关键词: NDQJava2, 处理系统, 词法分析程序, 语法分析程序

Abstract: NDQJava2 is a hybrid, structured and imperative quantum programming language, which is an extension of NDQJava with some additional quantum components, such as quantum conditional statement, quantum loop statement, quantum subprogram, quantum module and quantum exception handling mechanism. After briefly stating the NDQJava2 processing system, this paper focuses on the lexical analyzer and the syntactic analyzer, which uses direct steering method for lexical analysis, identifies the words then generates a sequence of words, uses recursive subroutine method for syntax analysis, generates syntax tree. The example shows that the result of this process is correct, fulfills lexical analysis and syntax analysis tasks.

Key words: NDQJava2, processing system, lexical analyzer, syntactic analyzer