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push_str_cells

atomcode_tuix::render::cell

Function push_str_cells 

Source 
pub fn push_str_cells(row: &mut Vec<Cell>, s: &str, style: &CellStyle)
Expand description

Append each char of s as cells, all sharing style. Wide chars (CJK, emoji, etc.) expand to one real cell carrying the glyph + (display_width - 1) continuation cells so cell_index == terminal_column holds across the row — critical for the cell-diff to produce correct patches.

Control chars that would mis-align the cell model vs the terminal are normalised here:

  • \n / \r: dropped. Multi-line content must be split by the caller (push_body_text does this); writing a bare LF under raw-mode drops a row without CR, and a bare CR returns to col 0 mid-row — both produce the “staircase” bug.
  • \t: expanded to SOFT_TAB_WIDTH spaces so cell col == terminal col. Without this, the terminal jumps to its hardware tab stop (col 9/17/25/…) while our cell model advances 1 col per \t cell, and subsequent diffs patch the wrong columns.