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1
19 package gcc.util;
20
21 import java.util.*;
22
23 public class ListUtil
24 {
25
29 public static void addIfNotPresent(List list, Object item)
30 {
31 if (! list.contains(item))
32 {
33 list.add(item);
34 }
35 }
36
37 public static ArrayList getCommaSeparatedList(String arg)
38 {
39 return getListWithSeparator(arg, ",");
40 }
41
42 public static ArrayList getPathList(String arg)
43 {
44 return getListWithSeparator(arg, java.io.File.pathSeparator);
45 }
46
47 public static ArrayList getSpaceSeparatedList(String arg)
48 {
49 return getListWithSeparator(arg.replace('\t', ' ').replace('\r', ' ').replace('\n', ' '), " ");
50 }
51
52 public static ArrayList getListWithSeparator(String text, String separator)
53 {
54 ArrayList list = new ArrayList();
55 int n = text.length();
56 StringBuffer item = new StringBuffer();
57 char endQuote = 0;
58 for (int i = 0; i < n; i++)
59 {
60 if (endQuote == 0 && text.startsWith(separator, i))
61 {
62 add(list, item);
63 i += separator.length() - 1;
64 }
65 else
66 {
67 char c = text.charAt(i);
68 item.append(c);
69 if (endQuote != 0)
70 {
71 if (c == endQuote)
72 {
73 endQuote = 0;
74 }
75 }
76 else if (c == '\'' || c == '\"')
77 {
78 endQuote = c;
79 }
80 }
81 }
82 add(list, item);
83 return list;
84 }
85
86 public static String formatCommaSeparatedList(Collection list)
87 {
88 return formatListWithSeparator(list, ",");
89 }
90
91 public static String formatSpaceSeparatedList(Collection list)
92 {
93 return formatListWithSeparator(list, " ");
94 }
95
96 public static String formatListWithSeparator(Collection list, String separator)
97 {
98 StringBuffer buffer = new StringBuffer();
99 for (Iterator i = list.iterator(); i.hasNext();)
100 {
101 Object item = i.next();
102 if (buffer.length() != 0)
103 {
104 buffer.append(separator);
105 }
106 buffer.append(item.toString());
107 }
108 return buffer.toString();
109 }
110
111 public static ArrayList getArrayList(Object[] array)
112 {
113 int n = array.length;
114 ArrayList list = new ArrayList(n);
115 for (int i = 0; i < n; i++)
116 {
117 list.add(array[i]);
118 }
119 return list;
120 }
121
122 public static String[] getStringArray(List list)
123 {
124 int n = list.size();
125 String[] array = new String[n];
126 int i = 0;
127 for (Iterator j = list.iterator(); j.hasNext(); i++)
128 {
129 String s = (String)j.next();
130 array[i] = s;
131 }
132 return array;
133 }
134
135 public static void printAll(java.io.PrintStream out, String rowPrefix, Collection values)
136 {
137 for (Iterator i = values.iterator(); i.hasNext();)
138 {
139 Object value = i.next();
140 if (rowPrefix != null)
141 {
142 out.print(rowPrefix);
143 }
144 out.println(value);
145 }
146 }
147
148
152 private static void add(List list, StringBuffer itemBuffer)
153 {
154 String item = itemBuffer.toString().trim();
155 if (item.length() != 0)
156 {
157 list.add(item);
158 }
159 itemBuffer.setLength(0);
160 }
161 }
162 |
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