.fpp
2 claimants
1 primary
1 secondary
unambiguous primary
SWH popularity
Distinct files in the full Software Heritage archive (2026-06-04 export), dated by first appearance, following Desmazières, Di Cosmo, Lorentz (MSR 2025). Case-aggregated. citation.
57.9K
total files
29.3K
first seen 2021–2025 (50.6%)
2022
median year (half its files since)
Case variants in archive: .fpp (57.8K), .FPP (62), .Fpp (1), .fPp (1) — aggregated above.
Attribution status
This extension is attributed to fpp as primary by 1 authoritative claim.
Authoritative sources: ✓ Linguist ✗ Pygments · no claim ✗ Wikidata · no claim ✗ Wikipedia · no claim
Claimants (2)
Languages that list
.fpp among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| fpp | linguist | primary |
| fortran | linguist | secondary |
Disambiguation rules (2)
Linguist heuristics that decide, by content, which language a
.fpp file actually is.| Rule | Predicts | Kind | Predicates (truncated) | Measured on SWH |
|---|---|---|---|---|
h/linguist/.fpp/0 | fpp | predicates | [{"kind": "any", "regexes": ["^\\s*(active|passive|queued)\\s+component\\s", "^\\s*(module|topology|struct|enum|port|interface)\\s+[A-Za-z_$][A-Za-z0-9_]*\\s*\\{", "^\\s*instance\\s+[A-Za-z_$][A-Za-z0 | |
h/linguist/.fpp/1 | fortran | predicates | [{"kind": "any", "regexes": ["^(?i:[c*][^abd-z]| (subroutine|program|end|data)\\s|\\s*!)"]}] |
SWH-mined examples (0)
No archived examples for .fpp in our local mirror yet.