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'use strict';
/**
* https://github.com/TrySound/postcss-value-parser/blob/fc679a7e17877841ff9fe455722280b65abd4f28/lib/unit.js
* parse node -> number and unit
*/
const minus = '-'.charCodeAt(0);
const plus = '+'.charCodeAt(0);
const dot = '.'.charCodeAt(0);
module.exports = function unit(value) {
let pos = 0;
const length = value.length;
let dotted = false;
let containsNumber = false;
let code;
let number = '';
while (pos < length) {
code = value.charCodeAt(pos);
if (code >= 48 && code <= 57) {
number += value[pos];
containsNumber = true;
} else if (code === dot) {
if (dotted) {
break;
}
dotted = true;
number += value[pos];
} else if (code === plus || code === minus) {
if (pos !== 0) {
break;
}
number += value[pos];
} else {
break;
}
pos += 1;
}
return containsNumber ? {
number,
unit: value.slice(pos),
} : false;
};