Struct Pattern

pub struct Pattern {
    source: String,
    matcher: Option<Regex>,
}

A pattern facet: what the XSD wrote, and the matcher it translates to.

Constructing one never fails. A pattern this build cannot express is held unchecked and reported by Schema::unchecked_patterns, because refusing to load a schema over one exotic pattern would stop a gateway that otherwise converts every message in the catalog.

Fields

source: String

matcher: Option<Regex>

Implementations

impl Pattern

pub fn new(source: impl Into<String>) -> Self

Compiles source as an XSD pattern. An untranslatable pattern is kept and reported by Schema::unchecked_patterns rather than failing the load.

pub fn source(&self) -> &str

The pattern as the XSD wrote it.

pub fn is_checked(&self) -> bool

Whether this pattern can say no to anything.

pub fn accepts(&self, value: &str) -> bool

Whether value satisfies the pattern. An unchecked pattern accepts everything: it has no opinion to offer, and guessing one would invent violations rather than find them.

Trait Implementations

impl Clone for Pattern

fn clone(&self) -> Pattern

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Pattern

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

Formats the value using the given formatter.