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<title>GNU libunistring: GNU libunistring</title>
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<h1 class="settitle">GNU libunistring</h1>
<a name="SEC_Contents"></a>
<h1>Table of Contents</h1>
<div class="contents">
<ul class="toc">
<li><a name="TOC1" href="libunistring_1.html#SEC1">1. Introduction</a>
<ul class="toc">
<li><a name="TOC2" href="libunistring_1.html#SEC2">1.1 Unicode</a></li>
<li><a name="TOC3" href="libunistring_1.html#SEC3">1.2 Unicode and Internationalization</a></li>
<li><a name="TOC4" href="libunistring_1.html#SEC4">1.3 Locale encodings</a></li>
<li><a name="TOC5" href="libunistring_1.html#SEC5">1.4 Choice of in-memory representation of strings</a></li>
<li><a name="TOC6" href="libunistring_1.html#SEC6">1.5 ‘<samp>char *</samp>’ strings</a></li>
<li><a name="TOC7" href="libunistring_1.html#SEC7">1.6 Unicode strings</a></li>
</ul></li>
<li><a name="TOC8" href="libunistring_2.html#SEC8">2. Conventions</a></li>
<li><a name="TOC9" href="libunistring_3.html#SEC9">3. Elementary types <code><unitypes.h></code></a></li>
<li><a name="TOC10" href="libunistring_4.html#SEC10">4. Elementary Unicode string functions <code><unistr.h></code></a>
<ul class="toc">
<li><a name="TOC11" href="libunistring_4.html#SEC11">4.1 Elementary string checks</a></li>
<li><a name="TOC12" href="libunistring_4.html#SEC12">4.2 Elementary string conversions</a></li>
<li><a name="TOC13" href="libunistring_4.html#SEC13">4.3 Elementary string functions</a>
<ul class="toc">
<li><a name="TOC14" href="libunistring_4.html#SEC14">4.3.1 Iterating over a Unicode string</a></li>
<li><a name="TOC15" href="libunistring_4.html#SEC15">4.3.2 Creating Unicode strings one character at a time</a></li>
<li><a name="TOC16" href="libunistring_4.html#SEC16">4.3.3 Copying Unicode strings</a></li>
<li><a name="TOC17" href="libunistring_4.html#SEC17">4.3.4 Comparing Unicode strings</a></li>
<li><a name="TOC18" href="libunistring_4.html#SEC18">4.3.5 Searching for a character in a Unicode string</a></li>
<li><a name="TOC19" href="libunistring_4.html#SEC19">4.3.6 Counting the characters in a Unicode string</a></li>
</ul></li>
<li><a name="TOC20" href="libunistring_4.html#SEC20">4.4 Elementary string functions with memory allocation</a></li>
<li><a name="TOC21" href="libunistring_4.html#SEC21">4.5 Elementary string functions on NUL terminated strings</a>
<ul class="toc">
<li><a name="TOC22" href="libunistring_4.html#SEC22">4.5.1 Iterating over a NUL terminated Unicode string</a></li>
<li><a name="TOC23" href="libunistring_4.html#SEC23">4.5.2 Length of a NUL terminated Unicode string</a></li>
<li><a name="TOC24" href="libunistring_4.html#SEC24">4.5.3 Copying a NUL terminated Unicode string</a></li>
<li><a name="TOC25" href="libunistring_4.html#SEC25">4.5.4 Comparing NUL terminated Unicode strings</a></li>
<li><a name="TOC26" href="libunistring_4.html#SEC26">4.5.5 Duplicating a NUL terminated Unicode string</a></li>
<li><a name="TOC27" href="libunistring_4.html#SEC27">4.5.6 Searching for a character in a NUL terminated Unicode string</a></li>
<li><a name="TOC28" href="libunistring_4.html#SEC28">4.5.7 Searching for a substring in a NUL terminated Unicode string</a></li>
<li><a name="TOC29" href="libunistring_4.html#SEC29">4.5.8 Tokenizing a NUL terminated Unicode string</a></li>
</ul>
</li>
</ul></li>
<li><a name="TOC30" href="libunistring_5.html#SEC30">5. Conversions between Unicode and encodings <code><uniconv.h></code></a></li>
<li><a name="TOC31" href="libunistring_6.html#SEC31">6. Output with Unicode strings <code><unistdio.h></code></a></li>
<li><a name="TOC32" href="libunistring_7.html#SEC32">7. Names of Unicode characters <code><uniname.h></code></a></li>
<li><a name="TOC33" href="libunistring_8.html#SEC33">8. Unicode character classification and properties <code><unictype.h></code></a>
<ul class="toc">
<li><a name="TOC34" href="libunistring_8.html#SEC34">8.1 General category</a>
<ul class="toc">
<li><a name="TOC35" href="libunistring_8.html#SEC35">8.1.1 The object oriented API for general category</a></li>
<li><a name="TOC36" href="libunistring_8.html#SEC36">8.1.2 The bit mask API for general category</a></li>
</ul></li>
<li><a name="TOC37" href="libunistring_8.html#SEC37">8.2 Canonical combining class</a></li>
<li><a name="TOC38" href="libunistring_8.html#SEC38">8.3 Bidi class</a></li>
<li><a name="TOC39" href="libunistring_8.html#SEC39">8.4 Decimal digit value</a></li>
<li><a name="TOC40" href="libunistring_8.html#SEC40">8.5 Digit value</a></li>
<li><a name="TOC41" href="libunistring_8.html#SEC41">8.6 Numeric value</a></li>
<li><a name="TOC42" href="libunistring_8.html#SEC42">8.7 Mirrored character</a></li>
<li><a name="TOC43" href="libunistring_8.html#SEC43">8.8 Arabic shaping</a>
<ul class="toc">
<li><a name="TOC44" href="libunistring_8.html#SEC44">8.8.1 Joining type of Arabic characters</a></li>
<li><a name="TOC45" href="libunistring_8.html#SEC45">8.8.2 Joining group of Arabic characters</a></li>
</ul></li>
<li><a name="TOC46" href="libunistring_8.html#SEC46">8.9 Properties</a>
<ul class="toc">
<li><a name="TOC47" href="libunistring_8.html#SEC47">8.9.1 Properties as objects – the object oriented API</a></li>
<li><a name="TOC48" href="libunistring_8.html#SEC48">8.9.2 Properties as functions – the functional API</a></li>
</ul></li>
<li><a name="TOC49" href="libunistring_8.html#SEC49">8.10 Other attributes</a>
<ul class="toc">
<li><a name="TOC50" href="libunistring_8.html#SEC50">8.10.1 Indic conjunct break</a></li>
</ul></li>
<li><a name="TOC51" href="libunistring_8.html#SEC51">8.11 Scripts</a></li>
<li><a name="TOC52" href="libunistring_8.html#SEC52">8.12 Blocks</a></li>
<li><a name="TOC53" href="libunistring_8.html#SEC53">8.13 ISO C and Java syntax</a></li>
<li><a name="TOC54" href="libunistring_8.html#SEC54">8.14 Classifications like in ISO C</a></li>
</ul></li>
<li><a name="TOC55" href="libunistring_9.html#SEC55">9. Display width <code><uniwidth.h></code></a></li>
<li><a name="TOC56" href="libunistring_10.html#SEC56">10. Grapheme cluster breaks in strings <code><unigbrk.h></code></a>
<ul class="toc">
<li><a name="TOC57" href="libunistring_10.html#SEC57">10.1 Grapheme cluster breaks in a string</a></li>
<li><a name="TOC58" href="libunistring_10.html#SEC58">10.2 Grapheme cluster break property</a></li>
</ul></li>
<li><a name="TOC59" href="libunistring_11.html#SEC59">11. Word breaks in strings <code><uniwbrk.h></code></a>
<ul class="toc">
<li><a name="TOC60" href="libunistring_11.html#SEC60">11.1 Word breaks in a string</a></li>
<li><a name="TOC61" href="libunistring_11.html#SEC61">11.2 Word break property</a></li>
</ul></li>
<li><a name="TOC62" href="libunistring_12.html#SEC62">12. Line breaking <code><unilbrk.h></code></a></li>
<li><a name="TOC63" href="libunistring_13.html#SEC63">13. Normalization forms (composition and decomposition) <code><uninorm.h></code></a>
<ul class="toc">
<li><a name="TOC64" href="libunistring_13.html#SEC64">13.1 Decomposition of Unicode characters</a></li>
<li><a name="TOC65" href="libunistring_13.html#SEC65">13.2 Composition of Unicode characters</a></li>
<li><a name="TOC66" href="libunistring_13.html#SEC66">13.3 Normalization of strings</a></li>
<li><a name="TOC67" href="libunistring_13.html#SEC67">13.4 Normalizing comparisons</a></li>
<li><a name="TOC68" href="libunistring_13.html#SEC68">13.5 Normalization of streams of Unicode characters</a></li>
</ul></li>
<li><a name="TOC69" href="libunistring_14.html#SEC69">14. Case mappings <code><unicase.h></code></a>
<ul class="toc">
<li><a name="TOC70" href="libunistring_14.html#SEC70">14.1 Case mappings of characters</a></li>
<li><a name="TOC71" href="libunistring_14.html#SEC71">14.2 Case mappings of strings</a></li>
<li><a name="TOC72" href="libunistring_14.html#SEC72">14.3 Case mappings of substrings</a></li>
<li><a name="TOC73" href="libunistring_14.html#SEC73">14.4 Case insensitive comparison</a></li>
<li><a name="TOC74" href="libunistring_14.html#SEC74">14.5 Case detection</a></li>
</ul></li>
<li><a name="TOC75" href="libunistring_15.html#SEC75">15. Regular expressions <code><uniregex.h></code></a></li>
<li><a name="TOC76" href="libunistring_16.html#SEC76">16. Using the library</a>
<ul class="toc">
<li><a name="TOC77" href="libunistring_16.html#SEC77">16.1 Installation</a></li>
<li><a name="TOC78" href="libunistring_16.html#SEC78">16.2 Compiler options</a></li>
<li><a name="TOC79" href="libunistring_16.html#SEC79">16.3 Include files</a></li>
<li><a name="TOC80" href="libunistring_16.html#SEC80">16.4 Autoconf macro</a></li>
<li><a name="TOC81" href="libunistring_16.html#SEC81">16.5 Reporting problems</a></li>
</ul></li>
<li><a name="TOC82" href="libunistring_17.html#SEC82">17. More advanced functionality</a></li>
<li><a name="TOC83" href="libunistring_18.html#SEC83">A. The <code>wchar_t</code> mess</a></li>
<li><a name="TOC84" href="libunistring_19.html#SEC84">B. The <code>char32_t</code> problem</a></li>
<li><a name="TOC85" href="libunistring_20.html#SEC85">C. Licenses</a>
<ul class="toc">
<li><a name="TOC86" href="libunistring_20.html#SEC86">C.1 GNU GENERAL PUBLIC LICENSE</a></li>
<li><a name="TOC87" href="libunistring_20.html#SEC91">C.2 GNU LESSER GENERAL PUBLIC LICENSE</a></li>
<li><a name="TOC88" href="libunistring_20.html#SEC92">C.3 GNU Free Documentation License</a></li>
</ul></li>
<li><a name="TOC89" href="libunistring_21.html#SEC94">Index</a></li>
</ul>
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