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ContentMarkedContent

Struct ContentMarkedContent 

Source
pub struct ContentMarkedContent {
    pub operator: MarkedContentOp,
    pub tag: String,
    pub properties: Option<Dict>,
    pub depth: u32,
}
Expand description

One marked-content operator surfaced by parse_content_stream_full_with_properties. ISO 32000-1 §14.6 defines five marked-content operators (Table 320) that fall into two shapes:

  • PointsMP (tag) and DP (tag properties) designate a single marked-content point in the stream.
  • SequencesBMC (tag) and BDC (tag properties) begin a sequence terminated by a balancing EMC.

One ContentMarkedContent is recorded per operator in stream order, so a downstream consumer can reconstruct the marked-content tree (e.g. to find an /OC membership tag for optional content, §8.11.3.2, or an /ActualText / /Alt accessibility entry, §14.9.4). The walker does not interpret the property list — its entries stay verbatim in properties so a downstream consumer can resolve /OC, /MCID, /ActualText, etc. as it sees fit.

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§operator: MarkedContentOp

Which marked-content operator produced this event.

§tag: String

The tag operand — a Name indicating the role or significance of the marked content (e.g. "OC", "Span", "P"), leading / stripped. EMC carries no tag, so its tag is empty.

§properties: Option<Dict>

The resolved property list for DP / BDC (§14.6.2): either the inline << … >> dictionary written directly after the tag, or the dictionary named in /Resources /Properties when the operand was a /Name. None for MP / BMC / EMC (which carry no property list) and for a DP / BDC whose /Name operand wasn’t resolvable against the supplied properties_resources.

§depth: u32

Nesting depth at the moment the operator fired, counting BMC/BDC-opened sequences only (MP/DP points do not nest). BMC/BDC report the depth of the sequence they open (0 for a top-level sequence); the matching EMC reports the same depth; MP/DP report the depth of the sequence that encloses them (0 when not inside any). An unbalanced EMC (no open sequence) reports depth 0 and is tolerated.

Trait Implementations§

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impl Clone for ContentMarkedContent

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fn clone(&self) -> ContentMarkedContent

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for ContentMarkedContent

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

Formats the value using the given formatter. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

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