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- Fix segfault on empty output (bug was in XS code)
- Still better end-of-URL detection
- Recognize a few common multicharacter sections in man references
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- Grotty escape sequences are now better interpreted. I feel rather
stupid for not realizing the idea behind how those codes are supposed
to work earlier. It finally hit me when I read the BSD ul(1) source
code.
- URL end detection is slightly better (much better than the old C code)
- Man page references with : are recognized now (common in Perl modules).
- More efficient HTML escaping, no need to escape > and ".
There's still a bunch of improvements to make, but I have much more
confidence in the current implementation already.
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The previous C code was troublesome.
- Didn't handle long lines
- I couldn't convince myself that it was free of memory safety issues
- Needed improving anyway, there are some formatting bugs. These are
hard to fix in the current code.
I mostly replicated the formatting bugs of the old C implementation in
Rust, and possibly added a few new bugs as well. It's not a significant
improvement right now, more testing and fixing will be needed.
The performance of both implementations is comparable, with the Rust
version being slightly faster in many cases (and slower in some others).
I did spend more time trying to optimize this Rust version than I did
with the old C code. I initially tried a naive-ish conversion of the C
code to Rust, but that turned out to be much slower and I had to resort
to using regexes and different data structures fix that.
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