Lib.rs

› Template engine | Parser implementations | Web programming
#mime #template #html #world #html-text

cans

An elegant and lightweight Rust-based literal template engine for managing web content, enhanced with a world module for streamlined regional and city information, as well as robust MIME type management

Owned by Dr. Montasir.

12 releases (1 stable)

new 1.0.0 Nov 20, 2024
0.9.0 Nov 20, 2024
0.8.0 Nov 18, 2024

#65 in Template engine

Download history 181/week @ 2024-10-09 306/week @ 2024-10-16 287/week @ 2024-10-23 35/week @ 2024-10-30 72/week @ 2024-11-06 310/week @ 2024-11-13

765 downloads per month
Used in gprs

MIT/Apache

110KB
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githubcrates.iodocs.rslicense

CANS

An elegant and lightweight Rust-based literal template engine for managing web content, enhanced with a world module for streamlined regional and city information, as well as robust MIME type management.

Table of Contents

Overview

The CANS templating engine is an elegant and efficient solution developed in Rust, designed for developers who prioritize simplicity and type safety. This crate allows you to create dynamic web pages and applications with minimal boilerplate code, ensuring that your templates are easy to read and maintain.

While CANS is optimized for seamless integration with the GetPost framework, it also provides the flexibility to work with any framework or content type, making it a versatile choice for a wide range of projects.

Changelog

github

Features

  • Simplicity: Easy-to-read syntax that minimizes boilerplate.
  • Type Safety: Leverages Rust's type system for safe template rendering.
  • Dynamic Content: Supports dynamic insertion of values, loops, and conditionals.
  • Integration: Works seamlessly with various web frameworks.

Installation

Run the following Cargo command in your project directory:

cargo add cans

or add cans to your Cargo.toml file:

[dependencies]
cans = "MAJOR.MINOR.PATCH" # Replace with the latest version

Usage

Template

CANS provides robust support for templating, including support for handling HTML, looping through collections, and rendering text. Below are some examples demonstrating how to use the do_html macro, the do_forloop macro, and the do_text function.

Example: Using the do_html Macro

use cans::html::{do_html, do_text};

pub const HEAD: &str = r#"<head>
<meta charset="UTF-8">
    <title>{{page_title}} Page</title>
</head>"#;

pub const HOME_TEMPLATE: &str = r#"<!DOCTYPE html>
<html>
  {{HEAD}}
  <body>
     Home Page
  </body>
</html>"#;

pub fn do_home_page() -> String {
    do_html!(HOME_TEMPLATE, HEAD = HEAD, page_title = do_text("Home"))
}

pub const ABOUT_TEMPLATE: &str = r#"<!DOCTYPE html>
<html>
  {{HEAD}}
  <body>
     <p>About Page</p>
     {{component_if}}
  </body>
</html>"#;

pub fn do_about_page() -> String {
    let component_if: &str;
    let x = 3;

    if x == 1 {
        component_if = "<a href='#'><i>x = 1</i></a>";
    } else if x == 2 {
        component_if = r#"<a href='#'><i>x = {{x}}</i></a>"#;
    } else {
        component_if = "<a href=\"#\"><i>x ≠ 1 & x  ≠ 2. The 'x' value is ( {{x}} )</i></a>";
    };

    do_html!(
        ABOUT_TEMPLATE,
        HEAD = HEAD,
        page_title = do_text("About"),
        component_if = component_if,
        x = x // x must be defined after component_if.
    )
}

fn main() {
   let home_page = do_home_page();
   println!("{}", home_page);

   let about_page = do_about_page();
   println!("{}", about_page);
}

<!-- home page output -->
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>Home Page</title>
  </head>
  <body>
    Home Page
  </body>
</html>

<!-- about page output -->
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>About Page</title>
  </head>
  <body>
    <p>About Page</p>
    <a href="#"><i>x ≠ 1 & x ≠ 2. The 'x' value is ( 3 )</i></a>
  </body>
</html>

Example: Using the do_forloop Function

use cans::html::do_forloop;

fn main() {
    let items = vec!["Apple", "Banana", "Cherry"];
    let list_html = do_forloop(&items, "<ul>", "<li>", "</li>", "</ul>");
    println!("{}", list_html);
    // Output: <ul><li>Apple</li><li>Banana</li><li>Cherry</li></ul>

    let float_vector = vec![1.0, 2.0, 3.0];
    let forloop_float = do_forloop(&float_vector, "", "", "", "");
    println!("{}", forloop_float);
    // Output: 123
}

World Module

A module that encapsulates the management of country details, including functionalities for inserting, deleting, retrieving, and sorting countries. Additionally, it provides features for managing city information within those countries, enabling users to insert, delete, retrieve, and sort city details. This comprehensive management system allows for seamless interaction between countries and their respective cities, facilitating efficient access to geographical and administrative data. Users can efficiently reset the dataset to accommodate new data for testing purposes. The module promotes data integrity and optimal memory management through precise control over entries. It allows for easy querying and manipulation of country and city information to support various applications.

Complete example of using the world module

use cans::world::{City, Country};

fn main() {
    // Create the country manager instance
    let mut cm = Country::new();

    // Example of retrieving all countries
    println!("Current Countries: {:?}", cm.retrieve());

    // Inserting a new country with cities
    cm.insert_one(
        "FR",
        vec!["🇫🇷", "33", "France", "EUR", "Paris"],
        vec![
            City {
                name: "Paris",
                gmt: vec!["GMT+1", "GMT+2"],
                latitude: "48.8566",
                longitude: "2.3522",
                altitude: "35",
            },
            City {
                name: "Lyon",
                gmt: vec!["GMT+1", "GMT+2"],
                latitude: "45.763420",
                longitude: "4.834277",
                altitude: "105",
            },
        ],
    );
    println!("After Inserting FR: {:?}", cm.retrieve());

    // Inserting multiple countries at once
    let new_countries = vec![
        (
            "IT",
            vec!["🇮🇹", "39", "Italy", "EUR", "Rome"],
            vec![
                City {
                    name: "Rome",
                    gmt: vec!["GMT+1", "GMT+2"],
                    latitude: "41.9028",
                    longitude: "12.49637",
                    altitude: "21",
                },
                City {
                    name: "Milan",
                    gmt: vec!["GMT+1", "GMT+2"],
                    latitude: "45.464664",
                    longitude: "9.188540",
                    altitude: "122",
                },
            ],
        ),
        (
            "DE",
            vec!["🇩🇪", "49", "Germany", "EUR", "Berlin"],
            vec![
                City {
                    name: "Berlin",
                    gmt: vec!["GMT+1", "GMT+2"],
                    latitude: "52.520008",
                    longitude: "13.404954",
                    altitude: "34",
                },
                City {
                    name: "Munich",
                    gmt: vec!["GMT+1", "GMT+2"],
                    latitude: "48.137154",
                    longitude: "11.576124",
                    altitude: "520",
                },
            ],
        ),
        (
            "FR",
            vec!["🇫🇷", "33", "France", "EUR", "Paris"],
            vec![
                City {
                    name: "Paris",
                    gmt: vec!["GMT+1", "GMT+2"],
                    latitude: "48.8566",
                    longitude: "2.3522",
                    altitude: "35",
                },
                City {
                    name: "Lyon",
                    gmt: vec!["GMT+1", "GMT+2"],
                    latitude: "45.763420",
                    longitude: "4.834277",
                    altitude: "105",
                },
            ],
        ),
    ];

    // Example of inserting multiple countries
    cm.insert_many(new_countries);
    println!("After Inserting IT, DE and FR: {:?}", cm.retrieve());

    // Sorting countries in ascending order by name
    let sorted_asc = cm.sort_asc();
    println!("Countries Sorted Ascending: {:?}", sorted_asc);

    // Sorting countries in descending order by name
    let sorted_desc = cm.sort_desc();
    println!("Countries Sorted Descending: {:?}", sorted_desc);

    // Example to retrieve details for Sudan
    let name = cm.country_detail("SD", "name");
    println!("Country Name: {}", name); // Output the name of the country
    let flag = cm.country_detail("SD", "flag");
    println!("Flag: {}", flag); // Output the flag of the country
    let country_calling_code = cm.country_detail("SD", "calling_code");
    println!("Calling Code: {}", country_calling_code); // Output the calling code
    let capital = cm.country_detail("SD", "capital");
    println!("Capital: {}", capital); // Output the name of the capital city of Sudan

    // Retrieve the list of cities in Sudan
    let cities = cm.country_detail("SD", "cities");
    println!("Cities: {}", cities); // Output the list of cities in Sudan

    // Example of retrieving city details for Omdurman in Sudan
    let omdurman_details = cm.city_details("SD", "Omdurman");
    println!("Omdurman Details: {}", omdurman_details); // Output the details for Omdurman

    // Example of retrieving specific detail about Khartoum
    let khartoum_gmt = cm.city_detail("SD", "Khartoum", "gmt"); // Example of retrieving GMT for Khartoum
    let omdurman_altitude = cm.city_detail("SD", "Omdurman", "altitude"); // Example of retrieving altitude for Omdurman
    let bahri_altitude = cm.city_detail("SD", "Khartoum Bahri", "altitude"); // Example of retrieving altitude for Khartoum Bahri

    println!("Khartoum GMT: {}", khartoum_gmt);
    println!("Omdurman Altitude: {}", omdurman_altitude);
    println!("Khartoum Bahri Altitude: {}", bahri_altitude);

    // Example of adding a new city to an existing country (Saudi Arabia - "SA")
    let new_city = City {
        name: "Dammam",
        gmt: vec!["GMT+3"],
        latitude: "26.4201",
        longitude: "50.0888",
        altitude: "5",
    };

    // Insert the new city into Saudi Arabia
    cm.insert_one_city("SA", new_city);

    // Retrieving the updated country details to see the new city (altitude = "5")
    let updated_details_1 = cm.retrieve().get("SA").unwrap();
    println!(
        "Updated details (1) for Saudi Arabia: {:?}",
        updated_details_1
    );

    // Example of adding multiple new cities to an existing country (Saudi Arabia - "SA")
    let new_cities = vec![
        City {
            name: "Dammam",
            gmt: vec!["GMT+3"],
            latitude: "26.4201",
            longitude: "50.0888",
            altitude: "6",
        },
        City {
            name: "Khobar",
            gmt: vec!["GMT+3"],
            latitude: "26.3040",
            longitude: "50.1998",
            altitude: "15",
        },
    ];

    // Insert the new cities into Saudi Arabia
    cm.insert_many_cities("SA", new_cities);

    // Retrieving the updated country details to see the new added cities (Dammam: altitude = "6")
    let updated_details_2 = cm.retrieve().get("SA").unwrap();
    println!(
        "Updated details (2) for Saudi Arabia: {:?}",
        updated_details_2
    );
    println!("Current Countries: {:?}", cm.retrieve());

    // Fetching a country not in the database
    let invalid_country_code = "XYZ";
    let invalid_details = cm.country_details(invalid_country_code);
    println!("Invalid Country Details: {}", invalid_details);

    // Deletion examples

    // 1. Delete a single city
    cm.delete_one_city("SA", "Dammam");
    println!(
        "Cities after deleting Dammam: {:?}",
        cm.retrieve().get("SA").unwrap().cities
    );

    // 2. Delete multiple cities
    cm.delete_many_cities("SA", &["Khobar", "Jeddah"]);
    println!(
        "Cities after deleting Khobar and Jeddah: {:?}",
        cm.retrieve().get("SA").unwrap().cities
    );

    // 3. Delete all cities
    cm.delete_all_cities("SA");
    println!(
        "Cities after deleting all cities: {:?}",
        cm.retrieve().get("SA").unwrap().cities
    );

    // Testing delete_one
    cm.delete_one("FR");
    println!("After Deleting FR: {:?}", cm.retrieve());

    // Testing delete_many
    cm.delete_many(&["IT", "DE"]);
    println!("After Deleting IT and DE: {:?}", cm.retrieve());

    // Testing delete_all
    cm.delete_all();
    println!("After Deleting All: {:?}", cm.retrieve());
}

Output

Current Countries: {"DZ": Details { flag: "🇩🇿", calling_code: "213", name: "Algeria", currency: "DZD", capital: "Algiers", cities: [City { name: "Algiers", gmt: ["GMT+1"], latitude: "36.737232", longitude: "3.086472", altitude: "424" }, City { name: "Oran", gmt: ["GMT+1"], latitude: "35.69694440", longitude: "0.63305560", altitude: "0.9" }] }, "GB": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Manchester", gmt: ["GMT+0", "GMT+1"], latitude: "53.4808", longitude: "-2.2426", altitude: "38" }] }, "SD": Details { flag: "🇸🇩", calling_code: "249", name: "Sudan", currency: "SDG", capital: "Khartoum", cities: [City { name: "Khartoum", gmt: ["GMT+2"], latitude: "15.5007", longitude: "32.5599", altitude: "385" }, City { name: "Omdurman", gmt: ["GMT+2"], latitude: "15.6866", longitude: "32.4752", altitude: "375" }, City { name: "Khartoum Bahri", gmt: ["GMT+2"], latitude: "15.6151", longitude: "32.552", altitude: "360" }] }, "SA": Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }, City { name: "Jeddah", gmt: ["GMT+3"], latitude: "21.2854", longitude: "39.2376", altitude: "12" }] }, "BH": Details { flag: "🇧🇭", calling_code: "973", name: "Bahrain", currency: "BHD", capital: "Manama", cities: [City { name: "Manama", gmt: ["GMT+3"], latitude: "26.22787", longitude: "50.58565", altitude: "10" }, City { name: "Riffa", gmt: ["GMT+3"], latitude: "26.129999", longitude: "50.555000", altitude: "15" }] }, "US": Details { flag: "🇺🇸", calling_code: "1", name: "United States", currency: "USD", capital: "Washington, D.C.", cities: [City { name: "Washington, D.C.", gmt: ["GMT-5", "GMT-4"], latitude: "38.89511", longitude: "-77.03637", altitude: "125" }, City { name: "New York", gmt: ["GMT-5", "GMT-4"], latitude: "40.730610", longitude: "-73.935242", altitude: "10" }] }, "UK": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Birmingham", gmt: ["GMT+0", "GMT+1"], latitude: "52.4862", longitude: "-1.8904", altitude: "150" }] }, "CA": Details { flag: "🇨🇦", calling_code: "1", name: "Canada", currency: "CAD", capital: "Ottawa", cities: [City { name: "Ottawa", gmt: ["GMT-5", "GMT-4"], latitude: "45.4215", longitude: "-75.6972", altitude: "70" }, City { name: "Toronto", gmt: ["GMT-5", "GMT-4"], latitude: "43.65107", longitude: "-79.347015", altitude: "76.5" }] }}
After Inserting FR: {"DZ": Details { flag: "🇩🇿", calling_code: "213", name: "Algeria", currency: "DZD", capital: "Algiers", cities: [City { name: "Algiers", gmt: ["GMT+1"], latitude: "36.737232", longitude: "3.086472", altitude: "424" }, City { name: "Oran", gmt: ["GMT+1"], latitude: "35.69694440", longitude: "0.63305560", altitude: "0.9" }] }, "GB": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Manchester", gmt: ["GMT+0", "GMT+1"], latitude: "53.4808", longitude: "-2.2426", altitude: "38" }] }, "SD": Details { flag: "🇸🇩", calling_code: "249", name: "Sudan", currency: "SDG", capital: "Khartoum", cities: [City { name: "Khartoum", gmt: ["GMT+2"], latitude: "15.5007", longitude: "32.5599", altitude: "385" }, City { name: "Omdurman", gmt: ["GMT+2"], latitude: "15.6866", longitude: "32.4752", altitude: "375" }, City { name: "Khartoum Bahri", gmt: ["GMT+2"], latitude: "15.6151", longitude: "32.552", altitude: "360" }] }, "SA": Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }, City { name: "Jeddah", gmt: ["GMT+3"], latitude: "21.2854", longitude: "39.2376", altitude: "12" }] }, "BH": Details { flag: "🇧🇭", calling_code: "973", name: "Bahrain", currency: "BHD", capital: "Manama", cities: [City { name: "Manama", gmt: ["GMT+3"], latitude: "26.22787", longitude: "50.58565", altitude: "10" }, City { name: "Riffa", gmt: ["GMT+3"], latitude: "26.129999", longitude: "50.555000", altitude: "15" }] }, "FR": Details { flag: "🇫🇷", calling_code: "33", name: "France", currency: "EUR", capital: "Paris", cities: [City { name: "Paris", gmt: ["GMT+1", "GMT+2"], latitude: "48.8566", longitude: "2.3522", altitude: "35" }, City { name: "Lyon", gmt: ["GMT+1", "GMT+2"], latitude: "45.763420", longitude: "4.834277", altitude: "105" }] }, "US": Details { flag: "🇺🇸", calling_code: "1", name: "United States", currency: "USD", capital: "Washington, D.C.", cities: [City { name: "Washington, D.C.", gmt: ["GMT-5", "GMT-4"], latitude: "38.89511", longitude: "-77.03637", altitude: "125" }, City { name: "New York", gmt: ["GMT-5", "GMT-4"], latitude: "40.730610", longitude: "-73.935242", altitude: "10" }] }, "UK": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Birmingham", gmt: ["GMT+0", "GMT+1"], latitude: "52.4862", longitude: "-1.8904", altitude: "150" }] }, "CA": Details { flag: "🇨🇦", calling_code: "1", name: "Canada", currency: "CAD", capital: "Ottawa", cities: [City { name: "Ottawa", gmt: ["GMT-5", "GMT-4"], latitude: "45.4215", longitude: "-75.6972", altitude: "70" }, City { name: "Toronto", gmt: ["GMT-5", "GMT-4"], latitude: "43.65107", longitude: "-79.347015", altitude: "76.5" }] }}
After Inserting IT, DE and FR: {"DZ": Details { flag: "🇩🇿", calling_code: "213", name: "Algeria", currency: "DZD", capital: "Algiers", cities: [City { name: "Algiers", gmt: ["GMT+1"], latitude: "36.737232", longitude: "3.086472", altitude: "424" }, City { name: "Oran", gmt: ["GMT+1"], latitude: "35.69694440", longitude: "0.63305560", altitude: "0.9" }] }, "GB": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Manchester", gmt: ["GMT+0", "GMT+1"], latitude: "53.4808", longitude: "-2.2426", altitude: "38" }] }, "SD": Details { flag: "🇸🇩", calling_code: "249", name: "Sudan", currency: "SDG", capital: "Khartoum", cities: [City { name: "Khartoum", gmt: ["GMT+2"], latitude: "15.5007", longitude: "32.5599", altitude: "385" }, City { name: "Omdurman", gmt: ["GMT+2"], latitude: "15.6866", longitude: "32.4752", altitude: "375" }, City { name: "Khartoum Bahri", gmt: ["GMT+2"], latitude: "15.6151", longitude: "32.552", altitude: "360" }] }, "SA": Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }, City { name: "Jeddah", gmt: ["GMT+3"], latitude: "21.2854", longitude: "39.2376", altitude: "12" }] }, "BH": Details { flag: "🇧🇭", calling_code: "973", name: "Bahrain", currency: "BHD", capital: "Manama", cities: [City { name: "Manama", gmt: ["GMT+3"], latitude: "26.22787", longitude: "50.58565", altitude: "10" }, City { name: "Riffa", gmt: ["GMT+3"], latitude: "26.129999", longitude: "50.555000", altitude: "15" }] }, "FR": Details { flag: "🇫🇷", calling_code: "33", name: "France", currency: "EUR", capital: "Paris", cities: [City { name: "Paris", gmt: ["GMT+1", "GMT+2"], latitude: "48.8566", longitude: "2.3522", altitude: "35" }, City { name: "Lyon", gmt: ["GMT+1", "GMT+2"], latitude: "45.763420", longitude: "4.834277", altitude: "105" }] }, "IT": Details { flag: "🇮🇹", calling_code: "39", name: "Italy", currency: "EUR", capital: "Rome", cities: [City { name: "Rome", gmt: ["GMT+1", "GMT+2"], latitude: "41.9028", longitude: "12.49637", altitude: "21" }, City { name: "Milan", gmt: ["GMT+1", "GMT+2"], latitude: "45.464664", longitude: "9.188540", altitude: "122" }] }, "DE": Details { flag: "🇩🇪", calling_code: "49", name: "Germany", currency: "EUR", capital: "Berlin", cities: [City { name: "Berlin", gmt: ["GMT+1", "GMT+2"], latitude: "52.520008", longitude: "13.404954", altitude: "34" }, City { name: "Munich", gmt: ["GMT+1", "GMT+2"], latitude: "48.137154", longitude: "11.576124", altitude: "520" }] }, "US": Details { flag: "🇺🇸", calling_code: "1", name: "United States", currency: "USD", capital: "Washington, D.C.", cities: [City { name: "Washington, D.C.", gmt: ["GMT-5", "GMT-4"], latitude: "38.89511", longitude: "-77.03637", altitude: "125" }, City { name: "New York", gmt: ["GMT-5", "GMT-4"], latitude: "40.730610", longitude: "-73.935242", altitude: "10" }] }, "UK": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Birmingham", gmt: ["GMT+0", "GMT+1"], latitude: "52.4862", longitude: "-1.8904", altitude: "150" }] }, "CA": Details { flag: "🇨🇦", calling_code: "1", name: "Canada", currency: "CAD", capital: "Ottawa", cities: [City { name: "Ottawa", gmt: ["GMT-5", "GMT-4"], latitude: "45.4215", longitude: "-75.6972", altitude: "70" }, City { name: "Toronto", gmt: ["GMT-5", "GMT-4"], latitude: "43.65107", longitude: "-79.347015", altitude: "76.5" }] }}
Countries Sorted Ascending: [Details { flag: "🇩🇿", calling_code: "213", name: "Algeria", currency: "DZD", capital: "Algiers", cities: [City { name: "Algiers", gmt: ["GMT+1"], latitude: "36.737232", longitude: "3.086472", altitude: "424" }, City { name: "Oran", gmt: ["GMT+1"], latitude: "35.69694440", longitude: "0.63305560", altitude: "0.9" }] }, Details { flag: "🇧🇭", calling_code: "973", name: "Bahrain", currency: "BHD", capital: "Manama", cities: [City { name: "Manama", gmt: ["GMT+3"], latitude: "26.22787", longitude: "50.58565", altitude: "10" }, City { name: "Riffa", gmt: ["GMT+3"], latitude: "26.129999", longitude: "50.555000", altitude: "15" }] }, Details { flag: "🇨🇦", calling_code: "1", name: "Canada", currency: "CAD", capital: "Ottawa", cities: [City { name: "Ottawa", gmt: ["GMT-5", "GMT-4"], latitude: "45.4215", longitude: "-75.6972", altitude: "70" }, City { name: "Toronto", gmt: ["GMT-5", "GMT-4"], latitude: "43.65107", longitude: "-79.347015", altitude: "76.5" }] }, Details { flag: "🇫🇷", calling_code: "33", name: "France", currency: "EUR", capital: "Paris", cities: [City { name: "Paris", gmt: ["GMT+1", "GMT+2"], latitude: "48.8566", longitude: "2.3522", altitude: "35" }, City { name: "Lyon", gmt: ["GMT+1", "GMT+2"], latitude: "45.763420", longitude: "4.834277", altitude: "105" }] }, Details { flag: "🇩🇪", calling_code: "49", name: "Germany", currency: "EUR", capital: "Berlin", cities: [City { name: "Berlin", gmt: ["GMT+1", "GMT+2"], latitude: "52.520008", longitude: "13.404954", altitude: "34" }, City { name: "Munich", gmt: ["GMT+1", "GMT+2"], latitude: "48.137154", longitude: "11.576124", altitude: "520" }] }, Details { flag: "🇮🇹", calling_code: "39", name: "Italy", currency: "EUR", capital: "Rome", cities: [City { name: "Rome", gmt: ["GMT+1", "GMT+2"], latitude: "41.9028", longitude: "12.49637", altitude: "21" }, City { name: "Milan", gmt: ["GMT+1", "GMT+2"], latitude: "45.464664", longitude: "9.188540", altitude: "122" }] }, Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }, City { name: "Jeddah", gmt: ["GMT+3"], latitude: "21.2854", longitude: "39.2376", altitude: "12" }] }, Details { flag: "🇸🇩", calling_code: "249", name: "Sudan", currency: "SDG", capital: "Khartoum", cities: [City { name: "Khartoum", gmt: ["GMT+2"], latitude: "15.5007", longitude: "32.5599", altitude: "385" }, City { name: "Omdurman", gmt: ["GMT+2"], latitude: "15.6866", longitude: "32.4752", altitude: "375" }, City { name: "Khartoum Bahri", gmt: ["GMT+2"], latitude: "15.6151", longitude: "32.552", altitude: "360" }] }, Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Manchester", gmt: ["GMT+0", "GMT+1"], latitude: "53.4808", longitude: "-2.2426", altitude: "38" }] }, Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Birmingham", gmt: ["GMT+0", "GMT+1"], latitude: "52.4862", longitude: "-1.8904", altitude: "150" }] }, Details { flag: "🇺🇸", calling_code: "1", name: "United States", currency: "USD", capital: "Washington, D.C.", cities: [City { name: "Washington, D.C.", gmt: ["GMT-5", "GMT-4"], latitude: "38.89511", longitude: "-77.03637", altitude: "125" }, City { name: "New York", gmt: ["GMT-5", "GMT-4"], latitude: "40.730610", longitude: "-73.935242", altitude: "10" }] }]
Countries Sorted Descending: [Details { flag: "🇺🇸", calling_code: "1", name: "United States", currency: "USD", capital: "Washington, D.C.", cities: [City { name: "Washington, D.C.", gmt: ["GMT-5", "GMT-4"], latitude: "38.89511", longitude: "-77.03637", altitude: "125" }, City { name: "New York", gmt: ["GMT-5", "GMT-4"], latitude: "40.730610", longitude: "-73.935242", altitude: "10" }] }, Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Manchester", gmt: ["GMT+0", "GMT+1"], latitude: "53.4808", longitude: "-2.2426", altitude: "38" }] }, Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Birmingham", gmt: ["GMT+0", "GMT+1"], latitude: "52.4862", longitude: "-1.8904", altitude: "150" }] }, Details { flag: "🇸🇩", calling_code: "249", name: "Sudan", currency: "SDG", capital: "Khartoum", cities: [City { name: "Khartoum", gmt: ["GMT+2"], latitude: "15.5007", longitude: "32.5599", altitude: "385" }, City { name: "Omdurman", gmt: ["GMT+2"], latitude: "15.6866", longitude: "32.4752", altitude: "375" }, City { name: "Khartoum Bahri", gmt: ["GMT+2"], latitude: "15.6151", longitude: "32.552", altitude: "360" }] }, Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }, City { name: "Jeddah", gmt: ["GMT+3"], latitude: "21.2854", longitude: "39.2376", altitude: "12" }] }, Details { flag: "🇮🇹", calling_code: "39", name: "Italy", currency: "EUR", capital: "Rome", cities: [City { name: "Rome", gmt: ["GMT+1", "GMT+2"], latitude: "41.9028", longitude: "12.49637", altitude: "21" }, City { name: "Milan", gmt: ["GMT+1", "GMT+2"], latitude: "45.464664", longitude: "9.188540", altitude: "122" }] }, Details { flag: "🇩🇪", calling_code: "49", name: "Germany", currency: "EUR", capital: "Berlin", cities: [City { name: "Berlin", gmt: ["GMT+1", "GMT+2"], latitude: "52.520008", longitude: "13.404954", altitude: "34" }, City { name: "Munich", gmt: ["GMT+1", "GMT+2"], latitude: "48.137154", longitude: "11.576124", altitude: "520" }] }, Details { flag: "🇫🇷", calling_code: "33", name: "France", currency: "EUR", capital: "Paris", cities: [City { name: "Paris", gmt: ["GMT+1", "GMT+2"], latitude: "48.8566", longitude: "2.3522", altitude: "35" }, City { name: "Lyon", gmt: ["GMT+1", "GMT+2"], latitude: "45.763420", longitude: "4.834277", altitude: "105" }] }, Details { flag: "🇨🇦", calling_code: "1", name: "Canada", currency: "CAD", capital: "Ottawa", cities: [City { name: "Ottawa", gmt: ["GMT-5", "GMT-4"], latitude: "45.4215", longitude: "-75.6972", altitude: "70" }, City { name: "Toronto", gmt: ["GMT-5", "GMT-4"], latitude: "43.65107", longitude: "-79.347015", altitude: "76.5" }] }, Details { flag: "🇧🇭", calling_code: "973", name: "Bahrain", currency: "BHD", capital: "Manama", cities: [City { name: "Manama", gmt: ["GMT+3"], latitude: "26.22787", longitude: "50.58565", altitude: "10" }, City { name: "Riffa", gmt: ["GMT+3"], latitude: "26.129999", longitude: "50.555000", altitude: "15" }] }, Details { flag: "🇩🇿", calling_code: "213", name: "Algeria", currency: "DZD", capital: "Algiers", cities: [City { name: "Algiers", gmt: ["GMT+1"], latitude: "36.737232", longitude: "3.086472", altitude: "424" }, City { name: "Oran", gmt: ["GMT+1"], latitude: "35.69694440", longitude: "0.63305560", altitude: "0.9" }] }]
Country Name: Sudan
Flag: 🇸🇩
Calling Code: 249
Capital: Khartoum
Cities: [{ "name": "Khartoum", "gmt": ["GMT+2"], "latitude": "15.5007", "longitude": "32.5599", "altitude": "385" }, { "name": "Omdurman", "gmt": ["GMT+2"], "latitude": "15.6866", "longitude": "32.4752", "altitude": "375" }, { "name": "Khartoum Bahri", "gmt": ["GMT+2"], "latitude": "15.6151", "longitude": "32.552", "altitude": "360" }]
Omdurman Details: { "name": "Omdurman", "gmt": ["GMT+2"], "latitude": "15.6866", "longitude": "32.4752", "altitude": "375" }
Khartoum GMT: GMT+2
Omdurman Altitude: 375
Khartoum Bahri Altitude: 360
Updated details (1) for Saudi Arabia: Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }, City { name: "Jeddah", gmt: ["GMT+3"], latitude: "21.2854", longitude: "39.2376", altitude: "12" }, City { name: "Dammam", gmt: ["GMT+3"], latitude: "26.4201", longitude: "50.0888", altitude: "5" }] }
Updated details (2) for Saudi Arabia: Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }, City { name: "Jeddah", gmt: ["GMT+3"], latitude: "21.2854", longitude: "39.2376", altitude: "12" }, City { name: "Dammam", gmt: ["GMT+3"], latitude: "26.4201", longitude: "50.0888", altitude: "6" }, City { name: "Khobar", gmt: ["GMT+3"], latitude: "26.3040", longitude: "50.1998", altitude: "15" }] }
Current Countries: {"DZ": Details { flag: "🇩🇿", calling_code: "213", name: "Algeria", currency: "DZD", capital: "Algiers", cities: [City { name: "Algiers", gmt: ["GMT+1"], latitude: "36.737232", longitude: "3.086472", altitude: "424" }, City { name: "Oran", gmt: ["GMT+1"], latitude: "35.69694440", longitude: "0.63305560", altitude: "0.9" }] }, "GB": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Manchester", gmt: ["GMT+0", "GMT+1"], latitude: "53.4808", longitude: "-2.2426", altitude: "38" }] }, "SD": Details { flag: "🇸🇩", calling_code: "249", name: "Sudan", currency: "SDG", capital: "Khartoum", cities: [City { name: "Khartoum", gmt: ["GMT+2"], latitude: "15.5007", longitude: "32.5599", altitude: "385" }, City { name: "Omdurman", gmt: ["GMT+2"], latitude: "15.6866", longitude: "32.4752", altitude: "375" }, City { name: "Khartoum Bahri", gmt: ["GMT+2"], latitude: "15.6151", longitude: "32.552", altitude: "360" }] }, "SA": Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }, City { name: "Jeddah", gmt: ["GMT+3"], latitude: "21.2854", longitude: "39.2376", altitude: "12" }, City { name: "Dammam", gmt: ["GMT+3"], latitude: "26.4201", longitude: "50.0888", altitude: "6" }, City { name: "Khobar", gmt: ["GMT+3"], latitude: "26.3040", longitude: "50.1998", altitude: "15" }] }, "BH": Details { flag: "🇧🇭", calling_code: "973", name: "Bahrain", currency: "BHD", capital: "Manama", cities: [City { name: "Manama", gmt: ["GMT+3"], latitude: "26.22787", longitude: "50.58565", altitude: "10" }, City { name: "Riffa", gmt: ["GMT+3"], latitude: "26.129999", longitude: "50.555000", altitude: "15" }] }, "FR": Details { flag: "🇫🇷", calling_code: "33", name: "France", currency: "EUR", capital: "Paris", cities: [City { name: "Paris", gmt: ["GMT+1", "GMT+2"], latitude: "48.8566", longitude: "2.3522", altitude: "35" }, City { name: "Lyon", gmt: ["GMT+1", "GMT+2"], latitude: "45.763420", longitude: "4.834277", altitude: "105" }] }, "IT": Details { flag: "🇮🇹", calling_code: "39", name: "Italy", currency: "EUR", capital: "Rome", cities: [City { name: "Rome", gmt: ["GMT+1", "GMT+2"], latitude: "41.9028", longitude: "12.49637", altitude: "21" }, City { name: "Milan", gmt: ["GMT+1", "GMT+2"], latitude: "45.464664", longitude: "9.188540", altitude: "122" }] }, "DE": Details { flag: "🇩🇪", calling_code: "49", name: "Germany", currency: "EUR", capital: "Berlin", cities: [City { name: "Berlin", gmt: ["GMT+1", "GMT+2"], latitude: "52.520008", longitude: "13.404954", altitude: "34" }, City { name: "Munich", gmt: ["GMT+1", "GMT+2"], latitude: "48.137154", longitude: "11.576124", altitude: "520" }] }, "US": Details { flag: "🇺🇸", calling_code: "1", name: "United States", currency: "USD", capital: "Washington, D.C.", cities: [City { name: "Washington, D.C.", gmt: ["GMT-5", "GMT-4"], latitude: "38.89511", longitude: "-77.03637", altitude: "125" }, City { name: "New York", gmt: ["GMT-5", "GMT-4"], latitude: "40.730610", longitude: "-73.935242", altitude: "10" }] }, "UK": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Birmingham", gmt: ["GMT+0", "GMT+1"], latitude: "52.4862", longitude: "-1.8904", altitude: "150" }] }, "CA": Details { flag: "🇨🇦", calling_code: "1", name: "Canada", currency: "CAD", capital: "Ottawa", cities: [City { name: "Ottawa", gmt: ["GMT-5", "GMT-4"], latitude: "45.4215", longitude: "-75.6972", altitude: "70" }, City { name: "Toronto", gmt: ["GMT-5", "GMT-4"], latitude: "43.65107", longitude: "-79.347015", altitude: "76.5" }] }}
Invalid Country Details: { "flag": "", "calling_code": "", "name": "", "capital": "", "currency": "", "cities": [] }
Cities after deleting Dammam: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }, City { name: "Jeddah", gmt: ["GMT+3"], latitude: "21.2854", longitude: "39.2376", altitude: "12" }, City { name: "Khobar", gmt: ["GMT+3"], latitude: "26.3040", longitude: "50.1998", altitude: "15" }]
Cities after deleting Khobar and Jeddah: [City { name: "Riyadh", gmt: ["GMT+3"], latitude: "24.7136", longitude: "46.6753", altitude: "612" }]
Cities after deleting all cities: []
After Deleting FR: {"DZ": Details { flag: "🇩🇿", calling_code: "213", name: "Algeria", currency: "DZD", capital: "Algiers", cities: [City { name: "Algiers", gmt: ["GMT+1"], latitude: "36.737232", longitude: "3.086472", altitude: "424" }, City { name: "Oran", gmt: ["GMT+1"], latitude: "35.69694440", longitude: "0.63305560", altitude: "0.9" }] }, "GB": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Manchester", gmt: ["GMT+0", "GMT+1"], latitude: "53.4808", longitude: "-2.2426", altitude: "38" }] }, "SD": Details { flag: "🇸🇩", calling_code: "249", name: "Sudan", currency: "SDG", capital: "Khartoum", cities: [City { name: "Khartoum", gmt: ["GMT+2"], latitude: "15.5007", longitude: "32.5599", altitude: "385" }, City { name: "Omdurman", gmt: ["GMT+2"], latitude: "15.6866", longitude: "32.4752", altitude: "375" }, City { name: "Khartoum Bahri", gmt: ["GMT+2"], latitude: "15.6151", longitude: "32.552", altitude: "360" }] }, "SA": Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [] }, "BH": Details { flag: "🇧🇭", calling_code: "973", name: "Bahrain", currency: "BHD", capital: "Manama", cities: [City { name: "Manama", gmt: ["GMT+3"], latitude: "26.22787", longitude: "50.58565", altitude: "10" }, City { name: "Riffa", gmt: ["GMT+3"], latitude: "26.129999", longitude: "50.555000", altitude: "15" }] }, "IT": Details { flag: "🇮🇹", calling_code: "39", name: "Italy", currency: "EUR", capital: "Rome", cities: [City { name: "Rome", gmt: ["GMT+1", "GMT+2"], latitude: "41.9028", longitude: "12.49637", altitude: "21" }, City { name: "Milan", gmt: ["GMT+1", "GMT+2"], latitude: "45.464664", longitude: "9.188540", altitude: "122" }] }, "DE": Details { flag: "🇩🇪", calling_code: "49", name: "Germany", currency: "EUR", capital: "Berlin", cities: [City { name: "Berlin", gmt: ["GMT+1", "GMT+2"], latitude: "52.520008", longitude: "13.404954", altitude: "34" }, City { name: "Munich", gmt: ["GMT+1", "GMT+2"], latitude: "48.137154", longitude: "11.576124", altitude: "520" }] }, "US": Details { flag: "🇺🇸", calling_code: "1", name: "United States", currency: "USD", capital: "Washington, D.C.", cities: [City { name: "Washington, D.C.", gmt: ["GMT-5", "GMT-4"], latitude: "38.89511", longitude: "-77.03637", altitude: "125" }, City { name: "New York", gmt: ["GMT-5", "GMT-4"], latitude: "40.730610", longitude: "-73.935242", altitude: "10" }] }, "UK": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Birmingham", gmt: ["GMT+0", "GMT+1"], latitude: "52.4862", longitude: "-1.8904", altitude: "150" }] }, "CA": Details { flag: "🇨🇦", calling_code: "1", name: "Canada", currency: "CAD", capital: "Ottawa", cities: [City { name: "Ottawa", gmt: ["GMT-5", "GMT-4"], latitude: "45.4215", longitude: "-75.6972", altitude: "70" }, City { name: "Toronto", gmt: ["GMT-5", "GMT-4"], latitude: "43.65107", longitude: "-79.347015", altitude: "76.5" }] }}
After Deleting IT and DE: {"DZ": Details { flag: "🇩🇿", calling_code: "213", name: "Algeria", currency: "DZD", capital: "Algiers", cities: [City { name: "Algiers", gmt: ["GMT+1"], latitude: "36.737232", longitude: "3.086472", altitude: "424" }, City { name: "Oran", gmt: ["GMT+1"], latitude: "35.69694440", longitude: "0.63305560", altitude: "0.9" }] }, "GB": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Manchester", gmt: ["GMT+0", "GMT+1"], latitude: "53.4808", longitude: "-2.2426", altitude: "38" }] }, "SD": Details { flag: "🇸🇩", calling_code: "249", name: "Sudan", currency: "SDG", capital: "Khartoum", cities: [City { name: "Khartoum", gmt: ["GMT+2"], latitude: "15.5007", longitude: "32.5599", altitude: "385" }, City { name: "Omdurman", gmt: ["GMT+2"], latitude: "15.6866", longitude: "32.4752", altitude: "375" }, City { name: "Khartoum Bahri", gmt: ["GMT+2"], latitude: "15.6151", longitude: "32.552", altitude: "360" }] }, "SA": Details { flag: "🇸🇦", calling_code: "966", name: "Saudi Arabia", currency: "SAR", capital: "Riyadh", cities: [] }, "BH": Details { flag: "🇧🇭", calling_code: "973", name: "Bahrain", currency: "BHD", capital: "Manama", cities: [City { name: "Manama", gmt: ["GMT+3"], latitude: "26.22787", longitude: "50.58565", altitude: "10" }, City { name: "Riffa", gmt: ["GMT+3"], latitude: "26.129999", longitude: "50.555000", altitude: "15" }] }, "US": Details { flag: "🇺🇸", calling_code: "1", name: "United States", currency: "USD", capital: "Washington, D.C.", cities: [City { name: "Washington, D.C.", gmt: ["GMT-5", "GMT-4"], latitude: "38.89511", longitude: "-77.03637", altitude: "125" }, City { name: "New York", gmt: ["GMT-5", "GMT-4"], latitude: "40.730610", longitude: "-73.935242", altitude: "10" }] }, "UK": Details { flag: "🇬🇧", calling_code: "44", name: "United Kingdom", currency: "GBP", capital: "London", cities: [City { name: "London", gmt: ["GMT+0", "GMT+1"], latitude: "51.509865", longitude: "-0.118092", altitude: "24" }, City { name: "Birmingham", gmt: ["GMT+0", "GMT+1"], latitude: "52.4862", longitude: "-1.8904", altitude: "150" }] }, "CA": Details { flag: "🇨🇦", calling_code: "1", name: "Canada", currency: "CAD", capital: "Ottawa", cities: [City { name: "Ottawa", gmt: ["GMT-5", "GMT-4"], latitude: "45.4215", longitude: "-75.6972", altitude: "70" }, City { name: "Toronto", gmt: ["GMT-5", "GMT-4"], latitude: "43.65107", longitude: "-79.347015", altitude: "76.5" }] }}
After Deleting All: {}

Documentation

For a detailed API reference, visit the CANS Documentation.

Contributing

Contributions are welcome! If you have suggestions or improvements, feel free to submit an issue or a pull request.

License

This project is licensed under the MIT or Apache 2.0 License - see the LICENSE file for details.

Conclusion

Whether you're building a small project or a large application, CANS provides the tools you need to create dynamic and flexible templates with ease. Unlock the potential of CANS to elevate your Rust web development experience!

Donations

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Author

Dr. Montasir Mirghani

No runtime deps