View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000345 | luatex | luatex bug | public | 2010-03-10 10:29 | 2010-04-03 18:01 |
| Reporter | mehdioa | Assigned To | Taco | ||
| Priority | normal | Severity | minor | Reproducibility | have not tried |
| Status | closed | Resolution | fixed | ||
| Platform | Windows | OS | XP | OS Version | SP3 |
| Target Version | 0.60.0 | Fixed in Version | 0.60.0 | ||
| Summary | 0000345: Kerning is not perfect in math mode | ||||
| Description | If you run \starttext \startformula V) V\exists F\exists \stopformula \stoptext the space between W and ) for example is not correct. | ||||
| Tags | No tags attached. | ||||
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The italic corrections are missing. I strongly suspect this is a context problem, not an engine problem. |
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I looked at is some more: The reason why there is no italic correction is because luatex sees a simple list of mathords, and it does not apply italic corrections between those when a 'new math font' is being used. (if it did, operators like "sin" would come out badly). Instead, it relies on ordinary inter-glyph kerning. I am not at all sure what the best solution for this is, as I have no idea how MS Word differentiates between the formula above and 'multi-letter identifiers'. Perhaps luatex should look at the \catcode of the characters in question? Or perhaps these inter-char kerns actually exist in Cambria? |
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Commit 3480 is an attempt at a fix for bug 345: when the current math font is a new math font, check against \catcode <cur_c> == 11 to suppress the italic correction, instead of looking at the value of space(<cur_f>). |
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better keep this at feedback for now |
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Just tested luatex 0.52 and it is much better now. |
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I'm guessing this is resolved now |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2010-03-10 10:29 | mehdioa | New Issue | |
| 2010-03-10 10:29 | mehdioa | File Added: test.pdf | |
| 2010-03-10 11:14 | Taco | Note Added: 0000466 | |
| 2010-03-10 11:56 | Taco | Note Added: 0000467 | |
| 2010-03-10 11:56 | Taco | Assigned To | => Taco |
| 2010-03-10 11:56 | Taco | Status | new => feedback |
| 2010-03-13 11:54 | Taco | Note Added: 0000477 | |
| 2010-03-13 11:54 | Taco | Status | feedback => resolved |
| 2010-03-13 11:54 | Taco | Resolution | open => fixed |
| 2010-03-13 12:40 | Taco | Note Added: 0000481 | |
| 2010-03-13 12:40 | Taco | Status | resolved => feedback |
| 2010-03-13 12:40 | Taco | Resolution | fixed => reopened |
| 2010-03-16 21:00 | Taco | Target Version | => 0.60.0 |
| 2010-03-18 08:03 | mehdioa | Note Added: 0000491 | |
| 2010-03-18 08:03 | mehdioa | Status | feedback => assigned |
| 2010-03-18 15:44 | Taco | Note Added: 0000492 | |
| 2010-03-18 15:44 | Taco | Status | assigned => resolved |
| 2010-03-18 15:44 | Taco | Resolution | reopened => fixed |
| 2010-04-03 18:00 | Taco | Fixed in Version | => 0.60.0 |
| 2010-04-03 18:01 | Taco | Status | resolved => closed |
