Ignore unsupported CSI sequences

Instead of ignoring unexpected intermediates in CSI escape sequences,
the intermediates are now explicitly checked and the escape sequence is
rejected when an unexpected intermediate is found.

Fixes #2171.

5 files changed, 6 insertions, 0 deletions

diff --git a/alacritty_terminal/tests/ref.rs b/alacritty_terminal/tests/ref.rs
index fb87adb1..b6efb6a8 100644
--- a/alacritty_terminal/tests/ref.rs
+++ b/alacritty_terminal/tests/ref.rs
@@ -53,6 +53,7 @@ ref_tests! {
     grid_reset
     row_reset
     zerowidth
+    selective_erasure
 }
 
 fn read_u8<P>(path: P) -> Vec<u8>
diff --git a/alacritty_terminal/tests/ref/selective_erasure/alacritty.recording b/alacritty_terminal/tests/ref/selective_erasure/alacritty.recording
new file mode 100644
index 00000000..aae1560f
--- /dev/null
+++ b/alacritty_terminal/tests/ref/selective_erasure/alacritty.recording
@@ -0,0 +1,2 @@
+A[1"qB[2"qC[?2J

+A[1"qB[2"qC[?2K

diff --git a/alacritty_terminal/tests/ref/selective_erasure/config.json b/alacritty_terminal/tests/ref/selective_erasure/config.json
new file mode 100644
index 00000000..6fc49fd7
--- /dev/null
+++ b/alacritty_terminal/tests/ref/selective_erasure/config.json
@@ -0,0 +1 @@
+{"history_size":0}
\ No newline at end of file
diff --git a/alacritty_terminal/tests/ref/selective_erasure/grid.json b/alacritty_terminal/tests/ref/selective_erasure/grid.json
new file mode 100644
index 00000000..08632f7d
--- /dev/null
+++ b/alacritty_terminal/tests/ref/selective_erasure/grid.json
@@ -0,0 +1 @@
+{"raw":{"inner":[{"inner":[{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]}],"occ":0},{"inner":[{"c":"A","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":"B","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":"C","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]}],"occ":3},{"inner":[{"c":"A","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":"B","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":"C","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]},{"c":" ","fg":{"Named":"Foreground"},"bg":{"Named":"Background"},"flags":{"bits":0},"extra":[" "," "," "," "," "]}],"occ":3}],"zero":0,"visible_lines":2,"len":3},"cols":10,"lines":3,"display_offset":0,"scroll_limit":0,"max_scroll_limit":0,"url_highlight":null}
\ No newline at end of file
diff --git a/alacritty_terminal/tests/ref/selective_erasure/size.json b/alacritty_terminal/tests/ref/selective_erasure/size.json
new file mode 100644
index 00000000..58891d8a
--- /dev/null
+++ b/alacritty_terminal/tests/ref/selective_erasure/size.json
@@ -0,0 +1 @@
+{"width":70.0,"height":63.0,"cell_width":7.0,"cell_height":21.0,"padding_x":0.0,"padding_y":0.0,"dpr":1.0}
\ No newline at end of file