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_04.dump b/runtime/syntax/testdir/dumps/c_04.dump
index 03804a5..1d2d511 100644
--- a/runtime/syntax/testdir/dumps/c_04.dump
+++ b/runtime/syntax/testdir/dumps/c_04.dump
@@ -1,9 +1,11 @@
-| +0&#ffffff0@3|N|_|(|"+0#e000002&|T|o@1| |m|a|n|y| |\+0#e000e06&|"|++0#e000002&|c|o|m@1|a|n|d|\+0#e000e06&|"|,+0#e000002&| |\+0#e000e06&|"|-+0#e000002&|c| |c|o|m@1|a|n|d|\+0#e000e06&|"| +0#e000002&|o|r| |\+0#e000e06&|"|-+0#e000002&@1|c|m|d| |c|o|m@1|a|n|d|\+0#e000e06&|"| +0#e000002&|a|r|g|u|m|e|n|t
+| +0&#ffffff0@3|N|_|(|"+0#e000002&|G|a|r|b|a|g|e| |a|f|t|e|r| |o|p|t|i|o|n| |a|r|g|u|m|e|n|t|"|)+0#0000000&|,| @34
+|#+0#e000e06&|d|e|f|i|n|e| |M|E|_|G|A|R|B|A|G|E| @13|3+0#e000002&| +0#0000000&@41
+@4|N|_|(|"+0#e000002&|T|o@1| |m|a|n|y| |\+0#e000e06&|"|++0#e000002&|c|o|m@1|a|n|d|\+0#e000e06&|"|,+0#e000002&| |\+0#e000e06&|"|-+0#e000002&|c| |c|o|m@1|a|n|d|\+0#e000e06&|"| +0#e000002&|o|r| |\+0#e000e06&|"|-+0#e000002&@1|c|m|d| |c|o|m@1|a|n|d|\+0#e000e06&|"| +0#e000002&|a|r|g|u|m|e|n|t
|s|"|)+0#0000000&|,| @70
|#+0#e000e06&|d|e|f|i|n|e| |M|E|_|E|X|T|R|A|_|C|M|D| @11|4+0#e000002&| +0#0000000&@41
-@4|N|_|(|"+0#e000002&|I|n|v|a|l|i|d| |a|r|g|u|m|e|n|t| |f|o|r|"|)+0#0000000&|,| @43
+@4>N|_|(|"+0#e000002&|I|n|v|a|l|i|d| |a|r|g|u|m|e|n|t| |f|o|r|"|)+0#0000000&|,| @43
|#+0#e000e06&|d|e|f|i|n|e| |M|E|_|I|N|V|A|L|I|D|_|A|R|G| @9|5+0#e000002&| +0#0000000&@41
->}|;| @72
+|}|;| @72
@75
|#+0#e000e06&|i|f|n|d|e|f| |P|R|O|T|O| @10|/+0#0000e05&@1| |d|o|n|'|t| |w|a|n|t| |a| |p|r|o|t|o|t|y|p|e| |f|o|r| |m|a|i|n|(|)| +0#0000000&@14
@75
@@ -15,6 +17,4 @@
|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
@75
|#+0#e000e06&|i|f|n|d|e|f| |N|O|_|V|I|M|_|M|A|I|N| @4|/+0#0000e05&@1| |s|k|i|p| |t|h|i|s| |f|o|r| |u|n|i|t@1|e|s|t|s| +0#0000000&@24
-@75
-|s+0#00e0003&|t|a|t|i|c| +0#0000000&|c|h|a|r|_|u| |*|s|t|a|r|t|_|d|i|r| |=| |N+0#e000002&|U|L@1|;+0#0000000&| @7|/+0#0000e05&@1| |c|u|r@1|e|n|t| |w|o|r|k|i|n|g| |d|i|r| |o|n| |s|t|a|r|t|u|p| +0#0000000&@1
-@57|7|3|,|1| @9|6|4|%|
+@57|7|1|,|5| @9|6|2|%|