interface Pattern

pub interface Pattern

What a text is searched for: a view or a string, a character, a test of characters.

One signature per operation takes any of them: contains(p), split(p), stripPrefix(p) … Two primitives work over byte indices of text: matchAt returns the end of a match that begins at at, matchBefore the start of a match that ends at end, null where there is none. at and end are a character's first byte or the text's length. A third, nextIn, finds where the next match begins; its default walks the first bytes with matchAt, and a pattern that can find faster (a view, a string) overrides it.

Methods

fn matchAt(text: StringView, at: int): ?int

fn matchBefore(text: StringView, end: int): ?int

fn nextIn(text: StringView, from: int): ?int