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Track underscore bottom separately mod 3, like asterisk #272

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merged 1 commit into from
Oct 26, 2023
Merged

Track underscore bottom separately mod 3, like asterisk #272

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7 changes: 4 additions & 3 deletions lib/inlines.js
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Original file line number Diff line number Diff line change
Expand Up @@ -382,7 +382,7 @@ var processEmphasis = function(stack_bottom) {
var openers_bottom_index;
var odd_match = false;

for (var i = 0; i < 8; i++) {
for (var i = 0; i < 14; i++) {
openers_bottom[i] = stack_bottom;
}
// find first closer above stack_bottom:
Expand All @@ -407,10 +407,11 @@ var processEmphasis = function(stack_bottom) {
openers_bottom_index = 1;
break;
case C_UNDERSCORE:
openers_bottom_index = 2;
openers_bottom_index = 2 + (closer.can_open ? 3 : 0)
+ (closer.origdelims % 3);
break;
case C_ASTERISK:
openers_bottom_index = 3 + (closer.can_open ? 3 : 0)
openers_bottom_index = 8 + (closer.can_open ? 3 : 0)
+ (closer.origdelims % 3);
break;
}
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29 changes: 29 additions & 0 deletions test/regression.txt
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Expand Up @@ -426,3 +426,32 @@ Link reference definitions are blocks when checking list tightness.
</li>
</ul>
````````````````````````````````

An underscore that is not part of a delimiter should not prevent another
pair of underscores from forming part of their own.
```````````````````````````````` example
__!_!__

__!x!__

**!*!**

---

_*__*_*

_*xx*_*

_*__-_-

_*xx-_-
.
<p><strong>!_!</strong></p>
<p><strong>!x!</strong></p>
<p><strong>!*!</strong></p>
<hr />
<p><em><em>__</em></em>*</p>
<p><em><em>xx</em></em>*</p>
<p><em>*__-</em>-</p>
<p><em>*xx-</em>-</p>
````````````````````````````````
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