feat: added is_freight_container_id validator

README.md

@@ -70,6 +70,7 @@ Validator                                | Description
 **is_even(str/int)**                    | checks if the input is an even number, it accepts either a string or an int.
 **is_float(str, options)**              | check if the string is a float.<br/><br/>`options` is an dictionary which can contain the keys `min`, `max`, `gt`, and/or `lt` to validate the float is within boundaries (e.g. `{ "min": 7.22, "max": 9.55 }`) it also has `locale` as an option.<br/><br/>`min` and `max` are equivalent to 'greater or equal' and 'less or equal', respectively while `gt` and `lt` are their strict counterparts.<br/><br/>`locale` determine the decimal separator and is one of `['ar', 'ar-AE', 'ar-BH', 'ar-DZ', 'ar-EG', 'ar-IQ', 'ar-JO', 'ar-KW', 'ar-LB', 'ar-LY', 'ar-MA', 'ar-QA', 'ar-QM', 'ar-SA', 'ar-SD', 'ar-SY', 'ar-TN', 'ar-YE', 'bg-BG', 'cs-CZ', 'da-DK', 'de-DE', 'en-AU', 'en-GB', 'en-HK', 'en-IN', 'en-NZ', 'en-US', 'en-ZA', 'en-ZM', 'es-ES', 'fr-CA', 'fr-FR', 'hu-HU', 'it-IT', 'nb-NO', 'nl-NL', 'nn-NO', 'pl-PL', 'pt-BR', 'pt-PT', 'ru-RU', 'sl-SI', 'sr-RS', 'sr-RS@latin', 'sv-SE', 'tr-TR', 'uk-UA']`. Locale list is `validator.isFloatLocales`.
 **is_fqdn(str, options)**               | check if the string is a fully qualified domain name (e.g. domain.com).<br/><br/>`options` is an dictionary which defaults to `{ "require_tld": True, "allow_underscores": False, "allow_trailing_dot": False, "allow_numeric_tld": False, "allow_wildcard": False }`. If `allow_wildcard` is set to *True*, the validator will allow domain starting with `*.` (e.g. `*.example.com` or `*.shop.example.com`).
+**is_freight_container_id(str)** 		| alias for `isISO6346`, check if the string is a valid [ISO 6346](https://en.wikipedia.org/wiki/ISO_6346) shipping container identification.
 **is_full_width(str)**                  | check if the string contains any full-width chars.
 **is_hash(str, algorithm)**             | check if the string is a hash of type algorithm.<br/><br/>Algorithm is one of `['md4', 'md5', 'sha1', 'sha256', 'sha384', 'sha512', 'ripemd128', 'ripemd160', 'tiger128', 'tiger160', 'tiger192', 'crc32', 'crc32b']`
 **is_hexadecimal(str)**                 | check if the string is a hexadecimal number.

pyvalidator/__init__.py

@@ -66,3 +66,4 @@
 from pyvalidator.is_mailto_uri import is_mailto_uri
 from pyvalidator.is_mime_type import is_mime_type
 from pyvalidator.is_iso6391 import is_iso6391
+from pyvalidator.is_freight_container_id import is_freight_container_id

pyvalidator/is_freight_container_id.py

@@ -0,0 +1,34 @@
+import re
+from .utils.assert_string import assert_string
+
+isISO6346Str = re.compile(r'^[A-Z]{3}((U[0-9]{7})|([J,Z][0-9]{6,7}))$')
+isDigit = re.compile(r'^[0-9]$')
+
+def is_freight_container_id(input):
+    input = assert_string(input)
+    input = input.upper()
+
+    if not isISO6346Str.match(input):
+        return False
+
+    if len(input) == 11:
+        _sum = 0
+        for i in range(len(input) - 1):
+            if not isDigit.match(input[i]):
+                letterCode = ord(input[i]) - 55
+                if letterCode < 11:
+                    convertedCode = letterCode
+                elif 11 <= letterCode <= 20:
+                    convertedCode = 12 + (letterCode % 11)
+                elif 21 <= letterCode <= 30:
+                    convertedCode = 23 + (letterCode % 21)
+                else:
+                    convertedCode = 34 + (letterCode % 31)
+                _sum += convertedCode * (2 ** i)
+            else:
+                _sum += int(input[i]) * (2 ** i)
+
+        checkSumDigit = _sum % 11
+        return int(input[-1]) == checkSumDigit
+
+    return True

setup.py

@@ -4,8 +4,8 @@
     readme = f.read()
 
 MAJOR = 0
-MINOR = 19
-PATCH = 1
+MINOR = 20
+PATCH = 0
 
 VERSION = '{}.{}.{}'.format(MAJOR, MINOR, PATCH)
 DESCRIPTION = 'String validation and sanitization'

test/test_is_freight_container_id.py

@@ -0,0 +1,38 @@
+import unittest
+from pyvalidator.is_freight_container_id import is_freight_container_id
+from . import print_test_ok
+
+class TestIsFreightContainerId(unittest.TestCase):
+
+    def test_valid_ISO6346(self):
+        valid_codes = [
+            'HLXU2008419',
+			'TGHU7599330',
+			'ECMU4657496',
+			'MEDU6246078',
+			'YMLU2809976',
+			'MRKU0046221',
+			'EMCU3811879',
+			'OOLU8643084',
+			'HJCU1922713',
+			'QJRZ123456',
+        ]
+        for code in valid_codes:
+            self.assertTrue(is_freight_container_id(code))
+        print_test_ok()
+
+    def test_invalid_ISO6346(self):
+        invalid_codes = [
+            'OOLU1922713',
+			'HJCU1922413',
+			'FCUI985619',
+			'ECMJ4657496',
+			'TBJA7176445',
+			'AFFU5962593',
+        ]
+        for code in invalid_codes:
+            self.assertFalse(is_freight_container_id(code))
+        print_test_ok()
+
+if __name__ == '__main__':
+    unittest.main()