| tktag_add | R Documentation | 
Add TK text tags to Tk text widgets:
tktag_add() adds tags to the places of text that match a pattern.
tktag_add_first() in each row, adds tags to the first occurance that
matches a pattern.
tktag_add_row() adds text tags to the rows that match a pattern.
tktag_add(obj, tag, pattern, row_ind = NULL, all = TRUE)
tktag_add_first(obj, pattern, tag, row_ind = NULL)
tktag_add_row(obj, pattern, tag)
| obj | Tk text widget (Tk object). | 
| tag | (string) The namo of a tag to add. | 
| pattern | (string) Text pattern to add text at. | 
| row_ind | (integer) Row indices. | 
| all | (logical) If  | 
tcltk::tktag.add()
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