runtime(syntax-tests): Allow for folded and wrapped lines in syntax test files
The current implementation falls short for syntax test files
on two accounts:
1. With folded lines -- some lines before folded lines are
unnecessarily repeated in generated dump files because
closed folded lines are always treated as opened for the
cursor to move _in_ instead of to move _over_ them.
2. With wrapped lines (longer than 75 columns) -- some lines
are omitted in generated dump files because calculations
for the cursor progress and its movement commands only
refer to file lines and not their layout within a 20x75
buffer (less &cmdheight).
As an alternative, we abandon deterministic (and inaccurate
at times) calculations for the cursor progress and, instead,
advance the cursor by as much as before for a single dump
file, but now rely on marking the last visible line and
additional movement to position lines at desired offsets,
carefully preserving compatibility for the &scrolloff and
&ruler values inherited from defaults.vim. The parent Vim
process will keep track of progress through a syntax test
file made by its child process ("terminal") by reading the
rightmost end of the ruler line from the terminal buffer,
looking for " All " or " Bot " for its cue to finish dump
file generation.
With these changes applied, the lossless line length limit
will be raised from 75 to 1425 (for a 19x75 view) columns.
Also, prefer "lastline" to "truncate" for &display; hiding
the content of any last _long_ line in a view goes against
the purpose of syntax file testing -- all lines should be
recorded.
related: #15150
fixes: #14245
Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/testdir/dumps/html_03.dump b/runtime/syntax/testdir/dumps/html_03.dump
index 4953d71..6883fd4 100644
--- a/runtime/syntax/testdir/dumps/html_03.dump
+++ b/runtime/syntax/testdir/dumps/html_03.dump
@@ -1,9 +1,11 @@
-|<+0#00e0e07#ffffff0|f+0#af5f00255&|o|r|m|>+0#00e0e07&|<|/|f+0#af5f00255&|o|r|m|>+0#00e0e07&| +0#0000000&@61
+|<+0#00e0e07#ffffff0|f+0#af5f00255&|i|g|u|r|e|>+0#00e0e07&|<|/|f+0#af5f00255&|i|g|u|r|e|>+0#00e0e07&| +0#0000000&@57
+|<+0#00e0e07&|f+0#af5f00255&|o@1|t|e|r|>+0#00e0e07&|<|/|f+0#af5f00255&|o@1|t|e|r|>+0#00e0e07&| +0#0000000&@57
+|<+0#00e0e07&|f+0#af5f00255&|o|r|m|>+0#00e0e07&|<|/|f+0#af5f00255&|o|r|m|>+0#00e0e07&| +0#0000000&@61
|<+0#00e0e07&|h+0#af5f00255&|1|>+0#00e0e07&|H+0#0000000&|e|a|d|i|n|g| |L|e|v|e|l| |1|<+0#00e0e07&|/|h+0#af5f00255&|1|>+0#00e0e07&| +0#0000000&@50
|<+0#00e0e07&|h+0#af5f00255&|2|>+0#00e0e07&|H+0#0000000&|e|a|d|i|n|g| |L|e|v|e|l| |3|<+0#00e0e07&|/|h+0#af5f00255&|2|>+0#00e0e07&| +0#0000000&@50
-|<+0#00e0e07&|h+0#af5f00255&|3|>+0#00e0e07&|H+0#0000000&|e|a|d|i|n|g| |L|e|v|e|l| |4|<+0#00e0e07&|/|h+0#af5f00255&|3|>+0#00e0e07&| +0#0000000&@50
+><+0#00e0e07&|h+0#af5f00255&|3|>+0#00e0e07&|H+0#0000000&|e|a|d|i|n|g| |L|e|v|e|l| |4|<+0#00e0e07&|/|h+0#af5f00255&|3|>+0#00e0e07&| +0#0000000&@50
|<+0#00e0e07&|h+0#af5f00255&|4|>+0#00e0e07&|H+0#0000000&|e|a|d|i|n|g| |L|e|v|e|l| |4|<+0#00e0e07&|/|h+0#af5f00255&|4|>+0#00e0e07&| +0#0000000&@50
-><+0#00e0e07&|h+0#af5f00255&|5|>+0#00e0e07&|H+0#0000000&|e|a|d|i|n|g| |L|e|v|e|l| |5|<+0#00e0e07&|/|h+0#af5f00255&|5|>+0#00e0e07&| +0#0000000&@50
+|<+0#00e0e07&|h+0#af5f00255&|5|>+0#00e0e07&|H+0#0000000&|e|a|d|i|n|g| |L|e|v|e|l| |5|<+0#00e0e07&|/|h+0#af5f00255&|5|>+0#00e0e07&| +0#0000000&@50
|<+0#00e0e07&|h+0#af5f00255&|6|>+0#00e0e07&|H+0#0000000&|e|a|d|i|n|g| |L|e|v|e|l| |6|<+0#00e0e07&|/|h+0#af5f00255&|6|>+0#00e0e07&| +0#0000000&@50
|<+0#00e0e07&|h+0#af5f00255&|e|a|d|>+0#00e0e07&|<|/|h+0#af5f00255&|e|a|d|>+0#00e0e07&| +0#0000000&@61
|<+0#00e0e07&|h+0#af5f00255&|e|a|d|e|r|>+0#00e0e07&|<|/|h+0#af5f00255&|e|a|d|e|r|>+0#00e0e07&| +0#0000000&@57
@@ -15,6 +17,4 @@
|<+0#00e0e07&|i+0#af5f00255&|m|g|>+0#00e0e07&| +0#0000000&@69
|<+0#00e0e07&|i+0#af5f00255&|n|p|u|t|>+0#00e0e07&| +0#0000000&@67
|<+0#00e0e07&|i+0#af5f00255&|n|s|>+0#00e0e07&|<|/|i+0#af5f00255&|n|s|>+0#00e0e07&| +0#0000000&@63
-|<+0#00e0e07&|k+0#af5f00255&|b|d|>+0#00e0e07&|<|/|k+0#af5f00255&|b|d|>+0#00e0e07&| +0#0000000&@63
-|<+0#00e0e07&|l+0#af5f00255&|a|b|e|l|>+0#00e0e07&|<|/|l+0#af5f00255&|a|b|e|l|>+0#00e0e07&| +0#0000000&@59
-@57|5@1|,|1| @9|3|6|%|
+@57|5|3|,|1| @9|3|5|%|