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expr-lang/expr

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Expression language and expression evaluation for Go

20 mentions on Hacker News by 12 people: 12 stories, 8 comments · first 2018-07-16 · latest 2025-07-24

Mentions per year 20 mentions · busiest year 2023 (8)
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  1. …data transformations (rename, filter, enrich spans/logs, sample dynamically) using an [Expr-based]( https://github.com/expr-lang/expr ) scripting system - Redesigned dashboards and query builder for faster incident response and exploration…
    comment by vmihailenco · 2025-07-24 · in Show HN: Uptrace v2.0: 10x Faster Open-Source Observability with ClickHouse JSON
  2. …and then the structure of the rest of the file just follows normal serialization format. [1]: https://github.com/expr-lang/expr , but I'm sure many static languages have something like this. If you don't know one, it's a good tool to put…
    comment by jerf · 2024-10-24 · in Lingo: A Go micro language framework for building Domain Specific Languages
  3. …I think the best we can do at the moment is runtime expression evaluation with something like this: https://github.com/expr-lang/expr or this: https://github.com/Knetic/govaluate
    comment by hello_computer · 2024-08-12 · in Go is my hammer, and everything is a nail
  4. ▲ 2
    Expr 1.16.5
    story by medv · 2024-04-16 · 0 comments
  5. ▲ 1
    Expr 1.16
    story by medv · 2024-01-24 · 1 comment
  6. ▲ 3
    Expr Release v1.15.8
    story by medv · 2024-01-07 · 0 comments
  7. You're basically creating an expression language: https://github.com/expr-lang/expr
    comment by techn00 · 2023-12-25 · in SQL as API
  8. ▲ 2
    Expr moved to expr-lang/expr
    story by todsacerdoti · 2023-12-04 · 0 comments
  9. …all, there's massive value I've gained from leveraging this runtime solution in multiple projects: https://github.com/antonmedv/expr The language is easy enough for people to pick-up.
    comment by KyleSanderson · 2023-09-16 · in Solving the Expression Problem in Go
  10. ▲ 1
    Expr Release v1.15
    story by medv · 2023-08-31 · 0 comments
  11. ▲ 3
    Expr v1.14 release: Go expression language
    story by medv · 2023-08-16 · 0 comments
  12. ▲ 1
    Go Expression Language
    story by swissswiss · 2023-02-13 · 0 comments
  13. …or the recently-shared Expr [1]. This is really neat. Thanks for sharing. [0] https://lit.dev/ [1] https://github.com/antonmedv/expr
    comment by jameschensmith · 2023-02-05 · in Polymode: Multiple Major Modes and How to Use SQL and Python in One Buffer
  14. ▲ 2
    Expr (Go expression language) releases v1.11
    story by todsacerdoti · 2023-02-02 · 2 comments
  15. Have you had a look at Expr? https://github.com/antonmedv/expr We are using it for ETL processing and are very happy with it. The performance is excellent and it is easily extendable.
    comment by mfollert · 2022-01-27 · in An embeddable Prolog scripting language for Go
  16. ▲ 1
    Expression evaluation with static typing for Go
    story by ngaut · 2019-11-11 · 0 comments
  17. ▲ 1
    Release 1.3.0 of Expr expression evaluation library
    story by medv · 2019-10-15 · 1 comment
  18. ▲ 3
    Expr is package to evaluate expressions using bytecode virtual machine in Go
    story by medv · 2019-05-28 · 0 comments
  19. One for Go(lang)[0] [0] https://github.com/antonmedv/expr
    comment by wilsonfiifi · 2018-11-12 · in Simple Safe Sandboxed Extensible Expression Evaluator for Python
  20. ▲ 2
    Show HN: Expr is a business rule engine for Go
    story by medv · 2018-07-16 · 0 comments