Section on overlapping letter glyphs
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- HTML
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Description
In various styles of Persian/Arabic script, glyphs of letters may overlap intentionally. I think we need to cover this script feature under letter positioning section.
An example from Zarnegar 5.2 Catalog (http://sinasoft.com/Downloads/zarnegar5.2/catalog/Zar52Cat.pdf): on the right we have "before repositioning" and on the left we have "after repositioning".
We should also note that sometimes, mostly because of bad (mainly practical) font glyph data, unintentional glyph overlap may occur. This unintentional behavior is different from the intentional design mentioned above, and a shaping engine may decide to be smart about this and resolve it somehow.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the existing letter positioning section in the ALReq documentation and review the linked Zarnegar catalog example. Document the distinction between intentional overlap in Arabic/Persian glyphs and unintentional overlap caused by font data, including the shaping-engine consideration described in the issue.
Written by the indexing model from the issue text.
Assessment
- Domain
- documentation, internationalization
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100