Struct TextRange

pub struct TextRange { /* private fields */ }

Defines a range in a text.

A range is defined by two InsertPositions, start and end. All the text between the two positions is included in the range.

Implementations

impl TextRange

pub fn new(start: InsertPosition, end: InsertPosition) -> Self

Create a new text range containing everything between start and end.

They may point to the same location (in which case the range is empty), but end may not be before start.

pub fn new_empty(pos: InsertPosition) -> Self

Create a new empty range at pos.

pub fn inc_col(&mut self)

Append a non-newline character to the range.

pub fn inc_line(&mut self)

Append a newline character to the range.

pub fn inc(&mut self, c: char)

Append one character to the range. If the character c is a newline, it behaves like [inc_line()], otherwhise it behaves like [inc_col()].

pub fn merge(&mut self, other: TextRange)

Merge other into self.

self.end() must line up (ie. be equal to) other.start(). This means there may be no characters between the two ranges.

pub fn begin_next_range(&self) -> Self

Create a new empty range starting at the end of self

pub fn start(&self) -> &InsertPosition

Get the start insert position

pub fn end(&self) -> &InsertPosition

Get the end insert position

Trait Implementations

impl Clone for TextRange

fn clone(&self) -> TextRange

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TextRange

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

Formats the value using the given formatter.

impl Default for TextRange

fn default() -> TextRange

Returns the “default value” for a type.

impl Display for TextRange

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

Formats the value using the given formatter.

impl FromStr for TextRange

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for TextRange

fn eq(&self, other: &TextRange) -> 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 Eq for TextRange

impl StructuralPartialEq for TextRange