Split ASCII Data splits ASCII text into separate parts using a literal delimiter chosen by the user.
It is useful for CSV-like examples, delimiter debugging, simple parser tests, and turning one line of test data into a readable list of parts.
The delimiter is literal rather than a regular expression. Empty pieces are preserved, which means adjacent delimiters create an empty line in the output and a trailing delimiter produces a final empty part.
Start with the sample comma-separated text, then try a delimiter such as a pipe or a single space. Check the part count after each run.
The delimiter itself is not included in the returned parts. Because ASCII includes whitespace, a space delimiter is valid and should be entered deliberately.
A useful verification is to join the split output again with the same delimiter and confirm that it reconstructs the original input when no application-specific trimming is required.
Empty input is rejected, and a blank delimiter is rejected because splitting on an empty string would produce a very different operation. The result remains plain text with one part per line.
For structured CSV with quoting rules, use a real CSV parser. This utility is intentionally a literal delimiter splitter for ASCII test data and simple workflows.
Literal splitting is useful when the delimiter is known and the input format is simple. The tool does not implement quoting, escaping, or delimiter-aware parsing rules, so it is best for predictable test data rather than full CSV or log formats with embedded delimiters.
Preserving empty parts is intentional. In data such as a,,b, the empty middle field can carry meaning, so silently dropping it would change the structure. The same applies to a trailing delimiter, which produces a final empty part that remains visible as an empty line in the output.
Round-trip testing is especially helpful here. Split a string, join the parts using the same literal delimiter, and compare the reconstructed value with the original. If the values differ, inspect whether the source contained trimming or line-ending behavior that the simple splitter is not supposed to change.
If the delimiter itself contains multiple characters, the entire sequence is matched literally. This can be useful for separators such as :: or |~ but should be documented in the fixture so another tool does not accidentally interpret the same sequence as a regular expression or syntax token.