From 1df96bd61b56734d7fc7089a44151d07b8da10e2 Mon Sep 17 00:00:00 2001
From: BurdetteLamar <burdettelamar@yahoo.com>
Date: Mon, 27 Oct 2025 20:43:15 +0100
Subject: [PATCH 1/3] [DOC] Doc for StringIO#each_codepoint

---
 ext/stringio/stringio.c | 40 ++++++++++++++++++++++++++++++++++++----
 1 file changed, 36 insertions(+), 4 deletions(-)

diff --git a/ext/stringio/stringio.c b/ext/stringio/stringio.c
index 5c6568a..ba8bbaf 100644
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@@ -1186,10 +1186,42 @@ strio_each_char(VALUE self)
  * call-seq:
  *   each_codepoint {|codepoint| ... } -> self
  *
- * With a block given, calls the block with each remaining codepoint in the stream;
- * see {Codepoint IO}[rdoc-ref:IO@Codepoint+IO].
- *
- * With no block given, returns an enumerator.
+ * With a block given, calls the block with each successive codepoint from self;
+ * sets the position to end-of-stream;
+ * returns +self+.
+ *
+ * Each codepoint is the integer value for a character; returns self:
+ *
+ *   codepoints = []
+ *   strio = StringIO.new('hello')
+ *   strio.each_codepoint {|codepoint| codepoints.push(codepoint) }
+ *   strio.eof? # => true
+ *   codepoints # => [104, 101, 108, 108, 111]
+ *   codepoints = []
+ *   strio = StringIO.new('тест')
+ *   strio.each_codepoint {|codepoint| codepoints.push(codepoint) }
+ *   codepoints # => [1090, 1077, 1089, 1090]
+ *   codepoints = []
+ *   strio = StringIO.new('こんにちは')
+ *   strio.each_codepoint {|codepoint| codepoints.push(codepoint) }
+ *   codepoints # => [12371, 12435, 12395, 12385, 12399]
+ *
+ * Position in the stream matters:
+ *
+ *   codepoints = []
+ *   strio = StringIO.new('こんにちは')
+ *   strio.getc # => "こ"
+ *   strio.pos  # => 3
+ *   strio.each_codepoint {|codepoint| codepoints.push(codepoint) }
+ *   codepoints # => [12435, 12395, 12385, 12399]
+ *
+ * When at end-of-stream, the block is not called:
+ *
+ *   strio.eof? # => true
+ *   strio.each_codepoint {|codepoint| fail 'Boo!' }
+ *   strio.eof? # => true
+ *
+ * With no block given, returns a new {Enumerator}[https://docs.ruby-lang.org/en/master/Enumerator.html].
  */
 static VALUE
 strio_each_codepoint(VALUE self)

From d633d855cd859072b6c527e1d6a8a7743230969e Mon Sep 17 00:00:00 2001
From: BurdetteLamar <burdettelamar@yahoo.com>
Date: Mon, 27 Oct 2025 20:46:02 +0100
Subject: [PATCH 2/3] [DOC] Doc for StringIO#each_codepoint

---
 ext/stringio/stringio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ext/stringio/stringio.c b/ext/stringio/stringio.c
index ba8bbaf..a4548fb 100644
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@@ -1222,6 +1222,8 @@ strio_each_char(VALUE self)
  *   strio.eof? # => true
  *
  * With no block given, returns a new {Enumerator}[https://docs.ruby-lang.org/en/master/Enumerator.html].
+ *
+ * Related: StringIO#each_byte, StringIO.each_char, StringIO.each_line.
  */
 static VALUE
 strio_each_codepoint(VALUE self)

From 4ba9c6f45478478544f805887fd65563ca4de8ed Mon Sep 17 00:00:00 2001
From: Sutou Kouhei <kou@cozmixng.org>
Date: Tue, 28 Oct 2025 12:08:47 +0900
Subject: [PATCH 3/3] Fix separator

---
 ext/stringio/stringio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/stringio/stringio.c b/ext/stringio/stringio.c
index a4548fb..e8cbafe 100644
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@@ -1223,7 +1223,7 @@ strio_each_char(VALUE self)
  *
  * With no block given, returns a new {Enumerator}[https://docs.ruby-lang.org/en/master/Enumerator.html].
  *
- * Related: StringIO#each_byte, StringIO.each_char, StringIO.each_line.
+ * Related: StringIO#each_byte, StringIO#each_char, StringIO#each_line.
  */
 static VALUE
 strio_each_codepoint(VALUE self)