https://git.ruby-lang.org/ruby.git/commit/?id=aa8d393d8a

From aa8d393d8a69d1a5780d338692f75e2dd821c5b0 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Tue, 4 Jun 2019 09:24:17 +0900
Subject: EOF by 2 ^D on a TTY

Terminate the input from a TTY by 2 ^D at the middle of line, like
as many programs, `cat`, `perl` and so on, do.  By the first ^D,
the line will be sent without a newline, and then EOF will be send
by the next ^D.

diff --git a/parse.y b/parse.y
index 311bbba..a35b526 100644
--- a/parse.y
+++ b/parse.y
@@ -6015,6 +6015,10 @@ nextline(struct parser_params *p) https://github.com/ruby/ruby/blob/trunk/parse.y#L6015
 	if (p->eofp)
 	    return -1;
 
+	if (p->lex.pend > p->lex.pbeg && *(p->lex.pend-1) != '\n') {
+	    goto end_of_input;
+	}
+
 	if (!p->lex.input || NIL_P(v = lex_getline(p))) {
 	  end_of_input:
 	    p->eofp = 1;
diff --git a/ruby.c b/ruby.c
index 944b6c7..e016197 100644
--- a/ruby.c
+++ b/ruby.c
@@ -2011,7 +2011,7 @@ load_file_internal(VALUE argp_v) https://github.com/ruby/ruby/blob/trunk/ruby.c#L2011
 	else if (!NIL_P(c)) {
 	    rb_io_ungetbyte(f, c);
 	}
-	else {
+	if (NIL_P(c)) {
 	    argp->f = f = Qnil;
 	}
 	if (!(opt->dump & ~DUMP_BIT(version_v))) {
-- 
cgit v0.10.2


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