Enum Content 

pub enum Content {
    Prose,
    Code,
    Diff,
    Log,
    Structured,
    Table,
    Markup,
    Unknown,
}

What a piece of text is, as far as shortening is concerned. Eight, and Unknown is one of them: a compactor that had to guess would guess wrong on exactly the material nobody anticipated.

Variants

Prose

Sentences. The beginning says what it is about.

Code

Source. Both ends matter and the middle repeats.

Diff

A patch. The hunk headers are the information.

Log

Lines with a shape, most of them the same. The end is the news.

Structured

Structured data. Shortening it makes it unparseable, so it goes out of the window whole instead.

Table

Rows and columns. The header row is load-bearing.

Markup

A document with a section structure: LaTeX, or Markdown with headings. Its bones are the headings, so it is cut at section boundaries and the headings survive the cut.

Unknown

Anything else, including binary-looking material.

Trait Implementations

impl Clone for Content

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Content

impl Debug for Content

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Content

impl PartialEq for Content

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Content