Description
Count visible UTF-16 width after replacing each CRLF, CR or LF with an explicitly supplied display token width.
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.
Count visible UTF-16 width after replacing each CRLF, CR or LF with an explicitly supplied display token width.
When to use this tool
Use Escaped Newline Visible Width Delta 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 text, newlineVisibleWidth. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read newlineCount, originalCodeUnits, displayedCodeUnits, delta. Use the output convention below.
Count CRLF, CR, and LF newline tokens, subtract their original UTF-16 lengths, and add newlineVisibleWidth per token for displayedCodeUnits and delta.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| text | Text | Required. Text; maximum UTF-16 length 8192. |
| newlineVisibleWidth | Newline Visible Width | Required. Safe integer; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| newlineCount | Newline Count | Required. Safe integer. |
| originalCodeUnits | Original Code Units | Required. Safe integer. |
| displayedCodeUnits | Displayed Code Units | Required. Safe integer. |
| delta | Delta | Required. Safe integer. |
{
"input": {
"text": "a\r\nb\n",
"newlineVisibleWidth": 2
},
"output": {
"newlineCount": 2,
"originalCodeUnits": 5,
"displayedCodeUnits": 6,
"delta": 1
}
}Limitations and assumptions
- The nonnegative integer width is a supplied replacement width. CRLF counts once but occupies two original code units; this estimate does not transform text or measure terminal cells.
- 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
- 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.
- Html Visible Text Softbreak Token
Recognize only a bare HTML br token as a visible-text line break, without parsing an HTML document.