Enum dcsv::Value

pub enum Value {
    Number(isize),
    Text(String),
}

Basic component of virtual data

Value can be either number or text.

• “Number” is a signed interger (isize)
• Text is simply any data

Dcsv doesn’t support float type because float can change the “original” source while overriding. Since dcsv’s goal is about safe manipulation of csv value, float is not appropriate.

Variants

Number(isize)

Text(String)

Implementations

impl Value

pub fn get_type(&self) -> ValueType

Get a type of value

This returns a new variable “ValueType”

pub fn from_str(src: &str, value_type: ValueType) -> DcsvResult<Self>

Convert string into value with given type

This can fail when a given source cannot bed converted to isize

pub fn empty(value_type: ValueType) -> Self

Create empty value

Default values for each types are

• Number : 0
• Text : “”

pub fn get_width(&self) -> usize

Return unicode_width of the value

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl Default for Value

fn default() -> Self

Returns the “default value” for a type.

impl Display for Value

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

Formats the value using the given formatter.

impl PartialEq for Value

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for Value

fn partial_cmp(&self, other: &Value) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Value

impl StructuralEq for Value

impl StructuralPartialEq for Value