| • Mattflaschen-WMF | |
| Nov 11 2014, 11:25 PM |
| F14970: PNG_rendering_lexing_error.png | |
| Mar 20 2015, 3:09 PM |
Input fails to render with a lexing error
The given example fails to render in PNG mode with a lexing error (can someone put this in plaintext in the bug report, so it's easier to reproduce?)
Extracted out of T50032. Screenshot by praveenp.
Version: unspecified
Severity: normal
Attached:
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Open | None | T50118 Math extension does not support complex scripts | |||
| Invalid | None | T59770 Unable to Render Farsi/Arabic Numbers with Math Extension | |||
| Open | None | T50032 Math extension doesn't support many languages including Malayalam, Hindi, and Tamil | |||
| Resolved | Debenben | T75285 PNG fails to render with lexing error for some input containing Malayalam | |||
| Resolved | • mobrovac | T71702 Support PNG output for mathoid | |||
| Declined | Physikerwelt | T78056 Storing PNG images retrieved from mathoid | |||
| Declined | Physikerwelt | T100514 use binary data rather than text data for math_mathml, math_html and math_svg fields |
The example in comment 1 gives the error "Failed to parse (lexing error): ക"
This example:
<math>\text{ക}</math>
gives a different message: "Failed to parse (PNG conversion failed; check for correct installation of latex and dvipng (or dvips + gs + convert)): {\text{ക}}"
This bug is not limited to Malayalam only.
Examples: Tamil: <math>\text{ப}</math>, Hindi: <math>\text{ग}</math>
This particular bug report is limited to Malayalam. Those are not just different languages, but also different alphabets, meaning a fix for this bug (e.g. a new font) will not necessarily fix those.
So if you want to track those other alphabets, please file separate reports.
I don't think it's a font issue, I think it's a TeX validation issue.
Does this bug occur with Mathoid enabled?
It should
https://www.mediawiki.org/wiki/Extension:Math/bug/75285
be rendered correctly.
the rendering of Malayalam is still not very good, but there is no error anymore, since the png is created from the svg images now