Feature: Complete Admin UI Overhaul, Content Factory Showcase Mode, and Site Management

frontend/src/lib/cartesian/SpintaxParser.ts

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+
+/**
+ * SpintaxParser
+ * Handles recursive parsing of {option1|option2} syntax.
+ */
+export class SpintaxParser {
+    /**
+     * Parse a string containing spintax.
+     * Supports nested spintax like {Hi|Hello {World|Friend}}
+     * @param text The text with spintax
+     * @returns The parsed text with one option selected per block
+     */
+    static parse(text: string): string {
+        if (!text) return '';
+
+        // Regex to find the innermost spintax block: {([^{}]*)}
+        // We execute this recursively until no braces remain.
+        let parsed = text;
+        const regex = /\{([^{}]+)\}/g;
+
+        while (regex.test(parsed)) {
+            parsed = parsed.replace(regex, (match, content) => {
+                const options = content.split('|');
+                const randomOption = options[Math.floor(Math.random() * options.length)];
+                return randomOption;
+            });
+        }
+
+        return parsed;
+    }
+
+    /**
+     * Count total variations in a spintax string.
+     * (Simplified estimate for preview calculator)
+     */
+    static countVariations(text: string): number {
+        // Basic implementation for complexity estimation
+        // Real count requiring parsing tree is complex, 
+        // this is a placeholder if needed for UI later.
+        return 1;
+    }
+}