Description
Split a nomenclatural year token and lowercase suffix.
Taxonomic names, authorship strings, nomenclatural types and source-defined taxon concepts are related but distinct records. A literal token parser or source-label comparison can preserve a stated convention without resolving accepted taxonomy or establishing compliance with the applicable nomenclatural code.
Split a nomenclatural year token and lowercase suffix.
When to use this tool
Use Nomenclatural Year Suffix Token when checking the stated taxonomic source, name-token, date or concept-support convention.
How to use the tool and how it works
- Enter token. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read year, suffix. Use the output convention below.
Split a nomenclatural year token and lowercase suffix. Require exactly four digits followed by zero or more lowercase letters; return numeric year and literal suffix.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| token | Token | Required. Text; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| year | Year | Required. Safe integer. |
| suffix | Zero or more allowed lowercase suffix letters after the four-digit year; not automatically a unique reference. | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"token": "1900ab"
},
"output": {
"year": 1900,
"suffix": "ab"
}
}Limitations and assumptions
- Multiple suffix letters and year zero are accepted; this does not validate historical dates, bibliography conventions or priority.
- 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.
Alternative or Complementary methods
Consult the original taxonomic treatment and applicable nomenclatural code, and use source-aware taxonomic resolution for accepted names, priority or type status.
References
Similar or alternative tools
- Taxon Name Year Suffix Token
Split a name token from a year and optional one-letter suffix.
- Taxon Authority Year Token
Parse a four-digit authority year and preserve provenance.