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Coptic Unicode Fonts & other CS fonts

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simos:

The OpenDocument file (OpenOffice.org 2.0+) that was used to generate the screenshot is at
http://www.simos.info/files/CopticSample-CombiningDiacritics.odt

I know how to type these letters in Linux (Ubuntu, Fedora, etc) when using the GNOME graphical environment.
Other operating systems should have a similar procedure.

In GTK+ applications on Linux you can type Coptic using the codepoint.
For example, for lowercase alfa,
1. keep pressed Ctrl-Shift
2. type 2C81
3. release the Ctrl-Shift keys.
Of course, the font needs to support Coptic so that the character is shown. In Gedit or OpenOffice.org you need to select a suitable font. I think in newer versions of Linux a capable Coptic font will be autoselected. In OpenOffice.org you need to hit the spacebar to get the character shown, as a step 3.

To add combining marks, follow the list shown at
http://www.travelphrases.info/gallery/Test_Coptic.html
which shows the acceptable combining marks for Coptic and their Unicode codepoint value.

For the grave combining mark,
1. keep pressed Ctrl-Shift
2. type 300

For the combining mark to work, you must place the cursor just ahead of the coptic letter (alfa). The combining mark will automatically attach to the letter that is position on its left. You can do the same trick even with english, as a way to add combining marks.

It is evident that the fonts need special editing so that the combining marks are centered well on the letters.

I do not know which Coptic letters are permitted to have combining marks. In Greek, letters like Beta do not get a combining mark. What's the situation in Coptic?

Admin:
OK I tried this in Open Office under LINUX (KDE)
the SHIFT + CTRL didn't work so I used the Inserted -> Special character from Open Office menu
the inserted characters was some coptic letters and the Character with the unicode "0300"
and here is the result

simos:
I just tried and wrote the same text.
I verify that it looks exactly the same on my system.

Admin:
OK from the begining I was saying that signs is a big problem
Do you have any idea about how to fix the issue ? zzzz
i mean the jenkem is supposed to be ON the letter not INSIDE or above the previous letter

simos:
I do not know the exact details to fix this issue.
I know it relates to using fontforge and modifying the font,
both the combining marks but most importandly the Coptic glyphs.

Perhaps Moheb will be more suitable to answer here. He might also need help on this.
For example, an easy task is to create an OpenOffice.org file that contains
all combinations of letters and combining marks, so that when an updated font is created,
you can easily load the file, print it and view the improvements in detail.

In the Greek language, only vowels can accept combining marks.
I see that in Coptic almost all letters accept combining marks?
Is there a list of the Coptic letters that can accept combining marks?

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