Function prevTabDist

docs/components/editor.js:62–62

(col)

    
    // `prevIndentTabStop`, distance to the previous tab stop from `col`.
    const prevTabDist = (col) => { const r = col % TAB_SIZE; return r === 0 ? TAB_SIZE : r; };

    // Full lines covered by `sel`; excludes the trailing line if `sel.end` sits exactly past a `\n`.
    const lineRange = (text, sel) => {