Bug 207275
| Summary: | [si_LK] All Repaya form of the conjuncts in sinhala with 200D is appearing wrongly - Priority - C | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Satyabrata Maitra <smaitra> | ||||||||
| Component: | fonts-sinhala | Assignee: | Rahul Bhalerao <b.rahul.pm> | ||||||||
| Status: | CLOSED RAWHIDE | QA Contact: | |||||||||
| Severity: | low | Docs Contact: | |||||||||
| Priority: | medium | ||||||||||
| Version: | 7 | CC: | aalam, behdad, eng-i18n-bugs, lizhang, llch, snavin, yshao | ||||||||
| 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: | 2007-11-16 06:06:07 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: | |||||||||||
| Bug Blocks: | 150223, 208066, 211958 | ||||||||||
| Attachments: |
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Description
Satyabrata Maitra
2006-09-20 11:46:30 UTC
Unicode Combinations with 200D : U+0D9A U+0DBB U+0DCA U+200D U+0D9A U+0D9B U+0DBB U+0DCA U+200D U+0D9A U+0D9C U+0DBB U+0DCA U+200D U+0D9A U+0D9D U+0DBB U+0DCA U+200D U+0D9A U+0D9E U+0DBB U+0DCA U+200D U+0D9A U+0D9F U+0DBB U+0DCA U+200D U+0D9A U+0DA0 U+0DBB U+0DCA U+200D U+0D9A U+0DA1 U+0DBB U+0DCA U+200D U+0D9A U+0DA2 U+0DBB U+0DCA U+200D U+0D9A U+0DA3 U+0DBB U+0DCA U+200D U+0D9A U+0DA4 U+0DBB U+0DCA U+200D U+0D9A U+0DA5 U+0DBB U+0DCA U+200D U+0D9A U+0DA6 U+0DBB U+0DCA U+200D U+0D9A U+0DA7 U+0DBB U+0DCA U+200D U+0D9A U+0DA8 U+0DBB U+0DCA U+200D U+0D9A U+0DA9 U+0DBB U+0DCA U+200D U+0D9A U+0DAA U+0DBB U+0DCA U+200D U+0D9A U+0DAB U+0DBB U+0DCA U+200D U+0D9A U+0DAC U+0DBB U+0DCA U+200D U+0D9A U+0DAD U+0DBB U+0DCA U+200D U+0D9A U+0DAE U+0DBB U+0DCA U+200D U+0D9A U+0DAF U+0DBB U+0DCA U+200D U+0D9A U+0DB0 U+0DBB U+0DCA U+200D U+0D9A U+0DB1 U+0DBB U+0DCA U+200D U+0D9A U+0DB3 U+0DBB U+0DCA U+200D U+0D9A U+0DB4 U+0DBB U+0DCA U+200D U+0D9A U+0DB5 U+0DBB U+0DCA U+200D U+0D9A U+0DB6 U+0DBB U+0DCA U+200D U+0D9A U+0DB7 U+0DBB U+0DCA U+200D U+0D9A U+0DB8 U+0DBB U+0DCA U+200D U+0D9A U+0DB9 U+0DBB U+0DCA U+200D U+0D9A U+0DBA U+0DBB U+0DCA U+200D U+0D9A U+0DBB U+0DBB U+0DCA U+200D U+0D9A U+0DBD U+0DBB U+0DCA U+200D U+0D9A U+0DC0 U+0DBB U+0DCA U+200D U+0D9A U+0DC1 U+0DBB U+0DCA U+200D U+0D9A U+0DC2 U+0DBB U+0DCA U+200D U+0D9A U+0DC3 U+0DBB U+0DCA U+200D U+0D9A U+0DC4 U+0DBB U+0DCA U+200D U+0D9A U+0DC5 U+0DBB U+0DCA U+200D U+0D9A U+0DC6 U+0DBB U+0DCA U+200D U+0D9A U+0D9A U+0DBB U+0DCA U+200D U+0DBA U+0DCA U+200D U+0DBA Unicode Combinations without 200D : U+0D9A U+0DBB U+0DCA U+0D9A U+0D9B U+0DBB U+0DCA U+0D9A U+0D9C U+0DBB U+0DCA U+0D9A U+0D9D U+0DBB U+0DCA U+0D9A U+0D9E U+0DBB U+0DCA U+0D9A U+0D9F U+0DBB U+0DCA U+0D9A U+0DA0 U+0DBB U+0DCA U+0D9A U+0DA1 U+0DBB U+0DCA U+0D9A U+0DA2 U+0DBB U+0DCA U+0D9A U+0DA3 U+0DBB U+0DCA U+0D9A U+0DA4 U+0DBB U+0DCA U+0D9A U+0DA5 U+0DBB U+0DCA U+0D9A U+0DA6 U+0DBB U+0DCA U+0D9A U+0DA7 U+0DBB U+0DCA U+0D9A U+0DA8 U+0DBB U+0DCA U+0D9A U+0DA9 U+0DBB U+0DCA U+0D9A U+0DAA U+0DBB U+0DCA U+0D9A U+0DAB U+0DBB U+0DCA U+0D9A U+0DAC U+0DBB U+0DCA U+0D9A U+0DAD U+0DBB U+0DCA U+0D9A U+0DAE U+0DBB U+0DCA U+0D9A U+0DAF U+0DBB U+0DCA U+0D9A U+0DB0 U+0DBB U+0DCA U+0D9A U+0DB1 U+0DBB U+0DCA U+0D9A U+0DB3 U+0DBB U+0DCA U+0D9A U+0DB4 U+0DBB U+0DCA U+0D9A U+0DB5 U+0DBB U+0DCA U+0D9A U+0DB6 U+0DBB U+0DCA U+0D9A U+0DB7 U+0DBB U+0DCA U+0D9A U+0DB8 U+0DBB U+0DCA U+0D9A U+0DB9 U+0DBB U+0DCA U+0D9A U+0DBA U+0DBB U+0DCA U+0D9A U+0DBB U+0DBB U+0DCA U+0D9A U+0DBD U+0DBB U+0DCA U+0D9A U+0DC0 U+0DBB U+0DCA U+0D9A U+0DC1 U+0DBB U+0DCA U+0D9A U+0DC2 U+0DBB U+0DCA U+0D9A U+0DC3 U+0DBB U+0DCA U+0D9A U+0DC4 U+0DBB U+0DCA U+0D9A U+0DC5 U+0DBB U+0DCA U+0D9A U+0DC6 U+0DBB U+0DCA U+0D9A U+0D9A U+0DBB U+0DCA U+0DBA U+0DCA U+0DBA 1. The entire bug can be summerized as:
Combination of:
consonant + u0DCA + u0D9A
does not produce the repaya form.
2. The bug description says,
consonant + u0DCA + u0D9A
should not produce any substitution and
consonant + u0DCA + u200D + u0D9A should produce substitution.
This description is logically wrong since it demands use of
Zero-Width-Non-Joiner(u200D) for combining two consonants and a straight
combination to be desplayed without any substitution. Though its technically
possible, it can not be recommanded.
I will need to study this issue in detail and verify the implementations in the
font for other similar cases.
CORRRECTION: In previous comment, the combinations are: 1. u0DBB + u0DCA + consonant (and not consonant + u0DCA + u0D9A ) 2. u0DBB + u0DCA + u200D + consonant (and not consonant + u0DCA + u200d + u0D9A ) The character u0DBB gets a post-base *reph* form. In pango its class bit is currently '_ct', it should be '_rv' similar to u0930 of devanagari. The character u0DBB gets a above-base *reph* form. In pango its class bit is currently '_ct', it should be '_rv' similar to u0930 of devanagari. The Comment #5 is correction to Comment #4. According to the standards accepted by govt. agencies in Srilanka, the rephaya form should be displayed as a combination of 0DBB + 0DCA + 200D + Consonant Though it technically adds lot of redendancy work in font development, this standard is accepted by most of the Sinhala fonts. Also its not very convincing to use rephaya(reph) forms in this way while all other Indic scripts have a general standard for it. Though this is what Sinhala community has been using for developing i18n tools. Changing it all would be lot difficult. I found the glyphs for most rephaya forms present in the font but they are missing the ligature rules. Thus this bug can be solved in font, no modification needed in Pango. Created attachment 137294 [details]
Patch to fix all rephaya problems
Font was missing GSUB rules for the rephaya forms. I have added these rules.
Thanks Rahul. Built into fonts-sinhala-0.2.1-1 Created attachment 153939 [details]
Tested Images for verification
Created attachment 153941 [details]
Tested Image2 for verification
snavin, can you please check above combination whether those are correct or not? A S Alam, I have checked above combination, those are correct. So this is fixed now? based on comment #13, it is marked fixed, if found further issue, please reopen issue, thanks |