Added isTaxID implementation, test cases and updated readme for 'en-IN'

README.md

@@ -164,7 +164,7 @@ Validator                               | Description
 **isUppercase(str)**                    | check if the string is uppercase.
 **isSlug**                              | Check if the string is of type slug. `Options` allow a single hyphen between string. e.g. [`cn-cn`, `cn-c-c`]
 **isStrongPassword(str [, options])**   | Check if a password is strong or not. Allows for custom requirements or scoring rules. If `returnScore` is true, then the function returns an integer score for the password rather than a boolean.<br/>Default options: <br/>`{ minLength: 8, minLowercase: 1, minUppercase: 1, minNumbers: 1, minSymbols: 1, returnScore: false, pointsPerUnique: 1, pointsPerRepeat: 0.5, pointsForContainingLower: 10, pointsForContainingUpper: 10, pointsForContainingNumber: 10, pointsForContainingSymbol: 10 }`
-**isTaxID(str, locale)**                | Check if the given value is a valid Tax Identification Number. Default locale is `en-US`.<br/><br/>More info about exact TIN support can be found in `src/lib/isTaxID.js`<br/><br/>Supported locales: `[ 'bg-BG', 'cs-CZ', 'de-AT', 'de-DE', 'dk-DK', 'el-CY', 'el-GR', 'en-CA', 'en-GB', 'en-IE', 'en-US', 'es-ES', 'et-EE', 'fi-FI', 'fr-BE', 'fr-CA', 'fr-FR', 'fr-LU', 'hr-HR', 'hu-HU', 'it-IT', 'lb-LU', 'lt-LT', 'lv-LV' 'mt-MT', 'nl-BE', 'nl-NL', 'pl-PL', 'pt-BR', 'pt-PT', 'ro-RO', 'sk-SK', 'sl-SI', 'sv-SE' ]`
+**isTaxID(str, locale)**                | Check if the given value is a valid Tax Identification Number. Default locale is `en-US`.<br/><br/>More info about exact TIN support can be found in `src/lib/isTaxID.js`<br/><br/>Supported locales: `[ 'bg-BG', 'cs-CZ', 'de-AT', 'de-DE', 'dk-DK', 'el-CY', 'el-GR', 'en-CA', 'en-GB', 'en-IE', 'en-IN', 'en-US', 'es-ES', 'et-EE', 'fi-FI', 'fr-BE', 'fr-CA', 'fr-FR', 'fr-LU', 'hr-HR', 'hu-HU', 'it-IT', 'lb-LU', 'lt-LT', 'lv-LV' 'mt-MT', 'nl-BE', 'nl-NL', 'pl-PL', 'pt-BR', 'pt-PT', 'ro-RO', 'sk-SK', 'sl-SI', 'sv-SE' ]`
 **isURL(str [, options])**              | check if the string is an URL.<br/><br/>`options` is an object which defaults to `{ protocols: ['http','https','ftp'], require_tld: true, require_protocol: false, require_host: true, require_port: false, require_valid_protocol: true, allow_underscores: false, host_whitelist: false, host_blacklist: false, allow_trailing_dot: false, allow_protocol_relative_urls: false, allow_fragments: true, allow_query_components: true, disallow_auth: false, validate_length: true }`.<br/><br/>require_protocol - if set as true isURL will return false if protocol is not present in the URL.<br/>require_valid_protocol - isURL will check if the URL's protocol is present in the protocols option.<br/>protocols - valid protocols can be modified with this option.<br/>require_host - if set as false isURL will not check if host is present in the URL.<br/>require_port - if set as true isURL will check if port is present in the URL.<br/>allow_protocol_relative_urls - if set as true protocol relative URLs will be allowed.<br/>allow_fragments - if set as false isURL will return false if fragments are present.<br/>allow_query_components - if set as false isURL will return false if query components are present.<br/>validate_length - if set as false isURL will skip string length validation (2083 characters is IE max URL length).
 **isUUID(str [, version])**             | check if the string is a UUID (version 1, 2, 3, 4 or 5).
 **isVariableWidth(str)**                | check if the string contains a mixture of full and half-width chars.

src/lib/isTaxID.js

@@ -1136,6 +1136,7 @@ const taxIdFormat = {
   'en-CA': /^\d{9}$/,
   'en-GB': /^\d{10}$|^(?!GB|NK|TN|ZZ)(?![DFIQUV])[A-Z](?![DFIQUVO])[A-Z]\d{6}[ABCD ]$/i,
   'en-IE': /^\d{7}[A-W][A-IW]{0,1}$/i,
+  'en-IN': /^[A-Z]{3}[ABCFGHLJPT][A-Z][0-9]{4}[A-Z]$/,
   'en-US': /^\d{2}[- ]{0,1}\d{7}$/,
   'es-ES': /^(\d{0,8}|[XYZKLM]\d{7})[A-HJ-NP-TV-Z]$/i,
   'et-EE': /^[1-6]\d{6}(00[1-9]|0[1-9][0-9]|[1-6][0-9]{2}|70[0-9]|710)\d$/,

test/validators.js

@@ -11621,6 +11621,21 @@ describe('Validators', () => {
         '1234577A',
         '1234577JA'],
     });
+    test({
+      validator: 'isTaxID',
+      args: ['en-IN'],
+      valid: [
+        'AAAAA1111A',
+        'BBBBB1111B',
+        'CCCCC1111C',
+        'FFFFF0001F',
+        'ZZZFZ9999Z'],
+      invalid: [
+        'DDDDD1111D',
+        '1234567890',
+        'ABCDEFGHIJ',
+        'ABCDE1234F'],
+    });
     test({
       validator: 'isTaxID',
       args: ['en-US'],