Description
List zero-based UTF-16 indices and numeric points for exactly U+200B, U+200C, U+200D, U+2060, and U+FEFF in text.
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.
List zero-based UTF-16 indices and numeric points for exactly U+200B, U+200C, U+200D, U+2060, and U+FEFF in text.
When to use this tool
Use Zero Width Character Position Label 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. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read indices, points. Use the output convention below.
List zero-based UTF-16 indices and numeric points for exactly U+200B, U+200C, U+200D, U+2060, and U+FEFF in text.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| text | Text | Required. Text; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| indices | Zero-based UTF-16 code-unit positions. | Required. Array of safe integer; maximum items 256. |
| points | Numeric Unicode values for the recognized markers. | Required. Array of safe integer; maximum items 256. |
{
"input": {
"text": "ab"
},
"output": {
"indices": [
1,
3
],
"points": [
8203,
8205
]
}
}Limitations and assumptions
- This is a fixed marker list, not all invisible characters. Nothing is removed or rendered, and positions are code units rather than grapheme or display columns.
- 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 Zero Width Space Break Marker
Return zero-based UTF-16 indexes of U+200B zero-width spaces and their count.
- 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.