How to loop through the console output in Jenkins using customized jelly script? -

i trying write jelly script in jenkins email-ext returns part of console output. trying loop through console output 'failure'. can give me sample script or format doing using jelly script template?

thanks in advance.

maybe can use groovy, jelly harder that.

the sample included part of email-ext here groovy, i.e. retrieves last 100 lines of build output , uses stringescapeutils on each line ensure text not interpreted html:

<%  build.getlog(100).each() { line -> %> <tr><td class="console">${org.apache.commons.lang.stringescapeutils.escapehtml(line)}</td></tr> <%  } %> 

instead of escaping, decision , output stuff if condition holds, e.g.

${if(line.contains('mytext')) { // stuff here }}