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Add Arcanist support for highlighting indent change intraline diffs

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Summary:
Ref T13161. See D20181. This allows the intraline highlighter to accept new ">" and "<" spans and apply a different style for them.

The input pattern is `list<segment>`. Each segment is `pair<wild kind, int byte_length>`, i.e. wrap the next `byte_length` bytes in a span of kind `kind`.

Before this change, the possible kinds of segements are `0` (no intraline diff, do not highlight) or `1` (intraline diff, highlight in bright color).

D20181 adds `<` (depth decreased) and `>` (depth increased). These are like `1`, but add a different class so the UI can handle them differently.

Test Plan: See D20181.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13161

Differential Revision: https://secure.phabricator.com/D20182
This commit is contained in:
epriestley 2019-02-15 09:53:23 -08:00
parent 07a208d8fc
commit 9581dd0f52
1 changed files with 18 additions and 3 deletions
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21
src/difference/ArcanistDiffUtils.php
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@ -89,6 +89,9 @@ final class ArcanistDiffUtils extends Phobject {
$highlight_o = '<span class="bright">';
$highlight_c = '</span>';
$depth_in = '<span class="depth-in">';
$depth_out = '<span class="depth-out">';
$is_html = false;
if ($str instanceof PhutilSafeHTML) {
$is_html = true;
@ -107,11 +110,23 @@ final class ArcanistDiffUtils extends Phobject {
$stack = array_shift($intra_stack);
$s = $e;
$e += $stack[1];
} while ($stack[0] == 0);
} while ($stack[0] === 0);
switch ($stack[0]) {
case '>':
$open_tag = $depth_in;
break;
case '<':
$open_tag = $depth_out;
break;
default:
$open_tag = $highlight_o;
break;
}
}
if (!$highlight && !$tag && !$ent && $p == $s) {
$buf .= $highlight_o;
$buf .= $open_tag;
$highlight = true;
}
@ -139,7 +154,7 @@ final class ArcanistDiffUtils extends Phobject {
if ($tag && $str[$i] == '>') {
$tag = false;
if ($highlight) {
$buf .= $highlight_o;
$buf .= $open_tag;
}
}