Struct Options 

pub struct Options {
    pub indent: String,
    pub trailing_commas: bool,
    pub quote_style: QuoteStyle,
    pub binary_encoding: BinaryEncoding,
    pub unquoted_keys: bool,
    pub leading_plus: bool,
    pub sort_keys: bool,
    pub escape_unicode: bool,
    pub use_zulu: bool,
    pub timestamp_precision: TimestampPrecision,
}

Formatting options for JASN output.

Fields

indent: String

Indentation string (e.g., “ “ or “\t”). Empty string means compact output.

trailing_commas: bool

Add trailing commas to lists and maps.

quote_style: QuoteStyle

Quote style for strings.

binary_encoding: BinaryEncoding

Binary data encoding preference.

unquoted_keys: bool

Use unquoted keys in maps when possible.

leading_plus: bool

Add leading plus sign to positive numbers (+42, +3.14, +inf).

sort_keys: bool

Sort map keys alphabetically for consistent output.

escape_unicode: bool

Escape all non-ASCII characters as \uXXXX sequences.

use_zulu: bool

Use ‘Z’ for UTC timestamps instead of ‘+00:00’.

timestamp_precision: TimestampPrecision

Precision for timestamp fractional seconds.

Implementations

impl Options

pub fn compact() -> Self

Creates options for compact output.

pub fn pretty() -> Self

Creates options for pretty-printed output.

pub fn with_indent(self, indent: impl Into<String>) -> Self

Sets the indentation string.

pub fn with_trailing_commas(self, enable: bool) -> Self

Sets whether to use trailing commas.

pub fn with_quote_style(self, style: QuoteStyle) -> Self

Sets the quote style.

pub fn with_binary_encoding(self, encoding: BinaryEncoding) -> Self

Sets the binary encoding preference.

pub fn with_unquoted_keys(self, enable: bool) -> Self

Sets whether to use unquoted keys.

pub fn with_leading_plus(self, enable: bool) -> Self

Sets whether to add leading plus sign to positive numbers.

pub fn with_sort_keys(self, enable: bool) -> Self

Sets whether to sort map keys alphabetically.

pub fn with_escape_unicode(self, enable: bool) -> Self

Sets whether to escape non-ASCII characters as \uXXXX.

pub fn with_use_zulu(self, enable: bool) -> Self

Sets whether to use ‘Z’ for UTC timestamps instead of ‘+00:00’.

pub fn with_timestamp_precision(self, precision: TimestampPrecision) -> Self

Sets the precision for timestamp fractional seconds.

Trait Implementations

impl Clone for Options

fn clone(&self) -> Options

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Options

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

Formats the value using the given formatter.

impl Default for Options

fn default() -> Self

Returns the “default value” for a type.