The latest articles on DEV Community by Nikolas Sokratous (@nikolas_sokratous_ba3dcce). https://dev.to/nikolas_sokratous_ba3dcce https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3066322%2F8983f43e-ac06-40f5-997b-ee680acc52bf.png https://dev.to/nikolas_sokratous_ba3dcce en Nikolas Sokratous Wed, 05 Nov 2025 20:28:56 +0000 https://dev.to/nikolas_sokratous_ba3dcce/a-new-language-for-cobol-workloads-built-on-go-1gdo https://dev.to/nikolas_sokratous_ba3dcce/a-new-language-for-cobol-workloads-built-on-go-1gdo <p>I am building an open-source language layer on top of Go, designed specifically for COBOL-style workloads: </p> <ul> <li>Native decimal arithmetic (COBOL-accurate) </li> <li>Record structures and copybook compatibility </li> <li>Batch jobs and transactional orchestration as first-class constructs</li> <li>Sequential / indexed file I/O baked into the runtime </li> <li>Compiles through Go for speed, concurrency, and cloud deployability </li> </ul> <p>Think of it as Kotlin for COBOL, or “COBOL on Go” familiar to mainframe engineers, powerful for modern developers.</p> <p>I've been working on testing the compiler with NIST test right now and here are the results so far:<br> NIST COBOL-85 validation: 77.61% overall (305/393 tests) </p> <ul> <li>NC (Core COBOL): 97.89% (93/95) </li> <li>SM (Statements): 100% (13/13) </li> <li>RL (Relative I/O): 100% (26/26) </li> <li>IF (Intrinsic Functions): 100% (45/45) </li> <li>IC (CALL): 96% (24/25) </li> <li>Compliance tests: 100% passing </li> <li>Acceptance tests: 100% passing</li> </ul> <p>I can't find a business case for it so far, so please feel free to share any ideas<a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fgithub.com%2FCoreBankLang%2FCobGo_community" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fgithub.com%2FCoreBankLang%2FCobGo_community" alt="CoreBankLang/CobGo_community" width="" height=""></a></p> cobol go mainframe cloud