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<title>Readme file for letest and gendata</title>
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<h2> What are letest and gendata?</h2>
letest is a program you can use to verify that you have built and installed
the ICU LayoutEngine correctly. The test is not comprehensive, it just verifies
that the results of laying out some Devanagari, Arabic and Thai text are
as expected. Once this test has passed, you can use the ICU LayoutEngine in
your application knowing that it has been correctly installed and that the
basic functionality is in place.
<p>gendata is a program that is used by the ICU team to build the source file
testdata.cpp, which contains the expected results of running letest. Unless
you have changed your copy of the LayoutEngine and want to validate the changes
on other platforms, there's no reason for you to run this program. </p>
<p>(The ICU team first runs a Windows application which uses the ICU LayoutEngine
to display the text that letest uses. Once it has been verified that the text
is displayed correctly, gendata is run to produce testdata.cpp, and then
letest is run on Windows to verify that letest still works with the new data.)
<br>
&nbsp; </p>
<h2> How do I build letest?</h2>
First, you need to build ICU, including the LayoutEngine.
<p>On Windows, the layout project should be listed as a dependency of all,
so layout will build when you build all. If it doesn't for some reason, just
select the layout project in the project toolbar and build it. </p>
<p>On UNIX systems, you need to add the "--enable-layout=yes" option when
you invoke the runConfigureICU script. When you've done that, layout should
build when you do "make all install" </p>
<p>To build letest on Windows, just open the letest project in &lt;icu&gt;\source\test\letest
and build it. On UNIX systems, connect to &lt;top-build-dir&gt;/test/letest
and do "make all" <br>
&nbsp; </p>
<h2> How do I run letest?</h2>
Before you can run letest, you'll need to get the fonts it uses. For legal
reasons, we can't include them with ICU, but you can get them for free from
the web. To do this, you'll need access to a computer running Windows. Here's
how to get the fonts:
<p>Download the 1.3 version of the JDK from the <a href="http://www7b.boulder.ibm.com/wsdd/wspvtindex.html">
IBM WebSphere preview technologies</a> page. From this page, follow the "Download"
link on the right had side. You'll need to register with them if you haven't
downloaded before. Download and install the "Runtime Environment Package."
You'll need three fonts from this package. If you've let the installer use
it's defaults, the fonts will be in C:\Program Files\IBM\Java13\jre\lib\fonts.
The files you want are "LucidaSansRegular.ttf" and "Thonburi.ttf" Copy these
to the directory from which you'll run letest. </p>
<p>Next is the Hindi font. Go to the&nbsp; NCST site and download&nbsp;<a href="http://rohini.ncst.ernet.in/indix/download/font/raghu.ttf">
raghu.ttf</a>. Be sure to look at the&nbsp;<a href="http://rohini.ncst.ernet.in/indix/download/font/README">
README</a> file before you download the font. You can download raghu.ttf
into the directory from which you'll run letest.<br>
</p>
<p>There's still one more font to get. Go to the Microsoft <a href="http://www.microsoft.com/typography/fontpack/default.htm">
TrueType core fonts for the Web</a> page and download the "Times New Roman"
font. This will download an installer program, called "Times32.exe" which
will install the Times New Roman fonts in your fonts folder. (If you've already
got these fonts in you fonts folder, you may want to move them to another
folder before you install these fonts.) </p>
<p>NOTE: this installer will display an End User License Agreement (EULA)
which you must accept before proceeding. Be sure that you read and understand
this agreement before you install the font. </p>
<p>After you run the installer program, it will add the Times Roman fonts
to your fonts folder. Open the fonts folder and copy the "Times New Roman"
font (the file name will be "Times.TTF") to the directory from which you'll
run letest. </p>
<p>That's it! Now all you have to do is run letest (CTRL+F5 in Visual C++,
or "./letest" in UNIX) If&nbsp; everything's OK you should see something like
this: </p>
<blockquote><tt>Test 0, font = raghu.ttf... passed.</tt> <br>
<tt>Test 1, font = Times.TTF... passed.</tt> <br>
<tt>Test 2, font = LucidaSansRegular.ttf... passed.</tt> <br>
<tt>Test 3, font = Thonburi.ttf... passed.</tt></blockquote>
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