ludic/assets/tiled-fixtures/sewers.tmx
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feat(stdlib): Tiled P0 — XML reader + base64 decode + gzip framing (#67)
The three parsing primitives the TMX path needs that were not already in
the tree (zlib inflate + the JSON reader already shipped):

- Xml.* — a minimal, deterministic pure-Ludic XML reader for the
  element/attribute/CDATA subset TMX/TSX/TX use, spliced on demand. Handles
  nested elements, single/double-quoted attributes, text + <![CDATA[…]]>,
  comments, the <?xml?> prolog and <!DOCTYPE>, the five predefined entities
  and numeric character references.
- Base64.* — standard base64 (RFC 4648) decode + a matching pure-Ludic
  encoder; the decoder ignores the whitespace Tiled wraps into <data>.
  Splicing Base64.* also pulls in inflate.ludic so a plain tool can run the
  full base64 -> zlib/gzip decode chain.
- z_gunzip — gzip framing (RFC 1952) over the existing DEFLATE inflater:
  skip the 10-byte header + optional fields, inflate the body, ignore the
  CRC32/ISIZE trailer.

Golden corpus vendored under assets/tiled-fixtures/ (mapeditor/tiled
examples, attributed, + hand-authored multi-encoding fixtures). New
example library/tiled_p0.ludic proves all three (21 assertions); docs
pages + inventory added so check-impl stays green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-09-01 14:04:49 +03:00

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<?xml version="1.0" encoding="UTF-8"?>
<map version="1.0" orientation="orthogonal" width="50" height="50" tilewidth="24" tileheight="24">
<tileset firstgid="1" name="sewer_tileset" tilewidth="24" tileheight="24">
<image source="sewer_tileset.png" trans="ff00ff" width="192" height="217"/>
</tileset>
<layer name="Bottom" width="50" height="50">
<data encoding="base64" compression="zlib">
eJzt19kKwjAQBdDim0sFqwguL3Vf/sP//ySnkIFhSGrSdEnxPhyQxqJ32kySPMuyJTkZC5KLa2dyNEo1Lsds3wkl/4f+7V/0/f+Y40Je5GpUn2+J5NiQCdmO/HlMyYzMI3JwLUJx7drIsSIFWUfk4FrY3GvGuHb8vr4jcmhNcnAtpIflmmar3VA5nqaWMUKeQ1d9dyht59iRPTmMPEdpua8Put/Frh88P5q84zFkv/NZP2TOlOaH7Hc+64fMmdL8cPVbV9+tcn5MzpTmR0gv12uDbQ4MNT8AIA73Uq3v3hqLe2ldTx4D21k1tf2ubw59Vk1tX+KbQ59VXfuSlMn9SJHV70tS5jqrYu8BAAAAAAAAAABd+wIHfQq1
</data>
</layer>
<layer name="Top" width="50" height="50" opacity="0.49">
<data encoding="base64" compression="zlib">
eJzt1jsKgDAQQEELtVKvYuGvEDvvfya3MBeQQAzMwCPdsum2af5lL71AJv7xL7X+Y46WtzXayq7z2RGd0f2+V6a5bdRFfaZ5pQzRGE2lFwEAoArpDk7Veg+nOzjlHgYAAAAAIIcHvboDlQ==
</data>
</layer>
</map>