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Posted to fop-users@xmlgraphics.apache.org by Simon Pepping <sp...@leverkruid.eu> on 2010/08/19 22:35:26 UTC
Complex Script Support
We are happy to let you know that Complex Script Support for FOP is
under development. Glenn Adams is developing this functionality on
behalf of Basis Technologies.
To make this development efficient and successful, we need your
contribution as well. Does your native language use complex scripts
and perhaps right-to-left writing mode (Arabic, Hebrew, Indic
scripts)? Then install this version of FOP and test it with some of
your XML or FO files. Report your findings on this mailing list.
We will announce updates of this work on this mailing list.
You can download the binary distribution or the fop jar file from
http://people.apache.org/~spepping/.
You can check out the source code from FOP's subversion repository,
http://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ComplexScripts.
You can follow the work at FOP's Bugzilla, bug nr. 49687,
https://issues.apache.org/bugzilla/show_bug.cgi?id=49687.
Simon
--
Simon Pepping
home page: http://www.leverkruid.eu
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Re: Complex Script Support
Posted by Simon Pepping <sp...@leverkruid.eu>.
I am pleased to inform you that Glenn Adams updated his work with a
new patch. This patch includes the following:
* bug fixes
* new layout engine tests for right-to-left writing mode
* new generic indic script processing support
* new devanagari script processing support
See milestone "Patch 4" at http://skynav.trac.cvsdude.com/fop/report/6 for
further details.
The update has been imported into FOP's code in the
Temp_ComplexScripts branch. The new code is available at the URLs
cited below.
You can download the binary distribution or the fop jar file from
http://people.apache.org/~spepping/.
You can check out the source code from FOP's subversion repository,
http://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ComplexScripts.
You can follow the work at FOP's Bugzilla, bug nr. 49687,
https://issues.apache.org/bugzilla/show_bug.cgi?id=49687.
Simon Pepping
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Re: Complex Script Support
Posted by Simon Pepping <sp...@leverkruid.eu>.
If you went to the web site http://people.apache.org/~spepping/ very
rapidly after I sent this email, you may have read obsolete 'Notes
about the current state of the work'. Many limitations that were
listed there have now been removed, since those limitations have been
addressed in the course of development over the past year.
Best, Simon Pepping
On Tue, Oct 18, 2011 at 12:51:20PM +0200, Simon Pepping wrote:
> I am pleased to let you know that Glenn Adams updated his work with a
> new patch. This patch includes the following:
>
> * bug fixes
> * new layout engine tests for right-to-left writing mode
> * new test utility for using TTX files in testing advanced typographic tables
> * new test cases for GDEF/GSUB/GPOS advanced typographic tables
> * new test cases for ~85000 arabic word forms against four fonts
> * new implementation of number formatter for number to string conversion, which adds support for arabic, hebrew, thai, and kana scripts
>
> See milestone "Patch 5" at http://skynav.trac.cvsdude.com/fop/report/6 for
> further details.
>
> The update has been imported into FOP's code in the
> Temp_ComplexScripts branch. The new code is available at the URLs
> cited below.
>
> With this patch, Complex Script Support for FOP now supports
> * Arabic, Hebrew, and Devanagari Scripts
> * PDF output format
>
> Support for
> * additional scripts
> * additional output formats
> remains to be done.
>
> The current state of complex scripts support has been proposed for
> merger into the main development trunk, subject to appropriate
> evaluation and verification by the FOP community.
>
> You can download the binary distribution or the fop jar file from
> http://people.apache.org/~spepping/.
>
> You can check out the source code from FOP's subversion repository,
> http://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ComplexScripts.
>
> You can follow the work at FOP's Bugzilla, bug nr. 49687,
> https://issues.apache.org/bugzilla/show_bug.cgi?id=49687.
>
> Simon Pepping
>
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> To unsubscribe, e-mail: fop-users-unsubscribe@xmlgraphics.apache.org
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>
>
> ---------------------------------------------------------------------
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>
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Re: Complex Script Support
Posted by Simon Pepping <sp...@leverkruid.eu>.
I am pleased to let you know that Glenn Adams updated his work with a
new patch. This patch includes the following:
* bug fixes
* new layout engine tests for right-to-left writing mode
* new test utility for using TTX files in testing advanced typographic tables
* new test cases for GDEF/GSUB/GPOS advanced typographic tables
* new test cases for ~85000 arabic word forms against four fonts
* new implementation of number formatter for number to string conversion, which adds support for arabic, hebrew, thai, and kana scripts
See milestone "Patch 5" at http://skynav.trac.cvsdude.com/fop/report/6 for
further details.
The update has been imported into FOP's code in the
Temp_ComplexScripts branch. The new code is available at the URLs
cited below.
With this patch, Complex Script Support for FOP now supports
* Arabic, Hebrew, and Devanagari Scripts
* PDF output format
Support for
* additional scripts
* additional output formats
remains to be done.
The current state of complex scripts support has been proposed for
merger into the main development trunk, subject to appropriate
evaluation and verification by the FOP community.
You can download the binary distribution or the fop jar file from
http://people.apache.org/~spepping/.
You can check out the source code from FOP's subversion repository,
http://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ComplexScripts.
You can follow the work at FOP's Bugzilla, bug nr. 49687,
https://issues.apache.org/bugzilla/show_bug.cgi?id=49687.
Simon Pepping
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Re: Complex Script Support
Posted by Simon Pepping <sp...@leverkruid.eu>.
I am pleased to inform you that Glenn Adams updated his work with a
new patch. This patch adds bug fixes and tests.
The update has been imported into FOP's code in the
Temp_ComplexScripts branch. The new code is available at the URLs
cited below.
Simon
On Thu, Sep 30, 2010 at 01:22:44PM +0200, Simon Pepping wrote:
> I am pleased to inform you that Glenn Adams updated his work with an
> extensive patch. This patch completes the first round of functional
> support for OpenType GDEF/GSUB/GPOS advanced typographic tables as
> employed by selected Arabic fonts (see supported fonts at
> https://skynav.trac.cvsdude.com/fop/wiki/SupportedFonts).
>
> The update has been imported into FOP's code in the
> Temp_ComplexScripts branch. The new code is available at the URLs
> cited below.
>
> Simon
>
> On Thu, Aug 19, 2010 at 10:35:26PM +0200, Simon Pepping wrote:
> > We are happy to let you know that Complex Script Support for FOP is
> > under development. Glenn Adams is developing this functionality on
> > behalf of Basis Technologies.
> >
> > To make this development efficient and successful, we need your
> > contribution as well. Does your native language use complex scripts
> > and perhaps right-to-left writing mode (Arabic, Hebrew, Indic
> > scripts)? Then install this version of FOP and test it with some of
> > your XML or FO files. Report your findings on this mailing list.
> >
> > We will announce updates of this work on this mailing list.
> >
> > You can download the binary distribution or the fop jar file from
> > http://people.apache.org/~spepping/.
> >
> > You can check out the source code from FOP's subversion repository,
> > http://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ComplexScripts.
> >
> > You can follow the work at FOP's Bugzilla, bug nr. 49687,
> > https://issues.apache.org/bugzilla/show_bug.cgi?id=49687.
>
> --
> Simon Pepping
> home page: http://www.leverkruid.eu
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: fop-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: fop-users-help@xmlgraphics.apache.org
>
---------------------------------------------------------------------
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Re: Complex Script Support
Posted by Simon Pepping <sp...@leverkruid.eu>.
I am pleased to inform you that Glenn Adams updated his work with an
extensive patch. This patch completes the first round of functional
support for OpenType GDEF/GSUB/GPOS advanced typographic tables as
employed by selected Arabic fonts (see supported fonts at
https://skynav.trac.cvsdude.com/fop/wiki/SupportedFonts).
The update has been imported into FOP's code in the
Temp_ComplexScripts branch. The new code is available at the URLs
cited below.
Simon
On Thu, Aug 19, 2010 at 10:35:26PM +0200, Simon Pepping wrote:
> We are happy to let you know that Complex Script Support for FOP is
> under development. Glenn Adams is developing this functionality on
> behalf of Basis Technologies.
>
> To make this development efficient and successful, we need your
> contribution as well. Does your native language use complex scripts
> and perhaps right-to-left writing mode (Arabic, Hebrew, Indic
> scripts)? Then install this version of FOP and test it with some of
> your XML or FO files. Report your findings on this mailing list.
>
> We will announce updates of this work on this mailing list.
>
> You can download the binary distribution or the fop jar file from
> http://people.apache.org/~spepping/.
>
> You can check out the source code from FOP's subversion repository,
> http://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ComplexScripts.
>
> You can follow the work at FOP's Bugzilla, bug nr. 49687,
> https://issues.apache.org/bugzilla/show_bug.cgi?id=49687.
--
Simon Pepping
home page: http://www.leverkruid.eu
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RE: Complex Script Support
Posted by Jonathan Levinson <Jo...@intersystems.com>.
Congratulations!
Are Windows true type fonts supported?
More broadly, is font support limited or can we use the fonts that come with the OS?
We have a Dubai group, I'd like to have try out your complex script support, but I know which fonts are supported could be an issue. Looking at their test script I just see the font-family specified as Arial.
They are currently using FOP with patch: https://issues.apache.org/bugzilla/attachment.cgi?id=24934&action=edit, which uses ICU4J to do Arabic rendering.
Best Regards,
Jonathan Levinson
-----Original Message-----
From: Simon Pepping [mailto:spepping@leverkruid.eu]
Sent: Thursday, August 19, 2010 4:35 PM
To: fop-users@xmlgraphics.apache.org
Subject: Complex Script Support
We are happy to let you know that Complex Script Support for FOP is
under development. Glenn Adams is developing this functionality on
behalf of Basis Technologies.
To make this development efficient and successful, we need your
contribution as well. Does your native language use complex scripts
and perhaps right-to-left writing mode (Arabic, Hebrew, Indic
scripts)? Then install this version of FOP and test it with some of
your XML or FO files. Report your findings on this mailing list.
We will announce updates of this work on this mailing list.
You can download the binary distribution or the fop jar file from
http://people.apache.org/~spepping/.
You can check out the source code from FOP's subversion repository,
http://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ComplexScripts.
You can follow the work at FOP's Bugzilla, bug nr. 49687,
https://issues.apache.org/bugzilla/show_bug.cgi?id=49687.
Simon
--
Simon Pepping
home page: http://www.leverkruid.eu
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Re: Complex Script Support
Posted by Glenn Adams <gl...@skynav.com>.
Thanks to Simon for committing this patch. Let me provide some additional
information that will help evaluators or reviewers:
- this work is being developed in the Temp_ComplexScripts branch of the
FOP SVN repository, and, when appropriate, will be merged into the main
development trunk; however, that will not occur until the new features in
this branch are completed, new test suites are created and verified, and
sufficient time has passed to ensure appropriate evaluation and verification
by the FOP community;
- the present state of this work is PRE-ALPHA; as such, it is not yet
feature complete; therefore, anyone attempting to use this work should
expect to find incomplete or incorrect results as well as programming errors
resulting in abnormal termination, etc; so, caveat emptor please!
- some preliminary documentation of this work is available at
https://skynav.trac.cvsdude.com/fop/wiki; as work progresses, this
documentation will be better organized and transferred to the FOP Wiki and
Documentation pages;
- during the development of this branch, known issues on this work are
being tracked at https://skynav.trac.cvsdude.com/fop/report; after this
branch is merged into the development trunk, new bugs and issues will be
tracked in the Apache bugzilla database;
- initial support is focused on Arabic script support, which entails the
support of complex character to glyph mapping (sometimes referred to as
'glyph shape selection' or 'glyph substitution') and bidirectional
processing;
- currently supported fonts (that I have tested to some extent, but not
completely) are documented at
https://skynav.trac.cvsdude.com/fop/wiki/SupportedFonts; this list will
be expanded over time;
- no use is made of external libraries or platform specific libraries;
e.g., ICU4J is not used; the platform fonts are used directly to provide
advanced typographic table support (about which see
https://skynav.trac.cvsdude.com/fop/wiki/ComplexScriptFeatures);
- no testing on output renderers other than PDF and AT (XML area tree)
has taken place yet; so please restrict your usage to PDF in the near term;
Now, here are some additional useful points to make about current
limitations or known issues that apply. Please read the Active Issues report
in the above referenced TRAC site for further details:
- non-spacing marks are not yet supported, and their use in content will
cause noticeable problems; this is the current top priority issue, since
support for a number of such NSMs is mandatory even in non-vowelized
(non-pointed) Arabic;
- use of text-align='justify' does not produce correctly justified lines
when Arabic is present;
- correct semantic support for "writing mode relative corresponding
properties" is not yet present, and, as a result text-align='right' is not
implied for blocks that have a default bidi level of 1 (right to left), so
you will need to explicitly add text-align='right' to achieve correct
alignment;
- support for inline FOs in bidi contexts is presently limited to
fo:inline, fo:bidi-override, and fo:character; support for the remaining
inline FOs will be added in an upcoming update to this branch;
- full testing of bidi level assignment and reordering has not yet
occurred, so some errors should be expected; the same applies for arabic
shaping rules (i.e., presentation glyph selection);
Keeping the above in mind, please do try out this preliminary work and
report to me or to this list any issues that you find. When you do find an
issue, try to isolate the input FO file to the absolute minimum amount of
content that causes the problem. If I have to look through a long input file
(and output PDF) for a small problem I am more likely to put that on the
bottom of my queue, and not on the top. In other words, if you are going to
take the trouble to report something, then please help me out by reducing
the problem to its bare minimum form. Furthermore, when posting issues,
please provide the output PDF file as well as.
Regards,
Glenn
On Fri, Aug 20, 2010 at 4:35 AM, Simon Pepping <sp...@leverkruid.eu>wrote:
> We are happy to let you know that Complex Script Support for FOP is
> under development. Glenn Adams is developing this functionality on
> behalf of Basis Technologies.
>
> To make this development efficient and successful, we need your
> contribution as well. Does your native language use complex scripts
> and perhaps right-to-left writing mode (Arabic, Hebrew, Indic
> scripts)? Then install this version of FOP and test it with some of
> your XML or FO files. Report your findings on this mailing list.
>
> We will announce updates of this work on this mailing list.
>
> You can download the binary distribution or the fop jar file from
> http://people.apache.org/~spepping/.
>
> You can check out the source code from FOP's subversion repository,
>
> http://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ComplexScripts
> .
>
> You can follow the work at FOP's Bugzilla, bug nr. 49687,
> https://issues.apache.org/bugzilla/show_bug.cgi?id=49687.
>
> Simon
>
> --
> Simon Pepping
> home page: http://www.leverkruid.eu
>
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> To unsubscribe, e-mail: fop-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: fop-users-help@xmlgraphics.apache.org
>
>