1.0.1 1.1 regexp http://jakarta.apache.org/taglibs/regexp-1.0 The Regexp custom tag library contains tags which can be used to perform Perl syntax regular expressions. These tags implement the three most common Perl5 operations involving regular expressions: [m]/pattern/[i][m][s][x] s/pattern/replacement/[g][i][m][o][s][x] split() As with Perl, any non-alphanumeric character can be used in lieu of the slashes. For more information on how to use Perl syntax regular expressions you can start at the Perl Regular Expression page. http://www.perl.com/pub/doc/manual/html/pod/perlre.html If you search the web you can find thousands of web sites documenting how to use perl regular expressions. regexp org.apache.taglibs.regexp.RegexpTag JSP id true false text org.apache.taglibs.regexp.TextTag JSP id true false existsMatch org.apache.taglibs.regexp.ExistsMatchTag JSP regexp true false text true false value false false substitute org.apache.taglibs.regexp.SubstituteTag JSP regexp true false text true false split org.apache.taglibs.regexp.SplitTag org.apache.taglibs.regexp.SplitTEI JSP id true false regexp false false text true false limit false false match org.apache.taglibs.regexp.MatchTag org.apache.taglibs.regexp.MatchTEI JSP id true false regexp true false text true false group org.apache.taglibs.regexp.GroupTag empty number true false