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<h2>
<span class="refentrytitle">strchar</span>
</h2>
<p>strchar —
Return the ASCII code of a character in a string
</p>
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<div class="refsect1">
<a id="idm281472883952472"></a>
<h2>Description</h2>
<p>
Return the ASCII code of the character in Sstr at ipos (defaults to zero
which means the first character), or zero if ipos is out of range.
strchar runs at init time only.
</p>
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<h2>Syntax</h2>
<pre class="synopsis">ichr <span class="command"><strong>strchar</strong></span> Sstr[, ipos]</pre>
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<div class="refsect1">
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<h2>Examples</h2>
<p>
Here is an example of the strchar opcode. It uses the file <a class="ulink" href="examples/strchar.csd" target="_top"><em class="citetitle">strchar.csd</em></a>.
</p>
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<a id="idm281472883893032"></a>
<p class="title">
<strong>Example 949. Example of the strchar opcode.</strong>
</p>
<div class="example-contents">
<p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
<div class="refsect1">
<a id="idm281472705282040"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></span>
-ndm0
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="c1">;example by joachim heintz 2013</span>
<span class="kd">opcode</span> <span class="nf">ToAscii</span><span class="p">,</span> <span class="kt">S</span><span class="p">,</span> <span class="kt">S</span> <span class="c1">;returns the ASCII numbers of the input string as string</span>
S<span class="n">in</span> <span class="nb">xin</span> <span class="c1">;input string</span>
i<span class="n">len</span> <span class="nb">strlen</span> S<span class="n">in</span> <span class="c1">;its length</span>
i<span class="n">pos</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1">;set counter to zero</span>
S<span class="n">res</span> <span class="o">=</span> <span class="s">""</span> <span class="c1">;initialize output string</span>
<span class="nl">loop</span><span class="p">:</span> <span class="c1">;for all characters in input string:</span>
i<span class="n">chr</span> <span class="nb">strchar</span> S<span class="n">in</span><span class="p">,</span> i<span class="n">pos</span> <span class="c1">;get its ascii code number</span>
S<span class="n">new</span> <span class="nb">sprintf</span> <span class="s">"</span><span class="si">%d</span><span class="s"> "</span><span class="p">,</span> i<span class="n">chr</span> <span class="c1">;put this number into a new string</span>
S<span class="n">res</span> <span class="nb">strcat</span> S<span class="n">res</span><span class="p">,</span> S<span class="n">new</span> <span class="c1">;append this to the output string</span>
<span class="k">loop_lt</span> i<span class="n">pos</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> i<span class="n">len</span><span class="p">,</span> <span class="nl">loop</span> <span class="c1">;see comment for 'loop:'</span>
<span class="nb">xout</span> S<span class="n">res</span> <span class="c1">;return output string</span>
<span class="kd">endop</span>
<span class="kd">instr</span> <span class="nf">Characters</span>
<span class="nb">printf_i</span> <span class="s">"</span><span class="se">\n</span><span class="s">Characters:</span><span class="se">\n</span><span class="s"> given as single strings: %s%s%s%s%s%s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="s">"c"</span><span class="p">,</span> <span class="s">"s"</span><span class="p">,</span> <span class="s">"o"</span><span class="p">,</span> <span class="s">"u"</span><span class="p">,</span> <span class="s">"n"</span><span class="p">,</span> <span class="s">"d"</span>
<span class="nb">printf_i</span> <span class="s">" but can also be given as numbers: </span><span class="si">%c%c%c%c%c%c</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">99</span><span class="p">,</span> <span class="mi">115</span><span class="p">,</span> <span class="mi">111</span><span class="p">,</span> <span class="mi">117</span><span class="p">,</span> <span class="mi">110</span><span class="p">,</span> <span class="mi">100</span>
S<span class="n">csound</span> <span class="nf">ToAscii</span> <span class="s">"csound"</span>
<span class="nb">printf_i</span> <span class="s">" in csound, the ASCII code of a character can be accessed with the opcode strchar.%s"</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="s">"</span><span class="se">\n</span><span class="s">"</span>
<span class="nb">printf_i</span> <span class="s">" the name 'csound' returns the numbers %s</span><span class="se">\n\n</span><span class="s">"</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> S<span class="n">csound</span>
<span class="kd">endin</span>
<span class="nt"></CsInstruments></span>
<span class="nt"><CsScore></span>
<span class="nb">i</span> <span class="s">"Characters"</span> <span class="mi">0</span> <span class="mi">0</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
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<p><br class="example-break" />
</p>
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<div class="refsect1">
<a id="idm281472883888840"></a>
<h2>See also</h2>
<p>
<a class="link" href="strchark.html" title="strchark">
<em class="citetitle">strchark</em>
</a>
</p>
</div>
<div class="refsect1">
<a id="idm281472883887048"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Istvan Varga</td>
</tr>
<tr>
<td>2006</td>
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