gui-utils:read-snips/chars-from-text

This function returns a thunk, which when called returns all of the characters and non-text-snips from the edit, one by one.

If this function encounters a snip that matches gui-utils:text-snip<%>, it uses the get-string method to get a string from the snip and returns the characters in that.

• (gui-utils:read-snips/chars-from-text text start end) -> (-> (union char (instance snip%) eof-object))
      text : (instance text%)
      start = 0 : integer
      end = (send text last-position) : integer