Youku Technology

Feb 15, 2023 · Mobile Development

GaiaX Expression Module: Cross-Platform Expression Evaluation Design Based on LR(1) Grammar

GaiaX’s cross‑platform expression module uses a C++ LR(1) parser with lexical, syntax and semantic analysis to bind data, support arithmetic and functions, unify values via GXValue, bridge iOS and Android through JNI, and achieves sub‑millisecond execution for simple and nested expressions.