feat(reader): add PDF reading support with outline chapters, CLI blocks, and noise filtering (task 7)

app/vendor/pypdf/errors.py

@@ -0,0 +1,74 @@
+"""
+All errors/exceptions pypdf raises and all of the warnings it uses.
+
+Please note that broken PDF files might cause other Exceptions.
+"""
+
+
+class DeprecationError(Exception):
+    """Raised when a deprecated feature is used."""
+
+
+class DependencyError(Exception):
+    """
+    Raised when a required dependency (a library or module that pypdf depends on)
+    is not available or cannot be imported.
+    """
+
+
+class PyPdfError(Exception):
+    """Base class for all exceptions raised by pypdf."""
+
+
+class PdfReadError(PyPdfError):
+    """Raised when there is an issue reading a PDF file."""
+
+
+class PageSizeNotDefinedError(PyPdfError):
+    """Raised when the page size of a PDF document is not defined."""
+
+
+class PdfReadWarning(UserWarning):
+    """Issued when there is a potential issue reading a PDF file, but it can still be read."""
+
+
+class PdfStreamError(PdfReadError):
+    """Raised when there is an issue reading the stream of data in a PDF file."""
+
+
+class ParseError(PyPdfError):
+    """
+    Raised when there is an issue parsing (analyzing and understanding the
+    structure and meaning of) a PDF file.
+    """
+
+
+class FileNotDecryptedError(PdfReadError):
+    """
+    Raised when a PDF file that has been encrypted
+    (meaning it requires a password to be accessed) has not been successfully
+    decrypted.
+    """
+
+
+class WrongPasswordError(FileNotDecryptedError):
+    """Raised when the wrong password is used to try to decrypt an encrypted PDF file."""
+
+
+class EmptyFileError(PdfReadError):
+    """Raised when a PDF file is empty or has no content."""
+
+
+class EmptyImageDataError(PyPdfError):
+    """Raised when trying to process an image that has no data."""
+
+
+STREAM_TRUNCATED_PREMATURELY = "Stream has ended unexpectedly"
+
+
+class LimitReachedError(PyPdfError):
+    """Raised when a limit is reached."""
+
+
+class XmpDocumentError(PyPdfError, RuntimeError):
+    """Raised when the XMP XML document context is invalid or missing."""