From: chuck clemens (clemens900@hotmail.com)
Date: Thu Sep 26 2002 - 15:54:55 EDT
I was reading the thread "glyph selection for Unicode in browsers" and
wanted to pass on my reply to Mark's email. Since my query is related to
the topic of glyph selection, I wanted to know if anyone in this mail group
can tell me if doing a text can based on block ranges is more appropriate
then the scan based on script ranges. It appears as I mentioned in email to
Mark that Unicode fonts use block ranges. Can someone verify this?
chuck
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Thanks. My goal is to determine if a unicode font can print all the
characters in a text file. I'm unsure if I should check characters based
on range as specified in Blocks-3.2.0.txt or check characters based on
script as specified in Scripts-3.2.0.txt. If I check the properties of a
unicode font such as times.ttf it returns the supported unicode ranges
such as 'Basic Latin', 'Latin 1 Supplement', 'Latin Extended A', 'Greek',
'Cyrillic', etc. Based on this it appears that unicode fonts support the
ranges as specified in blocks.txt. If this is true, it is a much easier
task to scan the text to find out what ranges are covered and see if that
matches the fonts supported ranges. Would you say that if my goal is to
verify all UTF-16 text can be printed then I should do range checks rather
then script checks?
Chuck
From: "Mark Davis" <mark@macchiato.com>
To: "chuck clemens" <clemens900@hotmail.com>,<unicode@unicode.org>
Subject: Re: script detection program Date: Thu, 26 Sep 2002 05:28:49 -0700
ICU doesn't have a tool specifically to do that, but it does have API
support for that (and character conversion), so it'd be very simple
for you to write such a tool -- just opening the file (with whatever
conversion is required) and scanning the contents. See
http://oss.software.ibm.com/icu.
Mark
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