Enum Value 

pub enum Value {
    Number(f64),
    Text(String),
    Bool(bool),
    Error(ErrorKind),
    Empty,
}

What a cell holds or a formula computes.

Variants

Number(f64)

Text(String)

Bool(bool)

Error(ErrorKind)

Empty

A cell with nothing in it. An operand that is empty reads as 0, as "" or as FALSE, whichever the operator wants; a formula whose result is empty settles to 0 (Value::settled).

Implementations

impl Value

pub fn number(&self) -> Result<f64, ErrorKind>

The number an arithmetic operator reads: a number itself; a truth value 1 or 0; an empty cell 0; a text its number when it spells one ("5", " 1e3 ", "50%") and #VALUE! otherwise; an error the error. Excel’s rule for +, -, *, /, ^ and a function’s numeric argument given directly (a value read out of a range follows the range rule instead, which each function states).

pub fn text(&self) -> Result<String, ErrorKind>

The text & reads: a text itself; a number in Excel’s General spelling (number_to_text); a truth value TRUE or FALSE; an empty cell ""; an error the error.

pub fn truth(&self) -> Result<bool, ErrorKind>

The truth value IF, AND, OR and NOT read: a truth value itself; a number true unless 0; an empty cell false; a text only when it spells TRUE or FALSE, #VALUE! otherwise; an error the error.

pub fn settled(self) -> Value

A formula’s result as its cell holds it: an empty result is 0, as =A1 over an empty A1 shows 0 and is a number to ISNUMBER.

pub fn spell(&self) -> String

The value as a datum, spelled as a cell row spells one (crate::rows::datum): a number in its shortest spelling, a text quoted, true or false, (error "#DIV/0!"); a number no cell can hold is #NUM!, as the writer spells it; an empty value is 0.

pub fn from_file(v: &Value) -> Option<Value>

A cached value as the file holds it, read as a computed kind: the file’s number text parsed, a text, a truth value, one of the seven errors. None for a value this version does not compare: a date cell, a number text that is not a number, an error outside the seven.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate 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<(), Error>

Formats the value using the given formatter.

impl PartialEq for Value

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Value