OpenSystemsDevelopment / qpdf

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.

…ng handling, and reduce reliance on `reinterpret_cast`.

… replace manual memory management with `std::string`.

…modern resource management.

…idate conditions, and enhance readability.

…oding flags, streamline filter logic, and simplify condition handling.

…ctionary handling, streamline filtering logic, and simplify length checks.

…gic, consolidate conditions, and enhance readability.

…e-returning overload, streamline calls, and simplify stream filtering checks.

…trailer handling, streamline trailer processing logic, and simplify related method calls.

…ream compression given that qpdf_mode is incompatible with linearization.

… `QPDF` parameter with `pdf` member, and simplify method calls.

…iter`, and simplify resource management.

…lace manual checks with `no_ci_stop_if`, and utilize `emplace_back` for improved clarity.

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

…directives across modules to improve clarity and enforce better assertion practices.

…page label processing logic, centralize label handling, and adjust related resource management.

…ges` sets with vector<bool> `Input::copied_pages`, centralize page tracking logic, adjust page processing, and simplify resource management.

…input, centralize page range parsing, and simplify page processing.

…and replace it with a setter that directly sets `Input::password`, centralize password handling, simplify file processing, and adjust related logic in `handlePageSpecs`.

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

…gic in `handlePageSpecs` and `new_selection`, and simplify page processing.

…alize handling in `Files::process_all`, and simplify `handlePageSpecs`.

…file handling in `Inputs`, and simplify related logic.

…lePageSpecs` and `new_selection`, and simplify page specification handling.

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

…zation, simplify `handlePageSpecs` and `new_section`, and streamline file processing logic.

…ce removal handling, and cleanup redundant code in `handlePageSpecs`.

…sing, and simplify page specification handling.

…date page handling logic in `Input`, and optimize page range processing.

…ing logic, and streamline password handling and verbose output.

…ine file handling and resource management logic.

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

…ange handling, and cleanup obsolete logic.

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

…ageDocumentHelper` dependency, simplifying page and form field operations, and updating test coverage.

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