javascript - Highlighting Exact Text Match -

i have following java userscript:

function highlightword(word) { var xpath = "//text()[contains(., '" + word + "')]"; var texts = document.evaluate(xpath, document.body, null, xpathresult.unordered_node_snapshot_type, null); (n = 0; n < texts.snapshotlength; n++) {     var textnode = texts.snapshotitem(n);     var p = textnode.parentnode;     var = [];     var frag = document.createdocumentfragment();     textnode.nodevalue.split(word).foreach(function(text, i) {         var node;         if (i) {             node = document.createelement('span');             node.style.backgroundcolor = 'lightgreen';             node.appendchild(document.createtextnode(word));             frag.appendchild(node);         }         if (text.length) {             frag.appendchild(document.createtextnode(text));         }         return a;     });     p.replacechild(frag, textnode);     } } highlightword('office'); 

would able me finding solution match exact text of highlightword's add? example, want match "office" , not "officer".

thanks!

this answer

https://stackoverflow.com/a/2994336/2707021

should help. need apply word boundaries pattern match string on line

var xpath = "//text()[contains(., '" + word + "')]";