From 2420f1e75d54a5f209b0267715f078a369d81eb1 Mon Sep 17 00:00:00 2001 From: Owen Jacobson Date: Sun, 23 Mar 2025 15:58:33 -0400 Subject: Rename the `login` module to `user`. --- src/user/validate.rs | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 src/user/validate.rs (limited to 'src/user/validate.rs') diff --git a/src/user/validate.rs b/src/user/validate.rs new file mode 100644 index 0000000..0c97293 --- /dev/null +++ b/src/user/validate.rs @@ -0,0 +1,23 @@ +use unicode_segmentation::UnicodeSegmentation as _; + +use crate::name::Name; + +// Picked out of a hat. The power of two is not meaningful. +const NAME_TOO_LONG: usize = 64; + +pub fn name(name: &Name) -> bool { + let display = name.display(); + + [ + display.graphemes(true).count() < NAME_TOO_LONG, + display.chars().all(|ch| !ch.is_control()), + display.chars().next().is_some_and(|c| !c.is_whitespace()), + display.chars().last().is_some_and(|c| !c.is_whitespace()), + display + .chars() + .zip(display.chars().skip(1)) + .all(|(a, b)| !(a.is_whitespace() && b.is_whitespace())), + ] + .into_iter() + .all(|value| value) +} -- cgit v1.2.3