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Remove A Range Of Lines (LCC.web_file.remove_lines)

Signature​

removed, err = LCC.web_file.remove_lines(path, start_line, count?, timeout?)

Parameters​

  • path
    String. File path.
  • start_line
    Number. Starting line index; positive numbers start at 1, negative values count from the end (-1 is the last line), and 0 means after the last line.
  • count
    Number, optional. Number of lines to remove, default 1.
  • timeout
    Number, optional. Request timeout in seconds, default 60.

Returns​

  • removed
    Table. Array of removed lines; returns {} when the request succeeds but nothing is removed, and nil on failure.
  • err
    String or nil. Error description when the operation fails.

Notes​

Removes several lines at once from the file.
See the parameter description above for line-number rules.
Missing files, out-of-range selections, or count = 0 all return {}.
The returned lines can be logged or used to build an undo stack.

Example​

local removed, err = LCC.web_file.remove_lines("/config/list.txt", 2, 3)
if removed then
    LCC.log(2, "Removed lines", table.concat(removed, ","))
end