calepin 0.0.20

A Rust CLI for preprocessing Typst documents with executable code chunks
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use std::path::{Path, PathBuf};

pub fn expand_home(path: PathBuf) -> PathBuf {
    let text = path.to_string_lossy();
    let Some(rest) = text.strip_prefix("~/") else {
        return path;
    };
    std::env::var_os("HOME")
        .map(|home| PathBuf::from(home).join(rest))
        .unwrap_or(path)
}

pub fn is_path_like(path: &Path) -> bool {
    path.components().count() > 1 || path.to_string_lossy().contains('\\')
}

pub fn normalize_path(path: &Path) -> PathBuf {
    let mut out = PathBuf::new();
    for component in path.components() {
        match component {
            std::path::Component::CurDir => {}
            std::path::Component::ParentDir => {
                out.pop();
            }
            _ => out.push(component.as_os_str()),
        }
    }
    out
}