cobol source code analyzer

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[Compilation Principle] Analysis of the source code of a lexical analyzer

1. Lexical analyzer Function: Read the input characters of the source program and form them into a word base to generate and output a lexical unit sequence. Ii. Design Principles 1) symbol classification of c programming language: keywords, identifiers, constants, operators, operators 2) lexical analyzer Dual Output: 3) Regular Expression and state transition di

Lucene Full-text Search word breaker: Use the IK analyzer Chinese word breaker (to modify IK Analyzer source to support lucene5.5.x) __lucene

Note: Based on lucene5.5.x version One, simple introduction of IK Analyzer IK Analyzer is linliangyi2007 's work, and then thanks for his blog address:http://linliangyi2007.iteye.com/ IK Analyzer supports two participle, one is the most fine-grained participle (recommended use, IK default to use the most fine-grained), there is a kind of intelligent participle (

Yahoo open-source MySQL Performance Analysis Tool (MySQL Performance Analyzer ),

Yahoo open-source MySQL Performance Analysis Tool (MySQL Performance Analyzer ), Address: https://github.com/yahoo/mysql_perf_analyzerMySQL Performance Analyzer is an open source project for MySQL performance monitoring and analysis. This repository implements des two sub projects: Java web application project myperf J

Spark SQL Catalyst Source Analysis Analyzer

], mappartitionsrdd[4] at mappartitions at basicoperators.scala:174)! Unresolvedrelation None, Temp_shengli_mobile, noneSummarize this article from the source code point of View Analysis Analyzer in the SQL parser resolved unresolve Logical Plan analyze process, the execu

My open-source project: FLV Encapsulation Format Analyzer

This article introduces a small open-source project: FLV Encapsulation Format analyzer. FLV, short for Flash Video, is a widely used Video encapsulation format on the Internet. Video websites such as Youtube and Youku all use FLV to encapsulate videos. My project is not large and can be used to learn the FLV Encapsulation Format Structure. In addition, it supports separating video streams and audio streams

My open-source project: H.264 bitstream Analyzer

This article introduces a small open-source project: H.264 bitstream analyzer. In the course of learning, we have obtained a lot of resources from the open-source community, which is also a feedback to the open-source community. My project is not large and can be used to learn the H.264

My open-source project: JPEG Analyzer

This article introduces a small open-source project: JPEG analyzer. The full name of JPEG is Joint Photographic Experts Group (combined with the image Expert Group), which is the most widely used image encoding standard today. My project is not large and can be used to learn JPEG coding standards. It works better if you look at the source

My open-source project: AAC format Analyzer

This article introduces a small open-source project: AAC format analyzer. The full name of AAC is Advanced Audio Coding, which is a widely used Audio encoding format on the Internet and the best Audio encoding format at present. A large part of existing videos on the Internet use AAC for audio encoding. Developed Using MFC of VC 2010. Faad2, an open source decode

My open-source project: TS Encapsulation Format Analyzer

This article introduces a small open-source project: TS Encapsulation Format analyzer. TS stands for MPEG 2 Transport Stream (MPEG2 transmission Stream), which is widely used in broadcast and television systems, such as digital TVs and IPTV. My project is not large and can be used to learn the TS Encapsulation Format Structure. In addition, it supports separating video streams and audio streams in TS. And t

C # lexical Analyzer (ii) input buffering and code positioning

Series Navigation (a) Introduction to lexical analysis (ii) input buffering and code positioning (c) Regular expressions (iv) Construction of NFA (v) Conversion of DFA (vi) Structural lexical analyzer (vii) Summary One, input bufferBefore describing how to perform lexical analysis, let's start with a less-than-mentioned question-how to read a stream of characters from a

C # lexical analyzer (2) Input buffering and code locating

Series navigation (1) Introduction to lexical analysis (2) Input buffering andCodePositioning (3) Regular Expressions (4) construct NFA (5) DFA Conversion (6) construct a lexical analyzer I. input buffer Before introducing how to perform lexical analysis, let's talk about a problem that is not very mentioned-how to read the sequence stream from the source file. Why is this issue

C Code Analyzer (one Open champion)

Recently, I wanted to be able to write a generic Code analysis tool (in fact the word is a bit too.) In fact the C code). See these days I see Code dizzy, despite the source insight help, still not enough wisdom to think a lot of places.The following are some of the main problems that are encountered today:1. Very many

C source code porting, C source code porting

C source code porting, C source code porting We know that many programmers abroad work in linux/unix environments, so there are many excellent c/c ++ language code that cannot be compiled directly on the windows platform. In many cases, we can only use tools such as msys an

Spark SQL external DataSource external data source (ii) Source code analysis

Tags: map rds Cat TTY Ops introduction override API Family Last week Spark1.2 just announced that the weekend at home nothing, to understand this feature, by the way to analyze the source code, to see how this feature is designed and implemented./** Spark SQL source Code Analysis series Article * /(Ps:external datasour

Spark SQL external DataSource external data source (ii) Source code analysis

Last week Spark1.2 just released, the weekend at home nothing, to understand this feature, by the way to analyze the source code, see how this feature is designed and implemented./** Spark SQL Source Analysis series Article * /(Ps:external datasource Use article address: Spark SQL External DataSource External Data source

Use Lucene to search Java source code (1)

[integrated development environment] has another limitation: most of the tools available only support source code search based on one of the above standards. In search, there is a lack of flexibility to combine these criteria for query. Now we start to build a source code search engine that supports these requirements

Source Code test tool recommendations and reviews

Testing Tools for C + + classes, libraries, and subsystemsctc++--test coverage analysis and execution analysis tools for C + + codedevadvantage--Creating a custom C # encoding standardglowcode--memory and resource leak detection, Code analyzer, function call tracking and reporting toolshexawise--a powerful web-based test case generation toolinsure++--a run-time error auto-detection Tool for C + + applicati

Impala source code analysis (2)-SQL parsing and execution plan generation

. Finally, the TExecRequest object is returned for backend execution. Impala-backend (C ++ code) obtains this TExecRequest object, and a coordinator distributes and executes each backend. This is the content of the next article. Vomit: you can still see the shadow of MapReduce... Each PlanFragment has a DataStreamSink that points to the ExchangeNode in other PlanFragment, which is a 1-to-N relationship... Therefore, the bottleneck of the distributed s

Use Lucene to search Java source code (2)

the import class is saved without being marked or analyzed. Class Name and method name are converted to lowercase letters before they are saved. Query Java source codeAfter creating a multi-field index, you can use Lucene to query these indexes. It provides two important classes: indexsearcher and queryparser for searching files. The queryparser class is used to parse the query expression entered by the user, and the indexsearcher class searches for

Apache Spark Source code One-on-one-SQL parsing and execution

Welcome reprint, Reprint please indicate the source, emblem Shanghai one lang.ProfileThere is a new feature in the upcoming Spark 1.0, the support for SQL, which means that SQL can be used to query the data, which is undoubtedly a boon for DBAs, since the previous knowledge continues to take effect without having to learn any Scala or other script.In general, any SQL subsystem needs to have parser,optimizer,execution three functional modules, how are

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