RE2
ZXing
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RE2 | ZXing | |
---|---|---|
49 | 42 | |
8,614 | 32,250 | |
1.1% | 0.7% | |
8.9 | 8.6 | |
19 days ago | 5 days ago | |
C++ | Java | |
BSD 3-clause "New" or "Revised" License | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
RE2
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C Is the Greenest Programming Language
Looking at the benchmark where C++ is worst compared to other languages, it's depending on the library used. I would guess if they used Google's re2 Regex library instead of Boost's, the result would be different.
https://github.com/google/re2
https://github.com/greensoftwarelab/Energy-Languages/blob/ma...
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what does this + do in the regular expression "(^A-Za-z)+"
That page says it just includes "some of the most common special characters", and following the link to the Examples page in turn includes a link to the full list.
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On a Great Interview Question
Python uses backtracking, so this probably isn't O(n), especially with the ability to choose the dictionary.
But with there are non-backtracking matchers which would make this O(n). Here's re2 from https://github.com/google/re2 :
>>> import re2
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RE2 VS hyperscan - a user suggested alternative
2 projects | 17 Mar 2023
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hyperscan VS RE2 - a user suggested alternative
2 projects | 17 Mar 2023
RE2 is a Google regular expression library
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Projects ideas to learn C++/OOP
google's regex library: https://github.com/google/re2
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Regex: is there a difference between * and {0,}, as well as + and {1,}?
I am currently working with Regex, specifically Re2, and was wondering if there is a real difference between the above expressions for repeated sub-regex.
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First release of SPVM::File::Spec - complex regular expressions, file tests, SPVM::Cwd, inheritance
I ported Google RE2, a regular expression library, to SPVM as Resource::Re2, and created SPVM::Regex, a wrapper for it.
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SPVM::File::Basename is released. This is the first module of SPVM using regular expressions.
I searched for I found that there is a Perl compatible regular expression called Google RE2. It is written in C++, and with Google RE2, I can use Perl-compatible regular expressions as a library.
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Ruby 3.2.0 Is from Another Dimension
Yes, but there is an interesting clarification here. RE2 has used the "caching" approach documented in the Ruby bug ticket linked for quite some time (since its birth?): https://github.com/google/re2/blob/954656f47fe8fb505d4818da1...
It is mentioned only briefly in Cox's article on regex matching in the wild. Look for the word "bitstate": https://swtch.com/~rsc/regexp/regexp3.html
I didn't know Perl had implemented this trick too.
The paper[1] cited in the Ruby bug ticket was published very recently. When I first read the Ruby bug ticket, I immediately wondered how they sidestepped the memory use problem. The paper's abstract seems to suggest there is some technique for doing so, as it rebuffs the idea of doing "full" memoization. Alas, I do not have access the paper. (Which is fucking ridiculous.)
[1]: https://ieeexplore.ieee.org/abstract/document/9519427
ZXing
- What's the best way to generate a QR code?
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How to build an Ionic Barcode Scanner with Capacitor
The biggest difference between the two plugins is the SDK used to recognise the barcodes. The Capacitor Community Barcode Scanner plugin currently uses the ZXing decoder and the Capacitor ML Kit Barcode Scanning plugin uses the ML Kit from Google.
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Does anyone have scanning a QR code from a webcam to a text field in an Access form working and be willing to share the source? Thanks
This is using Excel, but it is still VBA, https://www.youtube.com/watch?v=NIFjw8z__dI they're utilizing a third-party library called ZXing which is available on GitHub https://github.com/zxing/zxing
- The Basics of how QR codes work
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Cross-Platform(Android, IOS, Desktop)Barcode scanner package that allows for continuous barcode scanning
I'm sure it works, but thezxing github project appears in maintenance mode, so I'm not sure i should use it in a new project
- Tool Request: Investigate QR Codes in emails
- Guest WiFi using a QR code
- Fdrio · Issue #1539 · zxing/zxing · GitHub
- Zebra Crossing
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How to decode a QR-code image in (preferably pure) Python?
PyXing (website here) is supposedly a Python port of the popular Java ZXing library, but the initial and only commit is 6 years old and the project has no readme or documentation whatsoever.
What are some alternatives?
compile-time-regular-expressions - Compile Time Regular Expression in C++
ZBar - Clone of the mercurial repository http://zbar.hg.sourceforge.net:8000/hgroot/zbar/zbar
semver.c - Semantic version in ANSI C
mlkit - A collection of sample apps to demonstrate how to use Google's ML Kit APIs on Android and iOS
Boost.Signals - Boost.org signals2 module
android-ocr
libevil - The Evil License Manager
C++ Format - A modern formatting library
constexpr-8cc - Compile-time C Compiler implemented as C++14 constant expressions
Tess4J - Java JNA wrapper for Tesseract OCR API
Cppcheck - static analysis of C/C++ code
Code Scanner - Code scanner library for Android, based on ZXing