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Emery Hemingway 1cf0df255f bump version number 1 month ago
src Careful with those variable length tuples 1 month ago
tests XML conversion 2 months ago
upstream@2ff489d975 Add Spry VM module 3 months ago
.gitignore Schemas: use canonical meta-schema 3 months ago
.gitmodules Schemas: use canonical meta-schema 3 months ago Update documentation 3 months ago
UNLICENSE Unlicense 5 months ago
preserves.nimble bump version number 1 month ago


Nim implementation of the Preserves data language.


To parse or produce Preserves one should write a schema and generate a Nim module using the preserves_schema_nim utility. This module will contain Nim types corresponding to schema definitions. The toPreserve and fromPreserve routines will convert Nim types to and from Preserves. The decodePreserves, parsePreserves, encode, and $ routines will convert Preserve objects to and from binary and textual encoding.

To debug the toPreserves and fromPreserves routines compile with -d:tracePreserves.


  • preserves_schema_nim
  • preserves_encode
  • preserves_decode
  • preserves_from_json
  • preserves_to_json


preserves_encode is a multi-call binary that implements preserves_encode, preserves_decode, preserves_from_json, and preserves_to_json, so the appropriate symlinks should be created during packaging.