Getting line of a search term - Python Script for Notepad++ -

i'm trying automate deleting of text on html code i'm editing on notepad++, i'm using plugin pythonscript that. have 1 problem: want delete, example, <center> except first one. thought use function:

editor.rereplace("search", "replace"[, flags[, startposition[, endposition[, maxcount]]]]) 

since don't want delete first term, set startposition 1 line after 1 first term.the problem don't find scintilla function in python script locate text looking for. maybe research function find solution:

editor.research(search, matchfunction[, flags[, startposition[, endposition[, maxcount]]]]) 

but can't find function associated .research me.

matches = [] def match_found(m):     # append match start position matches array     matches.append(m.end(0))  editor.research('pattern', match_found)  matches[0]  #should contain index of *end* of first match 

m.end() since want use end of match start of next search