cursor-line gutter highlight: the line number on the cursor's row takes the tag style (tag_fg/tag_bg), resolved at render time from the theme like the rest of the chrome. Same row math as the cursor pass (pinned cur_row or emulator cursor + scroll), gated on active && !tag_edit so only the focused file pane shows it. New cursorline snap script + golden proves it follows j-movement; look-file/syntax style goldens regenerated (cursor-row gutter cells only). 19/19 snap green.

1 files changed, 124 insertions, 0 deletions

diff --git a/test/snapshots/cursorline.golden b/test/snapshots/cursorline.golden
new file mode 100644
index 00000000..f50617c8
--- /dev/null
+++ b/test/snapshots/cursorline.golden
@@ -0,0 +1,124 @@
+== snap top grid=100x30 cursor=7,2
+|Kill Newcol Tutor Debug Colors NextColor Dump
+|  nm /tmp/pardes-snap/cursorline/cwd/cur.txt Save   nm /tmp/pardes-snap/cursorline/cwd Del
+|     1 line 1
+|     2 line 2                                       cur.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|  nm /tmp/pardes-snap/cursorline/cwd Del
+|
+|  cur.txt
+|
+|
+|
+|    cur.txt
+|
+|
+|
+|  nm /tmp/pardes-snap/cursorline/cwd Del
+|
+|  cur.txt
+|
+|
+|
+|
+|
+|
+== style top
+|0: 0-44 #969696,#2c2a3e, 45-99 d,#2c2a3e,
+|1: 0-1 d,#6e4fd0, 2-49 #969696,#2c2a3e, 50-51 d,#383c54, 52-89 #969696,#2c2a3e, 90-99 d,#2c2a3e,
+|2: 0-1 d,#525252, 2-6 #969696,#2c2a3e, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|3: 0-1 d,#525252, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|4: 0-1 d,#525252, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|5: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|6: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|7: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|8: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|9: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|10: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|11: 0-1 d,#383c54, 2-39 #969696,#2c2a3e, 40-49 d,#2c2a3e, 50-51 d,#525252, 52-99 d,d,
+|12: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|13: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|14: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|15: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|16: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|17: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|18: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|19: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|20: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|21: 0-1 d,#383c54, 2-39 #969696,#2c2a3e, 40-49 d,#2c2a3e, 50-51 d,#525252, 52-99 d,d,
+|22: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|23: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|24: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|25: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|26: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|27: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|28: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|29: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+== snap down3 grid=100x30 cursor=7,5
+|Kill Newcol Tutor Debug Colors NextColor Dump
+|  nm /tmp/pardes-snap/cursorline/cwd/cur.txt Save   nm /tmp/pardes-snap/cursorline/cwd Del
+|     1 line 1
+|     2 line 2                                       cur.txt
+|     3 line 3
+|     4 line 4
+|     5 line 5
+|     6 line 6
+|     7 line 7
+|     8 line 8
+|     9 line 9
+|  nm /tmp/pardes-snap/cursorline/cwd Del
+|
+|  cur.txt
+|
+|
+|
+|    cur.txt
+|
+|
+|
+|  nm /tmp/pardes-snap/cursorline/cwd Del
+|
+|  cur.txt
+|
+|
+|
+|
+|
+|
+== style down3
+|0: 0-44 #969696,#2c2a3e, 45-99 d,#2c2a3e,
+|1: 0-1 d,#6e4fd0, 2-49 #969696,#2c2a3e, 50-51 d,#383c54, 52-89 #969696,#2c2a3e, 90-99 d,#2c2a3e,
+|2: 0-1 d,#525252, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|3: 0-1 d,#525252, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|4: 0-1 d,#525252, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|5: 0-1 d,#2a2a2a, 2-6 #969696,#2c2a3e, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|6: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|7: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|8: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|9: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|10: 0-1 d,#2a2a2a, 2-6 #5a5a5a,d, 7-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|11: 0-1 d,#383c54, 2-39 #969696,#2c2a3e, 40-49 d,#2c2a3e, 50-51 d,#525252, 52-99 d,d,
+|12: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|13: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|14: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|15: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|16: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|17: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|18: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|19: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|20: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|21: 0-1 d,#383c54, 2-39 #969696,#2c2a3e, 40-49 d,#2c2a3e, 50-51 d,#525252, 52-99 d,d,
+|22: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|23: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|24: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|25: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|26: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|27: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|28: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,
+|29: 0-1 d,#525252, 2-49 d,d, 50-51 d,#525252, 52-99 d,d,