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<title>The m17n Library: M-text</title>
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<div class="contents">
<h1>M-text<br/>
<small>
[<a class="el" href="group__m17nCore.html">CORE API</a>]</small>
</h1>
<p>M-text objects and API for them.  
<a href="#_details">More...</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Typedefs</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Type of <em>M-texts</em>.  <a href="#gae8bba45315c15c8f79ec4a73ebc52aec"></a><br/></td></tr>
<tr><td colspan="2"><h2>Enumerations</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga4148a7a6fd502d4fb4a786d9fdb7da59">MTextFormat</a> { <br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59ad61701eea01de99f3bf3bd57d6b24d38">MTEXT_FORMAT_US_ASCII</a>, 
<br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a008391579e58d7110f28d63736178d90">MTEXT_FORMAT_UTF_8</a>, 
<br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a42252ef5d95a78cc719768d0fa3ce209">MTEXT_FORMAT_UTF_16LE</a>, 
<br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59aab2d4798020fd8edb35089be48170cee">MTEXT_FORMAT_UTF_16BE</a>, 
<br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a79785b67787c6ca1e9c415a2d76df1be">MTEXT_FORMAT_UTF_32LE</a>, 
<br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a07b67ef89723794acb1ba743a30a79ef">MTEXT_FORMAT_UTF_32BE</a>, 
<br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a3edc8bb21d072d3ff41447f42ac13ad2">MTEXT_FORMAT_MAX</a>
<br/>
 }</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight"><p>Enumeration for specifying the format of an M-text. </p>
 <a href="group__m17nMtext.html#ga4148a7a6fd502d4fb4a786d9fdb7da59">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum &nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga23c3bd3e53aa9ba5aec709a939865022">MTextLineBreakOption</a> { <br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga23c3bd3e53aa9ba5aec709a939865022ae88167377a944d4c84a1a89729aef111">MTEXT_LBO_SP_CM</a> =  1, 
<br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga23c3bd3e53aa9ba5aec709a939865022a7866ca91fdc6b955b14637d911e9b3d5">MTEXT_LBO_KOREAN_SP</a> =  2, 
<br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga23c3bd3e53aa9ba5aec709a939865022a2a5299f48bbbd8b87766cbf889495fb9">MTEXT_LBO_AI_AS_ID</a> =  4, 
<br/>
&nbsp;&nbsp;<a class="el" href="group__m17nMtext.html#gga23c3bd3e53aa9ba5aec709a939865022a857141ca578c6e94548264c01a8e3d42">MTEXT_LBO_MAX</a>
<br/>
 }</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight"><p>Enumeration for specifying a set of line breaking option. </p>
 <a href="group__m17nMtext.html#ga23c3bd3e53aa9ba5aec709a939865022">More...</a><br/></td></tr>
<tr><td colspan="2"><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga0d1fa6a2b4c0630b9524d900cd4aab70">mtext_line_break</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int pos, int option, int *after)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Find a linebreak postion of an M-text.  <a href="#ga0d1fa6a2b4c0630b9524d900cd4aab70"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga1a82c0d7283e62698119ac9c46b3fa8a">mtext</a> ()</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Allocate a new M-text.  <a href="#ga1a82c0d7283e62698119ac9c46b3fa8a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga2114a8366b5aaee6b5d344f69ea5dd78">mtext_from_data</a> (const void *data, int nitems, enum <a class="el" href="group__m17nMtext.html#ga4148a7a6fd502d4fb4a786d9fdb7da59">MTextFormat</a> format)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Allocate a new M-text with specified data.  <a href="#ga2114a8366b5aaee6b5d344f69ea5dd78"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga58dfc38b90385749199caa5e6bc10ec4">mtext_data</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, enum <a class="el" href="group__m17nMtext.html#ga4148a7a6fd502d4fb4a786d9fdb7da59">MTextFormat</a> *fmt, int *nunits, int *pos_idx, int *unit_idx)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Get information about the text data in M-text.  <a href="#ga58dfc38b90385749199caa5e6bc10ec4"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga28ea3879a9dae45127bd62499645c7c3">mtext_len</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Number of characters in M-text.  <a href="#ga28ea3879a9dae45127bd62499645c7c3"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga29fd21f8bd3b80a09628ea2dc62db3e5">mtext_ref_char</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int pos)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Return the character at the specified position in an M-text.  <a href="#ga29fd21f8bd3b80a09628ea2dc62db3e5"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga1378506cd336f1d2029672991ecf8973">mtext_set_char</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int pos, int c)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Store a character into an M-text.  <a href="#ga1378506cd336f1d2029672991ecf8973"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga21036a5bc066530f7cf9196fbb568efd">mtext_cat_char</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int c)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Append a character to an M-text.  <a href="#ga21036a5bc066530f7cf9196fbb568efd"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gacd7bdc22fa2aacc6cfb3630697e6d3f9">mtext_dup</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Create a copy of an M-text.  <a href="#gacd7bdc22fa2aacc6cfb3630697e6d3f9"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gaf0a0af628d6e4d69fbacea149885a72d">mtext_cat</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Append an M-text to another.  <a href="#gaf0a0af628d6e4d69fbacea149885a72d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gafd2fa9c1080067533e584e92ebe15f5c">mtext_ncat</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2, int n)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Append a part of an M-text to another.  <a href="#gafd2fa9c1080067533e584e92ebe15f5c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gaa9f56201d62d4f39e8a64b4460450ba4">mtext_cpy</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Copy an M-text to another.  <a href="#gaa9f56201d62d4f39e8a64b4460450ba4"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga83df72acd6f78cec009b642e0afdcfee">mtext_ncpy</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2, int n)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Copy the first some characters in an M-text to another.  <a href="#ga83df72acd6f78cec009b642e0afdcfee"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga2349c5cda40d1880c0c560be4c69c911">mtext_duplicate</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int from, int to)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Create a new M-text from a part of an existing M-text.  <a href="#ga2349c5cda40d1880c0c560be4c69c911"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga45dcea52c2d59bcd129af5e8323593cf">mtext_copy</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, int pos, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2, int from, int to)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Copy characters in the specified range into an M-text.  <a href="#ga45dcea52c2d59bcd129af5e8323593cf"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga592d9cfe5c76ee384568c053ad7ea8b5">mtext_del</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int from, int to)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Delete characters in the specified range destructively.  <a href="#ga592d9cfe5c76ee384568c053ad7ea8b5"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga38ed0e4b19ec03ad6d522ab433acde4e">mtext_ins</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, int pos, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Insert an M-text into another M-text.  <a href="#ga38ed0e4b19ec03ad6d522ab433acde4e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga39d820131ec741f5822b206f44dce2df">mtext_insert</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, int pos, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2, int from, int to)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Insert sub-text of an M-text into another M-text.  <a href="#ga39d820131ec741f5822b206f44dce2df"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga683d68d84b907bcac211cbdea41c1e70">mtext_ins_char</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int pos, int c, int n)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Insert a character into an M-text.  <a href="#ga683d68d84b907bcac211cbdea41c1e70"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga715661081379ea5a29e591e6601547ba">mtext_replace</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, int from1, int to1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2, int from2, int to2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Replace sub-text of M-text with another.  <a href="#ga715661081379ea5a29e591e6601547ba"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga8b8d4053c6c7bc47507bad39f3d332f2">mtext_character</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int from, int to, int c)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Search a character in an M-text.  <a href="#ga8b8d4053c6c7bc47507bad39f3d332f2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga7d3f44053118699084e94f1e8493c787">mtext_chr</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int c)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Return the position of the first occurrence of a character in an M-text.  <a href="#ga7d3f44053118699084e94f1e8493c787"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gabb69a4f045cb215091e8cb02f491f4fd">mtext_rchr</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, int c)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Return the position of the last occurrence of a character in an M-text.  <a href="#gabb69a4f045cb215091e8cb02f491f4fd"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gaf2d025d985da7b4f98d07c81fdd500cb">mtext_cmp</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compare two M-texts character-by-character.  <a href="#gaf2d025d985da7b4f98d07c81fdd500cb"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga23fa60794f929caca8c73abebac241cf">mtext_ncmp</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2, int n)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compare initial parts of two M-texts character-by-character.  <a href="#ga23fa60794f929caca8c73abebac241cf"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gaf514b386c0d6469ed56e7806901d2434">mtext_compare</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, int from1, int to1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2, int from2, int to2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compare specified regions of two M-texts.  <a href="#gaf514b386c0d6469ed56e7806901d2434"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gaaa4ce420a94b2e407ad388fc9141af7a">mtext_spn</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *accept)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Search an M-text for a set of characters.  <a href="#gaaa4ce420a94b2e407ad388fc9141af7a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gad4ed9687e60b2cb6f363b244bb756ac8">mtext_cspn</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *reject)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Search an M-text for the complement of a set of characters.  <a href="#gad4ed9687e60b2cb6f363b244bb756ac8"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga9f1ba03d5415f9161c02bc02c5341323">mtext_pbrk</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *accept)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Search an M-text for any of a set of characters.  <a href="#ga9f1ba03d5415f9161c02bc02c5341323"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gab9ba74b25f75a7395d237f98d43fc50f">mtext_tok</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *delim, int *pos)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Look for a token in an M-text.  <a href="#gab9ba74b25f75a7395d237f98d43fc50f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gaa8d53b235cd63fb544fa868c8dd00319">mtext_text</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, int pos, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Locate an M-text in another.  <a href="#gaa8d53b235cd63fb544fa868c8dd00319"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gaa2328a6f85eb2f1f0cdbb51c1e09d294">mtext_search</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, int from, int to, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Locate an M-text in a specific range of another.  <a href="#gaa2328a6f85eb2f1f0cdbb51c1e09d294"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gabc63537384fb25bccd996e35a9bbc908">mtext_casecmp</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compare two M-texts ignoring cases.  <a href="#gabc63537384fb25bccd996e35a9bbc908"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga9b232386c4307b95dd42685236dc3ce9">mtext_ncasecmp</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2, int n)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compare initial parts of two M-texts ignoring cases.  <a href="#ga9b232386c4307b95dd42685236dc3ce9"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga250784b22861845abac509f0d8324be5">mtext_case_compare</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt1, int from1, int to1, <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt2, int from2, int to2)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Compare specified regions of two M-texts ignoring cases.  <a href="#ga250784b22861845abac509f0d8324be5"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gab2a252c7ef64c168467475f0e4ffe072">mtext_lowercase</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Lowercase an M-text.  <a href="#gab2a252c7ef64c168467475f0e4ffe072"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gabca0474405604234294cc5a4e341ca18">mtext_titlecase</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Titlecase an M-text.  <a href="#gabca0474405604234294cc5a4e341ca18"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#gaf8dbb06e910d0f87dbb53d4426977d4f">mtext_uppercase</a> (<a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *mt)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Uppercase an M-text.  <a href="#gaf8dbb06e910d0f87dbb53d4426977d4f"></a><br/></td></tr>
<tr><td colspan="2"><h2>Variables</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__m17nSymbol.html#ga0f53a95817f0b5c26442f8e12f89c16d">MSymbol</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga32374f3750874ea0142af8dac831ab25">Mlanguage</a></td></tr>
<tr><td colspan="2"><h2>Variables: Default Endian of UTF-16 and UTF-32</h2></td></tr>
<tr><td colspan="2"><p><a class="anchor" id="amgrp8e19e46dd8d400b24cc31adc8970d36c"></a> </p>
<br/><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="group__m17nMtext.html#ga4148a7a6fd502d4fb4a786d9fdb7da59">MTextFormat</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga985ecc7ae135b77919af483d12d4d337">MTEXT_FORMAT_UTF_16</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Variable of value MTEXT_FORMAT_UTF_16LE or MTEXT_FORMAT_UTF_16BE.  <a href="#ga985ecc7ae135b77919af483d12d4d337"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__m17nMtext.html#ga3e3b72f642ea80b03cf0644325fccfbe">MTEXT_FORMAT_UTF_32</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Variable of value MTEXT_FORMAT_UTF_32LE or MTEXT_FORMAT_UTF_32BE.  <a href="#ga3e3b72f642ea80b03cf0644325fccfbe"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>M-text objects and API for them. </p>
<p>In the m17n library, text is represented as an object called <em>M-text</em> rather than as a C-string (<code>char *</code> or <code>unsigned char *</code>). An M-text is a sequence of characters whose length is equals to or more than 0, and can be coined from various character sources, e.g. C-strings, files, character codes, etc.</p>
<p>M-texts are more useful than C-strings in the following points.</p>
<ul>
<li>M-texts can handle mixture of characters of various scripts, including all Unicode characters and more. This is an indispensable facility when handling multilingual text.</li>
</ul>
<ul>
<li>Each character in an M-text can have properties called <em>text</em> <em>properties</em>. Text properties store various kinds of information attached to parts of an M-text to provide application programs with a unified view of those information. As rich information can be stored in M-texts in the form of text properties, functions in application programs can be simple.</li>
</ul>
<p>In addition, the library provides many functions to manipulate an M-text just the same way as a C-string. </p>
<hr/><h2>Typedef Documentation</h2>
<a class="anchor" id="gae8bba45315c15c8f79ec4a73ebc52aec"></a><!-- doxytag: member="m17n&#45;core.h::MText" ref="gae8bba45315c15c8f79ec4a73ebc52aec" args="" -->
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          <td class="memname">typedef struct <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a></td>
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<p>Type of <em>M-texts</em>. </p>
<p>The type <a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec" title="Type of M-texts.">MText</a> is for an <em>M-text</em> object. Its internal structure is concealed from application programs. </p>

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<hr/><h2>Enumeration Type Documentation</h2>
<a class="anchor" id="ga4148a7a6fd502d4fb4a786d9fdb7da59"></a><!-- doxytag: member="m17n&#45;core.h::MTextFormat" ref="ga4148a7a6fd502d4fb4a786d9fdb7da59" args="" -->
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          <td class="memname">enum <a class="el" href="group__m17nMtext.html#ga4148a7a6fd502d4fb4a786d9fdb7da59">MTextFormat</a></td>
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<p>Enumeration for specifying the format of an M-text. </p>
<p>The enum <a class="el" href="group__m17nMtext.html#ga4148a7a6fd502d4fb4a786d9fdb7da59" title="Enumeration for specifying the format of an M-text.">MTextFormat</a> is used as an argument of the <a class="el" href="group__m17nMtext.html#ga2114a8366b5aaee6b5d344f69ea5dd78" title="Allocate a new M-text with specified data.">mtext_from_data()</a> function to specify the format of data from which an M-text is created. </p>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="gga4148a7a6fd502d4fb4a786d9fdb7da59ad61701eea01de99f3bf3bd57d6b24d38"></a><!-- doxytag: member="MTEXT_FORMAT_US_ASCII" ref="gga4148a7a6fd502d4fb4a786d9fdb7da59ad61701eea01de99f3bf3bd57d6b24d38" args="" -->MTEXT_FORMAT_US_ASCII</em>&nbsp;</td><td>
<p>US-ASCII encoding </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="gga4148a7a6fd502d4fb4a786d9fdb7da59a008391579e58d7110f28d63736178d90"></a><!-- doxytag: member="MTEXT_FORMAT_UTF_8" ref="gga4148a7a6fd502d4fb4a786d9fdb7da59a008391579e58d7110f28d63736178d90" args="" -->MTEXT_FORMAT_UTF_8</em>&nbsp;</td><td>
<p>UTF-8 encoding </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="gga4148a7a6fd502d4fb4a786d9fdb7da59a42252ef5d95a78cc719768d0fa3ce209"></a><!-- doxytag: member="MTEXT_FORMAT_UTF_16LE" ref="gga4148a7a6fd502d4fb4a786d9fdb7da59a42252ef5d95a78cc719768d0fa3ce209" args="" -->MTEXT_FORMAT_UTF_16LE</em>&nbsp;</td><td>
<p>UTF-16LE encoding </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="gga4148a7a6fd502d4fb4a786d9fdb7da59aab2d4798020fd8edb35089be48170cee"></a><!-- doxytag: member="MTEXT_FORMAT_UTF_16BE" ref="gga4148a7a6fd502d4fb4a786d9fdb7da59aab2d4798020fd8edb35089be48170cee" args="" -->MTEXT_FORMAT_UTF_16BE</em>&nbsp;</td><td>
<p>UTF-16BE encoding </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="gga4148a7a6fd502d4fb4a786d9fdb7da59a79785b67787c6ca1e9c415a2d76df1be"></a><!-- doxytag: member="MTEXT_FORMAT_UTF_32LE" ref="gga4148a7a6fd502d4fb4a786d9fdb7da59a79785b67787c6ca1e9c415a2d76df1be" args="" -->MTEXT_FORMAT_UTF_32LE</em>&nbsp;</td><td>
<p>UTF-32LE encoding </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="gga4148a7a6fd502d4fb4a786d9fdb7da59a07b67ef89723794acb1ba743a30a79ef"></a><!-- doxytag: member="MTEXT_FORMAT_UTF_32BE" ref="gga4148a7a6fd502d4fb4a786d9fdb7da59a07b67ef89723794acb1ba743a30a79ef" args="" -->MTEXT_FORMAT_UTF_32BE</em>&nbsp;</td><td>
<p>UTF-32BE encoding </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="gga4148a7a6fd502d4fb4a786d9fdb7da59a3edc8bb21d072d3ff41447f42ac13ad2"></a><!-- doxytag: member="MTEXT_FORMAT_MAX" ref="gga4148a7a6fd502d4fb4a786d9fdb7da59a3edc8bb21d072d3ff41447f42ac13ad2" args="" -->MTEXT_FORMAT_MAX</em>&nbsp;</td><td>
</td></tr>
</table>
</dd>
</dl>

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<a class="anchor" id="ga23c3bd3e53aa9ba5aec709a939865022"></a><!-- doxytag: member="m17n&#45;core.h::MTextLineBreakOption" ref="ga23c3bd3e53aa9ba5aec709a939865022" args="" -->
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          <td class="memname">enum <a class="el" href="group__m17nMtext.html#ga23c3bd3e53aa9ba5aec709a939865022">MTextLineBreakOption</a></td>
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<p>Enumeration for specifying a set of line breaking option. </p>
<p>The enum <a class="el" href="group__m17nMtext.html#ga23c3bd3e53aa9ba5aec709a939865022" title="Enumeration for specifying a set of line breaking option.">MTextLineBreakOption</a> is to control the line breaking algorithm of the function <a class="el" href="group__m17nMtext.html#ga0d1fa6a2b4c0630b9524d900cd4aab70" title="Find a linebreak postion of an M-text.">mtext_line_break()</a> by specifying logical-or of the members in the arg <em>option</em>. </p>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="gga23c3bd3e53aa9ba5aec709a939865022ae88167377a944d4c84a1a89729aef111"></a><!-- doxytag: member="MTEXT_LBO_SP_CM" ref="gga23c3bd3e53aa9ba5aec709a939865022ae88167377a944d4c84a1a89729aef111" args="" -->MTEXT_LBO_SP_CM</em>&nbsp;</td><td>
<p>Specify the legacy support for space character as base for combining marks. See the section 8.3 of UAX#14. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="gga23c3bd3e53aa9ba5aec709a939865022a7866ca91fdc6b955b14637d911e9b3d5"></a><!-- doxytag: member="MTEXT_LBO_KOREAN_SP" ref="gga23c3bd3e53aa9ba5aec709a939865022a7866ca91fdc6b955b14637d911e9b3d5" args="" -->MTEXT_LBO_KOREAN_SP</em>&nbsp;</td><td>
<p>Specify to use space characters for line breaking Korean text. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="gga23c3bd3e53aa9ba5aec709a939865022a2a5299f48bbbd8b87766cbf889495fb9"></a><!-- doxytag: member="MTEXT_LBO_AI_AS_ID" ref="gga23c3bd3e53aa9ba5aec709a939865022a2a5299f48bbbd8b87766cbf889495fb9" args="" -->MTEXT_LBO_AI_AS_ID</em>&nbsp;</td><td>
<p>Specify to treat characters of ambiguous line-breaking class as of ideographic line-breaking class. </p>
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<tr><td valign="top"><em><a class="anchor" id="gga23c3bd3e53aa9ba5aec709a939865022a857141ca578c6e94548264c01a8e3d42"></a><!-- doxytag: member="MTEXT_LBO_MAX" ref="gga23c3bd3e53aa9ba5aec709a939865022a857141ca578c6e94548264c01a8e3d42" args="" -->MTEXT_LBO_MAX</em>&nbsp;</td><td>
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</dd>
</dl>

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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="ga0d1fa6a2b4c0630b9524d900cd4aab70"></a><!-- doxytag: member="mtext&#45;lbrk.c::mtext_line_break" ref="ga0d1fa6a2b4c0630b9524d900cd4aab70" args="(MText *mt, int pos, int option, int *after)" -->
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          <td class="memname">int mtext_line_break </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>pos</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>option</em>, </td>
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          <td class="paramtype">int *&nbsp;</td>
          <td class="paramname"> <em>after</em></td><td>&nbsp;</td>
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<p>Find a linebreak postion of an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga0d1fa6a2b4c0630b9524d900cd4aab70" title="Find a linebreak postion of an M-text.">mtext_line_break()</a> function checks if position <b>pos</b> is a proper linebreak position of an M-text <b>mt</b> according to the algorithm of The Unicode Standard 4.0 UAX#14. It so, it returns <b>pos</b>. Otherwise, it returns a proper linebreak position before <b>pos</b>.</p>
<p>If <b>option</b> is nonzero, it controls the algorithm by logical-or of the members of <a class="el" href="group__m17nMtext.html#ga23c3bd3e53aa9ba5aec709a939865022" title="Enumeration for specifying a set of line breaking option.">MTextLineBreakOption</a>.</p>
<p>If <b>after</b> is not NULL, a proper linebreak position after <b>pos</b> is stored there. </p>

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<a class="anchor" id="ga1a82c0d7283e62698119ac9c46b3fa8a"></a><!-- doxytag: member="mtext.c::mtext" ref="ga1a82c0d7283e62698119ac9c46b3fa8a" args="()" -->
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          <td class="memname"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a>* mtext </td>
          <td>(</td>
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          <td>&nbsp;)&nbsp;</td>
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<p>Allocate a new M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga1a82c0d7283e62698119ac9c46b3fa8a" title="Allocate a new M-text.">mtext()</a> function allocates a new M-text of length 0 and returns a pointer to it. The allocated M-text will not be freed unless the user explicitly does so with the <a class="el" href="group__m17nObject.html#ga248ba287a615a2cf3cdb99c13275453b" title="Decrement the reference count of a managed object.">m17n_object_unref()</a> function.</p>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nObject.html#ga248ba287a615a2cf3cdb99c13275453b" title="Decrement the reference count of a managed object.">m17n_object_unref()</a> </dd></dl>

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<a class="anchor" id="ga2114a8366b5aaee6b5d344f69ea5dd78"></a><!-- doxytag: member="mtext.c::mtext_from_data" ref="ga2114a8366b5aaee6b5d344f69ea5dd78" args="(const void *data, int nitems, enum MTextFormat format)" -->
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          <td class="memname"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a>* mtext_from_data </td>
          <td>(</td>
          <td class="paramtype">const void *&nbsp;</td>
          <td class="paramname"> <em>data</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>nitems</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">enum <a class="el" href="group__m17nMtext.html#ga4148a7a6fd502d4fb4a786d9fdb7da59">MTextFormat</a>&nbsp;</td>
          <td class="paramname"> <em>format</em></td><td>&nbsp;</td>
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<p>Allocate a new M-text with specified data. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga2114a8366b5aaee6b5d344f69ea5dd78" title="Allocate a new M-text with specified data.">mtext_from_data()</a> function allocates a new M-text whose character sequence is specified by array <b>data</b> of <b>nitems</b> elements. <b>format</b> specifies the format of <b>data</b>.</p>
<p>When <b>format</b> is either <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59ad61701eea01de99f3bf3bd57d6b24d38">MTEXT_FORMAT_US_ASCII</a> or <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a008391579e58d7110f28d63736178d90">MTEXT_FORMAT_UTF_8</a>, the contents of <b>data</b> must be of the type <code>unsigned</code> <code>char</code>, and <b>nitems</b> counts by byte.</p>
<p>When <b>format</b> is either <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a42252ef5d95a78cc719768d0fa3ce209">MTEXT_FORMAT_UTF_16LE</a> or <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59aab2d4798020fd8edb35089be48170cee">MTEXT_FORMAT_UTF_16BE</a>, the contents of <b>data</b> must be of the type <code>unsigned</code> <code>short</code>, and <b>nitems</b> counts by unsigned short.</p>
<p>When <b>format</b> is either <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a79785b67787c6ca1e9c415a2d76df1be">MTEXT_FORMAT_UTF_32LE</a> or <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a07b67ef89723794acb1ba743a30a79ef">MTEXT_FORMAT_UTF_32BE</a>, the contents of <b>data</b> must be of the type <code>unsigned</code>, and <b>nitems</b> counts by unsigned.</p>
<p>The character sequence of the M-text is not modifiable. The contents of <b>data</b> must not be modified while the M-text is alive.</p>
<p>The allocated M-text will not be freed unless the user explicitly does so with the <a class="el" href="group__m17nObject.html#ga248ba287a615a2cf3cdb99c13275453b" title="Decrement the reference count of a managed object.">m17n_object_unref()</a> function. Even in that case, <b>data</b> is not freed.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga2114a8366b5aaee6b5d344f69ea5dd78" title="Allocate a new M-text with specified data.">mtext_from_data()</a> returns a pointer to the allocated M-text. Otherwise it returns <code>NULL</code> and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_MTEXT</code> </dd></dl>

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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
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<p>Get information about the text data in M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga58dfc38b90385749199caa5e6bc10ec4" title="Get information about the text data in M-text.">mtext_data()</a> function returns a pointer to the text data of M-text <b>mt</b>. If <b>fmt</b> is not NULL, the format of the text data is stored in it. If <b>nunits</b> is not NULL, the number of units of the text data is stored in it.</p>
<p>If <b>pos_idx</b> is not NULL and it points to a non-negative number, what it points to is a character position. In this case, the return value is a pointer to the text data of a character at that position.</p>
<p>Otherwise, if <b>unit_idx</b> is not NULL, it points to a unit position. In this case, the return value is a pointer to the text data of a character containing that unit.</p>
<p>The character position and unit position of the return value are stored in <b>pos_idx</b> and <b>unit_dix</b> respectively if they are not NULL.</p>
<ul>
<li>
<p class="startli">If the format of the text data is MTEXT_FORMAT_US_ASCII or MTEXT_FORMAT_UTF_8, one unit is unsigned char.</p>
<p class="endli"></p>
</li>
<li>
<p class="startli">If the format is MTEXT_FORMAT_UTF_16LE or MTEXT_FORMAT_UTF_16BE, one unit is unsigned short.</p>
<p class="endli"></p>
</li>
<li>
<p class="startli">If the format is MTEXT_FORMAT_UTF_32LE or MTEXT_FORMAT_UTF_32BE, one unit is unsigned int.</p>
<p class="endli"></p>
</li>
</ul>

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<a class="anchor" id="ga28ea3879a9dae45127bd62499645c7c3"></a><!-- doxytag: member="mtext.c::mtext_len" ref="ga28ea3879a9dae45127bd62499645c7c3" args="(MText *mt)" -->
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<p>Number of characters in M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga28ea3879a9dae45127bd62499645c7c3" title="Number of characters in M-text.">mtext_len()</a> function returns the number of characters in M-text <b>mt</b>. </p>

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<a class="anchor" id="ga29fd21f8bd3b80a09628ea2dc62db3e5"></a><!-- doxytag: member="mtext.c::mtext_ref_char" ref="ga29fd21f8bd3b80a09628ea2dc62db3e5" args="(MText *mt, int pos)" -->
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<p>Return the character at the specified position in an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga29fd21f8bd3b80a09628ea2dc62db3e5" title="Return the character at the specified position in an M-text.">mtext_ref_char()</a> function returns the character at <b>pos</b> in M-text <b>mt</b>. If an error is detected, it returns -1 and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</p>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>

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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
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<p>Store a character into an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga1378506cd336f1d2029672991ecf8973" title="Store a character into an M-text.">mtext_set_char()</a> function sets character <b>c</b>, which has no text properties, at <b>pos</b> in M-text <b>mt</b>.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga1378506cd336f1d2029672991ecf8973" title="Store a character into an M-text.">mtext_set_char()</a> returns 0. Otherwise it returns -1 and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>

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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
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<p>Append a character to an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga21036a5bc066530f7cf9196fbb568efd" title="Append a character to an M-text.">mtext_cat_char()</a> function appends character <b>c</b>, which has no text properties, to the end of M-text <b>mt</b>.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns a pointer to the resulting M-text <b>mt</b>. If <b>c</b> is an invalid character, it returns <code>NULL</code>.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaf0a0af628d6e4d69fbacea149885a72d" title="Append an M-text to another.">mtext_cat()</a>, <a class="el" href="group__m17nMtext.html#gafd2fa9c1080067533e584e92ebe15f5c" title="Append a part of an M-text to another.">mtext_ncat()</a> </dd></dl>

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          <td class="memname"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a>* mtext_dup </td>
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<p>Create a copy of an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#gacd7bdc22fa2aacc6cfb3630697e6d3f9" title="Create a copy of an M-text.">mtext_dup()</a> function creates a copy of M-text <b>mt</b> while inheriting all the text properties of <b>mt</b>.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns a pointer to the created copy.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga2349c5cda40d1880c0c560be4c69c911" title="Create a new M-text from a part of an existing M-text.">mtext_duplicate()</a> </dd></dl>

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          <td>(</td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
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<p>Append an M-text to another. </p>
<p>The <a class="el" href="group__m17nMtext.html#gaf0a0af628d6e4d69fbacea149885a72d" title="Append an M-text to another.">mtext_cat()</a> function appends M-text <b>mt2</b> to the end of M-text <b>mt1</b> while inheriting all the text properties. <b>mt2</b> itself is not modified.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns a pointer to the resulting M-text <b>mt1</b>.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gafd2fa9c1080067533e584e92ebe15f5c" title="Append a part of an M-text to another.">mtext_ncat()</a>, <a class="el" href="group__m17nMtext.html#ga21036a5bc066530f7cf9196fbb568efd" title="Append a character to an M-text.">mtext_cat_char()</a> </dd></dl>

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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em>, </td>
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          <td class="paramname"> <em>n</em></td><td>&nbsp;</td>
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<p>Append a part of an M-text to another. </p>
<p>The <a class="el" href="group__m17nMtext.html#gafd2fa9c1080067533e584e92ebe15f5c" title="Append a part of an M-text to another.">mtext_ncat()</a> function appends the first <b>n</b> characters of M-text <b>mt2</b> to the end of M-text <b>mt1</b> while inheriting all the text properties. If the length of <b>mt2</b> is less than <b>n</b>, all characters are copied. <b>mt2</b> is not modified.</p>
<dl class="user"><dt><b>Return value: </b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#gafd2fa9c1080067533e584e92ebe15f5c" title="Append a part of an M-text to another.">mtext_ncat()</a> returns a pointer to the resulting M-text <b>mt1</b>. If an error is detected, it returns <code>NULL</code> and assigns an error code to the global variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaf0a0af628d6e4d69fbacea149885a72d" title="Append an M-text to another.">mtext_cat()</a>, <a class="el" href="group__m17nMtext.html#ga21036a5bc066530f7cf9196fbb568efd" title="Append a character to an M-text.">mtext_cat_char()</a> </dd></dl>

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<p>Copy an M-text to another. </p>
<p>The <a class="el" href="group__m17nMtext.html#gaa9f56201d62d4f39e8a64b4460450ba4" title="Copy an M-text to another.">mtext_cpy()</a> function copies M-text <b>mt2</b> to M-text <b>mt1</b> while inheriting all the text properties. The old text in <b>mt1</b> is overwritten and the length of <b>mt1</b> is extended if necessary. <b>mt2</b> is not modified.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns a pointer to the resulting M-text <b>mt1</b>.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga83df72acd6f78cec009b642e0afdcfee" title="Copy the first some characters in an M-text to another.">mtext_ncpy()</a>, <a class="el" href="group__m17nMtext.html#ga45dcea52c2d59bcd129af5e8323593cf" title="Copy characters in the specified range into an M-text.">mtext_copy()</a> </dd></dl>

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<a class="anchor" id="ga83df72acd6f78cec009b642e0afdcfee"></a><!-- doxytag: member="mtext.c::mtext_ncpy" ref="ga83df72acd6f78cec009b642e0afdcfee" args="(MText *mt1, MText *mt2, int n)" -->
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          <td class="memname"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a>* mtext_ncpy </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt1</em>, </td>
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          <td></td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>n</em></td><td>&nbsp;</td>
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<p>Copy the first some characters in an M-text to another. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga83df72acd6f78cec009b642e0afdcfee" title="Copy the first some characters in an M-text to another.">mtext_ncpy()</a> function copies the first <b>n</b> characters of M-text <b>mt2</b> to M-text <b>mt1</b> while inheriting all the text properties. If the length of <b>mt2</b> is less than <b>n</b>, all characters of <b>mt2</b> are copied. The old text in <b>mt1</b> is overwritten and the length of <b>mt1</b> is extended if necessary. <b>mt2</b> is not modified.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga83df72acd6f78cec009b642e0afdcfee" title="Copy the first some characters in an M-text to another.">mtext_ncpy()</a> returns a pointer to the resulting M-text <b>mt1</b>. If an error is detected, it returns <code>NULL</code> and assigns an error code to the global variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaa9f56201d62d4f39e8a64b4460450ba4" title="Copy an M-text to another.">mtext_cpy()</a>, <a class="el" href="group__m17nMtext.html#ga45dcea52c2d59bcd129af5e8323593cf" title="Copy characters in the specified range into an M-text.">mtext_copy()</a> </dd></dl>

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<a class="anchor" id="ga2349c5cda40d1880c0c560be4c69c911"></a><!-- doxytag: member="mtext.c::mtext_duplicate" ref="ga2349c5cda40d1880c0c560be4c69c911" args="(MText *mt, int from, int to)" -->
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          <td class="memname"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a>* mtext_duplicate </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt</em>, </td>
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<p>Create a new M-text from a part of an existing M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga2349c5cda40d1880c0c560be4c69c911" title="Create a new M-text from a part of an existing M-text.">mtext_duplicate()</a> function creates a copy of sub-text of M-text <b>mt</b>, starting at <b>from</b> (inclusive) and ending at <b>to</b> (exclusive) while inheriting all the text properties of <b>mt</b>. <b>mt</b> itself is not modified.</p>
<dl class="user"><dt><b>Return value: </b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga2349c5cda40d1880c0c560be4c69c911" title="Create a new M-text from a part of an existing M-text.">mtext_duplicate()</a> returns a pointer to the created M-text. If an error is detected, it returns NULL and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gacd7bdc22fa2aacc6cfb3630697e6d3f9" title="Create a copy of an M-text.">mtext_dup()</a> </dd></dl>

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<a class="anchor" id="ga45dcea52c2d59bcd129af5e8323593cf"></a><!-- doxytag: member="mtext.c::mtext_copy" ref="ga45dcea52c2d59bcd129af5e8323593cf" args="(MText *mt1, int pos, MText *mt2, int from, int to)" -->
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          <td class="memname"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a>* mtext_copy </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt1</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>pos</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>from</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>to</em></td><td>&nbsp;</td>
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<p>Copy characters in the specified range into an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga45dcea52c2d59bcd129af5e8323593cf" title="Copy characters in the specified range into an M-text.">mtext_copy()</a> function copies the text between <b>from</b> (inclusive) and <b>to</b> (exclusive) in M-text <b>mt2</b> to the region starting at <b>pos</b> in M-text <b>mt1</b> while inheriting the text properties. The old text in <b>mt1</b> is overwritten and the length of <b>mt1</b> is extended if necessary. <b>mt2</b> is not modified.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga45dcea52c2d59bcd129af5e8323593cf" title="Copy characters in the specified range into an M-text.">mtext_copy()</a> returns a pointer to the modified <b>mt1</b>. Otherwise, it returns <code>NULL</code> and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaa9f56201d62d4f39e8a64b4460450ba4" title="Copy an M-text to another.">mtext_cpy()</a>, <a class="el" href="group__m17nMtext.html#ga83df72acd6f78cec009b642e0afdcfee" title="Copy the first some characters in an M-text to another.">mtext_ncpy()</a> </dd></dl>

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<a class="anchor" id="ga592d9cfe5c76ee384568c053ad7ea8b5"></a><!-- doxytag: member="mtext.c::mtext_del" ref="ga592d9cfe5c76ee384568c053ad7ea8b5" args="(MText *mt, int from, int to)" -->
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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt</em>, </td>
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          <td></td>
          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>from</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>to</em></td><td>&nbsp;</td>
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<p>Delete characters in the specified range destructively. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga592d9cfe5c76ee384568c053ad7ea8b5" title="Delete characters in the specified range destructively.">mtext_del()</a> function deletes the characters in the range <b>from</b> (inclusive) and <b>to</b> (exclusive) from M-text <b>mt</b> destructively. As a result, the length of <b>mt</b> shrinks by (<b>to</b> - <b>from</b>) characters.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga592d9cfe5c76ee384568c053ad7ea8b5" title="Delete characters in the specified range destructively.">mtext_del()</a> returns 0. Otherwise, it returns -1 and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga38ed0e4b19ec03ad6d522ab433acde4e" title="Insert an M-text into another M-text.">mtext_ins()</a> </dd></dl>

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<a class="anchor" id="ga38ed0e4b19ec03ad6d522ab433acde4e"></a><!-- doxytag: member="mtext.c::mtext_ins" ref="ga38ed0e4b19ec03ad6d522ab433acde4e" args="(MText *mt1, int pos, MText *mt2)" -->
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          <td class="memname">int mtext_ins </td>
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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt1</em>, </td>
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          <td></td>
          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>pos</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em></td><td>&nbsp;</td>
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<p>Insert an M-text into another M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga38ed0e4b19ec03ad6d522ab433acde4e" title="Insert an M-text into another M-text.">mtext_ins()</a> function inserts M-text <b>mt2</b> into M-text <b>mt1</b>, at position <b>pos</b>. As a result, <b>mt1</b> is lengthen by the length of <b>mt2</b>. On insertion, all the text properties of <b>mt2</b> are inherited. The original <b>mt2</b> is not modified.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga38ed0e4b19ec03ad6d522ab433acde4e" title="Insert an M-text into another M-text.">mtext_ins()</a> returns 0. Otherwise, it returns -1 and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> , <code>MERROR_MTEXT</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga592d9cfe5c76ee384568c053ad7ea8b5" title="Delete characters in the specified range destructively.">mtext_del()</a> , <a class="el" href="group__m17nMtext.html#ga39d820131ec741f5822b206f44dce2df" title="Insert sub-text of an M-text into another M-text.">mtext_insert()</a> </dd></dl>

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<a class="anchor" id="ga39d820131ec741f5822b206f44dce2df"></a><!-- doxytag: member="mtext.c::mtext_insert" ref="ga39d820131ec741f5822b206f44dce2df" args="(MText *mt1, int pos, MText *mt2, int from, int to)" -->
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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt1</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>pos</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>from</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>to</em></td><td>&nbsp;</td>
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<p>Insert sub-text of an M-text into another M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga39d820131ec741f5822b206f44dce2df" title="Insert sub-text of an M-text into another M-text.">mtext_insert()</a> function inserts sub-text of M-text <b>mt2</b> between <b>from</b> (inclusive) and <b>to</b> (exclusive) into M-text <b>mt1</b>, at position <b>pos</b>. As a result, <b>mt1</b> is lengthen by (<b>to</b> - <b>from</b>). On insertion, all the text properties of the sub-text of <b>mt2</b> are inherited.</p>
<dl class="user"><dt><b>Return value: </b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga39d820131ec741f5822b206f44dce2df" title="Insert sub-text of an M-text into another M-text.">mtext_insert()</a> returns 0. Otherwise, it returns -1 and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_MTEXT</code> , <code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga38ed0e4b19ec03ad6d522ab433acde4e" title="Insert an M-text into another M-text.">mtext_ins()</a> </dd></dl>

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<a class="anchor" id="ga683d68d84b907bcac211cbdea41c1e70"></a><!-- doxytag: member="mtext.c::mtext_ins_char" ref="ga683d68d84b907bcac211cbdea41c1e70" args="(MText *mt, int pos, int c, int n)" -->
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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt</em>, </td>
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          <td class="paramname"> <em>pos</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>c</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>n</em></td><td>&nbsp;</td>
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<p>Insert a character into an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga683d68d84b907bcac211cbdea41c1e70" title="Insert a character into an M-text.">mtext_ins_char()</a> function inserts <b>n</b> copies of character <b>c</b> into M-text <b>mt</b> at position <b>pos</b>. As a result, <b>mt</b> is lengthen by <b>n</b>.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga38ed0e4b19ec03ad6d522ab433acde4e" title="Insert an M-text into another M-text.">mtext_ins()</a> returns 0. Otherwise, it returns -1 and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd>mtext_ins, <a class="el" href="group__m17nMtext.html#ga592d9cfe5c76ee384568c053ad7ea8b5" title="Delete characters in the specified range destructively.">mtext_del()</a> </dd></dl>

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<a class="anchor" id="ga715661081379ea5a29e591e6601547ba"></a><!-- doxytag: member="mtext.c::mtext_replace" ref="ga715661081379ea5a29e591e6601547ba" args="(MText *mt1, int from1, int to1, MText *mt2, int from2, int to2)" -->
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          <td>(</td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt1</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>from1</em>, </td>
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          <td></td>
          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>to1</em>, </td>
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        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>from2</em>, </td>
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          <td></td>
          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>to2</em></td><td>&nbsp;</td>
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<p>Replace sub-text of M-text with another. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga715661081379ea5a29e591e6601547ba" title="Replace sub-text of M-text with another.">mtext_replace()</a> function replaces sub-text of M-text <b>mt1</b> between <b>from1</b> (inclusive) and <b>to1</b> (exclusive) with the sub-text of M-text <b>mt2</b> between <b>from2</b> (inclusive) and <b>to2</b> (exclusive). The new sub-text inherits text properties of the old sub-text.</p>
<dl class="user"><dt><b>Return value: </b></dt><dd>If the operation was successful, <a class="el" href="group__m17nMtext.html#ga715661081379ea5a29e591e6601547ba" title="Replace sub-text of M-text with another.">mtext_replace()</a> returns 0. Otherwise, it returns -1 and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_MTEXT</code> , <code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga39d820131ec741f5822b206f44dce2df" title="Insert sub-text of an M-text into another M-text.">mtext_insert()</a> </dd></dl>

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<p>Search a character in an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga8b8d4053c6c7bc47507bad39f3d332f2" title="Search a character in an M-text.">mtext_character()</a> function searches M-text <b>mt</b> for character <b>c</b>. If <b>from</b> is less than <b>to</b>, the search begins at position <b>from</b> and goes forward but does not exceed (<b>to</b> - 1). Otherwise, the search begins at position (<b>from</b> - 1) and goes backward but does not exceed <b>to</b>. An invalid position specification is regarded as both <b>from</b> and <b>to</b> being 0.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If <b>c</b> is found, <a class="el" href="group__m17nMtext.html#ga8b8d4053c6c7bc47507bad39f3d332f2" title="Search a character in an M-text.">mtext_character()</a> returns the position of its first occurrence. Otherwise it returns -1 without changing the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>. If an error is detected, it returns -1 and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga7d3f44053118699084e94f1e8493c787" title="Return the position of the first occurrence of a character in an M-text.">mtext_chr()</a>, <a class="el" href="group__m17nMtext.html#gabb69a4f045cb215091e8cb02f491f4fd" title="Return the position of the last occurrence of a character in an M-text.">mtext_rchr()</a> </dd></dl>

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<p>Return the position of the first occurrence of a character in an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga7d3f44053118699084e94f1e8493c787" title="Return the position of the first occurrence of a character in an M-text.">mtext_chr()</a> function searches M-text <b>mt</b> for character <b>c</b>. The search starts from the beginning of <b>mt</b> and goes toward the end.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If <b>c</b> is found, <a class="el" href="group__m17nMtext.html#ga7d3f44053118699084e94f1e8493c787" title="Return the position of the first occurrence of a character in an M-text.">mtext_chr()</a> returns its position; otherwise it returns -1.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gabb69a4f045cb215091e8cb02f491f4fd" title="Return the position of the last occurrence of a character in an M-text.">mtext_rchr()</a>, <a class="el" href="group__m17nMtext.html#ga8b8d4053c6c7bc47507bad39f3d332f2" title="Search a character in an M-text.">mtext_character()</a> </dd></dl>

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<a class="anchor" id="gabb69a4f045cb215091e8cb02f491f4fd"></a><!-- doxytag: member="mtext.c::mtext_rchr" ref="gabb69a4f045cb215091e8cb02f491f4fd" args="(MText *mt, int c)" -->
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<p>Return the position of the last occurrence of a character in an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#gabb69a4f045cb215091e8cb02f491f4fd" title="Return the position of the last occurrence of a character in an M-text.">mtext_rchr()</a> function searches M-text <b>mt</b> for character <b>c</b>. The search starts from the end of <b>mt</b> and goes backwardly toward the beginning.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If <b>c</b> is found, <a class="el" href="group__m17nMtext.html#gabb69a4f045cb215091e8cb02f491f4fd" title="Return the position of the last occurrence of a character in an M-text.">mtext_rchr()</a> returns its position; otherwise it returns -1.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga7d3f44053118699084e94f1e8493c787" title="Return the position of the first occurrence of a character in an M-text.">mtext_chr()</a>, <a class="el" href="group__m17nMtext.html#ga8b8d4053c6c7bc47507bad39f3d332f2" title="Search a character in an M-text.">mtext_character()</a> </dd></dl>

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<p>Compare two M-texts character-by-character. </p>
<p>The <a class="el" href="group__m17nMtext.html#gaf2d025d985da7b4f98d07c81fdd500cb" title="Compare two M-texts character-by-character.">mtext_cmp()</a> function compares M-texts <b>mt1</b> and <b>mt2</b> character by character.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns 1, 0, or -1 if <b>mt1</b> is found greater than, equal to, or less than <b>mt2</b>, respectively. Comparison is based on character codes.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga23fa60794f929caca8c73abebac241cf" title="Compare initial parts of two M-texts character-by-character.">mtext_ncmp()</a>, <a class="el" href="group__m17nMtext.html#gabc63537384fb25bccd996e35a9bbc908" title="Compare two M-texts ignoring cases.">mtext_casecmp()</a>, <a class="el" href="group__m17nMtext.html#ga9b232386c4307b95dd42685236dc3ce9" title="Compare initial parts of two M-texts ignoring cases.">mtext_ncasecmp()</a>, <a class="el" href="group__m17nMtext.html#gaf514b386c0d6469ed56e7806901d2434" title="Compare specified regions of two M-texts.">mtext_compare()</a>, <a class="el" href="group__m17nMtext.html#ga250784b22861845abac509f0d8324be5" title="Compare specified regions of two M-texts ignoring cases.">mtext_case_compare()</a> </dd></dl>

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          <td class="paramname"> <em>mt2</em>, </td>
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<p>Compare initial parts of two M-texts character-by-character. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga23fa60794f929caca8c73abebac241cf" title="Compare initial parts of two M-texts character-by-character.">mtext_ncmp()</a> function is similar to <a class="el" href="group__m17nMtext.html#gaf2d025d985da7b4f98d07c81fdd500cb" title="Compare two M-texts character-by-character.">mtext_cmp()</a>, but compares at most <b>n</b> characters from the beginning.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns 1, 0, or -1 if <b>mt1</b> is found greater than, equal to, or less than <b>mt2</b>, respectively.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaf2d025d985da7b4f98d07c81fdd500cb" title="Compare two M-texts character-by-character.">mtext_cmp()</a>, <a class="el" href="group__m17nMtext.html#gabc63537384fb25bccd996e35a9bbc908" title="Compare two M-texts ignoring cases.">mtext_casecmp()</a>, <a class="el" href="group__m17nMtext.html#ga9b232386c4307b95dd42685236dc3ce9" title="Compare initial parts of two M-texts ignoring cases.">mtext_ncasecmp()</a> <a class="el" href="group__m17nMtext.html#gaf514b386c0d6469ed56e7806901d2434" title="Compare specified regions of two M-texts.">mtext_compare()</a>, <a class="el" href="group__m17nMtext.html#ga250784b22861845abac509f0d8324be5" title="Compare specified regions of two M-texts ignoring cases.">mtext_case_compare()</a> </dd></dl>

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<p>Compare specified regions of two M-texts. </p>
<p>The <a class="el" href="group__m17nMtext.html#gaf514b386c0d6469ed56e7806901d2434" title="Compare specified regions of two M-texts.">mtext_compare()</a> function compares two M-texts <b>mt1</b> and <b>mt2</b>, character-by-character. The compared regions are between <b>from1</b> and <b>to1</b> in <b>mt1</b> and <b>from2</b> to <b>to2</b> in MT2. <b>from1</b> and <b>from2</b> are inclusive, <b>to1</b> and <b>to2</b> are exclusive. <b>from1</b> being equal to <b>to1</b> (or <b>from2</b> being equal to <b>to2</b>) means an M-text of length zero. An invalid region specification is regarded as both <b>from1</b> and <b>to1</b> (or <b>from2</b> and <b>to2</b>) being 0.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns 1, 0, or -1 if <b>mt1</b> is found greater than, equal to, or less than <b>mt2</b>, respectively. Comparison is based on character codes.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaf2d025d985da7b4f98d07c81fdd500cb" title="Compare two M-texts character-by-character.">mtext_cmp()</a>, <a class="el" href="group__m17nMtext.html#ga23fa60794f929caca8c73abebac241cf" title="Compare initial parts of two M-texts character-by-character.">mtext_ncmp()</a>, <a class="el" href="group__m17nMtext.html#gabc63537384fb25bccd996e35a9bbc908" title="Compare two M-texts ignoring cases.">mtext_casecmp()</a>, <a class="el" href="group__m17nMtext.html#ga9b232386c4307b95dd42685236dc3ce9" title="Compare initial parts of two M-texts ignoring cases.">mtext_ncasecmp()</a>, <a class="el" href="group__m17nMtext.html#ga250784b22861845abac509f0d8324be5" title="Compare specified regions of two M-texts ignoring cases.">mtext_case_compare()</a> </dd></dl>

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<p>Search an M-text for a set of characters. </p>
<p>The <a class="el" href="group__m17nMtext.html#gaaa4ce420a94b2e407ad388fc9141af7a" title="Search an M-text for a set of characters.">mtext_spn()</a> function returns the length of the initial segment of M-text <b>mt1</b> that consists entirely of characters in M-text <b>mt2</b>.</p>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gad4ed9687e60b2cb6f363b244bb756ac8" title="Search an M-text for the complement of a set of characters.">mtext_cspn()</a> </dd></dl>

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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>reject</em></td><td>&nbsp;</td>
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<p>Search an M-text for the complement of a set of characters. </p>
<p>The <a class="el" href="group__m17nMtext.html#gad4ed9687e60b2cb6f363b244bb756ac8" title="Search an M-text for the complement of a set of characters.">mtext_cspn()</a> returns the length of the initial segment of M-text <b>mt1</b> that consists entirely of characters not in M-text <b>mt2</b>.</p>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaaa4ce420a94b2e407ad388fc9141af7a" title="Search an M-text for a set of characters.">mtext_spn()</a> </dd></dl>

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          <td class="memname">int mtext_pbrk </td>
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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt</em>, </td>
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          <td></td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>accept</em></td><td>&nbsp;</td>
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<p>Search an M-text for any of a set of characters. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga9f1ba03d5415f9161c02bc02c5341323" title="Search an M-text for any of a set of characters.">mtext_pbrk()</a> function locates the first occurrence in M-text <b>mt1</b> of any of the characters in M-text <b>mt2</b>.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns the position in <b>mt1</b> of the found character. If no such character is found, it returns -1. </dd></dl>

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          <td class="memname"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a>* mtext_tok </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
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<p>Look for a token in an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#gab9ba74b25f75a7395d237f98d43fc50f" title="Look for a token in an M-text.">mtext_tok()</a> function searches a token that firstly occurs after position <b>pos</b> in M-text <b>mt</b>. Here, a token means a substring each of which does not appear in M-text <b>delim</b>. Note that the type of <b>pos</b> is not <code>int</code> but pointer to <code>int</code>.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If a token is found, <a class="el" href="group__m17nMtext.html#gab9ba74b25f75a7395d237f98d43fc50f" title="Look for a token in an M-text.">mtext_tok()</a> copies the corresponding part of <b>mt</b> and returns a pointer to the copy. In this case, <b>pos</b> is set to the end of the found token. If no token is found, it returns <code>NULL</code> without changing the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>. If an error is detected, it returns <code>NULL</code> and assigns an error code to the external variable <a class="el" href="group__m17nError.html#ga995a2e373cfd6a8e5eaca8686b5b0a73" title="External variable to hold error code of the m17n library.">merror_code</a>.</dd></dl>
<dl class="user"><dt><b>Errors:</b></dt><dd><code>MERROR_RANGE</code> </dd></dl>

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          <td class="paramname"> <em>pos</em>, </td>
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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em></td><td>&nbsp;</td>
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<p>Locate an M-text in another. </p>
<p>The <a class="el" href="group__m17nMtext.html#gaa8d53b235cd63fb544fa868c8dd00319" title="Locate an M-text in another.">mtext_text()</a> function finds the first occurrence of M-text <b>mt2</b> in M-text <b>mt1</b> after the position <b>pos</b> while ignoring difference of the text properties.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If <b>mt2</b> is found in <b>mt1</b>, <a class="el" href="group__m17nMtext.html#gaa8d53b235cd63fb544fa868c8dd00319" title="Locate an M-text in another.">mtext_text()</a> returns the position of it first occurrence. Otherwise it returns -1. If <b>mt2</b> is empty, it returns 0. </dd></dl>

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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em></td><td>&nbsp;</td>
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<p>Locate an M-text in a specific range of another. </p>
<p>The <a class="el" href="group__m17nMtext.html#gaa2328a6f85eb2f1f0cdbb51c1e09d294" title="Locate an M-text in a specific range of another.">mtext_search()</a> function searches for the first occurrence of M-text <b>mt2</b> in M-text <b>mt1</b> in the region <b>from</b> and <b>to</b> while ignoring difference of the text properties. If <b>from</b> is less than <b>to</b>, the forward search starts from <b>from</b>, otherwise the backward search starts from <b>to</b>.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>If <b>mt2</b> is found in <b>mt1</b>, <a class="el" href="group__m17nMtext.html#gaa2328a6f85eb2f1f0cdbb51c1e09d294" title="Locate an M-text in a specific range of another.">mtext_search()</a> returns the position of the first occurrence. Otherwise it returns -1. If <b>mt2</b> is empty, it returns 0. </dd></dl>

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          <td class="paramname"> <em>mt1</em>, </td>
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          <td></td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em></td><td>&nbsp;</td>
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<p>Compare two M-texts ignoring cases. </p>
<p>The <a class="el" href="group__m17nMtext.html#gabc63537384fb25bccd996e35a9bbc908" title="Compare two M-texts ignoring cases.">mtext_casecmp()</a> function is similar to <a class="el" href="group__m17nMtext.html#gaf2d025d985da7b4f98d07c81fdd500cb" title="Compare two M-texts character-by-character.">mtext_cmp()</a>, but ignores cases on comparison.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns 1, 0, or -1 if <b>mt1</b> is found greater than, equal to, or less than <b>mt2</b>, respectively.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaf2d025d985da7b4f98d07c81fdd500cb" title="Compare two M-texts character-by-character.">mtext_cmp()</a>, <a class="el" href="group__m17nMtext.html#ga23fa60794f929caca8c73abebac241cf" title="Compare initial parts of two M-texts character-by-character.">mtext_ncmp()</a>, <a class="el" href="group__m17nMtext.html#ga9b232386c4307b95dd42685236dc3ce9" title="Compare initial parts of two M-texts ignoring cases.">mtext_ncasecmp()</a> <a class="el" href="group__m17nMtext.html#gaf514b386c0d6469ed56e7806901d2434" title="Compare specified regions of two M-texts.">mtext_compare()</a>, <a class="el" href="group__m17nMtext.html#ga250784b22861845abac509f0d8324be5" title="Compare specified regions of two M-texts ignoring cases.">mtext_case_compare()</a> </dd></dl>

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          <td class="paramname"> <em>mt1</em>, </td>
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          <td></td>
          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>n</em></td><td>&nbsp;</td>
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<p>Compare initial parts of two M-texts ignoring cases. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga9b232386c4307b95dd42685236dc3ce9" title="Compare initial parts of two M-texts ignoring cases.">mtext_ncasecmp()</a> function is similar to <a class="el" href="group__m17nMtext.html#gabc63537384fb25bccd996e35a9bbc908" title="Compare two M-texts ignoring cases.">mtext_casecmp()</a>, but compares at most <b>n</b> characters from the beginning.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns 1, 0, or -1 if <b>mt1</b> is found greater than, equal to, or less than <b>mt2</b>, respectively.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaf2d025d985da7b4f98d07c81fdd500cb" title="Compare two M-texts character-by-character.">mtext_cmp()</a>, <a class="el" href="group__m17nMtext.html#gabc63537384fb25bccd996e35a9bbc908" title="Compare two M-texts ignoring cases.">mtext_casecmp()</a>, <a class="el" href="group__m17nMtext.html#gabc63537384fb25bccd996e35a9bbc908" title="Compare two M-texts ignoring cases.">mtext_casecmp()</a> <a class="el" href="group__m17nMtext.html#gaf514b386c0d6469ed56e7806901d2434" title="Compare specified regions of two M-texts.">mtext_compare()</a>, <a class="el" href="group__m17nMtext.html#ga250784b22861845abac509f0d8324be5" title="Compare specified regions of two M-texts ignoring cases.">mtext_case_compare()</a> </dd></dl>

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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>from1</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>to1</em>, </td>
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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
          <td class="paramname"> <em>mt2</em>, </td>
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          <td class="paramname"> <em>from2</em>, </td>
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          <td class="paramtype">int&nbsp;</td>
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<p>Compare specified regions of two M-texts ignoring cases. </p>
<p>The <a class="el" href="group__m17nMtext.html#ga250784b22861845abac509f0d8324be5" title="Compare specified regions of two M-texts ignoring cases.">mtext_case_compare()</a> function compares two M-texts <b>mt1</b> and <b>mt2</b>, character-by-character, ignoring cases. The compared regions are between <b>from1</b> and <b>to1</b> in <b>mt1</b> and <b>from2</b> to <b>to2</b> in MT2. <b>from1</b> and <b>from2</b> are inclusive, <b>to1</b> and <b>to2</b> are exclusive. <b>from1</b> being equal to <b>to1</b> (or <b>from2</b> being equal to <b>to2</b>) means an M-text of length zero. An invalid region specification is regarded as both <b>from1</b> and <b>to1</b> (or <b>from2</b> and <b>to2</b>) being 0.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns 1, 0, or -1 if <b>mt1</b> is found greater than, equal to, or less than <b>mt2</b>, respectively. Comparison is based on character codes.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gaf2d025d985da7b4f98d07c81fdd500cb" title="Compare two M-texts character-by-character.">mtext_cmp()</a>, <a class="el" href="group__m17nMtext.html#ga23fa60794f929caca8c73abebac241cf" title="Compare initial parts of two M-texts character-by-character.">mtext_ncmp()</a>, <a class="el" href="group__m17nMtext.html#gabc63537384fb25bccd996e35a9bbc908" title="Compare two M-texts ignoring cases.">mtext_casecmp()</a>, <a class="el" href="group__m17nMtext.html#ga9b232386c4307b95dd42685236dc3ce9" title="Compare initial parts of two M-texts ignoring cases.">mtext_ncasecmp()</a>, <a class="el" href="group__m17nMtext.html#gaf514b386c0d6469ed56e7806901d2434" title="Compare specified regions of two M-texts.">mtext_compare()</a> </dd></dl>

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<p>Lowercase an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#gab2a252c7ef64c168467475f0e4ffe072" title="Lowercase an M-text.">mtext_lowercase()</a> function destructively converts each character in M-text <b>mt</b> to lowercase. Adjacent characters in <b>mt</b> may affect the case conversion. If the Mlanguage text property is attached to <b>mt</b>, it may also affect the conversion. The length of <b>mt</b> may change. Characters that cannot be converted to lowercase is left unchanged. All the text properties are inherited.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns the length of the updated <b>mt</b>.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gabca0474405604234294cc5a4e341ca18" title="Titlecase an M-text.">mtext_titlecase()</a>, <a class="el" href="group__m17nMtext.html#gaf8dbb06e910d0f87dbb53d4426977d4f" title="Uppercase an M-text.">mtext_uppercase()</a> </dd></dl>

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<p>Titlecase an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#gabca0474405604234294cc5a4e341ca18" title="Titlecase an M-text.">mtext_titlecase()</a> function destructively converts the first character with the cased property in M-text <b>mt</b> to titlecase and the others to lowercase. The length of <b>mt</b> may change. If the character cannot be converted to titlecase, it is left unchanged. All the text properties are inherited.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns the length of the updated <b>mt</b>.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gab2a252c7ef64c168467475f0e4ffe072" title="Lowercase an M-text.">mtext_lowercase()</a>, <a class="el" href="group__m17nMtext.html#gaf8dbb06e910d0f87dbb53d4426977d4f" title="Uppercase an M-text.">mtext_uppercase()</a> </dd></dl>

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          <td class="paramtype"><a class="el" href="group__m17nMtext.html#gae8bba45315c15c8f79ec4a73ebc52aec">MText</a> *&nbsp;</td>
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<p>Uppercase an M-text. </p>
<p>The <a class="el" href="group__m17nMtext.html#gaf8dbb06e910d0f87dbb53d4426977d4f" title="Uppercase an M-text.">mtext_uppercase()</a> function destructively converts each character in M-text <b>mt</b> to uppercase. Adjacent characters in <b>mt</b> may affect the case conversion. If the Mlanguage text property is attached to <b>mt</b>, it may also affect the conversion. The length of <b>mt</b> may change. Characters that cannot be converted to uppercase is left unchanged. All the text properties are inherited.</p>
<dl class="user"><dt><b>Return value:</b></dt><dd>This function returns the length of the updated <b>mt</b>.</dd></dl>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#gab2a252c7ef64c168467475f0e4ffe072" title="Lowercase an M-text.">mtext_lowercase()</a>, <a class="el" href="group__m17nMtext.html#gabca0474405604234294cc5a4e341ca18" title="Titlecase an M-text.">mtext_titlecase()</a> </dd></dl>

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<hr/><h2>Variable Documentation</h2>
<a class="anchor" id="ga985ecc7ae135b77919af483d12d4d337"></a><!-- doxytag: member="m17n&#45;core.h::MTEXT_FORMAT_UTF_16" ref="ga985ecc7ae135b77919af483d12d4d337" args="" -->
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          <td class="memname">enum <a class="el" href="group__m17nMtext.html#ga4148a7a6fd502d4fb4a786d9fdb7da59">MTextFormat</a> <a class="el" href="group__m17nMtext.html#ga985ecc7ae135b77919af483d12d4d337">MTEXT_FORMAT_UTF_16</a></td>
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<p>Variable of value MTEXT_FORMAT_UTF_16LE or MTEXT_FORMAT_UTF_16BE. </p>
<p>The global variable <a class="el" href="group__m17nMtext.html#ga985ecc7ae135b77919af483d12d4d337" title="Variable of value MTEXT_FORMAT_UTF_16LE or MTEXT_FORMAT_UTF_16BE.">MTEXT_FORMAT_UTF_16</a> is initialized to <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a42252ef5d95a78cc719768d0fa3ce209">MTEXT_FORMAT_UTF_16LE</a> on a "Little Endian" system (storing words with the least significant byte first), and to <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59aab2d4798020fd8edb35089be48170cee">MTEXT_FORMAT_UTF_16BE</a> on a "Big Endian" system (storing words with the most significant byte first).</p>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga2114a8366b5aaee6b5d344f69ea5dd78" title="Allocate a new M-text with specified data.">mtext_from_data()</a> </dd></dl>

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<a class="anchor" id="ga3e3b72f642ea80b03cf0644325fccfbe"></a><!-- doxytag: member="m17n&#45;core.h::MTEXT_FORMAT_UTF_32" ref="ga3e3b72f642ea80b03cf0644325fccfbe" args="" -->
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          <td class="memname">const int <a class="el" href="group__m17nMtext.html#ga3e3b72f642ea80b03cf0644325fccfbe">MTEXT_FORMAT_UTF_32</a></td>
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<p>Variable of value MTEXT_FORMAT_UTF_32LE or MTEXT_FORMAT_UTF_32BE. </p>
<p>The global variable <a class="el" href="group__m17nMtext.html#ga3e3b72f642ea80b03cf0644325fccfbe" title="Variable of value MTEXT_FORMAT_UTF_32LE or MTEXT_FORMAT_UTF_32BE.">MTEXT_FORMAT_UTF_32</a> is initialized to <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a79785b67787c6ca1e9c415a2d76df1be">MTEXT_FORMAT_UTF_32LE</a> on a "Little Endian" system (storing words with the least significant byte first), and to <a class="el" href="group__m17nMtext.html#gga4148a7a6fd502d4fb4a786d9fdb7da59a07b67ef89723794acb1ba743a30a79ef">MTEXT_FORMAT_UTF_32BE</a> on a "Big Endian" system (storing words with the most significant byte first).</p>
<dl class="user"><dt><b>See Also:</b></dt><dd><a class="el" href="group__m17nMtext.html#ga2114a8366b5aaee6b5d344f69ea5dd78" title="Allocate a new M-text with specified data.">mtext_from_data()</a> </dd></dl>

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<a class="anchor" id="ga32374f3750874ea0142af8dac831ab25"></a><!-- doxytag: member="mtext.c::Mlanguage" ref="ga32374f3750874ea0142af8dac831ab25" args="" -->
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          <td class="memname"><a class="el" href="group__m17nSymbol.html#ga0f53a95817f0b5c26442f8e12f89c16d">MSymbol</a> <a class="el" href="group__m17nMtext.html#ga32374f3750874ea0142af8dac831ab25">Mlanguage</a></td>
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<p>The symbol whose name is "language". </p>

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