图符语言CQL解释器的实现  

Implementation of A Visual Language CQL Interpreter

作　　者：鞠时光[1] 李星毅[1] 

机构地区：[1]江苏大学计算机科学与通信工程学院,镇江212013

出　　处：《计算机辅助设计与图形学学报》2005年第1期179-184,共6页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家自然科学基金 (60 173 0 64 );江苏省自然科学基金 (BK2 0 0 2 0 4)

摘　　要：为了有效地实现数据库图符查询语言解释器 ,引入了图卡解析树 ;开发出二维文法规则 ;定义出一套适宜于模式分析、语法分析及语义解析的图符程序内部存储机制 ;Because the basic morpheme of visual program is not the common character, the compiler or interpreter of the language is different from that of the program in a common high-level language. In order to implement the interpreter of the database's icon querying language efficiently, the analytical tree of cards is introduced in the implementation. We make use of the 2-dimensional regulating metho, and define the internal storage mechanism of the icon program to meet the need of the pattern analysis, grammatical and semantic analysis. At the same time, temp-cards are used to solve the compiling problem of complex sentence with embedded structure.

关 键 词：可视化 图符语言 解释系统 数据库 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]