is_utf8 | Check if a given string is a valid utf-8 string

by JulienPalard C Version: Current License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | is_utf8 Summary

is_utf8 is a C library typically used in Utilities applications. is_utf8 has no bugs, it has no vulnerabilities and it has low support. However is_utf8 has a Non-SPDX License. You can download it from GitHub.

isutf8 is a program and a c library to check if a given file (or stdin) contains only valid utf-8 sequences.

Support

Quality

Security

License

Reuse

Support

is_utf8 has a low active ecosystem.

It has 33 star(s) with 17 fork(s). There are 5 watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 4 have been closed. On average issues are closed in 446 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of is_utf8 is current.

Quality

is_utf8 has 0 bugs and 0 code smells.

Security

is_utf8 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

is_utf8 code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

is_utf8 has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

is_utf8 releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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is_utf8 Key Features

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is_utf8 Examples and Code Snippets

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Community Discussions

Trending Discussions on is_utf8

Encoding agnostic parsing with c++2b

Perl: Packing a sequence of bytes into a string

Are ruby strings that return true for #ascii_only? a subset of strings that return true for Activesupport's #is_utf8?

QUESTION

Encoding agnostic parsing with c++2b

Asked 2021-Jul-27 at 18:36

Sometimes I have to parse text files with various encodings, I wonder if the upcoming standard will bring some tools for this because I'm not very happy with my current solution. I'm not even sure if this is the right approach, however I define a functor template to extract a character from stream:

...

ANSWER

Answered 2021-Jul-27 at 18:36

In c++17 we gained type-safe unions. These can be used to map between runtime and compile time state together with std::visit.

Source https://stackoverflow.com/questions/68500368

QUESTION

Perl: Packing a sequence of bytes into a string

Asked 2020-Mar-31 at 13:59

I'm trying to run a simple test whereby I want to have differently formatted binary strings and print them out. In fact, I'm trying to investigate a problem whereby sprintf cannot deal with a wide-character string passed in for the placeholder %s.

In this case, the binary string shall just contain the Cyrillic "д" (because it's above ISO-8859-1)

The code below works when I use the character directly in the source.

But nothing that passes through pack works.

For the UTF-8 case, I need to set the UTF-8 flag on the string $ch , but how.
The UCS-2 case fails, and I suppose it's because there is no way for Perl UCS-2 from ISO-8859-1, so that test is probably bollocks, right?

The code:

...

ANSWER

Answered 2020-Mar-30 at 19:51

You have two problems.

Your calls to pack are incorrect

Each H represents one hex digit.

Source https://stackoverflow.com/questions/60935086

QUESTION

Are ruby strings that return true for #ascii_only? a subset of strings that return true for Activesupport's #is_utf8?

Asked 2020-Feb-15 at 03:46

I have a requirement to determine if a very large number of characters of unknown encoding are utf8. I'm using ActiveSupport #is_utf8?, however it is quite slow because it duplicates the string. I am wondering if I can put a guard clause using #ascii_only. My testing show that this will improve the performance of my utf8? method.

Original method:

...

ANSWER

Answered 2020-Feb-15 at 03:46

Is there a character that will return false for ActiveSupport's String#is_utf8? [and] true for String#ascii_only?

According to the definition of UTF-8, there is no such character.

The first 128 characters of Unicode .. correspond one-to-one with ASCII (https://en.m.wikipedia.org/wiki/UTF-8)

But, do these functions respect this definition? Yes, they do. :)

ascii_only? returns true only for characters 0..127, regardless of which encoding we specify.

Source https://stackoverflow.com/questions/60234473

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install is_utf8

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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