Struct TextBuffer 

pub struct TextBuffer { /* private fields */ }

A mutable text buffer backed by a String.

Implementations

impl TextBuffer

pub fn new() -> Self

pub fn with_capacity(cap: usize) -> Self

pub fn append(&mut self, s: &str)

Append a string slice.

pub fn append_line(&mut self, s: &str)

Append a line (adds newline at end).

pub fn char_count(&self) -> usize

Total character count.

pub fn byte_len(&self) -> usize

Total byte count.

pub fn is_empty(&self) -> bool

pub fn as_str(&self) -> &str

Returns the buffer as a string slice.

pub fn line_count(&self) -> usize

Returns the number of lines.

pub fn line(&self, n: usize) -> Option<&str>

Returns the nth line (0-indexed).

pub fn lines_vec(&self) -> Vec<&str>

Returns all lines as a vector.

pub fn find(&self, needle: &str) -> Option<usize>

Search for a substring; returns the byte offset of the first match.

pub fn count_occurrences(&self, needle: &str) -> usize

Count occurrences of a substring.

pub fn replace_all(&mut self, from: &str, to: &str)

Replace all occurrences of from with to.

pub fn clear(&mut self)

Clear the buffer.

pub fn truncate(&mut self, n: usize)

Truncate to the first n bytes (must be on a char boundary).

pub fn append_count(&self) -> u64

Trait Implementations

impl Default for TextBuffer

fn default() -> Self

Returns the “default value” for a type.