Description
Return decoded-byte count for a final partial Ascii85 group.
Ascii85 uses full four-byte groups, final partial groups and a special all-zero shorthand. A group-length or shorthand helper does not validate all digits, numeric overflow or stream delimiters.
Return decoded-byte count for a final partial Ascii85 group.
When to use this tool
Use Decoding: Ascii85 Partial Group Length when checking one explicitly supported Ascii85 fragment.
How to use the tool and how it works
- Enter symbolCount. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read result. Expand result to inspect the returned fields.
Return decoded-byte count for a final partial Ascii85 group. Require whole symbolCount in [2,4]; decodedBytes = symbolCount-1.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| symbolCount | Symbol Count | Required. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| result | Returned object; expand its named members below. | Required. Object. |
| result.decodedBytes | Decoded Bytes | Calculated result member: number. |
json
{
"input": {
"symbolCount": 3
},
"output": {
"result": {
"decodedBytes": 2
}
}
}Limitations and assumptions
- No symbols or padding values are inspected; full groups and z shorthand need different handling.
- Outputs are nested inside result. Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use the intended full Ascii85 implementation for actual byte decoding, framing and canonicality.
References
Similar or alternative tools
- Ascii85 Shorthand Zero Group Token
Decode exactly the Ascii85 zero shorthand.
- Base45 Pair Triple Group Value
Decode one Base45 two- or three-symbol group.