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runtime(syntax-tests): Allow for folded and wrapped lines in syntax test files

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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>
This commit is contained in:
Aliaksei Budavei
2024-05-21 01:10:26 +03:00
committed by Christian Brabandt
parent f397549332
commit 8418446644
146 changed files with 1505 additions and 904 deletions
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12
runtime/syntax/testdir/dumps/modula2_r10_07.dump
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@@ -1,9 +1,11 @@
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| +0#4040ff13&@1|b|a|z|(|b|a|m|,| |b|o@1|)| +0#0000000&@59
|E+0#4040ff13&|N|D| |(|*| |W|H|I|L|E| |*|)|;| +0#0000000&@58
>E+0#4040ff13&|N|D| |(|*| |W|H|I|L|E| |*|)|;| +0#0000000&@58
|>+0#4040ff13&|?| +0#0000000&@72
> @74
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|(+0#0000e05&|*| |i|l@1|e|g|a|l| |c|h|a|r|a|c|t|e|r|s| |*|)| +0#0000000&@50
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@@ -15,6 +17,4 @@
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@75
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@57|1|2|7|,|0|-|1| @6|9|5|%|
@57|1|2|5|,|1| @8|9|3|%|