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fix: #79 process default values in CSS custom properties #80

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fix: #79 process default values in CSS custom properties #80

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2 changes: 1 addition & 1 deletion lib/pixel-unit-regex.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,4 +6,4 @@
// Any digit followed by px
// !singlequotes|!doublequotes|!url()|pixelunit

module.exports = /"[^"]+"|'[^']+'|url\([^)]+\)|var\([^)]+\)|(\d*\.?\d+)px/g;
module.exports = /"[^"]+"|'[^']+'|url\([^)]+\)|--[\w-]+|(\d*\.?\d+)px/g;
13 changes: 13 additions & 0 deletions spec/pxtorem-spec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,19 @@ describe("pxtorem", function() {
expect(processed).toBe(expected);
});

it("should ignore px in custom property, but handle default values", function() {
var rules =
":root { --rem-14px: 14px; } .rule { font-size: var(--rem-14px, 16px); }";
var expected =
":root { --rem-14px: 0.875rem; } .rule { font-size: var(--rem-14px, 1rem); }";
var options = {
propList: ["--*", "font-size"]
};
var processed = postcss(pxtorem(options)).process(rules).css;

expect(processed).toBe(expected);
})

it("should handle < 1 values and values without a leading 0", function() {
var rules = ".rule { margin: 0.5rem .5px -0.2px -.2em }";
var expected = ".rule { margin: 0.5rem 0.03125rem -0.0125rem -.2em }";
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