Struct Header 

pub struct Header {
    pub version: (u32, u32),
    pub mode: ParseMode,
    pub aliases: BTreeMap<String, String>,
    pub structs: BTreeMap<String, Vec<String>>,
    pub struct_counts: BTreeMap<String, usize>,
    pub nests: BTreeMap<String, Vec<String>>,
    pub prompt: Option<Box<str>>,
    pub null_char: char,
    pub quote_char: char,
    pub counts: BTreeMap<String, CountValue>,
}

Parsed header data.

Fields

version: (u32, u32)

HEDL format version as (major, minor).

mode: ParseMode

Parsing mode (strict or lenient). Default: strict.

aliases: BTreeMap<String, String>

Type aliases mapping alias name to original type.

structs: BTreeMap<String, Vec<String>>

Struct definitions mapping struct name to field names.

struct_counts: BTreeMap<String, usize>

Expected row counts for structs (from count hints).

nests: BTreeMap<String, Vec<String>>

Nesting relationships mapping parent type to child types. A parent type can have multiple child types (e.g., Customer > Address, Customer > Order).

prompt: Option<Box<str>>

Prompt text for LLM/tooling hints (optional).

null_char: char

Null character (default: ~).

quote_char: char

Quote character (default: ").

counts: BTreeMap<String, CountValue>

Count statistics from %C directives. Key format: “Type.field” or “Type.total”

Implementations

impl Header

pub fn new(version: (u32, u32)) -> Self

Create a new Header with the given version and empty collections.

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Header

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

Formats the value using the given formatter.