Merge pull request #578 from psampaz/validations_list

Add list of baked in validations in README.md

Author: Dean Karn

README.md

@@ -12,9 +12,9 @@ Package validator implements value validations for structs and individual fields
 
 It has the following **unique** features:
 
--   Cross Field and Cross Struct validations by using validation tags or custom validators.  
+-   Cross Field and Cross Struct validations by using validation tags or custom validators.
 -   Slice, Array and Map diving, which allows any or all levels of a multidimensional field to be validated.
--   Ability to dive into both map keys and values for validation  
+-   Ability to dive into both map keys and values for validation
 -   Handles type interface by determining it's underlying type prior to validation.
 -   Handles custom field types such as sql driver Valuer see [Valuer](https://golang.org/src/database/sql/driver/types.go?s=1210:1293#L29)
 -   Alias validation tags, which allows for mapping of several validations to a single tag for easier defining of validations on structs
@@ -64,6 +64,145 @@ Please see https://godoc.org/github.com/go-playground/validator for detailed usa
 - [Gin upgrade and/or override validator](https://github.com/go-playground/validator/tree/v9/_examples/gin-upgrading-overriding)
 - [wash - an example application putting it all together](https://github.com/bluesuncorp/wash)
 
+Baked-in Validations
+------
+
+### Fields:
+
+| Tag | Description |
+| - | - |
+| eqcsfield | Field Equals Another Field (relative)|
+| eqfield | Field Equals Another Field |
+| fieldcontains | NOT DOCUMENTED IN doc.go |
+| fieldexcludes | NOT DOCUMENTED IN doc.go |
+| gtcsfield | Field Greater Than Another Relative Field |
+| gtecsfield | Field Greater Than or Equal To Another Relative Field |
+| gtefield | Field Greater Than or Equal To Another Field |
+| gtfield | Field Greater Than Another Field |
+| ltcsfield | Less Than Another Relative Field |
+| ltecsfield | Less Than or Equal To Another Relative Field |
+| ltefield | Less Than or Equal To Another Field |
+| ltfield | Less Than Another Field |
+| necsfield | Field Does Not Equal Another Field (relative) |
+| nefield | Field Does Not Equal Another Field |
+
+### Network:
+
+| Tag | Description |
+| - | - |
+| cidr | Classless Inter-Domain Routing CIDR |
+| cidrv4 | Classless Inter-Domain Routing CIDRv4 |
+| cidrv6 | Classless Inter-Domain Routing CIDRv6 |
+| datauri | Data URL |
+| fqdn | Full Qualified Domain Name (FQDN) |
+| hostname | Hostname RFC 952 |
+| hostname_port | HostPort |
+| hostname_rfc1123 | Hostname RFC 1123 |
+| ip | Internet Protocol Address IP |
+| ip4_addr | Internet Protocol Address IPv4 |
+| ip6_addr |Internet Protocol Address IPv6 |
+| ip_addr | Internet Protocol Address IP |
+| ipv4 | Internet Protocol Address IPv4 |
+| ipv6 | Internet Protocol Address IPv6 |
+| mac | Media Access Control Address MAC |
+| tcp4_addr | Transmission Control Protocol Address TCPv4 |
+| tcp6_addr | Transmission Control Protocol Address TCPv6 |
+| tcp_addr | Transmission Control Protocol Address TCP |
+| udp4_addr | User Datagram Protocol Address UDPv4 |
+| udp6_addr | User Datagram Protocol Address UDPv6 |
+| udp_addr | User Datagram Protocol Address UDP |
+| unix_addr | Unix domain socket end point Address |
+| uri | URI String |
+| url | URL String |
+| url_encoded | URL Encoded |
+| urn_rfc2141 | Urn RFC 2141 String |
+
+### Strings:
+
+| Tag | Description |
+| - | - |
+| alpha | Alpha Only |
+| alphanum | Alphanumeric |
+| alphanumunicode | Alphanumeric Unicode |
+| alphaunicode | Alpha Unicode |
+| ascii | ASCII |
+| contains | Contains |
+| containsany | Contains Any |
+| containsrune | Contains Rune |
+| lowercase | Lowercase |
+| multibyte | Multi-Byte Characters |
+| number | NOT DOCUMENTED IN doc.go |
+| numeric | Numeric |
+| printascii | Printable ASCII |
+| startswith | Starts With |
+| uppercase | Uppercase |
+
+### Format:
+| Tag | Description |
+| - | - |
+| base64 | Base64 String |
+| base64url | Base64URL String |
+| btc_addr | Bitcoin Address |
+| btc_addr_bech32 | Bitcoin Bech32 Address (segwit) |
+| datetime | Datetime |
+| email | E-mail String
+| eth_addr | Ethereum Address |
+| hexadecimal | Hexadecimal String |
+| hexcolor | Hexcolor String |
+| hsl | HSL String |
+| hsla | HSLA String |
+| html | HTML Tags |
+| html_encoded | HTML Encoded |
+| isbn | International Standard Book Number |
+| isbn10 | International Standard Book Number 10 |
+| isbn13 | International Standard Book Number 13 |
+| json | JSON |
+| latitude | Latitude |
+| longitude | Longitude |
+| rgb | RGB String |
+| rgba | RGBA String |
+| ssn | Social Security Number SSN |
+| uuid | Universally Unique Identifier UUID |
+| uuid3 | Universally Unique Identifier UUID v3 |
+| uuid3_rfc4122 | Universally Unique Identifier UUID v3 RFC4122 |
+| uuid4 | Universally Unique Identifier UUID v4 |
+| uuid4_rfc4122 | Universally Unique Identifier UUID v4 RFC4122 |
+| uuid5 | Universally Unique Identifier UUID v5 |
+| uuid5_rfc4122 | Universally Unique Identifier UUID v5 RFC4122 |
+| uuid_rfc4122 | Universally Unique Identifier UUID RFC4122 |
+
+### Comparisons:
+| Tag | Description |
+| - | - |
+| eq | Equals |
+| gt | Greater than|
+| gte |Greater than or equal |
+| lt | Less Than |
+| lte | Less Than or Equal |
+| ne | Not Equal |
+
+### Other:
+| Tag | Description |
+| - | - |
+| dir | Directory |
+| e164 | NOT DOCUMENTED IN doc.go |
+| endswith | Ends With |
+| excludes | Excludes |
+| excludesall | Excludes All |
+| excludesrune | Excludes Rune |
+| file | File path |
+| isdefault | Is Default |
+| len | Length |
+| max | Maximum |
+| min | Minimum |
+| oneof | One Of |
+| required | Required |
+| required_with | Required With |
+| required_with_all | Required With All |
+| required_without | Required Without |
+| required_without_all | Required Without All |
+| unique | Unique |
+
 Benchmarks
 ------
 ###### Run on MacBook Pro (15-inch, 2017) go version go1.10.2 darwin/amd64