OpenSystemsDevelopment / qpdf

Relocate `JobSetter` to `QPDF::Doc` for improved encapsulation of job-related logic. Adjust all references to use the new placement.

Relocate `Writer` to `QPDF::Doc` for better encapsulation of writer-related logic. Adjust all references to use the new placement.

Relocate `Pipe` functionality to `QPDF::Doc::Streams` for improved encapsulation of stream-related logic. Adjust all references to use the new placement.

Relocate `Resolver` to `QPDF::Doc` for improved encapsulation of resolution logic. Adjust all references accordingly to use the new placement.

Relocate `ParseGuard` to `QPDF::Doc` for better encapsulation of parsing logic. Adjust references in `QPDFParser` accordingly to use the new placement.

Replace direct access to document helpers (`acroform()`, `pages()`, `embedded_files()`, etc.) with calls through `QPDF::doc()` for better encapsulation. Adjust related methods, constructors, and memory management accordingly.

Add `QPDF::Doc` as an inner class to manage document-level functionality. Update memory management in `QPDF::Members` to include `Doc` and ensure proper initialization. Add `QPDF::doc()` method for internal access. Refactor constructors accordingly.

Introduce new methods: `data()` to access buffer content, `empty()` to check buffer state, and `size()` to retrieve buffer size. Update unit tests to validate the behavior of these methods alongside existing functionality.

Implement `Buffer::view()` to provide a read-only view of the buffer content. Update unit tests to validate `view()` behavior alongside `move()`. Include necessary `#include <string_view>` for functionality.

Refactor `Buffer`: implement `move()` method to enable efficient transfer of content to a string, leaving the buffer empty. Include unit tests for `move()` functionality to ensure correctness. Remove redundant `#include <cstring>` for cleanup.

…ance error and warning handling within `BaseHandle` and `QPDF`, highlighting that the error condition is not covered in CI testing without generating codecov noise.

…input_entry`, centralize input file handling in `infile_name`, update `new_selection` logic, and simplify page range and input processing.

…, replace redundant file warning logic in `handlePageSpecs`, and simplify resource management.

…page_heap` and `page_spec_qpdfs`, simplify file handling, and improve code clarity.

…n` method, and update logic for handling page specifications.

…parameter, return success status, and streamline warning handling logic.

…based structure for page mapping, improve indexing logic, and clean up redundant variables.

…minate redundant variables, and simplify underlay/overlay page handling logic.

…e number and index handling, update related logic accordingly.

…DFJob_private.hh`, streamline includes, and reduce header dependencies.

…mbers`, update related logic, and clean up obsolete code.

…:Members`, update related logic, and remove obsolete declarations.

…StreamLength`, `computeDeterministicIDData`, and `calculateXrefStreamPadding` to `QPDFWriter::Members`. Update related logic and remove obsolete declarations.

…rs`, update encryption and stream handling logic, and remove obsolete test coverage entries.

…related logic, and remove obsolete test coverage entries.

…ueueObjectsStandard`, `enqueueObjectsPCLm`, `enqueuePart`, `assignCompressedObjectNumbers`, and `getTrimmedTrailer` to `QPDFWriter::Members`. Update related logic and remove obsolete test coverage entries.

…alStreams`, `preserveObjectStreams`, and `generateObjectStreams` to `QPDFWriter::Members`. Update related logic and remove obsolete test coverage entries.

…mbers` and update encryption parameter handling logic.

…bleIncompatibleEncryption` and `compareVersions` to `QPDFWriter::Members`. Remove outdated test coverage entries.

… shared helper retrieval, validation methods, and update usages across the codebase. Remove unused test coverage entries.

…t. Add shared helper retrieval, validation methods, and update usages across the codebase.

…le handling. Add shared helper retrieval, validation methods, and update usages across the codebase.

Integrate `QPDFPageLabelDocumentHelper` with `QPDF` for improved page label handling. Add methods for retrieving shared helper instances, validating page label structures, and streamline usage throughout the codebase.

…, remove redundant `QTC::TC` call, and simplify type usage.

…y, and simplify implementation.

…actor implementation to simplify null handling and align with API conventions.

…ctionary key access, and simplify null handling logic.