poonya.js v0.4.5

Poonya

JavaScript library that allows you to create and execute po templates, thereby formatting text. In other words, this is a template engine

How to use it in your project?

To do this, you need to connect Poonya

const poonya = require('poonya');

After that, you can create a text template, in a string way, or specify the path to the file

const Pattern = new poonya.ExcecutionPattern('set poonya = `greet!`;> poonya;');

// It write ['greet!']
console.log(Pattern.result());

Also, if the base is text, then you can use MessagePattern

const Pattern = new poonya.MessagePattern('greet!');

// It write ['greet!']
console.log(Pattern.result());

In this case, the code for Poonya should be written in {} - curly braces Also, Poonya can read expressions, you should use ExpressionPattern for this

const Pattern = new poonya.ExpressionPattern('5 > 3 & 3 > 2 & 2 > 1');

// It write true
console.log(Pattern.result());

The expression passed to the constructor will be automatically considered a Poonya expression, it must match its syntax

Language syntax

Expression

For expressions, here, perhaps, the standard syntax, almost all operators + - * / < > >= = <= are used. You can also use boolean operators & | - it don't work on numbers. These are not binary operators, but Boolean equivalent to || and && from JavaScript. Expressions are used in many places, they can be passed as an argument to a function, or as an expression to set the value of a variable. For example:

set s = < expression >;

Keywords

set

The set operator is used to set a new value in the current context. For example, you have a variable x that exists in the previous context, but it gets in the way and you want to use the same variable x but so that the value in the previous context does not change. You can use set for this.

set s = 'Some value';

// Here we create's new context
if(true){
    > s;

    set s = 'Some value#1';

    > s;
}

> s;

The previous example would print Some value thenSome value # 1 then again Some value. This is because we first set the value of s to be Some value, then entered a new context, output s, and in this new context, set it to a new valueSome value # 1. Moreover, since this is a new context, in the previous context the value of s remained the same, which we are convinced of by repeatedly displaying it below.

And so, set is needed to create a variable in the current context.

while

the while keyword, as elsewhere in general, does what is passed in curly braces {} as long as the condition passed in parentheses is met - (). For example:

set x = 0;

while(x < 100){ x = x + 1;

> x;

}

'cool';

Will print a sequence of numbers, from 0 to 100 (not inclusive) and at the end will print 'cool'.