Enum Clause 

#[non_exhaustive]
pub enum Clause {
    FontNotEmbedded,
    FontSubsetIncomplete,
    FontEncodingInvalid,
    Encrypted,
    JavaScript,
    ForbiddenAction,
    EmbeddedMultimedia,
    XmpMissing,
    XmpMalformed,
    XmpIdentificationMissing,
    XmpIdentificationMismatch,
    XmpInfoMismatch,
    OutputIntentMissing,
    OutputIntentProfileMissing,
    AnnotationFlagsIllegal,
    AnnotationSubtypeForbidden,
    AnnotationAppearanceMissing,
    ExternalContentReference,
    Transparency,
    DeviceColorWithoutOutputIntent,
    OptionalContent,
    EmbeddedFile,
    LzwFilter,
    JpxFilter,
}

The requirement a Violation breaks.

One variant per rule this checker enforces, named for what the rule is rather than for the section number, because the section numbers differ between ISO 19005-1 and -2 for the same requirement and a caller matching on Clause::FontNotEmbedded should not have to care which part it is reading. Clause::iso gives the citation for a report that wants to print one.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

FontNotEmbedded

A font used for rendering has no embedded font program.

FontSubsetIncomplete

An embedded font program is a subset (its name carries the six-letter tag) but does not declare the character set it covers.

FontEncodingInvalid

A symbolic TrueType font has no usable cmap, or a non-symbolic one lacks the encoding PDF/A requires.

Encrypted

The file is encrypted. PDF/A forbids it outright: an archived file must be readable without a key that may be lost.

JavaScript

The document carries JavaScript, in the name tree or in an action.

ForbiddenAction

A forbidden action type: /Launch, /Sound, /Movie, /ResetForm, /ImportData or /JavaScript.

EmbeddedMultimedia

An embedded sound or movie annotation, or a /Sound or /Movie entry referencing multimedia content.

XmpMissing

The catalog carries no /Metadata XMP packet.

XmpMalformed

The XMP packet is present but is not well-formed enough to read the identification schema from.

XmpIdentificationMissing

The XMP packet carries no PDF/A identification schema (pdfaid:part).

XmpIdentificationMismatch

The XMP identification schema names a different part or conformance letter than the level being checked.

XmpInfoMismatch

A document information dictionary entry disagrees with the XMP property that mirrors it.

OutputIntentMissing

The catalog has no /OutputIntents, or none with a GTS_PDFA1 subtype.

OutputIntentProfileMissing

An output intent is present but its /DestOutputProfile is missing or is not an embeddable ICC stream.

AnnotationFlagsIllegal

An annotation’s flag word is illegal: /Hidden, /NoView or /Invisible set, or /Print clear.

AnnotationSubtypeForbidden

An annotation of a subtype PDF/A does not allow.

AnnotationAppearanceMissing

A non-widget annotation has no normal appearance stream.

ExternalContentReference

A stream, file specification or reference XObject points at content outside the file.

Transparency

Transparency: a soft mask, a non-Normal blend mode, a non-opaque constant alpha, or a transparency group. A-1 only.

DeviceColorWithoutOutputIntent

A device colour space is used with no output intent to define what it means.

OptionalContent

Optional content (/OCProperties, /OCG, /OCMD). A-1 only; A-2 permits it.

EmbeddedFile

An embedded file. A-1 forbids embedded files outright.

LzwFilter

A /LZWDecode filter, which both parts forbid for patent reasons.

Separate from Clause::JpxFilter because they are separate requirements with separate citations — folding them into one clause made a JPEG 2000 stream cite the LZW rule, which the veraPDF oracle caught.

JpxFilter

A /JPXDecode filter under A-1, whose PDF 1.4 base does not define JPEG 2000. A-2 permits it, so this never fires there.

Implementations

impl Clause

pub const fn iso(self, level: Level) -> &'static str

The ISO 19005 citation for this requirement, at the given level.

The two parts number the same requirement differently, so the level is a parameter rather than the clause carrying one number.

Trait Implementations

impl Clone for Clause

fn clone(&self) -> Clause

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Clause

impl Debug for Clause

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

Formats the value using the given formatter.

impl Eq for Clause

impl Hash for Clause

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Clause

fn cmp(&self, other: &Clause) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for Clause

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Clause

fn partial_cmp(&self, other: &Clause) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Clause