rp

rp is an abstraction of the programming language php. It has clean syntax, free of some repetitive php elements (such as $), including support for many php functions and segments (called snippets) that help you create files with less code content.

Features

• Simple Syntax
• Normal Object-oriented Features (e.g. class, method calls)
• Highly Portable (works on many Unix-like/POSIX compatible platforms as well as Windows, macOS, Haiku, etc.), i. e. all platforms supported by NodeJS.
• Fast compilation.

Resources

• Install
• Development
• Test
• Examples
• Language Reference
  • Generic
    • Arrays
    • Imports
    • Declare variable
    • Print message
    • Types
    • Try catch
  • Functions
    • Arguments
    • Segments
  • Flow controls
    • If
    • Loops
  • Comments
  • Classes
    • Attributes
  • Segments

Language Reference

rp detects and solves basic mathematical expressions, thus shortening the resulting source code in php.

Generic

Arrays

[
    item -> "Hello",
    item2 -> 23,
]

The equivalent in PHP is:

array(
    item  => ("Hello"),
    item2 => (23)
)

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Imports

The packet import has a pattern similar to php; def instead of function.

use "My\Full\Namespace"
use "My\Full\Namespace" as Namespace
use def "My\Full\Namespace"
use def "My\Full\Namespace" as Namespace

The equivalent in PHP is:

use My\Full\Namespace;
use My\Full\Namespace as Namespace;
use function My\Full\Namespace;
use function My\Full\Namespace as Namespace;

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Declare variable

abc = 2

The equivalent in PHP is:

$abc = 2;

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Print message

println "abc"
print 2*4

The equivalent in PHP is:

echo "abc" . PHP_EOL;
echo 8;

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Types

The types of variables available in rp are identical to php.

rp	php
integer	integer
float	float
string	string
array	array

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Try catch

You can quickly create a try catch without specifying the exception type. By default rp will assign the generic exception for PHP, called Exception.

try
    print "Hello"
    /* Something with errors */
catch
    print "Error" . e
end

Note that the variable e can be called from rp without it being visually defined since in PHP it is.

The equivalent in PHP is:

try {
    echo "Hello";
    /* Something with errors */
} catch (Exception $e) {
    echo "Error" . $e;
}

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Functions

If the function has no arguments then the parentheses can be omitted

def hello
    abc = "Hello"
    println abc
end

The equivalent in PHP is:

function hello(){
    $abc = "Hello";
    echo $abc . PHP_EOL;
}

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Arguments

def hello(msg:string)
    print "Hello " . msg
end

The equivalent in PHP is:

function hello(string $msg){
    echo "Hello " . $msg;
}

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Flow controls

If

if abc
    print "This is " . abc
end

The equivalent in PHP is:

if($abc) {
    echo "This is " . $abc;
}

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Basic loop

for 10
    println "This is repeated 10 times."
end

The equivalent in PHP is:

for ($__index__ = 0; $__index__ <= 10; $__index__++) {
    echo "This is repeated 10 times." . PHP_EOL;
}

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Each

each abc as x
    print "Hello" . x
end

The equivalent in PHP is:

foreach ($abc as $x) {
    echo "Hello" . $x;
}

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Comments

The definition of comments is the same as in php, except comments with the symbol #.

// This a comment

/*
* Another longer comment
*/

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Classes

The classes to be inherited are declared after the colon symbol.

Note: The possibility of allowing the inheritance of multiple objects is being evaluated.

class database
    def __construct
        print "Initialized..."
    end
end

class database : mysqli
    def __construct
        print "Initialized..."
    end
end

The equivalent in PHP is:

class database {
    function __construct() {
        echo "Initialized...";
    }
}

class database extends mysqli {
    function __construct() {
        echo "Initialized...";
    }
}

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Attributes

The @ character is used to define or retrieve an object from a class.

Note the attribute name in the example here:

class Pet
    private name = "Kitty"
    public age = 2

    def getName
        return @name
    end
end

The equivalent in PHP is:

class Pet {
    private $name = "Kitty";
    public $age = 2;

    function getName() {
        return $this->$name;
    }
}

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Segments

Description	rp	php
get the type of data	typeof value	gettype($value)
returns a number vector from a range	1..6	array(1,2,3,4,5,6)

Install

TODO: Write doc

Development

You can test the rp locally with these steps:

1. Install jison-gho globally. (npm install -g jison-gho)

2. Compile grammar.

   cd src
   jison grammar.jison
   
   # you can also run this command
   npm run build

3. Ready, write your magic.

Test

Unit tests

npm test

Remember to install the npm packages: npm install or yarn

TODO

• Arrays
• Inheritance of multiple classes
• 'implements'
• Special conditions, as well as coffeescript...
• Access to PHP's own functions
• CLI

Many more features come...