swish_form:validate

True when Value is a valid value for Field from Dict according to Options. Options is a list of processing steps taken to convert and validate the value. Defined steps are:

alnum: All characters must be alphanumeric
alnum_and_spaces: All characters must be alphanumeric or spaces
atom: Convert input to an atom
string: Convert input to a string
default(Term): Use Term as value if no value appears in the input.
downcase: Convert input to lower case
email: Input must be a value E-mail address.
url: Input must be a valid absolute URL
url(Scheme): Input must be a valid absolute URL of type Scheme. Using http also allows for https
float: Value is converted to a floating point number.
integer: Value is converted to an integer.
length>N: The value must have at more than N characters
length>=N: The value must have at least N characters
length=<N: The value must have at most N characters
length<N: The value must have at less than N characters
number: Value is converted to a number (integer or float)
oneof(List): Input must be a member of List.
password: Input must be a reasonable password.
strip: Strip leading and trailing white space and normalize internal white space to a single space.
term: Input is parsed as a Prolog term