How about you scan it into a temporary textbox, parse it, moving the parsed pieces to the desired box. This should leave the temp box empty, and use that condition to indicate the parsing is complete. But do it in baby steps
- Select the first segment of string to parse
- Copy it to the destination control
- Back in the temp text box, delete the text you “moved”.
repeat for all segments. When step 3 of the the last segment occurs, the temp box should be empty.