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`.d2`

1 claimant 1 primary 0 secondary unambiguous primary

SWH popularity

From the SWH-MSR-ARV dataset (Desmazières, Di Cosmo, Lorentz, MSR 2025; file nb_extensions_alphanum.csv) — one row per (ext, year) in the full SWH archive. Case-aggregated. citation.

4.3K

total occurrences

1.3K

since 2019 (31.7%)

1995–2023

years active

Case variants in archive: .d2 (4.1K), .D2 (129) — aggregated above.

Attribution status

This extension is attributed to D2 as primary by 1 authoritative claim.

Authoritative sources: ✓ Linguist ✗ Pygments · no claim ✗ Wikidata · no claim ✗ Wikipedia · no claim

Disagree or have a correction? Open a labelling issue.

Claimants (1)

Languages that list .d2 among their extensions. Strength reflects whether the upstream source treated it as their primary extension.

Language	Source	Strength
D2	linguist	primary

SWH-mined examples (1)

Real archived programs with this extension, byte-verified against the SWH archive. Useful for deciding what this extension actually is when the attribution is uncertain.

implementation-components.d2 · 2510 B · seen 2× in SWH

predicted: D2 via unique-primary

swh:1:cnt:e82e05751feab344a7be7a71de6b6be49ddd6f5a;origin=https://github.com/Adhalianna/wit;anchor=swh:1:rev:db89a716a47785862b9324c2311b940e3027d6c5;path=/docs/paper/img/implementation-components.d2

Open in SWH · Raw bytes