Add diff algorithm option behavior like idciff

[roachsinai]

The git diff of my changes:

Diff result of VSCode:

As show in above two images, vscode show same diff with git.

But icdiff shows a more direct result:

Add result of icdiff is expected, thanks!

[hediet]

Please include the original/modified text. Thanks!

[roachsinai]

Hi @hediet

original text:

@dataclass
class CXXUnit:
    source: str
    entrance: Optional[str]= None
    includes: List[str]= field(default_factory=list)
    libraries: List[str]= field(default_factory=list)
    defines: List[str]= field(default_factory=list)

modified text:

@dataclass
class CXXUnit:
    source: str
    ent: Optional[str]= None
    includes: List[str]= field(factory=list)
    libraries: List[str]= field(default_factory=list)
    libraries: List[str]= field(default_factory=list)

[hediet]

For reference, here the playground.

With a small adjustment of the modified text, you can actually get a better diff.

[roachsinai]

@hediet Yeah, got it.