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pptx.ts
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pptx.ts
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import { parseOfficeAsync } from "officeparser";
import { Document } from "@langchain/core/documents";
import { BufferLoader } from "./buffer.js";
import { logVersion020MigrationWarning } from "../../util/entrypoint_deprecation.js";
/* #__PURE__ */ logVersion020MigrationWarning({
oldEntrypointName: "document_loaders/fs/pptx",
newPackageName: "@langchain/community",
});
/**
* @deprecated - Import from "@langchain/community/document_loaders/fs/pptx" instead. This entrypoint will be removed in 0.3.0.
*
* A class that extends the `BufferLoader` class. It represents a document
* loader that loads documents from PDF files.
*/
export class PPTXLoader extends BufferLoader {
constructor(filePathOrBlob: string | Blob) {
super(filePathOrBlob);
}
/**
* A method that takes a `raw` buffer and `metadata` as parameters and
* returns a promise that resolves to an array of `Document` instances. It
* uses the `parseOfficeAsync` function from the `officeparser` module to extract
* the raw text content from the buffer. If the extracted powerpoint content is
* empty, it returns an empty array. Otherwise, it creates a new
* `Document` instance with the extracted powerpoint content and the provided
* metadata, and returns it as an array.
* @param raw The buffer to be parsed.
* @param metadata The metadata of the document.
* @returns A promise that resolves to an array of `Document` instances.
*/
public async parse(
raw: Buffer,
metadata: Document["metadata"]
): Promise<Document[]> {
const pptx = await parseOfficeAsync(raw, { outputErrorToConsole: true });
if (!pptx) return [];
return [
new Document({
pageContent: pptx,
metadata,
}),
];
}
}