Arbortext Command Language > Callbacks > doc_add_callback > tbl_cell_unspan Callback Type
  
tbl_cell_unspan Callback Type
Function prototype:
function funcname (doc, cellid, op)
tbl_cell_unspan is called whenever the tbl_cell_unspan function is called.
Arguments
doc is the identifier of the document containing cellid.
cellid is the table object ID (toid) of the master cell that contains the spanned region's content and attributes.
op is the function callback operation. Callbacks are called twice in succession with op specifying the stage of callback operation.
1. op == 1 first call — The returned argument specifies whether the execution should continue or be stopped:
0 — Continue callback processing.
-1 — Stop further callback processing.
2. op == 2 second call — Occurs unless the processing was stopped during the first call. The returned argument allows or prevents basic Arbortext Editor processing after all callbacks have been called:
0 — Basic Arbortext Editor processing allowed.
-1 — Basic Arbortext Editor processing prevented.
* 
tbl_cell_unspan is not called if a region is unspanned as the result of a rectangle copy operation.