Steps to reproduce ------------------ ```javascript const postcss = require("postcss"); async function main() { const plugins = [require("postcss-minify-font-values")]; const input = 'body { font-family: "STHeiti Light [STXihei]" }'; console.log("/* Input: */\n%s", input); const output = await postcss(plugins).process(input); console.log("/* Output: */\n%s", output.css); } main(); ``` Actual behavior ----------------- ```css /* Input: */ body { font-family: "STHeiti Light [STXihei]" } /* Output: */ body { font-family: STHeiti Light\ [STXihei] } ``` Output is **Invaild property value** Expected behavior --------------- ```css /* Input: */ body { font-family: "STHeiti Light [STXihei]" } /* Output: */ body { font-family: STHeiti Light \[STXihei\] } ``` Reference --------------- 1. https://drafts.csswg.org/css-fonts-3/#font-family-prop 2. https://www.w3.org/TR/CSS22/syndata.html#strings 3. https://www.w3.org/TR/CSS22/syndata.html#escaped-characters 4. https://www.w3.org/TR/CSS22/syndata.html#tokenization 5. https://github.com/ben-eb/cssnano/blob/77a8889fb500c1579740421d48d72bd2549b0f40/packages/postcss-minify-font-values/src/lib/minify-family.js
Steps to reproduce
Actual behavior
Output is Invaild property value
Expected behavior
Reference