Work-around: I discovered that if I enclosed the first part of the expression in parens, it works. E.g. replace($s, "^(a*?)b+", "x"): "xcc"
On Fri, May 21, 2010 at 2:56 PM, Maloney, Christopher (NIH/NLM/NCBI) [C] < malon...@ncbi.nlm.nih.gov> wrote: > xquery version "1.0"; > > > > let $s := "aabbcc" > > return > > <html xmlns="http://www.w3.org/1999/xhtml";> > > <head> > > <title>regex-anomaly.xqy</title> > > </head> > > <body> > > <h1>regex-anomaly.xqy</h1> > > <p> > > Demonstrate a MarkLogic regular expression bug. > > </p> > > <p> > > Test string is "{$s}" > > </p> > > <p> > > <b>Works correctly:</b> match as many "a"s as you can > > (greedily), > > then one or more "b", and replace with an "x", we expect > > "xcc": > > </p> > > <blockquote> > > replace($s, "^a*b+", "x"): > > "{replace($s, "^a*b+", "x")}" > > </blockquote> > > <p> > > <b>Fails:</b> note how the question mark turns off > > greedy matching for the "+" sign, the result should > > be the same "xcc", but I am seeing "xbcc": > > </p> > > <blockquote> > > replace($s, "^a*?b+", "x"): > > "{replace($s, "^a*?b+", "x")}" > > </blockquote> > > <p> > > I tested this same expression using Perl and using > > Saxon, and they both give the expected results "xcc" > > in both cases. > > </p> > > </body> > > </html> > > > > > > > > > > Chris Maloney > > NIH/NLM/NCBI (Contractor) > > Building 45, 5AN.36D-17 > > 301-443-6461 > > > > _______________________________________________ > General mailing list > General@developer.marklogic.com > http://developer.marklogic.com/mailman/listinfo/general > >
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