thai stacking diacritics

[Carlos Villegas]

Hi,

We're trying to produce some thai output with FOP but FOP doesn't seem 
to be adjusting the diacritics.
In the following sample, there are two characters separated by a space, 
the first character has one diacritic, the second character has two 
diacritics. I'm not sure if it gets through the mail.
Anyway, the diacritics of the first character should be moved down to 
the same level as the first diacritics of the second character
I'm using ArialUnicodeMS font but I also tried with TH Sarabun and 
Tahoma. I tried several combinations of language and script but none 
worked, so I left it with no settings in the sample. I'm using FOP 1.1.
One interesting thing I noticed, some above the character diacritics 
can be stacked above other diacritics or not, whereas others can only 
occur as first one (bottom one) of the stack. That's my understanding, 
I'm not a thai speaker. In some fonts, the diacritics that can be in 
several above positions come in the font in the high position. So if 
they occur alone, they need to be adjusted down. That's the case in 
ArialUnicode. In other fonts like Tahoma, all the diacritics come in the 
font at the same height, the low position, so when stacking, one of 
the diacritics need to be move up.


Any idea if this can be made to work with current FOP.

?xml version=1.0 encoding=utf-8?
fo:root xmlns:fo=http://www.w3.org/1999/XSL/Format;
fo:layout-master-set
fo:simple-page-master master-name=A4
fo:region-body /
/fo:simple-page-master
/fo:layout-master-set

fo:page-sequence master-reference=A4
fo:flow flow-name=xsl-region-body
fo:block font-size=32pt font-family=ArialUnicode margin-top=1cm
ท้ นื้
/fo:block
/fo:flow
/fo:page-sequence
/fo:root


Carlos

Re: thai stacking diacritics

[Pascal Sancho]

Hi,

according to FOP complex script page [1]
Thai script is not fully supported in FOP 1.1.
I don't know if the complex script author (Glenn Adam) plans to add it
soon,  but feedback is always welcome, and userland wishes can help to
determine priority of improvments.

[1] http://xmlgraphics.apache.org/fop/1.1/complexscripts.html#supported_scripts

2014/1/14 Carlos Villegas c...@uniscope.jp:
 Hi,

 We're trying to produce some thai output with FOP but FOP doesn't seem to be
 adjusting the diacritics.
 In the following sample, there are two characters separated by a space, the
 first character has one diacritic, the second character has two diacritics.
 I'm not sure if it gets through the mail.
 Anyway, the diacritics of the first character should be moved down to the
 same level as the first diacritics of the second character
 I'm using ArialUnicodeMS font but I also tried with TH Sarabun and Tahoma. I
 tried several combinations of language and script but none worked, so I left
 it with no settings in the sample. I'm using FOP 1.1.
 One interesting thing I noticed, some above the character diacritics can
 be stacked above other diacritics or not, whereas others can only occur as
 first one (bottom one) of the stack. That's my understanding, I'm not a thai
 speaker. In some fonts, the diacritics that can be in several above
 positions come in the font in the high position. So if they occur alone,
 they need to be adjusted down. That's the case in ArialUnicode. In other
 fonts like Tahoma, all the diacritics come in the font at the same height,
 the low position, so when stacking, one of the diacritics need to be move
 up.

 Any idea if this can be made to work with current FOP.

 ?xml version=1.0 encoding=utf-8?
 fo:root xmlns:fo=http://www.w3.org/1999/XSL/Format;
 fo:layout-master-set
 fo:simple-page-master master-name=A4
 fo:region-body /
 /fo:simple-page-master
 /fo:layout-master-set

 fo:page-sequence master-reference=A4
 fo:flow flow-name=xsl-region-body
 fo:block font-size=32pt font-family=ArialUnicode margin-top=1cm
 ท้ นื้
 /fo:block
 /fo:flow
 /fo:page-sequence
 /fo:root


 Carlos



-- 
pascal