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      8    <title>ScriptRun readme</title>
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     11 
     12 <h2>
     13 What is scrptrun and srtest?</h2>
     14 The ICU LayoutEngine must be called with text in a single script. scrptrun.h
     15 and scrptrun.cpp implement the ScriptRun class, which can be used to find
     16 runs of text that is in a single script. It uses a basic iteration interface.
     17 <p>srtest is a little program that tests ScriptRun. You can use it as an
     18 example of how to use ScriptRun. Here's what the output should look like:
     19 <blockquote><font face="Courier New,Courier"><font size=-1>Script 'DEVANAGARI'
     20 from 0 to 9.</font></font>
     21 <br><font face="Courier New,Courier"><font size=-1>Script 'ARABIC' from
     22 9 to 17.</font></font>
     23 <br><font face="Courier New,Courier"><font size=-1>Script 'CYRILLIC' from
     24 17 to 25.</font></font>
     25 <br><font face="Courier New,Courier"><font size=-1>Script 'LATIN' from
     26 25 to 33.</font></font>
     27 <br><font face="Courier New,Courier"><font size=-1>Script 'HAN' from 33
     28 to 35.</font></font>
     29 <br><font face="Courier New,Courier"><font size=-1>Script 'HIRAGANA' from
     30 35 to 41.</font></font>
     31 <br><font face="Courier New,Courier"><font size=-1>Script 'KATAKANA' from
     32 41 to 45.</font></font>
     33 <br><font face="Courier New,Courier"><font size=-1>Script 'DESERET' from
     34 45 to 53.</font></font></blockquote>
     35 
     36 <h2>
     37 How do I build scrptrun and srtest?</h2>
     38 To use the ScriptRun class in a Windows application, just include scrptrun.h
     39 and scrptrun.cpp right out of the &lt;icu>\source\extra\scrptrun directory
     40 into your project. You'll also need to add the &lt;icu>\source]extra\scrptrun
     41 directory to the "Additional include directories" section of the "Preprocessor"
     42 category on the "C/C++" tab in the project settings.
     43 <p>On UNIX systems the simplest thing to do is to just copy scrptrun.h
     44 and scrptrun.cpp into your source directory. If you want to use them from
     45 &lt;icu>/source/extra/scrpturn, it's a bit trickier: the default dependency
     46 rules don't work on source files in a different directory. You need to
     47 add separate dependency rules for scrptrun.o and scrptrun.d. See &lt;icu>/source/samples/layout/Makefile.in
     48 for an example of how to do this. You'll also have to add -I$(top_srcdir)/extra/scrptrun
     49 to your compiler flags so that the compiler can find scrptrun.h. If your
     50 application has to build on multiple UNIX platforms, it might be difficult
     51 to wirte dependency rules that will work correctly on all platforms. In
     52 that case, you're probably better off copying the scrpturn files to your
     53 source directory.
     54 <p>Building srtest is easy, on Windows build the srtest workspace in &lt;icu>\source\extra\scrptrun.
     55 On UNIX, connect to &lt;top-build-dir>/extra/scrptrun and do "make all"
     56 <h2>
     57 Notes</h2>
     58 
     59 <ul>
     60 <li>
     61 ScriptRun is based on <a href="http://www.unicode.org/unicode/reports/tr24/">Unicode
     62 Technical Report #24</a> but the implementation is not complete. In particular
     63 the support for paired punctuation is only a prototype. A complete implementation
     64 will be added to ICU in the future.</li>
     65 </ul>
     66 
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