Struct Code 

pub struct Code { /* private fields */ }

Implementations

impl Code

pub fn new( text: &str, lang: &str, custom_highlights: Option<HashMap<String, String>>, ) -> Result<Self>

Create a new Code instance with the given text and language.

pub fn point(&self, offset: usize) -> (usize, usize)

pub fn offset(&self, row: usize, col: usize) -> usize

pub fn get_content(&self) -> String

pub fn slice(&self, start: usize, end: usize) -> String

pub fn len(&self) -> usize

pub fn len_lines(&self) -> usize

pub fn len_chars(&self) -> usize

pub fn line_to_char(&self, line_idx: usize) -> usize

pub fn char_to_byte(&self, char_idx: usize) -> usize

pub fn line_len(&self, idx: usize) -> usize

pub fn line(&self, line_idx: usize) -> RopeSlice<'_>

pub fn char_to_line(&self, char_idx: usize) -> usize

pub fn char_slice(&self, start: usize, end: usize) -> RopeSlice<'_>

pub fn byte_slice(&self, start: usize, end: usize) -> RopeSlice<'_>

pub fn byte_to_line(&self, byte_idx: usize) -> usize

pub fn byte_to_char(&self, byte_idx: usize) -> usize

pub fn tx(&mut self)

pub fn set_state_before(&mut self, offset: usize, selection: Option<Selection>)

pub fn set_state_after(&mut self, offset: usize, selection: Option<Selection>)

pub fn commit(&mut self)

pub fn insert(&mut self, from: usize, text: &str)

pub fn remove(&mut self, from: usize, to: usize)

pub fn is_highlight(&self) -> bool

pub fn highlight_interval<T: Copy>( &self, start: usize, end: usize, theme: &HashMap<String, T>, ) -> Vec<(usize, usize, T)>

Highlights the interval between start and end char indices. Returns a list of (start byte, end byte, token_name) for highlighting.

pub fn undo(&mut self) -> Option<EditBatch>

pub fn redo(&mut self) -> Option<EditBatch>

pub fn word_boundaries(&self, pos: usize) -> (usize, usize)

pub fn line_boundaries(&self, pos: usize) -> (usize, usize)

pub fn indent(&self) -> String

pub fn comment(&self) -> String

pub fn indentation_level(&self, line: usize, col: usize) -> usize

pub fn is_only_indentation_before(&self, r: usize, c: usize) -> bool

pub fn find_indent_at_line_start(&self, line_idx: usize) -> Option<usize>

pub fn smart_paste(&mut self, offset: usize, text: &str) -> usize

Paste text with indentation awareness.

1. Determine the indentation level at the cursor (base_level).
2. The first line of the pasted block is inserted at the cursor level (trimmed).
3. Subsequent lines adjust their indentation relative to the previous non-empty line in the pasted block:
   • Compute diff = change in indentation from the previous non-empty line in the source block (clamped ±1).
   • Apply diff to prev_nonempty_level to calculate the new insertion level.
4. Empty lines are inserted as-is and do not affect subsequent indentation.

This ensures that pasted blocks keep their relative structure while aligning to the cursor. Inserts text with indentation-awareness at offset. Returns number of characters inserted.

pub fn set_change_callback( &mut self, callback: Box<dyn Fn(Vec<(usize, usize, usize, usize, String)>)>, )

Set the change callback function for handling document changes