[cedricvogel-leo]

Package P17: learners can hand in a solution without copying code.

What learners see. A new split button at the end of the button row:

• «In IDE öffnen» opens the block's current code as a copy in the glpython IDE (https://glpython-edu.github.io/) in a new tab. Tooltip: «Öffnet eine Kopie in der IDE – Änderungen dort wirken nicht hierher zurück.»
• ▾ → «IDE-Link kopieren» copies the same link and confirms with «Link kopiert ✓». Without a clipboard (not allowed, or no API) the link appears in a field, focused and selected, under «Link zum Kopieren:».
• English via language: en: «Open in IDE», «Copy IDE link», «Link copied ✓».

The link. It is the IDE's share-link format: ?project= + lz-string-compressed {v: 1, name, mainFile, files}.

• Multi-file blocks: all files (and URL libraries, so their imports work there), and the file chosen in ▶'s ▾ menu as mainFile.
• Name: the project name is the slide's heading.

iPad Safari. The link is built and copied synchronously inside the tap's own handler (writeText, and window.open for the tab). That's why lz-string 1.5.0 (the IDE's version, SRI-pinned, from jsDelivr) is loaded once per page in advance. The button stays disabled until it has loaded.

Length limit. GitHub Pages answers 414 above 8192 characters of path and query. That's a program of roughly 5,000–30,000 characters, depending on how well it compresses. A longer link carries the project in #project= instead, which isn't sent to the server. This needs glpython-edu/glpython-edu.github.io#14, which teaches the IDE to read the fragment. Merge that first. Links that fit keep ?project= and work with the IDE as deployed today.

features=. A new value, ide. It's on without features=, and hidden in visual blocks. The README and examples/profiles.md add it to erkunden and rezept, as the course will.

A bug found on the way. LiaScript replaced the @1 in …/lz-string@1.5.0/… with the macro's argument (eval), so the script URL became lz-stringeval.5.0. The URL now uses @, and check-macro.mjs now flags @<digit> glued to a word ([\w.\/-]@[0-9]). Real placeholders always stand on their own, and nothing else in the macro matches.

Tested in the hosted LiaScript player (this macro served locally), each link opened in a fresh browser profile and run:

Case	Result
One block → «In IDE öffnen»	new tab with the IDE
One block → «IDE-Link kopieren»	«Link kopiert ✓», 250-char ?project= link, runs: Quadrat: 49
helfer.py + main.py + test.py, main.py chosen in ▶ ▾	all three files in the IDE, «Führt main.py aus», runs: Doppelt: 42
features=run,reset	no IDE button
35,567-char program	9,225-char link with #project= (as ?project=: HTTP 414); runs with #14's IDE: Funktionen: 400 36
writeText rejects / no clipboard API	link field shown, focused, fully selected
language: en	English labels, tooltip and confirmation

node scripts/check-macro.mjs passes. iPad Safari itself I couldn't test (no device); the code follows its rule (copy and open inside the tap handler).

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