| Similarity | Rank | |
|---|---|---|
| parser | 0.901 | 37630 |
| parsing | 0.880 | 32892 |
| regex | 0.871 | 66220 |
| preprocessor | 0.860 | 95287 |
| XPath | 0.853 | 82027 |
| semantics | 0.853 | 25243 |
| parsers | 0.852 | 96490 |
| Syntax | 0.835 | 48518 |
| Lisp | 0.824 | 46662 |
| grammars | 0.823 | 85754 |
| namespaces | 0.820 | 70100 |
| parse | 0.818 | 31142 |
| unicode | 0.818 | 89002 |
| XSLT | 0.818 | 60111 |
| whitespace | 0.818 | 62440 |
| awk | 0.809 | 93748 |
| semantically | 0.805 | 74769 |
| subroutines | 0.800 | 85214 |
| perl | 0.800 | 44220 |
| HTML | 0.800 | 6459 |
| XML | 0.798 | 9748 |
| XSL | 0.797 | 85794 |
| stylesheets | 0.797 | 78340 |
| Unicode | 0.797 | 36132 |
| SGML | 0.796 | 89035 |