python在gtk textview中搜索文本

Question

I have looked around and I would think this to be really simple, for some reason I ahve only found parts of what I need.

I have made a text editor and I have a box that what is typed it will find the problem is that it will only find the first word the in the text view adn I can't get it to search the next line. like a find function in a textdocument.

def search(found):
    search_str = findentry.get_text()
    start_iter =  textbuffer.get_start_iter()
    found =       start_iter.forward_search(search_str,0, None) 
    if found:
      match_start,match_end = found
      textbuffer.select_range(match_start,match_end)

I thought I would be able to do a button that is a search next and make it forward search again adding something and a variable +1. how can I make it search forward and backwards.

Answer 1

You are using get_start_iter() , which returns the first position in text buffer. Probably, you want to start from match_end , which is the position where word ends in the first search, that is, you should start from there.

Assuming you are returning found and calling again search with that parameter, then can replace the line:

    start_iter =  textbuffer.get_start_iter()

by

    start_iter = found[1] if found else textbuffer.get_start_iter()

The first time, or whenever you want to reset the search, you can pass found=None .