Python parser generator

Author: i | 2025-04-24

Yapps (Yet Another Python Parser System) is an easy to use parser generator that is written in Python and generates Python code. There are several parser generator systems already Python implementation of the Python parser generator, pgen. python parsing parser-generator ll1 Updated ; Python; jndean / Peguin Star 0. Code Issues Pull requests A partially self-hosting PEG parser generator 🐧 . parser-generator peg packrat

Python implementation of the Python parser generator, pgen.

README - pyLRp python LR(1) parser generatorAuthor: Sebastian Riese The sample files show how to use the parser generator. But are out ofdate at the moment. More documentation will follow. The parsergenerator is written in python3, but it can generate both python2 andpython3 parsers.The generated parsers are standalone modules.usage: pyLRp.py [-h] [-o OFILE] [-l] [-L] [-g] [--print-lextable] [-D] [-d] [-f] [-q] [-T] [-3 | -2] infileA pure python LALR(1)/LR(1) parser generator and lexer generator.positional arguments: infile The parser specification to processoptional arguments: -h, --help show this help message and exit -o OFILE, --output-file OFILE Set the output file to OFILE [default: derived from infile] -l, --line-tracking Enable line tracking in the generated parser -L, --lalr Generate a LALR(1) parser instead of a LR(1) parser -g, --print-graph Print the LR state graph to stdout --print-lextable Print the lextables to stdout -D, --not-deduplicate Compress tables by reusing identical lines -d, --debug Write debug information to the generated file -f, --fast Fast run: generates larger and possibly slower parsers, but takes less time -q, --quiet Print less info -T, --trace Generate a parser that prints out a trace of its state -3, --python3 Generate python3 compatible parser [default] -2, --python2 Generate python2 compatible parserContributors------------Jonas Wielicki (Python 3 support, testing)Testing-------To run the TestSuite run[pyLR1]$ python3 -m unittest discover -s test -vLicense-------Copyright 2009, 2010, 2012 Sebastian RiesePermission is hereby granted, free of charge, to any person obtaining a copyof this software and associated documentation files (the "Software"), to dealin the Software without restriction, including without limitation the rightsto use, copy, modify, merge, publish, distribute, sublicense, and/or sellcopies of the Software, and to permit persons to whom the Software isfurnished to do so, subject to the following conditions:The above copyright notice and this permission notice shall be included inall copies or substantial portions of the Software.THE

Open Source Parser Generators in Python

Skip to content Navigation Menu Sign in GitHub Copilot Write better code with AI Security Find and fix vulnerabilities Actions Automate any workflow Codespaces Instant dev environments Issues Plan and track work Code Review Manage code changes Discussions Collaborate outside of code Code Search Find more, search less Explore All features Documentation GitHub Skills Blog By company size Enterprises Small and medium teams Startups Nonprofits By use case DevSecOps DevOps CI/CD View all use cases By industry Healthcare Financial services Manufacturing Government View all industries View all solutions Topics AI DevOps Security Software Development View all Explore Learning Pathways Events & Webinars Ebooks & Whitepapers Customer Stories Partners Executive Insights GitHub Sponsors Fund open source developers The ReadME Project GitHub community articles Repositories Topics Trending Collections Enterprise platform AI-powered developer platform Available add-ons Advanced Security Enterprise-grade security features Copilot for business Enterprise-grade AI features Premium Support Enterprise-grade 24/7 support Pricing Provide feedback --> We read every piece of feedback, and take your input very seriously. Include my email address so I can be contacted Saved searches Use saved searches to filter your results more quickly Sign in Sign up Explore Topics Trending Collections Events GitHub Sponsors # user-agent-generator Star Here are 3 public repositories matching this topic... Language: All Filter by language All 3 Common Lisp 1 Python 1 Rust 1 iamdual / ua-generator Star 95 Code Issues Pull requests 💻 A random user-agent generator. user-agent generator client-hints random-user-agent fake-user-agent user-agent-generator Updated Mar 8, 2025 Python Aero25x / random-user-agents Star 31 Code Issues Pull requests Randomize your user agents in your script to make yourself less noticeable rust user-agent useragent useragent-parser python-users random-user useragents random-user-agent random-useragents user-agent-generator ua-generator python-user-agent useragent-changer useragent-generator rust-user-agent python-useragent rust-random-user-agent js-useragent ts-useragent hiddencode Updated Jan 6, 2025 Rust Junker / random-ua Star 3 Code Issues Pull requests Random User-Agent generator for Common Lisp user-agent common-lisp random-user-agent user-agent-generator ua-generator Updated Feb 18, 2024 Common Lisp Improve this page Add a description, image, and links to the user-agent-generator topic page so that developers can more easily learn about it. Curate this topic Add this topic to your repo To associate your repository with the user-agent-generator topic, visit your repo's landing page and select "manage topics." Learn more

Parser generator in Python: kwParsing - gadfly.sourceforge.net

What is PGT Network MapPretty Good Terminal - or PGT - is a Windows Desktop application designed primarily for developing and deploying scripts on computer networking devices, such as routers and switches.PGT scripting engine is vendor agnostic by design, and its extensible architecture makes it very easy to generate and deploy simple CLI, Python or Visual scripts for almost any type of device supporting some sort of command interface.Beyond its superb scripting capability, PGT has several, well-documented development interfaces allowing the development of custom plugins that can leverage the advanced scripting APIs provided by the software. The availability of the development and scripting support, as well as the built-in Python IDE environment has inspired the vision of building an interactive Network Map plugin for PGT. Ultimately, PGT Network Map is an optional module of the application making extensive use of Python script parser modules to discover, document and visualize a computer network.How it worksFor those who want to have a quick overview, here is what happens during a discovery process from a helicopter view :PGT will connect to specified set of devices using SSH or Telnet, then using the appropriate Python parser module collects device information and finds protocol neighbors. These neighbors may become the next target of discovery allowing the process to recursively crawling through the complete network defined by specific boundaries. All of the information collected is written to a topology database from where the visualization engine builds the interactive network map graphic. That's simple it is.Under the hoodAnd below are some more details in case you are hungry to understand the process better.Network Discovery in PGT relies on small Python scripts called Parser Modules that are responsible of transforming device configuration and run-time data to a well-defined format via an API using the required vendor specific CLI commands to collect required information. The parsers dealing with basic device configuration data - such as interface details, hardware and software version, serial number, etc. - are called Router Modules, while some other parsers must understand specific network protocol details like OSPF, BGP, ISIS or LLDP to name a few. Depending the actual version and release of the application, PGT supports multiple vendors and understands several networking protocols. However, minor deviations in CLI language syntax may occur occasionally depending on OS release and device type, therefore some customization of the parser modules may be required to achieve best discovery results.Basically, discovery will start from the list of seed devices provided at the beginning of the discovery, by specifying the management address of them. The discovery engine will start connecting to the specified hosts with SSH or Telnet, and tries to find any known Router module that is willing to handle the established connection. In other words, PGT will try to find the appropriate parser module for the connected device. If a Router module is capable to handle a device, parsing will start using that module. From this point the parsing logic is the following : the selected Router Module queries. Yapps (Yet Another Python Parser System) is an easy to use parser generator that is written in Python and generates Python code. There are several parser generator systems already Python implementation of the Python parser generator, pgen. python parsing parser-generator ll1 Updated ; Python; jndean / Peguin Star 0. Code Issues Pull requests A partially self-hosting PEG parser generator 🐧 . parser-generator peg packrat

Wisent: a Python parser generator - seehuhn.de

IN= OUT=em1 SRC=192.168.1.23 DST=192.168.1.20 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=ICMP TYPE=8 CODE=0 ID=59228 SEQ=2Aug 4 13:23:00 centos kernel: IPTables-Dropped: IN=em1 OUT= MAC=a2:be:d2:ab:11:af:e2:f2:00:00 SRC=192.168.2.115 DST=192.168.1.23 LEN=52 TOS=0x00 PREC=0x00 TTL=127 ID=9434 DF PROTO=TCP SPT=58428 DPT=443 WINDOW=8192 RES=0x00 SYN URGP=0Further parsersThere are several other parsers in syslog-ng. The XML parser can parse XML formatted log messages, typically used by Windows applications. There is a dedicated parser for Linux Audit logs. There are many non-standard date formats. The date parser can help in this case, which can be configured using templates. It saves the date to the sender date.SCL: syslog-ng configuration libraryAs mentioned earlier, the syslog-ng configuration library has many parsers. These are implemented in configuration, combining several of the existing parsers.The Apache parser can parse Apache access logs. It builds on the CSV parser, but also combines it with the date parser and rewrites part of the results to be more human readable.The sudo parser can extract information from sudo log messages, so it is easy to alert on log messages if something nasty happens.Log messages from Cisco devices are similar to syslog messages, however, quite often they cannot be parsed by syslog parsers, as they do not comply with specifications. The Cisco parser of syslog-ng can parse many kinds of Cisco log messages. Of course, not all Cisco log messages, only those for which we received log samples.Python parserThe Python parser was first released in syslog-ng 3.10. It can parse complex data formats, where simply combining various built-in parsers is not enough. It can also be used to enrich log messages from external data sources, like SQL, DNS or whois.The main drawback of the Python parser is speed and resource usage. C is a lot more efficient. However, for the vast majority of users, this is not a bottleneck. Python also has the advantage that it does not need compilation or a dedicated development environment. For these reasons, the Python scripts are also easier to spread among users than native C.Application adapters, Enterprise wide message modelAs mentioned earlier, the syslog-ng configuration library contains a number of parsers. These are also called Application Adapters. There is a growing list of parsers. Using these you can easily parse log messages automatically, without any additional configuration. This is possible, because Application Adapters are enabled for the system() source since syslog-ng version 3.13.The Enterprise wide message model (EWMM) allows forwarding name-value pairs between syslog-ng instances. It is made possible by using JSON formatting. It can also forward the original raw message. It is important, as by default, syslog-ng does not send the original message, but what it can reconstruct form it using templates. The original, often broken, formatting is lost. However, some log analytics software expects to receive the broken message format instead of the standards compliant one.ExampleYou might have seen this example configuration a few times before if you followed my tutorial series. This is a good example for Application Adapters. You do not see any parser declarations in the configuration, but you can

python: is there an XML parser implemented as a generator?

TinyPGThe unofficial fork of the Tiny Parser Generator by Herre Kuijpers.It is an LL(1) recursive descent parser generator written in C# which can generate a scanner, parser, and parsetree file in either C# or VB code.The original code and documentation can be found in the article 'A Tiny Parser Generator v1.2' on CodeProject.The source code is licensed under the Code Project Open License (CPOL).Features & FixesThese are the new features and fixes we have added to the original code:Support for [IgnoreCase] flag on terminal symbols.Syntax highlighting now supports var keyword.ParseError now has correct line numbers.Regex tool now updates live without flicker.The IDE will now display the error line number in the output.Production rules without a code block will by default evaluate their sub-rules.New [FileAndLine] flag for redefining the file and line number reported in errors.IDE now uses C# 3.x compiler when testing the generated parser code.Command line building of parsers.IDE expression evaluator now include line and column numbers in errors.Unexpected token errors now display the offending character.We now always show the list of expected tokens on errors.DownloadsThe latest source code can be found in zip form here.The latest binaries can be found in the build artifacts.

twakeham/python-parser-generator - GitHub

Here are 73 public repositories matching this topic... Code Issues Pull requests IPTV 国内+国外 电视台直播源m3u文件, 收集&汇总&本地源脚本 Updated Feb 1, 2024 HTML Code Issues Pull requests Parser and generator of M3U8-playlists for Apple HLS. Library for Go language. 🎦 Updated Dec 8, 2024 Go Code Issues Pull requests 电视台直播m3u8链接/m3u播放列表/广播/IPTV Updated Mar 16, 2024 Code Issues Pull requests WLM3U is a M3U tool written in Swift. Updated Jun 1, 2020 Swift Code Issues Pull requests Updated Dec 24, 2022 Go Code Issues Pull requests Discussions m3u8 file downloader library and chrome & firefox extensions/add-on's Updated Mar 20, 2025 C# Code Issues Pull requests Parse and generate m3u8 playlists for Apple HTTP Live Streaming (HLS) in Ruby. Updated Oct 31, 2020 Ruby Code Issues Pull requests Discussions Automatic M3U playlist and XML guide updater for TheTvApp, TVPass, and MoveOnJoy utilized within your IPTV client. Updated Mar 22, 2025 JavaScript Code Issues Pull requests Fake a live/event HLS stream from a VOD one. Useful for testing. Supports looping. Updated Dec 9, 2024 JavaScript Code Issues Pull requests Download the files of m3u8 using python. （基于Python的m3u8下载器） Updated Feb 24, 2022 Python Code Issues Pull requests Discussions A playlist manager for foobar2000, using Spider Monkey, to save and load (auto)playlists on demand, synchronizing, ... along many more utilities. Updated Mar 23, 2025 JavaScript Code Issues Pull requests Updated Nov 7, 2020 Code Issues Pull requests This is a Linux Bash Script that will automatically extract hidden m3u8 url from Live TV server. Free IPTV M3U Playlist

GitHub - YuhanLiin/Lexer-and-Parser-Python: A complete parser generator

To extract. In this example, we’re telling it to find the first occurrence of a tag with a class attribute of “content.”content_div = soup.find(“div”, class_=”content”)We used “class_” instead of “class” because Python recognizes “class” as a reserved keyword.You can use the “text” attribute to extract data as text using the following command:content_text = content_div.textOr you can extract a value associated with the attribute of a tag using the get() method, as follows:link = soup.find(“a”)href = link.get(“href”)This example uses the find() method to locate the first tag and then uses the get() method to extract the value of the “href” attribute.Troubleshooting an HTML Parser in PythonAs with all coding, working with HTML parsers can be fiddly, so you may need to do some troubleshooting. Here are some suggestions on how to fix an HTML parser in Python or Jupyter:Check your code for syntax errors.Make sure you imported the parser correctly.Update Python or Jupyter to ensure you’re using the latest version.Try a different parser.Check the HMTL source code for errors.Web Scraping ChallengesIt’s fairly simple to use PyQuery and BeautifulSoup for web scraping. However, the scale required to collect the massive amounts of data today’s modern businesses need can be challenging. Once you’ve built a parser, you need to manage proxies, CAPTCHAs, and browser scaling. Dealing with the anti-bot measures of sites you’re scraping is a never-ending headache. Even experienced developers would rather focus on their primary business operations than micromanaging web scrapers.With Scraping Robot, you can plug and play our API to. Yapps (Yet Another Python Parser System) is an easy to use parser generator that is written in Python and generates Python code. There are several parser generator systems already Python implementation of the Python parser generator, pgen. python parsing parser-generator ll1 Updated ; Python; jndean / Peguin Star 0. Code Issues Pull requests A partially self-hosting PEG parser generator 🐧 . parser-generator peg packrat

we-like-parsers/pegen: PEG parser generator for Python - GitHub

Here are 32 public repositories matching this topic... Code Issues Pull requests Discussions NFStream: a Flexible Network Data Analysis Framework. Updated Aug 5, 2024 Python Code Issues Pull requests Discussions DynamiteNSM is a free Network Security Monitor developed by Dynamite Analytics to enable network visibility and advanced cyber threat detection Updated May 23, 2023 Python Code Issues Pull requests PyPI "netflow" package. NetFlow v9 parser, collector and analyzer implemented in Python 3. Developed and tested with softflowd Updated Feb 23, 2024 Python Code Issues Pull requests Cyber Attack Detection thanks to Machine Learning Algorithms Updated Jan 20, 2020 Python Code Issues Pull requests (SIGCOMM '22) Practical GAN-based Synthetic IP Header Trace Generation using NetShare Updated Oct 8, 2023 Python Code Issues Pull requests A python script to send pmacct's output to ElasticSearch Updated Nov 16, 2019 Python Code Issues Pull requests Manito Networks Flow Analyzer Updated Feb 21, 2017 Python Code Issues Pull requests heiFIP: A tool to convert network traffic into images for ML use cases Updated Aug 30, 2024 Python Code Issues Pull requests Rapid cybersecurity toolkit based on Elastic in Docker. Designed to quickly build elastic-based environments to analyze and execute threat hunting, blue team assessments, audits, and security control assessments. Updated Apr 10, 2020 Python Code Issues Pull requests A configurable rule-based labeling tool for network flow files. Updated May 22, 2023 Python Code Issues Pull requests Pure Python netflow and DNS correlation, with reusable Frame Streams, DnsTap and Protobuf implementations Updated Jan 25, 2025 Python Code Issues Pull requests Automatically fetch MAC/IP address tables (ARP and IPv6 neighbors) from devices and build MAC address to BGP peer ASN mappings. Updated Sep 29, 2017 Python Code Issues Pull requests lnf-tools is a set of Perl, Python libraries and C code to analyze and process large set of Netflow records. Updated Dec 10, 2012 Python Code Issues Pull requests Updated Mar 24, 2023 Python Code Issues Pull requests Associates netflow data with system processes and logs to syslog Updated Sep 24, 2018 Python Code Issues Pull requests DUPI Streaming AWS Flow Log Monitor Updated Jul 11, 2021 Python Code Issues Pull requests Netflow generator from JSON to PCAP Updated Sep 25, 2021 Python Code Issues Pull requests Tool to generate a machine learning model to detect port scans, or maybe other unwanted activity Updated Nov 14, 2022 Python Code Issues Pull requests Netflow v5 to NTOPNG reporter/converter/hack Updated Jul 30, 2019 Python Code Issues Pull requests Replay netflow/sflow captured data as regular IP traffic to a network interface Updated Feb 10, 2018 Python --> Improve this page Add a description, image, and links to the netflow topic page so that developers can more easily learn about it.

How to build YAML parser using tatsu python parser generator

Msxml 4.0 Sp3 Parser Free Download.rar More from this folder More from this playlist More from this channel More from this album More from this shelf Nch Prism Plus 2022 Full Version Free Download.rar Roderick Burt in 1402Ofjde d1_20 88 KB 27 days ago Roderick Burt Ms Word 2023 Download For Windows 7.rar Roderick Burt in 1402Ofjde d1_20 56 KB 27 days ago Roderick Burt Monster Hunter World Deluxe Crack.rar Roderick Burt in 1402Ofjde d1_20 106 KB 27 days ago Roderick Burt Native Instruments Kontakt 5 7 3 Vst 2758725 License Code Generator Download.rar Roderick Burt in 1402Ofjde d1_20 86 KB 27 days ago Roderick Burt Mlb 724205730 Captura Blackmagic Intensity Shuttle Hdmi 2022 _Jm Key Generator Full Installer (Free Download).rar Roderick Burt in 1402Ofjde d1_20 106 KB 27 days ago Roderick Burt Mixcraft Pro Studio 8.1 Free Download.rar Roderick Burt in 1402Ofjde d1_20 72 KB 27 days ago Roderick Burt View all 4788 files View all 4788 tracks View all 4788 videos View all 4788 images View all 4788 books File Name 11:11 in 100 Mb 1 day ago File Author Description Msxml 4.0 Sp3 Parser Free Download - download at 4shared. Msxml 4.0 Sp3 Parser Free Download is hosted at free file sharing service 4shared. Checked by McAfee. No virus detected. Comments Add new comment Send Cancel 500 characters left Continue in app Scan QR code to open file in 4shared app Msxml 4.0 Sp3 Parser Free Download.rar File QR Code: Msxml 4.0 Sp3 Parser Free Download.rar Download will start automatically Thank you for downloading You have exceeded your traffic limit Msxml 4.0 Sp3 Parser Free Download.rar (86 KB) If your download has not started automatically, please click here. Don't like waiting? 4shared. Yapps (Yet Another Python Parser System) is an easy to use parser generator that is written in Python and generates Python code. There are several parser generator systems already Python implementation of the Python parser generator, pgen. python parsing parser-generator ll1 Updated ; Python; jndean / Peguin Star 0. Code Issues Pull requests A partially self-hosting PEG parser generator 🐧 . parser-generator peg packrat

python - What's the most Pythonic XHTML/HTML parser/generator

1. OverviewIn this tutorial, we’ll do a quick overview of the ANTLR parser generator and show some real-world applications.ANTLR (ANother Tool for Language Recognition) is a tool for processing structured text.It does this by giving us access to language processing primitives like lexers, grammars, and parsers as well as the runtime to process text against them.It’s often used to build tools and frameworks. For example, Hibernate uses ANTLR for parsing and processing HQL queries and Elasticsearch uses it for Painless.And Java is just one binding. ANTLR also offers bindings for C#, Python, JavaScript, Go, C++ and Swift.3. ConfigurationFirst of all, let’s start by adding antlr-runtime to our pom.xml: org.antlr antlr4-runtime 4.7.1And also the antlr4-maven-plugin: org.antlr antlr4-maven-plugin 4.7.1 antlr4 It’s the plugin’s job to generate code from the grammars we specify.4. How Does It Work?Basically, when we want to create the parser by using the ANTLR Maven plugin, we need to follow three simple steps:prepare a grammar filegenerate sourcescreate the listenerSo, let’s see these steps in action.5. Using an Existing GrammarLet’s first use ANTLR to analyze code for methods with bad casing:public class SampleClass { public void DoSomethingElse() { //... }}Simply put, we’ll validate that all method names in our code start with a lowercase letter.5.1. Prepare a Grammar FileWhat’s nice is that there are already several grammar files out there that can suit our purposes.Let’s use the Java8.g4 grammar file which we found in ANTLR’s Github grammar repo.We can create the src/main/antlr4 directory and download it there.5.2. Generate SourcesANTLR works by generating Java code corresponding to the grammar files that we give it, and the maven plugin makes it easy:mvn packageBy default, this will generate several files under the target/generated-sources/antlr4 directory:Java8.interpJava8Listener.javaJava8BaseListener.javaJava8Lexer.javaJava8Lexer.interpJava8Parser.javaJava8.tokensJava8Lexer.tokensNotice that the names of those files are based on the name of the grammar file.We’ll need the Java8Lexer and the Java8Parser files later when we test. For now, though, we need the Java8BaseListener for creating our MethodUppercaseListener.5.3. Creating MethodUppercaseListenerBased on the Java8 grammar that we used, Java8BaseListener has several methods that we can override, each one corresponding to a heading in the grammar file.For example, the grammar defines the