Test editor tokenAtTextPosition method. Running: testHighlightedText Line: function foo(a, b) { Column #0 (char 'f') - token: {"startColumn":0,"endColumn":8,"type":"js-keyword"} Column #10 (char 'o') - token: {"startColumn":9,"endColumn":12,"type":"js-variable"} Column #13 (char 'a') - token: {"startColumn":13,"endColumn":14,"type":"js-def"} Line: var f = /.a/.test(a); /* Column #8 (char 'f') - token: {"startColumn":8,"endColumn":9,"type":"js-def"} Column #14 (char 'a') - token: {"startColumn":12,"endColumn":16,"type":"js-string-2"} Column #19 (char 's') - token: {"startColumn":17,"endColumn":21,"type":"js-property"} Line: this is a comment */ Column #0 (char 't') - token: {"startColumn":0,"endColumn":20,"type":"js-comment"} Column #5 (char 'i') - token: {"startColumn":0,"endColumn":20,"type":"js-comment"} Line: return f + "looongword"; Column #5 (char 'e') - token: {"startColumn":4,"endColumn":10,"type":"js-keyword"} Column #20 (char 'n') - token: {"startColumn":15,"endColumn":27,"type":"js-string"}