OpenSystemsDevelopment / qpdf

…ted tests, documentation, and references across the codebase.

Enhance the `global` namespace by introducing `limit_errors` for tracking the number of exceeded limits. Update related tests and documentation to ensure functionality and clarity.

…pport for configurable global limits via `qpdf_global_get_uint32` and `qpdf_global_set_uint32`.

Document new release signing procedure

Check for C++-17 header compatibility in CI (fixes #1567)

Maintainer comment

Thanks to qooxzuub for the suggested update.

It is the user's responsibility to autoload bashcompinit. If we do it,
we may overwrite a custom complete function. If we don't do it at all,
it won't work out of the box.

This fixes debian bug
1111509, reported by Vincent Lefèvre.

Reported by Stephane Chazelas. Potentially sensitive arguments could
be leaked to the environment during completion computation.

Refactor error handling and simplify logic across multiple pipelines

- Replace `std::logic_error` and `std::runtime_error` with `util::assertion` and `util::no_ci_rt_error_if` for consistent error handling.

Refactor error handling in `Pipeline` and `QPDFXRefEntry`

…update `CMakeLists.txt` accordingly.

…n` and simplify logic

- Replace `std::logic_error` with `util::assertion` for consistency.
- Use `using namespace qpdf` for cleaner code.
- Update `test_62` to cover `Pipeline` output method.

Refactor AcroForm field traversal for robustness and add new fuzz case

- Modify `traverseField` to return `bool` for identifying invalid fields.
- Add `bad_fields` set to track and handle problematic fields.
- Improve error handling for invalid parent entries.

Add `libexempi8` dependency to test-pikepdf build script

Improve JSON schema validation and error reporting

- Add null pointer checks for schema objects.
- Refactor `checkSchemaInternal` for better readability and maintainability.
- Replace redundant error construction logic with lambda-based approach.
- Simplify array and dictionary schema handling.
- Remove unused test coverage statistics.

Introduce parameter validation for compression-level and jpeg-quality

- Add `to_int` utility to validate integer ranges for parameters.
- Enforce range checks: `compression-level` (1-9) and `jpeg-quality` (0-100).
- Enhance test coverage for invalid parameter scenarios.

Refactor `util::assertion` etc to accept forwarding references for im…

- Updated `assertion`, `internal_error_if`, and `no_ci_rt_error_if` to use templates and `std::forward`.

Enhance validation of xref entries for deleted objects.

Improve handling of xref stream anomalies and update tests.

Fix bug in #1595

Refactor error handling across codebase with `util::assertion` and `u…

- Standardize error handling by replacing repetitive throw statements with helper functions.
- Add test coverage for new helper functions in error handling.
- Enhance maintainability and readability with concise utilities.

Update header guards for `assert_test.h` and `assert_debug.h`

- Introduce distinct header guards to enable simultaneous inclusion of both headers.
- Update `README-maintainer.md` to document the changes .

Add `util::internal_error_if` for concise  handling of internal errors

- replace repetitive error handling with utility functions in BufferInputSource, OffsetBuffer, and QPDF_objects.

- Remove some "internal error" labels from errors that could be due to user logic errors.

Improve error handling for common PDF anomalies.

- Updated warning messages to provide clearer descriptions of common issues ("object has offset 0", "xref entry missing") and note that these are handled gracefully by qpdf.
- Adjusted logic in `QPDF_objects.cc` to identify and process `xref` stream-specific anomalies accurately.

Fixes #1594
Fixes #1292

Update release notes for #1587