Description
Name U+200E, U+200F, or U+061C and return ltr or rtl direction, using OTHER and none for other valid scalars.
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.
Name U+200E, U+200F, or U+061C and return ltr or rtl direction, using OTHER and none for other valid scalars.
When to use this tool
Use Unicode Directional Mark Name Pair 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 scalar. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read name, direction. Use the output convention below.
Name U+200E, U+200F, or U+061C and return ltr or rtl direction, using OTHER and none for other valid scalars.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| scalar | Scalar | Required. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| name | Name | Required. Text; maximum UTF-16 length 8192. |
| direction | Direction | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"scalar": 8207
},
"output": {
"name": "RIGHT-TO-LEFT MARK",
"direction": "rtl"
}
}Limitations and assumptions
- This identifies three directional marks without running bidirectional resolution, determining paragraph direction, or verifying safe text presentation.
- 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.
- Text: Combining Mark Leading Position Flag
Check whether the first scalar of a string has Unicode Mark general category using the runtime Unicode property table; not grapheme segmentation or a validity judgment.