Exam generation rework, batch user tables, fastapi endpoint switch

src/components/ExamEditor/Exercises/WriteBlanksForm/parsing.ts

@@ -0,0 +1,79 @@
+export interface PromptPart {
+    id: string;
+    content: string;
+    isPlaceholder?: boolean;
+}
+
+
+export interface ParsedQuestion {
+    id: string;
+    parts: PromptPart[];
+    editingPlaceholders: boolean;
+}
+
+const parseLine = (line: string): PromptPart[] => {
+    const parts: PromptPart[] = [];
+    let lastIndex = 0;
+    const regex = /{{(\d+)}}/g;
+    let match;
+
+    while ((match = regex.exec(line)) !== null) {
+        if (match.index > lastIndex) {
+            const textBefore = line.slice(lastIndex, match.index);
+            const words = textBefore.split(/(\s+)/).filter(Boolean);
+            words.forEach(word => {
+                parts.push({
+                    id: `text-${Date.now()}-${parts.length}`,
+                    content: word
+                });
+            });
+        }
+        
+        const placeholderId = match[1];
+        parts.push({
+            id: placeholderId,
+            content: match[0],
+            isPlaceholder: true
+        });
+        
+        lastIndex = match.index + match[0].length;
+    }
+    
+    if (lastIndex < line.length) {
+        const textAfter = line.slice(lastIndex);
+        const words = textAfter.split(/(\s+)/).filter(Boolean);
+        words.forEach(word => {
+            parts.push({
+                id: `text-${Date.now()}-${parts.length}`,
+                content: word
+            });
+        });
+    }
+    
+    return parts;
+};
+
+const reconstructLine = (parts: PromptPart[]): string => {
+    const text = parts
+        .map(part => part.content)
+        .join(' ')
+        .replace(/\s+/g, ' ')
+        .trim();
+    return text;
+};
+
+
+const formatDisplayContent = (content: string): string => {
+    return content.replace(/{{(\d+)}}/g, '[$1]');
+};
+
+const formatStorageContent = (content: string): string => {
+    return content.replace(/\[(\d+)\]/g, '{{$1}}');
+};
+
+export {
+    parseLine,
+    reconstructLine,
+    formatDisplayContent,
+    formatStorageContent
+}