inline markup urls contain invisible invalid characters

[schochastics]

If a url is created as part of an alert (I assume this holds for all message types) via inline markup, there are additional "invisible" characters added to the string that make the url invalid.

library(cli)
test <- "path"
cli_alert("{.url https://example.com/{test}}")
#> → <https://example.com/path>

In both cases you cannot see the invalid characters but when you click the link, it turns into https://example.com/%1B%5B3mpath%1B%5B3m in the browser.

Screenshot when clicking the link in Positron:

[gaborcsardi]

I cannot reproduce this in Positron. What's your Positron version and cli version?

[schochastics]

OS

R version 4.4.2 (2024-10-31)
Platform: aarch64-apple-darwin20
Running under: macOS Sequoia 15.4.1

Positron

Positron Version: 2025.05.0 (Universal) build 75
Code - OSS Version: 1.99.0
Commit: 6af5bd88e7ff43e833efd238a6a9bc077800059a
Date: 2025-04-22T03:29:14.910Z
Electron: 34.3.2
Chromium: 132.0.6834.210
Node.js: 20.18.3
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.4.0

cli

packageVersion("cli")
#> ‘3.6.5’

The example above still produces the wrong url for me. The issue also occurred in RStudio.