Function: treesit-node-start

treesit-node-start is a function defined in treesit.c.

Signature

(treesit-node-start NODE)

Documentation

Return the NODE's start position in its buffer.

If NODE is nil, return nil.

Other relevant functions are documented in the treesit group.

View in manual

Shortdoc

;; treesit
(treesit-node-start node)
    e.g. => 1

Source Code

// Defined in /usr/src/emacs/src/treesit.c
{
  if (NILP (node)) return Qnil;
  treesit_check_node (node);
  treesit_initialize ();

  TSNode treesit_node = XTS_NODE (node)->node;
  ptrdiff_t visible_beg = XTS_PARSER (XTS_NODE (node)->parser)->visible_beg;
  uint32_t start_byte_offset = ts_node_start_byte (treesit_node);
  struct buffer *buffer
    = XBUFFER (XTS_PARSER (XTS_NODE (node)->parser)->buffer);
  ptrdiff_t start_pos
    = buf_bytepos_to_charpos (buffer,
			      start_byte_offset + visible_beg);
  return make_fixnum (start_pos);
}