From bf1cfb8e46860bbeda72f16e44ca8c34c2d8727c Mon Sep 17 00:00:00 2001
From: deathaxe <deathaxe82@gmail.com>
Date: Wed, 23 Apr 2025 19:26:34 +0200
Subject: [PATCH] Fix CSI + HPA sequence

This commit fixes `HPA` character, which is `U+0060` according to
https://vt100.net/docs/vt510-rm/HPA.html, but not `U+0027`.
---
 pyte/escape.py       |  3 ++-
 tests/test_stream.py | 28 ++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/pyte/escape.py b/pyte/escape.py
index 7dfd6b8..613eea0 100644
--- a/pyte/escape.py
+++ b/pyte/escape.py
@@ -149,4 +149,5 @@
 DECSTBM = "r"
 
 #: *Horizontal position adjust*: Same as :data:`CHA`.
-HPA = "'"
+HPA = "`"
+
diff --git a/tests/test_stream.py b/tests/test_stream.py
index 23eb357..960b8a6 100644
--- a/tests/test_stream.py
+++ b/tests/test_stream.py
@@ -332,3 +332,31 @@ def test_byte_stream_select_other_charset():
     # c) enable utf-8
     stream.select_other_charset("G")
     assert stream.use_utf8
+
+
+def test_csi_cha():
+    screen = pyte.Screen(10, 2)
+    stream = pyte.Stream(screen)
+    # before
+    assert screen.cursor.x == 0
+    assert screen.cursor.y == 0
+    assert screen.display[0] == "          "
+    # set cursor to column absolute
+    stream.feed("\x9b4`text")
+    assert screen.cursor.x == 7
+    assert screen.cursor.y == 0
+    assert screen.display[0] == "   text   "
+
+
+def test_csi_hpa():
+    screen = pyte.Screen(10, 2)
+    stream = pyte.Stream(screen)
+    # before
+    assert screen.cursor.x == 0
+    assert screen.cursor.y == 0
+    assert screen.display[0] == "          "
+    # set cursor to column absolute
+    stream.feed("\x9b4`text")
+    assert screen.cursor.x == 7
+    assert screen.cursor.y == 0
+    assert screen.display[0] == "   text   "