Explain Tkinter text search method

Question

I don\'t quite understand how text.search method works. For example there is a sentence: Today a red car appeared in the park. I need to find a red car

Answer 1

It may be a problem of the indexes.

In a program of mine, i have to search the start index and calculate the end index

my method for example, it works fine:

def highlight(self):
    start = 1.0
    pos = self.area_example.search(self.item.name, start, stopindex=END)
    while pos:
        length = len(self.item.name)
        row, col = pos.split('.')
        end = int(col) + length
        end = row + '.' + str(end)
        self.area_example.tag_add('highlight', pos, end)
        start = end
        pos = self.area_example.search(self.item.name, start, stopindex=END)
    self.area_example.tag_config('highlight', background='white', foreground='red')