Struct StringBuilder

pub struct StringBuilder { /* private fields */ }

Implementations

impl StringBuilder

pub fn new() -> StringBuilder

Return a new StringBuilder with default initial capacity.

pub fn with_capacity(size: usize) -> StringBuilder

Return a new StringBuilder with an initial capacity.

pub fn append<T: Vcharsable>(&mut self, buff: T) -> &mut StringBuilder

Add a type that can be viewed as a slice of bytes.

Example

use rstring_builder::StringBuilder;
let mut builder = StringBuilder::new();
builder.append("some string");

pub fn len(&self) -> usize

Return the current length in chars of the underlying buffer.

Example

use rstring_builder::StringBuilder;

let mut builder = StringBuilder::new();
builder.append("four");
assert_eq!(builder.len(), 4);
builder.append("華文");
assert_eq!(builder.len(), 6);

pub fn delete_at(&mut self, start: usize) -> &mut StringBuilder

Delete chars of index

Example

use rstring_builder::StringBuilder;

let mut builder = StringBuilder::new();
builder.append("abc");
assert_eq!("bc".to_string(), builder.delete_at(0).string());
assert_eq!("b".to_string(), builder.delete_at(1).string());

pub fn delete(&mut self, start: usize, end: usize) -> &mut StringBuilder

Delete chars range

Example

use rstring_builder::StringBuilder;

let mut builder = StringBuilder::new();
builder.append("abc\ndef");
assert_eq!("adef".to_string(), builder.delete(1, 4).string());
assert_eq!("".to_string(), builder.delete(0, builder.len()).string());

pub fn clear(&mut self) -> &mut StringBuilder

Clear string builder.

Example

use rstring_builder::StringBuilder;

let mut builder = StringBuilder::new();
builder.append("abc\ndef");
assert_eq!("".to_string(), builder.clear().string());

pub fn string(&self) -> String

Return String

Example

use rstring_builder::StringBuilder;

let mut builder = StringBuilder::new();
builder.append("abc\ndef");
assert_eq!("abc\ndef".to_string(), builder.string());

pub fn is_empty(&self) -> bool

text builder is empty

Example

use rstring_builder::StringBuilder;

let mut builder = StringBuilder::new();
assert_eq!(true, builder.is_empty());
builder.append("abc\ndef");
assert_eq!(false, builder.is_empty());

Trait Implementations

impl Debug for StringBuilder

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

Formats the value using the given formatter.

impl PartialEq for StringBuilder

fn eq(&self, other: &StringBuilder) -> 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 ToString for StringBuilder

fn to_string(&self) -> String

Converts the given value to a String.

impl Vcharsable for StringBuilder

fn vechars(&self) -> Vec<char>

impl StructuralPartialEq for StringBuilder