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node_modules/vlq/dist/vlq.js

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+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+	typeof define === 'function' && define.amd ? define(['exports'], factory) :
+	(factory((global.vlq = global.vlq || {})));
+}(this, (function (exports) { 'use strict';
+
+var charToInteger = {};
+var integerToChar = {};
+
+'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='.split( '' ).forEach( function ( char, i ) {
+	charToInteger[ char ] = i;
+	integerToChar[ i ] = char;
+});
+
+function decode ( string ) {
+	var result = [];
+	var shift = 0;
+	var value = 0;
+
+	for ( var i = 0; i < string.length; i += 1 ) {
+		var integer = charToInteger[ string[i] ];
+
+		if ( integer === undefined ) {
+			throw new Error( 'Invalid character (' + string[i] + ')' );
+		}
+
+		var hasContinuationBit = integer & 32;
+
+		integer &= 31;
+		value += integer << shift;
+
+		if ( hasContinuationBit ) {
+			shift += 5;
+		} else {
+			var shouldNegate = value & 1;
+			value >>= 1;
+
+			result.push( shouldNegate ? -value : value );
+
+			// reset
+			value = shift = 0;
+		}
+	}
+
+	return result;
+}
+
+function encode ( value ) {
+	var result;
+
+	if ( typeof value === 'number' ) {
+		result = encodeInteger( value );
+	} else {
+		result = '';
+		for ( var i = 0; i < value.length; i += 1 ) {
+			result += encodeInteger( value[i] );
+		}
+	}
+
+	return result;
+}
+
+function encodeInteger ( num ) {
+	var result = '';
+
+	if ( num < 0 ) {
+		num = ( -num << 1 ) | 1;
+	} else {
+		num <<= 1;
+	}
+
+	do {
+		var clamped = num & 31;
+		num >>= 5;
+
+		if ( num > 0 ) {
+			clamped |= 32;
+		}
+
+		result += integerToChar[ clamped ];
+	} while ( num > 0 );
+
+	return result;
+}
+
+exports.decode = decode;
+exports.encode = encode;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));