changed to take into account the content before the HTML tag, so it would be
"(.+)?(\\<" + tag + ".*\\>)(.*)?(\\<\\/" + tag + "\\>)(.*)?" (the difference is
the initial "(.+)?"). The logic with the group numbers should be changed too
* Other solution is to take into account the restul of xhtmlMatcher.start(1)
in TextParser#parseXHTML:331, so it realizes that there is normal text before
the actual tag.
Please point out if this is really a bug in the TWiki parser, or if I'm simply
doing something wrong. I couldn't find any reference in the mailing lists or
whatsoever, and I'm inclined to see this as a bug; therefore, I'm opening this
ticket.
Cheers
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