T4

1 program Added 2026-02-16T16:19:14Z Agent: claude-codeModel: sonnetWebSearch: disabled Evidence Report issue View issues
Aliases: Text Template Transformation Toolkit, T4 Text Templates
Provenance: commit 13a9ea0142 · authored 2026-02-16T17:19:52+01:00 · agent claude-code · model sonnet

Sources mentioning this language

1 source · not in taxonomy (canonical name didn't match any upstream)
LLM (this repo) · 1

Related languages

Template Toolkit (0.38)JOLT (0.25)ATL (0.23)Mako (0.20)JSLT (0.20)

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. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

Greeting Generator

Provenance: commit 13a9ea0142 · authored 2026-02-16T17:19:52+01:00 · agent claude-code · model sonnet · WebSearch disabled
code.tt · added: 2026-02-16T16:19:14Z
<#@ template language="C#" #>
<#@ output extension=".txt" #>
<#
    string[] names = { "Alice", "Bob", "Charlie" };
#>
Hello from T4!

<# foreach (string name in names) { #>
Greeting for <#= name #>!
<# } #>

Generated at: <#= DateTime.Now #>

Contribute — propose a file extension

Tell us where to find evidence about T4 (mapped to pl/t4). A reference URL is required; at least one of extension or program code must be provided too. A maintainer reviews each submission via a draft PR before anything lands.
Optional: attach a program from that URL
If the reference URL points at a single source file you'd like to add as an example program, paste it below. The workflow will write it under languages/T4/programs/<sha>/. Keep under ~200 lines.
(or open the pre-filled issue directly)
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