started rust port of 95_weekday

95_Weekday/rust/Cargo.toml

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+[package]
+name = "rust"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

95_Weekday/rust/README.md

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+Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
+
+Conversion to [Rust](https://www.rust-lang.org/) by Anthony Rubick [AnthonyMichaelTDM](https://github.com/AnthonyMichaelTDM)

95_Weekday/rust/src/main.rs

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+use std::io::{self, stdout, Write};
+
+struct DATE {
+    month: u32,
+    day: u32,
+    year:u32,
+    day_of_week:u32,
+}
+impl DATE {
+    //create one from user input
+    fn new_from_input(prompt:&str) -> DATE {
+        //DATA
+        let mut raw_date: Vec<u32>;
+        //get date
+        //input loop
+        loop {
+            //get user input,
+            raw_date = get_str_from_user(prompt)
+            .split(',')//split it up by ',''s
+            .filter_map(|s| s.parse::<u32>().ok()).collect();//convert it to numbers, ignore things that fail
+            
+            //if they didn't give enough data
+            if raw_date.len() == 3 { //is it long enough? (3 elements)
+                //are each ones valid things?
+                if (1..=12).contains(&raw_date[0]) { //valid month
+                    if (1..=31).contains(&raw_date[1]) { //valid day
+                        break;
+                    }
+                }
+            }
+            //otherwise, print error message and go again
+            println!("Invalid date, try again!");
+        }
+
+        //create date
+        let mut date =DATE{
+            month:raw_date[0],
+            day:raw_date[1],
+            year:raw_date[2],
+            day_of_week: 0 
+        }; 
+        date.update_day_of_week();
+        //return date
+        return date
+    }
+
+    /**
+     * caluclates the day of the week (1-7)
+     */
+    fn update_day_of_week(&mut self) {
+        let month_table:[u32;12] = [0, 3, 3, 6, 1, 4, 6, 2, 5, 0, 3, 5];
+        let i1 = (self.year - 1500) / 100;
+        let a = i1 * 5 + (i1 + 3)/4;
+        let i2 = a - (a/7) * 7;
+        let y2 = self.year/100;
+        let y3 = self.year - y2*100;
+        let a = y3 / 4 + y3 + self.day + month_table[(self.month - 1) as usize] + i2;
+        let  b = a - (a/7) * 7;
+
+        //adjust weekday and set it
+        if self.month <= 2 && self.is_leap_year() {
+            self.day_of_week = b-1;
+        } else {
+            self.day_of_week = b;
+        }
+        if self.day_of_week == 0 {self.day_of_week = 7;}
+
+    }
+
+    /**
+     * is the year a leap_year
+     */
+    fn is_leap_year(&self) -> bool{
+        if self.year % 4 != 0 {
+            return false;
+        } else if self.year %100 != 0 {
+            return true;
+        } else if self.year % 400 != 0 {
+            return false;
+        } else {
+            return true;
+        }
+    }
+}
+fn main() {
+    //DATA
+    let todays_date: DATE;
+    let other_date:DATE;
+
+    //print welcome
+    welcome();
+
+    //get todays date
+    todays_date = DATE::new_from_input("ENTER TODAY'S DATE IN THE FORM: 3,24,1979  ");
+    //check todays date
+    if todays_date.year < 1582 {
+        println!("NOT PREPARED TO GIVE DAY OF WEEK PRIOR TO MDLXXXII.");
+        return;
+    }
+
+    //get other date
+    other_date = DATE::new_from_input("ENTER DAY OF BIRTH (OR OTHER DAY OF INTEREST) (like MM,DD,YYYY)");
+    //check other date
+    if other_date.year < 1582 {
+        println!("NOT PREPARED TO GIVE DAY OF WEEK PRIOR TO MDLXXXII.");
+        return;
+    }
+
+}
+
+
+/**
+ * print welome message
+ */
+fn welcome() {
+    println!("
+                               WEEKDAY
+              CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY
+    
+    
+    
+    WEEKDAY IS A COMPUTER DEMONSTRATION THAT
+    GIVES FACTS ABOUT A DATE OF INTEREST TO YOU.
+    ");
+}
+
+/**
+ * gets a string from user input
+ */
+fn get_str_from_user(prompt:&str) -> String {
+    //DATA
+    let mut raw_input = String::new();
+
+    //print prompt
+    print!("{}",prompt);
+    //flust std out //allows prompt to be on same line as input
+    stdout().flush().expect("failed to flush");
+
+    //get input and trim whitespaces
+    io::stdin().read_line(&mut raw_input).expect("Failed to read input");
+
+    //return raw input
+    return raw_input.trim().to_string();
+}