Description
Serialize a valid scalar as a braced backslash-u hexadecimal escape, selecting uppercase hex digits only when uppercase is true.
Text positions can be measured in UTF-16 code units, Unicode code points, grapheme clusters, or modeled display columns. These coordinates are not interchangeable. Invisible markers and delimiter policies can also affect interpretation even when a string looks unchanged, so the chosen representation needs to stay explicit.
Serialize a valid scalar as a braced backslash-u hexadecimal escape, selecting uppercase hex digits only when uppercase is true.
When to use this tool
Use Unicode Escape Uppercase Lowercase Hex Policy when you need the stated marker, coordinate, delimiter, or normalization operation under an explicit text representation.
How to use the tool and how it works
- Enter point, uppercase. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read escape. Use the output convention below.
Serialize a valid scalar as a braced backslash-u hexadecimal escape, selecting uppercase hex digits only when uppercase is true.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| point | Point | Required. Safe integer. |
| uppercase | Uppercase | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| escape | Literal braced Unicode escape text, not a decoded character. | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"point": 128512,
"uppercase": true
},
"output": {
"escape": "\\u{1F600}"
}
}Limitations and assumptions
- The result is literal escape text rather than a decoded character. No four-digit padding, surrogate-pair escape form, or full string-literal quoting is added.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
Alternative or Complementary methods
Choose the coordinate system required by the consumer. Use a full parser, renderer, or segmentation method when a local marker or delimiter rule cannot determine the complete text behavior.
References
Similar or alternative tools
- Unicode Line Separator Escape Label
Replace U+2028 and U+2029 with their literal backslash-u escape spellings and return separate line- and paragraph-separator counts.
- Text: Bidi Control Visible Name Label
Name one of the twelve Unicode Bidi_Control code points for visible inspection, without applying the bidirectional layout algorithm.