argyph-fs 1.0.3

Local-first MCP server giving AI coding agents fast, structured, and semantic context over any codebase.
Documentation 
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/// Language detected from a file extension.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum Language {
    Rust,
    TypeScript,
    Python,
    JavaScript,
    Markdown,
    Json,
    Yaml,
    Toml,
    Csv,
}

impl std::fmt::Display for Language {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            Self::Rust => write!(f, "rust"),
            Self::TypeScript => write!(f, "typescript"),
            Self::Python => write!(f, "python"),
            Self::JavaScript => write!(f, "javascript"),
            Self::Markdown => write!(f, "markdown"),
            Self::Json => write!(f, "json"),
            Self::Yaml => write!(f, "yaml"),
            Self::Toml => write!(f, "toml"),
            Self::Csv => write!(f, "csv"),
        }
    }
}

impl Language {
    /// Detect language from a file extension (without the leading dot).
    ///
    /// Matching is case-sensitive and lowercased. Returns `None` for
    /// unrecognized extensions.
    pub fn from_extension(ext: &str) -> Option<Self> {
        match ext {
            "rs" => Some(Self::Rust),
            "ts" => Some(Self::TypeScript),
            "tsx" => Some(Self::TypeScript),
            "js" => Some(Self::JavaScript),
            "jsx" => Some(Self::JavaScript),
            "py" => Some(Self::Python),
            "md" => Some(Self::Markdown),
            "json" => Some(Self::Json),
            "yaml" | "yml" => Some(Self::Yaml),
            "toml" => Some(Self::Toml),
            "csv" => Some(Self::Csv),
            _ => None,
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn known_extensions() {
        assert_eq!(Language::from_extension("rs"), Some(Language::Rust));
        assert_eq!(Language::from_extension("ts"), Some(Language::TypeScript));
        assert_eq!(Language::from_extension("tsx"), Some(Language::TypeScript));
        assert_eq!(Language::from_extension("js"), Some(Language::JavaScript));
        assert_eq!(Language::from_extension("jsx"), Some(Language::JavaScript));
        assert_eq!(Language::from_extension("py"), Some(Language::Python));
        assert_eq!(Language::from_extension("md"), Some(Language::Markdown));
        assert_eq!(Language::from_extension("json"), Some(Language::Json));
        assert_eq!(Language::from_extension("yaml"), Some(Language::Yaml));
        assert_eq!(Language::from_extension("yml"), Some(Language::Yaml));
        assert_eq!(Language::from_extension("toml"), Some(Language::Toml));
        assert_eq!(Language::from_extension("csv"), Some(Language::Csv));
    }

    #[test]
    fn unknown_extension() {
        assert_eq!(Language::from_extension("png"), None);
        assert_eq!(Language::from_extension(""), None);
    }
}