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Fix DisplayLines not tracking their buffer range correctly

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After extracting the whole buffer content, a line can end up with
only non-range highlgihters pending which makes its range become
0.0,0.0, after running highlighting on the extracted range it gets
re-inserted but taking the min of existing range and inserted range
wrongly returns 0.0. Avoid this by detecting that the 0.0,0.0 range
does not actually mean anything when we have no ranged atoms.

Fixes #5001
This commit is contained in:
Maxime Coste 2024-03-22 21:00:38 +11:00
parent 7e75c9a1df
commit a1e6799aa9
5 changed files with 12 additions and 2 deletions
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5
src/display_buffer.hh
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@ -138,11 +138,12 @@ public:
iterator insert(iterator pos, It beg, It end)
{
auto has_buffer_range = std::mem_fn(&DisplayAtom::has_buffer_range);
auto had_range = any_of(*this, has_buffer_range);
if (auto first = std::find_if(beg, end, has_buffer_range); first != end)
{
auto& last = *std::find_if(std::reverse_iterator(end), std::reverse_iterator(first), has_buffer_range);
m_range.begin = std::min(m_range.begin, (*first).begin());
m_range.end = std::max(m_range.end, last.end());
m_range.begin = had_range ? std::min(m_range.begin, (*first).begin()) : (*first).begin();
m_range.end = had_range ? std::max(m_range.end, last.end()) : last.end();
}
return m_atoms.insert(pos, beg, end);
}

0
test/regression/5001-line-highlighting-breaks-at-region/cmd Normal file
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2
test/regression/5001-line-highlighting-breaks-at-region/in Normal file
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@ -0,0 +1,2 @@
#foo
bar

5
test/regression/5001-line-highlighting-breaks-at-region/rc Normal file
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@ -0,0 +1,5 @@
add-highlighter window/test regions
add-highlighter window/test/macro region %{#} %{(?=\\n)} group
add-highlighter window/test/code default-region group
add-highlighter window/ number-lines
add-highlighter window/ line 2 ,red

2
test/regression/5001-line-highlighting-breaks-at-region/script Normal file
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@ -0,0 +1,2 @@
ui_out -ignore 1
ui_out '{ "jsonrpc": "2.0", "method": "draw", "params": [[[{ "face": { "fg": "default", "bg": "default", "underline": "default", "attributes": [] }, "contents": " 1│" }, { "face": { "fg": "black", "bg": "white", "underline": "default", "attributes": [] }, "contents": "#" }, { "face": { "fg": "default", "bg": "default", "underline": "default", "attributes": [] }, "contents": "foo\u000a" }], [{ "face": { "fg": "default", "bg": "default", "underline": "default", "attributes": [] }, "contents": " 2│" }, { "face": { "fg": "default", "bg": "red", "underline": "default", "attributes": [] }, "contents": "bar\u000a" }, { "face": { "fg": "default", "bg": "red", "underline": "default", "attributes": [] }, "contents": " " }]], { "fg": "default", "bg": "default", "underline": "default", "attributes": [] }, { "fg": "blue", "bg": "default", "underline": "default", "attributes": [] }] }'