Description
Return a semicolon-terminated numeric character-reference spelling using decimal digits or the hexadecimal x form.
Unicode scalar values are distinct from UTF-8 bytes and UTF-16 code units. One scalar can require several units, and printable escape text is a representation of those values rather than execution or normalization of a string.
Return a semicolon-terminated numeric character-reference spelling using decimal digits or the hexadecimal x form.
When to use this tool
Use Encoding: Html Numeric Reference Scalar when inspecting one scalar, code-unit layout or literal escape representation.
How to use the tool and how it works
- Enter codepoint, radix. 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.
Require a Unicode scalar codepoint and radix exactly 10 or 16. Return a semicolon-terminated numeric character-reference spelling using decimal digits or the hexadecimal x form.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| codepoint | Codepoint | Required. Safe integer. |
| radix | Radix | Required. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| result | Object containing the named calculated members below. | Required. Object. |
| result.reference | Reference | Calculated result member: string. |
{
"input": {
"codepoint": 65,
"radix": 16
},
"output": {
"result": {
"reference": "A"
}
}
}Limitations and assumptions
- This emits reference text rather than parsing HTML. HTML's input-error recovery and special numeric-reference remappings can differ from Unicode scalar identity, particularly for zero and control values.
- 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 a full Unicode encoder or parser when processing strings, and handle normalization, graphemes and context-specific escaping separately.
References
Similar or alternative tools
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