core: 添加buildContent方法

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.13.52",
+    "version": "2.13.53",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",

packages/hydrooj/src/utils.ts

@@ -201,3 +201,71 @@ export function sleep(timeout: number) {
         }, timeout);
     });
 }
+
+function deepen(modifyString: (source: string) => string) {
+    function modifyObject<T>(source: T): T {
+        if (typeof source !== 'object' || !source) return source;
+        if (Array.isArray(source)) return source.map(modifyObject) as any;
+        const result = {} as T;
+        for (const key in source) {
+            result[modifyString(key)] = modifyObject(source[key]);
+        }
+        return result;
+    }
+
+    return function t<T>(source: T): T {
+        if (typeof source === 'string') {
+            return modifyString(source) as any;
+        }
+        return modifyObject(source);
+    };
+}
+
+export const camelCase = deepen((source) => source.replace(/[_-][a-z]/g, (str) => str.slice(1).toUpperCase()));
+export const paramCase = deepen((source) => source.replace(/_/g, '-').replace(/(?<!^)[A-Z]/g, (str) => `-${str.toLowerCase()}`));
+export const snakeCase = deepen((source) => source.replace(/-/g, '_').replace(/(?<!^)[A-Z]/g, (str) => `_${str.toLowerCase()}`));
+
+interface ProblemSource {
+    description?: string,
+    input?: string,
+    output?: string,
+    samples?: [string, string][],
+    hint?: string,
+    source?: string,
+}
+
+export function buildContent(source: ProblemSource, type: 'markdown' | 'html' = 'markdown', translate?: Function) {
+    const _ = translate || ((s: string) => s);
+    return type === 'html'
+        ? [
+            ...source.description ? [`<h2>${_('Description')}</h2>`, source.description] : [],
+            ...source.input ? [`<h2>${_('Input Format')}</h2>`, source.input] : [],
+            ...source.output ? [`<h2>'${_('Output Format')}</h2>`, source.output] : [],
+            ...(source.samples).map((sample, i) => [
+                `<h2>${_('Sample Input')} ${i + 1}</h2><pre>`,
+                sample[0],
+                `</pre><h2>${_('Sample Output')} ${i + 1}</h2><pre>`,
+                sample[1],
+                '</pre>',
+            ].join('\n')),
+            ...source.hint ? [`<h2>${_('Hint')}</h2>`, source.hint] : [],
+            ...source.source ? [`<h2>${_('Source')}</h2>`, source.source] : [],
+        ].join('\n')
+        : [
+            ...source.description ? [`## ${_('Description')}`, source.description] : [],
+            ...source.input ? [`## ${_('Input Format')}`, source.input] : [],
+            ...source.output ? [`## '${_('Output Format')}`, source.output] : [],
+            ...(source.samples).map((sample, i) => [
+                `## ${_('Sample Input')} ${i + 1}`,
+                '```',
+                sample[0],
+                '```',
+                `## ${_('Sample Output')} ${i + 1}`,
+                '```',
+                sample[1],
+                '```',
+            ].join('\n')),
+            ...source.hint ? [`## ${_('Hint')}`, source.hint] : [],
+            ...source.source ? [`## ${_('Source')}`, source.source] : [],
+        ].join('\n');
+}