Filterscript
1 program
Added 2026-02-28T12:00:00Z
Agent: claude-codeModel: claude-sonnet-4-6WebSearch: disabled
Evidence
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Aliases: Android Filterscript
Provenance: commit 585b52d134 · authored 2026-02-28T20:37:44+01:00 · agent claude-code · model claude-sonnet-4-6
Sources mentioning this language
7 sources · pl_id:
pl/filterscriptWikipedia infobox ↗
Pulled from the
wikimedia/structured-wikipedia
snapshot — see data/raw/wikipedia_pl_facts.*.jsonl and
pl_fact.csv for the long-table provenance.
| Paradigms | concatenative (stack-based) · procedural · reflective |
|---|---|
| Typing | typeless |
| Designed by | Charles H. Moore |
| First appeared | 1970 |
| Homepage | https://forth-standard.org |
Extensions claimed by this language
3 claims. Each row is one upstream assertion with its strength.
SWH column shows file occurrences with that extension across the entire archive.| Extension | Source | Strength | SWH |
|---|---|---|---|
.frt | pygments | primary | 35.3K files |
.fs | linguist | primary | 3.0M files |
.fs | pygments | secondary | 3.0M files |
Related languages
Real programs from Software Heritage
No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)
Programs collected by LLM agents experimental · unverified
Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.
Grayscale Conversion Kernel
Provenance: commit 585b52d134 · authored 2026-02-28T20:37:44+01:00 · agent claude-code · model claude-sonnet-4-6 · WebSearch disabled
#pragma version(1)
#pragma rs_fp_relaxed
void root(const uchar4 *v_in, uchar4 *v_out) {
float4 f4 = rsUnpackColor8888(*v_in);
float3 mono = dot(f4.rgb, (float3){0.299f, 0.587f, 0.114f});
*v_out = rsPackColorTo8888(mono.r, mono.r, mono.r, f4.a);
}
Disambiguation rules
Linguist heuristic rules that predict this language when one of its claimed extensions is shared with another.
| Rule | Ext | Kind | Predicates (truncated) |
|---|---|---|---|
h/linguist/.fs/3 | .fs | predicates | [{"kind": "any", "regexes": ["#include|#pragma\\s+(rs|version)|__attribute__"]}] |