Bug 543906
| Summary: | [ml_IN] Conjunct 'sple' (as in display) is not rendered correctly with Meera font | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Praveen Arimbrathodiyil <parimbra> |
| Component: | smc-fonts | Assignee: | Pravin Satpute <psatpute> |
| Status: | CLOSED UPSTREAM | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 19 | CC: | apeter, fonts-bugs, harshula, i18n-bugs, psatpute, psuresh, rajeeshknambiar, smc-discuss, tools-bugs |
| Target Milestone: | --- | Keywords: | i18n |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-04-29 10:37:27 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 747193 | ||
| Bug Blocks: | |||
| Attachments: | |||
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Description
Praveen Arimbrathodiyil
2009-12-03 13:25:53 UTC
Created attachment 375771 [details]
സ്പ്ലെ (sple) in debian and fedora
can you update which pango version you are using? and also smc-fonts version pravi@savannah:~$ apt-cache policy libpango1.0-0 libpango1.0-0: Installed: 1.26.0-1 Candidate: 1.26.1-1 I updated it to 1.26.1-1 now. It is working correctly Meera font is from http://ftp.de.debian.org/debian/pool/main/t/ttf-indic-fonts/ttf-indic-fonts_0.5.6.tar.gz dont know which version of meera fonts included in ttf-indic-fonts_0.5.6, but when i installed fonts from there tarball its working properly on fedora 12 as well. We are using http://mirrors.igsobe.com/nongnu/smc/fonts/malayalam-fonts-04.2.zip in fedora, which is latest upstream version. can you check which version of malayalam-fonts ttf-indic-fonts_0.5.6 uses, so we can add that in upstream and update package while investigating more, This bug is introduced in migration from malayalam-fonts-04.1.zip to malayalam-fonts-04.2.zip since things work well with malayalam-fonts-04.1.zip conjunct 'spa' is changed its property from 'pres' to 'akhn' from 04.1 to 04.2. See attachments. Created attachment 376068 [details]
fontforge glyphinfo/Ligature for conjunct spa in Meera 04.1
'pres' Pre Base Substitutions in Malayalam lookup 4 subtable s1xxp1
Created attachment 376069 [details]
fontforge glyphinfo/Ligature for conjunct spa in Meera 04.2
'akhn' Akhand in Malayalam lookup 0 subtable s1 xx p1
Created attachment 404692 [details]
Proposed Solution in ttf
We added 4 rules
blwf: xx l3 -> l4
ccmp: s1p1 -> s1 xx p1
calt: s1p1 xx l3 -> s1p1 l4 (blwf)
calt: s1p1 l4 -> s1 xx p1 l4 (ccmp)
This works for Pango and should also work on Uniscribe, but not on ICU and QT(Harfbuzz).
(In reply to comment #9) > Created an attachment (id=404692) [details] > Proposed Solution in ttf > > We added 4 rules > > blwf: xx l3 -> l4 This rule will make the l4 glyph appear below any Consonant/Conjunct followed by xx l3(eg. ഡ്ല, യ്ല, റ്റ്ല etc.) and it will go against traditional orthography. Which means more contextual rules. > ccmp: s1p1 -> s1 xx p1 > calt: s1p1 xx l3 -> s1p1 l4 (blwf) > calt: s1p1 l4 -> s1 xx p1 l4 (ccmp) > > This works for Pango and should also work on Uniscribe, but not on ICU and > QT(Harfbuzz). Created attachment 408315 [details]
fix only for pango
Should work in Pango now...
This needs ccmp feature, same is requested for icu and Harfbuzz: https://bugs.freedesktop.org/show_bug.cgi?id=27485 This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component. Hi All, Pango, Harfbuzz and Windows layout engine all appear to support CCMP for Indic. However, ICU still does not. The ICU developers are under the incorrect assumption that the Windows layout engine does not support CCMP for Indic. So, in terms of CCMP support for Indic, it looks like we just need ICU fixed: http://bugs.icu-project.org/trac/ticket/7601 cya, # ccmp is very important feature, it gives good flexibility to font developers. This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle. Changing version to '19'. (As we did not run this process for some time, it could affect also pre-Fedora 19 development cycle bugs. We are very sorry. It will help us with cleanup during Fedora 19 End Of Life. Thank you.) More information and reason for this action is here: https://fedoraproject.org/wiki/BugZappers/HouseKeeping/Fedora19 (In reply to Naveen Kumar from comment #11) > Created attachment 408315 [details] > fix only for pango > > Should work in Pango now... Please update this bug by testing against latest harfbuzz if its still not giving expected result test it with proposed solution by Naveen kumar. Is this bug still exits with latest version of harfbuzz and smc-fonts? Created attachment 890709 [details]
Image showing bug still exist
Reviewed this issue with Ani last week. Issue is still pending and need contextual rules as mentioned by Naveen earlier.
Upstream bug available on https://savannah.nongnu.org/bugs/index.php?28043 Closing as a upstream. |