| 1 | 57,720 | - | cursor | external iterator API |
| 2 | 73,595 | - | grammar | BNF-like grammar specified directly in ruby |
| 3 | 128,552 | - | ruby2cext | Ruby2CExtension is a Ruby to C extension translator/compiler. |
| 4 | 131,159 | - | reference | provides reference/pointer functionality of other languages |
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