84 lines
4.1 KiB
Markdown
84 lines
4.1 KiB
Markdown
# Data and third-party provenance
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This file records what can be established from repository contents and
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history. It does not assign a license to original strans source code.
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## Input maps and dictionaries
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`map/hira.map`, `map/kata.map`, and the original map data entered the history
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in commit `cc157c0b3c33506d1cbf5bd251ddc6a9ca909081`, whose subject says the
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maps came from 9front. That commit does not identify a 9front revision or
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carry a separate data license. `map/telex.map` is generated by
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`map/mktelex.py`; Vietnamese behavior is retained for compatibility.
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`map/emoji.dict` is generated deterministically from the repository-maintained
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`map/emoji.src` by `map/mkemoji`. No external dataset is required.
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`map/hanja.src` is a single-character subset of libhangul's
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`data/hanja/hanja.txt` from release tag `libhangul-0.2.0`. Its immutable
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identifiers are:
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- annotated tag object: `20afc38922e3595ee3ed5b186f2ea05afe663763`
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- peeled commit: `41c702f5d3581325b646ef6249f1f641b0427ae0`
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- input blob: `199cfd70c4b306257ac2e018714a1285f7cf0ed3`
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- input SHA-256: `dd44dcc856cf542b1022d0f39c2e9b9f8805fdcc5923be80f04849ed97ce0996`
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`map/libhangul2hanja` keeps only a one-syllable modern Hangul reading paired
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with one BMP Hanja rune. It writes one
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`Hanja<TAB>Hangul syllable` pair per row in upstream order; word entries are
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not part of this data. `map/mkhanja` groups those rows by reading for the
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runtime dictionary without changing candidate order, retaining the first 32
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candidates supported by the engine. Exact import and regeneration commands
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are in `map/README`.
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The upstream data header is BSD 3-Clause licensed, copyright 2005, 2006 Choe
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Hwanjin. Its complete license text is in
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`LICENSES/BSD-3-Clause-libhangul-hanja.txt`.
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`map/kanji.dict` identifies itself as SKK Medium dictionary version 8.1,
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May 24, 1995, rearranged for Plan 9 ktrans by Kenji Okamoto on February 17,
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2000. Its header names its copyright holders and grants GPL version 2 or
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later. The complete GPL version 2 text is in
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`LICENSES/GPL-2.0-or-later.txt`; the dictionary header supplies the
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"or later" option. `map/README` records the exact repository history,
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repairs made to this copy, and the reproducible procedure for importing a
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new SKK revision.
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## Fonts
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No font binaries are bundled. The daemon asks Pango and Fontconfig to select
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from the user's normal system font set. Pango shapes each complete string and
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selects glyph fallback. `font/PROVENANCE` retains the exact checksums, source
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revisions, and license records for the three Noto faces that were formerly
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stored in the repository.
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The Docker renderer tests obtain their fonts from signed Arch packages rather
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than the source checkout. On August 14, 2026 the tested package contract was:
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- `noto-fonts-emoji` `1:2.051-1`, providing
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`/usr/share/fonts/noto/NotoColorEmoji.ttf` (SHA-256
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`72a635cb3d2f3524c51620cdde406b217204e8a6a06c6a096ff8ed4b5fd6e27b`);
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- `ttf-dejavu` `2.37+18+g9b5d1b2f-8`, providing
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`/usr/share/fonts/TTF/DejaVuSans.ttf` (SHA-256
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`6038a160b491e121c1f12c7bccb4a9c8730296e3adc1086a059404ed84b7451c`);
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- `ttf-jigmo` `20250912-1`, providing
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`/usr/share/fonts/TTF/Jigmo.ttf` (SHA-256
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`c8f295b9bd8f9f117a76b3a454aaaa1bb5b4babc18e254978c6deb88464e40cf`)
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and `/usr/share/fonts/TTF/Jigmo2.ttf` (SHA-256
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`5da3582efe77e22073b86b3b86b556d7111148a76b957cfb53318a91da2efff0`).
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Pacman validates the package checksums and repository signatures. Noto Color
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Emoji supplies the color and shaped-sequence coverage; DejaVu Sans supplies
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ASCII, Jigmo supplies Hangul and BMP CJK, and Jigmo2 supplies U+2000B. Their
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installed license files are `/usr/share/licenses/noto-fonts-emoji/LICENSE`,
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`/usr/share/licenses/ttf-dejavu/LICENSE`, and
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`/usr/share/licenses/ttf-jigmo/LICENSE.txt`. The packages identify their terms
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as OFL-1.1-no-RFN, the DejaVu custom license, and CC0 1.0, respectively. These
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packages are test fixtures, not names or paths hard-coded into the daemon.
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## Git submodules
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`cutest` is pinned by the repository as the unit-test framework. XIM uses
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the system xcb-imdkit and xcb-util libraries at build time; those system
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libraries are not bundled by this repository.
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