Enum ParseError 

pub enum ParseError {
    InvalidXml(String),
    WrongRootNamespace {
        found: Option<String>,
        position: Position,
    },
    NoPatterns,
    MissingAttribute {
        element: &'static str,
        attribute: &'static str,
        position: Position,
    },
    UnknownAbstractPattern {
        pattern: String,
        position: Position,
    },
    UnknownRuleReference {
        rule: String,
        position: Position,
    },
    CyclicRuleExtends {
        rule: String,
        position: Position,
    },
    UnexpectedElement {
        element: String,
        position: Position,
    },
    DuplicateId {
        element: &'static str,
        id: String,
        position: Position,
    },
    UnknownActivePattern {
        pattern: String,
        position: Position,
    },
    UnknownDiagnosticReference {
        id: String,
        position: Position,
    },
    UnsupportedQueryBinding {
        binding: String,
        position: Position,
    },
    CyclicInclude {
        href: String,
        position: Position,
    },
    UnresolvableInclude {
        href: String,
        message: String,
        position: Position,
    },
    InvalidInclude {
        href: String,
        reason: &'static str,
        position: Position,
    },
}

An error encountered while parsing a Schematron schema.

Variants

InvalidXml(String)

The input is not well-formed XML.

WrongRootNamespace

The root element is not <schema> in the Schematron namespace.

Fields

found: Option<String>

position: Position

NoPatterns

The schema contains no <pattern> elements.

MissingAttribute

A required attribute is missing on an element.

Fields

element: &'static str

attribute: &'static str

position: Position

UnknownAbstractPattern

<pattern is-a="..."> referenced a pattern id with no matching <pattern abstract="true" id="..."> in the schema.

Fields

pattern: String

position: Position

UnknownRuleReference

<extends rule="..."> referenced a rule id with no matching <rule id="..."> in the same pattern (see plan/07-abstract-patterns-and-extends.md for why the lookup is pattern-local, not schema-wide).

Fields

rule: String

position: Position

CyclicRuleExtends

<extends> formed a cycle (a rule extending itself, directly or transitively).

Fields

rule: String

position: Position

UnexpectedElement

A Schematron-namespace element appeared as a direct child of a container it is not part of that container’s grammar — either a typo of a known element (e.g. <asert>), or a real ISO Schematron construct this crate does not implement (e.g. <include>). See README.md’s support matrix. Foreign-namespace elements are never affected — ISO’s own “foreign” content model already allows those anywhere, regardless of this crate’s support.

Fields

element: String

position: Position

DuplicateId

Two elements in the same ID space (pattern/@id or diagnostic/@id) declared the same id — ambiguous for anything that references it by IDREF(S) (active/@pattern, assert|report/@diagnostics).

Fields

element: &'static str

id: String

position: Position

UnknownActivePattern

<active pattern="..."> referenced a pattern id with no matching concrete <pattern id="..."> in the schema (abstract-pattern ids don’t count — they never appear in Schema.patterns; compare UnknownAbstractPattern, which is is-a’s own, separate reference kind).

Fields

pattern: String

position: Position

UnknownDiagnosticReference

assert|report/@diagnostics referenced a diagnostic id with no matching <diagnostic id="..."> in the schema.

Fields

id: String

position: Position

UnsupportedQueryBinding

schema/@queryBinding named a query language binding this crate does not treat as equivalent to XPath 1.0 (issue #6) — evaluating test/context/select expressions as XPath 1.0 anyway would silently misinterpret a schema that explicitly opted into a different query language (e.g. "xslt2", XPath 2.0). See README.md’s support matrix for the accepted binding names.

Fields

binding: String

position: Position

CyclicInclude

crate::parse_with_resolver found an <include href="..."> it had already started resolving further up the same inclusion chain (issue #2) — A includes B includes A, directly or transitively.

Fields

href: String

position: Position

UnresolvableInclude

crate::parse_with_resolver’s SchemaResolver failed to resolve an <include href="..."> (issue #2) — not found, not readable, or disallowed by the resolver’s own policy; message is the resolver’s crate::ResolveError, rendered.

Fields

href: String

message: String

position: Position

InvalidInclude

An <include href="..."> (issue #2) resolved to content this crate refuses to splice in: either the resolved root element isn’t in the Schematron namespace at all, or it’s a whole <schema> (the ISO reference implementation, iso_dsdl_include.xsl, treats this the same way: “use include to include fragments, not a whole schema”).

Fields

href: String

reason: &'static str

position: Position

Trait Implementations

impl Clone for ParseError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl Eq for ParseError

impl Error for ParseError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for ParseError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParseError