hlg 1.0.1

HLG, or HI, Let's Go!, is a powerful bookmark manager to keep track of your favorites both on the filesystem and the web.
Documentation 
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use serde::Deserialize;

#[derive(Debug, Deserialize, Clone)]
pub struct Format {
    pub name: String,
    pub extensions: Vec<String>,
}

#[derive(Debug, Deserialize, Clone)]
pub struct SpecialPages {
    pub home: Option<String>,
    pub search: Option<String>,
    pub wiki: Option<String>,
}

#[derive(Debug, Deserialize, Clone)]
pub struct Handlers {
    pub browser: Option<String>,
    #[serde(rename = "file-manager")]
    pub file_manager: Option<String>,
    pub command: Option<String>,
}

#[derive(Debug, Deserialize, Clone)]
pub struct DomainCode {
    pub code: char,
    pub value: String,
}

#[derive(Debug, Deserialize, Clone)]
pub struct Settings {
    #[serde(rename = "default-category")]
    pub default_category: Option<String>,

    #[serde(rename = "create-missing-category")]
    pub create_missing_category: Option<bool>,

    pub autoselect: Option<bool>,

    #[serde(rename = "save-with-shortcuts")]
    pub save_with_shortcuts: Option<bool>,

    #[serde(rename = "script-dir")]
    pub script_dir: Option<String>,
    #[serde(rename = "special-pages")]
    pub special_pages: Option<SpecialPages>,
    pub handlers: Option<Handlers>,
    pub formats: Option<Vec<Format>>,
    #[serde(rename = "domain-codes")]
    pub domain_codes: Option<Vec<DomainCode>>,
}

pub enum DataProvider {
    Configuration,
    Bookmarks,
    HelpFile,
}

impl DataProvider {
    pub fn new(filename: &str) -> Self {
        match filename {
            "help" => Self::HelpFile,
            "bookmarks" => Self::Bookmarks,
            "config" => Self::Configuration,
            _ => {
                eprintln!("Unknown data requested");
                std::process::exit(3);
            }
        }
    }

    fn config_data(&self) -> Vec<u8> {
        br#"default-category = "default"
create-missing-category = false
autoselect = true
save-with-shortcuts = true
script-dir = "scripts"

[special-pages]
home = "hi"
search = "google"
wiki = "arch-wiki"

[protocols]
browser = "firefox"
file-manager = "caja"
command = "bash"

[[domain-codes]]
code = "b"
value = "blog"

[[domain-codes]]
code = "w"
value = "wiki"

[[formats]]
name = "vim"
extensions = ["txt","c","conf"]

[[formats]]
name = "libreoffice"
extensions = ["odf","odt","docx","doc","xls","xlsx","ppt","pptx"]

[[formats]]
name = "emacs"
extensions = ["rs","md","asciidoc","adoc","xml"]


[[formats]]
name = "vlc"
extensions = ["m3u","mp4","mpg","m4a","mkv","opus"]

[[formats]]
name = "mpv"
extensions = ["mp3","ogg"]

[[formats]]
name = "firefox"
extensions = ["html"]

[[formats]]
name = "chromium"
extensions = ["mhtml"]
"#
        .to_vec()
    }

    fn help_data(&self) -> Vec<u8> {
        br#"Help file to be placed here"#.to_vec()
    }

    fn bookmark_data(&self) -> Vec<u8> {
        br#"#!<@access-computing.com>
hi: <@hlg{*default}>
blog <@b*>
debian: <@debian.org>
arch: <@archlinux.org>
# A distro that focuses on accessibility
slint: <@=slint.fr/>
watch <@distrowatch.com>
_accessibility <@w{/debian}/accessibility>
_news: <@9to5linux.com/>
linux <@{*wikipedia}/Linux>
itsfoss(s): <@itsfoss.com/>
technix(x): <@ostechnix.com/>
tecmint(m)  <@=tecmint.com/>

docs: <~/Documents>
music: <~/Music>
# The Common Unix Printing Server [cups]
printing <@#631>

# Google search [search find googling]
google? <@google.com>
ddg? <@duckduckgo.com>
bing? <@bing.com>
# The largest source of info on Linux on the web [archie linux-info]
arch-wiki+ <@w{arch}/title>
debian-wiki+ <@w{debian}>
# Free English encyclopedia [reference dictionary wikipedia wiki]
wikipedia+ <@en.wikipedia.org/wiki>

# Tell the time [clock date daytime now]
time: <:!echo "Its `date +%H:%M`"> :bash(-c)
"#
        .to_vec()
    }

    pub fn data(&self) -> Vec<u8> {
        match self {
            Self::Bookmarks => self.bookmark_data(),
            Self::Configuration => self.config_data(),
            Self::HelpFile => self.help_data(),
        }
    }
}