Struct HtmlWithLimit

pub(super) struct HtmlWithLimit {
    buf: String,
    len: usize,
    limit: usize,
    queued_tags: Vec<&'static str>,
    unclosed_tags: Vec<&'static str>,
}

A buffer that allows generating HTML with a length limit.

This buffer ensures that:

• all tags are closed,
• tags are closed in the reverse order of when they were opened (i.e., the correct HTML order),
• no tags are left empty (e.g., <em></em>) due to the length limit being reached,
• all text is escaped.

Fields

buf: String

len: usize

limit: usize

queued_tags: Vec<&'static str>

A list of tags that have been requested to be opened via Self::open_tag() but have not actually been pushed to buf yet. This ensures that tags are not left empty (e.g., <em></em>) due to the length limit being reached.

unclosed_tags: Vec<&'static str>

A list of all tags that have been opened but not yet closed.

Implementations

impl HtmlWithLimit

pub(super) fn new(length_limit: usize) -> Self

Create a new buffer, with a limit of length_limit.

pub(super) fn finish(self) -> String

Finish using the buffer and get the written output. This function will close all unclosed tags for you.

pub(super) fn push(&mut self, text: &str) -> ControlFlow<(), ()>

Write some plain text to the buffer, escaping as needed.

This function skips writing the text if the length limit was reached and returns ControlFlow::Break.

pub(super) fn open_tag(&mut self, tag_name: &'static str)

Open an HTML tag.

Note: HTML attributes have not yet been implemented. This function will panic if called with a non-alphabetic tag_name.

pub(super) fn close_tag(&mut self)

Close the most recently opened HTML tag.

fn flush_queue(&mut self)

Write all queued tags and add them to the unclosed_tags list.

fn close_all_tags(&mut self)

Close all unclosed tags.

Trait Implementations

impl Debug for HtmlWithLimit

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

Formats the value using the given formatter.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 88 bytes