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package str
type Type int
const (
TypeMatch = iota
TypeReplace
)
// DiffSection represents a single chunk of a diff.
type DiffSection struct {
Type Type
Actual, Expected []rune
}
// Diff represents a full diff of two values.
type Diff interface {
// Cost is the calculated cost of changing from one value to another.
// Basically, if provided with multiple diffs, the Differ will always prefer
// the lowest cost.
//
// Generally, a cost of 0 should represent exactly equal values, so negative
// numbers shouldn't usually be used. However, if they are used, they will
// work the same as positive values, being preferred over any value higher
// than them.
Cost() float64
// Sections returns all of the sections of the diff. This will be used to
// generate output, depending on the diff formats being used.
Sections() []DiffSection
}
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