Detects whether a terminal supports unicode.

Related tags

Command-line supports-unicode
Overview

Detects whether a terminal supports unicode.

This crate is a Rust port mashing together @sindresorhus' is-unicode-supported and @iarna's has-unicode NPM packages.

Example

use supports_unicode::Stream;

if supports_unicode::on(Stream::Stdout) {
    println!("stdout supports unicode output");
} else {
    println!("no unicode, please");
}
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Comments
  • Ignore case when detecting UTF-8 locales.

    Ignore case when detecting UTF-8 locales.

    I noticed on an Arch Linux installation that miette always used an ASCII character set when printing reports despite the system and terminal emulator supporting Unicode. Upon further inspection, it looks like supports-unicode looks for a case sensitive UTF8 or UTF-8 suffix in locale environment variables, but casing of these values differs between Unix and Linux distributions.

    This change performs a case-insensitive comparison by converting the text to uppercase first. Please take a look! Thanks!

    opened by olson-sean-k 1
  • Cargo build fails on rustc<1.54

    Cargo build fails on rustc<1.54

    Hi,

    could you please add a note in the README.md to successfuly compile the crate rustc>=1.54 is needed?

    The issue is with #![doc = include_str!("../README.md")] since the usage of function-like macros in attributes was not available in the previous versions (unless using nightly).

       Compiling libc v0.2.101
   Compiling atty v0.2.14
   Compiling supports-unicode v1.0.2 (/tmp/guix-build-rust-supports-unicode-1.0.2.drv-0/supports-unicode-1.0.2)
error: unexpected token: `include_str`
 --> src/lib.rs:1:10
  |
1 | #![doc = include_str!("../README.md")]
  |          ^^^^^^^^^^^

error: aborting due to previous error

error: could not compile `supports-unicode`.
    opened by phodina 1
Releases(v1.0.1)
Owner
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rustacean 🦀, @NuGet team 🍫. Formerly @npmjs 😩
Kat Marchán
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