Bug #21188: PRISM does not end reading from tty with ^D twice

• Status: Assigned
• Assignee: prism
• Target version: -
• Backport: 3.1: DONTNEED, 3.2: DONTNEED, 3.3: DONTNEED, 3.4: REQUIRED

[nobu (Nobuyoshi Nakada)]

When reading from tty, ^D ends the text without the newline.

$ cat
a

Typing ^D here, only "a" is sent without a newline, and cat echos back it.
Then by typing ^D again, an empty read that means EOF causes cat to exit.

ruby --parser=parse.y behaves in this manner:

$ ruby --parser=parse.y
p __FILE__"-"

Typing ^D twice just after __FILE__, and p prints "-".
However prism requires ^D thrice.

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Assigned