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new file mode 100644
index 0000000..d1bc96cf
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new file mode 100644
index 0000000..1d0823f
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new file mode 100644
index 0000000..8afcbba
--- /dev/null
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diff --git a/runtime/syntax/testdir/dumps/vim9_legacy_header_00.dump b/runtime/syntax/testdir/dumps/vim9_legacy_header_00.dump
new file mode 100644
index 0000000..2f682d9
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim9_legacy_header_00.dump
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diff --git a/runtime/syntax/testdir/dumps/vim9_legacy_header_99.dump b/runtime/syntax/testdir/dumps/vim9_legacy_header_99.dump
new file mode 100644
index 0000000..d400e31
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim9_legacy_header_99.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_00.dump b/runtime/syntax/testdir/dumps/vim_00.dump
new file mode 100644
index 0000000..852148f
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_00.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_99.dump b/runtime/syntax/testdir/dumps/vim_99.dump
new file mode 100644
index 0000000..8e9320c
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_99.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_commands_31.dump b/runtime/syntax/testdir/dumps/vim_ex_commands_31.dump
index 07075f7..3711988 100644
--- a/runtime/syntax/testdir/dumps/vim_ex_commands_31.dump
+++ b/runtime/syntax/testdir/dumps/vim_ex_commands_31.dump
@@ -5,7 +5,7 @@
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_commands_64.dump b/runtime/syntax/testdir/dumps/vim_ex_commands_64.dump
index 5561d99..bf3df8d 100644
--- a/runtime/syntax/testdir/dumps/vim_ex_commands_64.dump
+++ b/runtime/syntax/testdir/dumps/vim_ex_commands_64.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_00.dump b/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_00.dump
new file mode 100644
index 0000000..57b0216
--- /dev/null
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_01.dump b/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_01.dump
new file mode 100644
index 0000000..1b0d7c9
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_01.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_02.dump b/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_02.dump
new file mode 100644
index 0000000..7de6ffb
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_02.dump
@@ -0,0 +1,20 @@
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_99.dump b/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_99.dump
new file mode 100644
index 0000000..f8759da
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_ex_comment-vim9_99.dump
@@ -0,0 +1,20 @@
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_comment_00.dump b/runtime/syntax/testdir/dumps/vim_ex_comment_00.dump
new file mode 100644
index 0000000..a1c1880
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_ex_comment_00.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_comment_01.dump b/runtime/syntax/testdir/dumps/vim_ex_comment_01.dump
new file mode 100644
index 0000000..513f64c
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_ex_comment_01.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_comment_02.dump b/runtime/syntax/testdir/dumps/vim_ex_comment_02.dump
new file mode 100644
index 0000000..e2b6092
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_ex_comment_02.dump
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diff --git a/runtime/syntax/testdir/dumps/vim_ex_comment_99.dump b/runtime/syntax/testdir/dumps/vim_ex_comment_99.dump
new file mode 100644
index 0000000..e9bcabe
--- /dev/null
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+|"+0#0000e05&| |I|s@1|u|e| |#| |#|9|5|8|7| +0#0000000&@59
+@75
+|d+0#af5f00255&|e|f| +0#0000000&|C|o|m@1|e|n|t|T|i|t|l|e|(+0#e000e06&|)| +0#0000000&@56
+| +0#0000e05&@1|#| +0#0000000&|T+0#e000e06&|i|t|l|e|:| +0#0000e05&|.@2| +0#0000000&@60
+>e+0#af5f00255&|n|d@1|e|f| +0#0000000&@68
+@57|4|5|,|1| @9|B|o|t| 
diff --git a/runtime/syntax/testdir/dumps/vim_keymap_01.dump b/runtime/syntax/testdir/dumps/vim_keymap_01.dump
index 9a7a833..a07bfc4 100644
--- a/runtime/syntax/testdir/dumps/vim_keymap_01.dump
+++ b/runtime/syntax/testdir/dumps/vim_keymap_01.dump
@@ -17,4 +17,4 @@
 |"+0#0000e05&| |V|i|m|-|s|c|r|i|p|t| |c|o|m@1|e|n|t| |c|h|a|r|a|c|t|e|r|s| @30| +0#0000000&@12
 |#| |<+0#e000e06&|c|h|a|r|-|0|x|0@1|a|3|>| +0#0000000&@15|L+0#0000e05&|i|n|e| |s|h|o|u|l|d| |n|o|t| |m|a|t|c|h| |a|s| |a| |V|i|m|9|-|s|c|r|i|p|t| |c|o|m@1|e
 |n|t| +0#0000000&@72
-@57|1|9|,|1| @9|9|3|%| 
+@57|1|9|,|1| @9|8|7|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_keymap_99.dump b/runtime/syntax/testdir/dumps/vim_keymap_99.dump
index ad6b5a5..1b27d57 100644
--- a/runtime/syntax/testdir/dumps/vim_keymap_99.dump
+++ b/runtime/syntax/testdir/dumps/vim_keymap_99.dump
@@ -1,6 +1,4 @@
-|a+0&#ffffff0| |A| @3|B+0#0000e05&|a|s|i|c| |m|a|p@1|i|n|g| @38| +0#0000000&@15
-|'|a| |á| @2|M+0#0000e05&|o|r|e| |t|h|a|n| |o|n|e| |c|h|a|r| |i|n| |f|i|r|s|t| |c|o|l|u|m|n| @10| +0#0000000&@22
-@75
+| +0&#ffffff0@74
 |"+0#0000e05&| |S|p|e|c|i|a|l| |n|o|t|a|t|i|o|n| @56
 @60| +0#0000000&@14
 |<+0#e000e06&|c|h|a|r|-|6|2|>| +0#0000000&@5|B| @14|S+0#0000e05&|p|e|c|i|a|l| |n|o|t|a|t|i|o|n| |a|l@1|o|w|e|d| |i|n| |L|H|S| |-| |d|e|c|i|m|a|l| @2
@@ -15,6 +13,8 @@
 |"+0#0000e05&| |V|i|m|-|s|c|r|i|p|t| |c|o|m@1|e|n|t| |c|h|a|r|a|c|t|e|r|s| @30| +0#0000000&@12
 |#| |<+0#e000e06&|c|h|a|r|-|0|x|0@1|a|3|>| +0#0000000&@15|L+0#0000e05&|i|n|e| |s|h|o|u|l|d| |n|o|t| |m|a|t|c|h| |a|s| |a| |V|i|m|9|-|s|c|r|i|p|t| |c|o|m@1|e
 |n|t| +0#0000000&@72
->\|"| |“| @18|L+0#0000e05&|i|n|e| |s|h|o|u|l|d| |n|o|t| |m|a|t|c|h| |a|s| |a| |l|e|g|a|c|y|-|s|c|r|i|p|t| |c|o|m@1|e|n|t| | +0#0000000&@2
-|~+0#4040ff13&| @73
-| +0#0000000&@56|2|6|,|1| @9|B|o|t| 
+|\|"| |“| @26|L+0#0000e05&|i|n|e| |s|h|o|u|l|d| |n|o|t| |m|a|t|c|h| |a|s| |a| |l|e|g|a|c|y|-|s|c|r|i|p|t| |c|o|m
+@1|e|n|t| | +0#0000000&@69
+>:| |"| @27|L+0#0000e05&|i|n|e| |s|h|o|u|l|d| |n|o|t| |m|a|t|c|h| |a|s| |a| |l|e|g|a|c|y|-|s|c|r|i|p|t| |c|o|m
+@1|e|n|t| +0#0000000&@70
+@57|2|7|,|1| @9|B|o|t|