v1.0 with SW PWA enabled

frontend/node_modules/tailwindcss/lib/util/math-operators.js

@@ -0,0 +1,152 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+function _export(target, all) {
+    for(var name in all)Object.defineProperty(target, name, {
+        enumerable: true,
+        get: all[name]
+    });
+}
+_export(exports, {
+    hasMathFn: function() {
+        return hasMathFn;
+    },
+    addWhitespaceAroundMathOperators: function() {
+        return addWhitespaceAroundMathOperators;
+    }
+});
+const LOWER_A = 0x61;
+const LOWER_Z = 0x7a;
+const UPPER_A = 0x41;
+const UPPER_Z = 0x5a;
+const LOWER_E = 0x65;
+const UPPER_E = 0x45;
+const ZERO = 0x30;
+const NINE = 0x39;
+const ADD = 0x2b;
+const SUB = 0x2d;
+const MUL = 0x2a;
+const DIV = 0x2f;
+const OPEN_PAREN = 0x28;
+const CLOSE_PAREN = 0x29;
+const COMMA = 0x2c;
+const SPACE = 0x20;
+const PERCENT = 0x25;
+const MATH_FUNCTIONS = [
+    "calc",
+    "min",
+    "max",
+    "clamp",
+    "mod",
+    "rem",
+    "sin",
+    "cos",
+    "tan",
+    "asin",
+    "acos",
+    "atan",
+    "atan2",
+    "pow",
+    "sqrt",
+    "hypot",
+    "log",
+    "exp",
+    "round"
+];
+function hasMathFn(input) {
+    return input.indexOf("(") !== -1 && MATH_FUNCTIONS.some((fn)=>input.includes(`${fn}(`));
+}
+function addWhitespaceAroundMathOperators(input) {
+    // Bail early if there are no math functions in the input
+    if (!MATH_FUNCTIONS.some((fn)=>input.includes(fn))) {
+        return input;
+    }
+    let result = "";
+    let formattable = [];
+    let valuePos = null;
+    let lastValuePos = null;
+    for(let i = 0; i < input.length; i++){
+        let char = input.charCodeAt(i);
+        // Track if we see a number followed by a unit, then we know for sure that
+        // this is not a function call.
+        if (char >= ZERO && char <= NINE) {
+            valuePos = i;
+        } else if (valuePos !== null && (char === PERCENT || char >= LOWER_A && char <= LOWER_Z || char >= UPPER_A && char <= UPPER_Z)) {
+            valuePos = i;
+        } else {
+            lastValuePos = valuePos;
+            valuePos = null;
+        }
+        // Determine if we're inside a math function
+        if (char === OPEN_PAREN) {
+            result += input[i];
+            // Scan backwards to determine the function name. This assumes math
+            // functions are named with lowercase alphanumeric characters.
+            let start = i;
+            for(let j = i - 1; j >= 0; j--){
+                let inner = input.charCodeAt(j);
+                if (inner >= ZERO && inner <= NINE) {
+                    start = j // 0-9
+                    ;
+                } else if (inner >= LOWER_A && inner <= LOWER_Z) {
+                    start = j // a-z
+                    ;
+                } else {
+                    break;
+                }
+            }
+            let fn = input.slice(start, i);
+            // This is a known math function so start formatting
+            if (MATH_FUNCTIONS.includes(fn)) {
+                formattable.unshift(true);
+                continue;
+            } else if (formattable[0] && fn === "") {
+                formattable.unshift(true);
+                continue;
+            }
+            // This is not a known math function so don't format it
+            formattable.unshift(false);
+            continue;
+        } else if (char === CLOSE_PAREN) {
+            result += input[i];
+            formattable.shift();
+        } else if (char === COMMA && formattable[0]) {
+            result += `, `;
+            continue;
+        } else if (char === SPACE && formattable[0] && result.charCodeAt(result.length - 1) === SPACE) {
+            continue;
+        } else if ((char === ADD || char === MUL || char === DIV || char === SUB) && formattable[0]) {
+            let trimmed = result.trimEnd();
+            let prev = trimmed.charCodeAt(trimmed.length - 1);
+            let prevPrev = trimmed.charCodeAt(trimmed.length - 2);
+            let next = input.charCodeAt(i + 1);
+            // Do not add spaces for scientific notation, e.g.: `-3.4e-2`
+            if ((prev === LOWER_E || prev === UPPER_E) && prevPrev >= ZERO && prevPrev <= NINE) {
+                result += input[i];
+                continue;
+            } else if (prev === ADD || prev === MUL || prev === DIV || prev === SUB) {
+                result += input[i];
+                continue;
+            } else if (prev === OPEN_PAREN || prev === COMMA) {
+                result += input[i];
+                continue;
+            } else if (input.charCodeAt(i - 1) === SPACE) {
+                result += `${input[i]} `;
+            } else if (// Previous is a digit
+            prev >= ZERO && prev <= NINE || // Next is a digit
+            next >= ZERO && next <= NINE || // Previous is end of a function call (or parenthesized expression)
+            prev === CLOSE_PAREN || // Next is start of a parenthesized expression
+            next === OPEN_PAREN || // Next is an operator
+            next === ADD || next === MUL || next === DIV || next === SUB || // Previous position was a value (+ unit)
+            lastValuePos !== null && lastValuePos === i - 1) {
+                result += ` ${input[i]} `;
+            } else {
+                result += input[i];
+            }
+        } else {
+            result += input[i];
+        }
+    }
+    return result;
+}