Description
Return that one-character code and all remaining text as value.
Catalog identifiers and labels follow local formatting conventions. Splitting or recognizing a token's shape preserves structure without establishing that its identifier or classification is valid.
Return that one-character code and all remaining text as value.
When to use this tool
Use Marc Sub Field Code Split when you need one explicit catalog-label parsing or formatting step.
How to use the tool and how it works
- Enter subfield. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read code, value. Use the output convention below.
Require subfield to begin with dollar sign and a lowercase ASCII letter or digit. Return that one-character code and all remaining text as value.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| subfield | Subfield | Required. Text; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| code | Code | Required. Text; maximum UTF-16 length 8192. |
| value | Numeric value on the basis stated in the calculation above. | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"subfield": "$aThe title"
},
"output": {
"code": "a",
"value": "The title"
}
}Limitations and assumptions
- An empty value is accepted; complete MARC syntax, separators inside values, field-specific validity, and source encoding are not checked.
- 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 cataloging scheme and source record before assigning semantic meaning or a filing order.
References
Similar or alternative tools
- Marc Indicator Blank Token
Display a space as # and otherwise preserve the indicator, returning blank independently.
- Archival Signature Level Split
Return the ordered level strings.