Find and explain an extra space
Inspect the raw difference and keep exact mismatch separate from a configured match.
For operators
Read these instructions on any device. Watch or practise a chapter on a desktop or laptop, with a desktop or mobile application layout. Demonstrations use sample data and simulated scanners.
Find and explain an extra space
- Start capture in the focused box
Start capture in the focused box.
Start capture explicitly. Only this box collects keyboard input. These keystrokes are simulated; the course does not measure a physical scanner.
- Scan a value with an extra space
Scan a value with an extra space.
This prepared input has one trailing ASCII space. Read the escaped text instead of judging by the visible barcode or number.
- Keep the independent expectation exact
Keep the independent expectation exact.
The known encoded value has no trailing space. An exact mismatch identifies a real difference; it must not be hidden by automatic trimming.
- Name the invisible characters
Name the invisible characters.
The inspector shows Unicode names and code points. It helps distinguish spaces and controls that an ordinary text view can hide.
- Open explicit comparison rules
Open explicit comparison rules.
Rules transform received text in order. The original capture and exact comparison remain visible. They do not reprogram the scanner.
- Add an explicit space-trimming rule
Add an explicit space-trimming rule.
Configured match is a separate result. The raw trailing space and exact mismatch remain evidence of what arrived.