; | |
Object.defineProperty(exports, "__esModule", { | |
value: true | |
}); | |
Object.defineProperty(exports, "default", { | |
enumerable: true, | |
get: function() { | |
return negateValue; | |
} | |
}); | |
function negateValue(value) { | |
value = `${value}`; | |
if (value === "0") { | |
return "0"; | |
} | |
// Flip sign of numbers | |
if (/^[+-]?(\d+|\d*\.\d+)(e[+-]?\d+)?(%|\w+)?$/.test(value)) { | |
return value.replace(/^[+-]?/, (sign)=>sign === "-" ? "" : "-"); | |
} | |
// What functions we support negating numeric values for | |
// var() isn't inherently a numeric function but we support it anyway | |
// The trigonometric functions are omitted because you'll need to use calc(…) with them _anyway_ | |
// to produce generally useful results and that will be covered already | |
let numericFunctions = [ | |
"var", | |
"calc", | |
"min", | |
"max", | |
"clamp" | |
]; | |
for (const fn of numericFunctions){ | |
if (value.includes(`${fn}(`)) { | |
return `calc(${value} * -1)`; | |
} | |
} | |
} | |