COPYRIGHTS
==========

The zuyaml R package as a whole
------------------------------

  Copyright (c) 2026 Pedro Baltazar

  Released under the MIT License. See the LICENSE file for the copyright
  holder and year, and LICENSE.md for the full license text.


Bundled third-party code: cyaml
-------------------------------

  Files:    src/cyaml.c, src/cyaml.h, src/cyaml_emitter.c,
            src/cyaml_events.c, src/cyaml_internal.h, src/cyaml_json.c,
            src/cyaml_modify.c, src/cyaml_parser.c, src/cyaml_path.c,
            src/cyaml_utf8.c, src/cyaml_utf8.h

  Upstream: https://github.com/andrewmd5/cyaml
  Version:  v0.1.3
  Commit:   0672e81b809bc3dfd1d4f57ba0fcfbb20c60ae70

  Copyright (c) 2025 Andrew Sampson

  Released under the MIT License, reproduced in full below.

  Modifications made when bundling are limited to the minimum required for
  compatibility with R, are individually documented, and are recorded in
  inst/cyaml-VERSION. As of the version noted above these are:

    - src/cyaml_internal.h: the CYAML_ASSERT and CYAML_UNREACHABLE macros
      are redirected from fprintf(stderr, ...) + abort() to an R error
      condition, because CRAN policy prohibits compiled code that aborts
      the process or writes to stderr.

    - src/cyaml_emitter.c: emit_scalar() no longer promotes a plain scalar
      spelled null/true/false/~ to double-quoted. Upstream, that promotion
      makes a boolean built with cyaml_new_bool() emit as the string
      "true". zuyaml selects scalar styles before building, so the
      decision has already been made by the caller.

    - src/cyaml.c: cyaml_doc_append() no longer calls memcpy() when there
      is nothing to copy. Appending zero bytes to a document whose buffer
      has not been allocated yet passes a NULL destination to memcpy(),
      which is undefined behaviour; UndefinedBehaviorSanitizer reports it.

    - src/cyaml_utf8.c: cyaml_str_to_i64() no longer negates INT64_MIN in
      int64_t. The magnitude of INT64_MIN is admitted by the bound check
      but its negation overflows, which is undefined behaviour;
      UndefinedBehaviorSanitizer reports it on the ordinary literal
      -9223372036854775808.

    - src/cyaml.c: cyaml_scalar_str() returns the span verbatim for a
      document that was built rather than parsed. The processing it
      otherwise applies -- folding line breaks into spaces, dropping
      whitespace before a break, decoding quote and escape sequences --
      reads the span as YAML source, which is right for a parsed document
      and wrong for a built one, where the span is the literal string the
      caller supplied. Without this, any string containing a line break
      was corrupted on emit.

  No other upstream source file is modified. Upstream files are otherwise
  bundled verbatim.

  ---------------------------------------------------------------------

  MIT License

  Copyright (c) 2025 Andrew Sampson

  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.