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@@ -1,4 +1,67 @@ -valua -===== +##Valua - Validation for Lua -A module for making chained validations in Lua. Create your objects, append your tests, use and reuse it! +A module for making chained validations. Create your objects, append your tests, use and reuse it! + +Originally bundled with Sailor MVC Web Framework, now released as a separated module. + https://github.com/Etiene/sailor + +This module provides tools for validating values, very useful in forms, but also usable elsewhere. It works in appended chains. Create a new validation object and start chaining your test functions. If your value fails a test, it breaks the chain and does not evaluate the rest of it. It returns a boolean and an error string (nil when tests succeeded) + +####Usage +Example 1 - Just create, chain and use: +```lua +valua:new().type("string").len(3,5)("test string!") -- false, "should have 3-5 characters" +``` +Example 2 - Create, chain and later use it multiple times: +```lua +local reusable_validation = valua:new().type("string").len(3,5) +reusable_validation("test string!") -- false, "should have 3-5 characters" +reusable_validation("test!") -- true +``` + +####Current validation functions + + * alnum() - +Checks if string is alfanumeric. + * boolean() - +Checks if value is a boolean. + * compare(another_value) - +Checks if value is equal to another value. + * contains(substr) - +Check if a string contains a substring. + * date() or date(format) - +Checks if a string is a valid date. Default format is UK (dd/mm/yyyy). Also checks for US and ISO formats. + * email() - +Checks if a string is a valid email address. + * empty() - +Checks if a value is empty. + * integer() - +Checks if a number is an integer; + * in_list(list) - +Checks if a value is inside an array. + * len(min,max) - +Checks if a string's length is between min and max. + * match(pattern) - +Checks if a string matches a given pattern. + * max(n) - +Checks if a number is equal or less than n. + * min(n) - +Checks if a number is equal or greater than n. + * not_empty() - +Checks if a value is not empty. + * no_white() - +Checks if a string contains no white spaces. + * number() - +Checks if a value is a number. + * string() - +Checks if a value is a string. + * type(t) - +Checks if a value is of type t. + + + +Copyright (c) 2014 Etiene Dalcol + +http://etiene.net + +License: MIT |