CleverSort
A very simple Haxe macro for helping to sort arrays based on multiple properties with a very simple syntax.
Usage
Imagine we have this data:
class Person {
var firstName:String;
var surname:String;
var age:Int;
var postcode:PostCode;
}
class PostCode {
var state:StateEnum;
var number:Int;
}
var array:Array<Person> = ...;Include this at the top of your file, so that we can use the cleverSort() function on any array:
using CleverSort;Example 1:
Sort by surname, firstName, age:
array.cleverSort(
_.firstName.toLowerCase(),
_.surname.toLowerCase(),
_.age
);
// Which is the equivalent of writing
array.sort( function(i1,i2) {
var cmp:Int;
cmp = Reflect.compare(i1.firstName.toLowerCase(),i2.firstName.toLowerCase());
if ( cmp!=0 ) return cmp;
cmp = Reflect.compare(i1.surname.toLowerCase(),i2.surname.toLowerCase());
if ( cmp!=0 ) return cmp;
cmp = Reflect.compare(i1.age,i2.age);
if ( cmp!=0 ) return cmp;
return 0;
});Example 2:
Sort by state, postcode, surname, firstname:
array.cleverSort(
Type.enumConstructor( _.postcode.state ),
_.postcode.number,
_.surname,
_.firstName
);
// Which is the equivalent of writing
array.sort( function(i1,i2) {
var cmp:Int;
cmp = Reflect.compare(Type.enumConstructor(i1.postcode.state),Type.enumConstructor(i2.postcode.state));
if ( cmp!=0 ) return cmp;
cmp = Reflect.compare(i1.postcode.number,i2.postcode.number);
if ( cmp!=0 ) return cmp;
cmp = Reflect.compare(i1.surname,i2.surname);
if ( cmp!=0 ) return cmp;
cmp = Reflect.compare(i1.firstName,i2.firstName);
if ( cmp!=0 ) return cmp;
return 0;
});As you can see, the CleverSort syntax is much cleaner and more readable. Enjoy!
Code released into the Public Domain.
