WvStreams
wvlistex.cc
1/*
2 * A WvStringList example.
3 *
4 * Some text about this example...
5 */
6
7#include "wvstring.h"
8#include "wvlinklist.h"
9
10DeclareWvList(WvString); // creates class WvStringList
11
12int main()
13{
15 WvStringList::Iter i(l);
16 WvString autostr("bork bork");
17
18 l.append(new WvString("blah blah"), true); // auto-free enabled
19 l.append(&autostr, false); // auto-free disabled: C++ will do this one
20 // etc
21
22 for (i.rewind(); i.next(); )
23 {
24 // we will learn a nicer way to do this with WvStream later.
25 // we could typecast i() to (const char *), but the cstr() member
26 // function is nicer (we all avoid typecasts when possible, right?)
27 printf("%s\n", i().cstr());
28 }
29
30 printf("Is the list empty? %s\n",l.isempty() ? "Yes" : "No");
31
32 printf("The first element is: %s\n", l.first()->cstr());
33 printf("The last element is: %s\n", l.last()->cstr());
34
35 // exiting this function will have C++ auto-free the list, which
36 // causes the list to auto-free the "blah blah" string. C++ also
37 // auto-frees the "bork bork" string automatically. It doesn't matter
38 // that "bork bork" is freed before the list destructor is called; the
39 // list doesn't refer to its members during destruction, unless it
40 // needs to free the elements by itself.
41
42}
This is a WvList of WvStrings, and is a really handy way to parse strings.
WvString is an implementation of a simple and efficient printable-string class.