icuSources/extra/scrptrun/readme.html

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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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