What does expr-lang/expr do?

Expr is a statically typed expression engine and domain-specific language for parsing and evaluating dynamic logic strings within Go applications. It functions as a bytecode expression evaluator that executes compiled logic with guaranteed termination and memory safety.

What are the main features of expr-lang/expr?

The main features of expr-lang/expr are: Dynamic Rule Engines, Bytecode Virtual Machines, Expression Evaluators, Type Validation, Statically Typed Evaluators, Expression Languages, High-Performance Expression Evaluators, Sandboxed Logic Execution.

What are some open-source alternatives to expr-lang/expr?

Open-source alternatives to expr-lang/expr include: antonmedv/expr — Expr is a high-performance expression evaluation engine and language for Go applications. It functions as a dynamic… google/cel-go — cel-go is a Go implementation of the Common Expression Language, providing a type-safe engine for the evaluation of… killme2008/aviatorscript — Aviatorscript is a high-performance scripting language and expression evaluation engine designed for integration… knetic/govaluate — govaluate is a Go expression evaluator and runtime logic parser. It functions as a dynamic rule engine that converts… google/cel-spec — The Common Expression Language specification is a formal standard for a non-Turing-complete expression language… microsoft/rulesengine — RulesEngine is a business logic evaluator for .NET that executes complex rule workflows and dynamic expressions…

Expr | Awesome Repos

Features

Dynamic Rule Engines - Provides a dynamic rule engine to evaluate custom logic strings at runtime based on changing data environments.
Bytecode Virtual Machines - Utilizes a custom bytecode virtual machine to execute compiled expressions with high performance and guaranteed termination.
Expression Evaluators - Parses and executes dynamic logic expressions against specific data environments to determine results at runtime.
Type Validation - Validates that dynamic expressions adhere to expected data types during compilation to prevent runtime errors.
Statically Typed Evaluators - Ships a statically typed engine that validates type compatibility during compilation to prevent runtime data errors.
Expression Languages - Provides a domain-specific expression language for parsing and evaluating dynamic logic strings within Go applications.
High-Performance Expression Evaluators - Running complex logic via a bytecode compiler and virtual machine to achieve faster evaluation than standard interpreters.
Sandboxed Logic Execution - Ensures memory safety and guaranteed termination when executing user-defined logic within Go applications.
Expression Sandboxes - Provides a security layer ensuring user-defined expressions terminate reliably and execute without memory vulnerabilities.
Pure Functional Logic Implementations - Uses a pure-function execution model to calculate results without modifying external state or introducing side effects.
Static Analysis - Performs static analysis during the compilation phase to validate operand compatibility and prevent runtime crashes.
Data Transformation - Enables the restructuring and mapping of data collections using a flexible, runtime-evaluated expression language.
Collection Operators - Provides functional operators such as map and filter to transform, refine, and aggregate data collections.
Context-Aware Variable Resolution - Resolves variable identifiers by looking up values within a provided data context during expression evaluation.
Expression Tree Compilation - Transforms human-readable expressions into an executable internal format to eliminate repeated parsing overhead at runtime.
Abstract Syntax Tree Parsing - Implements a system to convert expression strings into structured trees for logical analysis and grammar enforcement.

بدائل مفتوحة المصدر لـ Expr

مشاريع مفتوحة المصدر مشابهة، مرتبة حسب عدد الميزات المشتركة مع Expr.

antonmedv/expr
antonmedv/expr
7,905عرض على GitHub
Expr is a high-performance expression evaluation engine and language for Go applications. It functions as a dynamic rule engine that parses and executes custom logic and data validations at runtime without requiring the application to be recompiled. The system utilizes a sandboxed logic executor to run expressions without side effects. It ensures program termination by employing instruction-level loop detection to prevent infinite loops and isolates the evaluation process from the host system. The engine employs a bytecode-based virtual machine and abstract syntax tree analysis to achieve ex
Go
عرض على GitHub7,905
google/cel-go
google/cel-go
2,875عرض على GitHub
cel-go is a Go implementation of the Common Expression Language, providing a type-safe engine for the evaluation of non-Turing complete, side-effect-free expressions. It functions as an embedded expression engine that converts human-readable strings into type-checked abstract syntax trees to ensure safe execution. The system utilizes a compile-once evaluate-many model, parsing and validating expressions into cached programs for repeated execution across different datasets. It further distinguishes itself as a partial state evaluator, using commutative logic to compute results and return resid
Gocelexpressionexpression-evaluator
عرض على GitHub2,875
killme2008/aviatorscript
killme2008/aviatorscript
5,216عرض على GitHub
Aviatorscript is a high-performance scripting language and expression evaluation engine designed for integration within Java applications. It enables the dynamic execution of mathematical and logical formulas by compiling script instructions directly into Java bytecode at runtime. The engine distinguishes itself by transforming dynamic logic into machine-readable instructions, allowing for near-native execution speeds. It includes a built-in caching mechanism that stores compiled bytecode to eliminate redundant parsing and compilation overhead during repeated formula execution. This library
Javaaviatorscriptexpression-evaluatorjava
عرض على GitHub5,216
google/cel-spec
google/cel-spec
3,673عرض على GitHub
The Common Expression Language specification is a formal standard for a non-Turing-complete expression language designed for safe, portable, and fast logic evaluation. It serves as a cross-language logic standard and a declarative policy language, providing a consistent semantic framework for executing boolean expressions and data transformations across different programming environments. This specification acts as an embedded expression engine that allows applications to integrate portable logic for evaluating user-defined configurations. It is specifically designed to enable safe user-defin
Starlark
عرض على GitHub3,673

عرض جميع البدائل الـ 30 لـ Expr

Expr | Awesome Repos

expr-langexpr

Expr

Features

بدائل مفتوحة المصدر لـ Expr

antonmedv/expr

google/cel-go

killme2008/aviatorscript

google/cel-spec

Frequently asked questions

سجل النجوم

بدائل مفتوحة المصدر لـ Expr

antonmedv/expr

google/cel-go

killme2008/aviatorscript

google/cel-spec

Frequently asked questions