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  14 <title>GNU libunistring: 7. Names of Unicode characters &lt;uniname.h&gt;</title>
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  59 <a name="uniname_002eh"></a>
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  61 <h1 class="chapter"> <a href="libunistring.html#TOC19">7. Names of Unicode characters <code>&lt;uniname.h&gt;</code></a> </h1>
  62
  63 <p>This include file implements the association between a Unicode character and
  64 its name.
  65 </p>
  66 <p>The name of a Unicode character allows to distinguish it from other, similar
  67 looking characters.  For example, the character &lsquo;<samp>x</samp>&rsquo; has the name
  68 <code>&quot;LATIN SMALL LETTER X&quot;</code> and is therefore different from the character
  69 named <code>&quot;MULTIPLICATION SIGN&quot;</code>.
  70 </p>
  71 <dl>
  72 <dt><u>Macro:</u> unsigned int <b>UNINAME_MAX</b>
  73 <a name="IDX237"></a>
  74 </dt>
  75 <dd><p>This macro expands to a constant that is the required size of buffer for a
  76 Unicode character name.
  77 </p></dd></dl>
  78
  79 <dl>
  80 <dt><u>Function:</u> char * <b>unicode_character_name</b><i> (ucs4_t <var>uc</var>, char *<var>buf</var>)</i>
  81 <a name="IDX238"></a>
  82 </dt>
  83 <dd><p>Looks up the name of a Unicode character, in uppercase ASCII.
  84 <var>buf</var> must point to a buffer, at least <code>UNINAME_MAX</code> bytes in size.
  85 Returns the filled <var>buf</var>, or NULL if the character does not have a name.
  86 </p></dd></dl>
  87
  88 <dl>
  89 <dt><u>Function:</u> ucs4_t <b>unicode_name_character</b><i> (const char *<var>name</var>)</i>
  90 <a name="IDX239"></a>
  91 </dt>
  92 <dd><p>Looks up the Unicode character with a given name, in upper- or lowercase
  93 ASCII.  Returns the character if found, or <code>UNINAME_INVALID</code> if not found.
  94 </p></dd></dl>
  95
  96 <dl>
  97 <dt><u>Macro:</u> ucs4_t <b>UNINAME_INVALID</b>
  98 <a name="IDX240"></a>
  99 </dt>
 100 <dd><p>This macro expands to a constant that is a special return value of the
 101 <code>unicode_name_character</code> function.
 102 </p></dd></dl>
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