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/c_02.dump b/runtime/syntax/testdir/dumps/c_02.dump
index 72ab11f..4fcaaeb 100644
--- a/runtime/syntax/testdir/dumps/c_02.dump
+++ b/runtime/syntax/testdir/dumps/c_02.dump
@@ -1,9 +1,10 @@
-|#+0#e000e06#ffffff0|i|f| |(|d|e|f|i|n|e|d|(|U|N|I|X|)| ||@1| |d|e|f|i|n|e|d|(|V|M|S|)@1| |&@1| |!|d|e|f|i|n|e|d|(|N|O|_|V|I|M|_|M|A|I|N|)| +0#0000000&@14
+| +0&#ffffff0@74
+|#+0#e000e06&|i|f| |(|d|e|f|i|n|e|d|(|U|N|I|X|)| ||@1| |d|e|f|i|n|e|d|(|V|M|S|)@1| |&@1| |!|d|e|f|i|n|e|d|(|N|O|_|V|I|M|_|M|A|I|N|)| +0#0000000&@14
|s+0#00e0003&|t|a|t|i|c| +0#0000000&|i+0#00e0003&|n|t| +0#0000000&|f|i|l|e|_|o|w|n|e|d|(|c+0#00e0003&|h|a|r| +0#0000000&|*|f|n|a|m|e|)|;| @39
|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
|s+0#00e0003&|t|a|t|i|c| +0#0000000&|v+0#00e0003&|o|i|d| +0#0000000&|m|a|i|n|e|r@1|(|i+0#00e0003&|n|t|,+0#0000000&| |c|h|a|r|_|u| |*|)|;| @39
-|s+0#00e0003&|t|a|t|i|c| +0#0000000&|v+0#00e0003&|o|i|d| +0#0000000&|e|a|r|l|y|_|a|r|g|_|s|c|a|n|(|m|p|a|r|m|_|T| |*|p|a|r|m|p|)|;| @31
->#+0#e000e06&|i|f|n|d|e|f| |N|O|_|V|I|M|_|M|A|I|N| +0#0000000&@55
+>s+0#00e0003&|t|a|t|i|c| +0#0000000&|v+0#00e0003&|o|i|d| +0#0000000&|e|a|r|l|y|_|a|r|g|_|s|c|a|n|(|m|p|a|r|m|_|T| |*|p|a|r|m|p|)|;| @31
+|#+0#e000e06&|i|f|n|d|e|f| |N|O|_|V|I|M|_|M|A|I|N| +0#0000000&@55
|s+0#00e0003&|t|a|t|i|c| +0#0000000&|v+0#00e0003&|o|i|d| +0#0000000&|u|s|a|g|e|(|v+0#00e0003&|o|i|d|)+0#0000000&|;| @50
|s+0#00e0003&|t|a|t|i|c| +0#0000000&|v+0#00e0003&|o|i|d| +0#0000000&|p|a|r|s|e|_|c|o|m@1|a|n|d|_|n|a|m|e|(|m|p|a|r|m|_|T| |*|p|a|r|m|p|)|;| @27
|s+0#00e0003&|t|a|t|i|c| +0#0000000&|v+0#00e0003&|o|i|d| +0#0000000&|c|o|m@1|a|n|d|_|l|i|n|e|_|s|c|a|n|(|m|p|a|r|m|_|T| |*|p|a|r|m|p|)|;| @28
@@ -16,5 +17,4 @@
|s+0#00e0003&|t|a|t|i|c| +0#0000000&|v+0#00e0003&|o|i|d| +0#0000000&|s|o|u|r|c|e|_|s|t|a|r|t|u|p|_|s|c|r|i|p|t|s|(|m|p|a|r|m|_|T| |*|p|a|r|m|p|)|;| @23
|s+0#00e0003&|t|a|t|i|c| +0#0000000&|v+0#00e0003&|o|i|d| +0#0000000&|m|a|i|n|_|s|t|a|r|t|_|g|u|i|(|v+0#00e0003&|o|i|d|)+0#0000000&|;| @41
|s+0#00e0003&|t|a|t|i|c| +0#0000000&|v+0#00e0003&|o|i|d| +0#0000000&|c|h|e|c|k|_|s|w|a|p|_|e|x|i|s|t|s|_|a|c|t|i|o|n|(|v+0#00e0003&|o|i|d|)+0#0000000&|;| @31
-|#+0#e000e06&| |i|f|d|e|f| |F|E|A|T|_|E|V|A|L| +0#0000000&@57
-@57|3|7|,|1| @9|2|9|%|
+@57|3|6|,|1| @9|2|8|%|