From e2a9edb4ca01c8c0708e077d04ea473f49d9a87d Mon Sep 17 00:00:00 2001
From: aladin002dz <mahfoudh.arous@gmail.com>
Date: Thu, 12 Oct 2023 15:28:21 +0100
Subject: [PATCH] validate input string with regex

---
 L-I/0011 RegexInputValidation/README.md       | 46 ++++++++++++
 L-I/0011 RegexInputValidation/jest.config.js  |  1 +
 .../regexInputValidation_algorithm.js         | 15 ++++
 .../regexInputValidation_algorithm.test.js    | 73 +++++++++++++++++++
 4 files changed, 135 insertions(+)
 create mode 100644 L-I/0011 RegexInputValidation/README.md
 create mode 100644 L-I/0011 RegexInputValidation/jest.config.js
 create mode 100644 L-I/0011 RegexInputValidation/regexInputValidation_algorithm.js
 create mode 100644 L-I/0011 RegexInputValidation/regexInputValidation_algorithm.test.js

diff --git a/L-I/0011 RegexInputValidation/README.md b/L-I/0011 RegexInputValidation/README.md
new file mode 100644
index 0000000..289292a
--- /dev/null
+++ b/L-I/0011 RegexInputValidation/README.md	
@@ -0,0 +1,46 @@
+# Regex Input Validation
+
+## Problem
+
+Write a function in JavaScript to validate inputs using regex, taking two parameters: input string and type (email, name, address, zip code, tel).
+
+## Solution
+
+```javascript
+function validateInput(input, type) {
+  // Create a regular expression for the given type
+  const regex = {
+    email:
+      /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/,
+    name: /^[a-zA-Z]+(?:\s[a-zA-Z]+)*$/,
+    address: /^[a-zA-Z0-9\s,.'-]+$/,
+    "zip code": /^\d{5}(-\d{4})?$/,
+    tel: /^\d{10}$/,
+  };
+
+  // Test the input against the regular expression
+  return regex[type].test(input);
+}
+```
+
+## How it works
+
+- The function takes two parameters: input string and type (email, name, address, zip code, tel).
+- It creates a regular expression for the given type using the regex object.
+- It tests the input against the regular expression using the test() method.
+- It returns true if the input is valid, and false otherwise.
+
+## References
+
+Regular expressions in JavaScript: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
+
+## Problem Added By
+
+- [GitHub](https://github.com/aladin002dz)
+- [LinkedIn](https://www.linkedin.com/in/mahfoudh-arous/)
+
+## Contributing
+
+Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
+
+Please make sure to update tests as appropriate.
diff --git a/L-I/0011 RegexInputValidation/jest.config.js b/L-I/0011 RegexInputValidation/jest.config.js
new file mode 100644
index 0000000..6f31cf5
--- /dev/null
+++ b/L-I/0011 RegexInputValidation/jest.config.js	
@@ -0,0 +1 @@
+{ }
\ No newline at end of file
diff --git a/L-I/0011 RegexInputValidation/regexInputValidation_algorithm.js b/L-I/0011 RegexInputValidation/regexInputValidation_algorithm.js
new file mode 100644
index 0000000..c7a1ab5
--- /dev/null
+++ b/L-I/0011 RegexInputValidation/regexInputValidation_algorithm.js	
@@ -0,0 +1,15 @@
+function validateInput(input, type) {
+  // Create a regular expression for the given type
+  const regex = {
+    "email": /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/,
+    "name": /^[A-Z][A-Za-zéç]+(\s[A-Z][A-Za-zéç]+)*$/,
+    "address": /^[A-Za-z0-9éç°',]+(\s[A-Za-z0-9éç°',]+)*$/,
+    "zip code": /^\d{5}(-\d{4})?$/,
+    "tel": /^\d{3}-\d{3}-\d{4}$/
+  };
+
+  // Test the input against the regular expression
+  return regex[type].test(input);
+}
+
+module.exports = validateInput;
\ No newline at end of file
diff --git a/L-I/0011 RegexInputValidation/regexInputValidation_algorithm.test.js b/L-I/0011 RegexInputValidation/regexInputValidation_algorithm.test.js
new file mode 100644
index 0000000..be46d3a
--- /dev/null
+++ b/L-I/0011 RegexInputValidation/regexInputValidation_algorithm.test.js	
@@ -0,0 +1,73 @@
+const validateInput = require('./regexInputValidation_algorithm')
+
+describe('validateInput()', () => {
+    test('should validate a valid email address', () => {
+        const email = 'test@example.com';
+        const isValidEmail = validateInput(email, 'email');
+
+        expect(isValidEmail).toBe(true);
+    });
+
+    test('should not validate an invalid email address', () => {
+        const email = 'test@example';
+        const isValidEmail = validateInput(email, 'email');
+
+        expect(isValidEmail).toBe(false);
+    });
+
+    test('should validate a valid name', () => {
+        const name = 'John Doe';
+        const isValidName = validateInput(name, 'name');
+
+        expect(isValidName).toBe(true);
+    });
+
+    test('should not validate an invalid name', () => {
+        const name = '12345';
+        const isValidName = validateInput(name, 'name');
+
+        expect(isValidName).toBe(false);
+    });
+
+    test('should validate a valid address', () => {
+        const address = '123 Main Street, Anytown, CA 91234';
+        const isValidAddress = validateInput(address, 'address');
+
+        expect(isValidAddress).toBe(true);
+    });
+
+    test('should not validate an invalid address', () => {
+        const address = '   ';
+        const isValidAddress = validateInput(address, 'address');
+
+        expect(isValidAddress).toBe(false);
+    });
+
+    test('should validate a valid zip code', () => {
+        const zipCode = '91234';
+        const isValidZipCode = validateInput(zipCode, 'zip code');
+
+        expect(isValidZipCode).toBe(true);
+    });
+
+    test('should not validate an invalid zip code', () => {
+        const zipCode = '123456';
+        const isValidZipCode = validateInput(zipCode, 'zip code');
+
+        expect(isValidZipCode).toBe(false);
+    });
+
+    test('should validate a valid telephone number', () => {
+        const telephoneNumber = '123-456-7890';
+        const isValidTelephoneNumber = validateInput(telephoneNumber, 'tel');
+
+        expect(isValidTelephoneNumber).toBe(true);
+    });
+
+    test('should not validate an invalid telephone number', () => {
+        const telephoneNumber = '123-456';
+        const isValidTelephoneNumber = validateInput(telephoneNumber, 'tel');
+
+        expect(isValidTelephoneNumber).toBe(false);
+    });
+});