1 files changed, 40 insertions, 0 deletions
diff --git a/node_modules/csso/lib/replace/Number.js b/node_modules/csso/lib/replace/Number.js
new file mode 100644
index 00000000..3420812d
--- /dev/null
+++ b/node_modules/csso/lib/replace/Number.js
@@ -0,0 +1,40 @@
+const OMIT_PLUSSIGN = /^(?:\+|(-))?0*(\d*)(?:\.0*|(\.\d*?)0*)?$/;
+const KEEP_PLUSSIGN = /^([\+\-])?0*(\d*)(?:\.0*|(\.\d*?)0*)?$/;
+const unsafeToRemovePlusSignAfter = new Set([
+    'Dimension',
+    'Hash',
+    'Identifier',
+    'Number',
+    'Raw',
+    'UnicodeRange'
+]);
+
+export function packNumber(value, item) {
+    // omit plus sign only if no prev or prev is safe type
+    const regexp = item && item.prev !== null && unsafeToRemovePlusSignAfter.has(item.prev.data.type)
+        ? KEEP_PLUSSIGN
+        : OMIT_PLUSSIGN;
+
+    // 100 -> '100'
+    // 00100 -> '100'
+    // +100 -> '100'
+    // -100 -> '-100'
+    // 0.123 -> '.123'
+    // 0.12300 -> '.123'
+    // 0.0 -> ''
+    // 0 -> ''
+    // -0 -> '-'
+    value = String(value).replace(regexp, '$1$2$3');
+
+    if (value === '' || value === '-') {
+        value = '0';
+    }
+    // FIXME: is it solution simplier?
+    // value = String(Number(value)).replace(/^(-?)0+\./, '$1.');
+
+    return value;
+}
+
+export function Number(node) {
+    node.value = packNumber(node.value);
+};