Research On Code Conversion Technology In Program Code Similarity Detection

The segmenting programming code is a very important technical for implement the system of detecting programming code similar. A very good technical of segmenting words can provide faster and exacter method to the system of detecting programming code similar. It is very important effect to detecting programming code similar.In the system of the detecting programming code similar, the technical of segmenting words can use so widely. Firstly, we can look the programming code as the text string, then use grammar analysis method to convert such text string to the token what can describe basic information and properties of the programming code. Such this process just is word segmenting and converting.This paper introduces the technology of detecting programming code similar. Such as detecting similar definition and detecting similar technology sorts. Then it introduces detecting similar technology's development in overseas and internal. At last, the paper introduces very useful arithmetic for programming code segmenting and converting. They are: segmenting words arithmetic, character string matching arithmetic etc.In programming code segmenting and converting research, We implement a experiment system, Its functions contain four parts, First part of function is programming code processing and segmenting, processing just is removing un-useful content ,such as comments, space and so on; Second part of function is creating a word dictionary for programming converting. Third part of function is using character string matching arithmetic to convert programming code to the token. Forth part of function print out the converting results via GUI of the system. At last, we must test and analyzeour experiment system via a reasonable and scientific experimentation. All experimentation data come from student's homework. Test result tell us this system can support multiple programming language converting, and the result as character string type, it can be used for detecting similar arithmetic base on character string detecting. This experiment provides stable testing information. And such information is very important for researching detecting programming code similar system.