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15 <title>Aspell Developer’s Manual: Strings</title>
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73 <a name="Strings-1"></a>
74 <h2 class="chapter">7 Strings</h2>
77 <h3 class="section">7.1 String</h3>
79 <p>The <code>String</code> class provided the same functionality of the C++
80 string except for fewer constructors. It also inherits <code>OStream</code>
81 so that you can write to it with the <code><<</code> operator. It is
82 defined in <code>string.hpp</code>.
84 <a name="ParmString"></a>
85 <h3 class="section">7.2 ParmString</h3>
87 <p>ParmString is a special string class that is designed to be used as a
88 parameter for a function that is expecting a string. It is defined in
89 <code>parm_string.hpp</code>. It will allow either a <code>const char *</code> or
90 <code>String</code> class to be passed in. It will automatically convert to
91 a <code>const char *</code>. The string can also be accessed via the
92 <code>str</code> method. Usage example:
93 </p><pre class="verbatim">void foo(ParmString s1, ParmString s2) {
94 const char * str0 = s1;
95 unsigned int size0 = s2.size()
96 if (s1 == s2 || s2 == "bar") {
101 String s1 = "...";
103 const char * s2 = "...";
106 <p>This class should be used when a string is being passed in as a
107 parameter. It is faster than using <code>const String &</code> (as that
108 will create an unnecessary temporary when a <code>const char *</code> is
109 passed in), and is less annoying than using <code>const char *</code> (as it
110 doesn’t require the <code>c_str()</code> method to be used when a
111 <code>String</code> is passed in).
113 <a name="CharVector"></a>
114 <h3 class="section">7.3 CharVector</h3>
116 <p>A character vector is basically a <code>Vector<char></code> but it has a few
117 additional methods for dealing with strings which <code>Vector</code> does
118 not provide. It, like <code>String</code>, is also inherits <code>OStream</code>
119 so that you can write to it with the <code><<</code> operator. It is
120 defined in <code>char_vector.hpp</code>. Use it when ever you need a string
121 which is guaranteed to be in a continuous block of memory which you
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