blob: 0fe84213ca461c16fbdd36f130a95106c8def23d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
package bjc.utils.funcdata;
import java.util.StringTokenizer;
import java.util.function.Consumer;
import java.util.function.Function;
/**
* A string tokenizer that exposes a functional interface
* @author ben
*
*/
public class FunctionalStringTokenizer {
private StringTokenizer inp;
/**
* Create a functional string tokenizer from a non-functional one
* @param inp The non-functional string tokenizer to wrap
*/
public FunctionalStringTokenizer(StringTokenizer inp) {
this.inp = inp;
}
/**
* Execute a provided action for each of the remaining tokens
* @param f The action to execute for each token
*/
public void forEachToken(Consumer<String> f) {
while(inp.hasMoreTokens()) {
f.accept(inp.nextToken());
}
}
/**
* Return the next token from the tokenizer
* Returns null if no more tokens are available
* @return The next token from the tokenizer
*/
public String nextToken() {
return inp.hasMoreTokens() ? inp.nextToken() : null;
}
/**
* Convert the contents of this tokenizer into a list.
* Consumes all of the input from this tokenizer.
* @param f The function to use to convert tokens.
* @return A list containing all of the converted tokens.
*/
public <E> FunctionalList<E> toList(Function<String, E> f) {
FunctionalList<E> r = new FunctionalList<>();
forEachToken(tk -> r.add(f.apply(tk)));
return r;
}
/**
* Create a new tokenizer from the specified string.
* @param s The string to create a tokenizer from.
* @return A new tokenizer that splits the provided string on spaces.
*/
public static FunctionalStringTokenizer fromString(String s) {
return new FunctionalStringTokenizer(new StringTokenizer(s, " "));
}
}
|
