Enum StructType 

pub enum StructType {
    Document,
    Part,
    Art,
    Sect,
    Div,
    P,
    H,
    H1,
    H2,
    H3,
    H4,
    H5,
    H6,
    L,
    LI,
    Lbl,
    LBody,
    Table,
    TR,
    TH,
    TD,
    THead,
    TBody,
    TFoot,
    Span,
    Quote,
    Note,
    Reference,
    BibEntry,
    Code,
    Link,
    Annot,
    WB,
    Figure,
    Formula,
    Form,
    Custom(String),
}

Standard structure types from PDF spec Section 14.8.4.

These are the standard structure types defined by the PDF specification. Custom types can be mapped to standard types via the RoleMap.

Variants

Document

Document root

Part

Part (major division)

Art

Article

Sect

Section

Div

Division

P

Paragraph

H

Heading level 1-6

H1

Heading level 1

H2

Heading level 2

H3

Heading level 3

H4

Heading level 4

H5

Heading level 5

H6

Heading level 6

L

List

LI

List item

Lbl

Label (list item marker)

LBody

List body (list item content)

Table

Table

TR

Table row

TH

Table header cell

TD

Table data cell

THead

Table header group

TBody

Table body group

TFoot

Table footer group

Span

Span (inline generic)

Quote

Quote

Note

Note

Reference

Reference

BibEntry

Bibliographic entry

Code

Code

Link

Link

Annot

Annotation

WB

Word break - explicit word boundary in structure tree (PDF 1.5+)

Per PDF spec Section 14.8.4.4, WB elements mark word boundaries in languages that do not use spaces between words (e.g., CJK).

Figure

Figure

Formula

Formula

Form

Form (input field)

Custom(String)

Custom structure type not defined in the PDF specification

Implementations

impl StructType

pub fn from_str(s: &str) -> Self

Parse structure type from string (e.g., “/P” -> StructType::P)

pub fn is_heading(&self) -> bool

Check if this is a heading type (H, H1-H6)

pub fn is_block(&self) -> bool

Check if this is a block-level element

pub fn heading_level(&self) -> Option<u8>

Get heading level (1-6) if this is a heading type

pub fn is_list(&self) -> bool

Check if this is a list type (L, LI, Lbl, LBody)

pub fn is_word_break(&self) -> bool

Check if this is a word break element (WB)

Word break elements mark explicit word boundaries in languages that don’t use spaces (e.g., CJK). When encountered during text extraction, a space should be inserted.

pub fn markdown_prefix(&self) -> Option<&'static str>

Get markdown prefix for this structure type

Trait Implementations

impl Clone for StructType

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 StructType

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

Formats the value using the given formatter.

impl Eq for StructType

impl PartialEq for StructType

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for StructType