miyuchina / mistletoe

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Build # 25904813833

Build Type

push

github

Committed by pbodnar

Commit Message

fix: avoid crash on overlapping delimiters

The fuzzing discovered crash with IndexError: string index out of range

The `type` stores all parsed delimiters and this is supposed to remove
one removed delimiter, but it did remove all but one delimiter so it
only worker for one nesting level. For example, removing 1 marker from
the right side of `****` should leave `***`, but the old code left *
while `number`, `start`, and `end` said 3 markers remained. Later
parsing could then reduce that inconsistent `type` to "", and
`closer.type[0]` crashed with `IndexError`.

Fixes #261

Coverage Stats

1 of 1 new or added line in 1 file covered. (100.0%)

2428 of 2576 relevant lines covered (94.25%)

0.94 hits per line