Nomad changes

docs/snippets/r/advanced/chunk_page_mapping.md

@@ -0,0 +1,27 @@
+```r title="R"
+library(kreuzberg)
+
+config <- list(
+  chunking = list(max_characters = 500L, overlap = 50L),
+  pages = list(extract_pages = TRUE)
+)
+
+json <- extract_file_sync("document.pdf", "application/pdf", config)
+result <- jsonlite::fromJSON(json, simplifyVector = FALSE)
+
+for (i in seq_along(result$chunks)) {
+  chunk <- result$chunks[[i]]
+  metadata <- result$chunk_metadata[[i]]
+
+  if (!is.null(metadata$first_page) && !is.null(metadata$last_page)) {
+    page_range <- if (metadata$first_page == metadata$last_page) {
+      sprintf("Page %d", metadata$first_page)
+    } else {
+      sprintf("Pages %d-%d", metadata$first_page, metadata$last_page)
+    }
+
+    preview <- substr(chunk, 1L, min(50L, nchar(chunk)))
+    cat(sprintf("Chunk: %s... (%s)\n", preview, page_range))
+  }
+}
+```