Re: converting devanagari to mangal unicode
On 12/16/2002 05:09:04 PM Eric Muller wrote: >May be Sunil is just asking for a conversion of data, presumably from >ISCII to Unicode. Or perhaps from one of a variety of non-standard Devanagari encodings. - Peter --- Peter Constable Non-Roman Script Initiative, SIL International 7500 W. Camp Wisdom Rd., Dallas, TX 75236, USA Tel: +1 972 708 7485
RE: converting devanagari to mangal unicode
Bob Hallissy wrote: > NB: One of the complexities you may run into, and which will limit your > options, is that your encoding may store text in a different order than > Unicode requires. If this is the case, TECkit can do the rearrangement for > you but I'm not sure ICU will easily do that. Certainly the current > standard for XML-based descriptions of encoding mappings as given in > Unicode Technical Report 22 (see > http://www.unicode.org/unicode/reports/tr22/ ) cannot express such > mappings. Someone made me notice recently that UTR#22 can indeed implement Indic visual-to-logical mappings, provided that one chooses the whole Indic "syllable" as a mapping unit. E.g.: Of course, this requires very big tables, which could be avoided using a smarter mechanisms. Moreover, it only works with well-formed sequences in an anticipated set of languages, but fails with misspellings or new orthographies. _ Marco
Re: converting devanagari to mangal unicode
On 16/12/2002 22:02:36 "Magda Danish (Unicode)" wrote: >> I have a data in devanagri true type font i want to convert >> this data into mangal unicode. Sunil, For Windows or Mac use: If you want to convert data from one encoding to Unicode, one option is to look at the free TECkit package. There are many non-Unicode encodings of Devanagari, so I'm unable to guess how your data is currently encoded. TECkit is table-driven, i.e., you find or prepare a description of the mapping between your encoding and Unicode, and then TECkit uses that description to convert data. You may even be able to find a mapping description already prepared as TECkit can use the XML mapping definitions from ICU (see http://oss.software.ibm.com/cvs/icu/charset/data/xml/) For more information about TECkit or to download it, see http://www.sil.org/nrsi/teckit/ Depending on the characteristics of your encoding and your desire to do a bit of programming, you may also be able to incorporate the ICU (International Components for Unicode) library into your own program to do the conversion you need. See http://oss.software.ibm.com/developerworks/opensource/icu/project/ for more information. NB: One of the complexities you may run into, and which will limit your options, is that your encoding may store text in a different order than Unicode requires. If this is the case, TECkit can do the rearrangement for you but I'm not sure ICU will easily do that. Certainly the current standard for XML-based descriptions of encoding mappings as given in Unicode Technical Report 22 (see http://www.unicode.org/unicode/reports/tr22/ ) cannot express such mappings. Bob
RE: converting devanagari to mangal unicode
John Hudson wrote: > At 03:09 PM 12/16/2002, Eric Muller wrote: > > >>In order to convert any Devanagari font to be rendered in > the same way, > > > >May be Sunil is just asking for a conversion of data, > presumably from > >ISCII to Unicode. > > Ah, yes, this is possible. I'm so used to people asking the > other question > that I assumed from the slightly mixed up references in the > question that this was what Sunil intended. OK, this is my interpretation of Sunil's question: He has text data encoded in a so-called "font encoding" (e.g. "Shusha"), and he needs to convert it to Unicode. The Linux Technology Development for Indian Languages (http://www.cse.iitk.ac.in/users/isciig/) has two ongoing projects for similar conversions: - iconverter (http://www.cse.iitk.ac.in/users/isciig/iconverter/main.html) - ISSCIIlib (http://www.cse.iitk.ac.in/users/isciig/isciilib/main.html) _ Marco
Re: converting devanagari to mangal unicode
At 03:09 PM 12/16/2002, Eric Muller wrote: In order to convert any Devanagari font to be rendered in the same way, May be Sunil is just asking for a conversion of data, presumably from ISCII to Unicode. Ah, yes, this is possible. I'm so used to people asking the other question that I assumed from the slightly mixed up references in the question that this was what Sunil intended. John Hudson Tiro Typeworks www.tiro.com Vancouver, BC [EMAIL PROTECTED] A book is a visitor whose visits may be rare, or frequent, or so continual that it haunts you like your shadow and becomes a part of you. - al-Jahiz, The Book of Animals
Re: converting devanagari to mangal unicode
In order to convert any Devanagari font to be rendered in the same way, May be Sunil is just asking for a conversion of data, presumably from ISCII to Unicode. Eric.
Re: converting devanagari to mangal unicode
> I am Gis/Website developer my query is > > I have a data in devanagri true type font i want to convert > this data into mangal unicode. > > I want to know whether any converter is available for > converting devanagari to mangal unicode. This is, excuse the pun, a bit of a mangled question. Mangal is Microsoft's Hindi UI font; it is an OpenType font that uses glyph substitution and positioning to correctly display the Devanagari script on top of a standard Unicode text string. In order to convert any Devanagari font to be rendered in the same way, two steps are necessary: 1. Make sure that the font has a Unicode cmap table and that the base forms of Devanagari characters are encoded in it in accordance with the Unicode standard. 2. Use Microsoft's free VOLT tool to add OpenType Layout tables for glyph substitution and positioning. There is no automated way to do such a conversion, although various sub-stages could be automated within particular tools (e.g. defining Unicode cmap mappings from glyph names in FontLab). The nature of the OpenType Layout lookups required will depend on the glyph repertoire of the individual font. See http://www.microsoft.com/typography/specs/default.htm for more information about making OpenType fonts for Devanagari and other scripts. John Hudson Tiro Typeworks www.tiro.com Vancouver, BC [EMAIL PROTECTED] A book is a visitor whose visits may be rare, or frequent, or so continual that it haunts you like your shadow and becomes a part of you. - al-Jahiz, The Book of Animals
