feat: support multiple attributes and `as` directive in inline blocks

Update the inline block parser to support arbitrary key-value pairs.
If an `as` attribute is provided, the block is replaced with a
directive (e.g., `:directive[path]{attrs}`) instead of being
stripped. If no `as` attribute is present, the block is removed.
Additionally, filenames are now automatically generated using a
content hash if the `file` attribute is missing.

src/cli/inline-blocks.ts

@@ -1,68 +1,100 @@
 import { posix } from "path";
+import { createHash } from "crypto";
 
 /**
- * Regex to match a fenced code block with a `file="..."` attribute, e.g.:
+ * Regex to match a fenced code block with attributes, e.g.:
  *
  *   ```csv file="card-data.csv"
  *   name, cost, effect
  *   Fireball, 1, Blast em
  *   ```
  *
- *   ```yaml file="monsters.yaml"
- *   goblin:
- *     hp: 7
+ *   ```csv as="md-table" roll=true
+ *   name, cost, effect
+ *   Fireball, 1, Blast em
  *   ```
  *
- * The language identifier is optional — only `file="..."` matters.
- *
- * Group 1: the info string after the opening fence (e.g. `csv file="card-data.csv"`)
- * Group 2: the code block body
+ * Group 1: language identifier (e.g. "csv")
+ * Group 2: attribute string (e.g. `file="card-data.csv" as="md-table" roll=true`)
+ * Group 3: the code block body
  */
-const INLINE_FILE_BLOCK_RE = /^```\w*\s+file="([^"]+)"(?:\s+\w+="[^"]*")*\s*\n([\s\S]*?)```\s*$/gm;
+const INLINE_FILE_BLOCK_RE = /^```(\w*)\s+(.+?)\s*\n([\s\S]*?)```\s*$/gm;
 
 /**
- * Process fenced code blocks that contain a `file="..."` attribute.
+ * Parse key="value" and key=value pairs from an attribute string.
+ */
+function parseAttrs(info: string): Record<string, string> {
+  const attrs: Record<string, string> = {};
+  const re = /(\w+)\s*=\s*("[^"]*"|\S+)/g;
+  let m: RegExpExecArray | null;
+  while ((m = re.exec(info)) !== null) {
+    attrs[m[1]] = m[2].replace(/^"|"$/g, "");
+  }
+  return attrs;
+}
+
+/**
+ * Short content hash for stable generated filenames.
+ */
+function contentHash(body: string): string {
+  return createHash("md5").update(body).digest("hex").slice(0, 8);
+}
+
+/**
+ * Process fenced code blocks that contain attributes.
  *
  * For each block like:
- *   ```lang file="card-data.csv"
+ *   ```lang file="card-data.csv" as="md-table" roll=true
  *   content
  *   ```
  *
- * 1. Strips the block from the returned text (so it doesn't render)
+ * 1. Strips the block from the returned text
  * 2. Injects a synthetic entry into `index` at the resolved file path
+ * 3. If `as` is present, replaces the block with a directive like
+ *    `:md-table[./file.csv]{roll=true}`
  *
  * @param content - Raw file content
  * @param fileRelativePath - Normalized path of the containing file (e.g. "/rules/combat.md")
  * @param index - The content index to inject synthetic entries into
- * @returns Content with inline blocks removed
+ * @returns Content with inline blocks processed
  */
 export function extractInlineBlocks(
   content: string,
   fileRelativePath: string,
   index: Record<string, string>,
 ): string {
-  const matches: { filename: string; body: string }[] = [];
-  let match: RegExpExecArray | null;
+  const fileDir = posix.dirname(fileRelativePath);
 
-  INLINE_FILE_BLOCK_RE.lastIndex = 0;
+  return content.replace(
+    INLINE_FILE_BLOCK_RE,
+    (_match: string, lang: string, infoString: string, body: string) => {
+      const attrs = parseAttrs(infoString);
 
-  while ((match = INLINE_FILE_BLOCK_RE.exec(content)) !== null) {
-    matches.push({ filename: match[1], body: match[2] });
-  }
+      // Determine filename: explicit `file` or content-hash generated
+      const filename =
+        attrs.file || `_inline_${contentHash(body)}.${lang || "txt"}`;
+      const resolvedPath = posix.join(fileDir, filename);
 
-  if (matches.length === 0) return content;
+      // Inject the body as a synthetic file entry
+      index[resolvedPath] = body;
+      console.log(
+        `[inline] Extracted ${resolvedPath} from ${fileRelativePath}`,
+      );
 
-  const stripped = content.replace(INLINE_FILE_BLOCK_RE, "");
+      // If `as` is set, emit a directive instead of stripping
+      if (attrs.as) {
+        const extra = { ...attrs };
+        delete extra.file;
+        delete extra.as;
+        const extraStr = Object.keys(extra).length
+          ? `{${Object.entries(extra)
+              .map(([k, v]) => `${k}=${v}`)
+              .join(" ")}}`
+          : "";
+        return `:${attrs.as}[./${filename}]${extraStr}`;
+      }
 
-  for (const { filename, body } of matches) {
-    const fileDir = posix.dirname(fileRelativePath);
-    const resolvedPath = posix.join(fileDir, filename);
-
-    index[resolvedPath] = body;
-    console.log(
-      `[inline] Extracted ${resolvedPath} from ${fileRelativePath}`,
-    );
-  }
-
-  return stripped;
+      return ""; // no `as` — strip the block entirely
+    },
+  );
 }