autonumeric
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autoNumeric is a standalone Javascript library that provides live *as-you-type* formatting for international numbers and currencies. It supports most international numeric formats and currencies including those used in Europe, Asia, and North and South Am
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JavaScript
/**
* Math expression tokenizer/parser/evaluator functions for autoNumeric.js
*
* @author Alexandre Bonneau <alexandre.bonneau@linuxfr.eu>
* @copyright © 2019 Alexandre Bonneau
*
* The MIT License (http://www.opensource.org/licenses/mit-license.php)
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sub license, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* The Abstract Syntax Tree node
*
* Each node carries the node information such as type (operator type), value (if it's a leaf), and the left and right branches
*/
export default class ASTNode {
/*
constructor() {
// this.type = void(0);
// this.value = 0;
// this.left = null;
// this.right = null;
}
*/
static createNode(type, left, right) {
const node = new ASTNode();
node.type = type;
node.left = left;
node.right = right;
return node;
}
static createUnaryNode(left) {
const node = new ASTNode();
node.type = 'unaryMinus';
node.left = left;
node.right = null;
return node;
}
static createLeaf(value) {
const node = new ASTNode();
node.type = 'number';
node.value = value;
return node;
}
}