[fuzz result] double underscore surrounded by asterisks prevents crossing single-underscore emphasis #747
Description
Consider this output:
$ cargo run
Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Running `target/debug/pulldown-cmark`
_*__*_*
_*xx*_*
<p>_<em>__</em>_*</p>
<p><em><em>xx</em></em>*</p>It seems like the lower limit is being set on the __, because it failed to match, but the reason it didn't match is because it's % 3, so it isn't applicable to the single underscore in front.
_*__*_*
Events from pulldown-cmark:
"_*__*_*\n" -> [
Start(Paragraph)
Text(Borrowed("_"))
Start(Emphasis)
Text(Boxed("__"))
End(Emphasis)
Text(Boxed("_*"))
End(Paragraph)
]Events from pandoc:
"_*__*_*\n" -> [
Start(Paragraph)
Start(Emphasis)
Start(Emphasis)
Text(Boxed("__"))
End(Emphasis)
End(Emphasis)
Text(Boxed("*"))
End(Paragraph)
]Events from commonmark.js:
"_*__*_*\n" -> [
Start(Paragraph)
Start(Emphasis)
Start(Emphasis)
Text(Boxed("__"))
End(Emphasis)
End(Emphasis)
Text(Boxed("*"))
End(Paragraph)
]AST from pandoc:
Pandoc {
meta: {},
blocks: [
Para(
[
Emph(
[
Emph(
[
Str(
"__",
),
],
),
],
),
Str(
"*",
),
],
),
],
}
thread '' panicked at fuzz_targets/pandoc.rs:112:9:
assertion failed: (left == right)
Diff < left / right > :
[
Start(
Paragraph,
),
< Text(
< Borrowed(
< "_",
< ),
Start(
Emphasis,
),
Start(
Emphasis,
),
Text(
Boxed(
"__",
),
),
End(
Emphasis,
),
End(
Emphasis,
),
Text(
Boxed(
< "_",
"",
),
),
End(
Paragraph,
),
]
_*__-_-
Events from pulldown-cmark:
"_*__-_-\n" -> [
Start(Paragraph)
Text(Boxed("_*__-_-"))
End(Paragraph)
]Events from pandoc:
"_*__-_-\n" -> [
Start(Paragraph)
Start(Emphasis)
Text(Boxed("*__-"))
End(Emphasis)
Text(Boxed("-"))
End(Paragraph)
]Events from commonmark.js:
"_*__-_-\n" -> [
Start(Paragraph)
Text(Boxed("_*__-_-"))
End(Paragraph)
]AST from pandoc:
Pandoc {
meta: {},
blocks: [
Para(
[
Emph(
[
Str(
"*__-",
),
],
),
Str(
"-",
),
],
),
],
}
thread '' panicked at fuzz_targets/pandoc.rs:112:9:
assertion failed: (left == right)
Diff < left / right > :
[
Start(
Paragraph,
),
Start(
Emphasis,
),
Text(
Boxed(
< "*__--",
"*__-",
),
),
End(
Emphasis,
),
Text(
Boxed(
"-",
),
),
End(
Paragraph,
),
]