hyphens:auto Language Support Note
Audit independently supplied language/dictionary prerequisites for automatic hyphenation; support does not guarantee particular hyphen opportunities or breaks. Explicit supplied computed/layout context only; not a browser cascade/layout engine or cross-browser guarantee.
Description
Automatic hyphenation depends on language and available browser dictionary support.
Automatic hyphenation depends on language and available browser dictionary support.1
Caller-confirmed prerequisites do not guarantee particular line breaks. Use hyphens:auto Language Support Note to evaluate the supplied inputs under the specific model below.
When to use hyphens:auto Language Support Note
Use hyphens:auto Language Support Note to evaluate the supplied inputs under the specific model below. Define the supplied layout, token or rendering scenario and establish the relevant units and browser context independently.
How to use hyphens:auto Language Support Note and understand its results
- Define the supplied layout, token or rendering scenario and establish the relevant units and browser context independently.
- Enter Hyphens auto, Explicit language present, Ua dictionary supported using the field table and validation rules below, then run the tool.
- Read Auto hyphenation prerequisites witnessed and interpret units, signs, ordering and placeholders as explained below.
- If the tool reports an input error, correct that field and rerun. A successful false result, empty match list or unknown-evidence placeholder has the specific meaning described here; check the limitations before applying the result.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| hyphensAuto | Hyphens auto | boolean | Required; constraints below |
| explicitLanguagePresent | Explicit language present | boolean | Required; constraints below |
| uaDictionarySupported | Ua dictionary supported | boolean | Required; constraints below |
Enter independently established booleans for automatic hyphenation, a language tag and availability of an appropriate dictionary. The output is their conjunction. It records prerequisites in this limited model rather than inspecting a browser's dictionary, font or actual line breaks.
eligible = hyphensAuto and languageTagged and dictionaryAvailable Field order, units and branch conditions follow the implementation explanation above.
| Output field | Meaning | Value type |
|---|---|---|
| autoHyphenationPrerequisitesWitnessed | Auto hyphenation prerequisites witnessed | boolean |
{
"input": {
"hyphensAuto": true,
"explicitLanguagePresent": false,
"uaDictionarySupported": true
},
"output": {
"autoHyphenationPrerequisitesWitnessed": false
}
}Limitations and assumptions
Caller-confirmed prerequisites do not guarantee particular line breaks. Apply the exact scope and assumptions described above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are stated above; extremely large inputs or outputs can also be rejected. These errors differ from successful results such as false, no matches or unknown evidence.
Alternative or Complementary methods
Use white-space Collapse Behavior Table for a related task: White-space handling controls collapsing, preserved breaks and wrapping.
Use Unitless line-height Recommendation Lookup for a related task: A unitless line-height is a multiplier applied to the receiving element's font size.
References
-
hyphens:auto Language Support Note — tool.io
Similar or alternative tools
- white-space Collapse Behavior Table
White-space handling controls collapsing, preserved breaks and wrapping.
- Unitless line-height Recommendation Lookup
A unitless line-height is a multiplier applied to the receiving element's font size.