A multi-line paste into Python's REPL runs whole, back at its prompt

The Enter went on Python's first output after the paste, before it had
taken in the whole paste, and one Enter leaves a multi-line input at
... anyway. Python's output now only restarts a 100 ms quiet wait (the
250 ms fallback stays), and a paste of more than one line gets the second
Enter a block gets. fs.py runs print(11)\nprint(22), the same with a
trailing newline, and a for block followed by a statement in a real
python3, each back at >>>.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/pardes.zig b/src/pardes.zig
index d6859f86..289dcee0 100644
--- a/src/pardes.zig
+++ b/src/pardes.zig
@@ -1652,7 +1652,21 @@ test "a REPL bound for a language takes the exec made on a body in it; tags, Exe
     try std.testing.expectEqualStrings("\x1b[200~print(1)\x1b[201~", Sent.said(1));
     p.update(.{ .output = .{ .pane = 1, .bytes = "print(1)" } });
     Sent.drain(p);
+    // Python's echo only restarts a short wait: the Enter goes once the
+    // echo of the whole paste has gone quiet.
+    try std.testing.expectEqualStrings("", Sent.said(1));
+    p.now_ns = p.panes[1].?.repl_enter_due_ns;
+    p.update(.tick);
+    Sent.drain(p);
     try std.testing.expectEqualStrings("\r", Sent.said(1));
+    // A paste of more than one line gets the blank line a block gets.
+    _ = exec.executeFrom(p, 0, "print(11)\nprint(22)", true);
+    Sent.drain(p);
+    try std.testing.expectEqualStrings("\x1b[200~print(11)\nprint(22)\x1b[201~", Sent.said(1));
+    p.now_ns = p.panes[1].?.repl_enter_due_ns;
+    p.update(.tick);
+    Sent.drain(p);
+    try std.testing.expectEqualStrings("\r\r", Sent.said(1));
     // Nothing answering, it goes when its wait is up.
     _ = exec.executeFrom(p, 0, "print(2)", true);
     p.update(.tick); // on the clock: not yet, however old core time is