flow like the river

BACK_BACK/node_modules/postcss-calc/dist/lib/convertUnit.js

@@ -0,0 +1,157 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var conversions = {
+  // Absolute length units
+  'px': {
+    'px': 1,
+    'cm': 96 / 2.54,
+    'mm': 96 / 25.4,
+    'q': 96 / 101.6,
+    'in': 96,
+    'pt': 96 / 72,
+    'pc': 16
+  },
+  'cm': {
+    'px': 2.54 / 96,
+    'cm': 1,
+    'mm': 0.1,
+    'q': 0.025,
+    'in': 2.54,
+    'pt': 2.54 / 72,
+    'pc': 2.54 / 6
+  },
+  'mm': {
+    'px': 25.4 / 96,
+    'cm': 10,
+    'mm': 1,
+    'q': 0.25,
+    'in': 25.4,
+    'pt': 25.4 / 72,
+    'pc': 25.4 / 6
+  },
+  'q': {
+    'px': 101.6 / 96,
+    'cm': 40,
+    'mm': 4,
+    'q': 1,
+    'in': 101.6,
+    'pt': 101.6 / 72,
+    'pc': 101.6 / 6
+  },
+  'in': {
+    'px': 1 / 96,
+    'cm': 1 / 2.54,
+    'mm': 1 / 25.4,
+    'q': 1 / 101.6,
+    'in': 1,
+    'pt': 1 / 72,
+    'pc': 1 / 6
+  },
+  'pt': {
+    'px': 0.75,
+    'cm': 72 / 2.54,
+    'mm': 72 / 25.4,
+    'q': 72 / 101.6,
+    'in': 72,
+    'pt': 1,
+    'pc': 12
+  },
+  'pc': {
+    'px': 0.0625,
+    'cm': 6 / 2.54,
+    'mm': 6 / 25.4,
+    'q': 6 / 101.6,
+    'in': 6,
+    'pt': 6 / 72,
+    'pc': 1
+  },
+  // Angle units
+  'deg': {
+    'deg': 1,
+    'grad': 0.9,
+    'rad': 180 / Math.PI,
+    'turn': 360
+  },
+  'grad': {
+    'deg': 400 / 360,
+    'grad': 1,
+    'rad': 200 / Math.PI,
+    'turn': 400
+  },
+  'rad': {
+    'deg': Math.PI / 180,
+    'grad': Math.PI / 200,
+    'rad': 1,
+    'turn': Math.PI * 2
+  },
+  'turn': {
+    'deg': 1 / 360,
+    'grad': 0.0025,
+    'rad': 0.5 / Math.PI,
+    'turn': 1
+  },
+  // Duration units
+  's': {
+    's': 1,
+    'ms': 0.001
+  },
+  'ms': {
+    's': 1000,
+    'ms': 1
+  },
+  // Frequency units
+  'hz': {
+    'hz': 1,
+    'khz': 1000
+  },
+  'khz': {
+    'hz': 0.001,
+    'khz': 1
+  },
+  // Resolution units
+  'dpi': {
+    'dpi': 1,
+    'dpcm': 1 / 2.54,
+    'dppx': 1 / 96
+  },
+  'dpcm': {
+    'dpi': 2.54,
+    'dpcm': 1,
+    'dppx': 2.54 / 96
+  },
+  'dppx': {
+    'dpi': 96,
+    'dpcm': 96 / 2.54,
+    'dppx': 1
+  }
+};
+
+function convertUnit(value, sourceUnit, targetUnit, precision) {
+  var sourceUnitNormalized = sourceUnit.toLowerCase();
+  var targetUnitNormalized = targetUnit.toLowerCase();
+
+  if (!conversions[targetUnitNormalized]) {
+    throw new Error("Cannot convert to " + targetUnit);
+  }
+
+  if (!conversions[targetUnitNormalized][sourceUnitNormalized]) {
+    throw new Error("Cannot convert from " + sourceUnit + " to " + targetUnit);
+  }
+
+  var converted = conversions[targetUnitNormalized][sourceUnitNormalized] * value;
+
+  if (precision !== false) {
+    precision = Math.pow(10, parseInt(precision) || 5);
+    return Math.round(converted * precision) / precision;
+  }
+
+  return converted;
+}
+
+var _default = convertUnit;
+exports.default = _default;
+module.exports = exports.default;