libu8ident
ts-pg-orm
| libu8ident | ts-pg-orm | |
|---|---|---|
| 9 | 2 | |
| 17 | 6 | |
| - | - | |
| 1.8 | 10.0 | |
| 11 months ago | over 1 year ago | |
| C | TypeScript | |
| Apache License 2.0 | MIT License |
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libu8ident
- Roaring bitmaps are compressed bitmaps, can be 100x faster
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International domain names: where does HTTPS://meßagefactory.ca lead you?
In programming languages it's much worse. Identifiers can either be unidentifiable, and if so everybody has a different opinion what "identifiable" means. Even the standard on identifiers, UTF-39, is buggy and has too many interpretations, leading to a complete disaster. https://github.com/rurban/libu8ident/blob/master/doc/c11.md
In punycode domain names it's quite simple still.
With other names, it's even worse. No-one cares. Linkers do not, username and filesystem drivers do not. The Apple HFS+ did care a bit one day, until someone in the higher ranks decided that no-one needs unicode security anymore and switched the new APFS to unsafe again.
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Using Unicode in a compiler
No, it's definitely not safe to use unrestricted Unicode in a compiler. See https://github.com/rurban/libu8ident/ for identifier rules, and http://www.unicode.org/reports/tr55/ for much worse problems.
- Ask HN: What interesting problems are you working on? ( 2022 Edition)
- Unicode Utilities: Confusables
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How can you be fooled by the U+202E trick?
That's why unicode published the security guidelines and mechanisms to avoid such attacks. In 2004 already.
The problem is that nobody cared. Browsers invented punycode instead of following tr39, email ditto. But ok, at least something. Java did it, cperl did, rust did it.
Everybody else is vulnerable. Esp. most other programming languages, filesystems and login systems. https://github.com/rurban/libu8ident/blob/master/doc/c11.md
- Prevent Trojan Source attacks with GCC 12
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Unicode Normalization Forms: When ö = ö
I'm maintaining such a library.
coreutils, diff, grep, patch, sed and friends all cannot find Unicode strings, they have no string support. They can only mimic filesystems, finding binary garbage. Strings are so rthi g different than pure ASCII or BINARY garbage. Strings have an encoding and are Unicode.
Filesystems are even worse because they need to treat filenames as identifiers, but do not. Nobody cares about TR31, TR39, TR36 and so on.
Here is an overview of the sad state of Unicode unsafeties in programming languages: https://github.com/rurban/libu8ident/blob/master/c11.md
- Why does Windows 10 run faster than Fedora?
ts-pg-orm
- Show HN: I made a free open-source TypeScript PostgreSQL ORM
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Ask HN: What interesting problems are you working on? ( 2022 Edition)
* PostgreSQL doesn't have some of the features that you would expect from other DB technologies (i.e. certain table alterations, limit on update and delete, etc.). Weird and wonderful workarounds exist, but it always leaves you thinking _why aren't those workarounds just the de facto way for doing those things?_.
[0] https://github.com/samhuk/ts-pg-orm
What are some alternatives?
Confusables - Simple library for matching a string to another string that is same but has letters that only *look* the same as original string
ebook-reader-dict - Finally decent dictionaries based on Wiktionary for your beloved eBook reader.
featurebase - A crazy fast analytical database, built on bitmaps. Perfect for ML applications. Learn more at: http://docs.featurebase.com/. Start a Docker instance: https://hub.docker.com/r/featurebasedb/featurebase
reals - A lightweight python3 library for arithmetic with real numbers.
libredwg - Official mirror of libredwg. With CI hooks and nightly releases. PR's ok
multiview - 3D computer vision and action recognition research library
safeclib - safec libc extension with all C11 Annex K functions
engine262 - An implementation of ECMA-262 in JavaScript
nbperf - Improved NetBSD's Perfect Hash Generation Tool v3
tone - tone is a cross platform audio tagger and metadata editor to dump and modify metadata for a wide variety of formats, including mp3, m4b, flac and more. It has no dependencies and can be downloaded as single binary for Windows, macOS, Linux and other common platforms.
studio - Robotics visualization and debugging