Enum ColorScheme

#[non_exhaustive]
pub enum ColorScheme {
    NoColors,
    Default,
    RegularAndBold,
    Red,
    Green,
    Blue,
    White,
}

Enum ColorScheme in use to represent the diagnostic message.

The default one might be a good choice, but for visually impaired people, alternatives must be provided. Furthermore personal preferences shall be addressed.

For the library, it shall be pointed out that ColorScheme::NONE might be handled by different program logic. This is because we use method uses_colors to determine whether colored output is actually used. And we invoke different methods depending on the answer.

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.

NoColors

Default

RegularAndBold

Red

Green

Blue

White

Implementations

impl ColorScheme

pub fn by_name(scheme: &str) -> Option<Self>

Take a name and return the corresponding ColorScheme instance (or None, if unknown)

pub fn color_choice(&self) -> ColorChoice

Return the ColorChoice for the configured color scheme

pub fn all_as_slice() -> &'static [ColorScheme]

Returns the entire list of supported color schemes as a slice

pub fn op_section(&self, op_name: &str) -> Result<()>

represents an operation like ----- hello-world ---------

pub fn note_label(&self, label: &str) -> Result<()>

represents a note label like NOTE: in NOTE: recognize this Unicode codepoint

pub fn error_label(&self, label: &str) -> Result<()>

represents a error label like ERROR: in ERROR: argument invalid

pub fn keyword(&self, word: &str) -> Result<()>

represents a keyword like a column header or type name

pub fn outer_wrapper(&self, wrapper: &str) -> Result<()>

pub fn outer_separator(&self, sep: &str) -> Result<()>

pub fn inner_wrapper(&self, wrapper: &str) -> Result<()>

pub fn inner_separator(&self, sep: &str) -> Result<()>

Trait Implementations

impl Clone for ColorScheme

fn clone(&self) -> ColorScheme

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColorScheme

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

Formats the value using the given formatter.

impl Default for ColorScheme

fn default() -> ColorScheme

Returns the “default value” for a type.

impl Display for ColorScheme

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

Formats the value using the given formatter.

impl Hash for ColorScheme

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 PartialEq for ColorScheme

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ColorScheme

impl Eq for ColorScheme

impl StructuralPartialEq for ColorScheme